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Add isHostType to perf.js.

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Former-commit-id: 36a1818a5272966ac9bd7f2394f2bd466fe6a4d4
This commit is contained in:
John-David Dalton
2013-03-11 00:33:56 -07:00
parent 3d1330c85d
commit 0b97b3864f
3 changed files with 67 additions and 31 deletions
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13
vendor/benchmark.js/benchmark.js vendored
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@@ -30,6 +30,9 @@
/** Used to assign each benchmark an incrimented id */
var counter = 0;
/** Used to detect primitive types */
var rePrimitive = /^(?:boolean|number|string|undefined)$/;
/** Used to assign default `context` object properties */
var contextProps = [
'Array', 'Date', 'Function', 'Math', 'Object', 'RegExp', 'String', '_',
@@ -613,7 +616,7 @@
/**
* Host objects can return type values that are different from their actual
* data type. The objects we are concerned with usually return non-primitive
* types of object, function, or unknown.
* types of "object", "function", or "unknown".
*
* @private
* @param {Mixed} object The owner of the property.
@@ -621,9 +624,11 @@
* @returns {Boolean} Returns `true` if the property value is a non-primitive, else `false`.
*/
function isHostType(object, property) {
var type = object != null ? typeof object[property] : 'number';
return !/^(?:boolean|number|string|undefined)$/.test(type) &&
(type == 'object' ? !!object[property] : true);
if (object == null) {
return false;
}
var type = typeof object[property];
return !rePrimitive.test(type) && (type != 'object' || !!object[property]);
}
/**