58 lines
1.2 KiB
C
58 lines
1.2 KiB
C
/**
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** @file 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 MRC_THROW_H
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#define MRC_THROW_H
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#if defined(MRC_USE_CXX_ABI) && !defined(__cplusplus)
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# error Trying to use C++ exception handling in C code
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#endif
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#if defined(MRC_USE_CXX_EXCEPTION)
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# if defined(__cplusplus)
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#define MRC_TRY(buf) try {
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#define MRC_CATCH(buf) } catch(mrc_jmpbuf *e) { if (e != (buf)) { throw e; }
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#define MRC_END_EXC(buf) }
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#define MRC_THROW(buf) throw(buf)
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typedef void *mrc_jmpbuf_impl;
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# else
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# error "need to be compiled with C++ compiler"
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# endif /* __cplusplus */
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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 MRC_SETJMP _setjmp
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#define MRC_LONGJMP _longjmp
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#elif defined(__MINGW64__) && defined(__GNUC__) && __GNUC__ >= 4
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#define MRC_SETJMP __builtin_setjmp
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#define MRC_LONGJMP __builtin_longjmp
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#else
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#define MRC_SETJMP setjmp
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#define MRC_LONGJMP longjmp
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#endif
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#define MRC_TRY(buf) if (MRC_SETJMP((buf)->impl) == 0) {
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#define MRC_CATCH(buf) } else {
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#define MRC_END_EXC(buf) }
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#define MRC_THROW(buf) MRC_LONGJMP((buf)->impl, 1);
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#define mrc_jmpbuf_impl jmp_buf
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#endif
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struct mrc_jmpbuf {
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mrc_jmpbuf_impl impl;
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};
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#endif /* MRC_THROW_H */
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