/* ``If you can't do it in ANSI C, it isn't worth doing.'' -- Unknown */
A framework that extends C with reflection and some other related golang-like features. Reflection implementation is based on DWARF data - one of the most common debugging information formats used by debuggers like gdb or lldb. Metac/reflect offers a familiar API similar in many ways to Golang/reflect package for introspecting code and manipulating data at runtime.
Features:
- Reflection for all native C types.
- 'Deep' functionality for printing, copying, comparing, and freeing memory of complex data structures.
- Supported on Ubuntu, macOS, Windows (msys2) with gcc or clang.
#include <stdio.h> // printf
#include <stdlib.h> // free
#include <math.h> // M_PI, M_E
#include "metac/reflect.h"
struct test {
int y;
char c;
double pi;
double e;
short _uninitialized_field;
};
int main(){
// we need to use this construction to wrap variable declaration
// to get its type information
WITH_METAC_DECLLOC(decl_location,
struct test t = {
.y = -10,
.c = 'a',
.pi = M_PI,
.e = M_E,
};
)
metac_value_t *p_val = METAC_VALUE_FROM_DECLLOC(decl_location, t);
char * s;
s = metac_entry_cdecl(metac_value_entry(p_val));
// next will output "struct test t = "
printf("%s = ", s);
free(s);
s = metac_value_string(p_val);
// next will output "{.y = -10, .c = 'a', .pi = 3.141593, .e = 2.718282, ._uninitialized_field = 0,};\n"
printf("%s;\n", s);
free(s);
metac_value_delete(p_val);
return 0;
}
To get more details please refer to the How to document.