first commit

build/node_modules/webpack-core/lib/OptionsDefaulter.js

@@ -0,0 +1,70 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+function OptionsDefaulter() {
+	this.defaults = {};
+	this.config = {};
+}
+module.exports = OptionsDefaulter;
+
+function getProperty(obj, name) {
+	name = name.split(".");
+	for(var i = 0; i < name.length - 1; i++) {
+		obj = obj[name[i]];
+		if(typeof obj != "object" || !obj) return;
+	}
+	return obj[name.pop()];
+}
+
+function setProperty(obj, name, value) {
+	name = name.split(".");
+	for(var i = 0; i < name.length - 1; i++) {
+		if(typeof (obj[name[i]]) !== "object" || !obj[name[i]]) obj[name[i]] = {};
+		obj = obj[name[i]];
+	}
+	obj[name.pop()] = value;
+}
+
+function hasProperty(obj, name, value) {
+	name = name.split(".");
+	for(var i = 0; i < name.length - 1; i++) {
+		obj = obj[name[i]];
+		if(typeof obj != "object" || !obj) return false;
+	}
+	return Object.prototype.hasOwnProperty.call(obj, name.pop());
+}
+
+OptionsDefaulter.prototype.process = function(options) {
+	for(var name in this.defaults) {
+		switch(this.config[name]) {
+		case undefined:
+			if(getProperty(options, name) === undefined)
+				setProperty(options, name, this.defaults[name]);
+			break;
+		case "call":
+			setProperty(options, name, this.defaults[name].call(this, getProperty(options, name)), options);
+			break;
+		case "append":
+			var oldValue = getProperty(options, name);
+			if(!Array.isArray(oldValue)) oldValue = [];
+			this.defaults[name].forEach(function(item) {
+				oldValue.push(item);
+			});
+			setProperty(options, name, oldValue);
+			break;
+		default:
+			throw new Error("OptionsDefaulter cannot process " + this.config[name]);
+		}
+	}
+};
+
+OptionsDefaulter.prototype.set = function(name, config, def) {
+	if(arguments.length === 3) {
+		this.defaults[name] = def;
+		this.config[name] = config;
+	} else {
+		this.defaults[name] = config;
+		delete this.config[name];
+	}
+}