76 lines
2.1 KiB
JavaScript
76 lines
2.1 KiB
JavaScript
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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2018 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/* eslint-disable no-invalid-this */
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'use strict';
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// MODULES //
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var isInteger = require( '@stdlib/assert/is-integer' ).isPrimitive;
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var getIndex = require( './../../base/ind' );
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// MAIN //
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/**
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* Sets an array element.
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*
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* ## Notes
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*
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* - The number of indices should **equal** the number of dimensions. Accordingly, for zero-dimensional arrays, no indices should be provided.
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*
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* @private
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* @param {...integer} [idx] - indices
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* @param {*} v - value to set
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* @throws {TypeError} provided indices must be integer valued
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* @throws {RangeError} index exceeds array dimensions
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* @throws {RangeError} number of indices must equal the number of dimensions
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* @returns {ndarray} ndarray instance
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*/
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function set() {
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var idx;
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var ind;
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var M;
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var i;
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if ( arguments.length !== this._ndims+1 ) {
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throw new RangeError( 'invalid arguments. Number of indices must match the number of dimensions. ndims: '+this._ndims+'. nargs: '+arguments.length+'.' );
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}
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idx = this._offset;
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M = this._submode.length;
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for ( i = 0; i < arguments.length-1; i++ ) {
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if ( !isInteger( arguments[ i ] ) ) {
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throw new TypeError( 'invalid argument. Indices must be integer valued. Argument: '+i+'. Value: `'+arguments[ i ]+'`.' );
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}
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ind = getIndex( arguments[ i ], this._shape[ i ]-1, this._submode[ i%M ] ); // eslint-disable-line max-len
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idx += this._strides[ i ] * ind;
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}
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if ( this._accessors ) {
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this._buffer.set( arguments[ i ], idx );
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} else {
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this._buffer[ idx ] = arguments[ i ];
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}
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return this;
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}
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// EXPORTS //
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module.exports = set;
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