fx/test/dynamic-printf.c

#include <fx/cstr.h>
#include <fx/reflection/function.h>
#include <fx/string.h>
#include <fx/value.h>
#include <inttypes.h>
#include <stdio.h>

int main(int argc, const char **argv)
{
	fx_type_id arg_types[] = {
		FX_TYPE_CSTR,
	};

	fx_function *func = fx_function_create(
		"printf",
		FX_FUNCTION_F_VARARG,
		(fx_function_impl)printf,
		arg_types,
		1,
		FX_TYPE_INT);

	fx_string *fmt = fx_string_create_from_cstr(
		"Hello %s! You are number %lf\n");
	fx_value args[] = {
		FX_VALUE_OBJECT(fmt),
		FX_CSTR("Jonh"),
		FX_DOUBLE(2.5),
	};

	fx_function_bind(func, args, sizeof args / sizeof args[0]);

	fx_value result = FX_VALUE_EMPTY;
	int r = fx_function_invoke(func, NULL, 0, &result);
	printf("%d\n", result.v_int);
	return 0;
}