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[Cherry-pick into next] [lldb] Avoid costly SwiftASTContext fallback for builtin types #10465

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Merged
adrian-prantl merged 1 commit into from
Apr 9, 2025
Merged

[Cherry-pick into next] [lldb] Avoid costly SwiftASTContext fallback for builtin types #10465

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6 changes: 6 additions & 0 deletions lldb/source/Plugins/LanguageRuntime/Swift/SwiftLanguageRuntimeDynamicTypeResolution.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -757,6 +757,9 @@ SwiftLanguageRuntime::GetNumChildren(CompilerType type,
//
// However, some imported Clang types (specifically enums) will also produce
// `BuiltinTypeInfo` instances. These types are not to be handled here.
if (TypeSystemSwiftTypeRef::IsBuiltinType(type))
return 0;

LLDB_LOG(GetLog(LLDBLog::Types),
"{0}: unrecognized builtin type info or this is a Clang type "
"without DWARF debug info",
Expand Down Expand Up @@ -1162,6 +1165,9 @@ SwiftLanguageRuntime::GetIndexOfChildMemberWithName(
}
}
case TypeInfoKind::Builtin: {
if (TypeSystemSwiftTypeRef::IsBuiltinType(type))
return {SwiftLanguageRuntime::eNotFound, {}};

CompilerType clang_type;
if (ts.IsImportedType(type.GetOpaqueQualType(), &clang_type)) {
clang_type = GetTypedefedTypeRecursive(clang_type);
Expand Down