@stdlib/assert-napi-status-ok v0.2.1

ok status

C utilities for asserting that a Node-API call returns an "ok" status.

Installation

npm install @stdlib/assert-napi-status-ok

Usage

var headerDir = require( '@stdlib/assert-napi-status-ok' );

headerDir

Absolute file path for the directory containing header files for C APIs.

var dir = headerDir;
// returns <string>

Examples

var headerDir = require( '@stdlib/assert-napi-status-ok' );

console.log( headerDir );
// => <string>

C APIs

Usage

#include "stdlib/assert/napi/status_ok.h"

STDLIB_ASSERT_NAPI_STATUS_OK_RET_VOID( env, call, message )

Macro for asserting that a Node-API API call returns an "ok" status.

#include <node_api.h>

static void foo( const napi_env env, const napi_value value, double *out ) {
    // ...

    STDLIB_ASSERT_NAPI_STATUS_OK_RET_VOID( env, napi_get_value_double( env, value, out ), "" )

    // ...

    return;
}

The macro expects the following arguments:

• env: environment under which the function is invoked.
• call: expression which returns a Node-API status.
• message: error message.

If a status is not "ok", an exception is raised and void returned.

STDLIB_ASSERT_NAPI_STATUS_OK_RET_NULL( env, call, message )

Macro for asserting that a Node-API API call returns an "ok" status.

#include <node_api.h>

static napi_value foo( const napi_env env, const napi_value value, double *out ) {
    // ...

    STDLIB_ASSERT_NAPI_STATUS_OK_RET_NULL( env, napi_get_value_double( env, value, out ), "" )

    // ...

    return NULL;
}

The macro expects the following arguments:

• env: environment under which the function is invoked.
• call: expression which returns a Node-API status.
• message: error message.

If a status is not "ok", an exception is raised and NULL returned.

STDLIB_ASSERT_NAPI_STATUS_OK_RET_VALUE( env, call, message, value )

Macro for asserting that a Node-API API call returns an "ok" status.

#include <node_api.h>

static double foo( const napi_env env, const napi_value value ) {
    // ...

    double *out;
    STDLIB_ASSERT_NAPI_STATUS_OK_RET_VALUE( env, napi_get_value_double( env, value, out ), "", 0.0/0.0 )

    // ...

    return out;
}

The macro expects the following arguments:

• env: environment under which the function is invoked.
• call: expression which returns a Node-API status.
• message: error message.
• value: return value.

If a status is not "ok", an exception is raised and the value specified by value returned.

Notice

This package is part of stdlib, a standard library for JavaScript and Node.js, 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 © 2016-2024. The Stdlib Authors.