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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Sergey Melyukov @smelukov
*/
"use strict";
const InnerGraph = require("./optimize/InnerGraph");
/** @typedef {import("./Compiler")} Compiler */
/** @typedef {import("./javascript/JavascriptParser")} JavascriptParser */
class JavascriptMetaInfoPlugin {
/**
* Apply the plugin
* @param {Compiler} compiler the compiler instance
* @returns {void}
*/
apply(compiler) {
compiler.hooks.compilation.tap(
"JavascriptMetaInfoPlugin",
(compilation, { normalModuleFactory }) => {
/**
* @param {JavascriptParser} parser the parser
* @returns {void}
*/
const handler = parser => {
parser.hooks.call.for("eval").tap("JavascriptMetaInfoPlugin", () => {
parser.state.module.buildInfo.moduleConcatenationBailout = "eval()";
parser.state.module.buildInfo.usingEval = true;
InnerGraph.bailout(parser.state);
});
parser.hooks.finish.tap("JavascriptMetaInfoPlugin", () => {
let topLevelDeclarations =
parser.state.module.buildInfo.topLevelDeclarations;
if (topLevelDeclarations === undefined) {
topLevelDeclarations =
parser.state.module.buildInfo.topLevelDeclarations = new Set();
}
for (const name of parser.scope.definitions.asSet()) {
const freeInfo = parser.getFreeInfoFromVariable(name);
if (freeInfo === undefined) {
topLevelDeclarations.add(name);
}
}
});
};
normalModuleFactory.hooks.parser
.for("javascript/auto")
.tap("JavascriptMetaInfoPlugin", handler);
normalModuleFactory.hooks.parser
.for("javascript/dynamic")
.tap("JavascriptMetaInfoPlugin", handler);
normalModuleFactory.hooks.parser
.for("javascript/esm")
.tap("JavascriptMetaInfoPlugin", handler);
}
);
}
}
module.exports = JavascriptMetaInfoPlugin;