https://github.com/ircmaxell/FFIMe

A FFI Wrapper library and header parser!
https://github.com/ircmaxell/FFIMe

Last synced: about 1 month ago
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A FFI Wrapper library and header parser!

• Host: GitHub
• URL: https://github.com/ircmaxell/FFIMe
• Owner: ircmaxell
• License: mit
• Created: 2019-02-18T10:35:27.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2024-01-02T20:37:54.000Z (8 months ago)
• Last Synced: 2024-07-24T08:46:29.311Z (about 2 months ago)
• Language: PHP
• Size: 389 KB
• Stars: 136
• Watchers: 11
• Forks: 5
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# FFIMe

This is a wrapper library for PHP's FFI extension.

You provide it with a shared object, and one or more header files, and it automatically generates the C structures and function signatures for you (just like doing it in C would).

It then provides wrapper classes for all C structures and functions to provide a fully typed experience.

## Usage:

Currently there are two modes of operation, an "inline" mode:

```php

$libc = (new FFIMe\FFIMe(FFIMe\FFIMe::LIBC))

        ->include("stdio.h")

        ->build();

$libc->printf("test\n");

```

And a code generating mode:

```php

(new FFIMe\FFIMe(FFIMe\FFIMe::LIBC))

        ->include("stdio.h")

        ->include("other.h")

        ->codeGen('full\\classname', 'path/to/file.php');

require 'path/to/file.php';

$libc = full\classname::ffi();

$libc->printf("test\n");

```

The code generating mode is designed to be used in production, where you'd code generate during a build step and ship with your library.

This should now work for the majority of header files. Looking at some of the code, specifically the compiler, there is a bit of hard coding necessary. So I don't expect every file to work out of the box. If you find a header file that doesn't work, just open a bug and we'll take a look.

Check out the [examples](examples/);

## Slimming it down

Generating FFI for large projects may result in codefiles counting tens or hundreds of thousands of lines, though only a few hundred or thousand are actually needed. This may result in a non-trivial overhead, which can be removed after development.

```php

$ffi = (new FFIMe\FFIMe(FFIMe\FFIMe::LIBC))

        ->include("stdio.h");

        

$ffi->codeGenWithInstrumentation('full\\classname', 'path/to/file.php');

// Run some code providing 100% coverage of all code using FFI

(new PHPUnit\TextUI\Command)->run([$argv[0], "test"], false);

$ffi->codeGen('full\\classname', 'path/to/file.php');

```