From 81475d7fc881a5cdaa2e2a1e61ad335a52549093 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Fri, 11 Apr 2014 14:08:28 -0400
Subject: Output: Traverse extern "C" namespace members

Teach AddDeclContextMembers to recurse on LinkageSpecDecl members.
---
 src/Output.cxx                                            |  5 +++++
 test/CMakeLists.txt                                       |  1 +
 test/expect/gccxml.any.Namespace-extern-C-members.xml.txt | 11 +++++++++++
 test/input/Namespace-extern-C-members.cxx                 |  6 ++++++
 4 files changed, 23 insertions(+)
 create mode 100644 test/expect/gccxml.any.Namespace-extern-C-members.xml.txt
 create mode 100644 test/input/Namespace-extern-C-members.cxx

diff --git a/src/Output.cxx b/src/Output.cxx
index 30bdeb5..0a3c6f4 100644
--- a/src/Output.cxx
+++ b/src/Output.cxx
@@ -625,6 +625,11 @@ void ASTVisitor::AddDeclContextMembers(clang::DeclContext const* dc,
         static_cast<clang::FunctionTemplateDecl const*>(d), &emitted);
       continue;
     } break;
+    case clang::Decl::LinkageSpec: {
+      this->AddDeclContextMembers(
+        static_cast<clang::LinkageSpecDecl const*>(d), emitted);
+      continue;
+    } break;
     case clang::Decl::Using: {
       continue;
     } break;
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 40d05e8..27b2972 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -162,6 +162,7 @@ castxml_test_gccxml(Namespace-Class-partial-template-members)
 castxml_test_gccxml(Namespace-Class-template-members)
 castxml_test_gccxml(Namespace-Function-template-members)
 castxml_test_gccxml(Namespace-empty)
+castxml_test_gccxml(Namespace-extern-C-members)
 castxml_test_gccxml(OffsetType)
 castxml_test_gccxml(OffsetType-cv)
 castxml_test_gccxml(OperatorFunction)
diff --git a/test/expect/gccxml.any.Namespace-extern-C-members.xml.txt b/test/expect/gccxml.any.Namespace-extern-C-members.xml.txt
new file mode 100644
index 0000000..33f04f3
--- /dev/null
+++ b/test/expect/gccxml.any.Namespace-extern-C-members.xml.txt
@@ -0,0 +1,11 @@
+^<\?xml version="1.0"\?>
+<GCC_XML[^>]*>
+  <Namespace id="_1" name="start" context="_2" members="_3 _4"/>
+  <Typedef id="_3" name="Int" type="_5" context="_1" location="f1:3" file="f1" line="3"/>
+  <Function id="_4" name="function" returns="_3" context="_1" location="f1:4" file="f1" line="4">
+    <Argument type="_3" location="f1:4" file="f1" line="4"/>
+  </Function>
+  <FundamentalType id="_5" name="int"/>
+  <Namespace id="_2" name="::"/>
+  <File id="f1" name=".*/test/input/Namespace-extern-C-members.cxx"/>
+</GCC_XML>$
diff --git a/test/input/Namespace-extern-C-members.cxx b/test/input/Namespace-extern-C-members.cxx
new file mode 100644
index 0000000..debf987
--- /dev/null
+++ b/test/input/Namespace-extern-C-members.cxx
@@ -0,0 +1,6 @@
+namespace start {
+  extern "C" {
+    typedef int Int;
+    Int function(Int);
+  }
+}
-- 
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