mirror of
https://github.com/denoland/deno
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79adc7b000
This commit adds alternate dispatch method to core JS API. "Deno.core.dispatchByName()" works like "Deno.core.dispatch()", but takes op name instead of op id as a first argument.
44 lines
1.5 KiB
TypeScript
44 lines
1.5 KiB
TypeScript
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
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import { core } from "./core.ts";
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import * as dispatchMinimal from "./ops/dispatch_minimal.ts";
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import * as dispatchJson from "./ops/dispatch_json.ts";
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import * as util from "./util.ts";
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import { setBuildInfo } from "./build.ts";
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import { setVersions } from "./version.ts";
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import { setPrepareStackTrace } from "./error_stack.ts";
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import { Start, opStart } from "./ops/runtime.ts";
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import { handleTimerMacrotask } from "./web/timers.ts";
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function getAsyncHandler(opName: string): (msg: Uint8Array) => void {
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switch (opName) {
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case "op_write":
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case "op_read":
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return dispatchMinimal.asyncMsgFromRust;
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default:
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return dispatchJson.asyncMsgFromRust;
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}
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}
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// TODO(bartlomieju): temporary solution, must be fixed when moving
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// dispatches to separate crates
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export function initOps(): void {
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const opsMap = core.ops();
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for (const [name, opId] of Object.entries(opsMap)) {
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core.setAsyncHandler(opId, getAsyncHandler(name));
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}
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core.setMacrotaskCallback(handleTimerMacrotask);
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}
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export function start(source?: string): Start {
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initOps();
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// First we send an empty `Start` message to let the privileged side know we
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// are ready. The response should be a `StartRes` message containing the CLI
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// args and other info.
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const s = opStart();
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setVersions(s.denoVersion, s.v8Version, s.tsVersion);
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setBuildInfo(s.target);
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util.setLogDebug(s.debugFlag, source);
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setPrepareStackTrace(Error);
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return s;
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}
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