gccrs: Add get_pattern_kind to Pattern

gcc/rust/ChangeLog:

	* ast/rust-ast.h: Add Kind Enum to
	Pattern.
	* ast/rust-macro.h: Add get_pattern_kind().
	* ast/rust-path.h: Likewise.
	* ast/rust-pattern.h: Likewise.

Signed-off-by: 0xn4utilus <gyanendrabanjare8@gmail.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/gcc/rust/ast/rust-ast.h b/gcc/rust/ast/rust-ast.h
index 92faaf2..edf726b 100644
--- a/gcc/rust/ast/rust-ast.h
+++ b/gcc/rust/ast/rust-ast.h
@@ -1360,12 +1360,32 @@ protected:
 class Pattern : public Visitable
 {
 public:
+  enum class Kind
+  {
+    Literal,
+    Identifier,
+    Wildcard,
+    Rest,
+    Range,
+    Reference,
+    Struct,
+    TupleStruct,
+    Tuple,
+    Grouped,
+    Slice,
+    Alt,
+    Path,
+    MacroInvocation,
+  };
+
   // Unique pointer custom clone function
   std::unique_ptr<Pattern> clone_pattern () const
   {
     return std::unique_ptr<Pattern> (clone_pattern_impl ());
   }
 
+  virtual Kind get_pattern_kind () = 0;
+
   // possible virtual methods: is_refutable()
 
   virtual ~Pattern () {}