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, 4 insertions, 1 deletions

diff --git a/clang/lib/CodeGen/CGDecl.cpp b/clang/lib/CodeGen/CGDecl.cpp
index 89407cd70c3..e0cb07b98dd 100644
--- a/clang/lib/CodeGen/CGDecl.cpp
+++ b/clang/lib/CodeGen/CGDecl.cpp
@@ -114,12 +114,15 @@ void CodeGenFunction::EmitDecl(const Decl &D) {
     if (CGDebugInfo *DI = getDebugInfo())
       DI->EmitUsingDirective(cast<UsingDirectiveDecl>(D));
     return;
-  case Decl::Var: {
+  case Decl::Var:
+  case Decl::Decomposition: {
     const VarDecl &VD = cast<VarDecl>(D);
     assert(VD.isLocalVarDecl() &&
            "Should not see file-scope variables inside a function!");
     return EmitVarDecl(VD);
   }
+  case Decl::Binding:
+    return CGM.ErrorUnsupported(&D, "structured binding");
 
   case Decl::OMPDeclareReduction:
     return CGM.EmitOMPDeclareReduction(cast<OMPDeclareReductionDecl>(&D), this);