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* @license Apache-2.0
*
* Copyright (c) 2026 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 isIntegerArray = require( '@stdlib/assert/is-integer-array' ).primitives;
var isndarrayLike = require( '@stdlib/assert/is-ndarray-like' );
var ndarraylike2ndarray = require( '@stdlib/ndarray/base/ndarraylike2ndarray' );
var reverseDimensions = require( '@stdlib/ndarray/base/reverse-dimensions' );
var emptyLike = require( '@stdlib/ndarray/empty-like' );
var assign = require( '@stdlib/ndarray/base/assign' );
var format = require( '@stdlib/string/format' );
// MAIN //
/**
* Returns a new ndarray where the order of elements of an input ndarray along specified dimensions is reversed.
*
* @param {ndarray} x - input array
* @param {IntegerArray} dims - indices of dimensions to reverse
* @throws {TypeError} first argument must be an ndarray having one or more dimensions
* @throws {TypeError} second argument must be an array of integers
* @throws {RangeError} dimension index exceeds the number of dimensions
* @throws {Error} must provide unique dimension indices
* @returns {ndarray} output array
*
* @example
* var array = require( '@stdlib/ndarray/array' );
*
* var x = array( [ [ 1.0, 2.0 ], [ 3.0, 4.0 ], [ 5.0, 6.0 ] ] );
* // returns <ndarray>[ [ 1.0, 2.0 ], [ 3.0, 4.0 ], [ 5.0, 6.0 ] ]
*
* var y = toReversedDimensions( x, [ 0, 1 ] );
* // returns <ndarray>[ [ 6.0, 5.0 ], [ 4.0, 3.0 ], [ 2.0, 1.0 ] ]
*/
function toReversedDimensions( x, dims ) {
var out;
var bv;
if ( !isndarrayLike( x ) ) {
throw new TypeError( format( 'invalid argument. First argument must be an ndarray. Value: `%s`.', x ) );
}
if ( !isIntegerArray( dims ) ) {
throw new TypeError( format( 'invalid argument. Second argument must be an array of integers. Value: `%s`.', dims ) );
}
bv = ndarraylike2ndarray( x );
bv = reverseDimensions( bv, dims, false );
out = emptyLike( bv );
assign( [ bv, out ] );
return out;
}
// EXPORTS //
module.exports = toReversedDimensions;
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