All files / nullary/lib main.js

81.81% Statements 63/77
100% Branches 1/1
0% Functions 0/1
81.81% Lines 63/77

Press n or j to go to the next uncovered block, b, p or k for the previous block.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 781x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x                             1x 1x 1x 1x 1x  
/**
* @license Apache-2.0
*
* Copyright (c) 2022 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 isAccessorArray = require( '@stdlib/array/base/assert/is-accessor-array' );
var accessorSetter = require( '@stdlib/array/base/accessor-setter' );
var setter = require( '@stdlib/array/base/setter' );
var dtype = require( '@stdlib/array/dtype' );
var strided = require( './nullary.js' );
var accessors = require( './accessors.js' );
 
 
// MAIN //
 
/**
* Applies a nullary callback and assigns results to elements in a strided output array.
*
* @param {ArrayLikeObject<Collection>} arrays - array-like object containing one output array
* @param {NonNegativeIntegerArray} shape - array-like object containing a single element, the number of indexed elements
* @param {IntegerArray} strides - array-like object containing the stride length for the output array
* @param {Callback} fcn - nullary callback
* @returns {void}
*
* @example
* var Float64Array = require( '@stdlib/array/float64' );
*
* function fill() {
*     return 3.0;
* }
*
* var x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0 ] );
*
* var shape = [ x.length ];
* var strides = [ 1 ];
*
* nullary( [ x ], shape, strides, fill );
*
* console.log( x );
* // => <Float64Array>[ 3.0, 3.0, 3.0, 3.0, 3.0 ]
*/
function nullary( arrays, shape, strides, fcn ) {
	var xset;
	var x;

	x = arrays[ 0 ];
	if ( isAccessorArray( x ) ) {
		xset = accessorSetter( dtype( x ) );
	}
	if ( xset ) {
		xset = xset || setter( dtype( x ) );
		return accessors( arrays, shape, strides, [ xset ], fcn );
	}
	return strided( arrays, shape, strides, fcn );
}
 
 
// EXPORTS //
 
module.exports = nullary;