================
@@ -330,35 +377,46 @@ AST_POLYMORPHIC_MATCHER_P(isExpandedFromMacro,
/// Matches declarations.
///
-/// Examples matches \c X, \c C, and the friend declaration inside \c C;
+/// Given
/// \code
/// void X();
/// class C {
-/// friend X;
+/// friend void X();
/// };
/// \endcode
+/// \compile_args{-std=c++}
+/// The matcher \matcher{decl()}
+/// matches \match{void X()}, \match{type=name;count=2$C}
+/// and \match{count=2$friend void X()}.
----------------
5chmidti wrote:
```
|-FunctionDecl <line:1:1, col:8> col:6 X 'void ()'
`-CXXRecordDecl <line:2:1, line:4:1> line:2:7 class C definition
|-DefinitionData pass_in_registers empty aggregate standard_layout
trivially_copyable pod trivial literal has_constexpr_non_copy_move_ctor
can_const_default_init
| |-DefaultConstructor exists trivial constexpr needs_implicit
defaulted_is_constexpr
| |-CopyConstructor simple trivial has_const_param needs_implicit
implicit_has_const_param
| |-MoveConstructor exists simple trivial needs_implicit
| |-CopyAssignment simple trivial has_const_param needs_implicit
implicit_has_const_param
| |-MoveAssignment exists simple trivial needs_implicit
| `-Destructor simple irrelevant trivial needs_implicit
|-CXXRecordDecl <col:1, col:7> col:7 implicit class C
`-FriendDecl <line:3:5, col:19> col:17
`-FunctionDecl parent 0xf23a388 prev 0xf284370 <col:5, col:19> col:17
friend X 'void ()'
```
> Can you explain `\match{type=name;count=2$C}`?
That is the `implicit class C` in the AST above. I couldn't access it from the
top-level `C` and I couldn't find a way from the `implicit class C` back to the
top-level one, so I don't know how to call it. I thought it would be a decl but
not a definition, however, `getDefinition` returns a `nullptr` for the
`implicit class C`.
> should we add a comment explaining that other match?
Certainly. I'll read the documentation again to see if there are more cases
like this that could be improved as well.
https://github.com/llvm/llvm-project/pull/94248
_______________________________________________
llvm-branch-commits mailing list
llvm-branch-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
