mirror of https://github.com/webpack/webpack.git
478 lines
15 KiB
JavaScript
478 lines
15 KiB
JavaScript
/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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"use strict";
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/** @typedef {(string|number|undefined|[])[]} SemVerRange */
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/**
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* @param {string} str version string
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* @returns {(string|number|undefined|[])[]} parsed version
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*/
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const parseVersion = str => {
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var splitAndConvert = function (str) {
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return str.split(".").map(function (item) {
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// eslint-disable-next-line eqeqeq
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return +item == item ? +item : item;
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});
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};
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var match = /^([^-+]+)?(?:-([^+]+))?(?:\+(.+))?$/.exec(str);
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/** @type {(string|number|undefined|[])[]} */
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var ver = match[1] ? splitAndConvert(match[1]) : [];
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if (match[2]) {
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ver.length++;
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ver.push.apply(ver, splitAndConvert(match[2]));
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}
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if (match[3]) {
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ver.push([]);
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ver.push.apply(ver, splitAndConvert(match[3]));
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}
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return ver;
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};
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exports.parseVersion = parseVersion;
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/* eslint-disable eqeqeq */
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/**
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* @param {string} a version
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* @param {string} b version
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* @returns {boolean} true, iff a < b
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*/
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const versionLt = (a, b) => {
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// @ts-expect-error
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a = parseVersion(a);
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// @ts-expect-error
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b = parseVersion(b);
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var i = 0;
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for (;;) {
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// a b EOA object undefined number string
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// EOA a == b a < b b < a a < b a < b
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// object b < a (0) b < a a < b a < b
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// undefined a < b a < b (0) a < b a < b
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// number b < a b < a b < a (1) a < b
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// string b < a b < a b < a b < a (1)
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// EOA end of array
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// (0) continue on
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// (1) compare them via "<"
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// Handles first row in table
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if (i >= a.length) return i < b.length && (typeof b[i])[0] != "u";
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var aValue = a[i];
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var aType = (typeof aValue)[0];
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// Handles first column in table
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if (i >= b.length) return aType == "u";
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var bValue = b[i];
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var bType = (typeof bValue)[0];
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if (aType == bType) {
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if (aType != "o" && aType != "u" && aValue != bValue) {
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return aValue < bValue;
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}
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i++;
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} else {
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// Handles remaining cases
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if (aType == "o" && bType == "n") return true;
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return bType == "s" || aType == "u";
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}
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}
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};
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/* eslint-enable eqeqeq */
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exports.versionLt = versionLt;
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/**
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* @param {string} str range string
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* @returns {SemVerRange} parsed range
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*/
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exports.parseRange = str => {
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const splitAndConvert = str => {
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return str.split(".").map(item => (`${+item}` === item ? +item : item));
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};
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// see https://docs.npmjs.com/misc/semver#range-grammar for grammar
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const parsePartial = str => {
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const match = /^([^-+]+)?(?:-([^+]+))?(?:\+(.+))?$/.exec(str);
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/** @type {(string|number|undefined|[])[]} */
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const ver = match[1] ? [0, ...splitAndConvert(match[1])] : [0];
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if (match[2]) {
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ver.length++;
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ver.push.apply(ver, splitAndConvert(match[2]));
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}
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// remove trailing any matchers
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let last = ver[ver.length - 1];
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while (
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ver.length &&
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(last === undefined || /^[*xX]$/.test(/** @type {string} */ (last)))
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) {
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ver.pop();
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last = ver[ver.length - 1];
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}
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return ver;
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};
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const toFixed = range => {
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if (range.length === 1) {
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// Special case for "*" is "x.x.x" instead of "="
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return [0];
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} else if (range.length === 2) {
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// Special case for "1" is "1.x.x" instead of "=1"
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return [1, ...range.slice(1)];
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} else if (range.length === 3) {
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// Special case for "1.2" is "1.2.x" instead of "=1.2"
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return [2, ...range.slice(1)];
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} else {
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return [range.length, ...range.slice(1)];
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}
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};
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const negate = range => {
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return [-range[0] - 1, ...range.slice(1)];
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};
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const parseSimple = str => {
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// simple ::= primitive | partial | tilde | caret
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// primitive ::= ( '<' | '>' | '>=' | '<=' | '=' ) partial
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// tilde ::= '~' partial
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// caret ::= '^' partial
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const match = /^(\^|~|<=|<|>=|>|=|v|!)/.exec(str);
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const start = match ? match[0] : "";
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const remainder = parsePartial(str.slice(start.length));
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switch (start) {
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case "^":
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if (remainder.length > 1 && remainder[1] === 0) {
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if (remainder.length > 2 && remainder[2] === 0) {
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return [3, ...remainder.slice(1)];
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}
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return [2, ...remainder.slice(1)];
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}
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return [1, ...remainder.slice(1)];
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case "~":
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return [2, ...remainder.slice(1)];
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case ">=":
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return remainder;
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case "=":
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case "v":
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case "":
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return toFixed(remainder);
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case "<":
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return negate(remainder);
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case ">": {
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// and( >=, not( = ) ) => >=, =, not, and
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const fixed = toFixed(remainder);
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// eslint-disable-next-line no-sparse-arrays
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return [, fixed, 0, remainder, 2];
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}
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case "<=":
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// or( <, = ) => <, =, or
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// eslint-disable-next-line no-sparse-arrays
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return [, toFixed(remainder), negate(remainder), 1];
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case "!": {
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// not =
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const fixed = toFixed(remainder);
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// eslint-disable-next-line no-sparse-arrays
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return [, fixed, 0];
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}
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default:
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throw new Error("Unexpected start value");
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}
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};
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const combine = (items, fn) => {
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if (items.length === 1) return items[0];
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const arr = [];
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for (const item of items.slice().reverse()) {
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if (0 in item) {
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arr.push(item);
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} else {
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arr.push(...item.slice(1));
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}
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}
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// eslint-disable-next-line no-sparse-arrays
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return [, ...arr, ...items.slice(1).map(() => fn)];
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};
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const parseRange = str => {
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// range ::= hyphen | simple ( ' ' simple ) * | ''
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// hyphen ::= partial ' - ' partial
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const items = str.split(" - ");
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if (items.length === 1) {
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const items = str.trim().split(/\s+/g).map(parseSimple);
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return combine(items, 2);
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}
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const a = parsePartial(items[0]);
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const b = parsePartial(items[1]);
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// >=a <=b => and( >=a, or( <b, =b ) ) => >=a, <b, =b, or, and
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// eslint-disable-next-line no-sparse-arrays
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return [, toFixed(b), negate(b), 1, a, 2];
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};
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const parseLogicalOr = str => {
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// range-set ::= range ( logical-or range ) *
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// logical-or ::= ( ' ' ) * '||' ( ' ' ) *
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const items = str.split(/\s*\|\|\s*/).map(parseRange);
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return combine(items, 1);
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};
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return parseLogicalOr(str);
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};
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/* eslint-disable eqeqeq */
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const rangeToString = range => {
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if (range.length === 1) {
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return "*";
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} else if (0 in range) {
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var str = "";
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var fixCount = range[0];
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str +=
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fixCount == 0
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? ">="
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: fixCount == -1
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? "<"
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: fixCount == 1
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? "^"
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: fixCount == 2
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? "~"
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: fixCount > 0
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? "="
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: "!=";
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var needDot = 1;
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// eslint-disable-next-line no-redeclare
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for (var i = 1; i < range.length; i++) {
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var item = range[i];
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var t = (typeof item)[0];
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needDot--;
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str +=
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t == "u"
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? // undefined: prerelease marker, add an "-"
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"-"
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: // number or string: add the item, set flag to add an "." between two of them
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(needDot > 0 ? "." : "") + ((needDot = 2), item);
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}
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return str;
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} else {
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var stack = [];
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// eslint-disable-next-line no-redeclare
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for (var i = 1; i < range.length; i++) {
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// eslint-disable-next-line no-redeclare
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var item = range[i];
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stack.push(
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item === 0
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? "not(" + pop() + ")"
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: item === 1
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? "(" + pop() + " || " + pop() + ")"
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: item === 2
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? stack.pop() + " " + stack.pop()
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: rangeToString(item)
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);
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}
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return pop();
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}
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function pop() {
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return stack.pop().replace(/^\((.+)\)$/, "$1");
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}
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};
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/* eslint-enable eqeqeq */
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exports.rangeToString = rangeToString;
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/* eslint-disable eqeqeq */
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/**
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* @param {SemVerRange} range version range
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* @param {string} version the version
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* @returns {boolean} if version satisfy the range
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*/
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const satisfy = (range, version) => {
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if (0 in range) {
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// @ts-expect-error
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version = parseVersion(version);
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var fixCount = range[0];
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// when negated is set it swill set for < instead of >=
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var negated = fixCount < 0;
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if (negated) fixCount = -fixCount - 1;
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for (var i = 0, j = 1, isEqual = true; ; j++, i++) {
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// cspell:word nequal nequ
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// when isEqual = true:
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// range version: EOA/object undefined number string
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// EOA equal block big-ver big-ver
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// undefined bigger next big-ver big-ver
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// number smaller block cmp big-cmp
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// fixed number smaller block cmp-fix differ
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// string smaller block differ cmp
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// fixed string smaller block small-cmp cmp-fix
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// when isEqual = false:
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// range version: EOA/object undefined number string
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// EOA nequal block next-ver next-ver
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// undefined nequal block next-ver next-ver
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// number nequal block next next
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// fixed number nequal block next next (this never happens)
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// string nequal block next next
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// fixed string nequal block next next (this never happens)
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// EOA end of array
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// equal (version is equal range):
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// when !negated: return true,
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// when negated: return false
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// bigger (version is bigger as range):
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// when fixed: return false,
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// when !negated: return true,
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// when negated: return false,
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// smaller (version is smaller as range):
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// when !negated: return false,
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// when negated: return true
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// nequal (version is not equal range (> resp <)): return true
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// block (version is in different prerelease area): return false
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// differ (version is different from fixed range (string vs. number)): return false
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// next: continues to the next items
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// next-ver: when fixed: return false, continues to the next item only for the version, sets isEqual=false
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// big-ver: when fixed || negated: return false, continues to the next item only for the version, sets isEqual=false
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// next-nequ: continues to the next items, sets isEqual=false
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// cmp (negated === false): version < range => return false, version > range => next-nequ, else => next
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// cmp (negated === true): version > range => return false, version < range => next-nequ, else => next
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// cmp-fix: version == range => next, else => return false
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// big-cmp: when negated => return false, else => next-nequ
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// small-cmp: when negated => next-nequ, else => return false
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var rangeType = j < range.length ? (typeof range[j])[0] : "";
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var versionValue;
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var versionType;
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// Handles first column in both tables (end of version or object)
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if (
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i >= version.length ||
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((versionValue = version[i]),
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(versionType = (typeof versionValue)[0]) == "o")
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) {
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// Handles nequal
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if (!isEqual) return true;
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// Handles bigger
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if (rangeType == "u") return j > fixCount && !negated;
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// Handles equal and smaller: (range === EOA) XOR negated
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return (rangeType == "") != negated; // equal + smaller
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}
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// Handles second column in both tables (version = undefined)
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if (versionType == "u") {
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if (!isEqual || rangeType != "u") {
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return false;
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}
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}
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// switch between first and second table
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else if (isEqual) {
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// Handle diagonal
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if (rangeType == versionType) {
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if (j <= fixCount) {
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// Handles "cmp-fix" cases
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if (versionValue != range[j]) {
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return false;
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}
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} else {
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// Handles "cmp" cases
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if (negated ? versionValue > range[j] : versionValue < range[j]) {
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return false;
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}
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if (versionValue != range[j]) isEqual = false;
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}
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}
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// Handle big-ver
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else if (rangeType != "s" && rangeType != "n") {
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if (negated || j <= fixCount) return false;
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isEqual = false;
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j--;
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}
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// Handle differ, big-cmp and small-cmp
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else if (j <= fixCount || versionType < rangeType != negated) {
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return false;
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} else {
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isEqual = false;
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}
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} else {
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// Handles all "next-ver" cases in the second table
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if (rangeType != "s" && rangeType != "n") {
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isEqual = false;
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j--;
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}
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// next is applied by default
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}
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}
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}
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/** @type {(boolean | number)[]} */
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var stack = [];
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var p = stack.pop.bind(stack);
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// eslint-disable-next-line no-redeclare
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for (var i = 1; i < range.length; i++) {
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var item = /** @type {SemVerRange | 0 | 1 | 2} */ (range[i]);
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stack.push(
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item == 1
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? p() | p()
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: item == 2
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? p() & p()
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: item
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? satisfy(item, version)
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: !p()
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);
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}
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return !!p();
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};
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/* eslint-enable eqeqeq */
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exports.satisfy = satisfy;
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exports.stringifyHoley = json => {
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switch (typeof json) {
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case "undefined":
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return "";
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case "object":
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if (Array.isArray(json)) {
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let str = "[";
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for (let i = 0; i < json.length; i++) {
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if (i !== 0) str += ",";
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str += this.stringifyHoley(json[i]);
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}
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str += "]";
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return str;
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} else {
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return JSON.stringify(json);
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}
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default:
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return JSON.stringify(json);
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}
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};
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//#region runtime code: parseVersion
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exports.parseVersionRuntimeCode = runtimeTemplate =>
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`var parseVersion = ${runtimeTemplate.basicFunction("str", [
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"// see webpack/lib/util/semver.js for original code",
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`var p=${
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runtimeTemplate.supportsArrowFunction() ? "p=>" : "function(p)"
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}{return p.split(".").map((${
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runtimeTemplate.supportsArrowFunction() ? "p=>" : "function(p)"
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}{return+p==p?+p:p}))},n=/^([^-+]+)?(?:-([^+]+))?(?:\\+(.+))?$/.exec(str),r=n[1]?p(n[1]):[];return n[2]&&(r.length++,r.push.apply(r,p(n[2]))),n[3]&&(r.push([]),r.push.apply(r,p(n[3]))),r;`
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])}`;
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//#endregion
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//#region runtime code: versionLt
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exports.versionLtRuntimeCode = runtimeTemplate =>
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`var versionLt = ${runtimeTemplate.basicFunction("a, b", [
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"// see webpack/lib/util/semver.js for original code",
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'a=parseVersion(a),b=parseVersion(b);for(var r=0;;){if(r>=a.length)return r<b.length&&"u"!=(typeof b[r])[0];var e=a[r],n=(typeof e)[0];if(r>=b.length)return"u"==n;var t=b[r],f=(typeof t)[0];if(n!=f)return"o"==n&&"n"==f||("s"==f||"u"==n);if("o"!=n&&"u"!=n&&e!=t)return e<t;r++}'
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])}`;
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//#endregion
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//#region runtime code: rangeToString
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exports.rangeToStringRuntimeCode = runtimeTemplate =>
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`var rangeToString = ${runtimeTemplate.basicFunction("range", [
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"// see webpack/lib/util/semver.js for original code",
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'if(1===range.length)return"*";if(0 in range){var r="",n=range[0];r+=0==n?">=":-1==n?"<":1==n?"^":2==n?"~":n>0?"=":"!=";for(var e=1,a=1;a<range.length;a++){e--,r+="u"==(typeof(t=range[a]))[0]?"-":(e>0?".":"")+(e=2,t)}return r}var g=[];for(a=1;a<range.length;a++){var t=range[a];g.push(0===t?"not("+o()+")":1===t?"("+o()+" || "+o()+")":2===t?g.pop()+" "+g.pop():rangeToString(t))}return o();function o(){return g.pop().replace(/^\\((.+)\\)$/,"$1")}'
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])}`;
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//#endregion
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//#region runtime code: satisfy
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exports.satisfyRuntimeCode = runtimeTemplate =>
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`var satisfy = ${runtimeTemplate.basicFunction("range, version", [
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"// see webpack/lib/util/semver.js for original code",
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'if(0 in range){version=parseVersion(version);var e=range[0],r=e<0;r&&(e=-e-1);for(var n=0,i=1,a=!0;;i++,n++){var f,s,g=i<range.length?(typeof range[i])[0]:"";if(n>=version.length||"o"==(s=(typeof(f=version[n]))[0]))return!a||("u"==g?i>e&&!r:""==g!=r);if("u"==s){if(!a||"u"!=g)return!1}else if(a)if(g==s)if(i<=e){if(f!=range[i])return!1}else{if(r?f>range[i]:f<range[i])return!1;f!=range[i]&&(a=!1)}else if("s"!=g&&"n"!=g){if(r||i<=e)return!1;a=!1,i--}else{if(i<=e||s<g!=r)return!1;a=!1}else"s"!=g&&"n"!=g&&(a=!1,i--)}}var t=[],o=t.pop.bind(t);for(n=1;n<range.length;n++){var u=range[n];t.push(1==u?o()|o():2==u?o()&o():u?satisfy(u,version):!o())}return!!o();'
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])}`;
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//#endregion
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