Marc Mintel
5397309103
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79 lines
2.2 KiB
Plaintext
79 lines
2.2 KiB
Plaintext
/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Sergey Melyukov @smelukov
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*/
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"use strict";
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const {
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JAVASCRIPT_MODULE_TYPE_AUTO,
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JAVASCRIPT_MODULE_TYPE_DYNAMIC,
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JAVASCRIPT_MODULE_TYPE_ESM
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} = require("./ModuleTypeConstants");
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const InnerGraph = require("./optimize/InnerGraph");
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/** @typedef {import("./Compiler")} Compiler */
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/** @typedef {import("./Module").BuildInfo} BuildInfo */
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/** @typedef {import("./javascript/JavascriptParser")} JavascriptParser */
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const PLUGIN_NAME = "JavascriptMetaInfoPlugin";
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class JavascriptMetaInfoPlugin {
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/**
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* Apply the plugin
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* @param {Compiler} compiler the compiler instance
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* @returns {void}
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*/
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apply(compiler) {
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compiler.hooks.compilation.tap(
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PLUGIN_NAME,
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(compilation, { normalModuleFactory }) => {
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/**
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* @param {JavascriptParser} parser the parser
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* @returns {void}
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*/
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const handler = (parser) => {
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parser.hooks.call.for("eval").tap(PLUGIN_NAME, () => {
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const buildInfo =
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/** @type {BuildInfo} */
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(parser.state.module.buildInfo);
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buildInfo.moduleConcatenationBailout = "eval()";
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const currentSymbol = InnerGraph.getTopLevelSymbol(parser.state);
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if (currentSymbol) {
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InnerGraph.addUsage(parser.state, null, currentSymbol);
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} else {
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InnerGraph.bailout(parser.state);
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}
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});
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parser.hooks.finish.tap(PLUGIN_NAME, () => {
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const buildInfo =
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/** @type {BuildInfo} */
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(parser.state.module.buildInfo);
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let topLevelDeclarations = buildInfo.topLevelDeclarations;
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if (topLevelDeclarations === undefined) {
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topLevelDeclarations = buildInfo.topLevelDeclarations = new Set();
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}
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for (const name of parser.scope.definitions.asSet()) {
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if (parser.isVariableDefined(name)) {
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topLevelDeclarations.add(name);
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}
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}
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});
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};
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normalModuleFactory.hooks.parser
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.for(JAVASCRIPT_MODULE_TYPE_AUTO)
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.tap(PLUGIN_NAME, handler);
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normalModuleFactory.hooks.parser
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.for(JAVASCRIPT_MODULE_TYPE_DYNAMIC)
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.tap(PLUGIN_NAME, handler);
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normalModuleFactory.hooks.parser
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.for(JAVASCRIPT_MODULE_TYPE_ESM)
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.tap(PLUGIN_NAME, handler);
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}
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);
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}
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}
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module.exports = JavascriptMetaInfoPlugin;
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