[clang-tools-extra] [clang-doc] Display enum type along with enum name in HTML view (PR #181347)

[Paul Kirth via cfe-commits]

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@@ -156,10 +156,18 @@ static void writeNameLink(const StringRef &CurrentPath, const Reference &R,
 
 static void genMarkdown(const ClangDocContext &CDCtx, const EnumInfo &I,
                         llvm::raw_ostream &OS) {
-  if (I.Scoped)
-    writeLine("| enum class " + I.Name + " |", OS);
-  else
-    writeLine("| enum " + I.Name + " |", OS);
+  std::string Header = "| enum ";
+  if(I.Scoped)
+    Header += "class ";
+  Header += I.Name;
+  Header += " ";
+  if(I.BaseType && I.BaseType->Type.QualName != "") {
+    Header += ": ";
+    Header += I.BaseType->Type.QualName;
+    Header += " ";
+  }
+  Header += "|";
+  writeLine(Header, OS);
----------------
ilovepi wrote:

I know we have `writeLine`, but this honestly seems like a more appropriate thing to use as stream operations. There's probably a complex way to write this as a set of Twine operations that's even better, but for simplicity lets just write these to the stream and call it a day. An alternative would be to use something like `llvm::formatv()` or one of its variants for a printf like interface.

Additionally, why check `string != ""` over `.empty()`? And just for the future, you don't need to put every string concatenation on its own line.

https://github.com/llvm/llvm-project/pull/181347