mruby 3.3.0
mruby is the lightweight implementation of the Ruby language
Loading...
Searching...
No Matches
throw.h
Go to the documentation of this file.
1
7#ifndef MRB_THROW_H
8#define MRB_THROW_H
9
10#if defined(MRB_USE_CXX_ABI) && !defined(__cplusplus)
11# error Trying to use C++ exception handling in C code
12#endif
13
14#if defined(MRB_USE_CXX_EXCEPTION)
15
16# if defined(__cplusplus)
17
18#define MRB_TRY(buf) try {
19#define MRB_CATCH(buf) } catch(mrb_jmpbuf_impl e) { if (e != (buf)->impl) { throw e; }
20#define MRB_END_EXC(buf) }
21
22#define MRB_THROW(buf) throw((buf)->impl)
23typedef mrb_int mrb_jmpbuf_impl;
24
25# else
26# error "need to be compiled with C++ compiler"
27# endif /* __cplusplus */
28
29#else
30
31#include <setjmp.h>
32
33#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
34#define MRB_SETJMP _setjmp
35#define MRB_LONGJMP _longjmp
36#elif defined(__MINGW64__) && defined(__GNUC__) && __GNUC__ >= 4
37#define MRB_SETJMP __builtin_setjmp
38#define MRB_LONGJMP __builtin_longjmp
39#else
40#define MRB_SETJMP setjmp
41#define MRB_LONGJMP longjmp
42#endif
43
44#define MRB_TRY(buf) if (MRB_SETJMP((buf)->impl) == 0) {
45#define MRB_CATCH(buf) } else {
46#define MRB_END_EXC(buf) }
47
48#define MRB_THROW(buf) MRB_LONGJMP((buf)->impl, 1);
49#define mrb_jmpbuf_impl jmp_buf
50
51#endif
52
53#if defined(MRB_USE_CXX_EXCEPTION)
54extern mrb_int mrb_jmpbuf_id;
55#endif
56
57struct mrb_jmpbuf {
58 mrb_jmpbuf_impl impl;
59
60#if defined(MRB_USE_CXX_EXCEPTION)
61 mrb_jmpbuf() : impl(mrb_jmpbuf_id++) {}
62#endif
63};
64
65#endif /* MRB_THROW_H */
Definition throw.h:57