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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.import type { Comparator, Range, SemVer } from "./types.ts";import { compare } from "./compare.ts";import { isWildcardComparator } from "./_shared.ts";
function testComparator(version: SemVer, comparator: Comparator): boolean {  if (isWildcardComparator(comparator)) {    return true;  }  const cmp = compare(version, comparator.semver ?? comparator);  switch (comparator.operator) {    case "=":    case undefined: {      return cmp === 0;    }    case "!=": {      return cmp !== 0;    }    case ">": {      return cmp > 0;    }    case "<": {      return cmp < 0;    }    case ">=": {      return cmp >= 0;    }    case "<=": {      return cmp <= 0;    }  }}
function testComparatorSet(  version: SemVer,  set: Comparator[],): boolean {  for (const comparator of set) {    if (!testComparator(version, comparator)) {      return false;    }  }  if (version.prerelease && version.prerelease.length > 0) {    // Find the comparator that is allowed to have prereleases    // For example, ^1.2.3-pr.1 desugars to >=1.2.3-pr.1 <2.0.0    // That should allow `1.2.3-pr.2` to pass.    // However, `1.2.4-alpha.notready` should NOT be allowed,    // even though it's within the range set by the comparators.    for (const comparator of set) {      if (isWildcardComparator(comparator)) {        continue;      }      const { prerelease } = comparator.semver ?? comparator;      if (prerelease && prerelease.length > 0) {        const major = comparator.semver?.major ?? comparator.major;        const minor = comparator.semver?.minor ?? comparator.minor;        const patch = comparator.semver?.patch ?? comparator.patch;        if (          version.major === major && version.minor === minor &&          version.patch === patch        ) {          return true;        }      }    }    return false;  }  return true;}
/** * Test to see if the version satisfies the range. * @param version The version to test * @param range The range to check * @returns true if the version is in the range */export function testRange(  version: SemVer,  range: Range,): boolean {  return range.some((set) => testComparatorSet(version, set));}