webpack/lib/node/NodeMainTemplate.js

65 lines
2.1 KiB
JavaScript

/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
var MainTemplate = require("../MainTemplate");
var Template = require("../Template");
function NodeMainTemplate(outputOptions) {
MainTemplate.call(this, outputOptions);
}
module.exports = NodeMainTemplate;
NodeMainTemplate.prototype = Object.create(MainTemplate.prototype);
NodeMainTemplate.prototype.requireFn = "webpackRequire";
NodeMainTemplate.prototype.renderLocalVars = function(hash, chunk) {
var buf = MainTemplate.prototype.renderLocalVars.call(this, hash, chunk);
if(chunk.chunks.length > 0) {
buf.push(
"",
"// object to store loaded chunks",
'// "1" means "already loaded"',
"var installedChunks = {0:1};"
);
}
return buf;
};
NodeMainTemplate.prototype.renderRequireEnsure = function(hash, chunk) {
var filename = this.outputOptions.filename || "bundle.js";
var chunkFilename = this.outputOptions.chunkFilename || "[id]." + filename;
return [
"// \"1\" is the signal for \"already loaded\"",
"if(!installedChunks[chunkId]) {",
this.indent([
"var chunk = require(" +
JSON.stringify("./" + chunkFilename
.replace(Template.REGEXP_HASH, hash)
.replace(Template.REGEXP_NAME, ""))
.replace(Template.REGEXP_ID, "\" + chunkId + \"") + ");",
"var moreModules = chunk.modules, chunkIds = chunk.ids;",
"for(var moduleId in moreModules) {",
this.indent(this.renderAddModule(hash, chunk, "moduleId", "moreModules[moduleId]")),
"}",
"for(var i = 0; i < chunkIds.length; i++)",
this.indent("installedChunks[chunkIds[i]] = 1;"),
]),
"}",
"callback.call(null, " + this.requireFn + ");",
];
};
NodeMainTemplate.prototype.renderRequireExtensions = function(hash, chunk) {
var buf = MainTemplate.prototype.renderRequireExtensions.call(this, hash, chunk);
buf.push(this.requireFn + ".parentRequire = require;");
return buf;
};
NodeMainTemplate.prototype.updateHash = function(hash) {
MainTemplate.prototype.updateHash.call(this, hash);
hash.update("node");
hash.update("3");
hash.update(this.outputOptions.filename + "");
hash.update(this.outputOptions.chunkFilename + "");
};