45 lines
1.6 KiB
JavaScript
45 lines
1.6 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 Tobias Koppers @sokra
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*/
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"use strict";
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const ParserHelpers = require("../ParserHelpers");
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class SystemPlugin {
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constructor(options) {
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this.options = options;
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}
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apply(compiler) {
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compiler.plugin("compilation", (compilation, params) => {
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params.normalModuleFactory.plugin("parser", (parser, parserOptions) => {
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if(typeof parserOptions.system !== "undefined" && !parserOptions.system)
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return;
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function setNotSupported(name) {
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parser.plugin("evaluate typeof " + name, ParserHelpers.evaluateToString("undefined"));
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parser.plugin("expression " + name,
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ParserHelpers.expressionIsUnsupported(name + " is not supported by webpack.")
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);
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}
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parser.plugin("typeof System.import", ParserHelpers.toConstantDependency(JSON.stringify("function")));
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parser.plugin("evaluate typeof System.import", ParserHelpers.evaluateToString("function"));
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parser.plugin("typeof System", ParserHelpers.toConstantDependency(JSON.stringify("object")));
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parser.plugin("evaluate typeof System", ParserHelpers.evaluateToString("object"));
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setNotSupported("System.set");
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setNotSupported("System.get");
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setNotSupported("System.register");
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parser.plugin("expression System", function() {
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const systemPolyfillRequire = ParserHelpers.requireFileAsExpression(
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this.state.module.context, require.resolve("../../buildin/system.js"));
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return ParserHelpers.addParsedVariableToModule(this, "System", systemPolyfillRequire);
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});
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});
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});
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}
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}
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module.exports = SystemPlugin;
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