[clang] 0f4cc64 - [SyntaxTree] Provide `List::classof`

[Eduardo Caldas via cfe-commits]

Author: Eduardo Caldas
Date: 2020-09-14T10:35:41Z
New Revision: 0f4cc64fd747fbb33aeccfaccb8873762d2511f2

URL: https://github.com/llvm/llvm-project/commit/0f4cc64fd747fbb33aeccfaccb8873762d2511f2
DIFF: https://github.com/llvm/llvm-project/commit/0f4cc64fd747fbb33aeccfaccb8873762d2511f2.diff

LOG: [SyntaxTree] Provide `List::classof`

Differential Revision: https://reviews.llvm.org/D87599

Added: 
    

Modified: 
    clang/include/clang/Tooling/Syntax/Tree.h
    clang/lib/Tooling/Syntax/Tree.cpp

Removed: 
    


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diff  --git a/clang/include/clang/Tooling/Syntax/Tree.h b/clang/include/clang/Tooling/Syntax/Tree.h
index b49a09344c0f..5a09d4564969 100644
--- a/clang/include/clang/Tooling/Syntax/Tree.h
+++ b/clang/include/clang/Tooling/Syntax/Tree.h
@@ -213,6 +213,7 @@ class List : public Tree {
   };
 
   using Tree::Tree;
+  static bool classof(const Node *N);
   /// Returns the elements and corresponding delimiters. Missing elements
   /// and delimiters are represented as null pointers.
   ///

diff  --git a/clang/lib/Tooling/Syntax/Tree.cpp b/clang/lib/Tooling/Syntax/Tree.cpp
index 2bff159696c1..1c705f6fd7cf 100644
--- a/clang/lib/Tooling/Syntax/Tree.cpp
+++ b/clang/lib/Tooling/Syntax/Tree.cpp
@@ -273,6 +273,17 @@ syntax::Node *syntax::Tree::findChild(NodeRole R) {
   return nullptr;
 }
 
+bool classof(const syntax::Node *N) {
+  switch (N->getKind()) {
+  case syntax::NodeKind::NestedNameSpecifier:
+  case syntax::NodeKind::CallArguments:
+  case syntax::NodeKind::ParameterDeclarationList:
+    return true;
+  default:
+    return false;
+  }
+}
+
 std::vector<syntax::List::ElementAndDelimiter<syntax::Node>>
 syntax::List::getElementsAsNodesAndDelimiters() {
   if (!getFirstChild())