From: Alex Lorenz <arphaman@gmail.com>
Date: Tue, 3 Jan 2017 12:08:40 +0000 (+0000)
Subject: Handle UsingDecl and UsingShadowDecl in DeclContextPrinter
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=550e0fa7a8a01e4cb76e492ef2c3afdb17f4a764;p=clang

Handle UsingDecl and UsingShadowDecl in DeclContextPrinter

This commit fixes a crash that occurs when -print-decl-contexts AST consumer
tries to print an unhandled declaration.

rdar://19467234

Differential Revision: https://reviews.llvm.org/D26964


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@290881 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Frontend/ASTConsumers.cpp b/lib/Frontend/ASTConsumers.cpp
index 329f15fbef..2bb78b3d30 100644
--- a/lib/Frontend/ASTConsumers.cpp
+++ b/lib/Frontend/ASTConsumers.cpp
@@ -485,6 +485,14 @@ void DeclContextPrinter::PrintDeclContext(const DeclContext* DC,
       Out << "\n";
       break;
     }
+    case Decl::Using: {
+      Out << "<using> " << *cast<UsingDecl>(I) << "\n";
+      break;
+    }
+    case Decl::UsingShadow: {
+      Out << "<using shadow> " << *cast<UsingShadowDecl>(I) << "\n";
+      break;
+    }
     default:
       Out << "DeclKind: " << DK << '"' << I << "\"\n";
       llvm_unreachable("decl unhandled");
diff --git a/test/Coverage/cxx-language-features.inc b/test/Coverage/cxx-language-features.inc
index 18e28e0fab..0652d6980a 100644
--- a/test/Coverage/cxx-language-features.inc
+++ b/test/Coverage/cxx-language-features.inc
@@ -33,3 +33,11 @@ struct FriendlyStruct {
 };
 
 struct FriendedStruct { };
+
+// Using declaration
+namespace provider {
+  void foo();
+}
+namespace user {
+  using provider::foo;
+}