webpack/lib/dependencies/RequireIncludeDependencyParserPlugin.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, jsx, es7, css, less, ... and your custom stuff.

/*
	MIT License http://www.opensource.org/licenses/mit-license.php
	Author Tobias Koppers @sokra
*/

"use strict";

const WebpackError = require("../WebpackError");
const {
	evaluateToString,
	toConstantDependency
} = require("../javascript/JavascriptParserHelpers");
const makeSerializable = require("../util/makeSerializable");
const RequireIncludeDependency = require("./RequireIncludeDependency");

module.exports = class RequireIncludeDependencyParserPlugin {
	constructor(warn) {
		this.warn = warn;
	}
	apply(parser) {
		const { warn } = this;
		parser.hooks.call
			.for("require.include")
			.tap("RequireIncludeDependencyParserPlugin", expr => {
				if (expr.arguments.length !== 1) return;
				const param = parser.evaluateExpression(expr.arguments[0]);
				if (!param.isString()) return;

				if (warn) {
					parser.state.module.addWarning(
						new RequireIncludeDeprecationWarning(expr.loc)
					);
				}

				const dep = new RequireIncludeDependency(param.string, expr.range);
				dep.loc = expr.loc;
				parser.state.current.addDependency(dep);
				return true;
			});
		parser.hooks.evaluateTypeof
			.for("require.include")
			.tap("RequireIncludePlugin", expr => {
				if (warn) {
					parser.state.module.addWarning(
						new RequireIncludeDeprecationWarning(expr.loc)
					);
				}
				return evaluateToString("function")(expr);
			});
		parser.hooks.typeof
			.for("require.include")
			.tap("RequireIncludePlugin", expr => {
				if (warn) {
					parser.state.module.addWarning(
						new RequireIncludeDeprecationWarning(expr.loc)
					);
				}
				return toConstantDependency(parser, JSON.stringify("function"))(expr);
			});
	}
};

class RequireIncludeDeprecationWarning extends WebpackError {
	constructor(loc) {
		super("require.include() is deprecated and will be removed soon.");

		this.name = "RequireIncludeDeprecationWarning";

		this.loc = loc;
	}
}

makeSerializable(
	RequireIncludeDeprecationWarning,
	"webpack/lib/dependencies/RequireIncludeDependencyParserPlugin",
	"RequireIncludeDeprecationWarning"
);