1248 lines
35 KiB
JavaScript
1248 lines
35 KiB
JavaScript
|
|
||
|
|
(function (global, module) {
|
||
|
|
|
||
|
|
if ('undefined' == typeof module) {
|
||
|
|
var module = { exports: {} }
|
||
|
|
, exports = module.exports
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Exports.
|
||
|
|
*/
|
||
|
|
|
||
|
|
module.exports = expect;
|
||
|
|
expect.Assertion = Assertion;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Exports version.
|
||
|
|
*/
|
||
|
|
|
||
|
|
expect.version = '0.1.2';
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Possible assertion flags.
|
||
|
|
*/
|
||
|
|
|
||
|
|
var flags = {
|
||
|
|
not: ['to', 'be', 'have', 'include', 'only']
|
||
|
|
, to: ['be', 'have', 'include', 'only', 'not']
|
||
|
|
, only: ['have']
|
||
|
|
, have: ['own']
|
||
|
|
, be: ['an']
|
||
|
|
};
|
||
|
|
|
||
|
|
function expect (obj) {
|
||
|
|
return new Assertion(obj);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Constructor
|
||
|
|
*
|
||
|
|
* @api private
|
||
|
|
*/
|
||
|
|
|
||
|
|
function Assertion (obj, flag, parent) {
|
||
|
|
this.obj = obj;
|
||
|
|
this.flags = {};
|
||
|
|
|
||
|
|
if (undefined != parent) {
|
||
|
|
this.flags[flag] = true;
|
||
|
|
|
||
|
|
for (var i in parent.flags) {
|
||
|
|
if (parent.flags.hasOwnProperty(i)) {
|
||
|
|
this.flags[i] = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
var $flags = flag ? flags[flag] : keys(flags)
|
||
|
|
, self = this
|
||
|
|
|
||
|
|
if ($flags) {
|
||
|
|
for (var i = 0, l = $flags.length; i < l; i++) {
|
||
|
|
// avoid recursion
|
||
|
|
if (this.flags[$flags[i]]) continue;
|
||
|
|
|
||
|
|
var name = $flags[i]
|
||
|
|
, assertion = new Assertion(this.obj, name, this)
|
||
|
|
|
||
|
|
if ('function' == typeof Assertion.prototype[name]) {
|
||
|
|
// clone the function, make sure we dont touch the prot reference
|
||
|
|
var old = this[name];
|
||
|
|
this[name] = function () {
|
||
|
|
return old.apply(self, arguments);
|
||
|
|
}
|
||
|
|
|
||
|
|
for (var fn in Assertion.prototype) {
|
||
|
|
if (Assertion.prototype.hasOwnProperty(fn) && fn != name) {
|
||
|
|
this[name][fn] = bind(assertion[fn], assertion);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
this[name] = assertion;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Performs an assertion
|
||
|
|
*
|
||
|
|
* @api private
|
||
|
|
*/
|
||
|
|
|
||
|
|
Assertion.prototype.assert = function (truth, msg, error) {
|
||
|
|
var msg = this.flags.not ? error : msg
|
||
|
|
, ok = this.flags.not ? !truth : truth;
|
||
|
|
|
||
|
|
if (!ok) {
|
||
|
|
throw new Error(msg.call(this));
|
||
|
|
}
|
||
|
|
|
||
|
|
this.and = new Assertion(this.obj);
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Check if the value is truthy
|
||
|
|
*
|
||
|
|
* @api public
|
||
|
|
*/
|
||
|
|
|
||
|
|
Assertion.prototype.ok = function () {
|
||
|
|
this.assert(
|
||
|
|
!!this.obj
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' to be truthy' }
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' to be falsy' });
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Assert that the function throws.
|
||
|
|
*
|
||
|
|
* @param {Function|RegExp} callback, or regexp to match error string against
|
||
|
|
* @api public
|
||
|
|
*/
|
||
|
|
|
||
|
|
Assertion.prototype.throwError =
|
||
|
|
Assertion.prototype.throwException = function (fn) {
|
||
|
|
expect(this.obj).to.be.a('function');
|
||
|
|
|
||
|
|
var thrown = false
|
||
|
|
, not = this.flags.not
|
||
|
|
|
||
|
|
try {
|
||
|
|
this.obj();
|
||
|
|
} catch (e) {
|
||
|
|
if ('function' == typeof fn) {
|
||
|
|
fn(e);
|
||
|
|
} else if ('object' == typeof fn) {
|
||
|
|
var subject = 'string' == typeof e ? e : e.message;
|
||
|
|
if (not) {
|
||
|
|
expect(subject).to.not.match(fn);
|
||
|
|
} else {
|
||
|
|
expect(subject).to.match(fn);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
thrown = true;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ('object' == typeof fn && not) {
|
||
|
|
// in the presence of a matcher, ensure the `not` only applies to
|
||
|
|
// the matching.
|
||
|
|
this.flags.not = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
var name = this.obj.name || 'fn';
|
||
|
|
this.assert(
|
||
|
|
thrown
|
||
|
|
, function(){ return 'expected ' + name + ' to throw an exception' }
|
||
|
|
, function(){ return 'expected ' + name + ' not to throw an exception' });
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Checks if the array is empty.
|
||
|
|
*
|
||
|
|
* @api public
|
||
|
|
*/
|
||
|
|
|
||
|
|
Assertion.prototype.empty = function () {
|
||
|
|
var expectation;
|
||
|
|
|
||
|
|
if ('object' == typeof this.obj && null !== this.obj && !isArray(this.obj)) {
|
||
|
|
if ('number' == typeof this.obj.length) {
|
||
|
|
expectation = !this.obj.length;
|
||
|
|
} else {
|
||
|
|
expectation = !keys(this.obj).length;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if ('string' != typeof this.obj) {
|
||
|
|
expect(this.obj).to.be.an('object');
|
||
|
|
}
|
||
|
|
|
||
|
|
expect(this.obj).to.have.property('length');
|
||
|
|
expectation = !this.obj.length;
|
||
|
|
}
|
||
|
|
|
||
|
|
this.assert(
|
||
|
|
expectation
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' to be empty' }
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' to not be empty' });
|
||
|
|
return this;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Checks if the obj exactly equals another.
|
||
|
|
*
|
||
|
|
* @api public
|
||
|
|
*/
|
||
|
|
|
||
|
|
Assertion.prototype.be =
|
||
|
|
Assertion.prototype.equal = function (obj) {
|
||
|
|
this.assert(
|
||
|
|
obj === this.obj
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' to equal ' + i(obj) }
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' to not equal ' + i(obj) });
|
||
|
|
return this;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Checks if the obj sortof equals another.
|
||
|
|
*
|
||
|
|
* @api public
|
||
|
|
*/
|
||
|
|
|
||
|
|
Assertion.prototype.eql = function (obj) {
|
||
|
|
this.assert(
|
||
|
|
expect.eql(obj, this.obj)
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' to sort of equal ' + i(obj) }
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' to sort of not equal ' + i(obj) });
|
||
|
|
return this;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Assert within start to finish (inclusive).
|
||
|
|
*
|
||
|
|
* @param {Number} start
|
||
|
|
* @param {Number} finish
|
||
|
|
* @api public
|
||
|
|
*/
|
||
|
|
|
||
|
|
Assertion.prototype.within = function (start, finish) {
|
||
|
|
var range = start + '..' + finish;
|
||
|
|
this.assert(
|
||
|
|
this.obj >= start && this.obj <= finish
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' to be within ' + range }
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' to not be within ' + range });
|
||
|
|
return this;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Assert typeof / instance of
|
||
|
|
*
|
||
|
|
* @api public
|
||
|
|
*/
|
||
|
|
|
||
|
|
Assertion.prototype.a =
|
||
|
|
Assertion.prototype.an = function (type) {
|
||
|
|
if ('string' == typeof type) {
|
||
|
|
// proper english in error msg
|
||
|
|
var n = /^[aeiou]/.test(type) ? 'n' : '';
|
||
|
|
|
||
|
|
// typeof with support for 'array'
|
||
|
|
this.assert(
|
||
|
|
'array' == type ? isArray(this.obj) :
|
||
|
|
'object' == type
|
||
|
|
? 'object' == typeof this.obj && null !== this.obj
|
||
|
|
: type == typeof this.obj
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' to be a' + n + ' ' + type }
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' not to be a' + n + ' ' + type });
|
||
|
|
} else {
|
||
|
|
// instanceof
|
||
|
|
var name = type.name || 'supplied constructor';
|
||
|
|
this.assert(
|
||
|
|
this.obj instanceof type
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' to be an instance of ' + name }
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' not to be an instance of ' + name });
|
||
|
|
}
|
||
|
|
|
||
|
|
return this;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Assert numeric value above _n_.
|
||
|
|
*
|
||
|
|
* @param {Number} n
|
||
|
|
* @api public
|
||
|
|
*/
|
||
|
|
|
||
|
|
Assertion.prototype.greaterThan =
|
||
|
|
Assertion.prototype.above = function (n) {
|
||
|
|
this.assert(
|
||
|
|
this.obj > n
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' to be above ' + n }
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' to be below ' + n });
|
||
|
|
return this;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Assert numeric value below _n_.
|
||
|
|
*
|
||
|
|
* @param {Number} n
|
||
|
|
* @api public
|
||
|
|
*/
|
||
|
|
|
||
|
|
Assertion.prototype.lessThan =
|
||
|
|
Assertion.prototype.below = function (n) {
|
||
|
|
this.assert(
|
||
|
|
this.obj < n
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' to be below ' + n }
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' to be above ' + n });
|
||
|
|
return this;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Assert string value matches _regexp_.
|
||
|
|
*
|
||
|
|
* @param {RegExp} regexp
|
||
|
|
* @api public
|
||
|
|
*/
|
||
|
|
|
||
|
|
Assertion.prototype.match = function (regexp) {
|
||
|
|
this.assert(
|
||
|
|
regexp.exec(this.obj)
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' to match ' + regexp }
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' not to match ' + regexp });
|
||
|
|
return this;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Assert property "length" exists and has value of _n_.
|
||
|
|
*
|
||
|
|
* @param {Number} n
|
||
|
|
* @api public
|
||
|
|
*/
|
||
|
|
|
||
|
|
Assertion.prototype.length = function (n) {
|
||
|
|
expect(this.obj).to.have.property('length');
|
||
|
|
var len = this.obj.length;
|
||
|
|
this.assert(
|
||
|
|
n == len
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' to have a length of ' + n + ' but got ' + len }
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' to not have a length of ' + len });
|
||
|
|
return this;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Assert property _name_ exists, with optional _val_.
|
||
|
|
*
|
||
|
|
* @param {String} name
|
||
|
|
* @param {Mixed} val
|
||
|
|
* @api public
|
||
|
|
*/
|
||
|
|
|
||
|
|
Assertion.prototype.property = function (name, val) {
|
||
|
|
if (this.flags.own) {
|
||
|
|
this.assert(
|
||
|
|
Object.prototype.hasOwnProperty.call(this.obj, name)
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' to have own property ' + i(name) }
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' to not have own property ' + i(name) });
|
||
|
|
return this;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (this.flags.not && undefined !== val) {
|
||
|
|
if (undefined === this.obj[name]) {
|
||
|
|
throw new Error(i(this.obj) + ' has no property ' + i(name));
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
var hasProp;
|
||
|
|
try {
|
||
|
|
hasProp = name in this.obj
|
||
|
|
} catch (e) {
|
||
|
|
hasProp = undefined !== this.obj[name]
|
||
|
|
}
|
||
|
|
|
||
|
|
this.assert(
|
||
|
|
hasProp
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' to have a property ' + i(name) }
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' to not have a property ' + i(name) });
|
||
|
|
}
|
||
|
|
|
||
|
|
if (undefined !== val) {
|
||
|
|
this.assert(
|
||
|
|
val === this.obj[name]
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' to have a property ' + i(name)
|
||
|
|
+ ' of ' + i(val) + ', but got ' + i(this.obj[name]) }
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' to not have a property ' + i(name)
|
||
|
|
+ ' of ' + i(val) });
|
||
|
|
}
|
||
|
|
|
||
|
|
this.obj = this.obj[name];
|
||
|
|
return this;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Assert that the array contains _obj_ or string contains _obj_.
|
||
|
|
*
|
||
|
|
* @param {Mixed} obj|string
|
||
|
|
* @api public
|
||
|
|
*/
|
||
|
|
|
||
|
|
Assertion.prototype.string =
|
||
|
|
Assertion.prototype.contain = function (obj) {
|
||
|
|
if ('string' == typeof this.obj) {
|
||
|
|
this.assert(
|
||
|
|
~this.obj.indexOf(obj)
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' to contain ' + i(obj) }
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' to not contain ' + i(obj) });
|
||
|
|
} else {
|
||
|
|
this.assert(
|
||
|
|
~indexOf(this.obj, obj)
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' to contain ' + i(obj) }
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' to not contain ' + i(obj) });
|
||
|
|
}
|
||
|
|
return this;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Assert exact keys or inclusion of keys by using
|
||
|
|
* the `.own` modifier.
|
||
|
|
*
|
||
|
|
* @param {Array|String ...} keys
|
||
|
|
* @api public
|
||
|
|
*/
|
||
|
|
|
||
|
|
Assertion.prototype.key =
|
||
|
|
Assertion.prototype.keys = function ($keys) {
|
||
|
|
var str
|
||
|
|
, ok = true;
|
||
|
|
|
||
|
|
$keys = isArray($keys)
|
||
|
|
? $keys
|
||
|
|
: Array.prototype.slice.call(arguments);
|
||
|
|
|
||
|
|
if (!$keys.length) throw new Error('keys required');
|
||
|
|
|
||
|
|
var actual = keys(this.obj)
|
||
|
|
, len = $keys.length;
|
||
|
|
|
||
|
|
// Inclusion
|
||
|
|
ok = every($keys, function (key) {
|
||
|
|
return ~indexOf(actual, key);
|
||
|
|
});
|
||
|
|
|
||
|
|
// Strict
|
||
|
|
if (!this.flags.not && this.flags.only) {
|
||
|
|
ok = ok && $keys.length == actual.length;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Key string
|
||
|
|
if (len > 1) {
|
||
|
|
$keys = map($keys, function (key) {
|
||
|
|
return i(key);
|
||
|
|
});
|
||
|
|
var last = $keys.pop();
|
||
|
|
str = $keys.join(', ') + ', and ' + last;
|
||
|
|
} else {
|
||
|
|
str = i($keys[0]);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Form
|
||
|
|
str = (len > 1 ? 'keys ' : 'key ') + str;
|
||
|
|
|
||
|
|
// Have / include
|
||
|
|
str = (!this.flags.only ? 'include ' : 'only have ') + str;
|
||
|
|
|
||
|
|
// Assertion
|
||
|
|
this.assert(
|
||
|
|
ok
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' to ' + str }
|
||
|
|
, function(){ return 'expected ' + i(this.obj) + ' to not ' + str });
|
||
|
|
|
||
|
|
return this;
|
||
|
|
};
|
||
|
|
/**
|
||
|
|
* Assert a failure.
|
||
|
|
*
|
||
|
|
* @param {String ...} custom message
|
||
|
|
* @api public
|
||
|
|
*/
|
||
|
|
Assertion.prototype.fail = function (msg) {
|
||
|
|
msg = msg || "explicit failure";
|
||
|
|
this.assert(false, msg, msg);
|
||
|
|
return this;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Function bind implementation.
|
||
|
|
*/
|
||
|
|
|
||
|
|
function bind (fn, scope) {
|
||
|
|
return function () {
|
||
|
|
return fn.apply(scope, arguments);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Array every compatibility
|
||
|
|
*
|
||
|
|
* @see bit.ly/5Fq1N2
|
||
|
|
* @api public
|
||
|
|
*/
|
||
|
|
|
||
|
|
function every (arr, fn, thisObj) {
|
||
|
|
var scope = thisObj || global;
|
||
|
|
for (var i = 0, j = arr.length; i < j; ++i) {
|
||
|
|
if (!fn.call(scope, arr[i], i, arr)) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return true;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Array indexOf compatibility.
|
||
|
|
*
|
||
|
|
* @see bit.ly/a5Dxa2
|
||
|
|
* @api public
|
||
|
|
*/
|
||
|
|
|
||
|
|
function indexOf (arr, o, i) {
|
||
|
|
if (Array.prototype.indexOf) {
|
||
|
|
return Array.prototype.indexOf.call(arr, o, i);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (arr.length === undefined) {
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
for (var j = arr.length, i = i < 0 ? i + j < 0 ? 0 : i + j : i || 0
|
||
|
|
; i < j && arr[i] !== o; i++);
|
||
|
|
|
||
|
|
return j <= i ? -1 : i;
|
||
|
|
};
|
||
|
|
|
||
|
|
// https://gist.github.com/1044128/
|
||
|
|
var getOuterHTML = function(element) {
|
||
|
|
if ('outerHTML' in element) return element.outerHTML;
|
||
|
|
var ns = "http://www.w3.org/1999/xhtml";
|
||
|
|
var container = document.createElementNS(ns, '_');
|
||
|
|
var elemProto = (window.HTMLElement || window.Element).prototype;
|
||
|
|
var xmlSerializer = new XMLSerializer();
|
||
|
|
var html;
|
||
|
|
if (document.xmlVersion) {
|
||
|
|
return xmlSerializer.serializeToString(element);
|
||
|
|
} else {
|
||
|
|
container.appendChild(element.cloneNode(false));
|
||
|
|
html = container.innerHTML.replace('><', '>' + element.innerHTML + '<');
|
||
|
|
container.innerHTML = '';
|
||
|
|
return html;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
// Returns true if object is a DOM element.
|
||
|
|
var isDOMElement = function (object) {
|
||
|
|
if (typeof HTMLElement === 'object') {
|
||
|
|
return object instanceof HTMLElement;
|
||
|
|
} else {
|
||
|
|
return object &&
|
||
|
|
typeof object === 'object' &&
|
||
|
|
object.nodeType === 1 &&
|
||
|
|
typeof object.nodeName === 'string';
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Inspects an object.
|
||
|
|
*
|
||
|
|
* @see taken from node.js `util` module (copyright Joyent, MIT license)
|
||
|
|
* @api private
|
||
|
|
*/
|
||
|
|
|
||
|
|
function i (obj, showHidden, depth) {
|
||
|
|
var seen = [];
|
||
|
|
|
||
|
|
function stylize (str) {
|
||
|
|
return str;
|
||
|
|
};
|
||
|
|
|
||
|
|
function format (value, recurseTimes) {
|
||
|
|
// Provide a hook for user-specified inspect functions.
|
||
|
|
// Check that value is an object with an inspect function on it
|
||
|
|
if (value && typeof value.inspect === 'function' &&
|
||
|
|
// Filter out the util module, it's inspect function is special
|
||
|
|
value !== exports &&
|
||
|
|
// Also filter out any prototype objects using the circular check.
|
||
|
|
!(value.constructor && value.constructor.prototype === value)) {
|
||
|
|
return value.inspect(recurseTimes);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Primitive types cannot have properties
|
||
|
|
switch (typeof value) {
|
||
|
|
case 'undefined':
|
||
|
|
return stylize('undefined', 'undefined');
|
||
|
|
|
||
|
|
case 'string':
|
||
|
|
var simple = '\'' + json.stringify(value).replace(/^"|"$/g, '')
|
||
|
|
.replace(/'/g, "\\'")
|
||
|
|
.replace(/\\"/g, '"') + '\'';
|
||
|
|
return stylize(simple, 'string');
|
||
|
|
|
||
|
|
case 'number':
|
||
|
|
return stylize('' + value, 'number');
|
||
|
|
|
||
|
|
case 'boolean':
|
||
|
|
return stylize('' + value, 'boolean');
|
||
|
|
}
|
||
|
|
// For some reason typeof null is "object", so special case here.
|
||
|
|
if (value === null) {
|
||
|
|
return stylize('null', 'null');
|
||
|
|
}
|
||
|
|
|
||
|
|
if (isDOMElement(value)) {
|
||
|
|
return getOuterHTML(value);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Look up the keys of the object.
|
||
|
|
var visible_keys = keys(value);
|
||
|
|
var $keys = showHidden ? Object.getOwnPropertyNames(value) : visible_keys;
|
||
|
|
|
||
|
|
// Functions without properties can be shortcutted.
|
||
|
|
if (typeof value === 'function' && $keys.length === 0) {
|
||
|
|
if (isRegExp(value)) {
|
||
|
|
return stylize('' + value, 'regexp');
|
||
|
|
} else {
|
||
|
|
var name = value.name ? ': ' + value.name : '';
|
||
|
|
return stylize('[Function' + name + ']', 'special');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Dates without properties can be shortcutted
|
||
|
|
if (isDate(value) && $keys.length === 0) {
|
||
|
|
return stylize(value.toUTCString(), 'date');
|
||
|
|
}
|
||
|
|
|
||
|
|
var base, type, braces;
|
||
|
|
// Determine the object type
|
||
|
|
if (isArray(value)) {
|
||
|
|
type = 'Array';
|
||
|
|
braces = ['[', ']'];
|
||
|
|
} else {
|
||
|
|
type = 'Object';
|
||
|
|
braces = ['{', '}'];
|
||
|
|
}
|
||
|
|
|
||
|
|
// Make functions say that they are functions
|
||
|
|
if (typeof value === 'function') {
|
||
|
|
var n = value.name ? ': ' + value.name : '';
|
||
|
|
base = (isRegExp(value)) ? ' ' + value : ' [Function' + n + ']';
|
||
|
|
} else {
|
||
|
|
base = '';
|
||
|
|
}
|
||
|
|
|
||
|
|
// Make dates with properties first say the date
|
||
|
|
if (isDate(value)) {
|
||
|
|
base = ' ' + value.toUTCString();
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($keys.length === 0) {
|
||
|
|
return braces[0] + base + braces[1];
|
||
|
|
}
|
||
|
|
|
||
|
|
if (recurseTimes < 0) {
|
||
|
|
if (isRegExp(value)) {
|
||
|
|
return stylize('' + value, 'regexp');
|
||
|
|
} else {
|
||
|
|
return stylize('[Object]', 'special');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
seen.push(value);
|
||
|
|
|
||
|
|
var output = map($keys, function (key) {
|
||
|
|
var name, str;
|
||
|
|
if (value.__lookupGetter__) {
|
||
|
|
if (value.__lookupGetter__(key)) {
|
||
|
|
if (value.__lookupSetter__(key)) {
|
||
|
|
str = stylize('[Getter/Setter]', 'special');
|
||
|
|
} else {
|
||
|
|
str = stylize('[Getter]', 'special');
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if (value.__lookupSetter__(key)) {
|
||
|
|
str = stylize('[Setter]', 'special');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (indexOf(visible_keys, key) < 0) {
|
||
|
|
name = '[' + key + ']';
|
||
|
|
}
|
||
|
|
if (!str) {
|
||
|
|
if (indexOf(seen, value[key]) < 0) {
|
||
|
|
if (recurseTimes === null) {
|
||
|
|
str = format(value[key]);
|
||
|
|
} else {
|
||
|
|
str = format(value[key], recurseTimes - 1);
|
||
|
|
}
|
||
|
|
if (str.indexOf('\n') > -1) {
|
||
|
|
if (isArray(value)) {
|
||
|
|
str = map(str.split('\n'), function (line) {
|
||
|
|
return ' ' + line;
|
||
|
|
}).join('\n').substr(2);
|
||
|
|
} else {
|
||
|
|
str = '\n' + map(str.split('\n'), function (line) {
|
||
|
|
return ' ' + line;
|
||
|
|
}).join('\n');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
str = stylize('[Circular]', 'special');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (typeof name === 'undefined') {
|
||
|
|
if (type === 'Array' && key.match(/^\d+$/)) {
|
||
|
|
return str;
|
||
|
|
}
|
||
|
|
name = json.stringify('' + key);
|
||
|
|
if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
|
||
|
|
name = name.substr(1, name.length - 2);
|
||
|
|
name = stylize(name, 'name');
|
||
|
|
} else {
|
||
|
|
name = name.replace(/'/g, "\\'")
|
||
|
|
.replace(/\\"/g, '"')
|
||
|
|
.replace(/(^"|"$)/g, "'");
|
||
|
|
name = stylize(name, 'string');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return name + ': ' + str;
|
||
|
|
});
|
||
|
|
|
||
|
|
seen.pop();
|
||
|
|
|
||
|
|
var numLinesEst = 0;
|
||
|
|
var length = reduce(output, function (prev, cur) {
|
||
|
|
numLinesEst++;
|
||
|
|
if (indexOf(cur, '\n') >= 0) numLinesEst++;
|
||
|
|
return prev + cur.length + 1;
|
||
|
|
}, 0);
|
||
|
|
|
||
|
|
if (length > 50) {
|
||
|
|
output = braces[0] +
|
||
|
|
(base === '' ? '' : base + '\n ') +
|
||
|
|
' ' +
|
||
|
|
output.join(',\n ') +
|
||
|
|
' ' +
|
||
|
|
braces[1];
|
||
|
|
|
||
|
|
} else {
|
||
|
|
output = braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
|
||
|
|
}
|
||
|
|
|
||
|
|
return output;
|
||
|
|
}
|
||
|
|
return format(obj, (typeof depth === 'undefined' ? 2 : depth));
|
||
|
|
};
|
||
|
|
|
||
|
|
function isArray (ar) {
|
||
|
|
return Object.prototype.toString.call(ar) == '[object Array]';
|
||
|
|
};
|
||
|
|
|
||
|
|
function isRegExp(re) {
|
||
|
|
var s = '' + re;
|
||
|
|
return re instanceof RegExp || // easy case
|
||
|
|
// duck-type for context-switching evalcx case
|
||
|
|
typeof(re) === 'function' &&
|
||
|
|
re.constructor.name === 'RegExp' &&
|
||
|
|
re.compile &&
|
||
|
|
re.test &&
|
||
|
|
re.exec &&
|
||
|
|
s.match(/^\/.*\/[gim]{0,3}$/);
|
||
|
|
};
|
||
|
|
|
||
|
|
function isDate(d) {
|
||
|
|
if (d instanceof Date) return true;
|
||
|
|
return false;
|
||
|
|
};
|
||
|
|
|
||
|
|
function keys (obj) {
|
||
|
|
if (Object.keys) {
|
||
|
|
return Object.keys(obj);
|
||
|
|
}
|
||
|
|
|
||
|
|
var keys = [];
|
||
|
|
|
||
|
|
for (var i in obj) {
|
||
|
|
if (Object.prototype.hasOwnProperty.call(obj, i)) {
|
||
|
|
keys.push(i);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return keys;
|
||
|
|
}
|
||
|
|
|
||
|
|
function map (arr, mapper, that) {
|
||
|
|
if (Array.prototype.map) {
|
||
|
|
return Array.prototype.map.call(arr, mapper, that);
|
||
|
|
}
|
||
|
|
|
||
|
|
var other= new Array(arr.length);
|
||
|
|
|
||
|
|
for (var i= 0, n = arr.length; i<n; i++)
|
||
|
|
if (i in arr)
|
||
|
|
other[i] = mapper.call(that, arr[i], i, arr);
|
||
|
|
|
||
|
|
return other;
|
||
|
|
};
|
||
|
|
|
||
|
|
function reduce (arr, fun) {
|
||
|
|
if (Array.prototype.reduce) {
|
||
|
|
return Array.prototype.reduce.apply(
|
||
|
|
arr
|
||
|
|
, Array.prototype.slice.call(arguments, 1)
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
var len = +this.length;
|
||
|
|
|
||
|
|
if (typeof fun !== "function")
|
||
|
|
throw new TypeError();
|
||
|
|
|
||
|
|
// no value to return if no initial value and an empty array
|
||
|
|
if (len === 0 && arguments.length === 1)
|
||
|
|
throw new TypeError();
|
||
|
|
|
||
|
|
var i = 0;
|
||
|
|
if (arguments.length >= 2) {
|
||
|
|
var rv = arguments[1];
|
||
|
|
} else {
|
||
|
|
do {
|
||
|
|
if (i in this) {
|
||
|
|
rv = this[i++];
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
// if array contains no values, no initial value to return
|
||
|
|
if (++i >= len)
|
||
|
|
throw new TypeError();
|
||
|
|
} while (true);
|
||
|
|
}
|
||
|
|
|
||
|
|
for (; i < len; i++) {
|
||
|
|
if (i in this)
|
||
|
|
rv = fun.call(null, rv, this[i], i, this);
|
||
|
|
}
|
||
|
|
|
||
|
|
return rv;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Asserts deep equality
|
||
|
|
*
|
||
|
|
* @see taken from node.js `assert` module (copyright Joyent, MIT license)
|
||
|
|
* @api private
|
||
|
|
*/
|
||
|
|
|
||
|
|
expect.eql = function eql (actual, expected) {
|
||
|
|
// 7.1. All identical values are equivalent, as determined by ===.
|
||
|
|
if (actual === expected) {
|
||
|
|
return true;
|
||
|
|
} else if ('undefined' != typeof Buffer
|
||
|
|
&& Buffer.isBuffer(actual) && Buffer.isBuffer(expected)) {
|
||
|
|
if (actual.length != expected.length) return false;
|
||
|
|
|
||
|
|
for (var i = 0; i < actual.length; i++) {
|
||
|
|
if (actual[i] !== expected[i]) return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
return true;
|
||
|
|
|
||
|
|
// 7.2. If the expected value is a Date object, the actual value is
|
||
|
|
// equivalent if it is also a Date object that refers to the same time.
|
||
|
|
} else if (actual instanceof Date && expected instanceof Date) {
|
||
|
|
return actual.getTime() === expected.getTime();
|
||
|
|
|
||
|
|
// 7.3. Other pairs that do not both pass typeof value == "object",
|
||
|
|
// equivalence is determined by ==.
|
||
|
|
} else if (typeof actual != 'object' && typeof expected != 'object') {
|
||
|
|
return actual == expected;
|
||
|
|
|
||
|
|
// 7.4. For all other Object pairs, including Array objects, equivalence is
|
||
|
|
// determined by having the same number of owned properties (as verified
|
||
|
|
// with Object.prototype.hasOwnProperty.call), the same set of keys
|
||
|
|
// (although not necessarily the same order), equivalent values for every
|
||
|
|
// corresponding key, and an identical "prototype" property. Note: this
|
||
|
|
// accounts for both named and indexed properties on Arrays.
|
||
|
|
} else {
|
||
|
|
return objEquiv(actual, expected);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function isUndefinedOrNull (value) {
|
||
|
|
return value === null || value === undefined;
|
||
|
|
}
|
||
|
|
|
||
|
|
function isArguments (object) {
|
||
|
|
return Object.prototype.toString.call(object) == '[object Arguments]';
|
||
|
|
}
|
||
|
|
|
||
|
|
function objEquiv (a, b) {
|
||
|
|
if (isUndefinedOrNull(a) || isUndefinedOrNull(b))
|
||
|
|
return false;
|
||
|
|
// an identical "prototype" property.
|
||
|
|
if (a.prototype !== b.prototype) return false;
|
||
|
|
//~~~I've managed to break Object.keys through screwy arguments passing.
|
||
|
|
// Converting to array solves the problem.
|
||
|
|
if (isArguments(a)) {
|
||
|
|
if (!isArguments(b)) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
a = pSlice.call(a);
|
||
|
|
b = pSlice.call(b);
|
||
|
|
return expect.eql(a, b);
|
||
|
|
}
|
||
|
|
try{
|
||
|
|
var ka = keys(a),
|
||
|
|
kb = keys(b),
|
||
|
|
key, i;
|
||
|
|
} catch (e) {//happens when one is a string literal and the other isn't
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
// having the same number of owned properties (keys incorporates hasOwnProperty)
|
||
|
|
if (ka.length != kb.length)
|
||
|
|
return false;
|
||
|
|
//the same set of keys (although not necessarily the same order),
|
||
|
|
ka.sort();
|
||
|
|
kb.sort();
|
||
|
|
//~~~cheap key test
|
||
|
|
for (i = ka.length - 1; i >= 0; i--) {
|
||
|
|
if (ka[i] != kb[i])
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
//equivalent values for every corresponding key, and
|
||
|
|
//~~~possibly expensive deep test
|
||
|
|
for (i = ka.length - 1; i >= 0; i--) {
|
||
|
|
key = ka[i];
|
||
|
|
if (!expect.eql(a[key], b[key]))
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
var json = (function () {
|
||
|
|
"use strict";
|
||
|
|
|
||
|
|
if ('object' == typeof JSON && JSON.parse && JSON.stringify) {
|
||
|
|
return {
|
||
|
|
parse: nativeJSON.parse
|
||
|
|
, stringify: nativeJSON.stringify
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
var JSON = {};
|
||
|
|
|
||
|
|
function f(n) {
|
||
|
|
// Format integers to have at least two digits.
|
||
|
|
return n < 10 ? '0' + n : n;
|
||
|
|
}
|
||
|
|
|
||
|
|
function date(d, key) {
|
||
|
|
return isFinite(d.valueOf()) ?
|
||
|
|
d.getUTCFullYear() + '-' +
|
||
|
|
f(d.getUTCMonth() + 1) + '-' +
|
||
|
|
f(d.getUTCDate()) + 'T' +
|
||
|
|
f(d.getUTCHours()) + ':' +
|
||
|
|
f(d.getUTCMinutes()) + ':' +
|
||
|
|
f(d.getUTCSeconds()) + 'Z' : null;
|
||
|
|
};
|
||
|
|
|
||
|
|
var cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
|
||
|
|
escapable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
|
||
|
|
gap,
|
||
|
|
indent,
|
||
|
|
meta = { // table of character substitutions
|
||
|
|
'\b': '\\b',
|
||
|
|
'\t': '\\t',
|
||
|
|
'\n': '\\n',
|
||
|
|
'\f': '\\f',
|
||
|
|
'\r': '\\r',
|
||
|
|
'"' : '\\"',
|
||
|
|
'\\': '\\\\'
|
||
|
|
},
|
||
|
|
rep;
|
||
|
|
|
||
|
|
|
||
|
|
function quote(string) {
|
||
|
|
|
||
|
|
// If the string contains no control characters, no quote characters, and no
|
||
|
|
// backslash characters, then we can safely slap some quotes around it.
|
||
|
|
// Otherwise we must also replace the offending characters with safe escape
|
||
|
|
// sequences.
|
||
|
|
|
||
|
|
escapable.lastIndex = 0;
|
||
|
|
return escapable.test(string) ? '"' + string.replace(escapable, function (a) {
|
||
|
|
var c = meta[a];
|
||
|
|
return typeof c === 'string' ? c :
|
||
|
|
'\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
|
||
|
|
}) + '"' : '"' + string + '"';
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function str(key, holder) {
|
||
|
|
|
||
|
|
// Produce a string from holder[key].
|
||
|
|
|
||
|
|
var i, // The loop counter.
|
||
|
|
k, // The member key.
|
||
|
|
v, // The member value.
|
||
|
|
length,
|
||
|
|
mind = gap,
|
||
|
|
partial,
|
||
|
|
value = holder[key];
|
||
|
|
|
||
|
|
// If the value has a toJSON method, call it to obtain a replacement value.
|
||
|
|
|
||
|
|
if (value instanceof Date) {
|
||
|
|
value = date(key);
|
||
|
|
}
|
||
|
|
|
||
|
|
// If we were called with a replacer function, then call the replacer to
|
||
|
|
// obtain a replacement value.
|
||
|
|
|
||
|
|
if (typeof rep === 'function') {
|
||
|
|
value = rep.call(holder, key, value);
|
||
|
|
}
|
||
|
|
|
||
|
|
// What happens next depends on the value's type.
|
||
|
|
|
||
|
|
switch (typeof value) {
|
||
|
|
case 'string':
|
||
|
|
return quote(value);
|
||
|
|
|
||
|
|
case 'number':
|
||
|
|
|
||
|
|
// JSON numbers must be finite. Encode non-finite numbers as null.
|
||
|
|
|
||
|
|
return isFinite(value) ? String(value) : 'null';
|
||
|
|
|
||
|
|
case 'boolean':
|
||
|
|
case 'null':
|
||
|
|
|
||
|
|
// If the value is a boolean or null, convert it to a string. Note:
|
||
|
|
// typeof null does not produce 'null'. The case is included here in
|
||
|
|
// the remote chance that this gets fixed someday.
|
||
|
|
|
||
|
|
return String(value);
|
||
|
|
|
||
|
|
// If the type is 'object', we might be dealing with an object or an array or
|
||
|
|
// null.
|
||
|
|
|
||
|
|
case 'object':
|
||
|
|
|
||
|
|
// Due to a specification blunder in ECMAScript, typeof null is 'object',
|
||
|
|
// so watch out for that case.
|
||
|
|
|
||
|
|
if (!value) {
|
||
|
|
return 'null';
|
||
|
|
}
|
||
|
|
|
||
|
|
// Make an array to hold the partial results of stringifying this object value.
|
||
|
|
|
||
|
|
gap += indent;
|
||
|
|
partial = [];
|
||
|
|
|
||
|
|
// Is the value an array?
|
||
|
|
|
||
|
|
if (Object.prototype.toString.apply(value) === '[object Array]') {
|
||
|
|
|
||
|
|
// The value is an array. Stringify every element. Use null as a placeholder
|
||
|
|
// for non-JSON values.
|
||
|
|
|
||
|
|
length = value.length;
|
||
|
|
for (i = 0; i < length; i += 1) {
|
||
|
|
partial[i] = str(i, value) || 'null';
|
||
|
|
}
|
||
|
|
|
||
|
|
// Join all of the elements together, separated with commas, and wrap them in
|
||
|
|
// brackets.
|
||
|
|
|
||
|
|
v = partial.length === 0 ? '[]' : gap ?
|
||
|
|
'[\n' + gap + partial.join(',\n' + gap) + '\n' + mind + ']' :
|
||
|
|
'[' + partial.join(',') + ']';
|
||
|
|
gap = mind;
|
||
|
|
return v;
|
||
|
|
}
|
||
|
|
|
||
|
|
// If the replacer is an array, use it to select the members to be stringified.
|
||
|
|
|
||
|
|
if (rep && typeof rep === 'object') {
|
||
|
|
length = rep.length;
|
||
|
|
for (i = 0; i < length; i += 1) {
|
||
|
|
if (typeof rep[i] === 'string') {
|
||
|
|
k = rep[i];
|
||
|
|
v = str(k, value);
|
||
|
|
if (v) {
|
||
|
|
partial.push(quote(k) + (gap ? ': ' : ':') + v);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
|
||
|
|
// Otherwise, iterate through all of the keys in the object.
|
||
|
|
|
||
|
|
for (k in value) {
|
||
|
|
if (Object.prototype.hasOwnProperty.call(value, k)) {
|
||
|
|
v = str(k, value);
|
||
|
|
if (v) {
|
||
|
|
partial.push(quote(k) + (gap ? ': ' : ':') + v);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Join all of the member texts together, separated with commas,
|
||
|
|
// and wrap them in braces.
|
||
|
|
|
||
|
|
v = partial.length === 0 ? '{}' : gap ?
|
||
|
|
'{\n' + gap + partial.join(',\n' + gap) + '\n' + mind + '}' :
|
||
|
|
'{' + partial.join(',') + '}';
|
||
|
|
gap = mind;
|
||
|
|
return v;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// If the JSON object does not yet have a stringify method, give it one.
|
||
|
|
|
||
|
|
JSON.stringify = function (value, replacer, space) {
|
||
|
|
|
||
|
|
// The stringify method takes a value and an optional replacer, and an optional
|
||
|
|
// space parameter, and returns a JSON text. The replacer can be a function
|
||
|
|
// that can replace values, or an array of strings that will select the keys.
|
||
|
|
// A default replacer method can be provided. Use of the space parameter can
|
||
|
|
// produce text that is more easily readable.
|
||
|
|
|
||
|
|
var i;
|
||
|
|
gap = '';
|
||
|
|
indent = '';
|
||
|
|
|
||
|
|
// If the space parameter is a number, make an indent string containing that
|
||
|
|
// many spaces.
|
||
|
|
|
||
|
|
if (typeof space === 'number') {
|
||
|
|
for (i = 0; i < space; i += 1) {
|
||
|
|
indent += ' ';
|
||
|
|
}
|
||
|
|
|
||
|
|
// If the space parameter is a string, it will be used as the indent string.
|
||
|
|
|
||
|
|
} else if (typeof space === 'string') {
|
||
|
|
indent = space;
|
||
|
|
}
|
||
|
|
|
||
|
|
// If there is a replacer, it must be a function or an array.
|
||
|
|
// Otherwise, throw an error.
|
||
|
|
|
||
|
|
rep = replacer;
|
||
|
|
if (replacer && typeof replacer !== 'function' &&
|
||
|
|
(typeof replacer !== 'object' ||
|
||
|
|
typeof replacer.length !== 'number')) {
|
||
|
|
throw new Error('JSON.stringify');
|
||
|
|
}
|
||
|
|
|
||
|
|
// Make a fake root object containing our value under the key of ''.
|
||
|
|
// Return the result of stringifying the value.
|
||
|
|
|
||
|
|
return str('', {'': value});
|
||
|
|
};
|
||
|
|
|
||
|
|
// If the JSON object does not yet have a parse method, give it one.
|
||
|
|
|
||
|
|
JSON.parse = function (text, reviver) {
|
||
|
|
// The parse method takes a text and an optional reviver function, and returns
|
||
|
|
// a JavaScript value if the text is a valid JSON text.
|
||
|
|
|
||
|
|
var j;
|
||
|
|
|
||
|
|
function walk(holder, key) {
|
||
|
|
|
||
|
|
// The walk method is used to recursively walk the resulting structure so
|
||
|
|
// that modifications can be made.
|
||
|
|
|
||
|
|
var k, v, value = holder[key];
|
||
|
|
if (value && typeof value === 'object') {
|
||
|
|
for (k in value) {
|
||
|
|
if (Object.prototype.hasOwnProperty.call(value, k)) {
|
||
|
|
v = walk(value, k);
|
||
|
|
if (v !== undefined) {
|
||
|
|
value[k] = v;
|
||
|
|
} else {
|
||
|
|
delete value[k];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return reviver.call(holder, key, value);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// Parsing happens in four stages. In the first stage, we replace certain
|
||
|
|
// Unicode characters with escape sequences. JavaScript handles many characters
|
||
|
|
// incorrectly, either silently deleting them, or treating them as line endings.
|
||
|
|
|
||
|
|
text = String(text);
|
||
|
|
cx.lastIndex = 0;
|
||
|
|
if (cx.test(text)) {
|
||
|
|
text = text.replace(cx, function (a) {
|
||
|
|
return '\\u' +
|
||
|
|
('0000' + a.charCodeAt(0).toString(16)).slice(-4);
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
// In the second stage, we run the text against regular expressions that look
|
||
|
|
// for non-JSON patterns. We are especially concerned with '()' and 'new'
|
||
|
|
// because they can cause invocation, and '=' because it can cause mutation.
|
||
|
|
// But just to be safe, we want to reject all unexpected forms.
|
||
|
|
|
||
|
|
// We split the second stage into 4 regexp operations in order to work around
|
||
|
|
// crippling inefficiencies in IE's and Safari's regexp engines. First we
|
||
|
|
// replace the JSON backslash pairs with '@' (a non-JSON character). Second, we
|
||
|
|
// replace all simple value tokens with ']' characters. Third, we delete all
|
||
|
|
// open brackets that follow a colon or comma or that begin the text. Finally,
|
||
|
|
// we look to see that the remaining characters are only whitespace or ']' or
|
||
|
|
// ',' or ':' or '{' or '}'. If that is so, then the text is safe for eval.
|
||
|
|
|
||
|
|
if (/^[\],:{}\s]*$/
|
||
|
|
.test(text.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@')
|
||
|
|
.replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']')
|
||
|
|
.replace(/(?:^|:|,)(?:\s*\[)+/g, ''))) {
|
||
|
|
|
||
|
|
// In the third stage we use the eval function to compile the text into a
|
||
|
|
// JavaScript structure. The '{' operator is subject to a syntactic ambiguity
|
||
|
|
// in JavaScript: it can begin a block or an object literal. We wrap the text
|
||
|
|
// in parens to eliminate the ambiguity.
|
||
|
|
|
||
|
|
j = eval('(' + text + ')');
|
||
|
|
|
||
|
|
// In the optional fourth stage, we recursively walk the new structure, passing
|
||
|
|
// each name/value pair to a reviver function for possible transformation.
|
||
|
|
|
||
|
|
return typeof reviver === 'function' ?
|
||
|
|
walk({'': j}, '') : j;
|
||
|
|
}
|
||
|
|
|
||
|
|
// If the text is not JSON parseable, then a SyntaxError is thrown.
|
||
|
|
|
||
|
|
throw new SyntaxError('JSON.parse');
|
||
|
|
};
|
||
|
|
|
||
|
|
return JSON;
|
||
|
|
})();
|
||
|
|
|
||
|
|
if ('undefined' != typeof window) {
|
||
|
|
window.expect = module.exports;
|
||
|
|
}
|
||
|
|
|
||
|
|
})(
|
||
|
|
this
|
||
|
|
, 'undefined' != typeof module ? module : {}
|
||
|
|
, 'undefined' != typeof exports ? exports : {}
|
||
|
|
);
|