define(['./baseIsMatch', '../utility/constant', './isStrictComparable', '../object/keys', './toObject'], function(baseIsMatch, constant, isStrictComparable, keys, toObject) { /** Used as a safe reference for `undefined` in pre-ES5 environments. */ var undefined; /** * The base implementation of `_.matches` which does not clone `source`. * * @private * @param {Object} source The object of property values to match. * @returns {Function} Returns the new function. */ function baseMatches(source) { var props = keys(source), length = props.length; if (!length) { return constant(true); } if (length == 1) { var key = props[0], value = source[key]; if (isStrictComparable(value)) { return function(object) { if (object == null) { return false; } return object[key] === value && (value !== undefined || (key in toObject(object))); }; } } var values = Array(length), strictCompareFlags = Array(length); while (length--) { value = source[props[length]]; values[length] = value; strictCompareFlags[length] = isStrictComparable(value); } return function(object) { return object != null && baseIsMatch(toObject(object), props, values, strictCompareFlags); }; } return baseMatches; });