webpack/lib/APIPlugin.js

Packs CommonJs/AMD modules for the browser. Allows to split your codebase into multiple bundles, which can be loaded on demand. Support loaders to preprocess files, i.e. json, jade, coffee, css, less, ... and your custom stuff.

/*
	MIT License http://www.opensource.org/licenses/mit-license.php
	Author Tobias Koppers @sokra
*/
var ConstDependency = require("./dependencies/ConstDependency");
var BasicEvaluatedExpression = require("./BasicEvaluatedExpression");

var NullFactory = require("./NullFactory");

function APIPlugin() {
}
module.exports = APIPlugin;

var REPLACEMENTS = {
	__webpack_public_path__: "__webpack_require__.p",
	__webpack_modules__: "__webpack_require__.m",
	__webpack_chunk_load__: "__webpack_require__.e",
	__non_webpack_require__: "require",
	"require.onError": "__webpack_require__.onError",
};
var REPLACEMENT_TYPES = {
	__webpack_public_path__: "string",
	__webpack_require__: "function",
	__webpack_modules__: "object",
	__webpack_chunk_load__: "function",
};
var IGNORES = [
];
APIPlugin.prototype.apply = function(compiler) {
	compiler.plugin("compilation", function(compilation, params) {
		compilation.dependencyFactories.set(ConstDependency, new NullFactory());
		compilation.dependencyTemplates.set(ConstDependency, new ConstDependency.Template());
	});
	Object.keys(REPLACEMENTS).forEach(function(key) {
		compiler.parser.plugin("expression "+key, function(expr) {
			var dep = new ConstDependency(REPLACEMENTS[key], expr.range);
			dep.loc = expr.loc;
			this.state.current.addDependency(dep);
			return true;
		});
		compiler.parser.plugin("evaluate typeof "+key, function(expr) {
			return new BasicEvaluatedExpression().setString(REPLACEMENT_TYPES[key]).setRange(expr.range);
		});
	});
	IGNORES.forEach(function(key) {
		compiler.parser.plugin(key, function(expr) {
			return true;
		});
	});
};