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Diffstat (limited to 'together/node_modules/semver/classes/comparator.js')
-rw-r--r-- | together/node_modules/semver/classes/comparator.js | 136 |
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 new file mode 100644 index 0000000..62cd204 --- /dev/null +++ b/together/node_modules/semver/classes/comparator.js @@ -0,0 +1,136 @@ +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') |