From 0875721452b09e39d9ca8065001dd71d22fd59a7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonathan=20M=C3=BCller?= <git@foonathan.net>
Date: Mon, 30 Oct 2017 22:25:12 +0100
Subject: [PATCH] Handle parsing of extern templates

---
 src/libclang/class_parser.cpp | 4 ++++
 test/cpp_class_template.cpp   | 8 +++++++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/libclang/class_parser.cpp b/src/libclang/class_parser.cpp
index 9c5ec73..fde0a95 100644
--- a/src/libclang/class_parser.cpp
+++ b/src/libclang/class_parser.cpp
@@ -24,6 +24,10 @@ namespace
 
         detail::skip_if(stream, "friend");
 
+        if (detail::skip_if(stream, "extern"))
+            // extern template
+            detail::skip(stream, "template");
+
         switch (kind)
         {
         case CXCursor_ClassDecl:
diff --git a/test/cpp_class_template.cpp b/test/cpp_class_template.cpp
index 427f4a9..ef39922 100644
--- a/test/cpp_class_template.cpp
+++ b/test/cpp_class_template.cpp
@@ -92,6 +92,12 @@ class a<T*> {};
 /// };
 template <typename T>
 struct b<0, T> {};
+
+// extern template for good measure
+// currently not really supported but parsing must not fail
+/// template<>
+/// class a<int>;
+extern template class a<int>;
 )";
 
     cpp_entity_index idx;
@@ -263,5 +269,5 @@ struct b<0, T> {};
         else
             REQUIRE(false);
     });
-    REQUIRE(count == 4u);
+    REQUIRE(count == 5u);
 }