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e6ec6a205e
* initial commit * update * initial commit * update * update checks * remove type check --------- Co-authored-by: Asher Gomez <ashersaupingomez@gmail.com>
45 lines
1.5 KiB
TypeScript
45 lines
1.5 KiB
TypeScript
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
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import { ANY, INVALID } from "./constants.ts";
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import type { SemVer } from "./types.ts";
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import { isValidNumber, isValidString } from "./_shared.ts";
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/**
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* Checks to see if value is a valid SemVer object. It does a check
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* into each field including prerelease and build.
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*
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* Some invalid SemVer sentinels can still return true such as ANY and INVALID.
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* An object which has the same value as a sentinel but isn't reference equal
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* will still fail.
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*
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* Objects which are valid SemVer objects but have _extra_ fields are still
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* considered SemVer objects and this will return true.
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*
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* A type assertion is added to the value.
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* @param value The value to check to see if its a valid SemVer object
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* @returns True if value is a valid SemVer otherwise false
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*/
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export function isSemVer(value: unknown): value is SemVer {
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if (value === null || value === undefined) return false;
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if (Array.isArray(value)) return false;
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if (typeof value !== "object") return false;
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if (value === INVALID) return true;
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if (value === ANY) return true;
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const {
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major,
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minor,
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patch,
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build = [],
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prerelease = [],
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} = value as Record<string, unknown>;
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return (
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isValidNumber(major) &&
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isValidNumber(minor) &&
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isValidNumber(patch) &&
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Array.isArray(prerelease) &&
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prerelease.every((v) => isValidString(v) || isValidNumber(v)) &&
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Array.isArray(build) &&
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build.every(isValidString)
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);
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}
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