webpack/lib/SetVarMainTemplateDecorator.js

33 lines
1.2 KiB
JavaScript

/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
var ConcatSource = require("webpack-core/lib/ConcatSource");
var Template = require("./Template");
function SetVarMainTemplateDecorator(mainTemplate, varExpression, copyObject) {
this.mainTemplate = mainTemplate;
this.varExpression = varExpression;
this.copyObject = copyObject;
}
module.exports = SetVarMainTemplateDecorator;
SetVarMainTemplateDecorator.prototype.render = function(hash, chunk, moduleTemplate, dependencyTemplates) {
var source = this.mainTemplate.render(hash, chunk, moduleTemplate, dependencyTemplates);
var varExpression = this.varExpression
.replace(Template.REGEXP_CHUNKHASH, chunk.renderedHash)
.replace(Template.REGEXP_ID, chunk.id)
.replace(Template.REGEXP_NAME, chunk.name || "");
if(this.copyObject) {
return new ConcatSource("(function(e, a) { for(var i in a) e[i] = a[i]; }(" +
varExpression + ", ", source, "))");
} else {
var prefix = varExpression + " =\n";
return new ConcatSource(prefix, source);
}
};
SetVarMainTemplateDecorator.prototype.updateHash = function(hash) {
hash.update("set var");
hash.update(this.varExpression + "");
hash.update(this.copyObject + "");
this.mainTemplate.updateHash(hash);
};