rZhBoYao marked an inline comment as done.
rZhBoYao added inline comments.

================
Comment at: clang/include/clang/Sema/Sema.h:2899-2909
+    /// C++ [dcl.fct.def.general]p1
+    /// function-body:
+    ///   = delete ;
+    ///   = default ;
+    Delete,
+    Default,
+
----------------
ChuanqiXu wrote:
> Agree to @erichkeane 
With all due respect, this code suggestion doesn't make any sense to me. My 
best guess is @ChuanqiXu was thinking the order specified by the grammar as 
noted in [[ https://eel.is/c++draft/dcl.fct.def.general#nt:function-body | 
dcl.fct.def.general p1 ]]. Even if that was the case, `CompoundStmt` is not 
quite right either. Also, differentiating `ctor-initializer[opt] 
compound-statement` and `function-try-block` is meaningless here, hence the 
name `Other`.

I adopted the same order as to how `Parser::ParseFunctionDefinition` has always 
been parsing `function-body`. The order is not significant in any meaningful 
way as each of the 4 grammar productions of `function-body` is VERY different 
and mutually exclusive. Putting `Delete` and `Default` upfront not only 
emphasizes the "specialness" of them but also conveys how we handle 
`function-body`.

What say you, @erichkeane ?


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D122981/new/

https://reviews.llvm.org/D122981

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