diff options
| author | Tim Foley <tfoley@nvidia.com> | 2017-07-19 09:36:35 -0700 |
|---|---|---|
| committer | Tim Foley <tfoley@nvidia.com> | 2017-07-19 18:15:37 -0700 |
| commit | 3f48e1c0d84bf4909954154ad147559656e87516 (patch) | |
| tree | 0b93a109d51e6565560ad785519a863386490e2a /source/core/common.h | |
| parent | a2b8b4c20632d79721052abd232fe2d1bdf2700d (diff) | |
Try to improve handling of failures during compilation
The change is mostly about trying to make sure the compiler "fails safe" when it encounters an internal assumption that isn't met.
Most internal errors will now throw exceptions (yes, exceptions are evil, but this will work for now), and these get caught in `spCompile` so that they don't propagate to the user (they just see a message that compilation aborted due to an internal error).
Subsequent changes are going to need to work on diagnosing as many of these situations as possible, so that users can at least know what construct in their code was unexpected or unhandled by the compiler.
Diffstat (limited to 'source/core/common.h')
| -rw-r--r-- | source/core/common.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/source/core/common.h b/source/core/common.h index 25e85dc66..f0f6902d1 100644 --- a/source/core/common.h +++ b/source/core/common.h @@ -34,6 +34,35 @@ namespace Slang v0 = _Move(v1); v1 = _Move(tmp); } + +#ifdef _MSC_VER +#define SLANG_RETURN_NEVER __declspec(noreturn) +#else +#efine SLANG_RETURN_NEVER /* empty */ +#endif + + SLANG_RETURN_NEVER void signalUnexpectedError(char const* message); } +#define SLANG_UNEXPECTED(reason) \ + Slang::signalUnexpectedError("unexpected: " reason) + +#define SLANG_UNIMPLEMENTED_X(what) \ + Slang::signalUnexpectedError("unimplemented: " what) + +#define SLANG_UNREACHABLE(msg) \ + Slang::signalUnexpectedError("unreachable code executed: " msg) + +#ifdef _DEBUG +#define SLANG_EXPECT(VALUE, MSG) if(VALUE) {} else Slang::signalUnexpectedError("assertion failed: '" MSG "'") +#define SLANG_ASSERT(VALUE) SLANG_EXPECT(VALUE, #VALUE) +#else +#define SLANG_EXPECT(VALUE, MSG) do {} while(0) +#define SLANG_ASSERT(VALUE) do {} while(0) +#endif + +#define SLANG_RELEASE_ASSERT(VALUE) if(VALUE) {} else Slang::signalUnexpectedError("assertion failed") +#define SLANG_RELEASE_EXPECT(VALUE, WHAT) if(VALUE) {} else SLANG_UNEXPECTED(WHAT) + + #endif |