webpack/lib/web/JsonpExportMainTemplatePlugin.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 { ConcatSource } = require("webpack-sources");

class JsonpExportMainTemplatePlugin {
	/**
	 * @param {string} name jsonp function name
	 */
	constructor(name) {
		this.name = name;
	}

	apply(compilation) {
		const { mainTemplate, chunkTemplate } = compilation;

		const onRenderWithEntry = (source, chunk, hash) => {
			const name = mainTemplate.getAssetPath(this.name || "", {
				hash,
				chunk
			});
			return new ConcatSource(`${name}(`, source, ");");
		};

		for (const template of [mainTemplate, chunkTemplate]) {
			template.hooks.renderWithEntry.tap(
				"JsonpExportMainTemplatePlugin",
				onRenderWithEntry
			);
		}

		mainTemplate.hooks.globalHashPaths.tap(
			"JsonpExportMainTemplatePlugin",
			paths => {
				if (this.name) paths.push(this.name);
				return paths;
			}
		);

		mainTemplate.hooks.hash.tap("JsonpExportMainTemplatePlugin", hash => {
			hash.update("jsonp export");
			hash.update(`${this.name}`);
		});
	}
}

module.exports = JsonpExportMainTemplatePlugin;