time-to-botec

Benchmark sampling in different programming languages
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_baseIsMatch.js (1765B)

      1 var Stack = require('./_Stack'),
      2     baseIsEqual = require('./_baseIsEqual');
      3 
      4 /** Used to compose bitmasks for value comparisons. */
      5 var COMPARE_PARTIAL_FLAG = 1,
      6     COMPARE_UNORDERED_FLAG = 2;
      7 
      8 /**
      9  * The base implementation of `_.isMatch` without support for iteratee shorthands.
     10  *
     11  * @private
     12  * @param {Object} object The object to inspect.
     13  * @param {Object} source The object of property values to match.
     14  * @param {Array} matchData The property names, values, and compare flags to match.
     15  * @param {Function} [customizer] The function to customize comparisons.
     16  * @returns {boolean} Returns `true` if `object` is a match, else `false`.
     17  */
     18 function baseIsMatch(object, source, matchData, customizer) {
     19   var index = matchData.length,
     20       length = index,
     21       noCustomizer = !customizer;
     22 
     23   if (object == null) {
     24     return !length;
     25   }
     26   object = Object(object);
     27   while (index--) {
     28     var data = matchData[index];
     29     if ((noCustomizer && data[2])
     30           ? data[1] !== object[data[0]]
     31           : !(data[0] in object)
     32         ) {
     33       return false;
     34     }
     35   }
     36   while (++index < length) {
     37     data = matchData[index];
     38     var key = data[0],
     39         objValue = object[key],
     40         srcValue = data[1];
     41 
     42     if (noCustomizer && data[2]) {
     43       if (objValue === undefined && !(key in object)) {
     44         return false;
     45       }
     46     } else {
     47       var stack = new Stack;
     48       if (customizer) {
     49         var result = customizer(objValue, srcValue, key, object, source, stack);
     50       }
     51       if (!(result === undefined
     52             ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack)
     53             : result
     54           )) {
     55         return false;
     56       }
     57     }
     58   }
     59   return true;
     60 }
     61 
     62 module.exports = baseIsMatch;