| var Stack = require('./_Stack'), |
| baseIsEqual = require('./_baseIsEqual'); |
| |
| /** 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; |
| } |
| |
| module.exports = baseIsMatch; |