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158 lines
4.9 KiB
158 lines
4.9 KiB
/*
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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.hooks.compilation.tap(
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"CommonJsPlugin",
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(compilation, { contextModuleFactory, normalModuleFactory }) => {
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compilation.dependencyFactories.set(
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CommonJsRequireDependency,
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normalModuleFactory
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);
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compilation.dependencyTemplates.set(
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CommonJsRequireDependency,
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new CommonJsRequireDependency.Template()
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);
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compilation.dependencyFactories.set(
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CommonJsRequireContextDependency,
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contextModuleFactory
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);
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compilation.dependencyTemplates.set(
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CommonJsRequireContextDependency,
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new CommonJsRequireContextDependency.Template()
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);
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compilation.dependencyFactories.set(
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RequireResolveDependency,
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normalModuleFactory
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);
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compilation.dependencyTemplates.set(
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RequireResolveDependency,
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new RequireResolveDependency.Template()
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);
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compilation.dependencyFactories.set(
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RequireResolveContextDependency,
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contextModuleFactory
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);
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compilation.dependencyTemplates.set(
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RequireResolveContextDependency,
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new RequireResolveContextDependency.Template()
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);
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compilation.dependencyFactories.set(
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RequireResolveHeaderDependency,
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new NullFactory()
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);
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compilation.dependencyTemplates.set(
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RequireResolveHeaderDependency,
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new RequireResolveHeaderDependency.Template()
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);
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compilation.dependencyFactories.set(
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RequireHeaderDependency,
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new NullFactory()
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);
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compilation.dependencyTemplates.set(
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RequireHeaderDependency,
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new RequireHeaderDependency.Template()
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);
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const handler = (parser, parserOptions) => {
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if (parserOptions.commonjs !== undefined && !parserOptions.commonjs)
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return;
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const requireExpressions = [
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"require",
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"require.resolve",
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"require.resolveWeak"
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];
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for (let expression of requireExpressions) {
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parser.hooks.typeof
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.for(expression)
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.tap(
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"CommonJsPlugin",
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ParserHelpers.toConstantDependency(
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parser,
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JSON.stringify("function")
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)
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);
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parser.hooks.evaluateTypeof
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.for(expression)
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.tap(
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"CommonJsPlugin",
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ParserHelpers.evaluateToString("function")
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);
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parser.hooks.evaluateIdentifier
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.for(expression)
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.tap(
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"CommonJsPlugin",
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ParserHelpers.evaluateToIdentifier(expression, true)
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);
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}
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parser.hooks.evaluateTypeof
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.for("module")
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.tap("CommonJsPlugin", ParserHelpers.evaluateToString("object"));
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parser.hooks.assign.for("require").tap("CommonJsPlugin", 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.add("require");
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return true;
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});
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parser.hooks.canRename
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.for("require")
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.tap("CommonJsPlugin", () => true);
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parser.hooks.rename.for("require").tap("CommonJsPlugin", 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.hooks.typeof.for("module").tap("CommonJsPlugin", () => true);
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parser.hooks.evaluateTypeof
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.for("exports")
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.tap("CommonJsPlugin", ParserHelpers.evaluateToString("object"));
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new CommonJsRequireDependencyParserPlugin(options).apply(parser);
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new RequireResolveDependencyParserPlugin(options).apply(parser);
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};
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normalModuleFactory.hooks.parser
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.for("javascript/auto")
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.tap("CommonJsPlugin", handler);
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normalModuleFactory.hooks.parser
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.for("javascript/dynamic")
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.tap("CommonJsPlugin", handler);
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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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