Hi all,
I'm writing an auto-completion plug-in for Sublime Text 3 with a
compiled component in C++. The compiled component is written as a clang
tool living in llvm/tools/clang/tools/ and it links with the
clangFrontend library. The bridge between Sublime's Python interface and
C++ is pybind11.
So, for every suitable open buffer in Sublime I have a clang::ASTUnit
fetching completions for it. The preamble of each file definitely needs
to be precompiled otherwise fetching completions is too slow for serious
use.
When I construct a clang::ASTUnit via
ASTUnit::LoadFromCompilerInvocation (I build the invocation myself), and
I choose the parameter PrecompilePreambleAfterNParses to be 1, then I
sometimes get an assertion error involving clang::SourceManager, saying
that two SourceLocations don't come from the same SourceManager.
I don't know how to fix this problem, as I cannot pass my own
SourceManager anywhere. And it happens during construction of an
ASTUnit, so I cannot re-arrange calls anywhere. If anyone has an idea as
to what causes this then I'd be very interested, because I can't
continue developing this plugin unless I fix this issue.
I have found out that if I set PrecompilePreambleAfterNParses to 0,
everything seems to work fine. So, I'm guessing it has something to do
with precompiling the preamble somehow. The full stack trace of the
assertion error is below. If someone needs more info like local
variables I can provide that too.
Regards,
Raoul Wols
* thread #6: tid = 0x6aed, 0x7fffbeb0edda
libsystem_kernel.dylib`__pthread_kill + 10, stop reason = signal SIGABRT
* frame #0: 0x7fffbeb0edda libsystem_kernel.dylib`__pthread_kill
+ 10
frame #1: 0x7fffbebfa787 libsystem_pthread.dylib`pthread_kill +
90
frame #2: 0x7fffbea74420 libsystem_c.dylib`abort + 129
frame #3: 0x7fffbea3b893 libsystem_c.dylib`__assert_rtn + 320
frame #4: 0x00010e98b63e
Clara.so`clang::FullSourceLoc::isBeforeInTranslationUnitThan(this=0x7406f3f8,
Loc=FullSourceLoc @ 0x7406f240) const + 174 at
SourceLocation.h:319
frame #5: 0x00010e997cec
Clara.so`clang::DiagnosticsEngine::DiagStatePoint::operator<(clang::DiagnosticsEngine::DiagStatePoint
const&) const(this=0x7406f3f0, RHS=0x7f886218a2f0) + 140 at
Diagnostic.h:245
frame #6: 0x00010e997bd4
Clara.so`std::__1::__wrap_iter
std::__1::__upper_boundclang::DiagnosticsEngine::DiagStatePoint>&,
std::__1::__wrap_iter,
clang::DiagnosticsEngine::DiagStatePoint>(std::__1::__wrap_iter,
std::__1::__wrap_iter,
clang::DiagnosticsEngine::DiagStatePoint const&,
std::__1::__lessclang::DiagnosticsEngine::DiagStatePoint>&) [inlined]
std::__1::__lessclang::DiagnosticsEngine::DiagStatePoint>::operator(this=0x7406f4e8,
__x=0x7406f3f0,
__y=0x7f886218a2f0)(clang::DiagnosticsEngine::DiagStatePoint const&,
clang::DiagnosticsEngine::DiagStatePoint const&) const + 436 at
algorithm:702
frame #7: 0x00010e997bc7
Clara.so`std::__1::__wrap_iter
std::__1::__upper_boundclang::DiagnosticsEngine::DiagStatePoint>&,
std::__1::__wrap_iter,
clang::DiagnosticsEngine::DiagStatePoint>(__first=__wrap_iter*> @ 0x7406f2f8,
__last=__wrap_iter @
0x7406f2f0, __value_=0x7406f3f0,
__comp=0x7406f4e8) + 423 at algorithm:4180
frame #8: 0x00010e98b51d
Clara.so`clang::DiagnosticsEngine::GetDiagStatePointForLoc(clang::SourceLocation)
const [inlined]
std::__1::__wrap_iter
std::__1::upper_bound,
clang::DiagnosticsEngine::DiagStatePoint,
std::__1::__lessclang::DiagnosticsEngine::DiagStatePoint>
>(__first=__wrap_iter @
0x7406f4f8,
__last=__wrap_iter @
0x7406f4f0, __value_=0x7406f3f0,
__comp=__lessclang::DiagnosticsEngine::DiagStatePoint> @ 0x7406f4e8) + 54 at
algorithm:4202
frame #9: 0x00010e98b4e7
Clara.so`clang::DiagnosticsEngine::GetDiagStatePointForLoc(clang::SourceLocation)
const [inlined]
std::__1::__wrap_iter
std::__1::upper_bound,
clang::DiagnosticsEngine::DiagStatePoint>(__first=__wrap_iter*> @ 0x7406f4c0,
__last=__wrap_iter @
0x7406f4b8, __value_=0x7406f3f0) + 70 at algorithm:4211
frame #10: 0x00010e98b4a1
Clara.so`clang::DiagnosticsEngine::GetDiagStatePointForLoc(this=0x7f8861189e00,
L=(ID = 825)) const + 1537 at Diagnostic.cpp:177
frame #11: 0x00010e99cb6e
Clara.so`clang::DiagnosticIDs::getDiagnosticSeverity(this=0x7f886009f390,
DiagID=930, Loc=(ID = 825), Diag=0x7f8861189e00) const + 126 at
DiagnosticIDs.cpp:415
frame #12: 0x00010e904921
Clara.so`clang::DiagnosticsEngine::isIgnored(this=0x7f8861189e00,
DiagID=930, Loc=(ID = 825)) const + 65 at Diagnostic.h:652
frame #13: 0x00010e8e32aa
Clara.so`clang::Preprocessor::HandleDefineDirective(this=0x7f886367e200,
DefineTok=0x7f8862810610, ImmediatelyAfterHeaderGuard=false) + 4170
at PPDirectives.cpp:2546
frame #14: 0x00010e8daf9
