12345678910111213141516171819202122232425262728293031323334353637383940414243444546
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.// This module is browser compatible.import { ANY, INVALID } from "./constants.ts";import type { SemVer } from "./types.ts";import { isValidNumber, isValidString } from "./_shared.ts";
/** * Checks to see if value is a valid SemVer object. It does a check * into each field including prerelease and build. * * Some invalid SemVer sentinels can still return true such as ANY and INVALID. * An object which has the same value as a sentinel but isn't reference equal * will still fail. * * Objects which are valid SemVer objects but have _extra_ fields are still * considered SemVer objects and this will return true. * * A type assertion is added to the value. * @param value The value to check to see if its a valid SemVer object * @returns True if value is a valid SemVer otherwise false */export function isSemVer(value: unknown): value is SemVer {  if (value === null || value === undefined) return false;  if (Array.isArray(value)) return false;  if (typeof value !== "object") return false;  if (value === INVALID) return true;  if (value === ANY) return true;
  const {    major,    minor,    patch,    build = [],    prerelease = [],  } = value as Record<string, unknown>;  return (    isValidNumber(major) &&    isValidNumber(minor) &&    isValidNumber(patch) &&    Array.isArray(prerelease) &&    prerelease.every((v) => isValidString(v) || isValidNumber(v)) &&    Array.isArray(build) &&    build.every(isValidString)  );}