mirror of https://github.com/webpack/webpack.git
46 lines
1.5 KiB
JavaScript
46 lines
1.5 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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var ConstDependency = require("./dependencies/ConstDependency");
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var BasicEvaluatedExpression = require("./BasicEvaluatedExpression");
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var NullFactory = require("./NullFactory");
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function ExtendedAPIPlugin() {
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}
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module.exports = ExtendedAPIPlugin;
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var REPLACEMENTS = {
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__webpack_hash__: "__webpack_require__.h"
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};
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var REPLACEMENT_TYPES = {
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__webpack_hash__: "string"
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};
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ExtendedAPIPlugin.prototype.apply = function(compiler) {
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compiler.plugin("compilation", function(compilation, params) {
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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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compilation.mainTemplate.plugin("require-extensions", function(source, chunk, hash) {
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var buf = [source];
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buf.push("");
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buf.push("// __webpack_hash__");
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buf.push(this.requireFn + ".h = " + JSON.stringify(hash) + ";");
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return this.asString(buf);
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});
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compilation.mainTemplate.plugin("global-hash", function() {
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return true;
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});
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});
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Object.keys(REPLACEMENTS).forEach(function(key) {
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compiler.parser.plugin("expression "+key, function(expr) {
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var dep = new ConstDependency(REPLACEMENTS[key], expr.range);
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dep.loc = expr.loc;
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this.state.current.addDependency(dep);
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return true;
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});
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compiler.parser.plugin("evaluate typeof "+key, function(expr) {
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return new BasicEvaluatedExpression().setString(REPLACEMENT_TYPES[key]).setRange(expr.range);
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});
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});
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};
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