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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 args2multislice = require( '@stdlib/slice/base/args2multislice' );
var normalizeMultiSlice = require( '@stdlib/slice/base/normalize-multi-slice' );
var getShape = require( '@stdlib/ndarray/shape' );
var filled = require( '@stdlib/array/filled' );
var join = require( '@stdlib/array/base/join' );
var format = require( '@stdlib/string/format' );
// MAIN //
/**
* Returns normalized slice regions for a list of slices along a specified dimension.
*
* @private
* @param {ndarray} x - input array
* @param {Array<(Slice|integer|null|void)>} sliceList - list of slices
* @param {integer} dim - dimension along which to normalize slices
* @throws {RangeError} slice exceeds array bounds
* @returns {Array<Slice>} array of normalized slices
*/
function normalizeSlices( x, sliceList, dim ) {
var sh;
var ms;
var S;
sh = getShape( x );
// Create a "shape" for the express purpose of validating each of the slice arguments:
sh = filled( sh[ dim ], sliceList.length, 'generic' );
// Create an un-normalized multislice:
ms = args2multislice( sliceList );
// Normalize the multislice:
S = normalizeMultiSlice( ms, sh, true );
if ( S.code ) {
throw new RangeError( format( 'invalid argument. Slice exceeds array bounds. Array shape: (%s).', join( sh, ',' ) ) );
}
return S.data;
}
// EXPORTS //
module.exports = normalizeSlices;
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