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Callbacks

Assign callbacks to binary interfaces according to type promotion rules.

Usage

import callbacks from 'https://cdn.jsdelivr.net/gh/stdlib-js/strided-base-binary-signature-callbacks@deno/mod.js';

callbacks( table, signatures )

Assigns callbacks to binary interfaces according to type promotion rules.

import signatures from 'https://cdn.jsdelivr.net/gh/stdlib-js/strided-base-binary-dtype-signatures@deno/mod.js';
import add from 'https://cdn.jsdelivr.net/gh/stdlib-js/number-float64-base-add@deno/mod.js';
import cadd from 'https://cdn.jsdelivr.net/gh/stdlib-js/complex-float64-base-add@deno/mod.js';
import caddf from 'https://cdn.jsdelivr.net/gh/stdlib-js/complex-float32-base-add@deno/mod.js';

var dtypes = [
    'float64',
    'float32',
    'int32',
    'uint8'
];

var sigs = signatures( dtypes, dtypes, dtypes );
// returns [...]

var table = {
    'default': add,
    'complex64': caddf,
    'complex128': cadd
};

var list = callbacks( table, sigs );
// returns [...]

The function accepts the following arguments:

table: callback table.
signatures: strided array containing binary interface signatures.

A callback table should have the following properties:

default: default callback.
complex64: callback for single-precision complex floating-point numbers.
complex128: callback for double-precision complex floating-point numbers.

Notes

The function assumes that the provided signature array has the following properties:
- a strided array having a stride length of 3 (i.e., every 3 elements define a binary interface signature).
- for each signature (i.e., set of three consecutive non-overlapping strided array elements), the first two elements are the input data types and the third element is the return data type.
- all signatures follow type promotion rules.

Examples

import dtypes from 'https://cdn.jsdelivr.net/gh/stdlib-js/strided-dtypes@deno/mod.js';
import signatures from 'https://cdn.jsdelivr.net/gh/stdlib-js/strided-base-binary-dtype-signatures@deno/mod.js';
import add from 'https://cdn.jsdelivr.net/gh/stdlib-js/number-float64-base-add@deno/mod.js';
import cadd from 'https://cdn.jsdelivr.net/gh/stdlib-js/complex-float64-base-add@deno/mod.js';
import caddf from 'https://cdn.jsdelivr.net/gh/stdlib-js/complex-float32-base-add@deno/mod.js';
import callbacks from 'https://cdn.jsdelivr.net/gh/stdlib-js/strided-base-binary-signature-callbacks@deno/mod.js';

// Get the list of supported strided array data types:
var dt = dtypes();

// Generate binary interface signatures:
var sigs = signatures( dt, dt, dt );

// Define a callback table:
var table = {
    'default': add,
    'complex64': caddf,
    'complex128': cadd
};

// Generate a list of callbacks according to type promotion rules:
var clbks = callbacks( table, sigs );
// returns [...]

See Also

@stdlib/strided-base/binary-dtype-signatures: generate a list of binary interface signatures from strided array data types.

Notice

This package is part of stdlib, a standard library with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.

Community

License

See LICENSE.

Copyright

Copyright © 2016-2025. The Stdlib Authors.

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