[clang] [clang][ExtractAPI] Distinguish between record kind for display and for RTTI (PR #91466)

[Daniel Grumberg via cfe-commits]

https://github.com/daniel-grumberg updated 
https://github.com/llvm/llvm-project/pull/91466

>From a8c7763ed5f36e4faeba5eece2827b2dec010734 Mon Sep 17 00:00:00 2001
From: Daniel Grumberg <dgrumb...@apple.com>
Date: Wed, 8 May 2024 11:55:15 +0100
Subject: [PATCH] [clang][ExtractAPI] Distinguish between record kind for
 display and for RTTI

rdar://127732562
---
 clang/include/clang/ExtractAPI/API.h          |  7 ++++--
 .../clang/ExtractAPI/ExtractAPIVisitor.h      | 25 +++++++++++--------
 .../Serialization/SymbolGraphSerializer.cpp   |  6 ++---
 3 files changed, 23 insertions(+), 15 deletions(-)

diff --git a/clang/include/clang/ExtractAPI/API.h 
b/clang/include/clang/ExtractAPI/API.h
index d323e1668a72..bf291074fd06 100644
--- a/clang/include/clang/ExtractAPI/API.h
+++ b/clang/include/clang/ExtractAPI/API.h
@@ -266,6 +266,8 @@ struct APIRecord {
 
   AccessControl Access;
 
+  RecordKind KindForDisplay;
+
 private:
   const RecordKind Kind;
   friend class RecordContext;
@@ -277,6 +279,7 @@ struct APIRecord {
   APIRecord *getNextInContext() const { return NextInContext; }
 
   RecordKind getKind() const { return Kind; }
+  RecordKind getKindForDisplay() const { return KindForDisplay; }
 
   static APIRecord *castFromRecordContext(const RecordContext *Ctx);
   static RecordContext *castToRecordContext(const APIRecord *Record);
@@ -293,10 +296,10 @@ struct APIRecord {
         Availability(std::move(Availability)), Linkage(Linkage),
         Comment(Comment), Declaration(Declaration), SubHeading(SubHeading),
         IsFromSystemHeader(IsFromSystemHeader), Access(std::move(Access)),
-        Kind(Kind) {}
+        KindForDisplay(Kind), Kind(Kind) {}
 
   APIRecord(RecordKind Kind, StringRef USR, StringRef Name)
-      : USR(USR), Name(Name), Kind(Kind) {}
+      : USR(USR), Name(Name), KindForDisplay(Kind), Kind(Kind) {}
 
   // Pure virtual destructor to make APIRecord abstract
   virtual ~APIRecord() = 0;
diff --git a/clang/include/clang/ExtractAPI/ExtractAPIVisitor.h 
b/clang/include/clang/ExtractAPI/ExtractAPIVisitor.h
index 97cc457ea2a9..8ccebe457ed5 100644
--- a/clang/include/clang/ExtractAPI/ExtractAPIVisitor.h
+++ b/clang/include/clang/ExtractAPI/ExtractAPIVisitor.h
@@ -194,6 +194,15 @@ class ExtractAPIVisitorBase : public 
RecursiveASTVisitor<Derived> {
     return Bases;
   }
 
+  APIRecord::RecordKind getKindForDisplay(const CXXRecordDecl *Decl) {
+    if (Decl->isUnion())
+      return APIRecord::RK_Union;
+    if (Decl->isStruct())
+      return APIRecord::RK_Struct;
+
+    return APIRecord::RK_CXXClass;
+  }
+
   StringRef getOwningModuleName(const Decl &D) {
     if (auto *OwningModule = D.getImportedOwningModule())
       return OwningModule->Name;
@@ -599,13 +608,6 @@ bool ExtractAPIVisitorBase<Derived>::VisitCXXRecordDecl(
   DeclarationFragments SubHeading =
       DeclarationFragmentsBuilder::getSubHeading(Decl);
 
-  APIRecord::RecordKind Kind;
-  if (Decl->isUnion())
-    Kind = APIRecord::RecordKind::RK_Union;
-  else if (Decl->isStruct())
-    Kind = APIRecord::RecordKind::RK_Struct;
-  else
-    Kind = APIRecord::RecordKind::RK_CXXClass;
   auto Access = DeclarationFragmentsBuilder::getAccessControl(Decl);
 
   CXXClassRecord *Record;
@@ -619,13 +621,15 @@ bool ExtractAPIVisitorBase<Derived>::VisitCXXRecordDecl(
         AvailabilityInfo::createFromDecl(Decl), Comment, Declaration,
         SubHeading, Template(Decl->getDescribedClassTemplate()), Access,
         isInSystemHeader(Decl));
-  } else
+  } else {
     Record = API.createRecord<CXXClassRecord>(
         USR, Name, createHierarchyInformationForDecl(*Decl), Loc,
         AvailabilityInfo::createFromDecl(Decl), Comment, Declaration,
-        SubHeading, Kind, Access, isInSystemHeader(Decl),
-        isEmbeddedInVarDeclarator(*Decl));
+        SubHeading, APIRecord::RecordKind::RK_CXXClass, Access,
+        isInSystemHeader(Decl), isEmbeddedInVarDeclarator(*Decl));
+  }
 
+  Record->KindForDisplay = getKindForDisplay(Decl);
   Record->Bases = getBases(Decl);
 
   return true;
@@ -849,6 +853,7 @@ bool ExtractAPIVisitorBase<Derived>::
       Template(Decl), DeclarationFragmentsBuilder::getAccessControl(Decl),
       isInSystemHeader(Decl));
 
+  CTPSR->KindForDisplay = getKindForDisplay(Decl);
   CTPSR->Bases = getBases(Decl);
 
   return true;
diff --git a/clang/lib/ExtractAPI/Serialization/SymbolGraphSerializer.cpp 
b/clang/lib/ExtractAPI/Serialization/SymbolGraphSerializer.cpp
index 34278b5d40c4..c16d4623f115 100644
--- a/clang/lib/ExtractAPI/Serialization/SymbolGraphSerializer.cpp
+++ b/clang/lib/ExtractAPI/Serialization/SymbolGraphSerializer.cpp
@@ -514,7 +514,7 @@ Object serializeSymbolKind(APIRecord::RecordKind RK, 
Language Lang) {
 /// which is prefixed by the source language name, useful for tooling to parse
 /// the kind, and a \c displayName for rendering human-readable names.
 Object serializeSymbolKind(const APIRecord &Record, Language Lang) {
-  return serializeSymbolKind(Record.getKind(), Lang);
+  return serializeSymbolKind(Record.KindForDisplay, Lang);
 }
 
 /// Serialize the function signature field, as specified by the
@@ -591,8 +591,8 @@ Array generateParentContexts(const 
SmallVectorImpl<SymbolReference> &Parents,
     Elem["usr"] = Parent.USR;
     Elem["name"] = Parent.Name;
     if (Parent.Record)
-      Elem["kind"] =
-          serializeSymbolKind(Parent.Record->getKind(), Lang)["identifier"];
+      Elem["kind"] = serializeSymbolKind(Parent.Record->KindForDisplay,
+                                         Lang)["identifier"];
     else
       Elem["kind"] =
           serializeSymbolKind(APIRecord::RK_Unknown, Lang)["identifier"];

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