[libcxx-commits] [libcxxabi] [libcxxabi][ItaniumDemangle] Demangle explicitly named object parameters (PR #72881)

[Emma Pilkington via libcxx-commits]

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@@ -890,6 +890,29 @@ class DynamicExceptionSpec : public Node {
   }
 };
 
+/// Represents the explicitly named object parameter.
+/// E.g.,
+/// \code{.cpp}
+///   struct Foo {
+///     void bar(this Foo && self);
+///   };
+/// \endcode
+class ExplicitObjectParameter final : public Node {
+  Node *Base;
+
+public:
+  ExplicitObjectParameter(Node *Base_)
+      : Node(KExplicitObjectParameter, Cache::Yes), Base(Base_) {
+    assert(Base != nullptr);
+  }
+
+  template <typename Fn> void match(Fn F) const { F(Base); }
+
+  void printLeft(OutputBuffer &OB) const override { OB += "this "; }
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epilk wrote:

I think you don't need to overload printRight, you should just be able to do: `OB += "this"; Base->print(OB);` here in printLeft (in which case you can remove the Cache::Yes just above).

https://github.com/llvm/llvm-project/pull/72881