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25 lines
670 B
TypeScript
25 lines
670 B
TypeScript
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
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import { sendSync } from "./dispatch_json.ts";
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import { assert } from "../util.ts";
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export function getRandomValues<
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T extends
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| Int8Array
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| Uint8Array
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| Uint8ClampedArray
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| Int16Array
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| Uint16Array
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| Int32Array
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| Uint32Array,
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>(typedArray: T): T {
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assert(typedArray !== null, "Input must not be null");
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assert(typedArray.length <= 65536, "Input must not be longer than 65536");
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const ui8 = new Uint8Array(
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typedArray.buffer,
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typedArray.byteOffset,
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typedArray.byteLength,
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);
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sendSync("op_get_random_values", {}, ui8);
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return typedArray;
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}
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