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d47147fb6a
This commit moves "deno_std/node" in "ext/node" crate. The code is transpiled and snapshotted during the build process. During the first pass a minimal amount of work was done to create the snapshot, a lot of code in "ext/node" depends on presence of "Deno" global. This code will be gradually fixed in the follow up PRs to migrate it to import relevant APIs from "internal:" modules. Currently the code from snapshot is not used in any way, and all Node/npm compatibility still uses code from "https://deno.land/std/node" (or from the location specified by "DENO_NODE_COMPAT_URL"). This will also be handled in a follow up PRs. --------- Co-authored-by: crowlkats <crowlkats@toaxl.com> Co-authored-by: Divy Srivastava <dj.srivastava23@gmail.com> Co-authored-by: Yoshiya Hinosawa <stibium121@gmail.com>
60 lines
1.5 KiB
TypeScript
60 lines
1.5 KiB
TypeScript
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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export default function randomInt(max: number): number;
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export default function randomInt(min: number, max: number): number;
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export default function randomInt(
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max: number,
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cb: (err: Error | null, n?: number) => void,
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): void;
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export default function randomInt(
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min: number,
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max: number,
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cb: (err: Error | null, n?: number) => void,
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): void;
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export default function randomInt(
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max: number,
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min?: ((err: Error | null, n?: number) => void) | number,
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cb?: (err: Error | null, n?: number) => void,
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): number | void {
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if (typeof max === "number" && typeof min === "number") {
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[max, min] = [min, max];
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}
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if (min === undefined) min = 0;
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else if (typeof min === "function") {
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cb = min;
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min = 0;
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}
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if (
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!Number.isSafeInteger(min) ||
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typeof max === "number" && !Number.isSafeInteger(max)
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) {
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throw new Error("max or min is not a Safe Number");
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}
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if (max - min > Math.pow(2, 48)) {
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throw new RangeError("max - min should be less than 2^48!");
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}
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if (min >= max) {
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throw new Error("Min is bigger than Max!");
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}
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const randomBuffer = new Uint32Array(1);
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globalThis.crypto.getRandomValues(randomBuffer);
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const randomNumber = randomBuffer[0] / (0xffffffff + 1);
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min = Math.ceil(min);
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max = Math.floor(max);
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const result = Math.floor(randomNumber * (max - min)) + min;
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if (cb) {
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cb(null, result);
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return;
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}
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return result;
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}
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