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import Stack from './_Stack.js'; | |
import baseIsEqual from './_baseIsEqual.js'; | |
/** Used to compose bitmasks for value comparisons. */ | |
var COMPARE_PARTIAL_FLAG = 1, | |
COMPARE_UNORDERED_FLAG = 2; | |
/** | |
* The base implementation of `_.isMatch` without support for iteratee shorthands. | |
* | |
* @private | |
* @param {Object} object The object to inspect. | |
* @param {Object} source The object of property values to match. | |
* @param {Array} matchData The property names, values, and compare flags to match. | |
* @param {Function} [customizer] The function to customize comparisons. | |
* @returns {boolean} Returns `true` if `object` is a match, else `false`. | |
*/ | |
function baseIsMatch(object, source, matchData, customizer) { | |
var index = matchData.length, | |
length = index, | |
noCustomizer = !customizer; | |
if (object == null) { | |
return !length; | |
} | |
object = Object(object); | |
while (index--) { | |
var data = matchData[index]; | |
if ((noCustomizer && data[2]) | |
? data[1] !== object[data[0]] | |
: !(data[0] in object) | |
) { | |
return false; | |
} | |
} | |
while (++index < length) { | |
data = matchData[index]; | |
var key = data[0], | |
objValue = object[key], | |
srcValue = data[1]; | |
if (noCustomizer && data[2]) { | |
if (objValue === undefined && !(key in object)) { | |
return false; | |
} | |
} else { | |
var stack = new Stack; | |
if (customizer) { | |
var result = customizer(objValue, srcValue, key, object, source, stack); | |
} | |
if (!(result === undefined | |
? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack) | |
: result | |
)) { | |
return false; | |
} | |
} | |
} | |
return true; | |
} | |
export default baseIsMatch; | |