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core: add Deno.core.dispatchByName (#6395)

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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.
This commit is contained in:
Bartek Iwańczuk 2020-06-21 16:34:43 +02:00 • committed by GitHub
parent 86448fd9aa
commit 79adc7b000
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6 changed files with 27 additions and 41 deletions
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6
cli/js/runtime.ts
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@ -9,8 +9,6 @@ import { setPrepareStackTrace } from "./error_stack.ts";
import { Start, opStart } from "./ops/runtime.ts";
import { handleTimerMacrotask } from "./web/timers.ts";
export let OPS_CACHE: { [name: string]: number };
function getAsyncHandler(opName: string): (msg: Uint8Array) => void {
switch (opName) {
case "op_write":
@ -24,8 +22,8 @@ function getAsyncHandler(opName: string): (msg: Uint8Array) => void {
// TODO(bartlomieju): temporary solution, must be fixed when moving
// dispatches to separate crates
export function initOps(): void {
OPS_CACHE = core.ops();
for (const [name, opId] of Object.entries(OPS_CACHE)) {
const opsMap = core.ops();
for (const [name, opId] of Object.entries(opsMap)) {
core.setAsyncHandler(opId, getAsyncHandler(name));
}
core.setMacrotaskCallback(handleTimerMacrotask);