56 lines
1.4 KiB
JavaScript
56 lines
1.4 KiB
JavaScript
/**
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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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'use strict';
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// MODULES //
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var isBuffer = require( '@stdlib/assert/is-buffer' );
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var Buffer = require( './../../ctor' );
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// MAIN //
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/**
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* Copies buffer data to a new `Buffer` instance.
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*
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* @param {Buffer} buffer - buffer from which to copy
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* @throws {TypeError} must provide a `Buffer` instance
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* @returns {Buffer} new `Buffer` instance
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*
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* @example
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* var fromArray = require( '@stdlib/buffer/from-array' );
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*
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* var b1 = fromArray( [ 1, 2, 3, 4 ] );
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* // returns <Buffer>
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*
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* var b2 = fromBuffer( b1 );
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* // returns <Buffer>
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*/
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function fromBuffer( buffer ) {
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if ( !isBuffer( buffer ) ) {
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throw new TypeError( 'invalid argument. Must provide a Buffer. Value: `' + buffer + '`' );
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}
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return new Buffer( buffer ); // eslint-disable-line no-buffer-constructor
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}
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// EXPORTS //
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module.exports = fromBuffer;
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