PHP code example of ffi / preprocessor

1. Go to this page and download the library: Download ffi/preprocessor library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php.

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

ffi / preprocessor example snippets


use FFI\Preprocessor\Preprocessor;

$pre = new Preprocessor();

echo $pre->process('
    #define VK_DEFINE_HANDLE(object) typedef struct object##_T* object;

    #if !defined(VK_DEFINE_NON_DISPATCHABLE_HANDLE)
        #if defined(__LP64__) || defined(_WIN64) || (defined(__x86_64__) && !defined(__ILP32__) ) || defined(_M_X64) || defined(__ia64) || defined (_M_IA64) || defined(__aarch64__) || defined(__powerpc64__)
            #define VK_DEFINE_NON_DISPATCHABLE_HANDLE(object) typedef struct object##_T *object;
        #else
            #define VK_DEFINE_NON_DISPATCHABLE_HANDLE(object) typedef uint64_t object;
        #endif
    #endif

    VK_DEFINE_HANDLE(VkInstance)
    VK_DEFINE_NON_DISPATCHABLE_HANDLE(VkSemaphore)
');

//
// Expected Output:
//
//  typedef struct VkInstance_T* VkInstance;
//  typedef uint64_t VkSemaphore;
//


use FFI\Preprocessor\Preprocessor;
use FFI\Preprocessor\Directive\ObjectLikeDirective;

$pre = new Preprocessor();

// #define A
$pre->define('A');

// #define B 42
$pre->define('B', '42');

// #define С 42
$pre->define('С', new ObjectLikeDirective('42'));


use FFI\Preprocessor\Preprocessor;
use FFI\Preprocessor\Directive\FunctionLikeDirective;

$pre = new Preprocessor();

// #define C(object) object##_T* object;
$pre->define('C', function (string $arg) {
    return "${arg}_T* ${arg};";
});

// #define D(object) object##_T* object;
$pre->define('D', new FunctionLikeDirective(['object'], 'object##_T* object'));


use FFI\Preprocessor\Preprocessor;

$pre = new Preprocessor();

$pre->


use FFI\Preprocessor\Preprocessor;

$logger = new Psr3LoggerImplementation();

$pre = new Preprocessor($logger);

$pre->process('
    #error Error message
    // Will be sent to the logger:
    //  - LoggerInterface::error("Error message")
    
    #warning Warning message
    // Will be sent to the logger: 
    //  - LoggerInterface::warning("Warning message")
');