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