mirror of
https://github.com/mruby/mruby
synced 2026-06-08 16:11:16 +00:00
Kazuho Oku
50 lines
1.0 KiB
C
50 lines
1.0 KiB
C
/*
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** mruby/throw.h - mruby exception throwing handler
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**
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** See Copyright Notice in mruby.h
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*/
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#ifndef MRB_THROW_H
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#define MRB_THROW_H
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#ifdef MRB_ENABLE_CXX_EXCEPTION
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#define MRB_TRY(buf) do { try {
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#define MRB_CATCH(buf) } catch(mrb_jmpbuf_impl e) { if (e != (buf)->impl) { throw e; }
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#define MRB_END_EXC(buf) } } while(0)
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#define MRB_THROW(buf) throw((buf)->impl)
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typedef mrb_int mrb_jmpbuf_impl;
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#else
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#include <setjmp.h>
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#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
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#define MRB_SETJMP _setjmp
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#define MRB_LONGJMP _longjmp
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#else
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#define MRB_SETJMP setjmp
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#define MRB_LONGJMP longjmp
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#endif
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#define MRB_TRY(buf) do { if (MRB_SETJMP((buf)->impl) == 0) {
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#define MRB_CATCH(buf) } else {
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#define MRB_END_EXC(buf) } } while(0)
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#define MRB_THROW(buf) MRB_LONGJMP((buf)->impl, 1);
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#define mrb_jmpbuf_impl jmp_buf
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#endif
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struct mrb_jmpbuf {
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mrb_jmpbuf_impl impl;
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#ifdef MRB_ENABLE_CXX_EXCEPTION
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static mrb_int jmpbuf_id;
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mrb_jmpbuf() : impl(jmpbuf_id++) {}
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#endif
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};
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#endif /* MRB_THROW_H */
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