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feat: add blas/base/matrix-triangle-resolve-enum
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PR-URL: #2497
Co-authored-by: Athan Reines <[email protected]>
Reviewed-by: Athan Reines <[email protected]>
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Pranavchiku and kgryte authored Jul 4, 2024
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<!--
@license Apache-2.0
Copyright (c) 2024 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.
-->

# resolve

> Return the enumeration constant associated with a supported BLAS matrix triangle value.
<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->

<section class="intro">

</section>

<!-- /.intro -->

<!-- Package usage documentation. -->

<section class="usage">

## Usage

```javascript
var resolve = require( '@stdlib/blas/base/matrix-triangle-resolve-enum' );
```

#### resolve( value )

Returns the enumeration constant associated with a BLAS matrix triangle value.

```javascript
var str2enum = require( '@stdlib/blas/base/matrix-triangle-str2enum' );

var v = resolve( 'lower' );
// returns <number>

v = resolve( str2enum( 'lower' ) );
// returns <number>
```

If unable to resolve an enumeration constant, the function returns `null`.

```javascript
var v = resolve( 'beep' );
// returns null
```

</section>

<!-- /.usage -->

<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->

<section class="notes">

## Notes

- Downstream consumers of this function should **not** rely on specific integer values (e.g., `UPPER == 0`). Instead, the function should be used in an opaque manner.

</section>

<!-- /.notes -->

<!-- Package usage examples. -->

<section class="examples">

## Examples

<!-- eslint no-undef: "error" -->

```javascript
var resolve = require( '@stdlib/blas/base/matrix-triangle-resolve-enum' );

var v = resolve( 'lower' );
// returns <number>

v = resolve( 'upper' );
// returns <number>
```

</section>

<!-- /.examples -->

<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->

<section class="references">

</section>

<!-- /.references -->

<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->

<section class="related">

</section>

<!-- /.related -->

<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->

<section class="links">

</section>

<!-- /.links -->
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/**
* @license Apache-2.0
*
* Copyright (c) 2024 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 bench = require( '@stdlib/bench' );
var isInteger = require( '@stdlib/assert/is-integer' ).isPrimitive;
var str2enum = require( '@stdlib/blas/base/matrix-triangle-str2enum' );
var pkg = require( './../package.json' ).name;
var resolve = require( './../lib' );


// MAIN //

bench( pkg+'::string', function benchmark( b ) {
var values;
var out;
var i;

values = [
'lower',
'upper'
];

b.tic();
for ( i = 0; i < b.iterations; i++ ) {
out = resolve( values[ i%values.length ] );
if ( typeof out !== 'number' ) {
b.fail( 'should return a number' );
}
}
b.toc();
if ( !isInteger( out ) ) {
b.fail( 'should return an integer' );
}
b.pass( 'benchmark finished' );
b.end();
});

bench( pkg+'::integer', function benchmark( b ) {
var values;
var out;
var i;

values = [
str2enum( 'lower' ),
str2enum( 'upper' )
];

b.tic();
for ( i = 0; i < b.iterations; i++ ) {
out = resolve( values[ i%values.length ] );
if ( typeof out !== 'number' ) {
b.fail( 'should return a number' );
}
}
b.toc();
if ( !isInteger( out ) ) {
b.fail( 'should return an integer' );
}
b.pass( 'benchmark finished' );
b.end();
});
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{{alias}}( value )
Returns the enumeration constant associated with a supported BLAS matrix
triangle value.

Downstream consumers of this function should *not* rely on specific integer
values (e.g., `UPPER == 0`). Instead, the function should be used in an
opaque manner.

Parameters
----------
value: any
Matrix triangle value.

Returns
-------
out: integer|null
Enumeration constant.

Examples
--------
> var out = {{alias}}( 'lower' )
<number>
> out = {{alias}}( {{alias:@stdlib/blas/base/matrix-triangle-str2enum}}( 'lower' ) )
<number>

See Also
--------
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/*
* @license Apache-2.0
*
* Copyright (c) 2024 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.
*/

// TypeScript Version: 4.1

/**
* Returns the enumeration constant associated with a BLAS matrix triangle value.
*
* ## Notes
*
* - Downstream consumers of this function should **not** rely on specific integer values (e.g., `UPPER == 0`). Instead, the function should be used in an opaque manner.
*
* @param value - matrix triangle value
* @returns enumeration constant
*
* @example
* var v = resolve( 'lower' );
* // returns <number>
*/
declare function resolve( value: any ): number | null;

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// EXPORTS //

export = resolve;
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/*
* @license Apache-2.0
*
* Copyright (c) 2024 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.
*/

import resolve = require( './index' );


// TESTS //

// The function returns a number or null...
{
resolve( 0 ); // $ExpectType number | null
resolve( 'lower' ); // $ExpectType number | null
}
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/**
* @license Apache-2.0
*
* Copyright (c) 2024 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';

var resolve = require( './../lib' );

var v = resolve( 'lower' );
console.log( v );
// => <number>

v = resolve( 'upper' );
console.log( v );
// => <number>
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/**
* @license Apache-2.0
*
* Copyright (c) 2024 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';

/**
* Return the enumeration constant associated with a supported BLAS matrix triangle value.
*
* @module @stdlib/blas/base/matrix-triangle-resolve-enum
*
* @example
* var resolve = require( '@stdlib/blas/base/matrix-triangle-resolve-enum' );
*
* var v = resolve( 'lower' );
* // returns <number>
*/

// MODULES //

var main = require( './main.js' );


// EXPORTS //

module.exports = main;
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Coverage Report

Package Statements Branches Functions Lines
blas/base/matrix-triangle-resolve-enum $\color{green}97/97$
$\color{green}+100.00\%$
$\color{green}9/9$
$\color{green}+100.00\%$
$\color{green}1/1$
$\color{green}+100.00\%$
$\color{green}97/97$
$\color{green}+100.00\%$

The above coverage report was generated for the changes in this push.

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