diff --git a/dist/bridge.js b/dist/bridge.js new file mode 100644 index 00000000..bae700d7 --- /dev/null +++ b/dist/bridge.js @@ -0,0 +1,1000 @@ +'use strict'; + +/** + * __ ___ ____ _ _ ___ _ _ ____ + * \ \ / / \ | _ \| \ | |_ _| \ | |/ ___| + * \ \ /\ / / _ \ | |_) | \| || || \| | | _ + * \ V V / ___ \| _ <| |\ || || |\ | |_| | + * \_/\_/_/ \_\_| \_\_| \_|___|_| \_|\____| + * + * This file is critical for vm2. It implements the bridge between the host and the sandbox. + * If you do not know exactly what you are doing, you should NOT edit this file. + * + * The file is loaded in the host and sandbox to handle objects in both directions. + * This is done to ensure that RangeErrors are from the correct context. + * The boundary between the sandbox and host might throw RangeErrors from both contexts. + * Therefore, thisFromOther and friends can handle objects from both domains. + * + * Method parameters have comments to tell from which context they came. + * + */ + +const globalsList = [ + 'Number', + 'String', + 'Boolean', + 'Date', + 'RegExp', + 'Map', + 'WeakMap', + 'Set', + 'WeakSet', + 'Promise', + 'Function' +]; + +const errorsList = [ + 'RangeError', + 'ReferenceError', + 'SyntaxError', + 'TypeError', + 'EvalError', + 'URIError', + 'Error' +]; + +const OPNA = 'Operation not allowed on contextified object.'; + +const thisGlobalPrototypes = { + __proto__: null, + Object: Object.prototype, + Array: Array.prototype +}; + +for (let i = 0; i < globalsList.length; i++) { + const key = globalsList[i]; + const g = global[key]; + if (g) thisGlobalPrototypes[key] = g.prototype; +} + +for (let i = 0; i < errorsList.length; i++) { + const key = errorsList[i]; + const g = global[key]; + if (g) thisGlobalPrototypes[key] = g.prototype; +} + +const { + getPrototypeOf: thisReflectGetPrototypeOf, + setPrototypeOf: thisReflectSetPrototypeOf, + defineProperty: thisReflectDefineProperty, + deleteProperty: thisReflectDeleteProperty, + getOwnPropertyDescriptor: thisReflectGetOwnPropertyDescriptor, + isExtensible: thisReflectIsExtensible, + preventExtensions: thisReflectPreventExtensions, + apply: thisReflectApply, + construct: thisReflectConstruct, + set: thisReflectSet, + get: thisReflectGet, + has: thisReflectHas, + ownKeys: thisReflectOwnKeys, + enumerate: thisReflectEnumerate, +} = Reflect; + +const thisObject = Object; +const { + freeze: thisObjectFreeze, + prototype: thisObjectPrototype +} = thisObject; +const thisObjectHasOwnProperty = thisObjectPrototype.hasOwnProperty; +const ThisProxy = Proxy; +const ThisWeakMap = WeakMap; +const { + get: thisWeakMapGet, + set: thisWeakMapSet +} = ThisWeakMap.prototype; +const ThisMap = Map; +const thisMapGet = ThisMap.prototype.get; +const thisMapSet = ThisMap.prototype.set; +const thisFunction = Function; +const thisFunctionBind = thisFunction.prototype.bind; +const thisArrayIsArray = Array.isArray; +const thisErrorCaptureStackTrace = Error.captureStackTrace; + +const thisSymbolToString = Symbol.prototype.toString; +const thisSymbolToStringTag = Symbol.toStringTag; + +/** + * VMError. + * + * @public + * @extends {Error} + */ +class VMError extends Error { + + /** + * Create VMError instance. + * + * @public + * @param {string} message - Error message. + * @param {string} code - Error code. + */ + constructor(message, code) { + super(message); + + this.name = 'VMError'; + this.code = code; + + thisErrorCaptureStackTrace(this, this.constructor); + } +} + +thisGlobalPrototypes['VMError'] = VMError.prototype; + +function thisUnexpected() { + return new VMError('Unexpected'); +} + +if (!thisReflectSetPrototypeOf(exports, null)) throw thisUnexpected(); + +function thisSafeGetOwnPropertyDescriptor(obj, key) { + const desc = thisReflectGetOwnPropertyDescriptor(obj, key); + if (!desc) return desc; + if (!thisReflectSetPrototypeOf(desc, null)) throw thisUnexpected(); + return desc; +} + +function thisThrowCallerCalleeArgumentsAccess(key) { + 'use strict'; + thisThrowCallerCalleeArgumentsAccess[key]; + return thisUnexpected(); +} + +function thisIdMapping(factory, other) { + return other; +} + +const thisThrowOnKeyAccessHandler = thisObjectFreeze({ + __proto__: null, + get(target, key, receiver) { + if (typeof key === 'symbol') { + key = thisReflectApply(thisSymbolToString, key, []); + } + throw new VMError(`Unexpected access to key '${key}'`); + } +}); + +const emptyForzenObject = thisObjectFreeze({ + __proto__: null +}); + +const thisThrowOnKeyAccess = new ThisProxy(emptyForzenObject, thisThrowOnKeyAccessHandler); + +function SafeBase() {} + +if (!thisReflectDefineProperty(SafeBase, 'prototype', { + __proto__: null, + value: thisThrowOnKeyAccess +})) throw thisUnexpected(); + +function SHARED_FUNCTION() {} + +const TEST_PROXY_HANDLER = thisObjectFreeze({ + __proto__: thisThrowOnKeyAccess, + construct() { + return this; + } +}); + +function thisIsConstructor(obj) { + // Note: obj@any(unsafe) + const Func = new ThisProxy(obj, TEST_PROXY_HANDLER); + try { + // eslint-disable-next-line no-new + new Func(); + return true; + } catch (e) { + return false; + } +} + +function thisCreateTargetObject(obj, proto) { + // Note: obj@any(unsafe) proto@any(unsafe) returns@this(unsafe) throws@this(unsafe) + let base; + if (typeof obj === 'function') { + if (thisIsConstructor(obj)) { + // Bind the function since bound functions do not have a prototype property. + base = thisReflectApply(thisFunctionBind, SHARED_FUNCTION, [null]); + } else { + base = () => {}; + } + } else if (thisArrayIsArray(obj)) { + base = []; + } else { + return {__proto__: proto}; + } + if (!thisReflectSetPrototypeOf(base, proto)) throw thisUnexpected(); + return base; +} + +function createBridge(otherInit, registerProxy) { + + const mappingOtherToThis = new ThisWeakMap(); + const protoMappings = new ThisMap(); + const protoName = new ThisMap(); + + function thisAddProtoMapping(proto, other, name) { + // Note: proto@this(unsafe) other@other(unsafe) name@this(unsafe) throws@this(unsafe) + thisReflectApply(thisMapSet, protoMappings, [proto, thisIdMapping]); + thisReflectApply(thisMapSet, protoMappings, [other, + (factory, object) => thisProxyOther(factory, object, proto)]); + if (name) thisReflectApply(thisMapSet, protoName, [proto, name]); + } + + function thisAddProtoMappingFactory(protoFactory, other, name) { + // Note: protoFactory@this(unsafe) other@other(unsafe) name@this(unsafe) throws@this(unsafe) + let proto; + thisReflectApply(thisMapSet, protoMappings, [other, + (factory, object) => { + if (!proto) { + proto = protoFactory(); + thisReflectApply(thisMapSet, protoMappings, [proto, thisIdMapping]); + if (name) thisReflectApply(thisMapSet, protoName, [proto, name]); + } + return thisProxyOther(factory, object, proto); + }]); + } + + const result = { + __proto__: null, + globalPrototypes: thisGlobalPrototypes, + safeGetOwnPropertyDescriptor: thisSafeGetOwnPropertyDescriptor, + fromArguments: thisFromOtherArguments, + from: thisFromOther, + fromWithFactory: thisFromOtherWithFactory, + ensureThis: thisEnsureThis, + mapping: mappingOtherToThis, + connect: thisConnect, + reflectSet: thisReflectSet, + reflectGet: thisReflectGet, + reflectDefineProperty: thisReflectDefineProperty, + reflectDeleteProperty: thisReflectDeleteProperty, + reflectApply: thisReflectApply, + reflectConstruct: thisReflectConstruct, + reflectHas: thisReflectHas, + reflectOwnKeys: thisReflectOwnKeys, + reflectEnumerate: thisReflectEnumerate, + reflectGetPrototypeOf: thisReflectGetPrototypeOf, + reflectIsExtensible: thisReflectIsExtensible, + reflectPreventExtensions: thisReflectPreventExtensions, + objectHasOwnProperty: thisObjectHasOwnProperty, + weakMapSet: thisWeakMapSet, + addProtoMapping: thisAddProtoMapping, + addProtoMappingFactory: thisAddProtoMappingFactory, + defaultFactory, + protectedFactory, + readonlyFactory, + VMError + }; + + const isHost = typeof otherInit !== 'object'; + + if (isHost) { + otherInit = otherInit(result, registerProxy); + } + + result.other = otherInit; + + const { + globalPrototypes: otherGlobalPrototypes, + safeGetOwnPropertyDescriptor: otherSafeGetOwnPropertyDescriptor, + fromArguments: otherFromThisArguments, + from: otherFromThis, + mapping: mappingThisToOther, + reflectSet: otherReflectSet, + reflectGet: otherReflectGet, + reflectDefineProperty: otherReflectDefineProperty, + reflectDeleteProperty: otherReflectDeleteProperty, + reflectApply: otherReflectApply, + reflectConstruct: otherReflectConstruct, + reflectHas: otherReflectHas, + reflectOwnKeys: otherReflectOwnKeys, + reflectEnumerate: otherReflectEnumerate, + reflectGetPrototypeOf: otherReflectGetPrototypeOf, + reflectIsExtensible: otherReflectIsExtensible, + reflectPreventExtensions: otherReflectPreventExtensions, + objectHasOwnProperty: otherObjectHasOwnProperty, + weakMapSet: otherWeakMapSet + } = otherInit; + + function thisOtherHasOwnProperty(object, key) { + // Note: object@other(safe) key@prim throws@this(unsafe) + try { + return otherReflectApply(otherObjectHasOwnProperty, object, [key]) === true; + } catch (e) { // @other(unsafe) + throw thisFromOtherForThrow(e); + } + } + + function thisDefaultGet(handler, object, key, desc) { + // Note: object@other(unsafe) key@prim desc@other(safe) + let ret; // @other(unsafe) + if (desc.get || desc.set) { + const getter = desc.get; + if (!getter) return undefined; + try { + ret = otherReflectApply(getter, object, [key]); + } catch (e) { + throw thisFromOtherForThrow(e); + } + } else { + ret = desc.value; + } + return handler.fromOtherWithContext(ret); + } + + function otherFromThisIfAvailable(to, from, key) { + // Note: to@other(safe) from@this(safe) key@prim throws@this(unsafe) + if (!thisReflectApply(thisObjectHasOwnProperty, from, [key])) return false; + try { + to[key] = otherFromThis(from[key]); + } catch (e) { // @other(unsafe) + throw thisFromOtherForThrow(e); + } + return true; + } + + class BaseHandler extends SafeBase { + + constructor(object) { + // Note: object@other(unsafe) throws@this(unsafe) + super(); + this.object = object; + } + + getFactory() { + return defaultFactory; + } + + fromOtherWithContext(other) { + // Note: other@other(unsafe) throws@this(unsafe) + return thisFromOtherWithFactory(this.getFactory(), other); + } + + doPreventExtensions(target, object, factory) { + // Note: target@this(unsafe) object@other(unsafe) throws@this(unsafe) + let keys; // @other(safe-array-of-prim) + try { + keys = otherReflectOwnKeys(object); + } catch (e) { // @other(unsafe) + throw thisFromOtherForThrow(e); + } + for (let i = 0; i < keys.length; i++) { + const key = keys[i]; // @prim + let desc; + try { + desc = otherSafeGetOwnPropertyDescriptor(object, key); + } catch (e) { // @other(unsafe) + throw thisFromOtherForThrow(e); + } + if (!desc) continue; + if (!desc.configurable) { + const current = thisSafeGetOwnPropertyDescriptor(target, key); + if (current && !current.configurable) continue; + if (desc.get || desc.set) { + desc.get = this.fromOtherWithContext(desc.get); + desc.set = this.fromOtherWithContext(desc.set); + } else if (typeof object === 'function' && (key === 'caller' || key === 'callee' || key === 'arguments')) { + desc.value = null; + } else { + desc.value = this.fromOtherWithContext(desc.value); + } + } else { + if (desc.get || desc.set) { + desc = { + __proto__: null, + configurable: true, + enumerable: desc.enumerable, + writable: true, + value: null + }; + } else { + desc.value = null; + } + } + if (!thisReflectDefineProperty(target, key, desc)) throw thisUnexpected(); + } + if (!thisReflectPreventExtensions(target)) throw thisUnexpected(); + } + + get(target, key, receiver) { + // Note: target@this(unsafe) key@prim receiver@this(unsafe) throws@this(unsafe) + const object = this.object; // @other(unsafe) + switch (key) { + case 'constructor': { + const desc = otherSafeGetOwnPropertyDescriptor(object, key); + if (desc) return thisDefaultGet(this, object, key, desc); + const proto = thisReflectGetPrototypeOf(target); + return proto === null ? undefined : proto.constructor; + } + case '__proto__': { + const desc = otherSafeGetOwnPropertyDescriptor(object, key); + if (desc) return thisDefaultGet(this, object, key, desc); + return thisReflectGetPrototypeOf(target); + } + case thisSymbolToStringTag: + if (!thisOtherHasOwnProperty(object, thisSymbolToStringTag)) { + const proto = thisReflectGetPrototypeOf(target); + const name = thisReflectApply(thisMapGet, protoName, [proto]); + if (name) return name; + } + break; + case 'arguments': + case 'caller': + case 'callee': + if (typeof object === 'function' && thisOtherHasOwnProperty(object, key)) { + throw thisThrowCallerCalleeArgumentsAccess(key); + } + break; + } + let ret; // @other(unsafe) + try { + ret = otherReflectGet(object, key); + } catch (e) { // @other(unsafe) + throw thisFromOtherForThrow(e); + } + return this.fromOtherWithContext(ret); + } + + set(target, key, value, receiver) { + // Note: target@this(unsafe) key@prim value@this(unsafe) receiver@this(unsafe) throws@this(unsafe) + const object = this.object; // @other(unsafe) + if (key === '__proto__' && !thisOtherHasOwnProperty(object, key)) { + return this.setPrototypeOf(target, value); + } + try { + value = otherFromThis(value); + return otherReflectSet(object, key, value) === true; + } catch (e) { // @other(unsafe) + throw thisFromOtherForThrow(e); + } + } + + getPrototypeOf(target) { + // Note: target@this(unsafe) + return thisReflectGetPrototypeOf(target); + } + + setPrototypeOf(target, value) { + // Note: target@this(unsafe) throws@this(unsafe) + throw new VMError(OPNA); + } + + apply(target, context, args) { + // Note: target@this(unsafe) context@this(unsafe) args@this(safe-array) throws@this(unsafe) + const object = this.object; // @other(unsafe) + let ret; // @other(unsafe) + try { + context = otherFromThis(context); + args = otherFromThisArguments(args); + ret = otherReflectApply(object, context, args); + } catch (e) { // @other(unsafe) + throw thisFromOtherForThrow(e); + } + return thisFromOther(ret); + } + + construct(target, args, newTarget) { + // Note: target@this(unsafe) args@this(safe-array) newTarget@this(unsafe) throws@this(unsafe) + const object = this.object; // @other(unsafe) + let ret; // @other(unsafe) + try { + args = otherFromThisArguments(args); + ret = otherReflectConstruct(object, args); + } catch (e) { // @other(unsafe) + throw thisFromOtherForThrow(e); + } + return thisFromOtherWithFactory(this.getFactory(), ret, thisFromOther(object)); + } + + getOwnPropertyDescriptorDesc(target, prop, desc) { + // Note: target@this(unsafe) prop@prim desc@other{safe} throws@this(unsafe) + const object = this.object; // @other(unsafe) + if (desc && typeof object === 'function' && (prop === 'arguments' || prop === 'caller' || prop === 'callee')) desc.value = null; + return desc; + } + + getOwnPropertyDescriptor(target, prop) { + // Note: target@this(unsafe) prop@prim throws@this(unsafe) + const object = this.object; // @other(unsafe) + let desc; // @other(safe) + try { + desc = otherSafeGetOwnPropertyDescriptor(object, prop); + } catch (e) { // @other(unsafe) + throw thisFromOtherForThrow(e); + } + + desc = this.getOwnPropertyDescriptorDesc(target, prop, desc); + + if (!desc) return undefined; + + let thisDesc; + if (desc.get || desc.set) { + thisDesc = { + __proto__: null, + get: this.fromOtherWithContext(desc.get), + set: this.fromOtherWithContext(desc.set), + enumerable: desc.enumerable === true, + configurable: desc.configurable === true + }; + } else { + thisDesc = { + __proto__: null, + value: this.fromOtherWithContext(desc.value), + writable: desc.writable === true, + enumerable: desc.enumerable === true, + configurable: desc.configurable === true + }; + } + if (!thisDesc.configurable) { + const oldDesc = thisSafeGetOwnPropertyDescriptor(target, prop); + if (!oldDesc || oldDesc.configurable || oldDesc.writable !== thisDesc.writable) { + if (!thisReflectDefineProperty(target, prop, thisDesc)) throw thisUnexpected(); + } + } + return thisDesc; + } + + definePropertyDesc(target, prop, desc) { + // Note: target@this(unsafe) prop@prim desc@this(safe) throws@this(unsafe) + return desc; + } + + defineProperty(target, prop, desc) { + // Note: target@this(unsafe) prop@prim desc@this(unsafe) throws@this(unsafe) + const object = this.object; // @other(unsafe) + if (!thisReflectSetPrototypeOf(desc, null)) throw thisUnexpected(); + + desc = this.definePropertyDesc(target, prop, desc); + + if (!desc) return false; + + let otherDesc = {__proto__: null}; + let hasFunc = true; + let hasValue = true; + let hasBasic = true; + hasFunc &= otherFromThisIfAvailable(otherDesc, desc, 'get'); + hasFunc &= otherFromThisIfAvailable(otherDesc, desc, 'set'); + hasValue &= otherFromThisIfAvailable(otherDesc, desc, 'value'); + hasValue &= otherFromThisIfAvailable(otherDesc, desc, 'writable'); + hasBasic &= otherFromThisIfAvailable(otherDesc, desc, 'enumerable'); + hasBasic &= otherFromThisIfAvailable(otherDesc, desc, 'configurable'); + + try { + if (!otherReflectDefineProperty(object, prop, otherDesc)) return false; + if (otherDesc.configurable !== true && (!hasBasic || !(hasFunc || hasValue))) { + otherDesc = otherSafeGetOwnPropertyDescriptor(object, prop); + } + } catch (e) { // @other(unsafe) + throw thisFromOtherForThrow(e); + } + + if (!otherDesc.configurable) { + let thisDesc; + if (otherDesc.get || otherDesc.set) { + thisDesc = { + __proto__: null, + get: this.fromOtherWithContext(otherDesc.get), + set: this.fromOtherWithContext(otherDesc.set), + enumerable: otherDesc.enumerable, + configurable: otherDesc.configurable + }; + } else { + thisDesc = { + __proto__: null, + value: this.fromOtherWithContext(otherDesc.value), + writable: otherDesc.writable, + enumerable: otherDesc.enumerable, + configurable: otherDesc.configurable + }; + } + if (!thisReflectDefineProperty(target, prop, thisDesc)) throw thisUnexpected(); + } + return true; + } + + deleteProperty(target, prop) { + // Note: target@this(unsafe) prop@prim throws@this(unsafe) + const object = this.object; // @other(unsafe) + try { + return otherReflectDeleteProperty(object, prop) === true; + } catch (e) { // @other(unsafe) + throw thisFromOtherForThrow(e); + } + } + + has(target, key) { + // Note: target@this(unsafe) key@prim throws@this(unsafe) + const object = this.object; // @other(unsafe) + try { + return otherReflectHas(object, key) === true; + } catch (e) { // @other(unsafe) + throw thisFromOtherForThrow(e); + } + } + + isExtensible(target) { + // Note: target@this(unsafe) throws@this(unsafe) + const object = this.object; // @other(unsafe) + try { + if (otherReflectIsExtensible(object)) return true; + } catch (e) { // @other(unsafe) + throw thisFromOtherForThrow(e); + } + if (thisReflectIsExtensible(target)) { + this.doPreventExtensions(target, object, this); + } + return false; + } + + ownKeys(target) { + // Note: target@this(unsafe) throws@this(unsafe) + const object = this.object; // @other(unsafe) + let res; // @other(unsafe) + try { + res = otherReflectOwnKeys(object); + } catch (e) { // @other(unsafe) + throw thisFromOtherForThrow(e); + } + return thisFromOther(res); + } + + preventExtensions(target) { + // Note: target@this(unsafe) throws@this(unsafe) + const object = this.object; // @other(unsafe) + try { + if (!otherReflectPreventExtensions(object)) return false; + } catch (e) { // @other(unsafe) + throw thisFromOtherForThrow(e); + } + if (thisReflectIsExtensible(target)) { + this.doPreventExtensions(target, object, this); + } + return true; + } + + enumerate(target) { + // Note: target@this(unsafe) throws@this(unsafe) + const object = this.object; // @other(unsafe) + let res; // @other(unsafe) + try { + res = otherReflectEnumerate(object); + } catch (e) { // @other(unsafe) + throw thisFromOtherForThrow(e); + } + return this.fromOtherWithContext(res); + } + + } + + function defaultFactory(object) { + // Note: other@other(unsafe) returns@this(unsafe) throws@this(unsafe) + return new BaseHandler(object); + } + + class ProtectedHandler extends BaseHandler { + + getFactory() { + return protectedFactory; + } + + set(target, key, value, receiver) { + // Note: target@this(unsafe) key@prim value@this(unsafe) receiver@this(unsafe) throws@this(unsafe) + if (typeof value === 'function') { + return thisReflectDefineProperty(receiver, key, { + __proto__: null, + value: value, + writable: true, + enumerable: true, + configurable: true + }) === true; + } + return super.set(target, key, value, receiver); + } + + definePropertyDesc(target, prop, desc) { + // Note: target@this(unsafe) prop@prim desc@this(safe) throws@this(unsafe) + if (desc && (desc.set || desc.get || typeof desc.value === 'function')) return undefined; + return desc; + } + + } + + function protectedFactory(object) { + // Note: other@other(unsafe) returns@this(unsafe) throws@this(unsafe) + return new ProtectedHandler(object); + } + + class ReadOnlyHandler extends BaseHandler { + + getFactory() { + return readonlyFactory; + } + + set(target, key, value, receiver) { + // Note: target@this(unsafe) key@prim value@this(unsafe) receiver@this(unsafe) throws@this(unsafe) + return thisReflectDefineProperty(receiver, key, { + __proto__: null, + value: value, + writable: true, + enumerable: true, + configurable: true + }); + } + + setPrototypeOf(target, value) { + // Note: target@this(unsafe) throws@this(unsafe) + return false; + } + + defineProperty(target, prop, desc) { + // Note: target@this(unsafe) prop@prim desc@this(unsafe) throws@this(unsafe) + return false; + } + + deleteProperty(target, prop) { + // Note: target@this(unsafe) prop@prim throws@this(unsafe) + return false; + } + + isExtensible(target) { + // Note: target@this(unsafe) throws@this(unsafe) + return false; + } + + preventExtensions(target) { + // Note: target@this(unsafe) throws@this(unsafe) + return false; + } + + } + + function readonlyFactory(object) { + // Note: other@other(unsafe) returns@this(unsafe) throws@this(unsafe) + return new ReadOnlyHandler(object); + } + + class ReadOnlyMockHandler extends ReadOnlyHandler { + + constructor(object, mock) { + // Note: object@other(unsafe) mock:this(unsafe) throws@this(unsafe) + super(object); + this.mock = mock; + } + + get(target, key, receiver) { + // Note: target@this(unsafe) key@prim receiver@this(unsafe) throws@this(unsafe) + const object = this.object; // @other(unsafe) + const mock = this.mock; + if (thisReflectApply(thisObjectHasOwnProperty, mock, key) && !thisOtherHasOwnProperty(object, key)) { + return mock[key]; + } + return super.get(target, key, receiver); + } + + } + + function thisFromOther(other) { + // Note: other@other(unsafe) returns@this(unsafe) throws@this(unsafe) + return thisFromOtherWithFactory(defaultFactory, other); + } + + function thisProxyOther(factory, other, proto) { + const target = thisCreateTargetObject(other, proto); + const handler = factory(other); + const proxy = new ThisProxy(target, handler); + try { + otherReflectApply(otherWeakMapSet, mappingThisToOther, [proxy, other]); + registerProxy(proxy, handler); + } catch (e) { + throw new VMError('Unexpected error'); + } + if (!isHost) { + thisReflectApply(thisWeakMapSet, mappingOtherToThis, [other, proxy]); + return proxy; + } + const proxy2 = new ThisProxy(proxy, emptyForzenObject); + try { + otherReflectApply(otherWeakMapSet, mappingThisToOther, [proxy2, other]); + registerProxy(proxy2, handler); + } catch (e) { + throw new VMError('Unexpected error'); + } + thisReflectApply(thisWeakMapSet, mappingOtherToThis, [other, proxy2]); + return proxy2; + } + + function thisEnsureThis(other) { + const type = typeof other; + switch (type) { + case 'object': + if (other === null) { + return null; + } + // fallthrough + case 'function': + let proto = thisReflectGetPrototypeOf(other); + if (!proto) { + return other; + } + while (proto) { + const mapping = thisReflectApply(thisMapGet, protoMappings, [proto]); + if (mapping) { + const mapped = thisReflectApply(thisWeakMapGet, mappingOtherToThis, [other]); + if (mapped) return mapped; + return mapping(defaultFactory, other); + } + proto = thisReflectGetPrototypeOf(proto); + } + return other; + case 'undefined': + case 'string': + case 'number': + case 'boolean': + case 'symbol': + case 'bigint': + return other; + + default: // new, unknown types can be dangerous + throw new VMError(`Unknown type '${type}'`); + } + } + + function thisFromOtherForThrow(other) { + for (let loop = 0; loop < 10; loop++) { + const type = typeof other; + switch (type) { + case 'object': + if (other === null) { + return null; + } + // fallthrough + case 'function': + const mapped = thisReflectApply(thisWeakMapGet, mappingOtherToThis, [other]); + if (mapped) return mapped; + let proto; + try { + proto = otherReflectGetPrototypeOf(other); + } catch (e) { // @other(unsafe) + other = e; + break; + } + if (!proto) { + return thisProxyOther(defaultFactory, other, null); + } + for (;;) { + const mapping = thisReflectApply(thisMapGet, protoMappings, [proto]); + if (mapping) return mapping(defaultFactory, other); + try { + proto = otherReflectGetPrototypeOf(proto); + } catch (e) { // @other(unsafe) + other = e; + break; + } + if (!proto) return thisProxyOther(defaultFactory, other, thisObjectPrototype); + } + break; + case 'undefined': + case 'string': + case 'number': + case 'boolean': + case 'symbol': + case 'bigint': + return other; + + default: // new, unknown types can be dangerous + throw new VMError(`Unknown type '${type}'`); + } + } + throw new VMError('Exception recursion depth'); + } + + function thisFromOtherWithFactory(factory, other, proto) { + const type = typeof other; + switch (type) { + case 'object': + if (other === null) { + return null; + } + // fallthrough + case 'function': + const mapped = thisReflectApply(thisWeakMapGet, mappingOtherToThis, [other]); + if (mapped) return mapped; + if (proto) { + return thisProxyOther(factory, other, proto); + } + try { + proto = otherReflectGetPrototypeOf(other); + } catch (e) { // @other(unsafe) + throw thisFromOtherForThrow(e); + } + if (!proto) { + return thisProxyOther(factory, other, null); + } + do { + const mapping = thisReflectApply(thisMapGet, protoMappings, [proto]); + if (mapping) return mapping(factory, other); + try { + proto = otherReflectGetPrototypeOf(proto); + } catch (e) { // @other(unsafe) + throw thisFromOtherForThrow(e); + } + } while (proto); + return thisProxyOther(factory, other, thisObjectPrototype); + case 'undefined': + case 'string': + case 'number': + case 'boolean': + case 'symbol': + case 'bigint': + return other; + + default: // new, unknown types can be dangerous + throw new VMError(`Unknown type '${type}'`); + } + } + + function thisFromOtherArguments(args) { + // Note: args@other(safe-array) returns@this(safe-array) throws@this(unsafe) + const arr = []; + for (let i = 0; i < args.length; i++) { + const value = thisFromOther(args[i]); + thisReflectDefineProperty(arr, i, { + __proto__: null, + value: value, + writable: true, + enumerable: true, + configurable: true + }); + } + return arr; + } + + function thisConnect(obj, other) { + // Note: obj@this(unsafe) other@other(unsafe) throws@this(unsafe) + try { + otherReflectApply(otherWeakMapSet, mappingThisToOther, [obj, other]); + } catch (e) { + throw new VMError('Unexpected error'); + } + thisReflectApply(thisWeakMapSet, mappingOtherToThis, [other, obj]); + } + + thisAddProtoMapping(thisGlobalPrototypes.Object, otherGlobalPrototypes.Object); + thisAddProtoMapping(thisGlobalPrototypes.Array, otherGlobalPrototypes.Array); + + for (let i = 0; i < globalsList.length; i++) { + const key = globalsList[i]; + const tp = thisGlobalPrototypes[key]; + const op = otherGlobalPrototypes[key]; + if (tp && op) thisAddProtoMapping(tp, op, key); + } + + for (let i = 0; i < errorsList.length; i++) { + const key = errorsList[i]; + const tp = thisGlobalPrototypes[key]; + const op = otherGlobalPrototypes[key]; + if (tp && op) thisAddProtoMapping(tp, op, 'Error'); + } + + thisAddProtoMapping(thisGlobalPrototypes.VMError, otherGlobalPrototypes.VMError, 'Error'); + + result.BaseHandler = BaseHandler; + result.ProtectedHandler = ProtectedHandler; + result.ReadOnlyHandler = ReadOnlyHandler; + result.ReadOnlyMockHandler = ReadOnlyMockHandler; + + return result; +} + +exports.createBridge = createBridge; +exports.VMError = VMError; diff --git a/dist/events.js b/dist/events.js new file mode 100644 index 00000000..624e8276 --- /dev/null +++ b/dist/events.js @@ -0,0 +1,977 @@ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +// Modified by the vm2 team to make this a standalone module to be loaded into the sandbox. + +'use strict'; + +const host = fromhost; + +const { + Boolean, + Error, + String, + Symbol +} = globalThis; + +const ReflectApply = Reflect.apply; +const ReflectOwnKeys = Reflect.ownKeys; + +const ErrorCaptureStackTrace = Error.captureStackTrace; + +const NumberIsNaN = Number.isNaN; + +const ObjectCreate = Object.create; +const ObjectDefineProperty = Object.defineProperty; +const ObjectDefineProperties = Object.defineProperties; +const ObjectGetPrototypeOf = Object.getPrototypeOf; + +const SymbolFor = Symbol.for; + +function uncurryThis(func) { + return (thiz, ...args) => ReflectApply(func, thiz, args); +} + +const ArrayPrototypeIndexOf = uncurryThis(Array.prototype.indexOf); +const ArrayPrototypeJoin = uncurryThis(Array.prototype.join); +const ArrayPrototypeSlice = uncurryThis(Array.prototype.slice); +const ArrayPrototypeSplice = uncurryThis(Array.prototype.splice); +const ArrayPrototypeUnshift = uncurryThis(Array.prototype.unshift); + +const kRejection = SymbolFor('nodejs.rejection'); + +function inspect(obj) { + return typeof obj === 'symbol' ? obj.toString() : `${obj}`; +} + +function spliceOne(list, index) { + for (; index + 1 < list.length; index++) + list[index] = list[index + 1]; + list.pop(); +} + +function assert(what, message) { + if (!what) throw new Error(message); +} + +function E(key, msg, Base) { + return function NodeError(...args) { + const error = new Base(); + const message = ReflectApply(msg, error, args); + ObjectDefineProperties(error, { + message: { + value: message, + enumerable: false, + writable: true, + configurable: true, + }, + toString: { + value() { + return `${this.name} [${key}]: ${this.message}`; + }, + enumerable: false, + writable: true, + configurable: true, + }, + }); + error.code = key; + return error; + }; +} + + +const ERR_INVALID_ARG_TYPE = E('ERR_INVALID_ARG_TYPE', + (name, expected, actual) => { + assert(typeof name === 'string', "'name' must be a string"); + if (!ArrayIsArray(expected)) { + expected = [expected]; + } + + let msg = 'The '; + if (StringPrototypeEndsWith(name, ' argument')) { + // For cases like 'first argument' + msg += `${name} `; + } else { + const type = StringPrototypeIncludes(name, '.') ? 'property' : 'argument'; + msg += `"${name}" ${type} `; + } + msg += 'must be '; + + const types = []; + const instances = []; + const other = []; + + for (const value of expected) { + assert(typeof value === 'string', + 'All expected entries have to be of type string'); + if (ArrayPrototypeIncludes(kTypes, value)) { + ArrayPrototypePush(types, StringPrototypeToLowerCase(value)); + } else if (RegExpPrototypeTest(classRegExp, value)) { + ArrayPrototypePush(instances, value); + } else { + assert(value !== 'object', + 'The value "object" should be written as "Object"'); + ArrayPrototypePush(other, value); + } + } + + // Special handle `object` in case other instances are allowed to outline + // the differences between each other. + if (instances.length > 0) { + const pos = ArrayPrototypeIndexOf(types, 'object'); + if (pos !== -1) { + ArrayPrototypeSplice(types, pos, 1); + ArrayPrototypePush(instances, 'Object'); + } + } + + if (types.length > 0) { + if (types.length > 2) { + const last = ArrayPrototypePop(types); + msg += `one of type ${ArrayPrototypeJoin(types, ', ')}, or ${last}`; + } else if (types.length === 2) { + msg += `one of type ${types[0]} or ${types[1]}`; + } else { + msg += `of type ${types[0]}`; + } + if (instances.length > 0 || other.length > 0) + msg += ' or '; + } + + if (instances.length > 0) { + if (instances.length > 2) { + const last = ArrayPrototypePop(instances); + msg += + `an instance of ${ArrayPrototypeJoin(instances, ', ')}, or ${last}`; + } else { + msg += `an instance of ${instances[0]}`; + if (instances.length === 2) { + msg += ` or ${instances[1]}`; + } + } + if (other.length > 0) + msg += ' or '; + } + + if (other.length > 0) { + if (other.length > 2) { + const last = ArrayPrototypePop(other); + msg += `one of ${ArrayPrototypeJoin(other, ', ')}, or ${last}`; + } else if (other.length === 2) { + msg += `one of ${other[0]} or ${other[1]}`; + } else { + if (StringPrototypeToLowerCase(other[0]) !== other[0]) + msg += 'an '; + msg += `${other[0]}`; + } + } + + if (actual == null) { + msg += `. Received ${actual}`; + } else if (typeof actual === 'function' && actual.name) { + msg += `. Received function ${actual.name}`; + } else if (typeof actual === 'object') { + if (actual.constructor && actual.constructor.name) { + msg += `. Received an instance of ${actual.constructor.name}`; + } else { + const inspected = inspect(actual, { depth: -1 }); + msg += `. Received ${inspected}`; + } + } else { + let inspected = inspect(actual, { colors: false }); + if (inspected.length > 25) + inspected = `${StringPrototypeSlice(inspected, 0, 25)}...`; + msg += `. Received type ${typeof actual} (${inspected})`; + } + return msg; + }, TypeError); + +const ERR_INVALID_THIS = E('ERR_INVALID_THIS', s => `Value of "this" must be of type ${s}`, TypeError); + +const ERR_OUT_OF_RANGE = E('ERR_OUT_OF_RANGE', + (str, range, input, replaceDefaultBoolean = false) => { + assert(range, 'Missing "range" argument'); + let msg = replaceDefaultBoolean ? str : + `The value of "${str}" is out of range.`; + const received = inspect(input); + msg += ` It must be ${range}. Received ${received}`; + return msg; + }, RangeError); + +const ERR_UNHANDLED_ERROR = E('ERR_UNHANDLED_ERROR', + err => { + const msg = 'Unhandled error.'; + if (err === undefined) return msg; + return `${msg} (${err})`; + }, Error); + +function validateBoolean(value, name) { + if (typeof value !== 'boolean') + throw new ERR_INVALID_ARG_TYPE(name, 'boolean', value); +} + +function validateFunction(value, name) { + if (typeof value !== 'function') + throw new ERR_INVALID_ARG_TYPE(name, 'Function', value); +} + +function validateString(value, name) { + if (typeof value !== 'string') + throw new ERR_INVALID_ARG_TYPE(name, 'string', value); +} + +function nc(cond, e) { + return cond === undefined || cond === null ? e : cond; +} + +function oc(base, key) { + return base === undefined || base === null ? undefined : base[key]; +} + +const kCapture = Symbol('kCapture'); +const kErrorMonitor = host.kErrorMonitor || Symbol('events.errorMonitor'); +const kMaxEventTargetListeners = Symbol('events.maxEventTargetListeners'); +const kMaxEventTargetListenersWarned = + Symbol('events.maxEventTargetListenersWarned'); + +const kIsEventTarget = SymbolFor('nodejs.event_target'); + +function isEventTarget(obj) { + return oc(oc(obj, 'constructor'), kIsEventTarget); +} + +/** + * Creates a new `EventEmitter` instance. + * @param {{ captureRejections?: boolean; }} [opts] + * @constructs {EventEmitter} + */ +function EventEmitter(opts) { + EventEmitter.init.call(this, opts); +} +module.exports = EventEmitter; +if (host.once) module.exports.once = host.once; +if (host.on) module.exports.on = host.on; +if (host.getEventListeners) module.exports.getEventListeners = host.getEventListeners; +// Backwards-compat with node 0.10.x +EventEmitter.EventEmitter = EventEmitter; + +EventEmitter.usingDomains = false; + +EventEmitter.captureRejectionSymbol = kRejection; +ObjectDefineProperty(EventEmitter, 'captureRejections', { + get() { + return EventEmitter.prototype[kCapture]; + }, + set(value) { + validateBoolean(value, 'EventEmitter.captureRejections'); + + EventEmitter.prototype[kCapture] = value; + }, + enumerable: true +}); + +if (host.EventEmitterReferencingAsyncResource) { + const kAsyncResource = Symbol('kAsyncResource'); + const EventEmitterReferencingAsyncResource = host.EventEmitterReferencingAsyncResource; + + class EventEmitterAsyncResource extends EventEmitter { + /** + * @param {{ + * name?: string, + * triggerAsyncId?: number, + * requireManualDestroy?: boolean, + * }} [options] + */ + constructor(options = undefined) { + let name; + if (typeof options === 'string') { + name = options; + options = undefined; + } else { + if (new.target === EventEmitterAsyncResource) { + validateString(oc(options, 'name'), 'options.name'); + } + name = oc(options, 'name') || new.target.name; + } + super(options); + + this[kAsyncResource] = + new EventEmitterReferencingAsyncResource(this, name, options); + } + + /** + * @param {symbol,string} event + * @param {...any} args + * @returns {boolean} + */ + emit(event, ...args) { + if (this[kAsyncResource] === undefined) + throw new ERR_INVALID_THIS('EventEmitterAsyncResource'); + const { asyncResource } = this; + ArrayPrototypeUnshift(args, super.emit, this, event); + return ReflectApply(asyncResource.runInAsyncScope, asyncResource, + args); + } + + /** + * @returns {void} + */ + emitDestroy() { + if (this[kAsyncResource] === undefined) + throw new ERR_INVALID_THIS('EventEmitterAsyncResource'); + this.asyncResource.emitDestroy(); + } + + /** + * @type {number} + */ + get asyncId() { + if (this[kAsyncResource] === undefined) + throw new ERR_INVALID_THIS('EventEmitterAsyncResource'); + return this.asyncResource.asyncId(); + } + + /** + * @type {number} + */ + get triggerAsyncId() { + if (this[kAsyncResource] === undefined) + throw new ERR_INVALID_THIS('EventEmitterAsyncResource'); + return this.asyncResource.triggerAsyncId(); + } + + /** + * @type {EventEmitterReferencingAsyncResource} + */ + get asyncResource() { + if (this[kAsyncResource] === undefined) + throw new ERR_INVALID_THIS('EventEmitterAsyncResource'); + return this[kAsyncResource]; + } + } + EventEmitter.EventEmitterAsyncResource = EventEmitterAsyncResource; +} + +EventEmitter.errorMonitor = kErrorMonitor; + +// The default for captureRejections is false +ObjectDefineProperty(EventEmitter.prototype, kCapture, { + value: false, + writable: true, + enumerable: false +}); + +EventEmitter.prototype._events = undefined; +EventEmitter.prototype._eventsCount = 0; +EventEmitter.prototype._maxListeners = undefined; + +// By default EventEmitters will print a warning if more than 10 listeners are +// added to it. This is a useful default which helps finding memory leaks. +let defaultMaxListeners = 10; + +function checkListener(listener) { + validateFunction(listener, 'listener'); +} + +ObjectDefineProperty(EventEmitter, 'defaultMaxListeners', { + enumerable: true, + get: function() { + return defaultMaxListeners; + }, + set: function(arg) { + if (typeof arg !== 'number' || arg < 0 || NumberIsNaN(arg)) { + throw new ERR_OUT_OF_RANGE('defaultMaxListeners', + 'a non-negative number', + arg); + } + defaultMaxListeners = arg; + } +}); + +ObjectDefineProperties(EventEmitter, { + kMaxEventTargetListeners: { + value: kMaxEventTargetListeners, + enumerable: false, + configurable: false, + writable: false, + }, + kMaxEventTargetListenersWarned: { + value: kMaxEventTargetListenersWarned, + enumerable: false, + configurable: false, + writable: false, + } +}); + +/** + * Sets the max listeners. + * @param {number} n + * @param {EventTarget[] | EventEmitter[]} [eventTargets] + * @returns {void} + */ +EventEmitter.setMaxListeners = + function(n = defaultMaxListeners, ...eventTargets) { + if (typeof n !== 'number' || n < 0 || NumberIsNaN(n)) + throw new ERR_OUT_OF_RANGE('n', 'a non-negative number', n); + if (eventTargets.length === 0) { + defaultMaxListeners = n; + } else { + for (let i = 0; i < eventTargets.length; i++) { + const target = eventTargets[i]; + if (isEventTarget(target)) { + target[kMaxEventTargetListeners] = n; + target[kMaxEventTargetListenersWarned] = false; + } else if (typeof target.setMaxListeners === 'function') { + target.setMaxListeners(n); + } else { + throw new ERR_INVALID_ARG_TYPE( + 'eventTargets', + ['EventEmitter', 'EventTarget'], + target); + } + } + } + }; + +// If you're updating this function definition, please also update any +// re-definitions, such as the one in the Domain module (lib/domain.js). +EventEmitter.init = function(opts) { + + if (this._events === undefined || + this._events === ObjectGetPrototypeOf(this)._events) { + this._events = ObjectCreate(null); + this._eventsCount = 0; + } + + this._maxListeners = this._maxListeners || undefined; + + + if (oc(opts, 'captureRejections')) { + validateBoolean(opts.captureRejections, 'options.captureRejections'); + this[kCapture] = Boolean(opts.captureRejections); + } else { + // Assigning the kCapture property directly saves an expensive + // prototype lookup in a very sensitive hot path. + this[kCapture] = EventEmitter.prototype[kCapture]; + } +}; + +function addCatch(that, promise, type, args) { + if (!that[kCapture]) { + return; + } + + // Handle Promises/A+ spec, then could be a getter + // that throws on second use. + try { + const then = promise.then; + + if (typeof then === 'function') { + then.call(promise, undefined, function(err) { + // The callback is called with nextTick to avoid a follow-up + // rejection from this promise. + process.nextTick(emitUnhandledRejectionOrErr, that, err, type, args); + }); + } + } catch (err) { + that.emit('error', err); + } +} + +function emitUnhandledRejectionOrErr(ee, err, type, args) { + if (typeof ee[kRejection] === 'function') { + ee[kRejection](err, type, ...args); + } else { + // We have to disable the capture rejections mechanism, otherwise + // we might end up in an infinite loop. + const prev = ee[kCapture]; + + // If the error handler throws, it is not catchable and it + // will end up in 'uncaughtException'. We restore the previous + // value of kCapture in case the uncaughtException is present + // and the exception is handled. + try { + ee[kCapture] = false; + ee.emit('error', err); + } finally { + ee[kCapture] = prev; + } + } +} + +/** + * Increases the max listeners of the event emitter. + * @param {number} n + * @returns {EventEmitter} + */ +EventEmitter.prototype.setMaxListeners = function setMaxListeners(n) { + if (typeof n !== 'number' || n < 0 || NumberIsNaN(n)) { + throw new ERR_OUT_OF_RANGE('n', 'a non-negative number', n); + } + this._maxListeners = n; + return this; +}; + +function _getMaxListeners(that) { + if (that._maxListeners === undefined) + return EventEmitter.defaultMaxListeners; + return that._maxListeners; +} + +/** + * Returns the current max listener value for the event emitter. + * @returns {number} + */ +EventEmitter.prototype.getMaxListeners = function getMaxListeners() { + return _getMaxListeners(this); +}; + +/** + * Synchronously calls each of the listeners registered + * for the event. + * @param {string | symbol} type + * @param {...any} [args] + * @returns {boolean} + */ +EventEmitter.prototype.emit = function emit(type, ...args) { + let doError = (type === 'error'); + + const events = this._events; + if (events !== undefined) { + if (doError && events[kErrorMonitor] !== undefined) + this.emit(kErrorMonitor, ...args); + doError = (doError && events.error === undefined); + } else if (!doError) + return false; + + // If there is no 'error' event listener then throw. + if (doError) { + let er; + if (args.length > 0) + er = args[0]; + if (er instanceof Error) { + try { + const capture = {}; + ErrorCaptureStackTrace(capture, EventEmitter.prototype.emit); + } catch (e) {} + + // Note: The comments on the `throw` lines are intentional, they show + // up in Node's output if this results in an unhandled exception. + throw er; // Unhandled 'error' event + } + + let stringifiedEr; + try { + stringifiedEr = inspect(er); + } catch (e) { + stringifiedEr = er; + } + + // At least give some kind of context to the user + const err = new ERR_UNHANDLED_ERROR(stringifiedEr); + err.context = er; + throw err; // Unhandled 'error' event + } + + const handler = events[type]; + + if (handler === undefined) + return false; + + if (typeof handler === 'function') { + const result = handler.apply(this, args); + + // We check if result is undefined first because that + // is the most common case so we do not pay any perf + // penalty + if (result !== undefined && result !== null) { + addCatch(this, result, type, args); + } + } else { + const len = handler.length; + const listeners = arrayClone(handler); + for (let i = 0; i < len; ++i) { + const result = listeners[i].apply(this, args); + + // We check if result is undefined first because that + // is the most common case so we do not pay any perf + // penalty. + // This code is duplicated because extracting it away + // would make it non-inlineable. + if (result !== undefined && result !== null) { + addCatch(this, result, type, args); + } + } + } + + return true; +}; + +function _addListener(target, type, listener, prepend) { + let m; + let events; + let existing; + + checkListener(listener); + + events = target._events; + if (events === undefined) { + events = target._events = ObjectCreate(null); + target._eventsCount = 0; + } else { + // To avoid recursion in the case that type === "newListener"! Before + // adding it to the listeners, first emit "newListener". + if (events.newListener !== undefined) { + target.emit('newListener', type, + nc(listener.listener, listener)); + + // Re-assign `events` because a newListener handler could have caused the + // this._events to be assigned to a new object + events = target._events; + } + existing = events[type]; + } + + if (existing === undefined) { + // Optimize the case of one listener. Don't need the extra array object. + events[type] = listener; + ++target._eventsCount; + } else { + if (typeof existing === 'function') { + // Adding the second element, need to change to array. + existing = events[type] = + prepend ? [listener, existing] : [existing, listener]; + // If we've already got an array, just append. + } else if (prepend) { + existing.unshift(listener); + } else { + existing.push(listener); + } + + // Check for listener leak + m = _getMaxListeners(target); + if (m > 0 && existing.length > m && !existing.warned) { + existing.warned = true; + // No error code for this since it is a Warning + // eslint-disable-next-line no-restricted-syntax + const w = new Error('Possible EventEmitter memory leak detected. ' + + `${existing.length} ${String(type)} listeners ` + + `added to ${inspect(target, { depth: -1 })}. Use ` + + 'emitter.setMaxListeners() to increase limit'); + w.name = 'MaxListenersExceededWarning'; + w.emitter = target; + w.type = type; + w.count = existing.length; + process.emitWarning(w); + } + } + + return target; +} + +/** + * Adds a listener to the event emitter. + * @param {string | symbol} type + * @param {Function} listener + * @returns {EventEmitter} + */ +EventEmitter.prototype.addListener = function addListener(type, listener) { + return _addListener(this, type, listener, false); +}; + +EventEmitter.prototype.on = EventEmitter.prototype.addListener; + +/** + * Adds the `listener` function to the beginning of + * the listeners array. + * @param {string | symbol} type + * @param {Function} listener + * @returns {EventEmitter} + */ +EventEmitter.prototype.prependListener = + function prependListener(type, listener) { + return _addListener(this, type, listener, true); + }; + +function onceWrapper() { + if (!this.fired) { + this.target.removeListener(this.type, this.wrapFn); + this.fired = true; + if (arguments.length === 0) + return this.listener.call(this.target); + return this.listener.apply(this.target, arguments); + } +} + +function _onceWrap(target, type, listener) { + const state = { fired: false, wrapFn: undefined, target, type, listener }; + const wrapped = onceWrapper.bind(state); + wrapped.listener = listener; + state.wrapFn = wrapped; + return wrapped; +} + +/** + * Adds a one-time `listener` function to the event emitter. + * @param {string | symbol} type + * @param {Function} listener + * @returns {EventEmitter} + */ +EventEmitter.prototype.once = function once(type, listener) { + checkListener(listener); + + this.on(type, _onceWrap(this, type, listener)); + return this; +}; + +/** + * Adds a one-time `listener` function to the beginning of + * the listeners array. + * @param {string | symbol} type + * @param {Function} listener + * @returns {EventEmitter} + */ +EventEmitter.prototype.prependOnceListener = + function prependOnceListener(type, listener) { + checkListener(listener); + + this.prependListener(type, _onceWrap(this, type, listener)); + return this; + }; + + +/** + * Removes the specified `listener` from the listeners array. + * @param {string | symbol} type + * @param {Function} listener + * @returns {EventEmitter} + */ +EventEmitter.prototype.removeListener = + function removeListener(type, listener) { + checkListener(listener); + + const events = this._events; + if (events === undefined) + return this; + + const list = events[type]; + if (list === undefined) + return this; + + if (list === listener || list.listener === listener) { + if (--this._eventsCount === 0) + this._events = ObjectCreate(null); + else { + delete events[type]; + if (events.removeListener) + this.emit('removeListener', type, list.listener || listener); + } + } else if (typeof list !== 'function') { + let position = -1; + + for (let i = list.length - 1; i >= 0; i--) { + if (list[i] === listener || list[i].listener === listener) { + position = i; + break; + } + } + + if (position < 0) + return this; + + if (position === 0) + list.shift(); + else { + spliceOne(list, position); + } + + if (list.length === 1) + events[type] = list[0]; + + if (events.removeListener !== undefined) + this.emit('removeListener', type, listener); + } + + return this; + }; + +EventEmitter.prototype.off = EventEmitter.prototype.removeListener; + +/** + * Removes all listeners from the event emitter. (Only + * removes listeners for a specific event name if specified + * as `type`). + * @param {string | symbol} [type] + * @returns {EventEmitter} + */ +EventEmitter.prototype.removeAllListeners = + function removeAllListeners(type) { + const events = this._events; + if (events === undefined) + return this; + + // Not listening for removeListener, no need to emit + if (events.removeListener === undefined) { + if (arguments.length === 0) { + this._events = ObjectCreate(null); + this._eventsCount = 0; + } else if (events[type] !== undefined) { + if (--this._eventsCount === 0) + this._events = ObjectCreate(null); + else + delete events[type]; + } + return this; + } + + // Emit removeListener for all listeners on all events + if (arguments.length === 0) { + for (const key of ReflectOwnKeys(events)) { + if (key === 'removeListener') continue; + this.removeAllListeners(key); + } + this.removeAllListeners('removeListener'); + this._events = ObjectCreate(null); + this._eventsCount = 0; + return this; + } + + const listeners = events[type]; + + if (typeof listeners === 'function') { + this.removeListener(type, listeners); + } else if (listeners !== undefined) { + // LIFO order + for (let i = listeners.length - 1; i >= 0; i--) { + this.removeListener(type, listeners[i]); + } + } + + return this; + }; + +function _listeners(target, type, unwrap) { + const events = target._events; + + if (events === undefined) + return []; + + const evlistener = events[type]; + if (evlistener === undefined) + return []; + + if (typeof evlistener === 'function') + return unwrap ? [evlistener.listener || evlistener] : [evlistener]; + + return unwrap ? + unwrapListeners(evlistener) : arrayClone(evlistener); +} + +/** + * Returns a copy of the array of listeners for the event name + * specified as `type`. + * @param {string | symbol} type + * @returns {Function[]} + */ +EventEmitter.prototype.listeners = function listeners(type) { + return _listeners(this, type, true); +}; + +/** + * Returns a copy of the array of listeners and wrappers for + * the event name specified as `type`. + * @param {string | symbol} type + * @returns {Function[]} + */ +EventEmitter.prototype.rawListeners = function rawListeners(type) { + return _listeners(this, type, false); +}; + +/** + * Returns the number of listeners listening to the event name + * specified as `type`. + * @deprecated since v3.2.0 + * @param {EventEmitter} emitter + * @param {string | symbol} type + * @returns {number} + */ +EventEmitter.listenerCount = function(emitter, type) { + if (typeof emitter.listenerCount === 'function') { + return emitter.listenerCount(type); + } + return emitter.listenerCount(type); +}; + +EventEmitter.prototype.listenerCount = listenerCount; + +/** + * Returns the number of listeners listening to event name + * specified as `type`. + * @param {string | symbol} type + * @returns {number} + */ +function listenerCount(type) { + const events = this._events; + + if (events !== undefined) { + const evlistener = events[type]; + + if (typeof evlistener === 'function') { + return 1; + } else if (evlistener !== undefined) { + return evlistener.length; + } + } + + return 0; +} + +/** + * Returns an array listing the events for which + * the emitter has registered listeners. + * @returns {any[]} + */ +EventEmitter.prototype.eventNames = function eventNames() { + return this._eventsCount > 0 ? ReflectOwnKeys(this._events) : []; +}; + +function arrayClone(arr) { + // At least since V8 8.3, this implementation is faster than the previous + // which always used a simple for-loop + switch (arr.length) { + case 2: return [arr[0], arr[1]]; + case 3: return [arr[0], arr[1], arr[2]]; + case 4: return [arr[0], arr[1], arr[2], arr[3]]; + case 5: return [arr[0], arr[1], arr[2], arr[3], arr[4]]; + case 6: return [arr[0], arr[1], arr[2], arr[3], arr[4], arr[5]]; + } + return ArrayPrototypeSlice(arr); +} + +function unwrapListeners(arr) { + const ret = arrayClone(arr); + for (let i = 0; i < ret.length; ++i) { + const orig = ret[i].listener; + if (typeof orig === 'function') + ret[i] = orig; + } + return ret; +} diff --git a/dist/index.js b/dist/index.js index 4697bdc5..187b754d 100644 --- a/dist/index.js +++ b/dist/index.js @@ -7036,7 +7036,6 @@ Object.defineProperty(exports, "__esModule", ({ value: true })); exports.getRelease = exports.Release = void 0; const crypto = __nccwpck_require__(6113); const fs = __nccwpck_require__(7147); -const https = __nccwpck_require__(5687); const openpgp = __nccwpck_require__(7946); const semver = __nccwpck_require__(2221); const yauzl = __nccwpck_require__(8781); @@ -7184,24 +7183,16 @@ class Release { } download(downloadUrl, installPath, identifier) { const headers = { 'User-Agent': identifier }; - return new Promise((resolve, reject) => { - https.request(downloadUrl, { headers: headers }, (response) => { - if (response.statusCode === 301 || response.statusCode === 302) { // redirect for CDN - const redirectUrl = response.headers.location; - return resolve(this.download(redirectUrl, installPath, identifier)); - } - if (response.statusCode !== 200) { - return reject(response.statusMessage); - } - response - .on('error', reject) - .on('end', resolve) - .pipe(fs.createWriteStream(installPath)) - .on('error', reject); - }) - .on('error', reject) - .end(); - }); + return new Promise((resolve, reject) => __awaiter(this, void 0, void 0, function* () { + try { + const result = yield (0, utils_1.request)(downloadUrl, { headers: Object.assign({}, headers), responseType: 'stream' }); + result.pipe(fs.createWriteStream(installPath)); + resolve(); + } + catch (e) { + return reject(e.message); + } + })); } verify(pkg, buildName) { return __awaiter(this, void 0, void 0, function* () { @@ -7227,15 +7218,15 @@ class Release { downloadSha256Sum(buildName) { return __awaiter(this, void 0, void 0, function* () { const [shasumsResponse, shasumsSignature] = yield Promise.all([ - utils_1.httpsRequest(`${releasesUrl}/${this.name}/${this.version}/${this.shasums}`), - utils_1.httpsRequest(`${releasesUrl}/${this.name}/${this.version}/${this.shasums_signature}`, {}, 'hex'), + (0, utils_1.request)(`${releasesUrl}/${this.name}/${this.version}/${this.shasums}`), + (0, utils_1.request)(`${releasesUrl}/${this.name}/${this.version}/${this.shasums_signature}`), ]); const publicKey = yield openpgp.readKey({ armoredKey: hashiPublicKey }); const signature = yield openpgp.readSignature({ binarySignature: Buffer.from(shasumsSignature, 'hex') }); - const message = openpgp.Message.fromText(shasumsResponse); + const message = yield openpgp.createMessage({ text: shasumsResponse }); const verified = yield openpgp.verify({ message: message, - publicKeys: publicKey, + verificationKeys: publicKey, signature: signature }); if (!verified) { @@ -7285,8 +7276,7 @@ function getRelease(product, version, userAgent, includePrerelease) { const validVersion = semver.validRange(version, { includePrerelease, loose: true }); // "latest" will return invalid but that's ok because we'll select it by default const indexUrl = `${releasesUrl}/${product}/index.json`; const headers = userAgent ? { 'User-Agent': userAgent } : null; - const body = yield utils_1.httpsRequest(indexUrl, { headers }); - const response = JSON.parse(body); + const response = yield (0, utils_1.request)(indexUrl, { headers }); let release; if (!validVersion) { // pick the latest release (prereleases will be skipped for safety, set an explicit version instead) const releaseVersions = Object.keys(response.versions).filter(v => !semver.prerelease(v)); @@ -7317,3200 +7307,15935 @@ function matchVersion(versions, range, includePrerelease) { /***/ }), /***/ 698: -/***/ ((__unused_webpack_module, exports, __nccwpck_require__) => { +/***/ (function(__unused_webpack_module, exports, __nccwpck_require__) { "use strict"; +var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) { + function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); } + return new (P || (P = Promise))(function (resolve, reject) { + function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } } + function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } } + function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); } + step((generator = generator.apply(thisArg, _arguments || [])).next()); + }); +}; Object.defineProperty(exports, "__esModule", ({ value: true })); -exports.httpsRequest = void 0; -const https = __nccwpck_require__(5687); -function httpsRequest(url, options = {}, encoding = 'utf8') { - return new Promise((resolve, reject) => { - https.request(url, options, res => { - if (res.statusCode === 301 || res.statusCode === 302) { // follow redirects - return resolve(httpsRequest(res.headers.location, options, encoding)); - } - if (res.statusCode !== 200) { - return reject(res.statusMessage); - } - let body = ''; - res.setEncoding(encoding) - .on('data', data => body += data) - .on('end', () => resolve(body)); - }) - .on('error', reject) - .end(); +exports.request = void 0; +const axios_1 = __nccwpck_require__(6545); +const ProxyAgent = __nccwpck_require__(7367); +const httpProxy = process.env["HTTP_PROXY"] || process.env["http_proxy"]; +const httpsProxy = process.env["HTTPS_PROXY"] || process.env["https_proxy"]; +let proxyConf = {}; +if (httpProxy || httpsProxy) { + proxyConf = { + proxy: false, + httpAgent: httpProxy ? new ProxyAgent(httpProxy) : undefined, + httpsAgent: httpsProxy ? new ProxyAgent(httpsProxy) : undefined, + }; +} +const axios = axios_1.default.create(Object.assign({}, proxyConf)); +function request(url, options = {}) { + return __awaiter(this, void 0, void 0, function* () { + const result = yield axios.get(url, Object.assign({}, options)); + return result.data; }); } -exports.httpsRequest = httpsRequest; +exports.request = request; //# sourceMappingURL=utils.js.map /***/ }), -/***/ 4293: -/***/ ((__unused_webpack_module, exports, __nccwpck_require__) => { +/***/ 1040: +/***/ ((module) => { "use strict"; +function noop() { } +function once(emitter, name) { + const o = once.spread(emitter, name); + const r = o.then((args) => args[0]); + r.cancel = o.cancel; + return r; +} +(function (once) { + function spread(emitter, name) { + let c = null; + const p = new Promise((resolve, reject) => { + function cancel() { + emitter.removeListener(name, onEvent); + emitter.removeListener('error', onError); + p.cancel = noop; + } + function onEvent(...args) { + cancel(); + resolve(args); + } + function onError(err) { + cancel(); + reject(err); + } + c = cancel; + emitter.on(name, onEvent); + emitter.on('error', onError); + }); + if (!c) { + throw new TypeError('Could not get `cancel()` function'); + } + p.cancel = c; + return p; + } + once.spread = spread; +})(once || (once = {})); +module.exports = once; +//# sourceMappingURL=index.js.map -const asn1 = exports; +/***/ }), -asn1.bignum = __nccwpck_require__(6641); +/***/ 390: +/***/ (function(__unused_webpack_module, exports) { -asn1.define = (__nccwpck_require__(5245).define); -asn1.base = __nccwpck_require__(8096); -asn1.constants = __nccwpck_require__(3371); -asn1.decoders = __nccwpck_require__(4952); -asn1.encoders = __nccwpck_require__(9083); +(function (global, factory) { + true ? factory(exports) : + 0; +})(this, (function (exports) { 'use strict'; + // Reserved word lists for various dialects of the language -/***/ }), + var reservedWords = { + 3: "abstract boolean byte char class double enum export extends final float goto implements import int interface long native package private protected public short static super synchronized throws transient volatile", + 5: "class enum extends super const export import", + 6: "enum", + strict: "implements interface let package private protected public static yield", + strictBind: "eval arguments" + }; -/***/ 5245: -/***/ ((__unused_webpack_module, exports, __nccwpck_require__) => { + // And the keywords -"use strict"; + var ecma5AndLessKeywords = "break case catch continue debugger default do else finally for function if return switch throw try var while with null true false instanceof typeof void delete new in this"; + var keywords$1 = { + 5: ecma5AndLessKeywords, + "5module": ecma5AndLessKeywords + " export import", + 6: ecma5AndLessKeywords + " const class extends export import super" + }; -const encoders = __nccwpck_require__(9083); -const decoders = __nccwpck_require__(4952); -const inherits = __nccwpck_require__(4124); + var keywordRelationalOperator = /^in(stanceof)?$/; + + // ## Character categories + + // Big ugly regular expressions that match characters in the + // whitespace, identifier, and identifier-start categories. These + // are only applied when a character is found to actually have a + // code point above 128. + // Generated by `bin/generate-identifier-regex.js`. + var nonASCIIidentifierStartChars = "\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\u02c1\u02c6-\u02d1\u02e0-\u02e4\u02ec\u02ee\u0370-\u0374\u0376\u0377\u037a-\u037d\u037f\u0386\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03f5\u03f7-\u0481\u048a-\u052f\u0531-\u0556\u0559\u0560-\u0588\u05d0-\u05ea\u05ef-\u05f2\u0620-\u064a\u066e\u066f\u0671-\u06d3\u06d5\u06e5\u06e6\u06ee\u06ef\u06fa-\u06fc\u06ff\u0710\u0712-\u072f\u074d-\u07a5\u07b1\u07ca-\u07ea\u07f4\u07f5\u07fa\u0800-\u0815\u081a\u0824\u0828\u0840-\u0858\u0860-\u086a\u0870-\u0887\u0889-\u088e\u08a0-\u08c9\u0904-\u0939\u093d\u0950\u0958-\u0961\u0971-\u0980\u0985-\u098c\u098f\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2\u09b6-\u09b9\u09bd\u09ce\u09dc\u09dd\u09df-\u09e1\u09f0\u09f1\u09fc\u0a05-\u0a0a\u0a0f\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32\u0a33\u0a35\u0a36\u0a38\u0a39\u0a59-\u0a5c\u0a5e\u0a72-\u0a74\u0a85-\u0a8d\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2\u0ab3\u0ab5-\u0ab9\u0abd\u0ad0\u0ae0\u0ae1\u0af9\u0b05-\u0b0c\u0b0f\u0b10\u0b13-\u0b28\u0b2a-\u0b30\u0b32\u0b33\u0b35-\u0b39\u0b3d\u0b5c\u0b5d\u0b5f-\u0b61\u0b71\u0b83\u0b85-\u0b8a\u0b8e-\u0b90\u0b92-\u0b95\u0b99\u0b9a\u0b9c\u0b9e\u0b9f\u0ba3\u0ba4\u0ba8-\u0baa\u0bae-\u0bb9\u0bd0\u0c05-\u0c0c\u0c0e-\u0c10\u0c12-\u0c28\u0c2a-\u0c39\u0c3d\u0c58-\u0c5a\u0c5d\u0c60\u0c61\u0c80\u0c85-\u0c8c\u0c8e-\u0c90\u0c92-\u0ca8\u0caa-\u0cb3\u0cb5-\u0cb9\u0cbd\u0cdd\u0cde\u0ce0\u0ce1\u0cf1\u0cf2\u0d04-\u0d0c\u0d0e-\u0d10\u0d12-\u0d3a\u0d3d\u0d4e\u0d54-\u0d56\u0d5f-\u0d61\u0d7a-\u0d7f\u0d85-\u0d96\u0d9a-\u0db1\u0db3-\u0dbb\u0dbd\u0dc0-\u0dc6\u0e01-\u0e30\u0e32\u0e33\u0e40-\u0e46\u0e81\u0e82\u0e84\u0e86-\u0e8a\u0e8c-\u0ea3\u0ea5\u0ea7-\u0eb0\u0eb2\u0eb3\u0ebd\u0ec0-\u0ec4\u0ec6\u0edc-\u0edf\u0f00\u0f40-\u0f47\u0f49-\u0f6c\u0f88-\u0f8c\u1000-\u102a\u103f\u1050-\u1055\u105a-\u105d\u1061\u1065\u1066\u106e-\u1070\u1075-\u1081\u108e\u10a0-\u10c5\u10c7\u10cd\u10d0-\u10fa\u10fc-\u1248\u124a-\u124d\u1250-\u1256\u1258\u125a-\u125d\u1260-\u1288\u128a-\u128d\u1290-\u12b0\u12b2-\u12b5\u12b8-\u12be\u12c0\u12c2-\u12c5\u12c8-\u12d6\u12d8-\u1310\u1312-\u1315\u1318-\u135a\u1380-\u138f\u13a0-\u13f5\u13f8-\u13fd\u1401-\u166c\u166f-\u167f\u1681-\u169a\u16a0-\u16ea\u16ee-\u16f8\u1700-\u1711\u171f-\u1731\u1740-\u1751\u1760-\u176c\u176e-\u1770\u1780-\u17b3\u17d7\u17dc\u1820-\u1878\u1880-\u18a8\u18aa\u18b0-\u18f5\u1900-\u191e\u1950-\u196d\u1970-\u1974\u1980-\u19ab\u19b0-\u19c9\u1a00-\u1a16\u1a20-\u1a54\u1aa7\u1b05-\u1b33\u1b45-\u1b4c\u1b83-\u1ba0\u1bae\u1baf\u1bba-\u1be5\u1c00-\u1c23\u1c4d-\u1c4f\u1c5a-\u1c7d\u1c80-\u1c88\u1c90-\u1cba\u1cbd-\u1cbf\u1ce9-\u1cec\u1cee-\u1cf3\u1cf5\u1cf6\u1cfa\u1d00-\u1dbf\u1e00-\u1f15\u1f18-\u1f1d\u1f20-\u1f45\u1f48-\u1f4d\u1f50-\u1f57\u1f59\u1f5b\u1f5d\u1f5f-\u1f7d\u1f80-\u1fb4\u1fb6-\u1fbc\u1fbe\u1fc2-\u1fc4\u1fc6-\u1fcc\u1fd0-\u1fd3\u1fd6-\u1fdb\u1fe0-\u1fec\u1ff2-\u1ff4\u1ff6-\u1ffc\u2071\u207f\u2090-\u209c\u2102\u2107\u210a-\u2113\u2115\u2118-\u211d\u2124\u2126\u2128\u212a-\u2139\u213c-\u213f\u2145-\u2149\u214e\u2160-\u2188\u2c00-\u2ce4\u2ceb-\u2cee\u2cf2\u2cf3\u2d00-\u2d25\u2d27\u2d2d\u2d30-\u2d67\u2d6f\u2d80-\u2d96\u2da0-\u2da6\u2da8-\u2dae\u2db0-\u2db6\u2db8-\u2dbe\u2dc0-\u2dc6\u2dc8-\u2dce\u2dd0-\u2dd6\u2dd8-\u2dde\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303c\u3041-\u3096\u309b-\u309f\u30a1-\u30fa\u30fc-\u30ff\u3105-\u312f\u3131-\u318e\u31a0-\u31bf\u31f0-\u31ff\u3400-\u4dbf\u4e00-\ua48c\ua4d0-\ua4fd\ua500-\ua60c\ua610-\ua61f\ua62a\ua62b\ua640-\ua66e\ua67f-\ua69d\ua6a0-\ua6ef\ua717-\ua71f\ua722-\ua788\ua78b-\ua7ca\ua7d0\ua7d1\ua7d3\ua7d5-\ua7d9\ua7f2-\ua801\ua803-\ua805\ua807-\ua80a\ua80c-\ua822\ua840-\ua873\ua882-\ua8b3\ua8f2-\ua8f7\ua8fb\ua8fd\ua8fe\ua90a-\ua925\ua930-\ua946\ua960-\ua97c\ua984-\ua9b2\ua9cf\ua9e0-\ua9e4\ua9e6-\ua9ef\ua9fa-\ua9fe\uaa00-\uaa28\uaa40-\uaa42\uaa44-\uaa4b\uaa60-\uaa76\uaa7a\uaa7e-\uaaaf\uaab1\uaab5\uaab6\uaab9-\uaabd\uaac0\uaac2\uaadb-\uaadd\uaae0-\uaaea\uaaf2-\uaaf4\uab01-\uab06\uab09-\uab0e\uab11-\uab16\uab20-\uab26\uab28-\uab2e\uab30-\uab5a\uab5c-\uab69\uab70-\uabe2\uac00-\ud7a3\ud7b0-\ud7c6\ud7cb-\ud7fb\uf900-\ufa6d\ufa70-\ufad9\ufb00-\ufb06\ufb13-\ufb17\ufb1d\ufb1f-\ufb28\ufb2a-\ufb36\ufb38-\ufb3c\ufb3e\ufb40\ufb41\ufb43\ufb44\ufb46-\ufbb1\ufbd3-\ufd3d\ufd50-\ufd8f\ufd92-\ufdc7\ufdf0-\ufdfb\ufe70-\ufe74\ufe76-\ufefc\uff21-\uff3a\uff41-\uff5a\uff66-\uffbe\uffc2-\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc"; + var nonASCIIidentifierChars = "\u200c\u200d\xb7\u0300-\u036f\u0387\u0483-\u0487\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u0669\u0670\u06d6-\u06dc\u06df-\u06e4\u06e7\u06e8\u06ea-\u06ed\u06f0-\u06f9\u0711\u0730-\u074a\u07a6-\u07b0\u07c0-\u07c9\u07eb-\u07f3\u07fd\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0859-\u085b\u0898-\u089f\u08ca-\u08e1\u08e3-\u0903\u093a-\u093c\u093e-\u094f\u0951-\u0957\u0962\u0963\u0966-\u096f\u0981-\u0983\u09bc\u09be-\u09c4\u09c7\u09c8\u09cb-\u09cd\u09d7\u09e2\u09e3\u09e6-\u09ef\u09fe\u0a01-\u0a03\u0a3c\u0a3e-\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a66-\u0a71\u0a75\u0a81-\u0a83\u0abc\u0abe-\u0ac5\u0ac7-\u0ac9\u0acb-\u0acd\u0ae2\u0ae3\u0ae6-\u0aef\u0afa-\u0aff\u0b01-\u0b03\u0b3c\u0b3e-\u0b44\u0b47\u0b48\u0b4b-\u0b4d\u0b55-\u0b57\u0b62\u0b63\u0b66-\u0b6f\u0b82\u0bbe-\u0bc2\u0bc6-\u0bc8\u0bca-\u0bcd\u0bd7\u0be6-\u0bef\u0c00-\u0c04\u0c3c\u0c3e-\u0c44\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0c66-\u0c6f\u0c81-\u0c83\u0cbc\u0cbe-\u0cc4\u0cc6-\u0cc8\u0cca-\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0ce6-\u0cef\u0d00-\u0d03\u0d3b\u0d3c\u0d3e-\u0d44\u0d46-\u0d48\u0d4a-\u0d4d\u0d57\u0d62\u0d63\u0d66-\u0d6f\u0d81-\u0d83\u0dca\u0dcf-\u0dd4\u0dd6\u0dd8-\u0ddf\u0de6-\u0def\u0df2\u0df3\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0e50-\u0e59\u0eb1\u0eb4-\u0ebc\u0ec8-\u0ecd\u0ed0-\u0ed9\u0f18\u0f19\u0f20-\u0f29\u0f35\u0f37\u0f39\u0f3e\u0f3f\u0f71-\u0f84\u0f86\u0f87\u0f8d-\u0f97\u0f99-\u0fbc\u0fc6\u102b-\u103e\u1040-\u1049\u1056-\u1059\u105e-\u1060\u1062-\u1064\u1067-\u106d\u1071-\u1074\u1082-\u108d\u108f-\u109d\u135d-\u135f\u1369-\u1371\u1712-\u1715\u1732-\u1734\u1752\u1753\u1772\u1773\u17b4-\u17d3\u17dd\u17e0-\u17e9\u180b-\u180d\u180f-\u1819\u18a9\u1920-\u192b\u1930-\u193b\u1946-\u194f\u19d0-\u19da\u1a17-\u1a1b\u1a55-\u1a5e\u1a60-\u1a7c\u1a7f-\u1a89\u1a90-\u1a99\u1ab0-\u1abd\u1abf-\u1ace\u1b00-\u1b04\u1b34-\u1b44\u1b50-\u1b59\u1b6b-\u1b73\u1b80-\u1b82\u1ba1-\u1bad\u1bb0-\u1bb9\u1be6-\u1bf3\u1c24-\u1c37\u1c40-\u1c49\u1c50-\u1c59\u1cd0-\u1cd2\u1cd4-\u1ce8\u1ced\u1cf4\u1cf7-\u1cf9\u1dc0-\u1dff\u203f\u2040\u2054\u20d0-\u20dc\u20e1\u20e5-\u20f0\u2cef-\u2cf1\u2d7f\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua620-\ua629\ua66f\ua674-\ua67d\ua69e\ua69f\ua6f0\ua6f1\ua802\ua806\ua80b\ua823-\ua827\ua82c\ua880\ua881\ua8b4-\ua8c5\ua8d0-\ua8d9\ua8e0-\ua8f1\ua8ff-\ua909\ua926-\ua92d\ua947-\ua953\ua980-\ua983\ua9b3-\ua9c0\ua9d0-\ua9d9\ua9e5\ua9f0-\ua9f9\uaa29-\uaa36\uaa43\uaa4c\uaa4d\uaa50-\uaa59\uaa7b-\uaa7d\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uaaeb-\uaaef\uaaf5\uaaf6\uabe3-\uabea\uabec\uabed\uabf0-\uabf9\ufb1e\ufe00-\ufe0f\ufe20-\ufe2f\ufe33\ufe34\ufe4d-\ufe4f\uff10-\uff19\uff3f"; + + var nonASCIIidentifierStart = new RegExp("[" + nonASCIIidentifierStartChars + "]"); + var nonASCIIidentifier = new RegExp("[" + nonASCIIidentifierStartChars + nonASCIIidentifierChars + "]"); + + nonASCIIidentifierStartChars = nonASCIIidentifierChars = null; + + // These are a run-length and offset encoded representation of the + // >0xffff code points that are a valid part of identifiers. The + // offset starts at 0x10000, and each pair of numbers represents an + // offset to the next range, and then a size of the range. They were + // generated by bin/generate-identifier-regex.js + + // eslint-disable-next-line comma-spacing + var astralIdentifierStartCodes = [0,11,2,25,2,18,2,1,2,14,3,13,35,122,70,52,268,28,4,48,48,31,14,29,6,37,11,29,3,35,5,7,2,4,43,157,19,35,5,35,5,39,9,51,13,10,2,14,2,6,2,1,2,10,2,14,2,6,2,1,68,310,10,21,11,7,25,5,2,41,2,8,70,5,3,0,2,43,2,1,4,0,3,22,11,22,10,30,66,18,2,1,11,21,11,25,71,55,7,1,65,0,16,3,2,2,2,28,43,28,4,28,36,7,2,27,28,53,11,21,11,18,14,17,111,72,56,50,14,50,14,35,349,41,7,1,79,28,11,0,9,21,43,17,47,20,28,22,13,52,58,1,3,0,14,44,33,24,27,35,30,0,3,0,9,34,4,0,13,47,15,3,22,0,2,0,36,17,2,24,85,6,2,0,2,3,2,14,2,9,8,46,39,7,3,1,3,21,2,6,2,1,2,4,4,0,19,0,13,4,159,52,19,3,21,2,31,47,21,1,2,0,185,46,42,3,37,47,21,0,60,42,14,0,72,26,38,6,186,43,117,63,32,7,3,0,3,7,2,1,2,23,16,0,2,0,95,7,3,38,17,0,2,0,29,0,11,39,8,0,22,0,12,45,20,0,19,72,264,8,2,36,18,0,50,29,113,6,2,1,2,37,22,0,26,5,2,1,2,31,15,0,328,18,190,0,80,921,103,110,18,195,2637,96,16,1070,4050,582,8634,568,8,30,18,78,18,29,19,47,17,3,32,20,6,18,689,63,129,74,6,0,67,12,65,1,2,0,29,6135,9,1237,43,8,8936,3,2,6,2,1,2,290,46,2,18,3,9,395,2309,106,6,12,4,8,8,9,5991,84,2,70,2,1,3,0,3,1,3,3,2,11,2,0,2,6,2,64,2,3,3,7,2,6,2,27,2,3,2,4,2,0,4,6,2,339,3,24,2,24,2,30,2,24,2,30,2,24,2,30,2,24,2,30,2,24,2,7,1845,30,482,44,11,6,17,0,322,29,19,43,1269,6,2,3,2,1,2,14,2,196,60,67,8,0,1205,3,2,26,2,1,2,0,3,0,2,9,2,3,2,0,2,0,7,0,5,0,2,0,2,0,2,2,2,1,2,0,3,0,2,0,2,0,2,0,2,0,2,1,2,0,3,3,2,6,2,3,2,3,2,0,2,9,2,16,6,2,2,4,2,16,4421,42719,33,4152,8,221,3,5761,15,7472,3104,541,1507,4938]; + + // eslint-disable-next-line comma-spacing + var astralIdentifierCodes = [509,0,227,0,150,4,294,9,1368,2,2,1,6,3,41,2,5,0,166,1,574,3,9,9,370,1,154,10,50,3,123,2,54,14,32,10,3,1,11,3,46,10,8,0,46,9,7,2,37,13,2,9,6,1,45,0,13,2,49,13,9,3,2,11,83,11,7,0,161,11,6,9,7,3,56,1,2,6,3,1,3,2,10,0,11,1,3,6,4,4,193,17,10,9,5,0,82,19,13,9,214,6,3,8,28,1,83,16,16,9,82,12,9,9,84,14,5,9,243,14,166,9,71,5,2,1,3,3,2,0,2,1,13,9,120,6,3,6,4,0,29,9,41,6,2,3,9,0,10,10,47,15,406,7,2,7,17,9,57,21,2,13,123,5,4,0,2,1,2,6,2,0,9,9,49,4,2,1,2,4,9,9,330,3,19306,9,87,9,39,4,60,6,26,9,1014,0,2,54,8,3,82,0,12,1,19628,1,4706,45,3,22,543,4,4,5,9,7,3,6,31,3,149,2,1418,49,513,54,5,49,9,0,15,0,23,4,2,14,1361,6,2,16,3,6,2,1,2,4,262,6,10,9,357,0,62,13,1495,6,110,6,6,9,4759,9,787719,239]; + + // This has a complexity linear to the value of the code. The + // assumption is that looking up astral identifier characters is + // rare. + function isInAstralSet(code, set) { + var pos = 0x10000; + for (var i = 0; i < set.length; i += 2) { + pos += set[i]; + if (pos > code) { return false } + pos += set[i + 1]; + if (pos >= code) { return true } + } + } -const api = exports; + // Test whether a given character code starts an identifier. -api.define = function define(name, body) { - return new Entity(name, body); -}; + function isIdentifierStart(code, astral) { + if (code < 65) { return code === 36 } + if (code < 91) { return true } + if (code < 97) { return code === 95 } + if (code < 123) { return true } + if (code <= 0xffff) { return code >= 0xaa && nonASCIIidentifierStart.test(String.fromCharCode(code)) } + if (astral === false) { return false } + return isInAstralSet(code, astralIdentifierStartCodes) + } -function Entity(name, body) { - this.name = name; - this.body = body; + // Test whether a given character is part of an identifier. + + function isIdentifierChar(code, astral) { + if (code < 48) { return code === 36 } + if (code < 58) { return true } + if (code < 65) { return false } + if (code < 91) { return true } + if (code < 97) { return code === 95 } + if (code < 123) { return true } + if (code <= 0xffff) { return code >= 0xaa && nonASCIIidentifier.test(String.fromCharCode(code)) } + if (astral === false) { return false } + return isInAstralSet(code, astralIdentifierStartCodes) || isInAstralSet(code, astralIdentifierCodes) + } - this.decoders = {}; - this.encoders = {}; -} + // ## Token types -Entity.prototype._createNamed = function createNamed(Base) { - const name = this.name; + // The assignment of fine-grained, information-carrying type objects + // allows the tokenizer to store the information it has about a + // token in a way that is very cheap for the parser to look up. - function Generated(entity) { - this._initNamed(entity, name); - } - inherits(Generated, Base); - Generated.prototype._initNamed = function _initNamed(entity, name) { - Base.call(this, entity, name); - }; + // All token type variables start with an underscore, to make them + // easy to recognize. - return new Generated(this); -}; + // The `beforeExpr` property is used to disambiguate between regular + // expressions and divisions. It is set on all token types that can + // be followed by an expression (thus, a slash after them would be a + // regular expression). + // + // The `startsExpr` property is used to check if the token ends a + // `yield` expression. It is set on all token types that either can + // directly start an expression (like a quotation mark) or can + // continue an expression (like the body of a string). + // + // `isLoop` marks a keyword as starting a loop, which is important + // to know when parsing a label, in order to allow or disallow + // continue jumps to that label. + + var TokenType = function TokenType(label, conf) { + if ( conf === void 0 ) conf = {}; + + this.label = label; + this.keyword = conf.keyword; + this.beforeExpr = !!conf.beforeExpr; + this.startsExpr = !!conf.startsExpr; + this.isLoop = !!conf.isLoop; + this.isAssign = !!conf.isAssign; + this.prefix = !!conf.prefix; + this.postfix = !!conf.postfix; + this.binop = conf.binop || null; + this.updateContext = null; + }; -Entity.prototype._getDecoder = function _getDecoder(enc) { - enc = enc || 'der'; - // Lazily create decoder - if (!this.decoders.hasOwnProperty(enc)) - this.decoders[enc] = this._createNamed(decoders[enc]); - return this.decoders[enc]; -}; + function binop(name, prec) { + return new TokenType(name, {beforeExpr: true, binop: prec}) + } + var beforeExpr = {beforeExpr: true}, startsExpr = {startsExpr: true}; -Entity.prototype.decode = function decode(data, enc, options) { - return this._getDecoder(enc).decode(data, options); -}; + // Map keyword names to token types. -Entity.prototype._getEncoder = function _getEncoder(enc) { - enc = enc || 'der'; - // Lazily create encoder - if (!this.encoders.hasOwnProperty(enc)) - this.encoders[enc] = this._createNamed(encoders[enc]); - return this.encoders[enc]; -}; + var keywords = {}; -Entity.prototype.encode = function encode(data, enc, /* internal */ reporter) { - return this._getEncoder(enc).encode(data, reporter); -}; + // Succinct definitions of keyword token types + function kw(name, options) { + if ( options === void 0 ) options = {}; + options.keyword = name; + return keywords[name] = new TokenType(name, options) + } -/***/ }), + var types$1 = { + num: new TokenType("num", startsExpr), + regexp: new TokenType("regexp", startsExpr), + string: new TokenType("string", startsExpr), + name: new TokenType("name", startsExpr), + privateId: new TokenType("privateId", startsExpr), + eof: new TokenType("eof"), + + // Punctuation token types. + bracketL: new TokenType("[", {beforeExpr: true, startsExpr: true}), + bracketR: new TokenType("]"), + braceL: new TokenType("{", {beforeExpr: true, startsExpr: true}), + braceR: new TokenType("}"), + parenL: new TokenType("(", {beforeExpr: true, startsExpr: true}), + parenR: new TokenType(")"), + comma: new TokenType(",", beforeExpr), + semi: new TokenType(";", beforeExpr), + colon: new TokenType(":", beforeExpr), + dot: new TokenType("."), + question: new TokenType("?", beforeExpr), + questionDot: new TokenType("?."), + arrow: new TokenType("=>", beforeExpr), + template: new TokenType("template"), + invalidTemplate: new TokenType("invalidTemplate"), + ellipsis: new TokenType("...", beforeExpr), + backQuote: new TokenType("`", startsExpr), + dollarBraceL: new TokenType("${", {beforeExpr: true, startsExpr: true}), + + // Operators. These carry several kinds of properties to help the + // parser use them properly (the presence of these properties is + // what categorizes them as operators). + // + // `binop`, when present, specifies that this operator is a binary + // operator, and will refer to its precedence. + // + // `prefix` and `postfix` mark the operator as a prefix or postfix + // unary operator. + // + // `isAssign` marks all of `=`, `+=`, `-=` etcetera, which act as + // binary operators with a very low precedence, that should result + // in AssignmentExpression nodes. + + eq: new TokenType("=", {beforeExpr: true, isAssign: true}), + assign: new TokenType("_=", {beforeExpr: true, isAssign: true}), + incDec: new TokenType("++/--", {prefix: true, postfix: true, startsExpr: true}), + prefix: new TokenType("!/~", {beforeExpr: true, prefix: true, startsExpr: true}), + logicalOR: binop("||", 1), + logicalAND: binop("&&", 2), + bitwiseOR: binop("|", 3), + bitwiseXOR: binop("^", 4), + bitwiseAND: binop("&", 5), + equality: binop("==/!=/===/!==", 6), + relational: binop("/<=/>=", 7), + bitShift: binop("<>/>>>", 8), + plusMin: new TokenType("+/-", {beforeExpr: true, binop: 9, prefix: true, startsExpr: true}), + modulo: binop("%", 10), + star: binop("*", 10), + slash: binop("/", 10), + starstar: new TokenType("**", {beforeExpr: true}), + coalesce: binop("??", 1), + + // Keyword token types. + _break: kw("break"), + _case: kw("case", beforeExpr), + _catch: kw("catch"), + _continue: kw("continue"), + _debugger: kw("debugger"), + _default: kw("default", beforeExpr), + _do: kw("do", {isLoop: true, beforeExpr: true}), + _else: kw("else", beforeExpr), + _finally: kw("finally"), + _for: kw("for", {isLoop: true}), + _function: kw("function", startsExpr), + _if: kw("if"), + _return: kw("return", beforeExpr), + _switch: kw("switch"), + _throw: kw("throw", beforeExpr), + _try: kw("try"), + _var: kw("var"), + _const: kw("const"), + _while: kw("while", {isLoop: true}), + _with: kw("with"), + _new: kw("new", {beforeExpr: true, startsExpr: true}), + _this: kw("this", startsExpr), + _super: kw("super", startsExpr), + _class: kw("class", startsExpr), + _extends: kw("extends", beforeExpr), + _export: kw("export"), + _import: kw("import", startsExpr), + _null: kw("null", startsExpr), + _true: kw("true", startsExpr), + _false: kw("false", startsExpr), + _in: kw("in", {beforeExpr: true, binop: 7}), + _instanceof: kw("instanceof", {beforeExpr: true, binop: 7}), + _typeof: kw("typeof", {beforeExpr: true, prefix: true, startsExpr: true}), + _void: kw("void", {beforeExpr: true, prefix: true, startsExpr: true}), + _delete: kw("delete", {beforeExpr: true, prefix: true, startsExpr: true}) + }; -/***/ 5298: -/***/ ((__unused_webpack_module, exports, __nccwpck_require__) => { + // Matches a whole line break (where CRLF is considered a single + // line break). Used to count lines. -"use strict"; + var lineBreak = /\r\n?|\n|\u2028|\u2029/; + var lineBreakG = new RegExp(lineBreak.source, "g"); + function isNewLine(code) { + return code === 10 || code === 13 || code === 0x2028 || code === 0x2029 + } -const inherits = __nccwpck_require__(4124); -const Reporter = (__nccwpck_require__(3744)/* .Reporter */ .b); -const Buffer = (__nccwpck_require__(5118).Buffer); + function nextLineBreak(code, from, end) { + if ( end === void 0 ) end = code.length; -function DecoderBuffer(base, options) { - Reporter.call(this, options); - if (!Buffer.isBuffer(base)) { - this.error('Input not Buffer'); - return; + for (var i = from; i < end; i++) { + var next = code.charCodeAt(i); + if (isNewLine(next)) + { return i < end - 1 && next === 13 && code.charCodeAt(i + 1) === 10 ? i + 2 : i + 1 } + } + return -1 } - this.base = base; - this.offset = 0; - this.length = base.length; -} -inherits(DecoderBuffer, Reporter); -exports.C = DecoderBuffer; + var nonASCIIwhitespace = /[\u1680\u2000-\u200a\u202f\u205f\u3000\ufeff]/; -DecoderBuffer.isDecoderBuffer = function isDecoderBuffer(data) { - if (data instanceof DecoderBuffer) { - return true; + var skipWhiteSpace = /(?:\s|\/\/.*|\/\*[^]*?\*\/)*/g; + + var ref = Object.prototype; + var hasOwnProperty = ref.hasOwnProperty; + var toString = ref.toString; + + var hasOwn = Object.hasOwn || (function (obj, propName) { return ( + hasOwnProperty.call(obj, propName) + ); }); + + var isArray = Array.isArray || (function (obj) { return ( + toString.call(obj) === "[object Array]" + ); }); + + function wordsRegexp(words) { + return new RegExp("^(?:" + words.replace(/ /g, "|") + ")$") } - // Or accept compatible API - const isCompatible = typeof data === 'object' && - Buffer.isBuffer(data.base) && - data.constructor.name === 'DecoderBuffer' && - typeof data.offset === 'number' && - typeof data.length === 'number' && - typeof data.save === 'function' && - typeof data.restore === 'function' && - typeof data.isEmpty === 'function' && - typeof data.readUInt8 === 'function' && - typeof data.skip === 'function' && - typeof data.raw === 'function'; + var loneSurrogate = /(?:[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF])/; - return isCompatible; -}; + // These are used when `options.locations` is on, for the + // `startLoc` and `endLoc` properties. -DecoderBuffer.prototype.save = function save() { - return { offset: this.offset, reporter: Reporter.prototype.save.call(this) }; -}; + var Position = function Position(line, col) { + this.line = line; + this.column = col; + }; -DecoderBuffer.prototype.restore = function restore(save) { - // Return skipped data - const res = new DecoderBuffer(this.base); - res.offset = save.offset; - res.length = this.offset; + Position.prototype.offset = function offset (n) { + return new Position(this.line, this.column + n) + }; - this.offset = save.offset; - Reporter.prototype.restore.call(this, save.reporter); + var SourceLocation = function SourceLocation(p, start, end) { + this.start = start; + this.end = end; + if (p.sourceFile !== null) { this.source = p.sourceFile; } + }; - return res; -}; + // The `getLineInfo` function is mostly useful when the + // `locations` option is off (for performance reasons) and you + // want to find the line/column position for a given character + // offset. `input` should be the code string that the offset refers + // into. + + function getLineInfo(input, offset) { + for (var line = 1, cur = 0;;) { + var nextBreak = nextLineBreak(input, cur, offset); + if (nextBreak < 0) { return new Position(line, offset - cur) } + ++line; + cur = nextBreak; + } + } -DecoderBuffer.prototype.isEmpty = function isEmpty() { - return this.offset === this.length; -}; + // A second argument must be given to configure the parser process. + // These options are recognized (only `ecmaVersion` is required): + + var defaultOptions = { + // `ecmaVersion` indicates the ECMAScript version to parse. Must be + // either 3, 5, 6 (or 2015), 7 (2016), 8 (2017), 9 (2018), 10 + // (2019), 11 (2020), 12 (2021), 13 (2022), or `"latest"` (the + // latest version the library supports). This influences support + // for strict mode, the set of reserved words, and support for + // new syntax features. + ecmaVersion: null, + // `sourceType` indicates the mode the code should be parsed in. + // Can be either `"script"` or `"module"`. This influences global + // strict mode and parsing of `import` and `export` declarations. + sourceType: "script", + // `onInsertedSemicolon` can be a callback that will be called + // when a semicolon is automatically inserted. It will be passed + // the position of the comma as an offset, and if `locations` is + // enabled, it is given the location as a `{line, column}` object + // as second argument. + onInsertedSemicolon: null, + // `onTrailingComma` is similar to `onInsertedSemicolon`, but for + // trailing commas. + onTrailingComma: null, + // By default, reserved words are only enforced if ecmaVersion >= 5. + // Set `allowReserved` to a boolean value to explicitly turn this on + // an off. When this option has the value "never", reserved words + // and keywords can also not be used as property names. + allowReserved: null, + // When enabled, a return at the top level is not considered an + // error. + allowReturnOutsideFunction: false, + // When enabled, import/export statements are not constrained to + // appearing at the top of the program, and an import.meta expression + // in a script isn't considered an error. + allowImportExportEverywhere: false, + // By default, await identifiers are allowed to appear at the top-level scope only if ecmaVersion >= 2022. + // When enabled, await identifiers are allowed to appear at the top-level scope, + // but they are still not allowed in non-async functions. + allowAwaitOutsideFunction: null, + // When enabled, super identifiers are not constrained to + // appearing in methods and do not raise an error when they appear elsewhere. + allowSuperOutsideMethod: null, + // When enabled, hashbang directive in the beginning of file + // is allowed and treated as a line comment. + allowHashBang: false, + // When `locations` is on, `loc` properties holding objects with + // `start` and `end` properties in `{line, column}` form (with + // line being 1-based and column 0-based) will be attached to the + // nodes. + locations: false, + // A function can be passed as `onToken` option, which will + // cause Acorn to call that function with object in the same + // format as tokens returned from `tokenizer().getToken()`. Note + // that you are not allowed to call the parser from the + // callback—that will corrupt its internal state. + onToken: null, + // A function can be passed as `onComment` option, which will + // cause Acorn to call that function with `(block, text, start, + // end)` parameters whenever a comment is skipped. `block` is a + // boolean indicating whether this is a block (`/* */`) comment, + // `text` is the content of the comment, and `start` and `end` are + // character offsets that denote the start and end of the comment. + // When the `locations` option is on, two more parameters are + // passed, the full `{line, column}` locations of the start and + // end of the comments. Note that you are not allowed to call the + // parser from the callback—that will corrupt its internal state. + onComment: null, + // Nodes have their start and end characters offsets recorded in + // `start` and `end` properties (directly on the node, rather than + // the `loc` object, which holds line/column data. To also add a + // [semi-standardized][range] `range` property holding a `[start, + // end]` array with the same numbers, set the `ranges` option to + // `true`. + // + // [range]: https://bugzilla.mozilla.org/show_bug.cgi?id=745678 + ranges: false, + // It is possible to parse multiple files into a single AST by + // passing the tree produced by parsing the first file as + // `program` option in subsequent parses. This will add the + // toplevel forms of the parsed file to the `Program` (top) node + // of an existing parse tree. + program: null, + // When `locations` is on, you can pass this to record the source + // file in every node's `loc` object. + sourceFile: null, + // This value, if given, is stored in every node, whether + // `locations` is on or off. + directSourceFile: null, + // When enabled, parenthesized expressions are represented by + // (non-standard) ParenthesizedExpression nodes + preserveParens: false + }; -DecoderBuffer.prototype.readUInt8 = function readUInt8(fail) { - if (this.offset + 1 <= this.length) - return this.base.readUInt8(this.offset++, true); - else - return this.error(fail || 'DecoderBuffer overrun'); -}; + // Interpret and default an options object -DecoderBuffer.prototype.skip = function skip(bytes, fail) { - if (!(this.offset + bytes <= this.length)) - return this.error(fail || 'DecoderBuffer overrun'); + var warnedAboutEcmaVersion = false; - const res = new DecoderBuffer(this.base); + function getOptions(opts) { + var options = {}; - // Share reporter state - res._reporterState = this._reporterState; + for (var opt in defaultOptions) + { options[opt] = opts && hasOwn(opts, opt) ? opts[opt] : defaultOptions[opt]; } - res.offset = this.offset; - res.length = this.offset + bytes; - this.offset += bytes; - return res; -}; + if (options.ecmaVersion === "latest") { + options.ecmaVersion = 1e8; + } else if (options.ecmaVersion == null) { + if (!warnedAboutEcmaVersion && typeof console === "object" && console.warn) { + warnedAboutEcmaVersion = true; + console.warn("Since Acorn 8.0.0, options.ecmaVersion is required.\nDefaulting to 2020, but this will stop working in the future."); + } + options.ecmaVersion = 11; + } else if (options.ecmaVersion >= 2015) { + options.ecmaVersion -= 2009; + } -DecoderBuffer.prototype.raw = function raw(save) { - return this.base.slice(save ? save.offset : this.offset, this.length); -}; + if (options.allowReserved == null) + { options.allowReserved = options.ecmaVersion < 5; } -function EncoderBuffer(value, reporter) { - if (Array.isArray(value)) { - this.length = 0; - this.value = value.map(function(item) { - if (!EncoderBuffer.isEncoderBuffer(item)) - item = new EncoderBuffer(item, reporter); - this.length += item.length; - return item; - }, this); - } else if (typeof value === 'number') { - if (!(0 <= value && value <= 0xff)) - return reporter.error('non-byte EncoderBuffer value'); - this.value = value; - this.length = 1; - } else if (typeof value === 'string') { - this.value = value; - this.length = Buffer.byteLength(value); - } else if (Buffer.isBuffer(value)) { - this.value = value; - this.length = value.length; - } else { - return reporter.error('Unsupported type: ' + typeof value); + if (isArray(options.onToken)) { + var tokens = options.onToken; + options.onToken = function (token) { return tokens.push(token); }; + } + if (isArray(options.onComment)) + { options.onComment = pushComment(options, options.onComment); } + + return options } -} -exports.R = EncoderBuffer; -EncoderBuffer.isEncoderBuffer = function isEncoderBuffer(data) { - if (data instanceof EncoderBuffer) { - return true; + function pushComment(options, array) { + return function(block, text, start, end, startLoc, endLoc) { + var comment = { + type: block ? "Block" : "Line", + value: text, + start: start, + end: end + }; + if (options.locations) + { comment.loc = new SourceLocation(this, startLoc, endLoc); } + if (options.ranges) + { comment.range = [start, end]; } + array.push(comment); + } } - // Or accept compatible API - const isCompatible = typeof data === 'object' && - data.constructor.name === 'EncoderBuffer' && - typeof data.length === 'number' && - typeof data.join === 'function'; + // Each scope gets a bitset that may contain these flags + var + SCOPE_TOP = 1, + SCOPE_FUNCTION = 2, + SCOPE_ASYNC = 4, + SCOPE_GENERATOR = 8, + SCOPE_ARROW = 16, + SCOPE_SIMPLE_CATCH = 32, + SCOPE_SUPER = 64, + SCOPE_DIRECT_SUPER = 128, + SCOPE_CLASS_STATIC_BLOCK = 256, + SCOPE_VAR = SCOPE_TOP | SCOPE_FUNCTION | SCOPE_CLASS_STATIC_BLOCK; + + function functionFlags(async, generator) { + return SCOPE_FUNCTION | (async ? SCOPE_ASYNC : 0) | (generator ? SCOPE_GENERATOR : 0) + } - return isCompatible; -}; + // Used in checkLVal* and declareName to determine the type of a binding + var + BIND_NONE = 0, // Not a binding + BIND_VAR = 1, // Var-style binding + BIND_LEXICAL = 2, // Let- or const-style binding + BIND_FUNCTION = 3, // Function declaration + BIND_SIMPLE_CATCH = 4, // Simple (identifier pattern) catch binding + BIND_OUTSIDE = 5; // Special case for function names as bound inside the function + + var Parser = function Parser(options, input, startPos) { + this.options = options = getOptions(options); + this.sourceFile = options.sourceFile; + this.keywords = wordsRegexp(keywords$1[options.ecmaVersion >= 6 ? 6 : options.sourceType === "module" ? "5module" : 5]); + var reserved = ""; + if (options.allowReserved !== true) { + reserved = reservedWords[options.ecmaVersion >= 6 ? 6 : options.ecmaVersion === 5 ? 5 : 3]; + if (options.sourceType === "module") { reserved += " await"; } + } + this.reservedWords = wordsRegexp(reserved); + var reservedStrict = (reserved ? reserved + " " : "") + reservedWords.strict; + this.reservedWordsStrict = wordsRegexp(reservedStrict); + this.reservedWordsStrictBind = wordsRegexp(reservedStrict + " " + reservedWords.strictBind); + this.input = String(input); + + // Used to signal to callers of `readWord1` whether the word + // contained any escape sequences. This is needed because words with + // escape sequences must not be interpreted as keywords. + this.containsEsc = false; + + // Set up token state + + // The current position of the tokenizer in the input. + if (startPos) { + this.pos = startPos; + this.lineStart = this.input.lastIndexOf("\n", startPos - 1) + 1; + this.curLine = this.input.slice(0, this.lineStart).split(lineBreak).length; + } else { + this.pos = this.lineStart = 0; + this.curLine = 1; + } -EncoderBuffer.prototype.join = function join(out, offset) { - if (!out) - out = Buffer.alloc(this.length); - if (!offset) - offset = 0; + // Properties of the current token: + // Its type + this.type = types$1.eof; + // For tokens that include more information than their type, the value + this.value = null; + // Its start and end offset + this.start = this.end = this.pos; + // And, if locations are used, the {line, column} object + // corresponding to those offsets + this.startLoc = this.endLoc = this.curPosition(); + + // Position information for the previous token + this.lastTokEndLoc = this.lastTokStartLoc = null; + this.lastTokStart = this.lastTokEnd = this.pos; + + // The context stack is used to superficially track syntactic + // context to predict whether a regular expression is allowed in a + // given position. + this.context = this.initialContext(); + this.exprAllowed = true; + + // Figure out if it's a module code. + this.inModule = options.sourceType === "module"; + this.strict = this.inModule || this.strictDirective(this.pos); + + // Used to signify the start of a potential arrow function + this.potentialArrowAt = -1; + this.potentialArrowInForAwait = false; + + // Positions to delayed-check that yield/await does not exist in default parameters. + this.yieldPos = this.awaitPos = this.awaitIdentPos = 0; + // Labels in scope. + this.labels = []; + // Thus-far undefined exports. + this.undefinedExports = Object.create(null); + + // If enabled, skip leading hashbang line. + if (this.pos === 0 && options.allowHashBang && this.input.slice(0, 2) === "#!") + { this.skipLineComment(2); } + + // Scope tracking for duplicate variable names (see scope.js) + this.scopeStack = []; + this.enterScope(SCOPE_TOP); + + // For RegExp validation + this.regexpState = null; + + // The stack of private names. + // Each element has two properties: 'declared' and 'used'. + // When it exited from the outermost class definition, all used private names must be declared. + this.privateNameStack = []; + }; - if (this.length === 0) - return out; - - if (Array.isArray(this.value)) { - this.value.forEach(function(item) { - item.join(out, offset); - offset += item.length; - }); - } else { - if (typeof this.value === 'number') - out[offset] = this.value; - else if (typeof this.value === 'string') - out.write(this.value, offset); - else if (Buffer.isBuffer(this.value)) - this.value.copy(out, offset); - offset += this.length; - } - - return out; -}; + var prototypeAccessors = { inFunction: { configurable: true },inGenerator: { configurable: true },inAsync: { configurable: true },canAwait: { configurable: true },allowSuper: { configurable: true },allowDirectSuper: { configurable: true },treatFunctionsAsVar: { configurable: true },allowNewDotTarget: { configurable: true },inClassStaticBlock: { configurable: true } }; + Parser.prototype.parse = function parse () { + var node = this.options.program || this.startNode(); + this.nextToken(); + return this.parseTopLevel(node) + }; -/***/ }), + prototypeAccessors.inFunction.get = function () { return (this.currentVarScope().flags & SCOPE_FUNCTION) > 0 }; -/***/ 8096: -/***/ ((__unused_webpack_module, exports, __nccwpck_require__) => { + prototypeAccessors.inGenerator.get = function () { return (this.currentVarScope().flags & SCOPE_GENERATOR) > 0 && !this.currentVarScope().inClassFieldInit }; -"use strict"; + prototypeAccessors.inAsync.get = function () { return (this.currentVarScope().flags & SCOPE_ASYNC) > 0 && !this.currentVarScope().inClassFieldInit }; + prototypeAccessors.canAwait.get = function () { + for (var i = this.scopeStack.length - 1; i >= 0; i--) { + var scope = this.scopeStack[i]; + if (scope.inClassFieldInit || scope.flags & SCOPE_CLASS_STATIC_BLOCK) { return false } + if (scope.flags & SCOPE_FUNCTION) { return (scope.flags & SCOPE_ASYNC) > 0 } + } + return (this.inModule && this.options.ecmaVersion >= 13) || this.options.allowAwaitOutsideFunction + }; -const base = exports; + prototypeAccessors.allowSuper.get = function () { + var ref = this.currentThisScope(); + var flags = ref.flags; + var inClassFieldInit = ref.inClassFieldInit; + return (flags & SCOPE_SUPER) > 0 || inClassFieldInit || this.options.allowSuperOutsideMethod + }; -base.Reporter = (__nccwpck_require__(3744)/* .Reporter */ .b); -base.DecoderBuffer = (__nccwpck_require__(5298)/* .DecoderBuffer */ .C); -base.EncoderBuffer = (__nccwpck_require__(5298)/* .EncoderBuffer */ .R); -base.Node = __nccwpck_require__(842); + prototypeAccessors.allowDirectSuper.get = function () { return (this.currentThisScope().flags & SCOPE_DIRECT_SUPER) > 0 }; + prototypeAccessors.treatFunctionsAsVar.get = function () { return this.treatFunctionsAsVarInScope(this.currentScope()) }; -/***/ }), + prototypeAccessors.allowNewDotTarget.get = function () { + var ref = this.currentThisScope(); + var flags = ref.flags; + var inClassFieldInit = ref.inClassFieldInit; + return (flags & (SCOPE_FUNCTION | SCOPE_CLASS_STATIC_BLOCK)) > 0 || inClassFieldInit + }; -/***/ 842: -/***/ ((module, __unused_webpack_exports, __nccwpck_require__) => { + prototypeAccessors.inClassStaticBlock.get = function () { + return (this.currentVarScope().flags & SCOPE_CLASS_STATIC_BLOCK) > 0 + }; -"use strict"; + Parser.extend = function extend () { + var plugins = [], len = arguments.length; + while ( len-- ) plugins[ len ] = arguments[ len ]; + var cls = this; + for (var i = 0; i < plugins.length; i++) { cls = plugins[i](cls); } + return cls + }; -const Reporter = (__nccwpck_require__(3744)/* .Reporter */ .b); -const EncoderBuffer = (__nccwpck_require__(5298)/* .EncoderBuffer */ .R); -const DecoderBuffer = (__nccwpck_require__(5298)/* .DecoderBuffer */ .C); -const assert = __nccwpck_require__(910); + Parser.parse = function parse (input, options) { + return new this(options, input).parse() + }; -// Supported tags -const tags = [ - 'seq', 'seqof', 'set', 'setof', 'objid', 'bool', - 'gentime', 'utctime', 'null_', 'enum', 'int', 'objDesc', - 'bitstr', 'bmpstr', 'charstr', 'genstr', 'graphstr', 'ia5str', 'iso646str', - 'numstr', 'octstr', 'printstr', 't61str', 'unistr', 'utf8str', 'videostr' -]; + Parser.parseExpressionAt = function parseExpressionAt (input, pos, options) { + var parser = new this(options, input, pos); + parser.nextToken(); + return parser.parseExpression() + }; -// Public methods list -const methods = [ - 'key', 'obj', 'use', 'optional', 'explicit', 'implicit', 'def', 'choice', - 'any', 'contains' -].concat(tags); + Parser.tokenizer = function tokenizer (input, options) { + return new this(options, input) + }; -// Overrided methods list -const overrided = [ - '_peekTag', '_decodeTag', '_use', - '_decodeStr', '_decodeObjid', '_decodeTime', - '_decodeNull', '_decodeInt', '_decodeBool', '_decodeList', + Object.defineProperties( Parser.prototype, prototypeAccessors ); + + var pp$9 = Parser.prototype; + + // ## Parser utilities + + var literal = /^(?:'((?:\\.|[^'\\])*?)'|"((?:\\.|[^"\\])*?)")/; + pp$9.strictDirective = function(start) { + for (;;) { + // Try to find string literal. + skipWhiteSpace.lastIndex = start; + start += skipWhiteSpace.exec(this.input)[0].length; + var match = literal.exec(this.input.slice(start)); + if (!match) { return false } + if ((match[1] || match[2]) === "use strict") { + skipWhiteSpace.lastIndex = start + match[0].length; + var spaceAfter = skipWhiteSpace.exec(this.input), end = spaceAfter.index + spaceAfter[0].length; + var next = this.input.charAt(end); + return next === ";" || next === "}" || + (lineBreak.test(spaceAfter[0]) && + !(/[(`.[+\-/*%<>=,?^&]/.test(next) || next === "!" && this.input.charAt(end + 1) === "=")) + } + start += match[0].length; - '_encodeComposite', '_encodeStr', '_encodeObjid', '_encodeTime', - '_encodeNull', '_encodeInt', '_encodeBool' -]; + // Skip semicolon, if any. + skipWhiteSpace.lastIndex = start; + start += skipWhiteSpace.exec(this.input)[0].length; + if (this.input[start] === ";") + { start++; } + } + }; -function Node(enc, parent, name) { - const state = {}; - this._baseState = state; + // Predicate that tests whether the next token is of the given + // type, and if yes, consumes it as a side effect. - state.name = name; - state.enc = enc; + pp$9.eat = function(type) { + if (this.type === type) { + this.next(); + return true + } else { + return false + } + }; - state.parent = parent || null; - state.children = null; + // Tests whether parsed token is a contextual keyword. - // State - state.tag = null; - state.args = null; - state.reverseArgs = null; - state.choice = null; - state.optional = false; - state.any = false; - state.obj = false; - state.use = null; - state.useDecoder = null; - state.key = null; - state['default'] = null; - state.explicit = null; - state.implicit = null; - state.contains = null; + pp$9.isContextual = function(name) { + return this.type === types$1.name && this.value === name && !this.containsEsc + }; - // Should create new instance on each method - if (!state.parent) { - state.children = []; - this._wrap(); - } -} -module.exports = Node; + // Consumes contextual keyword if possible. -const stateProps = [ - 'enc', 'parent', 'children', 'tag', 'args', 'reverseArgs', 'choice', - 'optional', 'any', 'obj', 'use', 'alteredUse', 'key', 'default', 'explicit', - 'implicit', 'contains' -]; + pp$9.eatContextual = function(name) { + if (!this.isContextual(name)) { return false } + this.next(); + return true + }; -Node.prototype.clone = function clone() { - const state = this._baseState; - const cstate = {}; - stateProps.forEach(function(prop) { - cstate[prop] = state[prop]; - }); - const res = new this.constructor(cstate.parent); - res._baseState = cstate; - return res; -}; + // Asserts that following token is given contextual keyword. -Node.prototype._wrap = function wrap() { - const state = this._baseState; - methods.forEach(function(method) { - this[method] = function _wrappedMethod() { - const clone = new this.constructor(this); - state.children.push(clone); - return clone[method].apply(clone, arguments); - }; - }, this); -}; + pp$9.expectContextual = function(name) { + if (!this.eatContextual(name)) { this.unexpected(); } + }; -Node.prototype._init = function init(body) { - const state = this._baseState; + // Test whether a semicolon can be inserted at the current position. - assert(state.parent === null); - body.call(this); + pp$9.canInsertSemicolon = function() { + return this.type === types$1.eof || + this.type === types$1.braceR || + lineBreak.test(this.input.slice(this.lastTokEnd, this.start)) + }; - // Filter children - state.children = state.children.filter(function(child) { - return child._baseState.parent === this; - }, this); - assert.equal(state.children.length, 1, 'Root node can have only one child'); -}; + pp$9.insertSemicolon = function() { + if (this.canInsertSemicolon()) { + if (this.options.onInsertedSemicolon) + { this.options.onInsertedSemicolon(this.lastTokEnd, this.lastTokEndLoc); } + return true + } + }; -Node.prototype._useArgs = function useArgs(args) { - const state = this._baseState; + // Consume a semicolon, or, failing that, see if we are allowed to + // pretend that there is a semicolon at this position. - // Filter children and args - const children = args.filter(function(arg) { - return arg instanceof this.constructor; - }, this); - args = args.filter(function(arg) { - return !(arg instanceof this.constructor); - }, this); + pp$9.semicolon = function() { + if (!this.eat(types$1.semi) && !this.insertSemicolon()) { this.unexpected(); } + }; - if (children.length !== 0) { - assert(state.children === null); - state.children = children; + pp$9.afterTrailingComma = function(tokType, notNext) { + if (this.type === tokType) { + if (this.options.onTrailingComma) + { this.options.onTrailingComma(this.lastTokStart, this.lastTokStartLoc); } + if (!notNext) + { this.next(); } + return true + } + }; - // Replace parent to maintain backward link - children.forEach(function(child) { - child._baseState.parent = this; - }, this); - } - if (args.length !== 0) { - assert(state.args === null); - state.args = args; - state.reverseArgs = args.map(function(arg) { - if (typeof arg !== 'object' || arg.constructor !== Object) - return arg; + // Expect a token of a given type. If found, consume it, otherwise, + // raise an unexpected token error. - const res = {}; - Object.keys(arg).forEach(function(key) { - if (key == (key | 0)) - key |= 0; - const value = arg[key]; - res[value] = key; - }); - return res; - }); - } -}; + pp$9.expect = function(type) { + this.eat(type) || this.unexpected(); + }; -// -// Overrided methods -// + // Raise an unexpected token error. -overrided.forEach(function(method) { - Node.prototype[method] = function _overrided() { - const state = this._baseState; - throw new Error(method + ' not implemented for encoding: ' + state.enc); + pp$9.unexpected = function(pos) { + this.raise(pos != null ? pos : this.start, "Unexpected token"); }; -}); -// -// Public methods -// + function DestructuringErrors() { + this.shorthandAssign = + this.trailingComma = + this.parenthesizedAssign = + this.parenthesizedBind = + this.doubleProto = + -1; + } -tags.forEach(function(tag) { - Node.prototype[tag] = function _tagMethod() { - const state = this._baseState; - const args = Array.prototype.slice.call(arguments); + pp$9.checkPatternErrors = function(refDestructuringErrors, isAssign) { + if (!refDestructuringErrors) { return } + if (refDestructuringErrors.trailingComma > -1) + { this.raiseRecoverable(refDestructuringErrors.trailingComma, "Comma is not permitted after the rest element"); } + var parens = isAssign ? refDestructuringErrors.parenthesizedAssign : refDestructuringErrors.parenthesizedBind; + if (parens > -1) { this.raiseRecoverable(parens, "Parenthesized pattern"); } + }; - assert(state.tag === null); - state.tag = tag; + pp$9.checkExpressionErrors = function(refDestructuringErrors, andThrow) { + if (!refDestructuringErrors) { return false } + var shorthandAssign = refDestructuringErrors.shorthandAssign; + var doubleProto = refDestructuringErrors.doubleProto; + if (!andThrow) { return shorthandAssign >= 0 || doubleProto >= 0 } + if (shorthandAssign >= 0) + { this.raise(shorthandAssign, "Shorthand property assignments are valid only in destructuring patterns"); } + if (doubleProto >= 0) + { this.raiseRecoverable(doubleProto, "Redefinition of __proto__ property"); } + }; - this._useArgs(args); + pp$9.checkYieldAwaitInDefaultParams = function() { + if (this.yieldPos && (!this.awaitPos || this.yieldPos < this.awaitPos)) + { this.raise(this.yieldPos, "Yield expression cannot be a default value"); } + if (this.awaitPos) + { this.raise(this.awaitPos, "Await expression cannot be a default value"); } + }; - return this; + pp$9.isSimpleAssignTarget = function(expr) { + if (expr.type === "ParenthesizedExpression") + { return this.isSimpleAssignTarget(expr.expression) } + return expr.type === "Identifier" || expr.type === "MemberExpression" }; -}); -Node.prototype.use = function use(item) { - assert(item); - const state = this._baseState; + var pp$8 = Parser.prototype; - assert(state.use === null); - state.use = item; + // ### Statement parsing - return this; -}; + // Parse a program. Initializes the parser, reads any number of + // statements, and wraps them in a Program node. Optionally takes a + // `program` argument. If present, the statements will be appended + // to its body instead of creating a new node. -Node.prototype.optional = function optional() { - const state = this._baseState; + pp$8.parseTopLevel = function(node) { + var exports = Object.create(null); + if (!node.body) { node.body = []; } + while (this.type !== types$1.eof) { + var stmt = this.parseStatement(null, true, exports); + node.body.push(stmt); + } + if (this.inModule) + { for (var i = 0, list = Object.keys(this.undefinedExports); i < list.length; i += 1) + { + var name = list[i]; + + this.raiseRecoverable(this.undefinedExports[name].start, ("Export '" + name + "' is not defined")); + } } + this.adaptDirectivePrologue(node.body); + this.next(); + node.sourceType = this.options.sourceType; + return this.finishNode(node, "Program") + }; - state.optional = true; + var loopLabel = {kind: "loop"}, switchLabel = {kind: "switch"}; + + pp$8.isLet = function(context) { + if (this.options.ecmaVersion < 6 || !this.isContextual("let")) { return false } + skipWhiteSpace.lastIndex = this.pos; + var skip = skipWhiteSpace.exec(this.input); + var next = this.pos + skip[0].length, nextCh = this.input.charCodeAt(next); + // For ambiguous cases, determine if a LexicalDeclaration (or only a + // Statement) is allowed here. If context is not empty then only a Statement + // is allowed. However, `let [` is an explicit negative lookahead for + // ExpressionStatement, so special-case it first. + if (nextCh === 91 || nextCh === 92 || nextCh > 0xd7ff && nextCh < 0xdc00) { return true } // '[', '/', astral + if (context) { return false } + + if (nextCh === 123) { return true } // '{' + if (isIdentifierStart(nextCh, true)) { + var pos = next + 1; + while (isIdentifierChar(nextCh = this.input.charCodeAt(pos), true)) { ++pos; } + if (nextCh === 92 || nextCh > 0xd7ff && nextCh < 0xdc00) { return true } + var ident = this.input.slice(next, pos); + if (!keywordRelationalOperator.test(ident)) { return true } + } + return false + }; - return this; -}; + // check 'async [no LineTerminator here] function' + // - 'async /*foo*/ function' is OK. + // - 'async /*\n*/ function' is invalid. + pp$8.isAsyncFunction = function() { + if (this.options.ecmaVersion < 8 || !this.isContextual("async")) + { return false } + + skipWhiteSpace.lastIndex = this.pos; + var skip = skipWhiteSpace.exec(this.input); + var next = this.pos + skip[0].length, after; + return !lineBreak.test(this.input.slice(this.pos, next)) && + this.input.slice(next, next + 8) === "function" && + (next + 8 === this.input.length || + !(isIdentifierChar(after = this.input.charCodeAt(next + 8)) || after > 0xd7ff && after < 0xdc00)) + }; -Node.prototype.def = function def(val) { - const state = this._baseState; + // Parse a single statement. + // + // If expecting a statement and finding a slash operator, parse a + // regular expression literal. This is to handle cases like + // `if (foo) /blah/.exec(foo)`, where looking at the previous token + // does not help. - assert(state['default'] === null); - state['default'] = val; - state.optional = true; + pp$8.parseStatement = function(context, topLevel, exports) { + var starttype = this.type, node = this.startNode(), kind; - return this; -}; + if (this.isLet(context)) { + starttype = types$1._var; + kind = "let"; + } -Node.prototype.explicit = function explicit(num) { - const state = this._baseState; + // Most types of statements are recognized by the keyword they + // start with. Many are trivial to parse, some require a bit of + // complexity. + + switch (starttype) { + case types$1._break: case types$1._continue: return this.parseBreakContinueStatement(node, starttype.keyword) + case types$1._debugger: return this.parseDebuggerStatement(node) + case types$1._do: return this.parseDoStatement(node) + case types$1._for: return this.parseForStatement(node) + case types$1._function: + // Function as sole body of either an if statement or a labeled statement + // works, but not when it is part of a labeled statement that is the sole + // body of an if statement. + if ((context && (this.strict || context !== "if" && context !== "label")) && this.options.ecmaVersion >= 6) { this.unexpected(); } + return this.parseFunctionStatement(node, false, !context) + case types$1._class: + if (context) { this.unexpected(); } + return this.parseClass(node, true) + case types$1._if: return this.parseIfStatement(node) + case types$1._return: return this.parseReturnStatement(node) + case types$1._switch: return this.parseSwitchStatement(node) + case types$1._throw: return this.parseThrowStatement(node) + case types$1._try: return this.parseTryStatement(node) + case types$1._const: case types$1._var: + kind = kind || this.value; + if (context && kind !== "var") { this.unexpected(); } + return this.parseVarStatement(node, kind) + case types$1._while: return this.parseWhileStatement(node) + case types$1._with: return this.parseWithStatement(node) + case types$1.braceL: return this.parseBlock(true, node) + case types$1.semi: return this.parseEmptyStatement(node) + case types$1._export: + case types$1._import: + if (this.options.ecmaVersion > 10 && starttype === types$1._import) { + skipWhiteSpace.lastIndex = this.pos; + var skip = skipWhiteSpace.exec(this.input); + var next = this.pos + skip[0].length, nextCh = this.input.charCodeAt(next); + if (nextCh === 40 || nextCh === 46) // '(' or '.' + { return this.parseExpressionStatement(node, this.parseExpression()) } + } - assert(state.explicit === null && state.implicit === null); - state.explicit = num; + if (!this.options.allowImportExportEverywhere) { + if (!topLevel) + { this.raise(this.start, "'import' and 'export' may only appear at the top level"); } + if (!this.inModule) + { this.raise(this.start, "'import' and 'export' may appear only with 'sourceType: module'"); } + } + return starttype === types$1._import ? this.parseImport(node) : this.parseExport(node, exports) - return this; -}; + // If the statement does not start with a statement keyword or a + // brace, it's an ExpressionStatement or LabeledStatement. We + // simply start parsing an expression, and afterwards, if the + // next token is a colon and the expression was a simple + // Identifier node, we switch to interpreting it as a label. + default: + if (this.isAsyncFunction()) { + if (context) { this.unexpected(); } + this.next(); + return this.parseFunctionStatement(node, true, !context) + } -Node.prototype.implicit = function implicit(num) { - const state = this._baseState; + var maybeName = this.value, expr = this.parseExpression(); + if (starttype === types$1.name && expr.type === "Identifier" && this.eat(types$1.colon)) + { return this.parseLabeledStatement(node, maybeName, expr, context) } + else { return this.parseExpressionStatement(node, expr) } + } + }; - assert(state.explicit === null && state.implicit === null); - state.implicit = num; + pp$8.parseBreakContinueStatement = function(node, keyword) { + var isBreak = keyword === "break"; + this.next(); + if (this.eat(types$1.semi) || this.insertSemicolon()) { node.label = null; } + else if (this.type !== types$1.name) { this.unexpected(); } + else { + node.label = this.parseIdent(); + this.semicolon(); + } - return this; -}; + // Verify that there is an actual destination to break or + // continue to. + var i = 0; + for (; i < this.labels.length; ++i) { + var lab = this.labels[i]; + if (node.label == null || lab.name === node.label.name) { + if (lab.kind != null && (isBreak || lab.kind === "loop")) { break } + if (node.label && isBreak) { break } + } + } + if (i === this.labels.length) { this.raise(node.start, "Unsyntactic " + keyword); } + return this.finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement") + }; -Node.prototype.obj = function obj() { - const state = this._baseState; - const args = Array.prototype.slice.call(arguments); + pp$8.parseDebuggerStatement = function(node) { + this.next(); + this.semicolon(); + return this.finishNode(node, "DebuggerStatement") + }; - state.obj = true; + pp$8.parseDoStatement = function(node) { + this.next(); + this.labels.push(loopLabel); + node.body = this.parseStatement("do"); + this.labels.pop(); + this.expect(types$1._while); + node.test = this.parseParenExpression(); + if (this.options.ecmaVersion >= 6) + { this.eat(types$1.semi); } + else + { this.semicolon(); } + return this.finishNode(node, "DoWhileStatement") + }; - if (args.length !== 0) - this._useArgs(args); + // Disambiguating between a `for` and a `for`/`in` or `for`/`of` + // loop is non-trivial. Basically, we have to parse the init `var` + // statement or expression, disallowing the `in` operator (see + // the second parameter to `parseExpression`), and then check + // whether the next token is `in` or `of`. When there is no init + // part (semicolon immediately after the opening parenthesis), it + // is a regular `for` loop. + + pp$8.parseForStatement = function(node) { + this.next(); + var awaitAt = (this.options.ecmaVersion >= 9 && this.canAwait && this.eatContextual("await")) ? this.lastTokStart : -1; + this.labels.push(loopLabel); + this.enterScope(0); + this.expect(types$1.parenL); + if (this.type === types$1.semi) { + if (awaitAt > -1) { this.unexpected(awaitAt); } + return this.parseFor(node, null) + } + var isLet = this.isLet(); + if (this.type === types$1._var || this.type === types$1._const || isLet) { + var init$1 = this.startNode(), kind = isLet ? "let" : this.value; + this.next(); + this.parseVar(init$1, true, kind); + this.finishNode(init$1, "VariableDeclaration"); + if ((this.type === types$1._in || (this.options.ecmaVersion >= 6 && this.isContextual("of"))) && init$1.declarations.length === 1) { + if (this.options.ecmaVersion >= 9) { + if (this.type === types$1._in) { + if (awaitAt > -1) { this.unexpected(awaitAt); } + } else { node.await = awaitAt > -1; } + } + return this.parseForIn(node, init$1) + } + if (awaitAt > -1) { this.unexpected(awaitAt); } + return this.parseFor(node, init$1) + } + var startsWithLet = this.isContextual("let"), isForOf = false; + var refDestructuringErrors = new DestructuringErrors; + var init = this.parseExpression(awaitAt > -1 ? "await" : true, refDestructuringErrors); + if (this.type === types$1._in || (isForOf = this.options.ecmaVersion >= 6 && this.isContextual("of"))) { + if (this.options.ecmaVersion >= 9) { + if (this.type === types$1._in) { + if (awaitAt > -1) { this.unexpected(awaitAt); } + } else { node.await = awaitAt > -1; } + } + if (startsWithLet && isForOf) { this.raise(init.start, "The left-hand side of a for-of loop may not start with 'let'."); } + this.toAssignable(init, false, refDestructuringErrors); + this.checkLValPattern(init); + return this.parseForIn(node, init) + } else { + this.checkExpressionErrors(refDestructuringErrors, true); + } + if (awaitAt > -1) { this.unexpected(awaitAt); } + return this.parseFor(node, init) + }; - return this; -}; + pp$8.parseFunctionStatement = function(node, isAsync, declarationPosition) { + this.next(); + return this.parseFunction(node, FUNC_STATEMENT | (declarationPosition ? 0 : FUNC_HANGING_STATEMENT), false, isAsync) + }; -Node.prototype.key = function key(newKey) { - const state = this._baseState; + pp$8.parseIfStatement = function(node) { + this.next(); + node.test = this.parseParenExpression(); + // allow function declarations in branches, but only in non-strict mode + node.consequent = this.parseStatement("if"); + node.alternate = this.eat(types$1._else) ? this.parseStatement("if") : null; + return this.finishNode(node, "IfStatement") + }; - assert(state.key === null); - state.key = newKey; + pp$8.parseReturnStatement = function(node) { + if (!this.inFunction && !this.options.allowReturnOutsideFunction) + { this.raise(this.start, "'return' outside of function"); } + this.next(); - return this; -}; + // In `return` (and `break`/`continue`), the keywords with + // optional arguments, we eagerly look for a semicolon or the + // possibility to insert one. -Node.prototype.any = function any() { - const state = this._baseState; + if (this.eat(types$1.semi) || this.insertSemicolon()) { node.argument = null; } + else { node.argument = this.parseExpression(); this.semicolon(); } + return this.finishNode(node, "ReturnStatement") + }; - state.any = true; + pp$8.parseSwitchStatement = function(node) { + this.next(); + node.discriminant = this.parseParenExpression(); + node.cases = []; + this.expect(types$1.braceL); + this.labels.push(switchLabel); + this.enterScope(0); + + // Statements under must be grouped (by label) in SwitchCase + // nodes. `cur` is used to keep the node that we are currently + // adding statements to. + + var cur; + for (var sawDefault = false; this.type !== types$1.braceR;) { + if (this.type === types$1._case || this.type === types$1._default) { + var isCase = this.type === types$1._case; + if (cur) { this.finishNode(cur, "SwitchCase"); } + node.cases.push(cur = this.startNode()); + cur.consequent = []; + this.next(); + if (isCase) { + cur.test = this.parseExpression(); + } else { + if (sawDefault) { this.raiseRecoverable(this.lastTokStart, "Multiple default clauses"); } + sawDefault = true; + cur.test = null; + } + this.expect(types$1.colon); + } else { + if (!cur) { this.unexpected(); } + cur.consequent.push(this.parseStatement(null)); + } + } + this.exitScope(); + if (cur) { this.finishNode(cur, "SwitchCase"); } + this.next(); // Closing brace + this.labels.pop(); + return this.finishNode(node, "SwitchStatement") + }; - return this; -}; + pp$8.parseThrowStatement = function(node) { + this.next(); + if (lineBreak.test(this.input.slice(this.lastTokEnd, this.start))) + { this.raise(this.lastTokEnd, "Illegal newline after throw"); } + node.argument = this.parseExpression(); + this.semicolon(); + return this.finishNode(node, "ThrowStatement") + }; -Node.prototype.choice = function choice(obj) { - const state = this._baseState; + // Reused empty array added for node fields that are always empty. + + var empty$1 = []; + + pp$8.parseTryStatement = function(node) { + this.next(); + node.block = this.parseBlock(); + node.handler = null; + if (this.type === types$1._catch) { + var clause = this.startNode(); + this.next(); + if (this.eat(types$1.parenL)) { + clause.param = this.parseBindingAtom(); + var simple = clause.param.type === "Identifier"; + this.enterScope(simple ? SCOPE_SIMPLE_CATCH : 0); + this.checkLValPattern(clause.param, simple ? BIND_SIMPLE_CATCH : BIND_LEXICAL); + this.expect(types$1.parenR); + } else { + if (this.options.ecmaVersion < 10) { this.unexpected(); } + clause.param = null; + this.enterScope(0); + } + clause.body = this.parseBlock(false); + this.exitScope(); + node.handler = this.finishNode(clause, "CatchClause"); + } + node.finalizer = this.eat(types$1._finally) ? this.parseBlock() : null; + if (!node.handler && !node.finalizer) + { this.raise(node.start, "Missing catch or finally clause"); } + return this.finishNode(node, "TryStatement") + }; - assert(state.choice === null); - state.choice = obj; - this._useArgs(Object.keys(obj).map(function(key) { - return obj[key]; - })); + pp$8.parseVarStatement = function(node, kind) { + this.next(); + this.parseVar(node, false, kind); + this.semicolon(); + return this.finishNode(node, "VariableDeclaration") + }; - return this; -}; + pp$8.parseWhileStatement = function(node) { + this.next(); + node.test = this.parseParenExpression(); + this.labels.push(loopLabel); + node.body = this.parseStatement("while"); + this.labels.pop(); + return this.finishNode(node, "WhileStatement") + }; -Node.prototype.contains = function contains(item) { - const state = this._baseState; + pp$8.parseWithStatement = function(node) { + if (this.strict) { this.raise(this.start, "'with' in strict mode"); } + this.next(); + node.object = this.parseParenExpression(); + node.body = this.parseStatement("with"); + return this.finishNode(node, "WithStatement") + }; - assert(state.use === null); - state.contains = item; + pp$8.parseEmptyStatement = function(node) { + this.next(); + return this.finishNode(node, "EmptyStatement") + }; - return this; -}; + pp$8.parseLabeledStatement = function(node, maybeName, expr, context) { + for (var i$1 = 0, list = this.labels; i$1 < list.length; i$1 += 1) + { + var label = list[i$1]; + + if (label.name === maybeName) + { this.raise(expr.start, "Label '" + maybeName + "' is already declared"); + } } + var kind = this.type.isLoop ? "loop" : this.type === types$1._switch ? "switch" : null; + for (var i = this.labels.length - 1; i >= 0; i--) { + var label$1 = this.labels[i]; + if (label$1.statementStart === node.start) { + // Update information about previous labels on this node + label$1.statementStart = this.start; + label$1.kind = kind; + } else { break } + } + this.labels.push({name: maybeName, kind: kind, statementStart: this.start}); + node.body = this.parseStatement(context ? context.indexOf("label") === -1 ? context + "label" : context : "label"); + this.labels.pop(); + node.label = expr; + return this.finishNode(node, "LabeledStatement") + }; -// -// Decoding -// + pp$8.parseExpressionStatement = function(node, expr) { + node.expression = expr; + this.semicolon(); + return this.finishNode(node, "ExpressionStatement") + }; -Node.prototype._decode = function decode(input, options) { - const state = this._baseState; + // Parse a semicolon-enclosed block of statements, handling `"use + // strict"` declarations when `allowStrict` is true (used for + // function bodies). - // Decode root node - if (state.parent === null) - return input.wrapResult(state.children[0]._decode(input, options)); + pp$8.parseBlock = function(createNewLexicalScope, node, exitStrict) { + if ( createNewLexicalScope === void 0 ) createNewLexicalScope = true; + if ( node === void 0 ) node = this.startNode(); - let result = state['default']; - let present = true; + node.body = []; + this.expect(types$1.braceL); + if (createNewLexicalScope) { this.enterScope(0); } + while (this.type !== types$1.braceR) { + var stmt = this.parseStatement(null); + node.body.push(stmt); + } + if (exitStrict) { this.strict = false; } + this.next(); + if (createNewLexicalScope) { this.exitScope(); } + return this.finishNode(node, "BlockStatement") + }; - let prevKey = null; - if (state.key !== null) - prevKey = input.enterKey(state.key); + // Parse a regular `for` loop. The disambiguation code in + // `parseStatement` will already have parsed the init statement or + // expression. + + pp$8.parseFor = function(node, init) { + node.init = init; + this.expect(types$1.semi); + node.test = this.type === types$1.semi ? null : this.parseExpression(); + this.expect(types$1.semi); + node.update = this.type === types$1.parenR ? null : this.parseExpression(); + this.expect(types$1.parenR); + node.body = this.parseStatement("for"); + this.exitScope(); + this.labels.pop(); + return this.finishNode(node, "ForStatement") + }; - // Check if tag is there - if (state.optional) { - let tag = null; - if (state.explicit !== null) - tag = state.explicit; - else if (state.implicit !== null) - tag = state.implicit; - else if (state.tag !== null) - tag = state.tag; + // Parse a `for`/`in` and `for`/`of` loop, which are almost + // same from parser's perspective. + + pp$8.parseForIn = function(node, init) { + var isForIn = this.type === types$1._in; + this.next(); + + if ( + init.type === "VariableDeclaration" && + init.declarations[0].init != null && + ( + !isForIn || + this.options.ecmaVersion < 8 || + this.strict || + init.kind !== "var" || + init.declarations[0].id.type !== "Identifier" + ) + ) { + this.raise( + init.start, + ((isForIn ? "for-in" : "for-of") + " loop variable declaration may not have an initializer") + ); + } + node.left = init; + node.right = isForIn ? this.parseExpression() : this.parseMaybeAssign(); + this.expect(types$1.parenR); + node.body = this.parseStatement("for"); + this.exitScope(); + this.labels.pop(); + return this.finishNode(node, isForIn ? "ForInStatement" : "ForOfStatement") + }; - if (tag === null && !state.any) { - // Trial and Error - const save = input.save(); - try { - if (state.choice === null) - this._decodeGeneric(state.tag, input, options); - else - this._decodeChoice(input, options); - present = true; - } catch (e) { - present = false; + // Parse a list of variable declarations. + + pp$8.parseVar = function(node, isFor, kind) { + node.declarations = []; + node.kind = kind; + for (;;) { + var decl = this.startNode(); + this.parseVarId(decl, kind); + if (this.eat(types$1.eq)) { + decl.init = this.parseMaybeAssign(isFor); + } else if (kind === "const" && !(this.type === types$1._in || (this.options.ecmaVersion >= 6 && this.isContextual("of")))) { + this.unexpected(); + } else if (decl.id.type !== "Identifier" && !(isFor && (this.type === types$1._in || this.isContextual("of")))) { + this.raise(this.lastTokEnd, "Complex binding patterns require an initialization value"); + } else { + decl.init = null; } - input.restore(save); - } else { - present = this._peekTag(input, tag, state.any); - - if (input.isError(present)) - return present; + node.declarations.push(this.finishNode(decl, "VariableDeclarator")); + if (!this.eat(types$1.comma)) { break } } - } + return node + }; - // Push object on stack - let prevObj; - if (state.obj && present) - prevObj = input.enterObject(); + pp$8.parseVarId = function(decl, kind) { + decl.id = this.parseBindingAtom(); + this.checkLValPattern(decl.id, kind === "var" ? BIND_VAR : BIND_LEXICAL, false); + }; - if (present) { - // Unwrap explicit values - if (state.explicit !== null) { - const explicit = this._decodeTag(input, state.explicit); - if (input.isError(explicit)) - return explicit; - input = explicit; + var FUNC_STATEMENT = 1, FUNC_HANGING_STATEMENT = 2, FUNC_NULLABLE_ID = 4; + + // Parse a function declaration or literal (depending on the + // `statement & FUNC_STATEMENT`). + + // Remove `allowExpressionBody` for 7.0.0, as it is only called with false + pp$8.parseFunction = function(node, statement, allowExpressionBody, isAsync, forInit) { + this.initFunction(node); + if (this.options.ecmaVersion >= 9 || this.options.ecmaVersion >= 6 && !isAsync) { + if (this.type === types$1.star && (statement & FUNC_HANGING_STATEMENT)) + { this.unexpected(); } + node.generator = this.eat(types$1.star); + } + if (this.options.ecmaVersion >= 8) + { node.async = !!isAsync; } + + if (statement & FUNC_STATEMENT) { + node.id = (statement & FUNC_NULLABLE_ID) && this.type !== types$1.name ? null : this.parseIdent(); + if (node.id && !(statement & FUNC_HANGING_STATEMENT)) + // If it is a regular function declaration in sloppy mode, then it is + // subject to Annex B semantics (BIND_FUNCTION). Otherwise, the binding + // mode depends on properties of the current scope (see + // treatFunctionsAsVar). + { this.checkLValSimple(node.id, (this.strict || node.generator || node.async) ? this.treatFunctionsAsVar ? BIND_VAR : BIND_LEXICAL : BIND_FUNCTION); } } - const start = input.offset; + var oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldAwaitIdentPos = this.awaitIdentPos; + this.yieldPos = 0; + this.awaitPos = 0; + this.awaitIdentPos = 0; + this.enterScope(functionFlags(node.async, node.generator)); - // Unwrap implicit and normal values - if (state.use === null && state.choice === null) { - let save; - if (state.any) - save = input.save(); - const body = this._decodeTag( - input, - state.implicit !== null ? state.implicit : state.tag, - state.any - ); - if (input.isError(body)) - return body; + if (!(statement & FUNC_STATEMENT)) + { node.id = this.type === types$1.name ? this.parseIdent() : null; } - if (state.any) - result = input.raw(save); - else - input = body; + this.parseFunctionParams(node); + this.parseFunctionBody(node, allowExpressionBody, false, forInit); + + this.yieldPos = oldYieldPos; + this.awaitPos = oldAwaitPos; + this.awaitIdentPos = oldAwaitIdentPos; + return this.finishNode(node, (statement & FUNC_STATEMENT) ? "FunctionDeclaration" : "FunctionExpression") + }; + + pp$8.parseFunctionParams = function(node) { + this.expect(types$1.parenL); + node.params = this.parseBindingList(types$1.parenR, false, this.options.ecmaVersion >= 8); + this.checkYieldAwaitInDefaultParams(); + }; + + // Parse a class declaration or literal (depending on the + // `isStatement` parameter). + + pp$8.parseClass = function(node, isStatement) { + this.next(); + + // ecma-262 14.6 Class Definitions + // A class definition is always strict mode code. + var oldStrict = this.strict; + this.strict = true; + + this.parseClassId(node, isStatement); + this.parseClassSuper(node); + var privateNameMap = this.enterClassBody(); + var classBody = this.startNode(); + var hadConstructor = false; + classBody.body = []; + this.expect(types$1.braceL); + while (this.type !== types$1.braceR) { + var element = this.parseClassElement(node.superClass !== null); + if (element) { + classBody.body.push(element); + if (element.type === "MethodDefinition" && element.kind === "constructor") { + if (hadConstructor) { this.raise(element.start, "Duplicate constructor in the same class"); } + hadConstructor = true; + } else if (element.key && element.key.type === "PrivateIdentifier" && isPrivateNameConflicted(privateNameMap, element)) { + this.raiseRecoverable(element.key.start, ("Identifier '#" + (element.key.name) + "' has already been declared")); + } + } } + this.strict = oldStrict; + this.next(); + node.body = this.finishNode(classBody, "ClassBody"); + this.exitClassBody(); + return this.finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression") + }; - if (options && options.track && state.tag !== null) - options.track(input.path(), start, input.length, 'tagged'); + pp$8.parseClassElement = function(constructorAllowsSuper) { + if (this.eat(types$1.semi)) { return null } + + var ecmaVersion = this.options.ecmaVersion; + var node = this.startNode(); + var keyName = ""; + var isGenerator = false; + var isAsync = false; + var kind = "method"; + var isStatic = false; + + if (this.eatContextual("static")) { + // Parse static init block + if (ecmaVersion >= 13 && this.eat(types$1.braceL)) { + this.parseClassStaticBlock(node); + return node + } + if (this.isClassElementNameStart() || this.type === types$1.star) { + isStatic = true; + } else { + keyName = "static"; + } + } + node.static = isStatic; + if (!keyName && ecmaVersion >= 8 && this.eatContextual("async")) { + if ((this.isClassElementNameStart() || this.type === types$1.star) && !this.canInsertSemicolon()) { + isAsync = true; + } else { + keyName = "async"; + } + } + if (!keyName && (ecmaVersion >= 9 || !isAsync) && this.eat(types$1.star)) { + isGenerator = true; + } + if (!keyName && !isAsync && !isGenerator) { + var lastValue = this.value; + if (this.eatContextual("get") || this.eatContextual("set")) { + if (this.isClassElementNameStart()) { + kind = lastValue; + } else { + keyName = lastValue; + } + } + } - if (options && options.track && state.tag !== null) - options.track(input.path(), input.offset, input.length, 'content'); + // Parse element name + if (keyName) { + // 'async', 'get', 'set', or 'static' were not a keyword contextually. + // The last token is any of those. Make it the element name. + node.computed = false; + node.key = this.startNodeAt(this.lastTokStart, this.lastTokStartLoc); + node.key.name = keyName; + this.finishNode(node.key, "Identifier"); + } else { + this.parseClassElementName(node); + } - // Select proper method for tag - if (state.any) { - // no-op - } else if (state.choice === null) { - result = this._decodeGeneric(state.tag, input, options); + // Parse element value + if (ecmaVersion < 13 || this.type === types$1.parenL || kind !== "method" || isGenerator || isAsync) { + var isConstructor = !node.static && checkKeyName(node, "constructor"); + var allowsDirectSuper = isConstructor && constructorAllowsSuper; + // Couldn't move this check into the 'parseClassMethod' method for backward compatibility. + if (isConstructor && kind !== "method") { this.raise(node.key.start, "Constructor can't have get/set modifier"); } + node.kind = isConstructor ? "constructor" : kind; + this.parseClassMethod(node, isGenerator, isAsync, allowsDirectSuper); } else { - result = this._decodeChoice(input, options); + this.parseClassField(node); } - if (input.isError(result)) - return result; + return node + }; - // Decode children - if (!state.any && state.choice === null && state.children !== null) { - state.children.forEach(function decodeChildren(child) { - // NOTE: We are ignoring errors here, to let parser continue with other - // parts of encoded data - child._decode(input, options); - }); + pp$8.isClassElementNameStart = function() { + return ( + this.type === types$1.name || + this.type === types$1.privateId || + this.type === types$1.num || + this.type === types$1.string || + this.type === types$1.bracketL || + this.type.keyword + ) + }; + + pp$8.parseClassElementName = function(element) { + if (this.type === types$1.privateId) { + if (this.value === "constructor") { + this.raise(this.start, "Classes can't have an element named '#constructor'"); + } + element.computed = false; + element.key = this.parsePrivateIdent(); + } else { + this.parsePropertyName(element); } + }; - // Decode contained/encoded by schema, only in bit or octet strings - if (state.contains && (state.tag === 'octstr' || state.tag === 'bitstr')) { - const data = new DecoderBuffer(result); - result = this._getUse(state.contains, input._reporterState.obj) - ._decode(data, options); + pp$8.parseClassMethod = function(method, isGenerator, isAsync, allowsDirectSuper) { + // Check key and flags + var key = method.key; + if (method.kind === "constructor") { + if (isGenerator) { this.raise(key.start, "Constructor can't be a generator"); } + if (isAsync) { this.raise(key.start, "Constructor can't be an async method"); } + } else if (method.static && checkKeyName(method, "prototype")) { + this.raise(key.start, "Classes may not have a static property named prototype"); } - } - // Pop object - if (state.obj && present) - result = input.leaveObject(prevObj); + // Parse value + var value = method.value = this.parseMethod(isGenerator, isAsync, allowsDirectSuper); - // Set key - if (state.key !== null && (result !== null || present === true)) - input.leaveKey(prevKey, state.key, result); - else if (prevKey !== null) - input.exitKey(prevKey); + // Check value + if (method.kind === "get" && value.params.length !== 0) + { this.raiseRecoverable(value.start, "getter should have no params"); } + if (method.kind === "set" && value.params.length !== 1) + { this.raiseRecoverable(value.start, "setter should have exactly one param"); } + if (method.kind === "set" && value.params[0].type === "RestElement") + { this.raiseRecoverable(value.params[0].start, "Setter cannot use rest params"); } - return result; -}; + return this.finishNode(method, "MethodDefinition") + }; -Node.prototype._decodeGeneric = function decodeGeneric(tag, input, options) { - const state = this._baseState; + pp$8.parseClassField = function(field) { + if (checkKeyName(field, "constructor")) { + this.raise(field.key.start, "Classes can't have a field named 'constructor'"); + } else if (field.static && checkKeyName(field, "prototype")) { + this.raise(field.key.start, "Classes can't have a static field named 'prototype'"); + } - if (tag === 'seq' || tag === 'set') - return null; - if (tag === 'seqof' || tag === 'setof') - return this._decodeList(input, tag, state.args[0], options); - else if (/str$/.test(tag)) - return this._decodeStr(input, tag, options); - else if (tag === 'objid' && state.args) - return this._decodeObjid(input, state.args[0], state.args[1], options); - else if (tag === 'objid') - return this._decodeObjid(input, null, null, options); - else if (tag === 'gentime' || tag === 'utctime') - return this._decodeTime(input, tag, options); - else if (tag === 'null_') - return this._decodeNull(input, options); - else if (tag === 'bool') - return this._decodeBool(input, options); - else if (tag === 'objDesc') - return this._decodeStr(input, tag, options); - else if (tag === 'int' || tag === 'enum') - return this._decodeInt(input, state.args && state.args[0], options); + if (this.eat(types$1.eq)) { + // To raise SyntaxError if 'arguments' exists in the initializer. + var scope = this.currentThisScope(); + var inClassFieldInit = scope.inClassFieldInit; + scope.inClassFieldInit = true; + field.value = this.parseMaybeAssign(); + scope.inClassFieldInit = inClassFieldInit; + } else { + field.value = null; + } + this.semicolon(); - if (state.use !== null) { - return this._getUse(state.use, input._reporterState.obj) - ._decode(input, options); - } else { - return input.error('unknown tag: ' + tag); - } -}; + return this.finishNode(field, "PropertyDefinition") + }; -Node.prototype._getUse = function _getUse(entity, obj) { + pp$8.parseClassStaticBlock = function(node) { + node.body = []; - const state = this._baseState; - // Create altered use decoder if implicit is set - state.useDecoder = this._use(entity, obj); - assert(state.useDecoder._baseState.parent === null); - state.useDecoder = state.useDecoder._baseState.children[0]; - if (state.implicit !== state.useDecoder._baseState.implicit) { - state.useDecoder = state.useDecoder.clone(); - state.useDecoder._baseState.implicit = state.implicit; - } - return state.useDecoder; -}; + var oldLabels = this.labels; + this.labels = []; + this.enterScope(SCOPE_CLASS_STATIC_BLOCK | SCOPE_SUPER); + while (this.type !== types$1.braceR) { + var stmt = this.parseStatement(null); + node.body.push(stmt); + } + this.next(); + this.exitScope(); + this.labels = oldLabels; -Node.prototype._decodeChoice = function decodeChoice(input, options) { - const state = this._baseState; - let result = null; - let match = false; - - Object.keys(state.choice).some(function(key) { - const save = input.save(); - const node = state.choice[key]; - try { - const value = node._decode(input, options); - if (input.isError(value)) - return false; + return this.finishNode(node, "StaticBlock") + }; - result = { type: key, value: value }; - match = true; - } catch (e) { - input.restore(save); - return false; + pp$8.parseClassId = function(node, isStatement) { + if (this.type === types$1.name) { + node.id = this.parseIdent(); + if (isStatement) + { this.checkLValSimple(node.id, BIND_LEXICAL, false); } + } else { + if (isStatement === true) + { this.unexpected(); } + node.id = null; } - return true; - }, this); - - if (!match) - return input.error('Choice not matched'); + }; - return result; -}; + pp$8.parseClassSuper = function(node) { + node.superClass = this.eat(types$1._extends) ? this.parseExprSubscripts(false) : null; + }; -// -// Encoding -// + pp$8.enterClassBody = function() { + var element = {declared: Object.create(null), used: []}; + this.privateNameStack.push(element); + return element.declared + }; -Node.prototype._createEncoderBuffer = function createEncoderBuffer(data) { - return new EncoderBuffer(data, this.reporter); -}; + pp$8.exitClassBody = function() { + var ref = this.privateNameStack.pop(); + var declared = ref.declared; + var used = ref.used; + var len = this.privateNameStack.length; + var parent = len === 0 ? null : this.privateNameStack[len - 1]; + for (var i = 0; i < used.length; ++i) { + var id = used[i]; + if (!hasOwn(declared, id.name)) { + if (parent) { + parent.used.push(id); + } else { + this.raiseRecoverable(id.start, ("Private field '#" + (id.name) + "' must be declared in an enclosing class")); + } + } + } + }; -Node.prototype._encode = function encode(data, reporter, parent) { - const state = this._baseState; - if (state['default'] !== null && state['default'] === data) - return; + function isPrivateNameConflicted(privateNameMap, element) { + var name = element.key.name; + var curr = privateNameMap[name]; - const result = this._encodeValue(data, reporter, parent); - if (result === undefined) - return; + var next = "true"; + if (element.type === "MethodDefinition" && (element.kind === "get" || element.kind === "set")) { + next = (element.static ? "s" : "i") + element.kind; + } - if (this._skipDefault(result, reporter, parent)) - return; + // `class { get #a(){}; static set #a(_){} }` is also conflict. + if ( + curr === "iget" && next === "iset" || + curr === "iset" && next === "iget" || + curr === "sget" && next === "sset" || + curr === "sset" && next === "sget" + ) { + privateNameMap[name] = "true"; + return false + } else if (!curr) { + privateNameMap[name] = next; + return false + } else { + return true + } + } - return result; -}; + function checkKeyName(node, name) { + var computed = node.computed; + var key = node.key; + return !computed && ( + key.type === "Identifier" && key.name === name || + key.type === "Literal" && key.value === name + ) + } -Node.prototype._encodeValue = function encode(data, reporter, parent) { - const state = this._baseState; + // Parses module export declaration. - // Decode root node - if (state.parent === null) - return state.children[0]._encode(data, reporter || new Reporter()); + pp$8.parseExport = function(node, exports) { + this.next(); + // export * from '...' + if (this.eat(types$1.star)) { + if (this.options.ecmaVersion >= 11) { + if (this.eatContextual("as")) { + node.exported = this.parseModuleExportName(); + this.checkExport(exports, node.exported.name, this.lastTokStart); + } else { + node.exported = null; + } + } + this.expectContextual("from"); + if (this.type !== types$1.string) { this.unexpected(); } + node.source = this.parseExprAtom(); + this.semicolon(); + return this.finishNode(node, "ExportAllDeclaration") + } + if (this.eat(types$1._default)) { // export default ... + this.checkExport(exports, "default", this.lastTokStart); + var isAsync; + if (this.type === types$1._function || (isAsync = this.isAsyncFunction())) { + var fNode = this.startNode(); + this.next(); + if (isAsync) { this.next(); } + node.declaration = this.parseFunction(fNode, FUNC_STATEMENT | FUNC_NULLABLE_ID, false, isAsync); + } else if (this.type === types$1._class) { + var cNode = this.startNode(); + node.declaration = this.parseClass(cNode, "nullableID"); + } else { + node.declaration = this.parseMaybeAssign(); + this.semicolon(); + } + return this.finishNode(node, "ExportDefaultDeclaration") + } + // export var|const|let|function|class ... + if (this.shouldParseExportStatement()) { + node.declaration = this.parseStatement(null); + if (node.declaration.type === "VariableDeclaration") + { this.checkVariableExport(exports, node.declaration.declarations); } + else + { this.checkExport(exports, node.declaration.id.name, node.declaration.id.start); } + node.specifiers = []; + node.source = null; + } else { // export { x, y as z } [from '...'] + node.declaration = null; + node.specifiers = this.parseExportSpecifiers(exports); + if (this.eatContextual("from")) { + if (this.type !== types$1.string) { this.unexpected(); } + node.source = this.parseExprAtom(); + } else { + for (var i = 0, list = node.specifiers; i < list.length; i += 1) { + // check for keywords used as local names + var spec = list[i]; - let result = null; + this.checkUnreserved(spec.local); + // check if export is defined + this.checkLocalExport(spec.local); - // Set reporter to share it with a child class - this.reporter = reporter; + if (spec.local.type === "Literal") { + this.raise(spec.local.start, "A string literal cannot be used as an exported binding without `from`."); + } + } - // Check if data is there - if (state.optional && data === undefined) { - if (state['default'] !== null) - data = state['default']; - else - return; - } + node.source = null; + } + this.semicolon(); + } + return this.finishNode(node, "ExportNamedDeclaration") + }; - // Encode children first - let content = null; - let primitive = false; - if (state.any) { - // Anything that was given is translated to buffer - result = this._createEncoderBuffer(data); - } else if (state.choice) { - result = this._encodeChoice(data, reporter); - } else if (state.contains) { - content = this._getUse(state.contains, parent)._encode(data, reporter); - primitive = true; - } else if (state.children) { - content = state.children.map(function(child) { - if (child._baseState.tag === 'null_') - return child._encode(null, reporter, data); + pp$8.checkExport = function(exports, name, pos) { + if (!exports) { return } + if (hasOwn(exports, name)) + { this.raiseRecoverable(pos, "Duplicate export '" + name + "'"); } + exports[name] = true; + }; - if (child._baseState.key === null) - return reporter.error('Child should have a key'); - const prevKey = reporter.enterKey(child._baseState.key); + pp$8.checkPatternExport = function(exports, pat) { + var type = pat.type; + if (type === "Identifier") + { this.checkExport(exports, pat.name, pat.start); } + else if (type === "ObjectPattern") + { for (var i = 0, list = pat.properties; i < list.length; i += 1) + { + var prop = list[i]; + + this.checkPatternExport(exports, prop); + } } + else if (type === "ArrayPattern") + { for (var i$1 = 0, list$1 = pat.elements; i$1 < list$1.length; i$1 += 1) { + var elt = list$1[i$1]; + + if (elt) { this.checkPatternExport(exports, elt); } + } } + else if (type === "Property") + { this.checkPatternExport(exports, pat.value); } + else if (type === "AssignmentPattern") + { this.checkPatternExport(exports, pat.left); } + else if (type === "RestElement") + { this.checkPatternExport(exports, pat.argument); } + else if (type === "ParenthesizedExpression") + { this.checkPatternExport(exports, pat.expression); } + }; - if (typeof data !== 'object') - return reporter.error('Child expected, but input is not object'); + pp$8.checkVariableExport = function(exports, decls) { + if (!exports) { return } + for (var i = 0, list = decls; i < list.length; i += 1) + { + var decl = list[i]; - const res = child._encode(data[child._baseState.key], reporter, data); - reporter.leaveKey(prevKey); + this.checkPatternExport(exports, decl.id); + } + }; - return res; - }, this).filter(function(child) { - return child; - }); - content = this._createEncoderBuffer(content); - } else { - if (state.tag === 'seqof' || state.tag === 'setof') { - // TODO(indutny): this should be thrown on DSL level - if (!(state.args && state.args.length === 1)) - return reporter.error('Too many args for : ' + state.tag); + pp$8.shouldParseExportStatement = function() { + return this.type.keyword === "var" || + this.type.keyword === "const" || + this.type.keyword === "class" || + this.type.keyword === "function" || + this.isLet() || + this.isAsyncFunction() + }; - if (!Array.isArray(data)) - return reporter.error('seqof/setof, but data is not Array'); + // Parses a comma-separated list of module exports. + + pp$8.parseExportSpecifiers = function(exports) { + var nodes = [], first = true; + // export { x, y as z } [from '...'] + this.expect(types$1.braceL); + while (!this.eat(types$1.braceR)) { + if (!first) { + this.expect(types$1.comma); + if (this.afterTrailingComma(types$1.braceR)) { break } + } else { first = false; } + + var node = this.startNode(); + node.local = this.parseModuleExportName(); + node.exported = this.eatContextual("as") ? this.parseModuleExportName() : node.local; + this.checkExport( + exports, + node.exported[node.exported.type === "Identifier" ? "name" : "value"], + node.exported.start + ); + nodes.push(this.finishNode(node, "ExportSpecifier")); + } + return nodes + }; - const child = this.clone(); - child._baseState.implicit = null; - content = this._createEncoderBuffer(data.map(function(item) { - const state = this._baseState; + // Parses import declaration. - return this._getUse(state.args[0], data)._encode(item, reporter); - }, child)); - } else if (state.use !== null) { - result = this._getUse(state.use, parent)._encode(data, reporter); + pp$8.parseImport = function(node) { + this.next(); + // import '...' + if (this.type === types$1.string) { + node.specifiers = empty$1; + node.source = this.parseExprAtom(); } else { - content = this._encodePrimitive(state.tag, data); - primitive = true; + node.specifiers = this.parseImportSpecifiers(); + this.expectContextual("from"); + node.source = this.type === types$1.string ? this.parseExprAtom() : this.unexpected(); } - } + this.semicolon(); + return this.finishNode(node, "ImportDeclaration") + }; - // Encode data itself - if (!state.any && state.choice === null) { - const tag = state.implicit !== null ? state.implicit : state.tag; - const cls = state.implicit === null ? 'universal' : 'context'; + // Parses a comma-separated list of module imports. + + pp$8.parseImportSpecifiers = function() { + var nodes = [], first = true; + if (this.type === types$1.name) { + // import defaultObj, { x, y as z } from '...' + var node = this.startNode(); + node.local = this.parseIdent(); + this.checkLValSimple(node.local, BIND_LEXICAL); + nodes.push(this.finishNode(node, "ImportDefaultSpecifier")); + if (!this.eat(types$1.comma)) { return nodes } + } + if (this.type === types$1.star) { + var node$1 = this.startNode(); + this.next(); + this.expectContextual("as"); + node$1.local = this.parseIdent(); + this.checkLValSimple(node$1.local, BIND_LEXICAL); + nodes.push(this.finishNode(node$1, "ImportNamespaceSpecifier")); + return nodes + } + this.expect(types$1.braceL); + while (!this.eat(types$1.braceR)) { + if (!first) { + this.expect(types$1.comma); + if (this.afterTrailingComma(types$1.braceR)) { break } + } else { first = false; } + + var node$2 = this.startNode(); + node$2.imported = this.parseModuleExportName(); + if (this.eatContextual("as")) { + node$2.local = this.parseIdent(); + } else { + this.checkUnreserved(node$2.imported); + node$2.local = node$2.imported; + } + this.checkLValSimple(node$2.local, BIND_LEXICAL); + nodes.push(this.finishNode(node$2, "ImportSpecifier")); + } + return nodes + }; - if (tag === null) { - if (state.use === null) - reporter.error('Tag could be omitted only for .use()'); - } else { - if (state.use === null) - result = this._encodeComposite(tag, primitive, cls, content); + pp$8.parseModuleExportName = function() { + if (this.options.ecmaVersion >= 13 && this.type === types$1.string) { + var stringLiteral = this.parseLiteral(this.value); + if (loneSurrogate.test(stringLiteral.value)) { + this.raise(stringLiteral.start, "An export name cannot include a lone surrogate."); + } + return stringLiteral } - } + return this.parseIdent(true) + }; - // Wrap in explicit - if (state.explicit !== null) - result = this._encodeComposite(state.explicit, false, 'context', result); + // Set `ExpressionStatement#directive` property for directive prologues. + pp$8.adaptDirectivePrologue = function(statements) { + for (var i = 0; i < statements.length && this.isDirectiveCandidate(statements[i]); ++i) { + statements[i].directive = statements[i].expression.raw.slice(1, -1); + } + }; + pp$8.isDirectiveCandidate = function(statement) { + return ( + statement.type === "ExpressionStatement" && + statement.expression.type === "Literal" && + typeof statement.expression.value === "string" && + // Reject parenthesized strings. + (this.input[statement.start] === "\"" || this.input[statement.start] === "'") + ) + }; - return result; -}; + var pp$7 = Parser.prototype; -Node.prototype._encodeChoice = function encodeChoice(data, reporter) { - const state = this._baseState; + // Convert existing expression atom to assignable pattern + // if possible. - const node = state.choice[data.type]; - if (!node) { - assert( - false, - data.type + ' not found in ' + - JSON.stringify(Object.keys(state.choice))); - } - return node._encode(data.value, reporter); -}; + pp$7.toAssignable = function(node, isBinding, refDestructuringErrors) { + if (this.options.ecmaVersion >= 6 && node) { + switch (node.type) { + case "Identifier": + if (this.inAsync && node.name === "await") + { this.raise(node.start, "Cannot use 'await' as identifier inside an async function"); } + break -Node.prototype._encodePrimitive = function encodePrimitive(tag, data) { - const state = this._baseState; + case "ObjectPattern": + case "ArrayPattern": + case "AssignmentPattern": + case "RestElement": + break - if (/str$/.test(tag)) - return this._encodeStr(data, tag); - else if (tag === 'objid' && state.args) - return this._encodeObjid(data, state.reverseArgs[0], state.args[1]); - else if (tag === 'objid') - return this._encodeObjid(data, null, null); - else if (tag === 'gentime' || tag === 'utctime') - return this._encodeTime(data, tag); - else if (tag === 'null_') - return this._encodeNull(); - else if (tag === 'int' || tag === 'enum') - return this._encodeInt(data, state.args && state.reverseArgs[0]); - else if (tag === 'bool') - return this._encodeBool(data); - else if (tag === 'objDesc') - return this._encodeStr(data, tag); - else - throw new Error('Unsupported tag: ' + tag); -}; + case "ObjectExpression": + node.type = "ObjectPattern"; + if (refDestructuringErrors) { this.checkPatternErrors(refDestructuringErrors, true); } + for (var i = 0, list = node.properties; i < list.length; i += 1) { + var prop = list[i]; + + this.toAssignable(prop, isBinding); + // Early error: + // AssignmentRestProperty[Yield, Await] : + // `...` DestructuringAssignmentTarget[Yield, Await] + // + // It is a Syntax Error if |DestructuringAssignmentTarget| is an |ArrayLiteral| or an |ObjectLiteral|. + if ( + prop.type === "RestElement" && + (prop.argument.type === "ArrayPattern" || prop.argument.type === "ObjectPattern") + ) { + this.raise(prop.argument.start, "Unexpected token"); + } + } + break -Node.prototype._isNumstr = function isNumstr(str) { - return /^[0-9 ]*$/.test(str); -}; + case "Property": + // AssignmentProperty has type === "Property" + if (node.kind !== "init") { this.raise(node.key.start, "Object pattern can't contain getter or setter"); } + this.toAssignable(node.value, isBinding); + break -Node.prototype._isPrintstr = function isPrintstr(str) { - return /^[A-Za-z0-9 '()+,-./:=?]*$/.test(str); -}; + case "ArrayExpression": + node.type = "ArrayPattern"; + if (refDestructuringErrors) { this.checkPatternErrors(refDestructuringErrors, true); } + this.toAssignableList(node.elements, isBinding); + break + case "SpreadElement": + node.type = "RestElement"; + this.toAssignable(node.argument, isBinding); + if (node.argument.type === "AssignmentPattern") + { this.raise(node.argument.start, "Rest elements cannot have a default value"); } + break -/***/ }), + case "AssignmentExpression": + if (node.operator !== "=") { this.raise(node.left.end, "Only '=' operator can be used for specifying default value."); } + node.type = "AssignmentPattern"; + delete node.operator; + this.toAssignable(node.left, isBinding); + break -/***/ 3744: -/***/ ((__unused_webpack_module, exports, __nccwpck_require__) => { + case "ParenthesizedExpression": + this.toAssignable(node.expression, isBinding, refDestructuringErrors); + break -"use strict"; + case "ChainExpression": + this.raiseRecoverable(node.start, "Optional chaining cannot appear in left-hand side"); + break + case "MemberExpression": + if (!isBinding) { break } -const inherits = __nccwpck_require__(4124); + default: + this.raise(node.start, "Assigning to rvalue"); + } + } else if (refDestructuringErrors) { this.checkPatternErrors(refDestructuringErrors, true); } + return node + }; -function Reporter(options) { - this._reporterState = { - obj: null, - path: [], - options: options || {}, - errors: [] + // Convert list of expression atoms to binding list. + + pp$7.toAssignableList = function(exprList, isBinding) { + var end = exprList.length; + for (var i = 0; i < end; i++) { + var elt = exprList[i]; + if (elt) { this.toAssignable(elt, isBinding); } + } + if (end) { + var last = exprList[end - 1]; + if (this.options.ecmaVersion === 6 && isBinding && last && last.type === "RestElement" && last.argument.type !== "Identifier") + { this.unexpected(last.argument.start); } + } + return exprList }; -} -exports.b = Reporter; -Reporter.prototype.isError = function isError(obj) { - return obj instanceof ReporterError; -}; + // Parses spread element. -Reporter.prototype.save = function save() { - const state = this._reporterState; + pp$7.parseSpread = function(refDestructuringErrors) { + var node = this.startNode(); + this.next(); + node.argument = this.parseMaybeAssign(false, refDestructuringErrors); + return this.finishNode(node, "SpreadElement") + }; - return { obj: state.obj, pathLen: state.path.length }; -}; + pp$7.parseRestBinding = function() { + var node = this.startNode(); + this.next(); -Reporter.prototype.restore = function restore(data) { - const state = this._reporterState; + // RestElement inside of a function parameter must be an identifier + if (this.options.ecmaVersion === 6 && this.type !== types$1.name) + { this.unexpected(); } - state.obj = data.obj; - state.path = state.path.slice(0, data.pathLen); -}; + node.argument = this.parseBindingAtom(); -Reporter.prototype.enterKey = function enterKey(key) { - return this._reporterState.path.push(key); -}; - -Reporter.prototype.exitKey = function exitKey(index) { - const state = this._reporterState; + return this.finishNode(node, "RestElement") + }; - state.path = state.path.slice(0, index - 1); -}; + // Parses lvalue (assignable) atom. -Reporter.prototype.leaveKey = function leaveKey(index, key, value) { - const state = this._reporterState; + pp$7.parseBindingAtom = function() { + if (this.options.ecmaVersion >= 6) { + switch (this.type) { + case types$1.bracketL: + var node = this.startNode(); + this.next(); + node.elements = this.parseBindingList(types$1.bracketR, true, true); + return this.finishNode(node, "ArrayPattern") - this.exitKey(index); - if (state.obj !== null) - state.obj[key] = value; -}; + case types$1.braceL: + return this.parseObj(true) + } + } + return this.parseIdent() + }; -Reporter.prototype.path = function path() { - return this._reporterState.path.join('/'); -}; + pp$7.parseBindingList = function(close, allowEmpty, allowTrailingComma) { + var elts = [], first = true; + while (!this.eat(close)) { + if (first) { first = false; } + else { this.expect(types$1.comma); } + if (allowEmpty && this.type === types$1.comma) { + elts.push(null); + } else if (allowTrailingComma && this.afterTrailingComma(close)) { + break + } else if (this.type === types$1.ellipsis) { + var rest = this.parseRestBinding(); + this.parseBindingListItem(rest); + elts.push(rest); + if (this.type === types$1.comma) { this.raise(this.start, "Comma is not permitted after the rest element"); } + this.expect(close); + break + } else { + var elem = this.parseMaybeDefault(this.start, this.startLoc); + this.parseBindingListItem(elem); + elts.push(elem); + } + } + return elts + }; -Reporter.prototype.enterObject = function enterObject() { - const state = this._reporterState; + pp$7.parseBindingListItem = function(param) { + return param + }; - const prev = state.obj; - state.obj = {}; - return prev; -}; + // Parses assignment pattern around given atom if possible. -Reporter.prototype.leaveObject = function leaveObject(prev) { - const state = this._reporterState; + pp$7.parseMaybeDefault = function(startPos, startLoc, left) { + left = left || this.parseBindingAtom(); + if (this.options.ecmaVersion < 6 || !this.eat(types$1.eq)) { return left } + var node = this.startNodeAt(startPos, startLoc); + node.left = left; + node.right = this.parseMaybeAssign(); + return this.finishNode(node, "AssignmentPattern") + }; - const now = state.obj; - state.obj = prev; - return now; -}; + // The following three functions all verify that a node is an lvalue — + // something that can be bound, or assigned to. In order to do so, they perform + // a variety of checks: + // + // - Check that none of the bound/assigned-to identifiers are reserved words. + // - Record name declarations for bindings in the appropriate scope. + // - Check duplicate argument names, if checkClashes is set. + // + // If a complex binding pattern is encountered (e.g., object and array + // destructuring), the entire pattern is recursively checked. + // + // There are three versions of checkLVal*() appropriate for different + // circumstances: + // + // - checkLValSimple() shall be used if the syntactic construct supports + // nothing other than identifiers and member expressions. Parenthesized + // expressions are also correctly handled. This is generally appropriate for + // constructs for which the spec says + // + // > It is a Syntax Error if AssignmentTargetType of [the production] is not + // > simple. + // + // It is also appropriate for checking if an identifier is valid and not + // defined elsewhere, like import declarations or function/class identifiers. + // + // Examples where this is used include: + // a += …; + // import a from '…'; + // where a is the node to be checked. + // + // - checkLValPattern() shall be used if the syntactic construct supports + // anything checkLValSimple() supports, as well as object and array + // destructuring patterns. This is generally appropriate for constructs for + // which the spec says + // + // > It is a Syntax Error if [the production] is neither an ObjectLiteral nor + // > an ArrayLiteral and AssignmentTargetType of [the production] is not + // > simple. + // + // Examples where this is used include: + // (a = …); + // const a = …; + // try { … } catch (a) { … } + // where a is the node to be checked. + // + // - checkLValInnerPattern() shall be used if the syntactic construct supports + // anything checkLValPattern() supports, as well as default assignment + // patterns, rest elements, and other constructs that may appear within an + // object or array destructuring pattern. + // + // As a special case, function parameters also use checkLValInnerPattern(), + // as they also support defaults and rest constructs. + // + // These functions deliberately support both assignment and binding constructs, + // as the logic for both is exceedingly similar. If the node is the target of + // an assignment, then bindingType should be set to BIND_NONE. Otherwise, it + // should be set to the appropriate BIND_* constant, like BIND_VAR or + // BIND_LEXICAL. + // + // If the function is called with a non-BIND_NONE bindingType, then + // additionally a checkClashes object may be specified to allow checking for + // duplicate argument names. checkClashes is ignored if the provided construct + // is an assignment (i.e., bindingType is BIND_NONE). + + pp$7.checkLValSimple = function(expr, bindingType, checkClashes) { + if ( bindingType === void 0 ) bindingType = BIND_NONE; + + var isBind = bindingType !== BIND_NONE; + + switch (expr.type) { + case "Identifier": + if (this.strict && this.reservedWordsStrictBind.test(expr.name)) + { this.raiseRecoverable(expr.start, (isBind ? "Binding " : "Assigning to ") + expr.name + " in strict mode"); } + if (isBind) { + if (bindingType === BIND_LEXICAL && expr.name === "let") + { this.raiseRecoverable(expr.start, "let is disallowed as a lexically bound name"); } + if (checkClashes) { + if (hasOwn(checkClashes, expr.name)) + { this.raiseRecoverable(expr.start, "Argument name clash"); } + checkClashes[expr.name] = true; + } + if (bindingType !== BIND_OUTSIDE) { this.declareName(expr.name, bindingType, expr.start); } + } + break -Reporter.prototype.error = function error(msg) { - let err; - const state = this._reporterState; + case "ChainExpression": + this.raiseRecoverable(expr.start, "Optional chaining cannot appear in left-hand side"); + break - const inherited = msg instanceof ReporterError; - if (inherited) { - err = msg; - } else { - err = new ReporterError(state.path.map(function(elem) { - return '[' + JSON.stringify(elem) + ']'; - }).join(''), msg.message || msg, msg.stack); - } + case "MemberExpression": + if (isBind) { this.raiseRecoverable(expr.start, "Binding member expression"); } + break - if (!state.options.partial) - throw err; + case "ParenthesizedExpression": + if (isBind) { this.raiseRecoverable(expr.start, "Binding parenthesized expression"); } + return this.checkLValSimple(expr.expression, bindingType, checkClashes) - if (!inherited) - state.errors.push(err); + default: + this.raise(expr.start, (isBind ? "Binding" : "Assigning to") + " rvalue"); + } + }; - return err; -}; + pp$7.checkLValPattern = function(expr, bindingType, checkClashes) { + if ( bindingType === void 0 ) bindingType = BIND_NONE; -Reporter.prototype.wrapResult = function wrapResult(result) { - const state = this._reporterState; - if (!state.options.partial) - return result; + switch (expr.type) { + case "ObjectPattern": + for (var i = 0, list = expr.properties; i < list.length; i += 1) { + var prop = list[i]; - return { - result: this.isError(result) ? null : result, - errors: state.errors - }; -}; + this.checkLValInnerPattern(prop, bindingType, checkClashes); + } + break -function ReporterError(path, msg) { - this.path = path; - this.rethrow(msg); -} -inherits(ReporterError, Error); + case "ArrayPattern": + for (var i$1 = 0, list$1 = expr.elements; i$1 < list$1.length; i$1 += 1) { + var elem = list$1[i$1]; -ReporterError.prototype.rethrow = function rethrow(msg) { - this.message = msg + ' at: ' + (this.path || '(shallow)'); - if (Error.captureStackTrace) - Error.captureStackTrace(this, ReporterError); + if (elem) { this.checkLValInnerPattern(elem, bindingType, checkClashes); } + } + break - if (!this.stack) { - try { - // IE only adds stack when thrown - throw new Error(this.message); - } catch (e) { - this.stack = e.stack; + default: + this.checkLValSimple(expr, bindingType, checkClashes); } - } - return this; -}; + }; + pp$7.checkLValInnerPattern = function(expr, bindingType, checkClashes) { + if ( bindingType === void 0 ) bindingType = BIND_NONE; -/***/ }), + switch (expr.type) { + case "Property": + // AssignmentProperty has type === "Property" + this.checkLValInnerPattern(expr.value, bindingType, checkClashes); + break -/***/ 1188: -/***/ ((__unused_webpack_module, exports) => { + case "AssignmentPattern": + this.checkLValPattern(expr.left, bindingType, checkClashes); + break -"use strict"; + case "RestElement": + this.checkLValPattern(expr.argument, bindingType, checkClashes); + break + default: + this.checkLValPattern(expr, bindingType, checkClashes); + } + }; -// Helper -function reverse(map) { - const res = {}; + // The algorithm used to determine whether a regexp can appear at a - Object.keys(map).forEach(function(key) { - // Convert key to integer if it is stringified - if ((key | 0) == key) - key = key | 0; + var TokContext = function TokContext(token, isExpr, preserveSpace, override, generator) { + this.token = token; + this.isExpr = !!isExpr; + this.preserveSpace = !!preserveSpace; + this.override = override; + this.generator = !!generator; + }; - const value = map[key]; - res[value] = key; - }); + var types = { + b_stat: new TokContext("{", false), + b_expr: new TokContext("{", true), + b_tmpl: new TokContext("${", false), + p_stat: new TokContext("(", false), + p_expr: new TokContext("(", true), + q_tmpl: new TokContext("`", true, true, function (p) { return p.tryReadTemplateToken(); }), + f_stat: new TokContext("function", false), + f_expr: new TokContext("function", true), + f_expr_gen: new TokContext("function", true, false, null, true), + f_gen: new TokContext("function", false, false, null, true) + }; - return res; -} + var pp$6 = Parser.prototype; -exports.tagClass = { - 0: 'universal', - 1: 'application', - 2: 'context', - 3: 'private' -}; -exports.tagClassByName = reverse(exports.tagClass); + pp$6.initialContext = function() { + return [types.b_stat] + }; -exports.tag = { - 0x00: 'end', - 0x01: 'bool', - 0x02: 'int', - 0x03: 'bitstr', - 0x04: 'octstr', - 0x05: 'null_', - 0x06: 'objid', - 0x07: 'objDesc', - 0x08: 'external', - 0x09: 'real', - 0x0a: 'enum', - 0x0b: 'embed', - 0x0c: 'utf8str', - 0x0d: 'relativeOid', - 0x10: 'seq', - 0x11: 'set', - 0x12: 'numstr', - 0x13: 'printstr', - 0x14: 't61str', - 0x15: 'videostr', - 0x16: 'ia5str', - 0x17: 'utctime', - 0x18: 'gentime', - 0x19: 'graphstr', - 0x1a: 'iso646str', - 0x1b: 'genstr', - 0x1c: 'unistr', - 0x1d: 'charstr', - 0x1e: 'bmpstr' -}; -exports.tagByName = reverse(exports.tag); + pp$6.curContext = function() { + return this.context[this.context.length - 1] + }; + pp$6.braceIsBlock = function(prevType) { + var parent = this.curContext(); + if (parent === types.f_expr || parent === types.f_stat) + { return true } + if (prevType === types$1.colon && (parent === types.b_stat || parent === types.b_expr)) + { return !parent.isExpr } + + // The check for `tt.name && exprAllowed` detects whether we are + // after a `yield` or `of` construct. See the `updateContext` for + // `tt.name`. + if (prevType === types$1._return || prevType === types$1.name && this.exprAllowed) + { return lineBreak.test(this.input.slice(this.lastTokEnd, this.start)) } + if (prevType === types$1._else || prevType === types$1.semi || prevType === types$1.eof || prevType === types$1.parenR || prevType === types$1.arrow) + { return true } + if (prevType === types$1.braceL) + { return parent === types.b_stat } + if (prevType === types$1._var || prevType === types$1._const || prevType === types$1.name) + { return false } + return !this.exprAllowed + }; -/***/ }), + pp$6.inGeneratorContext = function() { + for (var i = this.context.length - 1; i >= 1; i--) { + var context = this.context[i]; + if (context.token === "function") + { return context.generator } + } + return false + }; -/***/ 3371: -/***/ ((__unused_webpack_module, exports, __nccwpck_require__) => { + pp$6.updateContext = function(prevType) { + var update, type = this.type; + if (type.keyword && prevType === types$1.dot) + { this.exprAllowed = false; } + else if (update = type.updateContext) + { update.call(this, prevType); } + else + { this.exprAllowed = type.beforeExpr; } + }; -"use strict"; + // Used to handle egde case when token context could not be inferred correctly in tokenize phase + pp$6.overrideContext = function(tokenCtx) { + if (this.curContext() !== tokenCtx) { + this.context[this.context.length - 1] = tokenCtx; + } + }; + // Token-specific context update code -const constants = exports; + types$1.parenR.updateContext = types$1.braceR.updateContext = function() { + if (this.context.length === 1) { + this.exprAllowed = true; + return + } + var out = this.context.pop(); + if (out === types.b_stat && this.curContext().token === "function") { + out = this.context.pop(); + } + this.exprAllowed = !out.isExpr; + }; -// Helper -constants._reverse = function reverse(map) { - const res = {}; + types$1.braceL.updateContext = function(prevType) { + this.context.push(this.braceIsBlock(prevType) ? types.b_stat : types.b_expr); + this.exprAllowed = true; + }; - Object.keys(map).forEach(function(key) { - // Convert key to integer if it is stringified - if ((key | 0) == key) - key = key | 0; + types$1.dollarBraceL.updateContext = function() { + this.context.push(types.b_tmpl); + this.exprAllowed = true; + }; - const value = map[key]; - res[value] = key; - }); + types$1.parenL.updateContext = function(prevType) { + var statementParens = prevType === types$1._if || prevType === types$1._for || prevType === types$1._with || prevType === types$1._while; + this.context.push(statementParens ? types.p_stat : types.p_expr); + this.exprAllowed = true; + }; - return res; -}; + types$1.incDec.updateContext = function() { + // tokExprAllowed stays unchanged + }; -constants.der = __nccwpck_require__(1188); + types$1._function.updateContext = types$1._class.updateContext = function(prevType) { + if (prevType.beforeExpr && prevType !== types$1._else && + !(prevType === types$1.semi && this.curContext() !== types.p_stat) && + !(prevType === types$1._return && lineBreak.test(this.input.slice(this.lastTokEnd, this.start))) && + !((prevType === types$1.colon || prevType === types$1.braceL) && this.curContext() === types.b_stat)) + { this.context.push(types.f_expr); } + else + { this.context.push(types.f_stat); } + this.exprAllowed = false; + }; + types$1.backQuote.updateContext = function() { + if (this.curContext() === types.q_tmpl) + { this.context.pop(); } + else + { this.context.push(types.q_tmpl); } + this.exprAllowed = false; + }; -/***/ }), + types$1.star.updateContext = function(prevType) { + if (prevType === types$1._function) { + var index = this.context.length - 1; + if (this.context[index] === types.f_expr) + { this.context[index] = types.f_expr_gen; } + else + { this.context[index] = types.f_gen; } + } + this.exprAllowed = true; + }; -/***/ 3332: -/***/ ((module, __unused_webpack_exports, __nccwpck_require__) => { + types$1.name.updateContext = function(prevType) { + var allowed = false; + if (this.options.ecmaVersion >= 6 && prevType !== types$1.dot) { + if (this.value === "of" && !this.exprAllowed || + this.value === "yield" && this.inGeneratorContext()) + { allowed = true; } + } + this.exprAllowed = allowed; + }; -"use strict"; + // A recursive descent parser operates by defining functions for all + + var pp$5 = Parser.prototype; + + // Check if property name clashes with already added. + // Object/class getters and setters are not allowed to clash — + // either with each other or with an init property — and in + // strict mode, init properties are also not allowed to be repeated. + + pp$5.checkPropClash = function(prop, propHash, refDestructuringErrors) { + if (this.options.ecmaVersion >= 9 && prop.type === "SpreadElement") + { return } + if (this.options.ecmaVersion >= 6 && (prop.computed || prop.method || prop.shorthand)) + { return } + var key = prop.key; + var name; + switch (key.type) { + case "Identifier": name = key.name; break + case "Literal": name = String(key.value); break + default: return + } + var kind = prop.kind; + if (this.options.ecmaVersion >= 6) { + if (name === "__proto__" && kind === "init") { + if (propHash.proto) { + if (refDestructuringErrors) { + if (refDestructuringErrors.doubleProto < 0) { + refDestructuringErrors.doubleProto = key.start; + } + } else { + this.raiseRecoverable(key.start, "Redefinition of __proto__ property"); + } + } + propHash.proto = true; + } + return + } + name = "$" + name; + var other = propHash[name]; + if (other) { + var redefinition; + if (kind === "init") { + redefinition = this.strict && other.init || other.get || other.set; + } else { + redefinition = other.init || other[kind]; + } + if (redefinition) + { this.raiseRecoverable(key.start, "Redefinition of property"); } + } else { + other = propHash[name] = { + init: false, + get: false, + set: false + }; + } + other[kind] = true; + }; + // ### Expression parsing + + // These nest, from the most general expression type at the top to + // 'atomic', nondivisible expression types at the bottom. Most of + // the functions will simply let the function(s) below them parse, + // and, *if* the syntactic construct they handle is present, wrap + // the AST node that the inner parser gave them in another node. + + // Parse a full expression. The optional arguments are used to + // forbid the `in` operator (in for loops initalization expressions) + // and provide reference for storing '=' operator inside shorthand + // property assignment in contexts where both object expression + // and object pattern might appear (so it's possible to raise + // delayed syntax error at correct position). + + pp$5.parseExpression = function(forInit, refDestructuringErrors) { + var startPos = this.start, startLoc = this.startLoc; + var expr = this.parseMaybeAssign(forInit, refDestructuringErrors); + if (this.type === types$1.comma) { + var node = this.startNodeAt(startPos, startLoc); + node.expressions = [expr]; + while (this.eat(types$1.comma)) { node.expressions.push(this.parseMaybeAssign(forInit, refDestructuringErrors)); } + return this.finishNode(node, "SequenceExpression") + } + return expr + }; -const inherits = __nccwpck_require__(4124); + // Parse an assignment expression. This includes applications of + // operators like `+=`. -const bignum = __nccwpck_require__(6641); -const DecoderBuffer = (__nccwpck_require__(5298)/* .DecoderBuffer */ .C); -const Node = __nccwpck_require__(842); + pp$5.parseMaybeAssign = function(forInit, refDestructuringErrors, afterLeftParse) { + if (this.isContextual("yield")) { + if (this.inGenerator) { return this.parseYield(forInit) } + // The tokenizer will assume an expression is allowed after + // `yield`, but this isn't that kind of yield + else { this.exprAllowed = false; } + } -// Import DER constants -const der = __nccwpck_require__(1188); + var ownDestructuringErrors = false, oldParenAssign = -1, oldTrailingComma = -1, oldDoubleProto = -1; + if (refDestructuringErrors) { + oldParenAssign = refDestructuringErrors.parenthesizedAssign; + oldTrailingComma = refDestructuringErrors.trailingComma; + oldDoubleProto = refDestructuringErrors.doubleProto; + refDestructuringErrors.parenthesizedAssign = refDestructuringErrors.trailingComma = -1; + } else { + refDestructuringErrors = new DestructuringErrors; + ownDestructuringErrors = true; + } -function DERDecoder(entity) { - this.enc = 'der'; - this.name = entity.name; - this.entity = entity; + var startPos = this.start, startLoc = this.startLoc; + if (this.type === types$1.parenL || this.type === types$1.name) { + this.potentialArrowAt = this.start; + this.potentialArrowInForAwait = forInit === "await"; + } + var left = this.parseMaybeConditional(forInit, refDestructuringErrors); + if (afterLeftParse) { left = afterLeftParse.call(this, left, startPos, startLoc); } + if (this.type.isAssign) { + var node = this.startNodeAt(startPos, startLoc); + node.operator = this.value; + if (this.type === types$1.eq) + { left = this.toAssignable(left, false, refDestructuringErrors); } + if (!ownDestructuringErrors) { + refDestructuringErrors.parenthesizedAssign = refDestructuringErrors.trailingComma = refDestructuringErrors.doubleProto = -1; + } + if (refDestructuringErrors.shorthandAssign >= left.start) + { refDestructuringErrors.shorthandAssign = -1; } // reset because shorthand default was used correctly + if (this.type === types$1.eq) + { this.checkLValPattern(left); } + else + { this.checkLValSimple(left); } + node.left = left; + this.next(); + node.right = this.parseMaybeAssign(forInit); + if (oldDoubleProto > -1) { refDestructuringErrors.doubleProto = oldDoubleProto; } + return this.finishNode(node, "AssignmentExpression") + } else { + if (ownDestructuringErrors) { this.checkExpressionErrors(refDestructuringErrors, true); } + } + if (oldParenAssign > -1) { refDestructuringErrors.parenthesizedAssign = oldParenAssign; } + if (oldTrailingComma > -1) { refDestructuringErrors.trailingComma = oldTrailingComma; } + return left + }; - // Construct base tree - this.tree = new DERNode(); - this.tree._init(entity.body); -} -module.exports = DERDecoder; + // Parse a ternary conditional (`?:`) operator. + + pp$5.parseMaybeConditional = function(forInit, refDestructuringErrors) { + var startPos = this.start, startLoc = this.startLoc; + var expr = this.parseExprOps(forInit, refDestructuringErrors); + if (this.checkExpressionErrors(refDestructuringErrors)) { return expr } + if (this.eat(types$1.question)) { + var node = this.startNodeAt(startPos, startLoc); + node.test = expr; + node.consequent = this.parseMaybeAssign(); + this.expect(types$1.colon); + node.alternate = this.parseMaybeAssign(forInit); + return this.finishNode(node, "ConditionalExpression") + } + return expr + }; -DERDecoder.prototype.decode = function decode(data, options) { - if (!DecoderBuffer.isDecoderBuffer(data)) { - data = new DecoderBuffer(data, options); - } + // Start the precedence parser. - return this.tree._decode(data, options); -}; + pp$5.parseExprOps = function(forInit, refDestructuringErrors) { + var startPos = this.start, startLoc = this.startLoc; + var expr = this.parseMaybeUnary(refDestructuringErrors, false, false, forInit); + if (this.checkExpressionErrors(refDestructuringErrors)) { return expr } + return expr.start === startPos && expr.type === "ArrowFunctionExpression" ? expr : this.parseExprOp(expr, startPos, startLoc, -1, forInit) + }; -// Tree methods + // Parse binary operators with the operator precedence parsing + // algorithm. `left` is the left-hand side of the operator. + // `minPrec` provides context that allows the function to stop and + // defer further parser to one of its callers when it encounters an + // operator that has a lower precedence than the set it is parsing. + + pp$5.parseExprOp = function(left, leftStartPos, leftStartLoc, minPrec, forInit) { + var prec = this.type.binop; + if (prec != null && (!forInit || this.type !== types$1._in)) { + if (prec > minPrec) { + var logical = this.type === types$1.logicalOR || this.type === types$1.logicalAND; + var coalesce = this.type === types$1.coalesce; + if (coalesce) { + // Handle the precedence of `tt.coalesce` as equal to the range of logical expressions. + // In other words, `node.right` shouldn't contain logical expressions in order to check the mixed error. + prec = types$1.logicalAND.binop; + } + var op = this.value; + this.next(); + var startPos = this.start, startLoc = this.startLoc; + var right = this.parseExprOp(this.parseMaybeUnary(null, false, false, forInit), startPos, startLoc, prec, forInit); + var node = this.buildBinary(leftStartPos, leftStartLoc, left, right, op, logical || coalesce); + if ((logical && this.type === types$1.coalesce) || (coalesce && (this.type === types$1.logicalOR || this.type === types$1.logicalAND))) { + this.raiseRecoverable(this.start, "Logical expressions and coalesce expressions cannot be mixed. Wrap either by parentheses"); + } + return this.parseExprOp(node, leftStartPos, leftStartLoc, minPrec, forInit) + } + } + return left + }; -function DERNode(parent) { - Node.call(this, 'der', parent); -} -inherits(DERNode, Node); + pp$5.buildBinary = function(startPos, startLoc, left, right, op, logical) { + if (right.type === "PrivateIdentifier") { this.raise(right.start, "Private identifier can only be left side of binary expression"); } + var node = this.startNodeAt(startPos, startLoc); + node.left = left; + node.operator = op; + node.right = right; + return this.finishNode(node, logical ? "LogicalExpression" : "BinaryExpression") + }; -DERNode.prototype._peekTag = function peekTag(buffer, tag, any) { - if (buffer.isEmpty()) - return false; + // Parse unary operators, both prefix and postfix. + + pp$5.parseMaybeUnary = function(refDestructuringErrors, sawUnary, incDec, forInit) { + var startPos = this.start, startLoc = this.startLoc, expr; + if (this.isContextual("await") && this.canAwait) { + expr = this.parseAwait(forInit); + sawUnary = true; + } else if (this.type.prefix) { + var node = this.startNode(), update = this.type === types$1.incDec; + node.operator = this.value; + node.prefix = true; + this.next(); + node.argument = this.parseMaybeUnary(null, true, update, forInit); + this.checkExpressionErrors(refDestructuringErrors, true); + if (update) { this.checkLValSimple(node.argument); } + else if (this.strict && node.operator === "delete" && + node.argument.type === "Identifier") + { this.raiseRecoverable(node.start, "Deleting local variable in strict mode"); } + else if (node.operator === "delete" && isPrivateFieldAccess(node.argument)) + { this.raiseRecoverable(node.start, "Private fields can not be deleted"); } + else { sawUnary = true; } + expr = this.finishNode(node, update ? "UpdateExpression" : "UnaryExpression"); + } else if (!sawUnary && this.type === types$1.privateId) { + if (forInit || this.privateNameStack.length === 0) { this.unexpected(); } + expr = this.parsePrivateIdent(); + // only could be private fields in 'in', such as #x in obj + if (this.type !== types$1._in) { this.unexpected(); } + } else { + expr = this.parseExprSubscripts(refDestructuringErrors, forInit); + if (this.checkExpressionErrors(refDestructuringErrors)) { return expr } + while (this.type.postfix && !this.canInsertSemicolon()) { + var node$1 = this.startNodeAt(startPos, startLoc); + node$1.operator = this.value; + node$1.prefix = false; + node$1.argument = expr; + this.checkLValSimple(expr); + this.next(); + expr = this.finishNode(node$1, "UpdateExpression"); + } + } - const state = buffer.save(); - const decodedTag = derDecodeTag(buffer, 'Failed to peek tag: "' + tag + '"'); - if (buffer.isError(decodedTag)) - return decodedTag; + if (!incDec && this.eat(types$1.starstar)) { + if (sawUnary) + { this.unexpected(this.lastTokStart); } + else + { return this.buildBinary(startPos, startLoc, expr, this.parseMaybeUnary(null, false, false, forInit), "**", false) } + } else { + return expr + } + }; - buffer.restore(state); + function isPrivateFieldAccess(node) { + return ( + node.type === "MemberExpression" && node.property.type === "PrivateIdentifier" || + node.type === "ChainExpression" && isPrivateFieldAccess(node.expression) + ) + } - return decodedTag.tag === tag || decodedTag.tagStr === tag || - (decodedTag.tagStr + 'of') === tag || any; -}; + // Parse call, dot, and `[]`-subscript expressions. + + pp$5.parseExprSubscripts = function(refDestructuringErrors, forInit) { + var startPos = this.start, startLoc = this.startLoc; + var expr = this.parseExprAtom(refDestructuringErrors, forInit); + if (expr.type === "ArrowFunctionExpression" && this.input.slice(this.lastTokStart, this.lastTokEnd) !== ")") + { return expr } + var result = this.parseSubscripts(expr, startPos, startLoc, false, forInit); + if (refDestructuringErrors && result.type === "MemberExpression") { + if (refDestructuringErrors.parenthesizedAssign >= result.start) { refDestructuringErrors.parenthesizedAssign = -1; } + if (refDestructuringErrors.parenthesizedBind >= result.start) { refDestructuringErrors.parenthesizedBind = -1; } + if (refDestructuringErrors.trailingComma >= result.start) { refDestructuringErrors.trailingComma = -1; } + } + return result + }; -DERNode.prototype._decodeTag = function decodeTag(buffer, tag, any) { - const decodedTag = derDecodeTag(buffer, - 'Failed to decode tag of "' + tag + '"'); - if (buffer.isError(decodedTag)) - return decodedTag; + pp$5.parseSubscripts = function(base, startPos, startLoc, noCalls, forInit) { + var maybeAsyncArrow = this.options.ecmaVersion >= 8 && base.type === "Identifier" && base.name === "async" && + this.lastTokEnd === base.end && !this.canInsertSemicolon() && base.end - base.start === 5 && + this.potentialArrowAt === base.start; + var optionalChained = false; + + while (true) { + var element = this.parseSubscript(base, startPos, startLoc, noCalls, maybeAsyncArrow, optionalChained, forInit); + + if (element.optional) { optionalChained = true; } + if (element === base || element.type === "ArrowFunctionExpression") { + if (optionalChained) { + var chainNode = this.startNodeAt(startPos, startLoc); + chainNode.expression = element; + element = this.finishNode(chainNode, "ChainExpression"); + } + return element + } - let len = derDecodeLen(buffer, - decodedTag.primitive, - 'Failed to get length of "' + tag + '"'); + base = element; + } + }; - // Failure - if (buffer.isError(len)) - return len; + pp$5.parseSubscript = function(base, startPos, startLoc, noCalls, maybeAsyncArrow, optionalChained, forInit) { + var optionalSupported = this.options.ecmaVersion >= 11; + var optional = optionalSupported && this.eat(types$1.questionDot); + if (noCalls && optional) { this.raise(this.lastTokStart, "Optional chaining cannot appear in the callee of new expressions"); } + + var computed = this.eat(types$1.bracketL); + if (computed || (optional && this.type !== types$1.parenL && this.type !== types$1.backQuote) || this.eat(types$1.dot)) { + var node = this.startNodeAt(startPos, startLoc); + node.object = base; + if (computed) { + node.property = this.parseExpression(); + this.expect(types$1.bracketR); + } else if (this.type === types$1.privateId && base.type !== "Super") { + node.property = this.parsePrivateIdent(); + } else { + node.property = this.parseIdent(this.options.allowReserved !== "never"); + } + node.computed = !!computed; + if (optionalSupported) { + node.optional = optional; + } + base = this.finishNode(node, "MemberExpression"); + } else if (!noCalls && this.eat(types$1.parenL)) { + var refDestructuringErrors = new DestructuringErrors, oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldAwaitIdentPos = this.awaitIdentPos; + this.yieldPos = 0; + this.awaitPos = 0; + this.awaitIdentPos = 0; + var exprList = this.parseExprList(types$1.parenR, this.options.ecmaVersion >= 8, false, refDestructuringErrors); + if (maybeAsyncArrow && !optional && !this.canInsertSemicolon() && this.eat(types$1.arrow)) { + this.checkPatternErrors(refDestructuringErrors, false); + this.checkYieldAwaitInDefaultParams(); + if (this.awaitIdentPos > 0) + { this.raise(this.awaitIdentPos, "Cannot use 'await' as identifier inside an async function"); } + this.yieldPos = oldYieldPos; + this.awaitPos = oldAwaitPos; + this.awaitIdentPos = oldAwaitIdentPos; + return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), exprList, true, forInit) + } + this.checkExpressionErrors(refDestructuringErrors, true); + this.yieldPos = oldYieldPos || this.yieldPos; + this.awaitPos = oldAwaitPos || this.awaitPos; + this.awaitIdentPos = oldAwaitIdentPos || this.awaitIdentPos; + var node$1 = this.startNodeAt(startPos, startLoc); + node$1.callee = base; + node$1.arguments = exprList; + if (optionalSupported) { + node$1.optional = optional; + } + base = this.finishNode(node$1, "CallExpression"); + } else if (this.type === types$1.backQuote) { + if (optional || optionalChained) { + this.raise(this.start, "Optional chaining cannot appear in the tag of tagged template expressions"); + } + var node$2 = this.startNodeAt(startPos, startLoc); + node$2.tag = base; + node$2.quasi = this.parseTemplate({isTagged: true}); + base = this.finishNode(node$2, "TaggedTemplateExpression"); + } + return base + }; - if (!any && - decodedTag.tag !== tag && - decodedTag.tagStr !== tag && - decodedTag.tagStr + 'of' !== tag) { - return buffer.error('Failed to match tag: "' + tag + '"'); - } + // Parse an atomic expression — either a single token that is an + // expression, an expression started by a keyword like `function` or + // `new`, or an expression wrapped in punctuation like `()`, `[]`, + // or `{}`. + + pp$5.parseExprAtom = function(refDestructuringErrors, forInit) { + // If a division operator appears in an expression position, the + // tokenizer got confused, and we force it to read a regexp instead. + if (this.type === types$1.slash) { this.readRegexp(); } + + var node, canBeArrow = this.potentialArrowAt === this.start; + switch (this.type) { + case types$1._super: + if (!this.allowSuper) + { this.raise(this.start, "'super' keyword outside a method"); } + node = this.startNode(); + this.next(); + if (this.type === types$1.parenL && !this.allowDirectSuper) + { this.raise(node.start, "super() call outside constructor of a subclass"); } + // The `super` keyword can appear at below: + // SuperProperty: + // super [ Expression ] + // super . IdentifierName + // SuperCall: + // super ( Arguments ) + if (this.type !== types$1.dot && this.type !== types$1.bracketL && this.type !== types$1.parenL) + { this.unexpected(); } + return this.finishNode(node, "Super") + + case types$1._this: + node = this.startNode(); + this.next(); + return this.finishNode(node, "ThisExpression") + + case types$1.name: + var startPos = this.start, startLoc = this.startLoc, containsEsc = this.containsEsc; + var id = this.parseIdent(false); + if (this.options.ecmaVersion >= 8 && !containsEsc && id.name === "async" && !this.canInsertSemicolon() && this.eat(types$1._function)) { + this.overrideContext(types.f_expr); + return this.parseFunction(this.startNodeAt(startPos, startLoc), 0, false, true, forInit) + } + if (canBeArrow && !this.canInsertSemicolon()) { + if (this.eat(types$1.arrow)) + { return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id], false, forInit) } + if (this.options.ecmaVersion >= 8 && id.name === "async" && this.type === types$1.name && !containsEsc && + (!this.potentialArrowInForAwait || this.value !== "of" || this.containsEsc)) { + id = this.parseIdent(false); + if (this.canInsertSemicolon() || !this.eat(types$1.arrow)) + { this.unexpected(); } + return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id], true, forInit) + } + } + return id - if (decodedTag.primitive || len !== null) - return buffer.skip(len, 'Failed to match body of: "' + tag + '"'); + case types$1.regexp: + var value = this.value; + node = this.parseLiteral(value.value); + node.regex = {pattern: value.pattern, flags: value.flags}; + return node + + case types$1.num: case types$1.string: + return this.parseLiteral(this.value) + + case types$1._null: case types$1._true: case types$1._false: + node = this.startNode(); + node.value = this.type === types$1._null ? null : this.type === types$1._true; + node.raw = this.type.keyword; + this.next(); + return this.finishNode(node, "Literal") + + case types$1.parenL: + var start = this.start, expr = this.parseParenAndDistinguishExpression(canBeArrow, forInit); + if (refDestructuringErrors) { + if (refDestructuringErrors.parenthesizedAssign < 0 && !this.isSimpleAssignTarget(expr)) + { refDestructuringErrors.parenthesizedAssign = start; } + if (refDestructuringErrors.parenthesizedBind < 0) + { refDestructuringErrors.parenthesizedBind = start; } + } + return expr - // Indefinite length... find END tag - const state = buffer.save(); - const res = this._skipUntilEnd( - buffer, - 'Failed to skip indefinite length body: "' + this.tag + '"'); - if (buffer.isError(res)) - return res; + case types$1.bracketL: + node = this.startNode(); + this.next(); + node.elements = this.parseExprList(types$1.bracketR, true, true, refDestructuringErrors); + return this.finishNode(node, "ArrayExpression") - len = buffer.offset - state.offset; - buffer.restore(state); - return buffer.skip(len, 'Failed to match body of: "' + tag + '"'); -}; + case types$1.braceL: + this.overrideContext(types.b_expr); + return this.parseObj(false, refDestructuringErrors) -DERNode.prototype._skipUntilEnd = function skipUntilEnd(buffer, fail) { - for (;;) { - const tag = derDecodeTag(buffer, fail); - if (buffer.isError(tag)) - return tag; - const len = derDecodeLen(buffer, tag.primitive, fail); - if (buffer.isError(len)) - return len; + case types$1._function: + node = this.startNode(); + this.next(); + return this.parseFunction(node, 0) - let res; - if (tag.primitive || len !== null) - res = buffer.skip(len); - else - res = this._skipUntilEnd(buffer, fail); + case types$1._class: + return this.parseClass(this.startNode(), false) - // Failure - if (buffer.isError(res)) - return res; + case types$1._new: + return this.parseNew() - if (tag.tagStr === 'end') - break; - } -}; + case types$1.backQuote: + return this.parseTemplate() -DERNode.prototype._decodeList = function decodeList(buffer, tag, decoder, - options) { - const result = []; - while (!buffer.isEmpty()) { - const possibleEnd = this._peekTag(buffer, 'end'); - if (buffer.isError(possibleEnd)) - return possibleEnd; + case types$1._import: + if (this.options.ecmaVersion >= 11) { + return this.parseExprImport() + } else { + return this.unexpected() + } - const res = decoder.decode(buffer, 'der', options); - if (buffer.isError(res) && possibleEnd) - break; - result.push(res); - } - return result; -}; + default: + this.unexpected(); + } + }; -DERNode.prototype._decodeStr = function decodeStr(buffer, tag) { - if (tag === 'bitstr') { - const unused = buffer.readUInt8(); - if (buffer.isError(unused)) - return unused; - return { unused: unused, data: buffer.raw() }; - } else if (tag === 'bmpstr') { - const raw = buffer.raw(); - if (raw.length % 2 === 1) - return buffer.error('Decoding of string type: bmpstr length mismatch'); + pp$5.parseExprImport = function() { + var node = this.startNode(); - let str = ''; - for (let i = 0; i < raw.length / 2; i++) { - str += String.fromCharCode(raw.readUInt16BE(i * 2)); - } - return str; - } else if (tag === 'numstr') { - const numstr = buffer.raw().toString('ascii'); - if (!this._isNumstr(numstr)) { - return buffer.error('Decoding of string type: ' + - 'numstr unsupported characters'); - } - return numstr; - } else if (tag === 'octstr') { - return buffer.raw(); - } else if (tag === 'objDesc') { - return buffer.raw(); - } else if (tag === 'printstr') { - const printstr = buffer.raw().toString('ascii'); - if (!this._isPrintstr(printstr)) { - return buffer.error('Decoding of string type: ' + - 'printstr unsupported characters'); - } - return printstr; - } else if (/str$/.test(tag)) { - return buffer.raw().toString(); - } else { - return buffer.error('Decoding of string type: ' + tag + ' unsupported'); - } -}; + // Consume `import` as an identifier for `import.meta`. + // Because `this.parseIdent(true)` doesn't check escape sequences, it needs the check of `this.containsEsc`. + if (this.containsEsc) { this.raiseRecoverable(this.start, "Escape sequence in keyword import"); } + var meta = this.parseIdent(true); -DERNode.prototype._decodeObjid = function decodeObjid(buffer, values, relative) { - let result; - const identifiers = []; - let ident = 0; - let subident = 0; - while (!buffer.isEmpty()) { - subident = buffer.readUInt8(); - ident <<= 7; - ident |= subident & 0x7f; - if ((subident & 0x80) === 0) { - identifiers.push(ident); - ident = 0; + switch (this.type) { + case types$1.parenL: + return this.parseDynamicImport(node) + case types$1.dot: + node.meta = meta; + return this.parseImportMeta(node) + default: + this.unexpected(); } - } - if (subident & 0x80) - identifiers.push(ident); + }; - const first = (identifiers[0] / 40) | 0; - const second = identifiers[0] % 40; + pp$5.parseDynamicImport = function(node) { + this.next(); // skip `(` - if (relative) - result = identifiers; - else - result = [first, second].concat(identifiers.slice(1)); + // Parse node.source. + node.source = this.parseMaybeAssign(); - if (values) { - let tmp = values[result.join(' ')]; - if (tmp === undefined) - tmp = values[result.join('.')]; - if (tmp !== undefined) - result = tmp; - } + // Verify ending. + if (!this.eat(types$1.parenR)) { + var errorPos = this.start; + if (this.eat(types$1.comma) && this.eat(types$1.parenR)) { + this.raiseRecoverable(errorPos, "Trailing comma is not allowed in import()"); + } else { + this.unexpected(errorPos); + } + } - return result; -}; + return this.finishNode(node, "ImportExpression") + }; -DERNode.prototype._decodeTime = function decodeTime(buffer, tag) { - const str = buffer.raw().toString(); + pp$5.parseImportMeta = function(node) { + this.next(); // skip `.` - let year; - let mon; - let day; - let hour; - let min; - let sec; - if (tag === 'gentime') { - year = str.slice(0, 4) | 0; - mon = str.slice(4, 6) | 0; - day = str.slice(6, 8) | 0; - hour = str.slice(8, 10) | 0; - min = str.slice(10, 12) | 0; - sec = str.slice(12, 14) | 0; - } else if (tag === 'utctime') { - year = str.slice(0, 2) | 0; - mon = str.slice(2, 4) | 0; - day = str.slice(4, 6) | 0; - hour = str.slice(6, 8) | 0; - min = str.slice(8, 10) | 0; - sec = str.slice(10, 12) | 0; - if (year < 70) - year = 2000 + year; - else - year = 1900 + year; - } else { - return buffer.error('Decoding ' + tag + ' time is not supported yet'); - } + var containsEsc = this.containsEsc; + node.property = this.parseIdent(true); - return Date.UTC(year, mon - 1, day, hour, min, sec, 0); -}; + if (node.property.name !== "meta") + { this.raiseRecoverable(node.property.start, "The only valid meta property for import is 'import.meta'"); } + if (containsEsc) + { this.raiseRecoverable(node.start, "'import.meta' must not contain escaped characters"); } + if (this.options.sourceType !== "module" && !this.options.allowImportExportEverywhere) + { this.raiseRecoverable(node.start, "Cannot use 'import.meta' outside a module"); } -DERNode.prototype._decodeNull = function decodeNull() { - return null; -}; + return this.finishNode(node, "MetaProperty") + }; -DERNode.prototype._decodeBool = function decodeBool(buffer) { - const res = buffer.readUInt8(); - if (buffer.isError(res)) - return res; - else - return res !== 0; -}; + pp$5.parseLiteral = function(value) { + var node = this.startNode(); + node.value = value; + node.raw = this.input.slice(this.start, this.end); + if (node.raw.charCodeAt(node.raw.length - 1) === 110) { node.bigint = node.raw.slice(0, -1).replace(/_/g, ""); } + this.next(); + return this.finishNode(node, "Literal") + }; -DERNode.prototype._decodeInt = function decodeInt(buffer, values) { - // Bigint, return as it is (assume big endian) - const raw = buffer.raw(); - let res = new bignum(raw); - - if (values) - res = values[res.toString(10)] || res; + pp$5.parseParenExpression = function() { + this.expect(types$1.parenL); + var val = this.parseExpression(); + this.expect(types$1.parenR); + return val + }; - return res; -}; + pp$5.parseParenAndDistinguishExpression = function(canBeArrow, forInit) { + var startPos = this.start, startLoc = this.startLoc, val, allowTrailingComma = this.options.ecmaVersion >= 8; + if (this.options.ecmaVersion >= 6) { + this.next(); + + var innerStartPos = this.start, innerStartLoc = this.startLoc; + var exprList = [], first = true, lastIsComma = false; + var refDestructuringErrors = new DestructuringErrors, oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, spreadStart; + this.yieldPos = 0; + this.awaitPos = 0; + // Do not save awaitIdentPos to allow checking awaits nested in parameters + while (this.type !== types$1.parenR) { + first ? first = false : this.expect(types$1.comma); + if (allowTrailingComma && this.afterTrailingComma(types$1.parenR, true)) { + lastIsComma = true; + break + } else if (this.type === types$1.ellipsis) { + spreadStart = this.start; + exprList.push(this.parseParenItem(this.parseRestBinding())); + if (this.type === types$1.comma) { this.raise(this.start, "Comma is not permitted after the rest element"); } + break + } else { + exprList.push(this.parseMaybeAssign(false, refDestructuringErrors, this.parseParenItem)); + } + } + var innerEndPos = this.lastTokEnd, innerEndLoc = this.lastTokEndLoc; + this.expect(types$1.parenR); + + if (canBeArrow && !this.canInsertSemicolon() && this.eat(types$1.arrow)) { + this.checkPatternErrors(refDestructuringErrors, false); + this.checkYieldAwaitInDefaultParams(); + this.yieldPos = oldYieldPos; + this.awaitPos = oldAwaitPos; + return this.parseParenArrowList(startPos, startLoc, exprList, forInit) + } -DERNode.prototype._use = function use(entity, obj) { - if (typeof entity === 'function') - entity = entity(obj); - return entity._getDecoder('der').tree; -}; + if (!exprList.length || lastIsComma) { this.unexpected(this.lastTokStart); } + if (spreadStart) { this.unexpected(spreadStart); } + this.checkExpressionErrors(refDestructuringErrors, true); + this.yieldPos = oldYieldPos || this.yieldPos; + this.awaitPos = oldAwaitPos || this.awaitPos; -// Utility methods + if (exprList.length > 1) { + val = this.startNodeAt(innerStartPos, innerStartLoc); + val.expressions = exprList; + this.finishNodeAt(val, "SequenceExpression", innerEndPos, innerEndLoc); + } else { + val = exprList[0]; + } + } else { + val = this.parseParenExpression(); + } -function derDecodeTag(buf, fail) { - let tag = buf.readUInt8(fail); - if (buf.isError(tag)) - return tag; + if (this.options.preserveParens) { + var par = this.startNodeAt(startPos, startLoc); + par.expression = val; + return this.finishNode(par, "ParenthesizedExpression") + } else { + return val + } + }; - const cls = der.tagClass[tag >> 6]; - const primitive = (tag & 0x20) === 0; + pp$5.parseParenItem = function(item) { + return item + }; - // Multi-octet tag - load - if ((tag & 0x1f) === 0x1f) { - let oct = tag; - tag = 0; - while ((oct & 0x80) === 0x80) { - oct = buf.readUInt8(fail); - if (buf.isError(oct)) - return oct; + pp$5.parseParenArrowList = function(startPos, startLoc, exprList, forInit) { + return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), exprList, false, forInit) + }; - tag <<= 7; - tag |= oct & 0x7f; + // New's precedence is slightly tricky. It must allow its argument to + // be a `[]` or dot subscript expression, but not a call — at least, + // not without wrapping it in parentheses. Thus, it uses the noCalls + // argument to parseSubscripts to prevent it from consuming the + // argument list. + + var empty = []; + + pp$5.parseNew = function() { + if (this.containsEsc) { this.raiseRecoverable(this.start, "Escape sequence in keyword new"); } + var node = this.startNode(); + var meta = this.parseIdent(true); + if (this.options.ecmaVersion >= 6 && this.eat(types$1.dot)) { + node.meta = meta; + var containsEsc = this.containsEsc; + node.property = this.parseIdent(true); + if (node.property.name !== "target") + { this.raiseRecoverable(node.property.start, "The only valid meta property for new is 'new.target'"); } + if (containsEsc) + { this.raiseRecoverable(node.start, "'new.target' must not contain escaped characters"); } + if (!this.allowNewDotTarget) + { this.raiseRecoverable(node.start, "'new.target' can only be used in functions and class static block"); } + return this.finishNode(node, "MetaProperty") } - } else { - tag &= 0x1f; - } - const tagStr = der.tag[tag]; - - return { - cls: cls, - primitive: primitive, - tag: tag, - tagStr: tagStr + var startPos = this.start, startLoc = this.startLoc, isImport = this.type === types$1._import; + node.callee = this.parseSubscripts(this.parseExprAtom(), startPos, startLoc, true, false); + if (isImport && node.callee.type === "ImportExpression") { + this.raise(startPos, "Cannot use new with import()"); + } + if (this.eat(types$1.parenL)) { node.arguments = this.parseExprList(types$1.parenR, this.options.ecmaVersion >= 8, false); } + else { node.arguments = empty; } + return this.finishNode(node, "NewExpression") }; -} -function derDecodeLen(buf, primitive, fail) { - let len = buf.readUInt8(fail); - if (buf.isError(len)) - return len; + // Parse template expression. - // Indefinite form - if (!primitive && len === 0x80) - return null; + pp$5.parseTemplateElement = function(ref) { + var isTagged = ref.isTagged; - // Definite form - if ((len & 0x80) === 0) { - // Short form - return len; - } + var elem = this.startNode(); + if (this.type === types$1.invalidTemplate) { + if (!isTagged) { + this.raiseRecoverable(this.start, "Bad escape sequence in untagged template literal"); + } + elem.value = { + raw: this.value, + cooked: null + }; + } else { + elem.value = { + raw: this.input.slice(this.start, this.end).replace(/\r\n?/g, "\n"), + cooked: this.value + }; + } + this.next(); + elem.tail = this.type === types$1.backQuote; + return this.finishNode(elem, "TemplateElement") + }; - // Long form - const num = len & 0x7f; - if (num > 4) - return buf.error('length octect is too long'); + pp$5.parseTemplate = function(ref) { + if ( ref === void 0 ) ref = {}; + var isTagged = ref.isTagged; if ( isTagged === void 0 ) isTagged = false; + + var node = this.startNode(); + this.next(); + node.expressions = []; + var curElt = this.parseTemplateElement({isTagged: isTagged}); + node.quasis = [curElt]; + while (!curElt.tail) { + if (this.type === types$1.eof) { this.raise(this.pos, "Unterminated template literal"); } + this.expect(types$1.dollarBraceL); + node.expressions.push(this.parseExpression()); + this.expect(types$1.braceR); + node.quasis.push(curElt = this.parseTemplateElement({isTagged: isTagged})); + } + this.next(); + return this.finishNode(node, "TemplateLiteral") + }; - len = 0; - for (let i = 0; i < num; i++) { - len <<= 8; - const j = buf.readUInt8(fail); - if (buf.isError(j)) - return j; - len |= j; - } + pp$5.isAsyncProp = function(prop) { + return !prop.computed && prop.key.type === "Identifier" && prop.key.name === "async" && + (this.type === types$1.name || this.type === types$1.num || this.type === types$1.string || this.type === types$1.bracketL || this.type.keyword || (this.options.ecmaVersion >= 9 && this.type === types$1.star)) && + !lineBreak.test(this.input.slice(this.lastTokEnd, this.start)) + }; - return len; -} + // Parse an object literal or binding pattern. + + pp$5.parseObj = function(isPattern, refDestructuringErrors) { + var node = this.startNode(), first = true, propHash = {}; + node.properties = []; + this.next(); + while (!this.eat(types$1.braceR)) { + if (!first) { + this.expect(types$1.comma); + if (this.options.ecmaVersion >= 5 && this.afterTrailingComma(types$1.braceR)) { break } + } else { first = false; } + + var prop = this.parseProperty(isPattern, refDestructuringErrors); + if (!isPattern) { this.checkPropClash(prop, propHash, refDestructuringErrors); } + node.properties.push(prop); + } + return this.finishNode(node, isPattern ? "ObjectPattern" : "ObjectExpression") + }; + pp$5.parseProperty = function(isPattern, refDestructuringErrors) { + var prop = this.startNode(), isGenerator, isAsync, startPos, startLoc; + if (this.options.ecmaVersion >= 9 && this.eat(types$1.ellipsis)) { + if (isPattern) { + prop.argument = this.parseIdent(false); + if (this.type === types$1.comma) { + this.raise(this.start, "Comma is not permitted after the rest element"); + } + return this.finishNode(prop, "RestElement") + } + // To disallow parenthesized identifier via `this.toAssignable()`. + if (this.type === types$1.parenL && refDestructuringErrors) { + if (refDestructuringErrors.parenthesizedAssign < 0) { + refDestructuringErrors.parenthesizedAssign = this.start; + } + if (refDestructuringErrors.parenthesizedBind < 0) { + refDestructuringErrors.parenthesizedBind = this.start; + } + } + // Parse argument. + prop.argument = this.parseMaybeAssign(false, refDestructuringErrors); + // To disallow trailing comma via `this.toAssignable()`. + if (this.type === types$1.comma && refDestructuringErrors && refDestructuringErrors.trailingComma < 0) { + refDestructuringErrors.trailingComma = this.start; + } + // Finish + return this.finishNode(prop, "SpreadElement") + } + if (this.options.ecmaVersion >= 6) { + prop.method = false; + prop.shorthand = false; + if (isPattern || refDestructuringErrors) { + startPos = this.start; + startLoc = this.startLoc; + } + if (!isPattern) + { isGenerator = this.eat(types$1.star); } + } + var containsEsc = this.containsEsc; + this.parsePropertyName(prop); + if (!isPattern && !containsEsc && this.options.ecmaVersion >= 8 && !isGenerator && this.isAsyncProp(prop)) { + isAsync = true; + isGenerator = this.options.ecmaVersion >= 9 && this.eat(types$1.star); + this.parsePropertyName(prop, refDestructuringErrors); + } else { + isAsync = false; + } + this.parsePropertyValue(prop, isPattern, isGenerator, isAsync, startPos, startLoc, refDestructuringErrors, containsEsc); + return this.finishNode(prop, "Property") + }; -/***/ }), + pp$5.parsePropertyValue = function(prop, isPattern, isGenerator, isAsync, startPos, startLoc, refDestructuringErrors, containsEsc) { + if ((isGenerator || isAsync) && this.type === types$1.colon) + { this.unexpected(); } + + if (this.eat(types$1.colon)) { + prop.value = isPattern ? this.parseMaybeDefault(this.start, this.startLoc) : this.parseMaybeAssign(false, refDestructuringErrors); + prop.kind = "init"; + } else if (this.options.ecmaVersion >= 6 && this.type === types$1.parenL) { + if (isPattern) { this.unexpected(); } + prop.kind = "init"; + prop.method = true; + prop.value = this.parseMethod(isGenerator, isAsync); + } else if (!isPattern && !containsEsc && + this.options.ecmaVersion >= 5 && !prop.computed && prop.key.type === "Identifier" && + (prop.key.name === "get" || prop.key.name === "set") && + (this.type !== types$1.comma && this.type !== types$1.braceR && this.type !== types$1.eq)) { + if (isGenerator || isAsync) { this.unexpected(); } + prop.kind = prop.key.name; + this.parsePropertyName(prop); + prop.value = this.parseMethod(false); + var paramCount = prop.kind === "get" ? 0 : 1; + if (prop.value.params.length !== paramCount) { + var start = prop.value.start; + if (prop.kind === "get") + { this.raiseRecoverable(start, "getter should have no params"); } + else + { this.raiseRecoverable(start, "setter should have exactly one param"); } + } else { + if (prop.kind === "set" && prop.value.params[0].type === "RestElement") + { this.raiseRecoverable(prop.value.params[0].start, "Setter cannot use rest params"); } + } + } else if (this.options.ecmaVersion >= 6 && !prop.computed && prop.key.type === "Identifier") { + if (isGenerator || isAsync) { this.unexpected(); } + this.checkUnreserved(prop.key); + if (prop.key.name === "await" && !this.awaitIdentPos) + { this.awaitIdentPos = startPos; } + prop.kind = "init"; + if (isPattern) { + prop.value = this.parseMaybeDefault(startPos, startLoc, this.copyNode(prop.key)); + } else if (this.type === types$1.eq && refDestructuringErrors) { + if (refDestructuringErrors.shorthandAssign < 0) + { refDestructuringErrors.shorthandAssign = this.start; } + prop.value = this.parseMaybeDefault(startPos, startLoc, this.copyNode(prop.key)); + } else { + prop.value = this.copyNode(prop.key); + } + prop.shorthand = true; + } else { this.unexpected(); } + }; -/***/ 4952: -/***/ ((__unused_webpack_module, exports, __nccwpck_require__) => { + pp$5.parsePropertyName = function(prop) { + if (this.options.ecmaVersion >= 6) { + if (this.eat(types$1.bracketL)) { + prop.computed = true; + prop.key = this.parseMaybeAssign(); + this.expect(types$1.bracketR); + return prop.key + } else { + prop.computed = false; + } + } + return prop.key = this.type === types$1.num || this.type === types$1.string ? this.parseExprAtom() : this.parseIdent(this.options.allowReserved !== "never") + }; -"use strict"; + // Initialize empty function node. + pp$5.initFunction = function(node) { + node.id = null; + if (this.options.ecmaVersion >= 6) { node.generator = node.expression = false; } + if (this.options.ecmaVersion >= 8) { node.async = false; } + }; -const decoders = exports; + // Parse object or class method. -decoders.der = __nccwpck_require__(3332); -decoders.pem = __nccwpck_require__(8361); + pp$5.parseMethod = function(isGenerator, isAsync, allowDirectSuper) { + var node = this.startNode(), oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldAwaitIdentPos = this.awaitIdentPos; + this.initFunction(node); + if (this.options.ecmaVersion >= 6) + { node.generator = isGenerator; } + if (this.options.ecmaVersion >= 8) + { node.async = !!isAsync; } -/***/ }), + this.yieldPos = 0; + this.awaitPos = 0; + this.awaitIdentPos = 0; + this.enterScope(functionFlags(isAsync, node.generator) | SCOPE_SUPER | (allowDirectSuper ? SCOPE_DIRECT_SUPER : 0)); -/***/ 8361: -/***/ ((module, __unused_webpack_exports, __nccwpck_require__) => { + this.expect(types$1.parenL); + node.params = this.parseBindingList(types$1.parenR, false, this.options.ecmaVersion >= 8); + this.checkYieldAwaitInDefaultParams(); + this.parseFunctionBody(node, false, true, false); -"use strict"; + this.yieldPos = oldYieldPos; + this.awaitPos = oldAwaitPos; + this.awaitIdentPos = oldAwaitIdentPos; + return this.finishNode(node, "FunctionExpression") + }; + // Parse arrow function expression with given parameters. -const inherits = __nccwpck_require__(4124); -const Buffer = (__nccwpck_require__(5118).Buffer); + pp$5.parseArrowExpression = function(node, params, isAsync, forInit) { + var oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldAwaitIdentPos = this.awaitIdentPos; -const DERDecoder = __nccwpck_require__(3332); + this.enterScope(functionFlags(isAsync, false) | SCOPE_ARROW); + this.initFunction(node); + if (this.options.ecmaVersion >= 8) { node.async = !!isAsync; } -function PEMDecoder(entity) { - DERDecoder.call(this, entity); - this.enc = 'pem'; -} -inherits(PEMDecoder, DERDecoder); -module.exports = PEMDecoder; + this.yieldPos = 0; + this.awaitPos = 0; + this.awaitIdentPos = 0; -PEMDecoder.prototype.decode = function decode(data, options) { - const lines = data.toString().split(/[\r\n]+/g); + node.params = this.toAssignableList(params, true); + this.parseFunctionBody(node, true, false, forInit); - const label = options.label.toUpperCase(); + this.yieldPos = oldYieldPos; + this.awaitPos = oldAwaitPos; + this.awaitIdentPos = oldAwaitIdentPos; + return this.finishNode(node, "ArrowFunctionExpression") + }; - const re = /^-----(BEGIN|END) ([^-]+)-----$/; - let start = -1; - let end = -1; - for (let i = 0; i < lines.length; i++) { - const match = lines[i].match(re); - if (match === null) - continue; + // Parse function body and check parameters. - if (match[2] !== label) - continue; + pp$5.parseFunctionBody = function(node, isArrowFunction, isMethod, forInit) { + var isExpression = isArrowFunction && this.type !== types$1.braceL; + var oldStrict = this.strict, useStrict = false; - if (start === -1) { - if (match[1] !== 'BEGIN') - break; - start = i; + if (isExpression) { + node.body = this.parseMaybeAssign(forInit); + node.expression = true; + this.checkParams(node, false); } else { - if (match[1] !== 'END') - break; - end = i; - break; + var nonSimple = this.options.ecmaVersion >= 7 && !this.isSimpleParamList(node.params); + if (!oldStrict || nonSimple) { + useStrict = this.strictDirective(this.end); + // If this is a strict mode function, verify that argument names + // are not repeated, and it does not try to bind the words `eval` + // or `arguments`. + if (useStrict && nonSimple) + { this.raiseRecoverable(node.start, "Illegal 'use strict' directive in function with non-simple parameter list"); } + } + // Start a new scope with regard to labels and the `inFunction` + // flag (restore them to their old value afterwards). + var oldLabels = this.labels; + this.labels = []; + if (useStrict) { this.strict = true; } + + // Add the params to varDeclaredNames to ensure that an error is thrown + // if a let/const declaration in the function clashes with one of the params. + this.checkParams(node, !oldStrict && !useStrict && !isArrowFunction && !isMethod && this.isSimpleParamList(node.params)); + // Ensure the function name isn't a forbidden identifier in strict mode, e.g. 'eval' + if (this.strict && node.id) { this.checkLValSimple(node.id, BIND_OUTSIDE); } + node.body = this.parseBlock(false, undefined, useStrict && !oldStrict); + node.expression = false; + this.adaptDirectivePrologue(node.body.body); + this.labels = oldLabels; } - } - if (start === -1 || end === -1) - throw new Error('PEM section not found for: ' + label); + this.exitScope(); + }; - const base64 = lines.slice(start + 1, end).join(''); - // Remove excessive symbols - base64.replace(/[^a-z0-9+/=]+/gi, ''); + pp$5.isSimpleParamList = function(params) { + for (var i = 0, list = params; i < list.length; i += 1) + { + var param = list[i]; - const input = Buffer.from(base64, 'base64'); - return DERDecoder.prototype.decode.call(this, input, options); -}; + if (param.type !== "Identifier") { return false + } } + return true + }; + // Checks function params for various disallowed patterns such as using "eval" + // or "arguments" and duplicate parameters. -/***/ }), + pp$5.checkParams = function(node, allowDuplicates) { + var nameHash = Object.create(null); + for (var i = 0, list = node.params; i < list.length; i += 1) + { + var param = list[i]; -/***/ 5769: -/***/ ((module, __unused_webpack_exports, __nccwpck_require__) => { + this.checkLValInnerPattern(param, BIND_VAR, allowDuplicates ? null : nameHash); + } + }; -"use strict"; + // Parses a comma-separated list of expressions, and returns them as + // an array. `close` is the token type that ends the list, and + // `allowEmpty` can be turned on to allow subsequent commas with + // nothing in between them to be parsed as `null` (which is needed + // for array literals). + + pp$5.parseExprList = function(close, allowTrailingComma, allowEmpty, refDestructuringErrors) { + var elts = [], first = true; + while (!this.eat(close)) { + if (!first) { + this.expect(types$1.comma); + if (allowTrailingComma && this.afterTrailingComma(close)) { break } + } else { first = false; } + + var elt = (void 0); + if (allowEmpty && this.type === types$1.comma) + { elt = null; } + else if (this.type === types$1.ellipsis) { + elt = this.parseSpread(refDestructuringErrors); + if (refDestructuringErrors && this.type === types$1.comma && refDestructuringErrors.trailingComma < 0) + { refDestructuringErrors.trailingComma = this.start; } + } else { + elt = this.parseMaybeAssign(false, refDestructuringErrors); + } + elts.push(elt); + } + return elts + }; + pp$5.checkUnreserved = function(ref) { + var start = ref.start; + var end = ref.end; + var name = ref.name; + + if (this.inGenerator && name === "yield") + { this.raiseRecoverable(start, "Cannot use 'yield' as identifier inside a generator"); } + if (this.inAsync && name === "await") + { this.raiseRecoverable(start, "Cannot use 'await' as identifier inside an async function"); } + if (this.currentThisScope().inClassFieldInit && name === "arguments") + { this.raiseRecoverable(start, "Cannot use 'arguments' in class field initializer"); } + if (this.inClassStaticBlock && (name === "arguments" || name === "await")) + { this.raise(start, ("Cannot use " + name + " in class static initialization block")); } + if (this.keywords.test(name)) + { this.raise(start, ("Unexpected keyword '" + name + "'")); } + if (this.options.ecmaVersion < 6 && + this.input.slice(start, end).indexOf("\\") !== -1) { return } + var re = this.strict ? this.reservedWordsStrict : this.reservedWords; + if (re.test(name)) { + if (!this.inAsync && name === "await") + { this.raiseRecoverable(start, "Cannot use keyword 'await' outside an async function"); } + this.raiseRecoverable(start, ("The keyword '" + name + "' is reserved")); + } + }; -const inherits = __nccwpck_require__(4124); -const Buffer = (__nccwpck_require__(5118).Buffer); -const Node = __nccwpck_require__(842); + // Parse the next token as an identifier. If `liberal` is true (used + // when parsing properties), it will also convert keywords into + // identifiers. + + pp$5.parseIdent = function(liberal, isBinding) { + var node = this.startNode(); + if (this.type === types$1.name) { + node.name = this.value; + } else if (this.type.keyword) { + node.name = this.type.keyword; + + // To fix https://github.com/acornjs/acorn/issues/575 + // `class` and `function` keywords push new context into this.context. + // But there is no chance to pop the context if the keyword is consumed as an identifier such as a property name. + // If the previous token is a dot, this does not apply because the context-managing code already ignored the keyword + if ((node.name === "class" || node.name === "function") && + (this.lastTokEnd !== this.lastTokStart + 1 || this.input.charCodeAt(this.lastTokStart) !== 46)) { + this.context.pop(); + } + } else { + this.unexpected(); + } + this.next(!!liberal); + this.finishNode(node, "Identifier"); + if (!liberal) { + this.checkUnreserved(node); + if (node.name === "await" && !this.awaitIdentPos) + { this.awaitIdentPos = node.start; } + } + return node + }; -// Import DER constants -const der = __nccwpck_require__(1188); + pp$5.parsePrivateIdent = function() { + var node = this.startNode(); + if (this.type === types$1.privateId) { + node.name = this.value; + } else { + this.unexpected(); + } + this.next(); + this.finishNode(node, "PrivateIdentifier"); -function DEREncoder(entity) { - this.enc = 'der'; - this.name = entity.name; - this.entity = entity; + // For validating existence + if (this.privateNameStack.length === 0) { + this.raise(node.start, ("Private field '#" + (node.name) + "' must be declared in an enclosing class")); + } else { + this.privateNameStack[this.privateNameStack.length - 1].used.push(node); + } - // Construct base tree - this.tree = new DERNode(); - this.tree._init(entity.body); -} -module.exports = DEREncoder; + return node + }; -DEREncoder.prototype.encode = function encode(data, reporter) { - return this.tree._encode(data, reporter).join(); -}; + // Parses yield expression inside generator. -// Tree methods + pp$5.parseYield = function(forInit) { + if (!this.yieldPos) { this.yieldPos = this.start; } -function DERNode(parent) { - Node.call(this, 'der', parent); -} -inherits(DERNode, Node); + var node = this.startNode(); + this.next(); + if (this.type === types$1.semi || this.canInsertSemicolon() || (this.type !== types$1.star && !this.type.startsExpr)) { + node.delegate = false; + node.argument = null; + } else { + node.delegate = this.eat(types$1.star); + node.argument = this.parseMaybeAssign(forInit); + } + return this.finishNode(node, "YieldExpression") + }; -DERNode.prototype._encodeComposite = function encodeComposite(tag, - primitive, - cls, - content) { - const encodedTag = encodeTag(tag, primitive, cls, this.reporter); + pp$5.parseAwait = function(forInit) { + if (!this.awaitPos) { this.awaitPos = this.start; } - // Short form - if (content.length < 0x80) { - const header = Buffer.alloc(2); - header[0] = encodedTag; - header[1] = content.length; - return this._createEncoderBuffer([ header, content ]); - } + var node = this.startNode(); + this.next(); + node.argument = this.parseMaybeUnary(null, true, false, forInit); + return this.finishNode(node, "AwaitExpression") + }; - // Long form - // Count octets required to store length - let lenOctets = 1; - for (let i = content.length; i >= 0x100; i >>= 8) - lenOctets++; + var pp$4 = Parser.prototype; - const header = Buffer.alloc(1 + 1 + lenOctets); - header[0] = encodedTag; - header[1] = 0x80 | lenOctets; + // This function is used to raise exceptions on parse errors. It + // takes an offset integer (into the current `input`) to indicate + // the location of the error, attaches the position to the end + // of the error message, and then raises a `SyntaxError` with that + // message. - for (let i = 1 + lenOctets, j = content.length; j > 0; i--, j >>= 8) - header[i] = j & 0xff; + pp$4.raise = function(pos, message) { + var loc = getLineInfo(this.input, pos); + message += " (" + loc.line + ":" + loc.column + ")"; + var err = new SyntaxError(message); + err.pos = pos; err.loc = loc; err.raisedAt = this.pos; + throw err + }; - return this._createEncoderBuffer([ header, content ]); -}; + pp$4.raiseRecoverable = pp$4.raise; -DERNode.prototype._encodeStr = function encodeStr(str, tag) { - if (tag === 'bitstr') { - return this._createEncoderBuffer([ str.unused | 0, str.data ]); - } else if (tag === 'bmpstr') { - const buf = Buffer.alloc(str.length * 2); - for (let i = 0; i < str.length; i++) { - buf.writeUInt16BE(str.charCodeAt(i), i * 2); + pp$4.curPosition = function() { + if (this.options.locations) { + return new Position(this.curLine, this.pos - this.lineStart) } - return this._createEncoderBuffer(buf); - } else if (tag === 'numstr') { - if (!this._isNumstr(str)) { - return this.reporter.error('Encoding of string type: numstr supports ' + - 'only digits and space'); - } - return this._createEncoderBuffer(str); - } else if (tag === 'printstr') { - if (!this._isPrintstr(str)) { - return this.reporter.error('Encoding of string type: printstr supports ' + - 'only latin upper and lower case letters, ' + - 'digits, space, apostrophe, left and rigth ' + - 'parenthesis, plus sign, comma, hyphen, ' + - 'dot, slash, colon, equal sign, ' + - 'question mark'); - } - return this._createEncoderBuffer(str); - } else if (/str$/.test(tag)) { - return this._createEncoderBuffer(str); - } else if (tag === 'objDesc') { - return this._createEncoderBuffer(str); - } else { - return this.reporter.error('Encoding of string type: ' + tag + - ' unsupported'); - } -}; - -DERNode.prototype._encodeObjid = function encodeObjid(id, values, relative) { - if (typeof id === 'string') { - if (!values) - return this.reporter.error('string objid given, but no values map found'); - if (!values.hasOwnProperty(id)) - return this.reporter.error('objid not found in values map'); - id = values[id].split(/[\s.]+/g); - for (let i = 0; i < id.length; i++) - id[i] |= 0; - } else if (Array.isArray(id)) { - id = id.slice(); - for (let i = 0; i < id.length; i++) - id[i] |= 0; - } - - if (!Array.isArray(id)) { - return this.reporter.error('objid() should be either array or string, ' + - 'got: ' + JSON.stringify(id)); - } - - if (!relative) { - if (id[1] >= 40) - return this.reporter.error('Second objid identifier OOB'); - id.splice(0, 2, id[0] * 40 + id[1]); - } + }; - // Count number of octets - let size = 0; - for (let i = 0; i < id.length; i++) { - let ident = id[i]; - for (size++; ident >= 0x80; ident >>= 7) - size++; - } + var pp$3 = Parser.prototype; + + var Scope = function Scope(flags) { + this.flags = flags; + // A list of var-declared names in the current lexical scope + this.var = []; + // A list of lexically-declared names in the current lexical scope + this.lexical = []; + // A list of lexically-declared FunctionDeclaration names in the current lexical scope + this.functions = []; + // A switch to disallow the identifier reference 'arguments' + this.inClassFieldInit = false; + }; - const objid = Buffer.alloc(size); - let offset = objid.length - 1; - for (let i = id.length - 1; i >= 0; i--) { - let ident = id[i]; - objid[offset--] = ident & 0x7f; - while ((ident >>= 7) > 0) - objid[offset--] = 0x80 | (ident & 0x7f); - } + // The functions in this module keep track of declared variables in the current scope in order to detect duplicate variable names. - return this._createEncoderBuffer(objid); -}; + pp$3.enterScope = function(flags) { + this.scopeStack.push(new Scope(flags)); + }; -function two(num) { - if (num < 10) - return '0' + num; - else - return num; -} + pp$3.exitScope = function() { + this.scopeStack.pop(); + }; -DERNode.prototype._encodeTime = function encodeTime(time, tag) { - let str; - const date = new Date(time); + // The spec says: + // > At the top level of a function, or script, function declarations are + // > treated like var declarations rather than like lexical declarations. + pp$3.treatFunctionsAsVarInScope = function(scope) { + return (scope.flags & SCOPE_FUNCTION) || !this.inModule && (scope.flags & SCOPE_TOP) + }; - if (tag === 'gentime') { - str = [ - two(date.getUTCFullYear()), - two(date.getUTCMonth() + 1), - two(date.getUTCDate()), - two(date.getUTCHours()), - two(date.getUTCMinutes()), - two(date.getUTCSeconds()), - 'Z' - ].join(''); - } else if (tag === 'utctime') { - str = [ - two(date.getUTCFullYear() % 100), - two(date.getUTCMonth() + 1), - two(date.getUTCDate()), - two(date.getUTCHours()), - two(date.getUTCMinutes()), - two(date.getUTCSeconds()), - 'Z' - ].join(''); - } else { - this.reporter.error('Encoding ' + tag + ' time is not supported yet'); - } + pp$3.declareName = function(name, bindingType, pos) { + var redeclared = false; + if (bindingType === BIND_LEXICAL) { + var scope = this.currentScope(); + redeclared = scope.lexical.indexOf(name) > -1 || scope.functions.indexOf(name) > -1 || scope.var.indexOf(name) > -1; + scope.lexical.push(name); + if (this.inModule && (scope.flags & SCOPE_TOP)) + { delete this.undefinedExports[name]; } + } else if (bindingType === BIND_SIMPLE_CATCH) { + var scope$1 = this.currentScope(); + scope$1.lexical.push(name); + } else if (bindingType === BIND_FUNCTION) { + var scope$2 = this.currentScope(); + if (this.treatFunctionsAsVar) + { redeclared = scope$2.lexical.indexOf(name) > -1; } + else + { redeclared = scope$2.lexical.indexOf(name) > -1 || scope$2.var.indexOf(name) > -1; } + scope$2.functions.push(name); + } else { + for (var i = this.scopeStack.length - 1; i >= 0; --i) { + var scope$3 = this.scopeStack[i]; + if (scope$3.lexical.indexOf(name) > -1 && !((scope$3.flags & SCOPE_SIMPLE_CATCH) && scope$3.lexical[0] === name) || + !this.treatFunctionsAsVarInScope(scope$3) && scope$3.functions.indexOf(name) > -1) { + redeclared = true; + break + } + scope$3.var.push(name); + if (this.inModule && (scope$3.flags & SCOPE_TOP)) + { delete this.undefinedExports[name]; } + if (scope$3.flags & SCOPE_VAR) { break } + } + } + if (redeclared) { this.raiseRecoverable(pos, ("Identifier '" + name + "' has already been declared")); } + }; - return this._encodeStr(str, 'octstr'); -}; + pp$3.checkLocalExport = function(id) { + // scope.functions must be empty as Module code is always strict. + if (this.scopeStack[0].lexical.indexOf(id.name) === -1 && + this.scopeStack[0].var.indexOf(id.name) === -1) { + this.undefinedExports[id.name] = id; + } + }; -DERNode.prototype._encodeNull = function encodeNull() { - return this._createEncoderBuffer(''); -}; + pp$3.currentScope = function() { + return this.scopeStack[this.scopeStack.length - 1] + }; -DERNode.prototype._encodeInt = function encodeInt(num, values) { - if (typeof num === 'string') { - if (!values) - return this.reporter.error('String int or enum given, but no values map'); - if (!values.hasOwnProperty(num)) { - return this.reporter.error('Values map doesn\'t contain: ' + - JSON.stringify(num)); + pp$3.currentVarScope = function() { + for (var i = this.scopeStack.length - 1;; i--) { + var scope = this.scopeStack[i]; + if (scope.flags & SCOPE_VAR) { return scope } } - num = values[num]; - } + }; - // Bignum, assume big endian - if (typeof num !== 'number' && !Buffer.isBuffer(num)) { - const numArray = num.toArray(); - if (!num.sign && numArray[0] & 0x80) { - numArray.unshift(0); + // Could be useful for `this`, `new.target`, `super()`, `super.property`, and `super[property]`. + pp$3.currentThisScope = function() { + for (var i = this.scopeStack.length - 1;; i--) { + var scope = this.scopeStack[i]; + if (scope.flags & SCOPE_VAR && !(scope.flags & SCOPE_ARROW)) { return scope } } - num = Buffer.from(numArray); - } + }; - if (Buffer.isBuffer(num)) { - let size = num.length; - if (num.length === 0) - size++; + var Node = function Node(parser, pos, loc) { + this.type = ""; + this.start = pos; + this.end = 0; + if (parser.options.locations) + { this.loc = new SourceLocation(parser, loc); } + if (parser.options.directSourceFile) + { this.sourceFile = parser.options.directSourceFile; } + if (parser.options.ranges) + { this.range = [pos, 0]; } + }; - const out = Buffer.alloc(size); - num.copy(out); - if (num.length === 0) - out[0] = 0; - return this._createEncoderBuffer(out); - } + // Start an AST node, attaching a start offset. - if (num < 0x80) - return this._createEncoderBuffer(num); + var pp$2 = Parser.prototype; - if (num < 0x100) - return this._createEncoderBuffer([0, num]); + pp$2.startNode = function() { + return new Node(this, this.start, this.startLoc) + }; - let size = 1; - for (let i = num; i >= 0x100; i >>= 8) - size++; + pp$2.startNodeAt = function(pos, loc) { + return new Node(this, pos, loc) + }; - const out = new Array(size); - for (let i = out.length - 1; i >= 0; i--) { - out[i] = num & 0xff; - num >>= 8; - } - if(out[0] & 0x80) { - out.unshift(0); + // Finish an AST node, adding `type` and `end` properties. + + function finishNodeAt(node, type, pos, loc) { + node.type = type; + node.end = pos; + if (this.options.locations) + { node.loc.end = loc; } + if (this.options.ranges) + { node.range[1] = pos; } + return node } - return this._createEncoderBuffer(Buffer.from(out)); -}; + pp$2.finishNode = function(node, type) { + return finishNodeAt.call(this, node, type, this.lastTokEnd, this.lastTokEndLoc) + }; -DERNode.prototype._encodeBool = function encodeBool(value) { - return this._createEncoderBuffer(value ? 0xff : 0); -}; + // Finish node at given position -DERNode.prototype._use = function use(entity, obj) { - if (typeof entity === 'function') - entity = entity(obj); - return entity._getEncoder('der').tree; -}; + pp$2.finishNodeAt = function(node, type, pos, loc) { + return finishNodeAt.call(this, node, type, pos, loc) + }; -DERNode.prototype._skipDefault = function skipDefault(dataBuffer, reporter, parent) { - const state = this._baseState; - let i; - if (state['default'] === null) - return false; + pp$2.copyNode = function(node) { + var newNode = new Node(this, node.start, this.startLoc); + for (var prop in node) { newNode[prop] = node[prop]; } + return newNode + }; - const data = dataBuffer.join(); - if (state.defaultBuffer === undefined) - state.defaultBuffer = this._encodeValue(state['default'], reporter, parent).join(); + // This file contains Unicode properties extracted from the ECMAScript + // specification. The lists are extracted like so: + // $$('#table-binary-unicode-properties > figure > table > tbody > tr > td:nth-child(1) code').map(el => el.innerText) + + // #table-binary-unicode-properties + var ecma9BinaryProperties = "ASCII ASCII_Hex_Digit AHex Alphabetic Alpha Any Assigned Bidi_Control Bidi_C Bidi_Mirrored Bidi_M Case_Ignorable CI Cased Changes_When_Casefolded CWCF Changes_When_Casemapped CWCM Changes_When_Lowercased CWL Changes_When_NFKC_Casefolded CWKCF Changes_When_Titlecased CWT Changes_When_Uppercased CWU Dash Default_Ignorable_Code_Point DI Deprecated Dep Diacritic Dia Emoji Emoji_Component Emoji_Modifier Emoji_Modifier_Base Emoji_Presentation Extender Ext Grapheme_Base Gr_Base Grapheme_Extend Gr_Ext Hex_Digit Hex IDS_Binary_Operator IDSB IDS_Trinary_Operator IDST ID_Continue IDC ID_Start IDS Ideographic Ideo Join_Control Join_C Logical_Order_Exception LOE Lowercase Lower Math Noncharacter_Code_Point NChar Pattern_Syntax Pat_Syn Pattern_White_Space Pat_WS Quotation_Mark QMark Radical Regional_Indicator RI Sentence_Terminal STerm Soft_Dotted SD Terminal_Punctuation Term Unified_Ideograph UIdeo Uppercase Upper Variation_Selector VS White_Space space XID_Continue XIDC XID_Start XIDS"; + var ecma10BinaryProperties = ecma9BinaryProperties + " Extended_Pictographic"; + var ecma11BinaryProperties = ecma10BinaryProperties; + var ecma12BinaryProperties = ecma11BinaryProperties + " EBase EComp EMod EPres ExtPict"; + var ecma13BinaryProperties = ecma12BinaryProperties; + var unicodeBinaryProperties = { + 9: ecma9BinaryProperties, + 10: ecma10BinaryProperties, + 11: ecma11BinaryProperties, + 12: ecma12BinaryProperties, + 13: ecma13BinaryProperties + }; - if (data.length !== state.defaultBuffer.length) - return false; + // #table-unicode-general-category-values + var unicodeGeneralCategoryValues = "Cased_Letter LC Close_Punctuation Pe Connector_Punctuation Pc Control Cc cntrl Currency_Symbol Sc Dash_Punctuation Pd Decimal_Number Nd digit Enclosing_Mark Me Final_Punctuation Pf Format Cf Initial_Punctuation Pi Letter L Letter_Number Nl Line_Separator Zl Lowercase_Letter Ll Mark M Combining_Mark Math_Symbol Sm Modifier_Letter Lm Modifier_Symbol Sk Nonspacing_Mark Mn Number N Open_Punctuation Ps Other C Other_Letter Lo Other_Number No Other_Punctuation Po Other_Symbol So Paragraph_Separator Zp Private_Use Co Punctuation P punct Separator Z Space_Separator Zs Spacing_Mark Mc Surrogate Cs Symbol S Titlecase_Letter Lt Unassigned Cn Uppercase_Letter Lu"; + + // #table-unicode-script-values + var ecma9ScriptValues = "Adlam Adlm Ahom Anatolian_Hieroglyphs Hluw Arabic Arab Armenian Armn Avestan Avst Balinese Bali Bamum Bamu Bassa_Vah Bass Batak Batk Bengali Beng Bhaiksuki Bhks Bopomofo Bopo Brahmi Brah Braille Brai Buginese Bugi Buhid Buhd Canadian_Aboriginal Cans Carian Cari Caucasian_Albanian Aghb Chakma Cakm Cham Cham Cherokee Cher Common Zyyy Coptic Copt Qaac Cuneiform Xsux Cypriot Cprt Cyrillic Cyrl Deseret Dsrt Devanagari Deva Duployan Dupl Egyptian_Hieroglyphs Egyp Elbasan Elba Ethiopic Ethi Georgian Geor Glagolitic Glag Gothic Goth Grantha Gran Greek Grek Gujarati Gujr Gurmukhi Guru Han Hani Hangul Hang Hanunoo Hano Hatran Hatr Hebrew Hebr Hiragana Hira Imperial_Aramaic Armi Inherited Zinh Qaai Inscriptional_Pahlavi Phli Inscriptional_Parthian Prti Javanese Java Kaithi Kthi Kannada Knda Katakana Kana Kayah_Li Kali Kharoshthi Khar Khmer Khmr Khojki Khoj Khudawadi Sind Lao Laoo Latin Latn Lepcha Lepc Limbu Limb Linear_A Lina Linear_B Linb Lisu Lisu Lycian Lyci Lydian Lydi Mahajani Mahj Malayalam Mlym Mandaic Mand Manichaean Mani Marchen Marc Masaram_Gondi Gonm Meetei_Mayek Mtei Mende_Kikakui Mend Meroitic_Cursive Merc Meroitic_Hieroglyphs Mero Miao Plrd Modi Mongolian Mong Mro Mroo Multani Mult Myanmar Mymr Nabataean Nbat New_Tai_Lue Talu Newa Newa Nko Nkoo Nushu Nshu Ogham Ogam Ol_Chiki Olck Old_Hungarian Hung Old_Italic Ital Old_North_Arabian Narb Old_Permic Perm Old_Persian Xpeo Old_South_Arabian Sarb Old_Turkic Orkh Oriya Orya Osage Osge Osmanya Osma Pahawh_Hmong Hmng Palmyrene Palm Pau_Cin_Hau Pauc Phags_Pa Phag Phoenician Phnx Psalter_Pahlavi Phlp Rejang Rjng Runic Runr Samaritan Samr Saurashtra Saur Sharada Shrd Shavian Shaw Siddham Sidd SignWriting Sgnw Sinhala Sinh Sora_Sompeng Sora Soyombo Soyo Sundanese Sund Syloti_Nagri Sylo Syriac Syrc Tagalog Tglg Tagbanwa Tagb Tai_Le Tale Tai_Tham Lana Tai_Viet Tavt Takri Takr Tamil Taml Tangut Tang Telugu Telu Thaana Thaa Thai Thai Tibetan Tibt Tifinagh Tfng Tirhuta Tirh Ugaritic Ugar Vai Vaii Warang_Citi Wara Yi Yiii Zanabazar_Square Zanb"; + var ecma10ScriptValues = ecma9ScriptValues + " Dogra Dogr Gunjala_Gondi Gong Hanifi_Rohingya Rohg Makasar Maka Medefaidrin Medf Old_Sogdian Sogo Sogdian Sogd"; + var ecma11ScriptValues = ecma10ScriptValues + " Elymaic Elym Nandinagari Nand Nyiakeng_Puachue_Hmong Hmnp Wancho Wcho"; + var ecma12ScriptValues = ecma11ScriptValues + " Chorasmian Chrs Diak Dives_Akuru Khitan_Small_Script Kits Yezi Yezidi"; + var ecma13ScriptValues = ecma12ScriptValues + " Cypro_Minoan Cpmn Old_Uyghur Ougr Tangsa Tnsa Toto Vithkuqi Vith"; + var unicodeScriptValues = { + 9: ecma9ScriptValues, + 10: ecma10ScriptValues, + 11: ecma11ScriptValues, + 12: ecma12ScriptValues, + 13: ecma13ScriptValues + }; - for (i=0; i < data.length; i++) - if (data[i] !== state.defaultBuffer[i]) - return false; + var data = {}; + function buildUnicodeData(ecmaVersion) { + var d = data[ecmaVersion] = { + binary: wordsRegexp(unicodeBinaryProperties[ecmaVersion] + " " + unicodeGeneralCategoryValues), + nonBinary: { + General_Category: wordsRegexp(unicodeGeneralCategoryValues), + Script: wordsRegexp(unicodeScriptValues[ecmaVersion]) + } + }; + d.nonBinary.Script_Extensions = d.nonBinary.Script; - return true; -}; + d.nonBinary.gc = d.nonBinary.General_Category; + d.nonBinary.sc = d.nonBinary.Script; + d.nonBinary.scx = d.nonBinary.Script_Extensions; + } -// Utility methods + for (var i = 0, list = [9, 10, 11, 12, 13]; i < list.length; i += 1) { + var ecmaVersion = list[i]; -function encodeTag(tag, primitive, cls, reporter) { - let res; + buildUnicodeData(ecmaVersion); + } - if (tag === 'seqof') - tag = 'seq'; - else if (tag === 'setof') - tag = 'set'; + var pp$1 = Parser.prototype; + + var RegExpValidationState = function RegExpValidationState(parser) { + this.parser = parser; + this.validFlags = "gim" + (parser.options.ecmaVersion >= 6 ? "uy" : "") + (parser.options.ecmaVersion >= 9 ? "s" : "") + (parser.options.ecmaVersion >= 13 ? "d" : ""); + this.unicodeProperties = data[parser.options.ecmaVersion >= 13 ? 13 : parser.options.ecmaVersion]; + this.source = ""; + this.flags = ""; + this.start = 0; + this.switchU = false; + this.switchN = false; + this.pos = 0; + this.lastIntValue = 0; + this.lastStringValue = ""; + this.lastAssertionIsQuantifiable = false; + this.numCapturingParens = 0; + this.maxBackReference = 0; + this.groupNames = []; + this.backReferenceNames = []; + }; - if (der.tagByName.hasOwnProperty(tag)) - res = der.tagByName[tag]; - else if (typeof tag === 'number' && (tag | 0) === tag) - res = tag; - else - return reporter.error('Unknown tag: ' + tag); + RegExpValidationState.prototype.reset = function reset (start, pattern, flags) { + var unicode = flags.indexOf("u") !== -1; + this.start = start | 0; + this.source = pattern + ""; + this.flags = flags; + this.switchU = unicode && this.parser.options.ecmaVersion >= 6; + this.switchN = unicode && this.parser.options.ecmaVersion >= 9; + }; - if (res >= 0x1f) - return reporter.error('Multi-octet tag encoding unsupported'); + RegExpValidationState.prototype.raise = function raise (message) { + this.parser.raiseRecoverable(this.start, ("Invalid regular expression: /" + (this.source) + "/: " + message)); + }; - if (!primitive) - res |= 0x20; + // If u flag is given, this returns the code point at the index (it combines a surrogate pair). + // Otherwise, this returns the code unit of the index (can be a part of a surrogate pair). + RegExpValidationState.prototype.at = function at (i, forceU) { + if ( forceU === void 0 ) forceU = false; - res |= (der.tagClassByName[cls || 'universal'] << 6); + var s = this.source; + var l = s.length; + if (i >= l) { + return -1 + } + var c = s.charCodeAt(i); + if (!(forceU || this.switchU) || c <= 0xD7FF || c >= 0xE000 || i + 1 >= l) { + return c + } + var next = s.charCodeAt(i + 1); + return next >= 0xDC00 && next <= 0xDFFF ? (c << 10) + next - 0x35FDC00 : c + }; - return res; -} + RegExpValidationState.prototype.nextIndex = function nextIndex (i, forceU) { + if ( forceU === void 0 ) forceU = false; + var s = this.source; + var l = s.length; + if (i >= l) { + return l + } + var c = s.charCodeAt(i), next; + if (!(forceU || this.switchU) || c <= 0xD7FF || c >= 0xE000 || i + 1 >= l || + (next = s.charCodeAt(i + 1)) < 0xDC00 || next > 0xDFFF) { + return i + 1 + } + return i + 2 + }; -/***/ }), + RegExpValidationState.prototype.current = function current (forceU) { + if ( forceU === void 0 ) forceU = false; -/***/ 9083: -/***/ ((__unused_webpack_module, exports, __nccwpck_require__) => { + return this.at(this.pos, forceU) + }; -"use strict"; + RegExpValidationState.prototype.lookahead = function lookahead (forceU) { + if ( forceU === void 0 ) forceU = false; + return this.at(this.nextIndex(this.pos, forceU), forceU) + }; -const encoders = exports; + RegExpValidationState.prototype.advance = function advance (forceU) { + if ( forceU === void 0 ) forceU = false; -encoders.der = __nccwpck_require__(5769); -encoders.pem = __nccwpck_require__(279); + this.pos = this.nextIndex(this.pos, forceU); + }; + RegExpValidationState.prototype.eat = function eat (ch, forceU) { + if ( forceU === void 0 ) forceU = false; -/***/ }), + if (this.current(forceU) === ch) { + this.advance(forceU); + return true + } + return false + }; -/***/ 279: -/***/ ((module, __unused_webpack_exports, __nccwpck_require__) => { + function codePointToString$1(ch) { + if (ch <= 0xFFFF) { return String.fromCharCode(ch) } + ch -= 0x10000; + return String.fromCharCode((ch >> 10) + 0xD800, (ch & 0x03FF) + 0xDC00) + } -"use strict"; + /** + * Validate the flags part of a given RegExpLiteral. + * + * @param {RegExpValidationState} state The state to validate RegExp. + * @returns {void} + */ + pp$1.validateRegExpFlags = function(state) { + var validFlags = state.validFlags; + var flags = state.flags; + + for (var i = 0; i < flags.length; i++) { + var flag = flags.charAt(i); + if (validFlags.indexOf(flag) === -1) { + this.raise(state.start, "Invalid regular expression flag"); + } + if (flags.indexOf(flag, i + 1) > -1) { + this.raise(state.start, "Duplicate regular expression flag"); + } + } + }; + /** + * Validate the pattern part of a given RegExpLiteral. + * + * @param {RegExpValidationState} state The state to validate RegExp. + * @returns {void} + */ + pp$1.validateRegExpPattern = function(state) { + this.regexp_pattern(state); + + // The goal symbol for the parse is |Pattern[~U, ~N]|. If the result of + // parsing contains a |GroupName|, reparse with the goal symbol + // |Pattern[~U, +N]| and use this result instead. Throw a *SyntaxError* + // exception if _P_ did not conform to the grammar, if any elements of _P_ + // were not matched by the parse, or if any Early Error conditions exist. + if (!state.switchN && this.options.ecmaVersion >= 9 && state.groupNames.length > 0) { + state.switchN = true; + this.regexp_pattern(state); + } + }; -const inherits = __nccwpck_require__(4124); + // https://www.ecma-international.org/ecma-262/8.0/#prod-Pattern + pp$1.regexp_pattern = function(state) { + state.pos = 0; + state.lastIntValue = 0; + state.lastStringValue = ""; + state.lastAssertionIsQuantifiable = false; + state.numCapturingParens = 0; + state.maxBackReference = 0; + state.groupNames.length = 0; + state.backReferenceNames.length = 0; + + this.regexp_disjunction(state); + + if (state.pos !== state.source.length) { + // Make the same messages as V8. + if (state.eat(0x29 /* ) */)) { + state.raise("Unmatched ')'"); + } + if (state.eat(0x5D /* ] */) || state.eat(0x7D /* } */)) { + state.raise("Lone quantifier brackets"); + } + } + if (state.maxBackReference > state.numCapturingParens) { + state.raise("Invalid escape"); + } + for (var i = 0, list = state.backReferenceNames; i < list.length; i += 1) { + var name = list[i]; -const DEREncoder = __nccwpck_require__(5769); - -function PEMEncoder(entity) { - DEREncoder.call(this, entity); - this.enc = 'pem'; -} -inherits(PEMEncoder, DEREncoder); -module.exports = PEMEncoder; - -PEMEncoder.prototype.encode = function encode(data, options) { - const buf = DEREncoder.prototype.encode.call(this, data); - - const p = buf.toString('base64'); - const out = [ '-----BEGIN ' + options.label + '-----' ]; - for (let i = 0; i < p.length; i += 64) - out.push(p.slice(i, i + 64)); - out.push('-----END ' + options.label + '-----'); - return out.join('\n'); -}; + if (state.groupNames.indexOf(name) === -1) { + state.raise("Invalid named capture referenced"); + } + } + }; + // https://www.ecma-international.org/ecma-262/8.0/#prod-Disjunction + pp$1.regexp_disjunction = function(state) { + this.regexp_alternative(state); + while (state.eat(0x7C /* | */)) { + this.regexp_alternative(state); + } -/***/ }), + // Make the same message as V8. + if (this.regexp_eatQuantifier(state, true)) { + state.raise("Nothing to repeat"); + } + if (state.eat(0x7B /* { */)) { + state.raise("Lone quantifier brackets"); + } + }; -/***/ 6641: -/***/ (function(module, __unused_webpack_exports, __nccwpck_require__) { + // https://www.ecma-international.org/ecma-262/8.0/#prod-Alternative + pp$1.regexp_alternative = function(state) { + while (state.pos < state.source.length && this.regexp_eatTerm(state)) + { } + }; -/* module decorator */ module = __nccwpck_require__.nmd(module); -(function (module, exports) { - 'use strict'; + // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-Term + pp$1.regexp_eatTerm = function(state) { + if (this.regexp_eatAssertion(state)) { + // Handle `QuantifiableAssertion Quantifier` alternative. + // `state.lastAssertionIsQuantifiable` is true if the last eaten Assertion + // is a QuantifiableAssertion. + if (state.lastAssertionIsQuantifiable && this.regexp_eatQuantifier(state)) { + // Make the same message as V8. + if (state.switchU) { + state.raise("Invalid quantifier"); + } + } + return true + } - // Utils - function assert (val, msg) { - if (!val) throw new Error(msg || 'Assertion failed'); - } + if (state.switchU ? this.regexp_eatAtom(state) : this.regexp_eatExtendedAtom(state)) { + this.regexp_eatQuantifier(state); + return true + } - // Could use `inherits` module, but don't want to move from single file - // architecture yet. - function inherits (ctor, superCtor) { - ctor.super_ = superCtor; - var TempCtor = function () {}; - TempCtor.prototype = superCtor.prototype; - ctor.prototype = new TempCtor(); - ctor.prototype.constructor = ctor; - } + return false + }; - // BN + // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-Assertion + pp$1.regexp_eatAssertion = function(state) { + var start = state.pos; + state.lastAssertionIsQuantifiable = false; - function BN (number, base, endian) { - if (BN.isBN(number)) { - return number; + // ^, $ + if (state.eat(0x5E /* ^ */) || state.eat(0x24 /* $ */)) { + return true } - this.negative = 0; - this.words = null; - this.length = 0; - - // Reduction context - this.red = null; - - if (number !== null) { - if (base === 'le' || base === 'be') { - endian = base; - base = 10; + // \b \B + if (state.eat(0x5C /* \ */)) { + if (state.eat(0x42 /* B */) || state.eat(0x62 /* b */)) { + return true } + state.pos = start; + } - this._init(number || 0, base || 10, endian || 'be'); + // Lookahead / Lookbehind + if (state.eat(0x28 /* ( */) && state.eat(0x3F /* ? */)) { + var lookbehind = false; + if (this.options.ecmaVersion >= 9) { + lookbehind = state.eat(0x3C /* < */); + } + if (state.eat(0x3D /* = */) || state.eat(0x21 /* ! */)) { + this.regexp_disjunction(state); + if (!state.eat(0x29 /* ) */)) { + state.raise("Unterminated group"); + } + state.lastAssertionIsQuantifiable = !lookbehind; + return true + } } - } - if (typeof module === 'object') { - module.exports = BN; - } else { - exports.BN = BN; - } - BN.BN = BN; - BN.wordSize = 26; + state.pos = start; + return false + }; - var Buffer; - try { - if (typeof window !== 'undefined' && typeof window.Buffer !== 'undefined') { - Buffer = window.Buffer; - } else { - Buffer = (__nccwpck_require__(4300).Buffer); - } - } catch (e) { - } + // https://www.ecma-international.org/ecma-262/8.0/#prod-Quantifier + pp$1.regexp_eatQuantifier = function(state, noError) { + if ( noError === void 0 ) noError = false; - BN.isBN = function isBN (num) { - if (num instanceof BN) { - return true; + if (this.regexp_eatQuantifierPrefix(state, noError)) { + state.eat(0x3F /* ? */); + return true } + return false + }; - return num !== null && typeof num === 'object' && - num.constructor.wordSize === BN.wordSize && Array.isArray(num.words); + // https://www.ecma-international.org/ecma-262/8.0/#prod-QuantifierPrefix + pp$1.regexp_eatQuantifierPrefix = function(state, noError) { + return ( + state.eat(0x2A /* * */) || + state.eat(0x2B /* + */) || + state.eat(0x3F /* ? */) || + this.regexp_eatBracedQuantifier(state, noError) + ) + }; + pp$1.regexp_eatBracedQuantifier = function(state, noError) { + var start = state.pos; + if (state.eat(0x7B /* { */)) { + var min = 0, max = -1; + if (this.regexp_eatDecimalDigits(state)) { + min = state.lastIntValue; + if (state.eat(0x2C /* , */) && this.regexp_eatDecimalDigits(state)) { + max = state.lastIntValue; + } + if (state.eat(0x7D /* } */)) { + // SyntaxError in https://www.ecma-international.org/ecma-262/8.0/#sec-term + if (max !== -1 && max < min && !noError) { + state.raise("numbers out of order in {} quantifier"); + } + return true + } + } + if (state.switchU && !noError) { + state.raise("Incomplete quantifier"); + } + state.pos = start; + } + return false }; - BN.max = function max (left, right) { - if (left.cmp(right) > 0) return left; - return right; + // https://www.ecma-international.org/ecma-262/8.0/#prod-Atom + pp$1.regexp_eatAtom = function(state) { + return ( + this.regexp_eatPatternCharacters(state) || + state.eat(0x2E /* . */) || + this.regexp_eatReverseSolidusAtomEscape(state) || + this.regexp_eatCharacterClass(state) || + this.regexp_eatUncapturingGroup(state) || + this.regexp_eatCapturingGroup(state) + ) + }; + pp$1.regexp_eatReverseSolidusAtomEscape = function(state) { + var start = state.pos; + if (state.eat(0x5C /* \ */)) { + if (this.regexp_eatAtomEscape(state)) { + return true + } + state.pos = start; + } + return false + }; + pp$1.regexp_eatUncapturingGroup = function(state) { + var start = state.pos; + if (state.eat(0x28 /* ( */)) { + if (state.eat(0x3F /* ? */) && state.eat(0x3A /* : */)) { + this.regexp_disjunction(state); + if (state.eat(0x29 /* ) */)) { + return true + } + state.raise("Unterminated group"); + } + state.pos = start; + } + return false + }; + pp$1.regexp_eatCapturingGroup = function(state) { + if (state.eat(0x28 /* ( */)) { + if (this.options.ecmaVersion >= 9) { + this.regexp_groupSpecifier(state); + } else if (state.current() === 0x3F /* ? */) { + state.raise("Invalid group"); + } + this.regexp_disjunction(state); + if (state.eat(0x29 /* ) */)) { + state.numCapturingParens += 1; + return true + } + state.raise("Unterminated group"); + } + return false }; - BN.min = function min (left, right) { - if (left.cmp(right) < 0) return left; - return right; + // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-ExtendedAtom + pp$1.regexp_eatExtendedAtom = function(state) { + return ( + state.eat(0x2E /* . */) || + this.regexp_eatReverseSolidusAtomEscape(state) || + this.regexp_eatCharacterClass(state) || + this.regexp_eatUncapturingGroup(state) || + this.regexp_eatCapturingGroup(state) || + this.regexp_eatInvalidBracedQuantifier(state) || + this.regexp_eatExtendedPatternCharacter(state) + ) }; - BN.prototype._init = function init (number, base, endian) { - if (typeof number === 'number') { - return this._initNumber(number, base, endian); + // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-InvalidBracedQuantifier + pp$1.regexp_eatInvalidBracedQuantifier = function(state) { + if (this.regexp_eatBracedQuantifier(state, true)) { + state.raise("Nothing to repeat"); } + return false + }; - if (typeof number === 'object') { - return this._initArray(number, base, endian); + // https://www.ecma-international.org/ecma-262/8.0/#prod-SyntaxCharacter + pp$1.regexp_eatSyntaxCharacter = function(state) { + var ch = state.current(); + if (isSyntaxCharacter(ch)) { + state.lastIntValue = ch; + state.advance(); + return true } + return false + }; + function isSyntaxCharacter(ch) { + return ( + ch === 0x24 /* $ */ || + ch >= 0x28 /* ( */ && ch <= 0x2B /* + */ || + ch === 0x2E /* . */ || + ch === 0x3F /* ? */ || + ch >= 0x5B /* [ */ && ch <= 0x5E /* ^ */ || + ch >= 0x7B /* { */ && ch <= 0x7D /* } */ + ) + } - if (base === 'hex') { - base = 16; + // https://www.ecma-international.org/ecma-262/8.0/#prod-PatternCharacter + // But eat eager. + pp$1.regexp_eatPatternCharacters = function(state) { + var start = state.pos; + var ch = 0; + while ((ch = state.current()) !== -1 && !isSyntaxCharacter(ch)) { + state.advance(); } - assert(base === (base | 0) && base >= 2 && base <= 36); + return state.pos !== start + }; - number = number.toString().replace(/\s+/g, ''); - var start = 0; - if (number[0] === '-') { - start++; - this.negative = 1; + // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-ExtendedPatternCharacter + pp$1.regexp_eatExtendedPatternCharacter = function(state) { + var ch = state.current(); + if ( + ch !== -1 && + ch !== 0x24 /* $ */ && + !(ch >= 0x28 /* ( */ && ch <= 0x2B /* + */) && + ch !== 0x2E /* . */ && + ch !== 0x3F /* ? */ && + ch !== 0x5B /* [ */ && + ch !== 0x5E /* ^ */ && + ch !== 0x7C /* | */ + ) { + state.advance(); + return true } + return false + }; - if (start < number.length) { - if (base === 16) { - this._parseHex(number, start, endian); - } else { - this._parseBase(number, base, start); - if (endian === 'le') { - this._initArray(this.toArray(), base, endian); + // GroupSpecifier :: + // [empty] + // `?` GroupName + pp$1.regexp_groupSpecifier = function(state) { + if (state.eat(0x3F /* ? */)) { + if (this.regexp_eatGroupName(state)) { + if (state.groupNames.indexOf(state.lastStringValue) !== -1) { + state.raise("Duplicate capture group name"); } + state.groupNames.push(state.lastStringValue); + return } + state.raise("Invalid group"); } }; - BN.prototype._initNumber = function _initNumber (number, base, endian) { - if (number < 0) { - this.negative = 1; - number = -number; + // GroupName :: + // `<` RegExpIdentifierName `>` + // Note: this updates `state.lastStringValue` property with the eaten name. + pp$1.regexp_eatGroupName = function(state) { + state.lastStringValue = ""; + if (state.eat(0x3C /* < */)) { + if (this.regexp_eatRegExpIdentifierName(state) && state.eat(0x3E /* > */)) { + return true + } + state.raise("Invalid capture group name"); } - if (number < 0x4000000) { - this.words = [ number & 0x3ffffff ]; - this.length = 1; - } else if (number < 0x10000000000000) { - this.words = [ - number & 0x3ffffff, - (number / 0x4000000) & 0x3ffffff - ]; - this.length = 2; - } else { - assert(number < 0x20000000000000); // 2 ^ 53 (unsafe) - this.words = [ - number & 0x3ffffff, - (number / 0x4000000) & 0x3ffffff, - 1 - ]; - this.length = 3; + return false + }; + + // RegExpIdentifierName :: + // RegExpIdentifierStart + // RegExpIdentifierName RegExpIdentifierPart + // Note: this updates `state.lastStringValue` property with the eaten name. + pp$1.regexp_eatRegExpIdentifierName = function(state) { + state.lastStringValue = ""; + if (this.regexp_eatRegExpIdentifierStart(state)) { + state.lastStringValue += codePointToString$1(state.lastIntValue); + while (this.regexp_eatRegExpIdentifierPart(state)) { + state.lastStringValue += codePointToString$1(state.lastIntValue); + } + return true } + return false + }; - if (endian !== 'le') return; + // RegExpIdentifierStart :: + // UnicodeIDStart + // `$` + // `_` + // `\` RegExpUnicodeEscapeSequence[+U] + pp$1.regexp_eatRegExpIdentifierStart = function(state) { + var start = state.pos; + var forceU = this.options.ecmaVersion >= 11; + var ch = state.current(forceU); + state.advance(forceU); + + if (ch === 0x5C /* \ */ && this.regexp_eatRegExpUnicodeEscapeSequence(state, forceU)) { + ch = state.lastIntValue; + } + if (isRegExpIdentifierStart(ch)) { + state.lastIntValue = ch; + return true + } - // Reverse the bytes - this._initArray(this.toArray(), base, endian); + state.pos = start; + return false }; + function isRegExpIdentifierStart(ch) { + return isIdentifierStart(ch, true) || ch === 0x24 /* $ */ || ch === 0x5F /* _ */ + } - BN.prototype._initArray = function _initArray (number, base, endian) { - // Perhaps a Uint8Array - assert(typeof number.length === 'number'); - if (number.length <= 0) { - this.words = [ 0 ]; - this.length = 1; - return this; + // RegExpIdentifierPart :: + // UnicodeIDContinue + // `$` + // `_` + // `\` RegExpUnicodeEscapeSequence[+U] + // + // + pp$1.regexp_eatRegExpIdentifierPart = function(state) { + var start = state.pos; + var forceU = this.options.ecmaVersion >= 11; + var ch = state.current(forceU); + state.advance(forceU); + + if (ch === 0x5C /* \ */ && this.regexp_eatRegExpUnicodeEscapeSequence(state, forceU)) { + ch = state.lastIntValue; } - - this.length = Math.ceil(number.length / 3); - this.words = new Array(this.length); - for (var i = 0; i < this.length; i++) { - this.words[i] = 0; + if (isRegExpIdentifierPart(ch)) { + state.lastIntValue = ch; + return true } - var j, w; - var off = 0; - if (endian === 'be') { - for (i = number.length - 1, j = 0; i >= 0; i -= 3) { - w = number[i] | (number[i - 1] << 8) | (number[i - 2] << 16); - this.words[j] |= (w << off) & 0x3ffffff; - this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff; - off += 24; - if (off >= 26) { - off -= 26; - j++; - } - } - } else if (endian === 'le') { - for (i = 0, j = 0; i < number.length; i += 3) { - w = number[i] | (number[i + 1] << 8) | (number[i + 2] << 16); - this.words[j] |= (w << off) & 0x3ffffff; - this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff; - off += 24; - if (off >= 26) { - off -= 26; - j++; - } - } - } - return this.strip(); + state.pos = start; + return false }; + function isRegExpIdentifierPart(ch) { + return isIdentifierChar(ch, true) || ch === 0x24 /* $ */ || ch === 0x5F /* _ */ || ch === 0x200C /* */ || ch === 0x200D /* */ + } - function parseHex4Bits (string, index) { - var c = string.charCodeAt(index); - // 'A' - 'F' - if (c >= 65 && c <= 70) { - return c - 55; - // 'a' - 'f' - } else if (c >= 97 && c <= 102) { - return c - 87; - // '0' - '9' - } else { - return (c - 48) & 0xf; + // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-AtomEscape + pp$1.regexp_eatAtomEscape = function(state) { + if ( + this.regexp_eatBackReference(state) || + this.regexp_eatCharacterClassEscape(state) || + this.regexp_eatCharacterEscape(state) || + (state.switchN && this.regexp_eatKGroupName(state)) + ) { + return true } - } + if (state.switchU) { + // Make the same message as V8. + if (state.current() === 0x63 /* c */) { + state.raise("Invalid unicode escape"); + } + state.raise("Invalid escape"); + } + return false + }; + pp$1.regexp_eatBackReference = function(state) { + var start = state.pos; + if (this.regexp_eatDecimalEscape(state)) { + var n = state.lastIntValue; + if (state.switchU) { + // For SyntaxError in https://www.ecma-international.org/ecma-262/8.0/#sec-atomescape + if (n > state.maxBackReference) { + state.maxBackReference = n; + } + return true + } + if (n <= state.numCapturingParens) { + return true + } + state.pos = start; + } + return false + }; + pp$1.regexp_eatKGroupName = function(state) { + if (state.eat(0x6B /* k */)) { + if (this.regexp_eatGroupName(state)) { + state.backReferenceNames.push(state.lastStringValue); + return true + } + state.raise("Invalid named reference"); + } + return false + }; - function parseHexByte (string, lowerBound, index) { - var r = parseHex4Bits(string, index); - if (index - 1 >= lowerBound) { - r |= parseHex4Bits(string, index - 1) << 4; + // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-CharacterEscape + pp$1.regexp_eatCharacterEscape = function(state) { + return ( + this.regexp_eatControlEscape(state) || + this.regexp_eatCControlLetter(state) || + this.regexp_eatZero(state) || + this.regexp_eatHexEscapeSequence(state) || + this.regexp_eatRegExpUnicodeEscapeSequence(state, false) || + (!state.switchU && this.regexp_eatLegacyOctalEscapeSequence(state)) || + this.regexp_eatIdentityEscape(state) + ) + }; + pp$1.regexp_eatCControlLetter = function(state) { + var start = state.pos; + if (state.eat(0x63 /* c */)) { + if (this.regexp_eatControlLetter(state)) { + return true + } + state.pos = start; } - return r; - } + return false + }; + pp$1.regexp_eatZero = function(state) { + if (state.current() === 0x30 /* 0 */ && !isDecimalDigit(state.lookahead())) { + state.lastIntValue = 0; + state.advance(); + return true + } + return false + }; - BN.prototype._parseHex = function _parseHex (number, start, endian) { - // Create possibly bigger array to ensure that it fits the number - this.length = Math.ceil((number.length - start) / 6); - this.words = new Array(this.length); - for (var i = 0; i < this.length; i++) { - this.words[i] = 0; + // https://www.ecma-international.org/ecma-262/8.0/#prod-ControlEscape + pp$1.regexp_eatControlEscape = function(state) { + var ch = state.current(); + if (ch === 0x74 /* t */) { + state.lastIntValue = 0x09; /* \t */ + state.advance(); + return true + } + if (ch === 0x6E /* n */) { + state.lastIntValue = 0x0A; /* \n */ + state.advance(); + return true + } + if (ch === 0x76 /* v */) { + state.lastIntValue = 0x0B; /* \v */ + state.advance(); + return true + } + if (ch === 0x66 /* f */) { + state.lastIntValue = 0x0C; /* \f */ + state.advance(); + return true + } + if (ch === 0x72 /* r */) { + state.lastIntValue = 0x0D; /* \r */ + state.advance(); + return true } + return false + }; - // 24-bits chunks - var off = 0; - var j = 0; + // https://www.ecma-international.org/ecma-262/8.0/#prod-ControlLetter + pp$1.regexp_eatControlLetter = function(state) { + var ch = state.current(); + if (isControlLetter(ch)) { + state.lastIntValue = ch % 0x20; + state.advance(); + return true + } + return false + }; + function isControlLetter(ch) { + return ( + (ch >= 0x41 /* A */ && ch <= 0x5A /* Z */) || + (ch >= 0x61 /* a */ && ch <= 0x7A /* z */) + ) + } - var w; - if (endian === 'be') { - for (i = number.length - 1; i >= start; i -= 2) { - w = parseHexByte(number, start, i) << off; - this.words[j] |= w & 0x3ffffff; - if (off >= 18) { - off -= 18; - j += 1; - this.words[j] |= w >>> 26; - } else { - off += 8; + // https://www.ecma-international.org/ecma-262/8.0/#prod-RegExpUnicodeEscapeSequence + pp$1.regexp_eatRegExpUnicodeEscapeSequence = function(state, forceU) { + if ( forceU === void 0 ) forceU = false; + + var start = state.pos; + var switchU = forceU || state.switchU; + + if (state.eat(0x75 /* u */)) { + if (this.regexp_eatFixedHexDigits(state, 4)) { + var lead = state.lastIntValue; + if (switchU && lead >= 0xD800 && lead <= 0xDBFF) { + var leadSurrogateEnd = state.pos; + if (state.eat(0x5C /* \ */) && state.eat(0x75 /* u */) && this.regexp_eatFixedHexDigits(state, 4)) { + var trail = state.lastIntValue; + if (trail >= 0xDC00 && trail <= 0xDFFF) { + state.lastIntValue = (lead - 0xD800) * 0x400 + (trail - 0xDC00) + 0x10000; + return true + } + } + state.pos = leadSurrogateEnd; + state.lastIntValue = lead; } + return true } - } else { - var parseLength = number.length - start; - for (i = parseLength % 2 === 0 ? start + 1 : start; i < number.length; i += 2) { - w = parseHexByte(number, start, i) << off; - this.words[j] |= w & 0x3ffffff; - if (off >= 18) { - off -= 18; - j += 1; - this.words[j] |= w >>> 26; - } else { - off += 8; - } + if ( + switchU && + state.eat(0x7B /* { */) && + this.regexp_eatHexDigits(state) && + state.eat(0x7D /* } */) && + isValidUnicode(state.lastIntValue) + ) { + return true } + if (switchU) { + state.raise("Invalid unicode escape"); + } + state.pos = start; } - this.strip(); + return false }; + function isValidUnicode(ch) { + return ch >= 0 && ch <= 0x10FFFF + } - function parseBase (str, start, end, mul) { - var r = 0; - var len = Math.min(str.length, end); - for (var i = start; i < len; i++) { - var c = str.charCodeAt(i) - 48; + // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-IdentityEscape + pp$1.regexp_eatIdentityEscape = function(state) { + if (state.switchU) { + if (this.regexp_eatSyntaxCharacter(state)) { + return true + } + if (state.eat(0x2F /* / */)) { + state.lastIntValue = 0x2F; /* / */ + return true + } + return false + } - r *= mul; + var ch = state.current(); + if (ch !== 0x63 /* c */ && (!state.switchN || ch !== 0x6B /* k */)) { + state.lastIntValue = ch; + state.advance(); + return true + } - // 'a' - if (c >= 49) { - r += c - 49 + 0xa; + return false + }; - // 'A' - } else if (c >= 17) { - r += c - 17 + 0xa; + // https://www.ecma-international.org/ecma-262/8.0/#prod-DecimalEscape + pp$1.regexp_eatDecimalEscape = function(state) { + state.lastIntValue = 0; + var ch = state.current(); + if (ch >= 0x31 /* 1 */ && ch <= 0x39 /* 9 */) { + do { + state.lastIntValue = 10 * state.lastIntValue + (ch - 0x30 /* 0 */); + state.advance(); + } while ((ch = state.current()) >= 0x30 /* 0 */ && ch <= 0x39 /* 9 */) + return true + } + return false + }; - // '0' - '9' - } else { - r += c; + // https://www.ecma-international.org/ecma-262/8.0/#prod-CharacterClassEscape + pp$1.regexp_eatCharacterClassEscape = function(state) { + var ch = state.current(); + + if (isCharacterClassEscape(ch)) { + state.lastIntValue = -1; + state.advance(); + return true + } + + if ( + state.switchU && + this.options.ecmaVersion >= 9 && + (ch === 0x50 /* P */ || ch === 0x70 /* p */) + ) { + state.lastIntValue = -1; + state.advance(); + if ( + state.eat(0x7B /* { */) && + this.regexp_eatUnicodePropertyValueExpression(state) && + state.eat(0x7D /* } */) + ) { + return true } + state.raise("Invalid property name"); } - return r; + + return false + }; + function isCharacterClassEscape(ch) { + return ( + ch === 0x64 /* d */ || + ch === 0x44 /* D */ || + ch === 0x73 /* s */ || + ch === 0x53 /* S */ || + ch === 0x77 /* w */ || + ch === 0x57 /* W */ + ) } - BN.prototype._parseBase = function _parseBase (number, base, start) { - // Initialize as zero - this.words = [ 0 ]; - this.length = 1; + // UnicodePropertyValueExpression :: + // UnicodePropertyName `=` UnicodePropertyValue + // LoneUnicodePropertyNameOrValue + pp$1.regexp_eatUnicodePropertyValueExpression = function(state) { + var start = state.pos; + + // UnicodePropertyName `=` UnicodePropertyValue + if (this.regexp_eatUnicodePropertyName(state) && state.eat(0x3D /* = */)) { + var name = state.lastStringValue; + if (this.regexp_eatUnicodePropertyValue(state)) { + var value = state.lastStringValue; + this.regexp_validateUnicodePropertyNameAndValue(state, name, value); + return true + } + } + state.pos = start; - // Find length of limb in base - for (var limbLen = 0, limbPow = 1; limbPow <= 0x3ffffff; limbPow *= base) { - limbLen++; + // LoneUnicodePropertyNameOrValue + if (this.regexp_eatLoneUnicodePropertyNameOrValue(state)) { + var nameOrValue = state.lastStringValue; + this.regexp_validateUnicodePropertyNameOrValue(state, nameOrValue); + return true } - limbLen--; - limbPow = (limbPow / base) | 0; + return false + }; + pp$1.regexp_validateUnicodePropertyNameAndValue = function(state, name, value) { + if (!hasOwn(state.unicodeProperties.nonBinary, name)) + { state.raise("Invalid property name"); } + if (!state.unicodeProperties.nonBinary[name].test(value)) + { state.raise("Invalid property value"); } + }; + pp$1.regexp_validateUnicodePropertyNameOrValue = function(state, nameOrValue) { + if (!state.unicodeProperties.binary.test(nameOrValue)) + { state.raise("Invalid property name"); } + }; - var total = number.length - start; - var mod = total % limbLen; - var end = Math.min(total, total - mod) + start; + // UnicodePropertyName :: + // UnicodePropertyNameCharacters + pp$1.regexp_eatUnicodePropertyName = function(state) { + var ch = 0; + state.lastStringValue = ""; + while (isUnicodePropertyNameCharacter(ch = state.current())) { + state.lastStringValue += codePointToString$1(ch); + state.advance(); + } + return state.lastStringValue !== "" + }; + function isUnicodePropertyNameCharacter(ch) { + return isControlLetter(ch) || ch === 0x5F /* _ */ + } - var word = 0; - for (var i = start; i < end; i += limbLen) { - word = parseBase(number, i, i + limbLen, base); + // UnicodePropertyValue :: + // UnicodePropertyValueCharacters + pp$1.regexp_eatUnicodePropertyValue = function(state) { + var ch = 0; + state.lastStringValue = ""; + while (isUnicodePropertyValueCharacter(ch = state.current())) { + state.lastStringValue += codePointToString$1(ch); + state.advance(); + } + return state.lastStringValue !== "" + }; + function isUnicodePropertyValueCharacter(ch) { + return isUnicodePropertyNameCharacter(ch) || isDecimalDigit(ch) + } - this.imuln(limbPow); - if (this.words[0] + word < 0x4000000) { - this.words[0] += word; - } else { - this._iaddn(word); + // LoneUnicodePropertyNameOrValue :: + // UnicodePropertyValueCharacters + pp$1.regexp_eatLoneUnicodePropertyNameOrValue = function(state) { + return this.regexp_eatUnicodePropertyValue(state) + }; + + // https://www.ecma-international.org/ecma-262/8.0/#prod-CharacterClass + pp$1.regexp_eatCharacterClass = function(state) { + if (state.eat(0x5B /* [ */)) { + state.eat(0x5E /* ^ */); + this.regexp_classRanges(state); + if (state.eat(0x5D /* ] */)) { + return true } + // Unreachable since it threw "unterminated regular expression" error before. + state.raise("Unterminated character class"); } + return false + }; - if (mod !== 0) { - var pow = 1; - word = parseBase(number, i, number.length, base); - - for (i = 0; i < mod; i++) { - pow *= base; + // https://www.ecma-international.org/ecma-262/8.0/#prod-ClassRanges + // https://www.ecma-international.org/ecma-262/8.0/#prod-NonemptyClassRanges + // https://www.ecma-international.org/ecma-262/8.0/#prod-NonemptyClassRangesNoDash + pp$1.regexp_classRanges = function(state) { + while (this.regexp_eatClassAtom(state)) { + var left = state.lastIntValue; + if (state.eat(0x2D /* - */) && this.regexp_eatClassAtom(state)) { + var right = state.lastIntValue; + if (state.switchU && (left === -1 || right === -1)) { + state.raise("Invalid character class"); + } + if (left !== -1 && right !== -1 && left > right) { + state.raise("Range out of order in character class"); + } } + } + }; - this.imuln(pow); - if (this.words[0] + word < 0x4000000) { - this.words[0] += word; - } else { - this._iaddn(word); + // https://www.ecma-international.org/ecma-262/8.0/#prod-ClassAtom + // https://www.ecma-international.org/ecma-262/8.0/#prod-ClassAtomNoDash + pp$1.regexp_eatClassAtom = function(state) { + var start = state.pos; + + if (state.eat(0x5C /* \ */)) { + if (this.regexp_eatClassEscape(state)) { + return true + } + if (state.switchU) { + // Make the same message as V8. + var ch$1 = state.current(); + if (ch$1 === 0x63 /* c */ || isOctalDigit(ch$1)) { + state.raise("Invalid class escape"); + } + state.raise("Invalid escape"); } + state.pos = start; } - this.strip(); + var ch = state.current(); + if (ch !== 0x5D /* ] */) { + state.lastIntValue = ch; + state.advance(); + return true + } + + return false }; - BN.prototype.copy = function copy (dest) { - dest.words = new Array(this.length); - for (var i = 0; i < this.length; i++) { - dest.words[i] = this.words[i]; + // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-ClassEscape + pp$1.regexp_eatClassEscape = function(state) { + var start = state.pos; + + if (state.eat(0x62 /* b */)) { + state.lastIntValue = 0x08; /* */ + return true } - dest.length = this.length; - dest.negative = this.negative; - dest.red = this.red; - }; - BN.prototype.clone = function clone () { - var r = new BN(null); - this.copy(r); - return r; + if (state.switchU && state.eat(0x2D /* - */)) { + state.lastIntValue = 0x2D; /* - */ + return true + } + + if (!state.switchU && state.eat(0x63 /* c */)) { + if (this.regexp_eatClassControlLetter(state)) { + return true + } + state.pos = start; + } + + return ( + this.regexp_eatCharacterClassEscape(state) || + this.regexp_eatCharacterEscape(state) + ) }; - BN.prototype._expand = function _expand (size) { - while (this.length < size) { - this.words[this.length++] = 0; + // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-ClassControlLetter + pp$1.regexp_eatClassControlLetter = function(state) { + var ch = state.current(); + if (isDecimalDigit(ch) || ch === 0x5F /* _ */) { + state.lastIntValue = ch % 0x20; + state.advance(); + return true } - return this; + return false }; - // Remove leading `0` from `this` - BN.prototype.strip = function strip () { - while (this.length > 1 && this.words[this.length - 1] === 0) { - this.length--; + // https://www.ecma-international.org/ecma-262/8.0/#prod-HexEscapeSequence + pp$1.regexp_eatHexEscapeSequence = function(state) { + var start = state.pos; + if (state.eat(0x78 /* x */)) { + if (this.regexp_eatFixedHexDigits(state, 2)) { + return true + } + if (state.switchU) { + state.raise("Invalid escape"); + } + state.pos = start; } - return this._normSign(); + return false }; - BN.prototype._normSign = function _normSign () { - // -0 = 0 - if (this.length === 1 && this.words[0] === 0) { - this.negative = 0; + // https://www.ecma-international.org/ecma-262/8.0/#prod-DecimalDigits + pp$1.regexp_eatDecimalDigits = function(state) { + var start = state.pos; + var ch = 0; + state.lastIntValue = 0; + while (isDecimalDigit(ch = state.current())) { + state.lastIntValue = 10 * state.lastIntValue + (ch - 0x30 /* 0 */); + state.advance(); } - return this; + return state.pos !== start }; + function isDecimalDigit(ch) { + return ch >= 0x30 /* 0 */ && ch <= 0x39 /* 9 */ + } - BN.prototype.inspect = function inspect () { - return (this.red ? ''; + // https://www.ecma-international.org/ecma-262/8.0/#prod-HexDigits + pp$1.regexp_eatHexDigits = function(state) { + var start = state.pos; + var ch = 0; + state.lastIntValue = 0; + while (isHexDigit(ch = state.current())) { + state.lastIntValue = 16 * state.lastIntValue + hexToInt(ch); + state.advance(); + } + return state.pos !== start }; + function isHexDigit(ch) { + return ( + (ch >= 0x30 /* 0 */ && ch <= 0x39 /* 9 */) || + (ch >= 0x41 /* A */ && ch <= 0x46 /* F */) || + (ch >= 0x61 /* a */ && ch <= 0x66 /* f */) + ) + } + function hexToInt(ch) { + if (ch >= 0x41 /* A */ && ch <= 0x46 /* F */) { + return 10 + (ch - 0x41 /* A */) + } + if (ch >= 0x61 /* a */ && ch <= 0x66 /* f */) { + return 10 + (ch - 0x61 /* a */) + } + return ch - 0x30 /* 0 */ + } - /* - - var zeros = []; - var groupSizes = []; - var groupBases = []; + // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-LegacyOctalEscapeSequence + // Allows only 0-377(octal) i.e. 0-255(decimal). + pp$1.regexp_eatLegacyOctalEscapeSequence = function(state) { + if (this.regexp_eatOctalDigit(state)) { + var n1 = state.lastIntValue; + if (this.regexp_eatOctalDigit(state)) { + var n2 = state.lastIntValue; + if (n1 <= 3 && this.regexp_eatOctalDigit(state)) { + state.lastIntValue = n1 * 64 + n2 * 8 + state.lastIntValue; + } else { + state.lastIntValue = n1 * 8 + n2; + } + } else { + state.lastIntValue = n1; + } + return true + } + return false + }; - var s = ''; - var i = -1; - while (++i < BN.wordSize) { - zeros[i] = s; - s += '0'; - } - groupSizes[0] = 0; - groupSizes[1] = 0; - groupBases[0] = 0; - groupBases[1] = 0; - var base = 2 - 1; - while (++base < 36 + 1) { - var groupSize = 0; - var groupBase = 1; - while (groupBase < (1 << BN.wordSize) / base) { - groupBase *= base; - groupSize += 1; + // https://www.ecma-international.org/ecma-262/8.0/#prod-OctalDigit + pp$1.regexp_eatOctalDigit = function(state) { + var ch = state.current(); + if (isOctalDigit(ch)) { + state.lastIntValue = ch - 0x30; /* 0 */ + state.advance(); + return true } - groupSizes[base] = groupSize; - groupBases[base] = groupBase; + state.lastIntValue = 0; + return false + }; + function isOctalDigit(ch) { + return ch >= 0x30 /* 0 */ && ch <= 0x37 /* 7 */ } - */ + // https://www.ecma-international.org/ecma-262/8.0/#prod-Hex4Digits + // https://www.ecma-international.org/ecma-262/8.0/#prod-HexDigit + // And HexDigit HexDigit in https://www.ecma-international.org/ecma-262/8.0/#prod-HexEscapeSequence + pp$1.regexp_eatFixedHexDigits = function(state, length) { + var start = state.pos; + state.lastIntValue = 0; + for (var i = 0; i < length; ++i) { + var ch = state.current(); + if (!isHexDigit(ch)) { + state.pos = start; + return false + } + state.lastIntValue = 16 * state.lastIntValue + hexToInt(ch); + state.advance(); + } + return true + }; - var zeros = [ - '', - '0', - '00', - '000', - '0000', - '00000', - '000000', - '0000000', - '00000000', - '000000000', - '0000000000', - '00000000000', - '000000000000', - '0000000000000', - '00000000000000', - '000000000000000', - '0000000000000000', - '00000000000000000', - '000000000000000000', - '0000000000000000000', - '00000000000000000000', - '000000000000000000000', - '0000000000000000000000', - '00000000000000000000000', - '000000000000000000000000', - '0000000000000000000000000' - ]; + // Object type used to represent tokens. Note that normally, tokens + // simply exist as properties on the parser object. This is only + // used for the onToken callback and the external tokenizer. + + var Token = function Token(p) { + this.type = p.type; + this.value = p.value; + this.start = p.start; + this.end = p.end; + if (p.options.locations) + { this.loc = new SourceLocation(p, p.startLoc, p.endLoc); } + if (p.options.ranges) + { this.range = [p.start, p.end]; } + }; - var groupSizes = [ - 0, 0, - 25, 16, 12, 11, 10, 9, 8, - 8, 7, 7, 7, 7, 6, 6, - 6, 6, 6, 6, 6, 5, 5, - 5, 5, 5, 5, 5, 5, 5, - 5, 5, 5, 5, 5, 5, 5 - ]; + // ## Tokenizer - var groupBases = [ - 0, 0, - 33554432, 43046721, 16777216, 48828125, 60466176, 40353607, 16777216, - 43046721, 10000000, 19487171, 35831808, 62748517, 7529536, 11390625, - 16777216, 24137569, 34012224, 47045881, 64000000, 4084101, 5153632, - 6436343, 7962624, 9765625, 11881376, 14348907, 17210368, 20511149, - 24300000, 28629151, 33554432, 39135393, 45435424, 52521875, 60466176 - ]; + var pp = Parser.prototype; - BN.prototype.toString = function toString (base, padding) { - base = base || 10; - padding = padding | 0 || 1; + // Move to the next token - var out; - if (base === 16 || base === 'hex') { - out = ''; - var off = 0; - var carry = 0; - for (var i = 0; i < this.length; i++) { - var w = this.words[i]; - var word = (((w << off) | carry) & 0xffffff).toString(16); - carry = (w >>> (24 - off)) & 0xffffff; - if (carry !== 0 || i !== this.length - 1) { - out = zeros[6 - word.length] + word + out; - } else { - out = word + out; - } - off += 2; - if (off >= 26) { - off -= 26; - i--; + pp.next = function(ignoreEscapeSequenceInKeyword) { + if (!ignoreEscapeSequenceInKeyword && this.type.keyword && this.containsEsc) + { this.raiseRecoverable(this.start, "Escape sequence in keyword " + this.type.keyword); } + if (this.options.onToken) + { this.options.onToken(new Token(this)); } + + this.lastTokEnd = this.end; + this.lastTokStart = this.start; + this.lastTokEndLoc = this.endLoc; + this.lastTokStartLoc = this.startLoc; + this.nextToken(); + }; + + pp.getToken = function() { + this.next(); + return new Token(this) + }; + + // If we're in an ES6 environment, make parsers iterable + if (typeof Symbol !== "undefined") + { pp[Symbol.iterator] = function() { + var this$1$1 = this; + + return { + next: function () { + var token = this$1$1.getToken(); + return { + done: token.type === types$1.eof, + value: token + } } } - if (carry !== 0) { - out = carry.toString(16) + out; - } - while (out.length % padding !== 0) { - out = '0' + out; - } - if (this.negative !== 0) { - out = '-' + out; + }; } + + // Toggle strict mode. Re-reads the next number or string to please + // pedantic tests (`"use strict"; 010;` should fail). + + // Read a single token, updating the parser object's token-related + // properties. + + pp.nextToken = function() { + var curContext = this.curContext(); + if (!curContext || !curContext.preserveSpace) { this.skipSpace(); } + + this.start = this.pos; + if (this.options.locations) { this.startLoc = this.curPosition(); } + if (this.pos >= this.input.length) { return this.finishToken(types$1.eof) } + + if (curContext.override) { return curContext.override(this) } + else { this.readToken(this.fullCharCodeAtPos()); } + }; + + pp.readToken = function(code) { + // Identifier or keyword. '\uXXXX' sequences are allowed in + // identifiers, so '\' also dispatches to that. + if (isIdentifierStart(code, this.options.ecmaVersion >= 6) || code === 92 /* '\' */) + { return this.readWord() } + + return this.getTokenFromCode(code) + }; + + pp.fullCharCodeAtPos = function() { + var code = this.input.charCodeAt(this.pos); + if (code <= 0xd7ff || code >= 0xdc00) { return code } + var next = this.input.charCodeAt(this.pos + 1); + return next <= 0xdbff || next >= 0xe000 ? code : (code << 10) + next - 0x35fdc00 + }; + + pp.skipBlockComment = function() { + var startLoc = this.options.onComment && this.curPosition(); + var start = this.pos, end = this.input.indexOf("*/", this.pos += 2); + if (end === -1) { this.raise(this.pos - 2, "Unterminated comment"); } + this.pos = end + 2; + if (this.options.locations) { + for (var nextBreak = (void 0), pos = start; (nextBreak = nextLineBreak(this.input, pos, this.pos)) > -1;) { + ++this.curLine; + pos = this.lineStart = nextBreak; } - return out; } + if (this.options.onComment) + { this.options.onComment(true, this.input.slice(start + 2, end), start, this.pos, + startLoc, this.curPosition()); } + }; - if (base === (base | 0) && base >= 2 && base <= 36) { - // var groupSize = Math.floor(BN.wordSize * Math.LN2 / Math.log(base)); - var groupSize = groupSizes[base]; - // var groupBase = Math.pow(base, groupSize); - var groupBase = groupBases[base]; - out = ''; - var c = this.clone(); - c.negative = 0; - while (!c.isZero()) { - var r = c.modn(groupBase).toString(base); - c = c.idivn(groupBase); + pp.skipLineComment = function(startSkip) { + var start = this.pos; + var startLoc = this.options.onComment && this.curPosition(); + var ch = this.input.charCodeAt(this.pos += startSkip); + while (this.pos < this.input.length && !isNewLine(ch)) { + ch = this.input.charCodeAt(++this.pos); + } + if (this.options.onComment) + { this.options.onComment(false, this.input.slice(start + startSkip, this.pos), start, this.pos, + startLoc, this.curPosition()); } + }; - if (!c.isZero()) { - out = zeros[groupSize - r.length] + r + out; + // Called at the start of the parse and after every token. Skips + // whitespace and comments, and. + + pp.skipSpace = function() { + loop: while (this.pos < this.input.length) { + var ch = this.input.charCodeAt(this.pos); + switch (ch) { + case 32: case 160: // ' ' + ++this.pos; + break + case 13: + if (this.input.charCodeAt(this.pos + 1) === 10) { + ++this.pos; + } + case 10: case 8232: case 8233: + ++this.pos; + if (this.options.locations) { + ++this.curLine; + this.lineStart = this.pos; + } + break + case 47: // '/' + switch (this.input.charCodeAt(this.pos + 1)) { + case 42: // '*' + this.skipBlockComment(); + break + case 47: + this.skipLineComment(2); + break + default: + break loop + } + break + default: + if (ch > 8 && ch < 14 || ch >= 5760 && nonASCIIwhitespace.test(String.fromCharCode(ch))) { + ++this.pos; } else { - out = r + out; + break loop } } - if (this.isZero()) { - out = '0' + out; - } - while (out.length % padding !== 0) { - out = '0' + out; - } - if (this.negative !== 0) { - out = '-' + out; - } - return out; } + }; - assert(false, 'Base should be between 2 and 36'); + // Called at the end of every token. Sets `end`, `val`, and + // maintains `context` and `exprAllowed`, and skips the space after + // the token, so that the next one's `start` will point at the + // right position. + + pp.finishToken = function(type, val) { + this.end = this.pos; + if (this.options.locations) { this.endLoc = this.curPosition(); } + var prevType = this.type; + this.type = type; + this.value = val; + + this.updateContext(prevType); }; - BN.prototype.toNumber = function toNumber () { - var ret = this.words[0]; - if (this.length === 2) { - ret += this.words[1] * 0x4000000; - } else if (this.length === 3 && this.words[2] === 0x01) { - // NOTE: at this stage it is known that the top bit is set - ret += 0x10000000000000 + (this.words[1] * 0x4000000); - } else if (this.length > 2) { - assert(false, 'Number can only safely store up to 53 bits'); + // ### Token reading + + // This is the function that is called to fetch the next token. It + // is somewhat obscure, because it works in character codes rather + // than characters, and because operator parsing has been inlined + // into it. + // + // All in the name of speed. + // + pp.readToken_dot = function() { + var next = this.input.charCodeAt(this.pos + 1); + if (next >= 48 && next <= 57) { return this.readNumber(true) } + var next2 = this.input.charCodeAt(this.pos + 2); + if (this.options.ecmaVersion >= 6 && next === 46 && next2 === 46) { // 46 = dot '.' + this.pos += 3; + return this.finishToken(types$1.ellipsis) + } else { + ++this.pos; + return this.finishToken(types$1.dot) } - return (this.negative !== 0) ? -ret : ret; }; - BN.prototype.toJSON = function toJSON () { - return this.toString(16); + pp.readToken_slash = function() { // '/' + var next = this.input.charCodeAt(this.pos + 1); + if (this.exprAllowed) { ++this.pos; return this.readRegexp() } + if (next === 61) { return this.finishOp(types$1.assign, 2) } + return this.finishOp(types$1.slash, 1) }; - BN.prototype.toBuffer = function toBuffer (endian, length) { - assert(typeof Buffer !== 'undefined'); - return this.toArrayLike(Buffer, endian, length); - }; + pp.readToken_mult_modulo_exp = function(code) { // '%*' + var next = this.input.charCodeAt(this.pos + 1); + var size = 1; + var tokentype = code === 42 ? types$1.star : types$1.modulo; - BN.prototype.toArray = function toArray (endian, length) { - return this.toArrayLike(Array, endian, length); + // exponentiation operator ** and **= + if (this.options.ecmaVersion >= 7 && code === 42 && next === 42) { + ++size; + tokentype = types$1.starstar; + next = this.input.charCodeAt(this.pos + 2); + } + + if (next === 61) { return this.finishOp(types$1.assign, size + 1) } + return this.finishOp(tokentype, size) }; - BN.prototype.toArrayLike = function toArrayLike (ArrayType, endian, length) { - var byteLength = this.byteLength(); - var reqLength = length || Math.max(1, byteLength); - assert(byteLength <= reqLength, 'byte array longer than desired length'); - assert(reqLength > 0, 'Requested array length <= 0'); + pp.readToken_pipe_amp = function(code) { // '|&' + var next = this.input.charCodeAt(this.pos + 1); + if (next === code) { + if (this.options.ecmaVersion >= 12) { + var next2 = this.input.charCodeAt(this.pos + 2); + if (next2 === 61) { return this.finishOp(types$1.assign, 3) } + } + return this.finishOp(code === 124 ? types$1.logicalOR : types$1.logicalAND, 2) + } + if (next === 61) { return this.finishOp(types$1.assign, 2) } + return this.finishOp(code === 124 ? types$1.bitwiseOR : types$1.bitwiseAND, 1) + }; - this.strip(); - var littleEndian = endian === 'le'; - var res = new ArrayType(reqLength); + pp.readToken_caret = function() { // '^' + var next = this.input.charCodeAt(this.pos + 1); + if (next === 61) { return this.finishOp(types$1.assign, 2) } + return this.finishOp(types$1.bitwiseXOR, 1) + }; - var b, i; - var q = this.clone(); - if (!littleEndian) { - // Assume big-endian - for (i = 0; i < reqLength - byteLength; i++) { - res[i] = 0; + pp.readToken_plus_min = function(code) { // '+-' + var next = this.input.charCodeAt(this.pos + 1); + if (next === code) { + if (next === 45 && !this.inModule && this.input.charCodeAt(this.pos + 2) === 62 && + (this.lastTokEnd === 0 || lineBreak.test(this.input.slice(this.lastTokEnd, this.pos)))) { + // A `-->` line comment + this.skipLineComment(3); + this.skipSpace(); + return this.nextToken() } + return this.finishOp(types$1.incDec, 2) + } + if (next === 61) { return this.finishOp(types$1.assign, 2) } + return this.finishOp(types$1.plusMin, 1) + }; - for (i = 0; !q.isZero(); i++) { - b = q.andln(0xff); - q.iushrn(8); + pp.readToken_lt_gt = function(code) { // '<>' + var next = this.input.charCodeAt(this.pos + 1); + var size = 1; + if (next === code) { + size = code === 62 && this.input.charCodeAt(this.pos + 2) === 62 ? 3 : 2; + if (this.input.charCodeAt(this.pos + size) === 61) { return this.finishOp(types$1.assign, size + 1) } + return this.finishOp(types$1.bitShift, size) + } + if (next === 33 && code === 60 && !this.inModule && this.input.charCodeAt(this.pos + 2) === 45 && + this.input.charCodeAt(this.pos + 3) === 45) { + // `' is a single-line comment + this.index += 3; + var comment = this.skipSingleLineComment(3); + if (this.trackComment) { + comments = comments.concat(comment); + } + } + else { + break; + } + } + else if (ch === 0x3C && !this.isModule) { + if (this.source.slice(this.index + 1, this.index + 4) === '!--') { + this.index += 4; // `