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files >> //opt/alt/alt-nodejs19/root/lib/node_modules/npm/node_modules/semver/classes/comparator.js
const ANY = Symbol('SemVer ANY') // hoisted class for cyclic dependency class Comparator { static get ANY () { return ANY } constructor (comp, options) { options = parseOptions(options) if (comp instanceof Comparator) { if (comp.loose === !!options.loose) { return comp } else { comp = comp.value } } debug('comparator', comp, options) this.options = options this.loose = !!options.loose this.parse(comp) if (this.semver === ANY) { this.value = '' } else { this.value = this.operator + this.semver.version } debug('comp', this) } parse (comp) { const r = this.options.loose ? re[t.COMPARATORLOOSE] : re[t.COMPARATOR] const m = comp.match(r) if (!m) { throw new TypeError(`Invalid comparator: ${comp}`) } this.operator = m[1] !== undefined ? m[1] : '' if (this.operator === '=') { this.operator = '' } // if it literally is just '>' or '' then allow anything. if (!m[2]) { this.semver = ANY } else { this.semver = new SemVer(m[2], this.options.loose) } } toString () { return this.value } test (version) { debug('Comparator.test', version, this.options.loose) if (this.semver === ANY || version === ANY) { return true } if (typeof version === 'string') { try { version = new SemVer(version, this.options) } catch (er) { return false } } return cmp(version, this.operator, this.semver, this.options) } intersects (comp, options) { if (!(comp instanceof Comparator)) { throw new TypeError('a Comparator is required') } if (!options || typeof options !== 'object') { options = { loose: !!options, includePrerelease: false, } } if (this.operator === '') { if (this.value === '') { return true } return new Range(comp.value, options).test(this.value) } else if (comp.operator === '') { if (comp.value === '') { return true } return new Range(this.value, options).test(comp.semver) } const sameDirectionIncreasing = (this.operator === '>=' || this.operator === '>') && (comp.operator === '>=' || comp.operator === '>') const sameDirectionDecreasing = (this.operator === '<=' || this.operator === '<') && (comp.operator === '<=' || comp.operator === '<') const sameSemVer = this.semver.version === comp.semver.version const differentDirectionsInclusive = (this.operator === '>=' || this.operator === '<=') && (comp.operator === '>=' || comp.operator === '<=') const oppositeDirectionsLessThan = cmp(this.semver, '<', comp.semver, options) && (this.operator === '>=' || this.operator === '>') && (comp.operator === '<=' || comp.operator === '<') const oppositeDirectionsGreaterThan = cmp(this.semver, '>', comp.semver, options) && (this.operator === '<=' || this.operator === '<') && (comp.operator === '>=' || comp.operator === '>') return ( sameDirectionIncreasing || sameDirectionDecreasing || (sameSemVer && differentDirectionsInclusive) || oppositeDirectionsLessThan || oppositeDirectionsGreaterThan ) } } module.exports = Comparator const parseOptions = require('../internal/parse-options') const { re, t } = require('../internal/re') const cmp = require('../functions/cmp') const debug = require('../internal/debug') const SemVer = require('./semver') const Range = require('./range')
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