jes-ruby/src/main.cc
2014-08-14 21:22:54 -04:00

98 lines
2.1 KiB
C++

#include <iostream>
#include "ruby.h"
#include "Buffer.h"
#include "BufferWidget.h"
#include "Font.h"
#include "GL.h"
#include "GLProgram.h"
#include "GLShader.h"
#include "Widget.h"
#include "Window.h"
using namespace std;
RUBY_GLOBAL_SETUP
static const char * ruby_string(VALUE obj)
{
VALUE s = rb_funcall(obj, rb_intern("to_s"), 0);
return StringValueCStr(s);
}
static void print_exception(VALUE e)
{
VALUE c = rb_funcall(e, rb_intern("class"), 0);
VALUE m = rb_funcall(e, rb_intern("message"), 0);
VALUE bt = rb_funcall(e, rb_intern("backtrace"), 0);
if ((TYPE(bt) == T_ARRAY) && (RARRAY_LEN(bt) > 0))
{
fprintf(stderr,
"%s: %s (%s)\n",
ruby_string(rb_ary_entry(bt, 0)),
ruby_string(m),
ruby_string(c));
for (int i = 1; i < RARRAY_LEN(bt); i++)
{
fprintf(stderr,
" from %s\n",
ruby_string(rb_ary_entry(bt, i)));
}
}
else
{
fprintf(stderr, "%s (%s)\n", ruby_string(m), ruby_string(c));
}
}
static void handle_bootstrap_error()
{
print_exception(rb_errinfo());
rb_set_errinfo(Qnil);
}
static int bootstrap()
{
int rv = 0;
int err_state = 0;
Buffer_Init();
BufferWidget_Init();
Font_Init();
GL_Init();
GLProgram_Init();
GLShader_Init();
Widget_Init();
Window_Init();
rb_eval_string_protect(
"load File.expand_path('../../runtime/main.rb', $0)",
&err_state);
if (err_state != 0)
{
handle_bootstrap_error();
rv = 1;
}
return rv;
}
extern "C" int main(int argc, char *argv[])
{
int rv = 0;
int ruby_argc = 1;
char prog_name[] = "main";
char * ruby_argv[] = {&prog_name[0]};
char ** ruby_argv_p = &ruby_argv[0];
ruby_sysinit(&ruby_argc, &ruby_argv_p);
{
RUBY_INIT_STACK;
ruby_init();
ruby_init_loadpath();
ruby_script(argv[0]);
ruby_set_argv(argc, argv);
rv = bootstrap();
ruby_finalize();
}
return rv;
}