================
@@ -2574,6 +2574,128 @@ TypeSystemClang::GetDeclContextForType(clang::QualType
type) {
return nullptr;
}
+/// Returns the clang::RecordType of the specified \ref qual_type. This
+/// function will try to complete the type if necessary (and allowed
+/// by the specified \ref allow_completion). If we fail to return a *complete*
+/// type, returns nullptr.
+static clang::RecordType const *GetCompleteRecordType(clang::ASTContext *ast,
+ clang::QualType
qual_type,
+ bool allow_completion) {
+ assert(qual_type->isRecordType());
+
+ auto const *tag_type = llvm::cast<clang::RecordType>(qual_type.getTypePtr());
+
+ clang::CXXRecordDecl *cxx_record_decl = qual_type->getAsCXXRecordDecl();
+
+ // RecordType with no way of completing it, return the plain
+ // TagType.
+ if (!cxx_record_decl || !cxx_record_decl->hasExternalLexicalStorage())
+ return tag_type;
+
+ const bool is_complete = cxx_record_decl->isCompleteDefinition();
+ const bool fields_loaded =
+ cxx_record_decl->hasLoadedFieldsFromExternalStorage();
+
+ // Already completed this type, nothing to be done.
+ if (is_complete && fields_loaded)
+ return tag_type;
+
+ if (!allow_completion)
+ return nullptr;
+
+ // Call the field_begin() accessor to for it to use the external source
+ // to load the fields...
+ //
+ // TODO: if we need to complete the type but have no external source,
+ // shouldn't we error out instead?
+ clang::ExternalASTSource *external_ast_source = ast->getExternalSource();
+ if (external_ast_source) {
+ external_ast_source->CompleteType(cxx_record_decl);
+ if (cxx_record_decl->isCompleteDefinition()) {
+ cxx_record_decl->field_begin();
+ cxx_record_decl->setHasLoadedFieldsFromExternalStorage(true);
+ }
+ }
+
+ return tag_type;
+}
+
+/// Returns the clang::EnumType of the specified \ref qual_type. This
+/// function will try to complete the type if necessary (and allowed
+/// by the specified \ref allow_completion). If we fail to return a *complete*
+/// type, returns nullptr.
+static clang::EnumType const *GetCompleteEnumType(clang::ASTContext *ast,
----------------
labath wrote:
const before object type (is this some swift style or something?)
https://github.com/llvm/llvm-project/pull/95402
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