/**
* @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 hasOwnProp = require( '@stdlib/assert/has-own-property' );
var toStringTag = require( './tostringtag.js' );
var toStr = require( './tostring.js' );


// MAIN //

/**
* Returns a string value indicating a specification defined classification of an object in environments supporting `Symbol.toStringTag`.
*
* @param {*} v - input value
* @returns {string} string value indicating a specification defined classification of the input value
*
* @example
* var str = nativeClass( 'a' );
* // returns '[object String]'
*
* @example
* var str = nativeClass( 5 );
* // returns '[object Number]'
*
* @example
* function Beep() {
*     return this;
* }
* var str = nativeClass( new Beep() );
* // returns '[object Object]'
*/
function nativeClass( v ) {
	var isOwn;
	var tag;
	var out;

	if ( v === null || v === void 0 ) {
		return toStr.call( v );
	}
	tag = v[ toStringTag ];
	isOwn = hasOwnProp( v, toStringTag );

	// Attempt to override the `toStringTag` property. For built-ins having a `Symbol.toStringTag` property (e.g., `JSON`, `Math`, etc), the `Symbol.toStringTag` property is read-only (e.g., , so we need to wrap in a `try/catch`.
	try {
		v[ toStringTag ] = void 0;
	} catch ( err ) { // eslint-disable-line no-unused-vars
		return toStr.call( v );
	}
	out = toStr.call( v );

	if ( isOwn ) {
		v[ toStringTag ] = tag;
	} else {
		delete v[ toStringTag ];
	}
	return out;
}


// EXPORTS //

module.exports = nativeClass;
