internal/baseIsMatch.js

import baseIsEqual from './baseIsEqual';

/** Used for native method references. */
var objectProto = Object.prototype;

/** Used to check objects for own properties. */
var hasOwnProperty = objectProto.hasOwnProperty;

/**
 * The base implementation of `_.isMatch` without support for callback
 * shorthands or `this` binding.
 *
 * @private
 * @param {Object} source The object to inspect.
 * @param {Array} props The source property names to match.
 * @param {Array} values The source values to match.
 * @param {Array} strictCompareFlags Strict comparison flags for source values.
 * @param {Function} [customizer] The function to customize comparing objects.
 * @returns {boolean} Returns `true` if `object` is a match, else `false`.
 */
function baseIsMatch(object, props, values, strictCompareFlags, customizer) {
  var length = props.length;
  if (object == null) {
    return !length;
  }
  var index = -1,
      noCustomizer = !customizer;

  while (++index < length) {
    if ((noCustomizer && strictCompareFlags[index])
          ? values[index] !== object[props[index]]
          : !hasOwnProperty.call(object, props[index])
        ) {
      return false;
    }
  }
  index = -1;
  while (++index < length) {
    var key = props[index];
    if (noCustomizer && strictCompareFlags[index]) {
      var result = hasOwnProperty.call(object, key);
    } else {
      var objValue = object[key],
          srcValue = values[index];

      result = customizer ? customizer(objValue, srcValue, key) : undefined;
      if (typeof result == 'undefined') {
        result = baseIsEqual(srcValue, objValue, customizer, true);
      }
    }
    if (!result) {
      return false;
    }
  }
  return true;
}

export default baseIsMatch;