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-rw-r--r--together/node_modules/semver/classes/comparator.js136
1 files changed, 136 insertions, 0 deletions
diff --git a/together/node_modules/semver/classes/comparator.js b/together/node_modules/semver/classes/comparator.js
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+++ b/together/node_modules/semver/classes/comparator.js
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+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')