/
ArrayExpression.ts
128 lines (117 loc) · 3.92 KB
/
ArrayExpression.ts
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import type { CallOptions } from '../CallOptions';
import type { DeoptimizableEntity } from '../DeoptimizableEntity';
import type { HasEffectsContext } from '../ExecutionContext';
import { InclusionContext } from '../ExecutionContext';
import type { NodeEvent } from '../NodeEvents';
import {
type ObjectPath,
type PathTracker,
UNKNOWN_PATH,
UnknownInteger
} from '../utils/PathTracker';
import { UNDEFINED_EXPRESSION, UNKNOWN_LITERAL_NUMBER } from '../values';
import type * as NodeType from './NodeType';
import SpreadElement from './SpreadElement';
import { ARRAY_PROTOTYPE } from './shared/ArrayPrototype';
import type { ExpressionEntity, LiteralValueOrUnknown } from './shared/Expression';
import { type ExpressionNode, NodeBase } from './shared/Node';
import { ObjectEntity, type ObjectProperty } from './shared/ObjectEntity';
export default class ArrayExpression extends NodeBase {
declare elements: readonly (ExpressionNode | SpreadElement | null)[];
declare type: NodeType.tArrayExpression;
protected deoptimized = false;
private objectEntity: ObjectEntity | null = null;
deoptimizePath(path: ObjectPath): void {
this.getObjectEntity().deoptimizePath(path);
}
deoptimizeThisOnEventAtPath(
event: NodeEvent,
path: ObjectPath,
thisParameter: ExpressionEntity,
recursionTracker: PathTracker
): void {
this.getObjectEntity().deoptimizeThisOnEventAtPath(
event,
path,
thisParameter,
recursionTracker
);
}
getLiteralValueAtPath(
path: ObjectPath,
recursionTracker: PathTracker,
origin: DeoptimizableEntity
): LiteralValueOrUnknown {
return this.getObjectEntity().getLiteralValueAtPath(path, recursionTracker, origin);
}
getReturnExpressionWhenCalledAtPath(
path: ObjectPath,
callOptions: CallOptions,
recursionTracker: PathTracker,
origin: DeoptimizableEntity
): ExpressionEntity {
return this.getObjectEntity().getReturnExpressionWhenCalledAtPath(
path,
callOptions,
recursionTracker,
origin
);
}
hasEffectsWhenAccessedAtPath(path: ObjectPath, context: HasEffectsContext): boolean | undefined {
return this.getObjectEntity().hasEffectsWhenAccessedAtPath(path, context);
}
hasEffectsWhenAssignedAtPath(path: ObjectPath, context: HasEffectsContext): boolean {
return this.getObjectEntity().hasEffectsWhenAssignedAtPath(path, context);
}
hasEffectsWhenCalledAtPath(
path: ObjectPath,
callOptions: CallOptions,
context: HasEffectsContext
): boolean {
return this.getObjectEntity().hasEffectsWhenCalledAtPath(path, callOptions, context);
}
includeArgumentsWhenCalledAtPath(
path: ObjectPath,
context: InclusionContext,
args: readonly (ExpressionEntity | SpreadElement)[]
) {
this.getObjectEntity().includeArgumentsWhenCalledAtPath(path, context, args);
}
protected applyDeoptimizations(): void {
this.deoptimized = true;
let hasSpread = false;
for (let index = 0; index < this.elements.length; index++) {
const element = this.elements[index];
if (hasSpread || element instanceof SpreadElement) {
if (element) {
hasSpread = true;
element.deoptimizePath(UNKNOWN_PATH);
}
}
}
this.context.requestTreeshakingPass();
}
private getObjectEntity(): ObjectEntity {
if (this.objectEntity !== null) {
return this.objectEntity;
}
const properties: ObjectProperty[] = [
{ key: 'length', kind: 'init', property: UNKNOWN_LITERAL_NUMBER }
];
let hasSpread = false;
for (let index = 0; index < this.elements.length; index++) {
const element = this.elements[index];
if (hasSpread || element instanceof SpreadElement) {
if (element) {
hasSpread = true;
properties.unshift({ key: UnknownInteger, kind: 'init', property: element });
}
} else if (!element) {
properties.push({ key: String(index), kind: 'init', property: UNDEFINED_EXPRESSION });
} else {
properties.push({ key: String(index), kind: 'init', property: element });
}
}
return (this.objectEntity = new ObjectEntity(properties, ARRAY_PROTOTYPE));
}
}