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alexandre_ |
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/*
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Copyright (c) 2004-2006, The Dojo Foundation
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All Rights Reserved.
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Licensed under the Academic Free License version 2.1 or above OR the
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modified BSD license. For more information on Dojo licensing, see:
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http://dojotoolkit.org/community/licensing.shtml
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*/
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dojo.provide("dojo.lang.type");
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dojo.require("dojo.lang.common");
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dojo.lang.whatAmI = function (value) {
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dojo.deprecated("dojo.lang.whatAmI", "use dojo.lang.getType instead", "0.5");
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return dojo.lang.getType(value);
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};
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dojo.lang.whatAmI.custom = {};
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dojo.lang.getType = function (value) {
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try {
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if (dojo.lang.isArray(value)) {
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return "array";
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}
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if (dojo.lang.isFunction(value)) {
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return "function";
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}
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if (dojo.lang.isString(value)) {
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return "string";
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}
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if (dojo.lang.isNumber(value)) {
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return "number";
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}
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if (dojo.lang.isBoolean(value)) {
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return "boolean";
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}
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if (dojo.lang.isAlien(value)) {
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return "alien";
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}
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if (dojo.lang.isUndefined(value)) {
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return "undefined";
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}
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for (var name in dojo.lang.whatAmI.custom) {
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if (dojo.lang.whatAmI.custom[name](value)) {
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return name;
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}
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}
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if (dojo.lang.isObject(value)) {
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return "object";
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}
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}
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catch (e) {
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}
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return "unknown";
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};
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dojo.lang.isNumeric = function (value) {
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return (!isNaN(value) && isFinite(value) && (value != null) && !dojo.lang.isBoolean(value) && !dojo.lang.isArray(value) && !/^\s*$/.test(value));
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};
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dojo.lang.isBuiltIn = function (value) {
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return (dojo.lang.isArray(value) || dojo.lang.isFunction(value) || dojo.lang.isString(value) || dojo.lang.isNumber(value) || dojo.lang.isBoolean(value) || (value == null) || (value instanceof Error) || (typeof value == "error"));
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};
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dojo.lang.isPureObject = function (value) {
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return ((value != null) && dojo.lang.isObject(value) && value.constructor == Object);
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};
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dojo.lang.isOfType = function (value, type, keywordParameters) {
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var optional = false;
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if (keywordParameters) {
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optional = keywordParameters["optional"];
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}
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if (optional && ((value === null) || dojo.lang.isUndefined(value))) {
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return true;
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}
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if (dojo.lang.isArray(type)) {
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var arrayOfTypes = type;
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for (var i in arrayOfTypes) {
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var aType = arrayOfTypes[i];
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if (dojo.lang.isOfType(value, aType)) {
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return true;
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}
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}
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return false;
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} else {
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if (dojo.lang.isString(type)) {
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type = type.toLowerCase();
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}
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switch (type) {
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case Array:
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case "array":
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return dojo.lang.isArray(value);
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case Function:
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case "function":
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return dojo.lang.isFunction(value);
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case String:
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case "string":
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return dojo.lang.isString(value);
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case Number:
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case "number":
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return dojo.lang.isNumber(value);
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case "numeric":
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return dojo.lang.isNumeric(value);
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case Boolean:
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case "boolean":
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return dojo.lang.isBoolean(value);
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case Object:
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case "object":
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return dojo.lang.isObject(value);
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case "pureobject":
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return dojo.lang.isPureObject(value);
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case "builtin":
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return dojo.lang.isBuiltIn(value);
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case "alien":
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return dojo.lang.isAlien(value);
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case "undefined":
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return dojo.lang.isUndefined(value);
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case null:
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case "null":
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return (value === null);
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case "optional":
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dojo.deprecated("dojo.lang.isOfType(value, [type, \"optional\"])", "use dojo.lang.isOfType(value, type, {optional: true} ) instead", "0.5");
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return ((value === null) || dojo.lang.isUndefined(value));
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default:
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if (dojo.lang.isFunction(type)) {
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return (value instanceof type);
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} else {
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dojo.raise("dojo.lang.isOfType() was passed an invalid type");
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}
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}
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}
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dojo.raise("If we get here, it means a bug was introduced above.");
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};
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dojo.lang.getObject = function (str) {
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var parts = str.split("."), i = 0, obj = dj_global;
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do {
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obj = obj[parts[i++]];
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} while (i < parts.length && obj);
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return (obj != dj_global) ? obj : null;
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};
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dojo.lang.doesObjectExist = function (str) {
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var parts = str.split("."), i = 0, obj = dj_global;
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do {
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obj = obj[parts[i++]];
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} while (i < parts.length && obj);
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return (obj && obj != dj_global);
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};
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