mirror of https://github.com/webpack/webpack.git
79 lines
1.9 KiB
JavaScript
79 lines
1.9 KiB
JavaScript
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/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Ivan Kopeykin @vankop
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*/
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"use strict";
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const URLDependency = require("./URLDependency");
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/** @typedef {import("estree").NewExpression} NewExpressionNode */
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/** @typedef {import("../Compiler")} Compiler */
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/** @typedef {import("../javascript/JavascriptParser")} JavascriptParser */
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class URLPlugin {
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/**
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* @param {Compiler} compiler compiler
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*/
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apply(compiler) {
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compiler.hooks.compilation.tap(
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"URLPlugin",
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(compilation, { normalModuleFactory }) => {
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compilation.dependencyFactories.set(URLDependency, normalModuleFactory);
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compilation.dependencyTemplates.set(
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URLDependency,
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new URLDependency.Template()
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);
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/**
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* @param {JavascriptParser} parser parser
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*/
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const parserCallback = parser => {
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parser.hooks.new.for("URL").tap("URLPlugin", _expr => {
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const expr = /** @type {NewExpressionNode} */ (_expr);
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if (expr.arguments.length !== 2) return;
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const [arg1, arg2] = expr.arguments;
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if (
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arg2.type !== "MemberExpression" ||
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arg1.type === "SpreadElement"
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)
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return;
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const chain = parser.extractMemberExpressionChain(arg2);
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if (
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chain.members.length !== 1 ||
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chain.object.type !== "MetaProperty" ||
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chain.object.property.name !== "meta" ||
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chain.members[0] !== "url"
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)
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return;
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const request = parser.evaluateExpression(arg1).asString();
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if (!request) return;
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const dep = new URLDependency(request, expr.range);
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dep.loc = expr.loc;
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parser.state.module.addDependency(dep);
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return true;
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});
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};
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normalModuleFactory.hooks.parser
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.for("javascript/auto")
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.tap("URLPlugin", parserCallback);
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normalModuleFactory.hooks.parser
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.for("javascript/esm")
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.tap("URLPlugin", parserCallback);
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}
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);
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}
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}
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module.exports = URLPlugin;
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