Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge pull request #519 from XmiliaH/resolver-api
Resolver API
- Loading branch information
Showing
9 changed files
with
569 additions
and
398 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,147 @@ | ||
|
|
||
| const fs = require('fs'); | ||
| const nmod = require('module'); | ||
| const {EventEmitter} = require('events'); | ||
| const util = require('util'); | ||
| const {VMScript} = require('./script'); | ||
| const {VM} = require('./vm'); | ||
|
|
||
| const eventsModules = new WeakMap(); | ||
|
|
||
| function defaultBuiltinLoaderEvents(vm) { | ||
| return eventsModules.get(vm); | ||
| } | ||
|
|
||
| let cacheBufferScript; | ||
|
|
||
| function defaultBuiltinLoaderBuffer(vm) { | ||
| if (!cacheBufferScript) { | ||
| cacheBufferScript = new VMScript('return buffer=>({Buffer: buffer});', {__proto__: null, filename: 'buffer.js'}); | ||
| } | ||
| const makeBuffer = vm.run(cacheBufferScript, {__proto__: null, strict: true, wrapper: 'none'}); | ||
| return makeBuffer(Buffer); | ||
| } | ||
|
|
||
| let cacheUtilScript; | ||
|
|
||
| function defaultBuiltinLoaderUtil(vm) { | ||
| if (!cacheUtilScript) { | ||
| cacheUtilScript = new VMScript(`return function inherits(ctor, superCtor) { | ||
| ctor.super_ = superCtor; | ||
| Object.setPrototypeOf(ctor.prototype, superCtor.prototype); | ||
| }`, {__proto__: null, filename: 'util.js'}); | ||
| } | ||
| const inherits = vm.run(cacheUtilScript, {__proto__: null, strict: true, wrapper: 'none'}); | ||
| const copy = Object.assign({}, util); | ||
| copy.inherits = inherits; | ||
| return vm.readonly(copy); | ||
| } | ||
|
|
||
| const BUILTIN_MODULES = (nmod.builtinModules || Object.getOwnPropertyNames(process.binding('natives'))).filter(s=>!s.startsWith('internal/')); | ||
|
|
||
| let EventEmitterReferencingAsyncResourceClass = null; | ||
| if (EventEmitter.EventEmitterAsyncResource) { | ||
| // eslint-disable-next-line global-require | ||
| const {AsyncResource} = require('async_hooks'); | ||
| const kEventEmitter = Symbol('kEventEmitter'); | ||
| class EventEmitterReferencingAsyncResource extends AsyncResource { | ||
| constructor(ee, type, options) { | ||
| super(type, options); | ||
| this[kEventEmitter] = ee; | ||
| } | ||
| get eventEmitter() { | ||
| return this[kEventEmitter]; | ||
| } | ||
| } | ||
| EventEmitterReferencingAsyncResourceClass = EventEmitterReferencingAsyncResource; | ||
| } | ||
|
|
||
| let cacheEventsScript; | ||
|
|
||
| const SPECIAL_MODULES = { | ||
| events: { | ||
| init(vm) { | ||
| if (!cacheEventsScript) { | ||
| const eventsSource = fs.readFileSync(`${__dirname}/events.js`, 'utf8'); | ||
| cacheEventsScript = new VMScript(`(function (fromhost) { const module = {}; module.exports={};{ ${eventsSource} | ||
| } return module.exports;})`, {filename: 'events.js'}); | ||
| } | ||
| const closure = VM.prototype.run.call(vm, cacheEventsScript); | ||
| const eventsInstance = closure(vm.readonly({ | ||
| kErrorMonitor: EventEmitter.errorMonitor, | ||
| once: EventEmitter.once, | ||
| on: EventEmitter.on, | ||
| getEventListeners: EventEmitter.getEventListeners, | ||
| EventEmitterReferencingAsyncResource: EventEmitterReferencingAsyncResourceClass | ||
| })); | ||
| eventsModules.set(vm, eventsInstance); | ||
| vm._addProtoMapping(EventEmitter.prototype, eventsInstance.EventEmitter.prototype); | ||
| }, | ||
| load: defaultBuiltinLoaderEvents | ||
| }, | ||
| buffer: defaultBuiltinLoaderBuffer, | ||
| util: defaultBuiltinLoaderUtil | ||
| }; | ||
|
|
||
| function addDefaultBuiltin(builtins, key, hostRequire) { | ||
| if (builtins.has(key)) return; | ||
| const special = SPECIAL_MODULES[key]; | ||
| builtins.set(key, special ? special : vm => vm.readonly(hostRequire(key))); | ||
| } | ||
|
|
||
|
|
||
| function makeBuiltinsFromLegacyOptions(builtins, hostRequire, mocks, overrides) { | ||
| const res = new Map(); | ||
| if (mocks) { | ||
| const keys = Object.getOwnPropertyNames(mocks); | ||
| for (let i = 0; i < keys.length; i++) { | ||
| const key = keys[i]; | ||
| res.set(key, (tvm) => tvm.readonly(mocks[key])); | ||
| } | ||
| } | ||
| if (overrides) { | ||
| const keys = Object.getOwnPropertyNames(overrides); | ||
| for (let i = 0; i < keys.length; i++) { | ||
| const key = keys[i]; | ||
| res.set(key, overrides[key]); | ||
| } | ||
| } | ||
| if (Array.isArray(builtins)) { | ||
| const def = builtins.indexOf('*') >= 0; | ||
| if (def) { | ||
| for (let i = 0; i < BUILTIN_MODULES.length; i++) { | ||
| const name = BUILTIN_MODULES[i]; | ||
| if (builtins.indexOf(`-${name}`) === -1) { | ||
| addDefaultBuiltin(res, name, hostRequire); | ||
| } | ||
| } | ||
| } else { | ||
| for (let i = 0; i < BUILTIN_MODULES.length; i++) { | ||
| const name = BUILTIN_MODULES[i]; | ||
| if (builtins.indexOf(name) !== -1) { | ||
| addDefaultBuiltin(res, name, hostRequire); | ||
| } | ||
| } | ||
| } | ||
| } else if (builtins) { | ||
| for (let i = 0; i < BUILTIN_MODULES.length; i++) { | ||
| const name = BUILTIN_MODULES[i]; | ||
| if (builtins[name]) { | ||
| addDefaultBuiltin(res, name, hostRequire); | ||
| } | ||
| } | ||
| } | ||
| return res; | ||
| } | ||
|
|
||
| function makeBuiltins(builtins, hostRequire) { | ||
| const res = new Map(); | ||
| for (let i = 0; i < builtins.length; i++) { | ||
| const name = builtins[i]; | ||
| addDefaultBuiltin(res, name, hostRequire); | ||
| } | ||
| return res; | ||
| } | ||
|
|
||
| exports.makeBuiltinsFromLegacyOptions = makeBuiltinsFromLegacyOptions; | ||
| exports.makeBuiltins = makeBuiltins; |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.