90 lines
2.4 KiB
JavaScript
90 lines
2.4 KiB
JavaScript
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'use strict';
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const { compare, filterOutStabilizedProposals, has, intersection } = require('./helpers');
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const data = require('./data');
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const entries = require('./entries');
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const getModulesListForTargetVersion = require('./get-modules-list-for-target-version');
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const allModules = require('./modules');
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const targetsParser = require('./targets-parser');
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function throwInvalidFilter(filter) {
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throw TypeError(`Specified invalid module name or pattern: ${ filter }`);
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}
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function atLeastSomeModules(modules, filter) {
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if (!modules.length) throwInvalidFilter(filter);
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return modules;
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}
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function getModules(filter) {
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if (typeof filter == 'string') {
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if (has(entries, filter)) return entries[filter];
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return atLeastSomeModules(allModules.filter(it => it.startsWith(filter)), filter);
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} else if (filter instanceof RegExp) return atLeastSomeModules(allModules.filter(it => filter.test(it)), filter);
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throwInvalidFilter(filter);
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}
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function normalizeModules(option) {
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// TODO: use `.flatMap` in core-js@4
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return new Set(Array.isArray(option) ? [].concat.apply([], option.map(getModules)) : getModules(option));
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}
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function checkModule(name, targets) {
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const result = {
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required: !targets,
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targets: {},
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};
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if (!targets) return result;
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const requirements = data[name];
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for (const [engine, version] of targets) {
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if (!has(requirements, engine) || compare(version, '<', requirements[engine])) {
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result.required = true;
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result.targets[engine] = version;
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}
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}
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return result;
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}
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module.exports = function ({
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filter = null, // TODO: Obsolete, remove from `core-js@4`
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modules = null,
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exclude = [],
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targets = null,
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version = null,
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inverse = false,
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} = {}) {
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if (modules == null) modules = filter;
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inverse = !!inverse;
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const parsedTargets = targets ? targetsParser(targets) : null;
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const result = {
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list: [],
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targets: {},
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};
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exclude = normalizeModules(exclude);
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modules = modules ? [...normalizeModules(modules)] : allModules;
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if (exclude.size) modules = modules.filter(it => !exclude.has(it));
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modules = intersection(modules, version ? getModulesListForTargetVersion(version) : allModules);
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if (!inverse) modules = filterOutStabilizedProposals(modules);
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for (const key of modules) {
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const check = checkModule(key, parsedTargets);
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if (check.required ^ inverse) {
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result.list.push(key);
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result.targets[key] = check.targets;
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}
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}
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return result;
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};
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