/**
* @license Apache-2.0
*
* Copyright (c) 2018 The Stdlib Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*    http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

'use strict';

// MODULES //

var hasToStringTag = require( './../../has-tostringtag-support' );
var nativeClass = require( '@stdlib/utils/native-class' );
var test = require( './try2exec.js' );


// VARIABLES //

var FLG = hasToStringTag();


// MAIN //

/**
* Tests if a value is a regular expression.
*
* @param {*} value - value to test
* @returns {boolean} boolean indicating whether value is a regular expression
*
* @example
* var bool = isRegExp( /\.+/ );
* // returns true
*
* @example
* var bool = isRegExp( {} );
* // returns false
*/
function isRegExp( value ) {
	if ( typeof value === 'object' ) {
		if ( value instanceof RegExp ) {
			return true;
		}
		if ( FLG ) {
			return test( value );
		}
		return ( nativeClass( value ) === '[object RegExp]' );
	}
	return false;
}


// EXPORTS //

module.exports = isRegExp;