[PATCH] D38755: Fixed crash during indexing default template template param

[Jan Korous via Phabricator via cfe-commits]

jkorous-apple created this revision.

fix + testcase


https://reviews.llvm.org/D38755

Files:
  lib/Index/IndexDecl.cpp
  test/Index/index-template-template-param.cpp


Index: test/Index/index-template-template-param.cpp
===================================================================
--- /dev/null
+++ test/Index/index-template-template-param.cpp
@@ -0,0 +1,7 @@
+// RUN: c-index-test -index-file %s -x objective-c++ | FileCheck %s
+
+template <typename T> class Template1 {};
+
+template <template <class> class TMPL = Template1> class Template2;
+
+// CHECK: [indexEntityReference]: kind: c++-class-template | name: Template1 |
Index: lib/Index/IndexDecl.cpp
===================================================================
--- lib/Index/IndexDecl.cpp
+++ lib/Index/IndexDecl.cpp
@@ -666,7 +666,6 @@
   }
 
   bool VisitTemplateDecl(const TemplateDecl *D) {
-    // FIXME: Template parameters.
 
     // Index the default values for the template parameters.
     const NamedDecl *Parent = D->getTemplatedDecl();
@@ -683,7 +682,7 @@
         } else if (const auto *TTPD = dyn_cast<TemplateTemplateParmDecl>(TP)) {
           if (TTPD->hasDefaultArgument())
             handleTemplateArgumentLoc(TTPD->getDefaultArgument(), Parent,
-                                      /*DC=*/nullptr);
+                                      TP->getLexicalDeclContext());
         }
       }
     }


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