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Don't crash if clang setup fails. (#6804)

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Defer creating the CppContext until we have all of its components, so
that we know they're not null. Don't track the action on the context,
since it's not a reliable way of getting back to the compiler invocation
on failure. Don't flush the diagnostics emitter from the emitter
destructor since the derived class emitter will already have been
destroyed at that point. Distinguish between clang setup failing and
clang merely producing errors, and don't connect the check context to
clang if clang setup failed.

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Co-authored-by: David Blaikie <dblaikie@gmail.com>
This commit is contained in:
Richard Smith
2026-02-27 02:44:08 +00:00
committed by GitHub
co-authored by David Blaikie
parent a6a0e55167
commit d5ec82e7ac
10 changed files with 66 additions and 48 deletions
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toolchain/check/testdata/interop/cpp/function/arithmetic_types_bridged.carbon
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@@ -988,7 +988,6 @@ fn F() {
// CHECK:STDOUT: %Cpp: <namespace> = namespace file.%Cpp.import_cpp, [concrete] {
// CHECK:STDOUT: .foo = %foo.cpp_overload_set.value
// CHECK:STDOUT: import Cpp//...
// CHECK:STDOUT: has_error
// CHECK:STDOUT: }
// CHECK:STDOUT: %foo.cpp_overload_set.value: %foo.cpp_overload_set.type = cpp_overload_set_value @foo.cpp_overload_set [concrete = constants.%foo.cpp_overload_set.value]
// CHECK:STDOUT: %foo.decl: %foo.type = fn_decl @foo [concrete = constants.%foo] {