bring back json ops (#2815)

1 files changed, 8 insertions, 10 deletions

diff --git a/js/get_random_values.ts b/js/get_random_values.ts
index d5c0828c5..154e77f75 100644
--- a/js/get_random_values.ts
+++ b/js/get_random_values.ts
@@ -1,15 +1,8 @@
 // Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
-import { sendSync, msg, flatbuffers } from "./dispatch_flatbuffers";
+import * as dispatch from "./dispatch";
+import { sendSync } from "./dispatch_json";
 import { assert } from "./util";
 
-function req(
-  typedArray: ArrayBufferView
-): [flatbuffers.Builder, msg.Any, flatbuffers.Offset, ArrayBufferView] {
-  const builder = flatbuffers.createBuilder();
-  const inner = msg.GetRandomValues.createGetRandomValues(builder);
-  return [builder, msg.Any.GetRandomValues, inner, typedArray];
-}
-
 /** Synchronously collects cryptographically secure random values. The
  * underlying CSPRNG in use is Rust's `rand::rngs::ThreadRng`.
  *
@@ -28,6 +21,11 @@ export function getRandomValues<
 >(typedArray: T): T {
   assert(typedArray !== null, "Input must not be null");
   assert(typedArray.length <= 65536, "Input must not be longer than 65536");
-  sendSync(...req(typedArray as ArrayBufferView));
+  const ui8 = new Uint8Array(
+    typedArray.buffer,
+    typedArray.byteOffset,
+    typedArray.byteLength
+  );
+  sendSync(dispatch.OP_GET_RANDOM_VALUES, {}, ui8);
   return typedArray;
 }