90 lines
4.2 KiB
JavaScript
90 lines
4.2 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 ConstDependency = require("./ConstDependency");
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const CommonJsRequireDependency = require("./CommonJsRequireDependency");
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const CommonJsRequireContextDependency = require("./CommonJsRequireContextDependency");
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const RequireResolveDependency = require("./RequireResolveDependency");
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const RequireResolveContextDependency = require("./RequireResolveContextDependency");
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const RequireResolveHeaderDependency = require("./RequireResolveHeaderDependency");
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const RequireHeaderDependency = require("./RequireHeaderDependency");
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const NullFactory = require("../NullFactory");
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const RequireResolveDependencyParserPlugin = require("./RequireResolveDependencyParserPlugin");
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const CommonJsRequireDependencyParserPlugin = require("./CommonJsRequireDependencyParserPlugin");
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const ParserHelpers = require("../ParserHelpers");
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class CommonJsPlugin {
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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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const options = this.options;
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compiler.plugin("compilation", (compilation, params) => {
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const normalModuleFactory = params.normalModuleFactory;
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const contextModuleFactory = params.contextModuleFactory;
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compilation.dependencyFactories.set(CommonJsRequireDependency, normalModuleFactory);
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compilation.dependencyTemplates.set(CommonJsRequireDependency, new CommonJsRequireDependency.Template());
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compilation.dependencyFactories.set(CommonJsRequireContextDependency, contextModuleFactory);
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compilation.dependencyTemplates.set(CommonJsRequireContextDependency, new CommonJsRequireContextDependency.Template());
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compilation.dependencyFactories.set(RequireResolveDependency, normalModuleFactory);
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compilation.dependencyTemplates.set(RequireResolveDependency, new RequireResolveDependency.Template());
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compilation.dependencyFactories.set(RequireResolveContextDependency, contextModuleFactory);
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compilation.dependencyTemplates.set(RequireResolveContextDependency, new RequireResolveContextDependency.Template());
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compilation.dependencyFactories.set(RequireResolveHeaderDependency, new NullFactory());
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compilation.dependencyTemplates.set(RequireResolveHeaderDependency, new RequireResolveHeaderDependency.Template());
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compilation.dependencyFactories.set(RequireHeaderDependency, new NullFactory());
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compilation.dependencyTemplates.set(RequireHeaderDependency, new RequireHeaderDependency.Template());
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params.normalModuleFactory.plugin("parser", (parser, parserOptions) => {
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if(typeof parserOptions.commonjs !== "undefined" && !parserOptions.commonjs)
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return;
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const requireExpressions = ["require", "require.resolve", "require.resolveWeak"];
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for(let expression of requireExpressions) {
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parser.plugin(`typeof ${expression}`, ParserHelpers.toConstantDependency(JSON.stringify("function")));
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parser.plugin(`evaluate typeof ${expression}`, ParserHelpers.evaluateToString("function"));
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parser.plugin(`evaluate Identifier ${expression}`, ParserHelpers.evaluateToIdentifier(expression, true));
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}
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parser.plugin("evaluate typeof module", ParserHelpers.evaluateToString("object"));
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parser.plugin("assign require", (expr) => {
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// to not leak to global "require", we need to define a local require here.
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const dep = new ConstDependency("var require;", 0);
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dep.loc = expr.loc;
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parser.state.current.addDependency(dep);
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parser.scope.definitions.push("require");
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return true;
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});
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parser.plugin("can-rename require", () => true);
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parser.plugin("rename require", (expr) => {
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// define the require variable. It's still undefined, but not "not defined".
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const dep = new ConstDependency("var require;", 0);
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dep.loc = expr.loc;
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parser.state.current.addDependency(dep);
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return false;
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});
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parser.plugin("typeof module", () => true);
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parser.plugin("evaluate typeof exports", ParserHelpers.evaluateToString("object"));
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parser.apply(
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new CommonJsRequireDependencyParserPlugin(options),
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new RequireResolveDependencyParserPlugin(options)
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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 = CommonJsPlugin;
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