63 lines
1.8 KiB
JavaScript
63 lines
1.8 KiB
JavaScript
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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2020 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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'use strict';
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// MODULES //
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var isTypedArrayLike = require( '@stdlib/assert/is-typed-array-like' );
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var serialize = require( '@stdlib/ndarray/base/serialize-meta-data' );
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var copy = require( '@stdlib/utils/copy' );
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var addon = require( './../src/addon.node' );
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var TABLE = require( './table.js' );
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// VARIABLES //
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var table = copy( TABLE, 1 );
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var js = table.ndarray;
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table.ndarray = unary;
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// FUNCTIONS //
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/**
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* Applies a unary function to an input ndarray and assigns results to an output ndarray.
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*
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* @private
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* @param {ndarray} x - input array
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* @param {ndarray} y - output array
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* @returns {ndarray} output array
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*/
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function unary( x, y ) {
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var xdata = x.data;
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var ydata = y.data;
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// WARNING: we assume that, if we're provided something which has a data buffer resembling a typed array, we're provided a typed ndarray buffer; however, this can lead to potential unintended errors as the native add-on cannot work with non-typed array objects (e.g., generic arrays)...
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if ( !( isTypedArrayLike( xdata ) && isTypedArrayLike( ydata ) ) ) {
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return js( x, y );
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}
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addon( xdata, serialize( x ), ydata, serialize( y ) );
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return y;
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}
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// EXPORTS //
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module.exports = table;
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