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

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.

1 files changed, 2 insertions, 4 deletions

diff --git a/cli/js/runtime.ts b/cli/js/runtime.ts
index e16cee228..39d158f71 100644
--- a/cli/js/runtime.ts
+++ b/cli/js/runtime.ts
@@ -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);