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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 nulls = require( '@stdlib/array/base/nulls' );
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 args;
var out;
var sh;
var ms;
var i;
var S;
sh = getShape( x );
out = [];
for ( i = 0; i < sliceList.length; i++ ) {
args = nulls( sh.length );
args[ dim ] = sliceList[ i ];
ms = args2multislice( args );
S = normalizeMultiSlice( ms, sh, true );
if ( S.code ) {
throw new RangeError( format( 'invalid argument. Slice exceeds array bounds. Array shape: (%s).', join( sh, ',' ) ) );
}
out.push( S.data[ dim ] );
}
return out;
}
// EXPORTS //
module.exports = normalizeSlices;
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