[clang] [clang-tools-extra] [llvm] [clang]: reflection operator parsing for global namespace and primitive types (PR #164692)

[via llvm-commits]

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@@ -5501,6 +5501,60 @@ class BuiltinBitCastExpr final
   }
 };
 
+/// Represents a C++26 reflect expression [expr.reflect]. The operand of the
+/// expression is either:
+///  - :: (global namespace),
+///  - a reflection-name,
+///  - a type-id, or
+///  - an id-expression.
+class CXXReflectExpr : public Expr {
+
+  // Source locations.
+  SourceLocation OperatorLoc;
+  SourceRange OperandRange;
+
+  CXXReflectExpr(const ASTContext &C, QualType T, QualType Ty);
+  CXXReflectExpr(const ASTContext &C, QualType T, Decl *Arg);
+  CXXReflectExpr(EmptyShell Empty);
+
+public:
+  static CXXReflectExpr *Create(ASTContext &C, SourceLocation OperatorLoc,
+                                SourceLocation ArgLoc, QualType Operand);
+
+  static CXXReflectExpr *Create(ASTContext &C, SourceLocation OperatorLoc,
+                                SourceLocation OperandLoc, Decl *Operand);
+
+  static CXXReflectExpr *CreateEmpty(ASTContext &C);
+
+  SourceLocation getBeginLoc() const LLVM_READONLY { return OperatorLoc; }
+  SourceLocation getEndLoc() const LLVM_READONLY {
+    return OperandRange.getEnd();
+  }
+  SourceRange getSourceRange() const {
+    return SourceRange(getBeginLoc(), getEndLoc());
+  }
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Sirraide wrote:

```suggestion
```
No need to add this; that’s already what it does by default.

https://github.com/llvm/llvm-project/pull/164692