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Provide option to delete Deno namespace in worker (#2717)

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Kevin (Kun) "Kassimo" Qian 2019-08-05 04:23:41 -07:00 • committed by Ryan Dahl
parent aaa7a3eac4
commit ddee2dff14
18 changed files with 128 additions and 17 deletions
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31
js/workers.ts
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@ -20,10 +20,17 @@ export function decodeMessage(dataIntArray: Uint8Array): any {
return JSON.parse(dataJson);
}
function createWorker(specifier: string): number {
function createWorker(
specifier: string,
includeDenoNamespace: boolean
): number {
const builder = flatbuffers.createBuilder();
const specifier_ = builder.createString(specifier);
const inner = msg.CreateWorker.createCreateWorker(builder, specifier_);
const inner = msg.CreateWorker.createCreateWorker(
builder,
specifier_,
includeDenoNamespace
);
const baseRes = sendSync(builder, msg.Any.CreateWorker, inner);
assert(baseRes != null);
assert(
@ -149,6 +156,18 @@ export interface Worker {
closed: Promise<void>;
}
// TODO(kevinkassimo): Maybe implement reasonable web worker options?
// eslint-disable-next-line @typescript-eslint/no-empty-interface
export interface WorkerOptions {}
/** Extended Deno Worker initialization options.
* `noDenoNamespace` hides global `window.Deno` namespace for
* spawned worker and nested workers spawned by it (default: false).
*/
export interface DenoWorkerOptions extends WorkerOptions {
noDenoNamespace?: boolean;
}
export class WorkerImpl implements Worker {
private readonly rid: number;
private isClosing: boolean = false;
@ -157,8 +176,12 @@ export class WorkerImpl implements Worker {
public onmessage?: (data: any) => void;
public onmessageerror?: () => void;
constructor(specifier: string) {
this.rid = createWorker(specifier);
constructor(specifier: string, options?: DenoWorkerOptions) {
let includeDenoNamespace = true;
if (options && options.noDenoNamespace) {
includeDenoNamespace = false;
}
this.rid = createWorker(specifier, includeDenoNamespace);
this.run();
this.isClosedPromise = hostGetWorkerClosed(this.rid);
this.isClosedPromise.then(