twig.attr - Code Metrics - ForkNetwork/twig.js - Measure and Improve Code Quality continuously with Scrutinizer

twig.attr A
last analyzed 2016-11-28 10:32 UTC

↳ Parent: twig.attr

Complexity

Conditions	1
Paths	2

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
c	0
b	0
f	0
dl	0
loc	5
rs	9.4285
cc	1
nc	2
nop	2

/*
 * Copyright 2011 Johannes M. Schmitt <[email protected]>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * @fileoverview Contains some utility functions
 * 
 * The implementation of these methods are taken from the Google Closure Library,
 * but may be overridden by using implementations of jQuery et. al.
 */

goog.provide('twig');

goog.provide('twig.StringBuffer');

goog.require('goog.string');
goog.require('goog.string.StringBuffer');
goog.require('goog.object');
goog.require('goog.array');

twig.inherits = goog.inherits;

twig.bind = goog.bind;

goog.UID_PROPERTY_ = 'twig_ui_' + 
	Math.floor(Math.random() * 2147483648).toString(36);

/**
 * @constructor
 * @extends {goog.string.StringBuffer}
 */
twig.StringBuffer = goog.string.StringBuffer;

/**
 * Whether the given value is considered empty.
 * 
 * @param {*} value
 * @return {boolean}
 */
twig.empty = function(value) {
	if (null === value || false === value || undefined === value 
			|| 0 === value) {
		return true;
	}

	if (twig.countable(value)) {

		return 0 === twig.count(value);
	}
	
	return false;
};

/**
 * @param {Object} target
 * @param {...Object} var_args
 * @return {Object} The target object
 */
twig.extend = function(target, var_args) {

	goog.object.extend.apply(null, Array.prototype.slice.call(arguments, 0));

	
	return target;
};

/**
 * @enum {string}
 */
twig.AttrAccess = {

	ANY: 'any',
	ARRAY: 'array',
	METHOD: 'method'
};

/**
 * Returns the value of the given attr for the given object.
 * 
 * @param {Object|Array} obj
 * @param {string|number} attr
 * @param {Array.<*>=} opt_args
 * @param {twig.AttrAccess=} opt_accessType
 * @param {boolean=} opt_isTest
 * @return {*}
 */
twig.attr = function(obj, attr, opt_args, opt_accessType, opt_isTest) {
	var accessType = opt_accessType || twig.AttrAccess.ANY;

	var isTest = goog.isDef(opt_isTest) ? opt_isTest : false;

	
	if (!goog.isObject(obj) && !goog.isArray(obj)) {
		return isTest ? false : null;
	}
	
	if (attr in obj) {
		if (twig.AttrAccess.ARRAY !== accessType 
				&& goog.isFunction(obj[attr])) {
			if (isTest) {
				return true;
			}

			return obj[attr].apply(obj, opt_args || []);
		}
		
		if (twig.AttrAccess.METHOD !== accessType) {
			if (isTest) {
				return true;
			}

			return obj[attr];
		}
	}
	
	if (twig.AttrAccess.ARRAY === accessType
			|| goog.isArray(obj)) {
		if (isTest) {
			return false;
		}
		
		// FIXME: Should we add strict behavior similar to Twig's implementation?
		return null;
	}
	
	// check for getters/issers
	attr = attr.toLowerCase();
	var getter = 'get' + attr;
	var isser = 'is' + attr;
	var functionName = goog.object.findKey(obj, function(v, k) {
		k = k.toLowerCase();
		
		return k === getter || k === isser;
	});
	
	if (functionName && goog.isFunction(obj[functionName])) {

		if (isTest) {
			return true;
		}
		
		return obj[functionName].apply(obj, opt_args || []);
	}
	
	if (isTest) {
		return false;
	}
	
	// FIXME: Strict behavior?
	return null;
};

/**
 * Removes all non-meaningful spaces from the HTML.
 * 
 * @param {string} s
 * @return {string}
 */
twig.spaceless = function(s) {

	// Since IE doesn't include non-breaking-space (0xa0) in their \s character
	// class (as required by section 7.2 of the ECMAScript spec), we explicitly
	// include it in the regexp to enforce consistent cross-browser behavior.
	return goog.string.trim(s.replace(/>[\s\xa0]+</g, "><"));	

};

/**
 * Port of the PHP range() function.
 * 
 * @param {number} start
 * @param {number} end
 * @return {Array.<number>}
 */
twig.range = function(start, end) {

	var rs = [];
	for (;start <= end; start += 1) {
		rs.push(start);
	}
	
	return rs;
};

/**
 * @param {Array|Object|string} haystack
 * @param {*} needle
 * @return {boolean}
 */
twig.contains = function(haystack, needle) {

	if (goog.isArray(haystack)) {

		return goog.array.contains(/** @type {Array} */ (haystack), needle);
	}
	if (goog.isString(haystack)) {
		return (
			goog.string.contains(haystack, /** @type {string} */ (needle))
			&& (needle !== "" || haystack === "")
		);
	}
	
	return goog.object.contains(/** @type {Object} */ (haystack), needle);
};

/**
 * Returns whether the given value is countable.
 * 
 * @param {*} v
 * @return {boolean}
 */
twig.countable = function(v) {

	return goog.isArray(v) || goog.isString(v) || goog.isObject(v);

};

/**
 * Returns the count for the given value.
 * 
 * @param {*} v
 * @return {number}
 */
twig.count = function(v) {

	if (goog.isArray(v)) {

		return v.length;
	}
	
	if (goog.isString(v)) {
		return v.length;
	}
	
	if (goog.isObject(v)) {
		return goog.object.getCount(v);
	}
	
	return twig.castToString(v).length;

};

/**
 * Returns the given value as a string
 *
 * @param {*} value
 * @return {string}
 */
twig.castToString = function(value) {
	if (typeof value === "number") {
		return value.toString();
	}
	return "";
};

/**
 * 
 * @param {Array|Object} v
 * @param {Function} func
 * @param {Object=} opt_this
 */
twig.forEach = function(v, func, opt_this) {

	if (goog.isArray(v)) {

		goog.array.forEach(/** @type {Array} */ (v), func, opt_this);
		
		return;
	}
	
	goog.object.forEach(/** @type {Object} */ (v), func, opt_this);
};

/**
 * Creates an object literal if keys can be dynamic.
 * 
 * @param {...*} var_args
 * @return {Object}
 */
twig.createObj = function(var_args) {

	var rs = {};
	for (var i = 0; i<arguments.length; i += 2) {
		rs[arguments[i]] = arguments[i+1];
	}
	
	return rs;
};

/**
 * Escapes any special characters in a string for use in a regular expression
 *
 * @param {string} string
 * @return {string}
 */
twig.pregQuote = function(string) {

	return string.replace(/[\.\\+*?\[\]<>(){}^$=!|:-]/g, '\\$&');
};


1			/*
2			* Copyright 2011 Johannes M. Schmitt <[email protected]>
3			*
4			* Licensed under the Apache License, Version 2.0 (the "License");
5			* you may not use this file except in compliance with the License.
6			* You may obtain a copy of the License at
7			*
8			* http://www.apache.org/licenses/LICENSE-2.0
9			*
10			* Unless required by applicable law or agreed to in writing, software
11			* distributed under the License is distributed on an "AS IS" BASIS,
12			* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13			* See the License for the specific language governing permissions and
14			* limitations under the License.
15			*/
16
17			/**
18			* @fileoverview Contains some utility functions
19			*
20			* The implementation of these methods are taken from the Google Closure Library,
21			* but may be overridden by using implementations of jQuery et. al.
22			*/
23
24			goog.provide('twig');
			0 ignored issues – show Bug introduced 2016-11-25 14:46 UTC by Report Bug Copy Issue Report The variable `goog` seems to be never declared. If this is a global, consider adding a `/** global: goog */` comment. This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed. To learn more about declaring variables in Javascript, see the MDN. Loading history...
25			goog.provide('twig.StringBuffer');
26
27			goog.require('goog.string');
28			goog.require('goog.string.StringBuffer');
29			goog.require('goog.object');
30			goog.require('goog.array');
31
32			twig.inherits = goog.inherits;
			0 ignored issues – show Bug introduced 2016-11-25 14:46 UTC by Report Bug Copy Issue Report The variable `twig` seems to be never declared. If this is a global, consider adding a `/** global: twig */` comment. This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed. To learn more about declaring variables in Javascript, see the MDN. Loading history...
33			twig.bind = goog.bind;
34
35			goog.UID_PROPERTY_ = 'twig_ui_' +
36			Math.floor(Math.random() * 2147483648).toString(36);
37
38			/**
39			* @constructor
40			* @extends {goog.string.StringBuffer}
41			*/
42			twig.StringBuffer = goog.string.StringBuffer;
43
44			/**
45			* Whether the given value is considered empty.
46			*
47			* @param {*} value
48			* @return {boolean}
49			*/
50			twig.empty = function(value) {
51			if (null === value \|\| false === value \|\| undefined === value
52			\|\| 0 === value) {
53			return true;
54			}
55
56			if (twig.countable(value)) {
			0 ignored issues – show Bug introduced 2016-11-25 14:46 UTC by Report Bug Copy Issue Report The variable `twig` seems to be never declared. If this is a global, consider adding a `/** global: twig */` comment. This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed. To learn more about declaring variables in Javascript, see the MDN. Loading history...
57			return 0 === twig.count(value);
58			}
59
60			return false;
61			};
62
63			/**
64			* @param {Object} target
65			* @param {...Object} var_args
66			* @return {Object} The target object
67			*/
68			twig.extend = function(target, var_args) {
			0 ignored issues – show Unused Code introduced 2016-11-25 14:46 UTC by Report Bug Copy Issue Report The parameter `var_args` is not used and could be removed. This check looks for parameters in functions that are not used in the function body and are not followed by other parameters which are used inside the function. Loading history...
69			goog.object.extend.apply(null, Array.prototype.slice.call(arguments, 0));
			0 ignored issues – show Bug introduced 2016-11-25 14:46 UTC by Report Bug Copy Issue Report The variable `goog` seems to be never declared. If this is a global, consider adding a `/** global: goog */` comment. This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed. To learn more about declaring variables in Javascript, see the MDN. Loading history...
70
71			return target;
72			};
73
74			/**
75			* @enum {string}
76			*/
77			twig.AttrAccess = {
			0 ignored issues – show Bug introduced 2016-11-25 14:46 UTC by Report Bug Copy Issue Report The variable `twig` seems to be never declared. If this is a global, consider adding a `/** global: twig */` comment. This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed. To learn more about declaring variables in Javascript, see the MDN. Loading history...
78			ANY: 'any',
79			ARRAY: 'array',
80			METHOD: 'method'
81			};
82
83			/**
84			* Returns the value of the given attr for the given object.
85			*
86			* @param {Object\|Array} obj
87			* @param {string\|number} attr
88			* @param {Array.<*>=} opt_args
89			* @param {twig.AttrAccess=} opt_accessType
90			* @param {boolean=} opt_isTest
91			* @return {*}
92			*/
93			twig.attr = function(obj, attr, opt_args, opt_accessType, opt_isTest) {
94			var accessType = opt_accessType \|\| twig.AttrAccess.ANY;
			0 ignored issues – show Bug introduced 2016-11-25 14:46 UTC by Report Bug Copy Issue Report The variable `twig` seems to be never declared. If this is a global, consider adding a `/** global: twig */` comment. This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed. To learn more about declaring variables in Javascript, see the MDN. Loading history...
95			var isTest = goog.isDef(opt_isTest) ? opt_isTest : false;
			0 ignored issues – show Bug introduced 2016-11-25 14:46 UTC by Report Bug Copy Issue Report The variable `goog` seems to be never declared. If this is a global, consider adding a `/** global: goog */` comment. This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed. To learn more about declaring variables in Javascript, see the MDN. Loading history...
96
97			if (!goog.isObject(obj) && !goog.isArray(obj)) {
98			return isTest ? false : null;
99			}
100
101			if (attr in obj) {
102			if (twig.AttrAccess.ARRAY !== accessType
103			&& goog.isFunction(obj[attr])) {
104			if (isTest) {
105			return true;
106			}
107
108			return obj[attr].apply(obj, opt_args \|\| []);
109			}
110
111			if (twig.AttrAccess.METHOD !== accessType) {
112			if (isTest) {
113			return true;
114			}
115
116			return obj[attr];
117			}
118			}
119
120			if (twig.AttrAccess.ARRAY === accessType
121			\|\| goog.isArray(obj)) {
122			if (isTest) {
123			return false;
124			}
125
126			// FIXME: Should we add strict behavior similar to Twig's implementation?
127			return null;
128			}
129
130			// check for getters/issers
131			attr = attr.toLowerCase();
132			var getter = 'get' + attr;
133			var isser = 'is' + attr;
134			var functionName = goog.object.findKey(obj, function(v, k) {
135			k = k.toLowerCase();
136
137			return k === getter \|\| k === isser;
138			});
139
140			if (functionName && goog.isFunction(obj[functionName])) {
			0 ignored issues – show Bug introduced 2016-11-25 14:46 UTC by Report Bug Copy Issue Report The variable `goog` seems to be never declared. If this is a global, consider adding a `/** global: goog */` comment. This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed. To learn more about declaring variables in Javascript, see the MDN. Loading history...
141			if (isTest) {
142			return true;
143			}
144
145			return obj[functionName].apply(obj, opt_args \|\| []);
146			}
147
148			if (isTest) {
149			return false;
150			}
151
152			// FIXME: Strict behavior?
153			return null;
154			};
155
156			/**
157			* Removes all non-meaningful spaces from the HTML.
158			*
159			* @param {string} s
160			* @return {string}
161			*/
162			twig.spaceless = function(s) {
			0 ignored issues – show Bug introduced 2016-11-25 14:46 UTC by Report Bug Copy Issue Report The variable `twig` seems to be never declared. If this is a global, consider adding a `/** global: twig */` comment. This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed. To learn more about declaring variables in Javascript, see the MDN. Loading history...
163			// Since IE doesn't include non-breaking-space (0xa0) in their \s character
164			// class (as required by section 7.2 of the ECMAScript spec), we explicitly
165			// include it in the regexp to enforce consistent cross-browser behavior.
166			return goog.string.trim(s.replace(/>[\s\xa0]+</g, "><"));
			0 ignored issues – show Bug introduced 2016-11-25 14:46 UTC by Report Bug Copy Issue Report The variable `goog` seems to be never declared. If this is a global, consider adding a `/** global: goog */` comment. This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed. To learn more about declaring variables in Javascript, see the MDN. Loading history...
167			};
168
169			/**
170			* Port of the PHP range() function.
171			*
172			* @param {number} start
173			* @param {number} end
174			* @return {Array.<number>}
175			*/
176			twig.range = function(start, end) {
			0 ignored issues – show Bug introduced 2016-11-25 14:46 UTC by Report Bug Copy Issue Report The variable `twig` seems to be never declared. If this is a global, consider adding a `/** global: twig */` comment. This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed. To learn more about declaring variables in Javascript, see the MDN. Loading history...
177			var rs = [];
178			for (;start <= end; start += 1) {
179			rs.push(start);
180			}
181
182			return rs;
183			};
184
185			/**
186			* @param {Array\|Object\|string} haystack
187			* @param {*} needle
188			* @return {boolean}
189			*/
190			twig.contains = function(haystack, needle) {
			0 ignored issues – show Bug introduced 2016-11-25 14:46 UTC by Report Bug Copy Issue Report The variable `twig` seems to be never declared. If this is a global, consider adding a `/** global: twig */` comment. This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed. To learn more about declaring variables in Javascript, see the MDN. Loading history...
191			if (goog.isArray(haystack)) {
			0 ignored issues – show Bug introduced 2016-11-25 14:46 UTC by Report Bug Copy Issue Report The variable `goog` seems to be never declared. If this is a global, consider adding a `/** global: goog */` comment. This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed. To learn more about declaring variables in Javascript, see the MDN. Loading history...
192			return goog.array.contains(/** @type {Array} */ (haystack), needle);
193			}
194			if (goog.isString(haystack)) {
195			return (
196			goog.string.contains(haystack, /** @type {string} */ (needle))
197			&& (needle !== "" \|\| haystack === "")
198			);
199			}
200
201			return goog.object.contains(/** @type {Object} */ (haystack), needle);
202			};
203
204			/**
205			* Returns whether the given value is countable.
206			*
207			* @param {*} v
208			* @return {boolean}
209			*/
210			twig.countable = function(v) {
			0 ignored issues – show Bug introduced 2016-11-25 14:46 UTC by Report Bug Copy Issue Report The variable `twig` seems to be never declared. If this is a global, consider adding a `/** global: twig */` comment. This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed. To learn more about declaring variables in Javascript, see the MDN. Loading history...
211			return goog.isArray(v) \|\| goog.isString(v) \|\| goog.isObject(v);
			0 ignored issues – show Bug introduced 2016-11-25 14:46 UTC by Report Bug Copy Issue Report The variable `goog` seems to be never declared. If this is a global, consider adding a `/** global: goog */` comment. This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed. To learn more about declaring variables in Javascript, see the MDN. Loading history...
212			};
213
214			/**
215			* Returns the count for the given value.
216			*
217			* @param {*} v
218			* @return {number}
219			*/
220			twig.count = function(v) {
			0 ignored issues – show Bug introduced 2016-11-25 14:46 UTC by Report Bug Copy Issue Report The variable `twig` seems to be never declared. If this is a global, consider adding a `/** global: twig */` comment. This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed. To learn more about declaring variables in Javascript, see the MDN. Loading history...
221			if (goog.isArray(v)) {
			0 ignored issues – show Bug introduced 2016-11-25 14:46 UTC by Report Bug Copy Issue Report The variable `goog` seems to be never declared. If this is a global, consider adding a `/** global: goog */` comment. This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed. To learn more about declaring variables in Javascript, see the MDN. Loading history...
222			return v.length;
223			}
224
225			if (goog.isString(v)) {
226			return v.length;
227			}
228
229			if (goog.isObject(v)) {
230			return goog.object.getCount(v);
231			}
232
233			return twig.castToString(v).length;
			0 ignored issues – show Bug introduced 2016-11-25 14:46 UTC by Report Bug Copy Issue Report The variable `twig` seems to be never declared. If this is a global, consider adding a `/** global: twig */` comment. This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed. To learn more about declaring variables in Javascript, see the MDN. Loading history...
234			};
235
236			/**
237			* Returns the given value as a string
238			*
239			* @param {*} value
240			* @return {string}
241			*/
242			twig.castToString = function(value) {
243			if (typeof value === "number") {
244			return value.toString();
245			}
246			return "";
247			};
248
249			/**
250			*
251			* @param {Array\|Object} v
252			* @param {Function} func
253			* @param {Object=} opt_this
254			*/
255			twig.forEach = function(v, func, opt_this) {
			0 ignored issues – show Bug introduced 2016-11-25 14:46 UTC by Report Bug Copy Issue Report The variable `twig` seems to be never declared. If this is a global, consider adding a `/** global: twig */` comment. This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed. To learn more about declaring variables in Javascript, see the MDN. Loading history...
256			if (goog.isArray(v)) {
			0 ignored issues – show Bug introduced 2016-11-25 14:46 UTC by Report Bug Copy Issue Report The variable `goog` seems to be never declared. If this is a global, consider adding a `/** global: goog */` comment. This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed. To learn more about declaring variables in Javascript, see the MDN. Loading history...
257			goog.array.forEach(/** @type {Array} */ (v), func, opt_this);
258
259			return;
260			}
261
262			goog.object.forEach(/** @type {Object} */ (v), func, opt_this);
263			};
264
265			/**
266			* Creates an object literal if keys can be dynamic.
267			*
268			* @param {...*} var_args
269			* @return {Object}
270			*/
271			twig.createObj = function(var_args) {
			0 ignored issues – show Unused Code introduced 2016-11-25 14:46 UTC by Report Bug Copy Issue Report The parameter `var_args` is not used and could be removed. This check looks for parameters in functions that are not used in the function body and are not followed by other parameters which are used inside the function. Loading history... Bug introduced 2016-11-25 14:46 UTC by Report Bug Copy Issue Report The variable `twig` seems to be never declared. If this is a global, consider adding a `/** global: twig */` comment. This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed. To learn more about declaring variables in Javascript, see the MDN. Loading history...
272			var rs = {};
273			for (var i = 0; i<arguments.length; i += 2) {
274			rs[arguments[i]] = arguments[i+1];
275			}
276
277			return rs;
278			};
279
280			/**
281			* Escapes any special characters in a string for use in a regular expression
282			*
283			* @param {string} string
284			* @return {string}
285			*/
286			twig.pregQuote = function(string) {
			0 ignored issues – show Bug introduced 2016-11-25 14:46 UTC by Report Bug Copy Issue Report The variable `twig` seems to be never declared. If this is a global, consider adding a `/** global: twig */` comment. This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed. To learn more about declaring variables in Javascript, see the MDN. Loading history...
287			return string.replace(/[\.\\+*?\[\]<>(){}^$=!\|:-]/g, '\\$&');
288			};
289

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twig.attr A last analyzed 2016-11-28 10:32 UTC

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twig.attr A
last analyzed 2016-11-28 10:32 UTC