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[Cherry-pick into next] [lldb] Thread llvm::Expected through closure #10094

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Feb 21, 2025
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[Cherry-pick into next] [lldb] Thread llvm::Expected through closure #10094

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12 changes: 5 additions & 7 deletions lldb/source/Plugins/LanguageRuntime/Swift/SwiftLanguageRuntimeDynamicTypeResolution.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1201,7 +1201,7 @@ llvm::Expected<CompilerType> SwiftLanguageRuntime::GetChildCompilerTypeAtIndex(
auto get_from_field_info =
[&](const swift::reflection::FieldInfo &field,
std::optional<TypeSystemSwift::TupleElement> tuple,
bool hide_existentials, bool is_enum) -> CompilerType {
bool hide_existentials, bool is_enum) -> llvm::Expected<CompilerType> {
bool is_indirect_enum =
is_enum && !field.Offset && field.TR &&
llvm::isa<swift::reflection::BuiltinTypeRef>(field.TR) &&
Expand All @@ -1228,20 +1228,18 @@ llvm::Expected<CompilerType> SwiftLanguageRuntime::GetChildCompilerTypeAtIndex(
else if (is_indirect_enum) {
ThreadSafeReflectionContext reflection_ctx = GetReflectionContext();
if (!reflection_ctx)
return {};
return llvm::createStringError("no reflection context");
// The indirect enum field should point to a closure context.
LLDBTypeInfoProvider tip(*this, &exe_ctx);
lldb::addr_t instance = ::MaskMaybeBridgedPointer(GetProcess(), pointer);
auto ti_or_err = reflection_ctx->GetTypeInfoFromInstance(
instance, &tip, ts->GetDescriptorFinder());
if (!ti_or_err) {
LLDB_LOG_ERRORV(GetLog(LLDBLog::Types), ti_or_err.takeError(), "{0}");
return {};
}
if (!ti_or_err)
return ti_or_err.takeError();
auto *ti = &*ti_or_err;
auto *rti = llvm::dyn_cast_or_null<swift::reflection::RecordTypeInfo>(ti);
if (rti->getFields().size() < 1)
return {};
return llvm::createStringError("no fields in indirect enum");
auto &field = rti->getFields()[0];
auto *type_ref = field.TR;
result = GetTypeFromTypeRef(*ts, type_ref);
Expand Down