Work with CGO Shared library header

[bendemartin97]

Hey,

I'm currently working on a project, in which I want to call Go Function in PHP. I created a c-shared library in go with some basic functions:

import "C"
import (
	"fmt"
)

//export print
func print(out *C.char) {
	fmt.Println("[GO print] " + C.GoString(out))
}

//export sum
func sum(a C.int, b C.int) C.int {
	return a + b
}

func main() {}

The header file created by go self looks like:

/* Code generated by cmd/cgo; DO NOT EDIT. */

/* package Go */


#line 1 "cgo-builtin-export-prolog"

#include <stddef.h>

#ifndef GO_CGO_EXPORT_PROLOGUE_H
#define GO_CGO_EXPORT_PROLOGUE_H

#ifndef GO_CGO_GOSTRING_TYPEDEF
typedef struct { const char *p; ptrdiff_t n; } _GoString_;
#endif

#endif

/* Start of preamble from import "C" comments.  */




/* End of preamble from import "C" comments.  */


/* Start of boilerplate cgo prologue.  */
#line 1 "cgo-gcc-export-header-prolog"

#ifndef GO_CGO_PROLOGUE_H
#define GO_CGO_PROLOGUE_H

typedef signed char GoInt8;
typedef unsigned char GoUint8;
typedef short GoInt16;
typedef unsigned short GoUint16;
typedef int GoInt32;
typedef unsigned int GoUint32;
typedef long long GoInt64;
typedef unsigned long long GoUint64;
typedef GoInt64 GoInt;
typedef GoUint64 GoUint;
typedef size_t GoUintptr;
typedef float GoFloat32;
typedef double GoFloat64;
#ifdef _MSC_VER
#include <complex.h>
typedef _Fcomplex GoComplex64;
typedef _Dcomplex GoComplex128;
#else
typedef float _Complex GoComplex64;
typedef double _Complex GoComplex128;
#endif

/*
  static assertion to make sure the file is being used on architecture
  at least with matching size of GoInt.
*/
typedef char _check_for_64_bit_pointer_matching_GoInt[sizeof(void*)==64/8 ? 1:-1];

#ifndef GO_CGO_GOSTRING_TYPEDEF
typedef _GoString_ GoString;
#endif
typedef void *GoMap;
typedef void *GoChan;
typedef struct { void *t; void *v; } GoInterface;
typedef struct { void *data; GoInt len; GoInt cap; } GoSlice;

#endif

/* End of boilerplate cgo prologue.  */

#ifdef __cplusplus
extern "C" {
#endif

extern void print(char* out);
extern int sum(int a, int b);

#ifdef __cplusplus
}
#endif

I want to parse it as followed:

$lib = (new FFIMe($libPath . "libutil.so"))
            ->include($libPath . "libutil.h")
            ->build();

I get the following error:
Unknown directive found line {"exception":"[object] (LogicException(code: 0): Unknown directive found line at /var/www/html/vendor/ircmaxell/php-c-parser/lib/PreProcessor.php:140)

I would greatly appreciate any suggestions or ideas that you may have on this topic.

[bendemartin97]

I found a fix by myself:

I added a case after PreProcessor.php line:140

case 'line': break; 

Issue closed

[Bob Weinand]

Yep, thanks for reporting, just added ircmaxell/php-c-parser@29e0223.