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Optimize isPlainObject.

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Former-commit-id: 37754e27d03929927d8b8653bd7e44ad3ce2b23c
This commit is contained in:
John-David Dalton
2012-08-29 00:05:02 -07:00
parent 2ad9bbae25
commit 4585acf70b
3 changed files with 72 additions and 48 deletions
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21
build.js
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@@ -435,7 +435,7 @@
* @returns {String} Returns the `isArguments` fallback snippet.
*/
function getIsArgumentsFallback(source) {
return (source.match(/(?:\s*\/\/.*)*\s*if *\(noArgsClass[\s\S]+?};\s*}/) || [''])[0];
return (source.match(/(?:\s*\/\/.*)*\n( +)if *\(noArgsClass[\s\S]+?};\n\1}/) || [''])[0];
}
/**
@@ -563,7 +563,18 @@
* @returns {String} Returns the source with the `isFunction` fallback removed.
*/
function removeIsFunctionFallback(source) {
return source.replace(/(?:\s*\/\/.*)*\s*if *\(isFunction\(\/x\/[\s\S]+?};\s*}/, '');
return source.replace(/(?:\s*\/\/.*)*\n( +)if *\(isFunction\(\/x\/[\s\S]+?};\n\1}/, '');
}
/**
* Removes the `isPlainObject` fallback from `source`.
*
* @private
* @param {String} source The source to process.
* @returns {String} Returns the source with the `isPlainObject` fallback removed.
*/
function removeIsPlainObjectFallback(source) {
return source.replace(/(?:\s*\/\/.*)*\n( +)if *\(!isPlainObject[\s\S]+?};\n\1}/, '');
}
/**
@@ -984,6 +995,11 @@
return match.replace(/\bcallee\b/g, 'merge');
});
if (!isUnderscore) {
source = removeIsArgumentsFallback(source);
source = removeIsPlainObjectFallback(source);
}
// remove `hasDontEnumBug`, `hasObjectSpliceBug`, `iteratesOwnLast`, `noArgsEnum` assignment
source = source.replace(/(?:\n +\/\*[^*]*\*+(?:[^\/][^*]*\*+)*\/)?\n *var hasDontEnumBug\b[\s\S]+?}\(1\)\);\n/, '');
@@ -1006,7 +1022,6 @@
source = removeVar(source, 'iteratorTemplate');
source = removeVar(source, 'noArraySliceOnStrings');
source = removeVar(source, 'noCharByIndex');
source = removeIsArgumentsFallback(source);
source = removeKeysOptimization(source);
source = removeNoArgsClass(source);
source = removeNoNodeClass(source);