mirror of https://github.com/webpack/webpack.git
36 lines
1.5 KiB
JavaScript
36 lines
1.5 KiB
JavaScript
/*
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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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var path = require("path");
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var ConstDependency = require("./dependencies/ConstDependency");
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var NullFactory = require("./NullFactory");
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function CompatibilityPlugin() {}
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module.exports = CompatibilityPlugin;
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CompatibilityPlugin.prototype.apply = function(compiler) {
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compiler.plugin("compilation", function(compilation) {
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compilation.dependencyFactories.set(ConstDependency, new NullFactory());
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compilation.dependencyTemplates.set(ConstDependency, new ConstDependency.Template());
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});
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compiler.parser.plugin("call require", function(expr) {
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// support for browserify style require delegator: "require(o, !0)"
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if(expr.arguments.length !== 2) return;
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var second = this.evaluateExpression(expr.arguments[1]);
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if(!second.isBoolean()) return;
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if(second.asBool() !== true) return;
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var dep = new ConstDependency("require", expr.callee.range);
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dep.loc = expr.loc;
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if(this.state.current.dependencies.length > 1) {
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var last = this.state.current.dependencies[this.state.current.dependencies.length - 1];
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if(last.critical && last.request === "." && last.userRequest === "." && last.recursive)
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this.state.current.dependencies.pop();
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}
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dep.critical = "This seems to be a pre-built javascript file. Though this is possible, it's not recommended. Try to require the original source to get better results.";
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this.state.current.addDependency(dep);
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return true;
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});
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};
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