P0217R3: Parsing support and framework for AST representation of C++1z

decomposition declarations.

There are a couple of things in the wording that seem strange here:
decomposition declarations are permitted at namespace scope (which we partially
support here) and they are permitted as the declaration in a template (which we
reject).

llvm-svn: 276492

1 files changed, 7 insertions, 0 deletions

diff --git a/clang/lib/AST/ASTDumper.cpp b/clang/lib/AST/ASTDumper.cpp
index 872ba356a9b..1a4207f5120 100644
--- a/clang/lib/AST/ASTDumper.cpp
+++ b/clang/lib/AST/ASTDumper.cpp
@@ -428,6 +428,7 @@ namespace  {
     void VisitFunctionDecl(const FunctionDecl *D);
     void VisitFieldDecl(const FieldDecl *D);
     void VisitVarDecl(const VarDecl *D);
+    void VisitDecompositionDecl(const DecompositionDecl *D);
     void VisitFileScopeAsmDecl(const FileScopeAsmDecl *D);
     void VisitImportDecl(const ImportDecl *D);
     void VisitPragmaCommentDecl(const PragmaCommentDecl *D);
@@ -1217,6 +1218,12 @@ void ASTDumper::VisitVarDecl(const VarDecl *D) {
   }
 }
 
+void ASTDumper::VisitDecompositionDecl(const DecompositionDecl *D) {
+  VisitVarDecl(D);
+  for (auto *B : D->bindings())
+    dumpDecl(B);
+}
+
 void ASTDumper::VisitFileScopeAsmDecl(const FileScopeAsmDecl *D) {
   dumpStmt(D->getAsmString());
 }