[Lldb-commits] [lldb] r319516 - ClangASTContext::ParseClassTemplateDecl doesn't always succeed.

[Jim Ingham via lldb-commits]

Author: jingham
Date: Thu Nov 30 19:41:30 2017
New Revision: 319516

URL: http://llvm.org/viewvc/llvm-project?rev=319516&view=rev
Log:
ClangASTContext::ParseClassTemplateDecl doesn't always succeed.
When it does, it returns a NULL ClassTemplateDecl.  Don't use 
it if it is NULL...

<rdar://problem/35672107>

Modified:
    lldb/trunk/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp

Modified: lldb/trunk/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp?rev=319516&r1=319515&r2=319516&view=diff
==============================================================================
--- lldb/trunk/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp (original)
+++ lldb/trunk/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp Thu Nov 30 19:41:30 2017
@@ -786,7 +786,17 @@ TypeSP DWARFASTParserClang::ParseTypeFro
                   m_ast.ParseClassTemplateDecl(decl_ctx, accessibility,
                                                type_name_cstr, tag_decl_kind,
                                                template_param_infos);
-
+              if (!class_template_decl) {
+                if (log) {
+                  dwarf->GetObjectFile()->GetModule()->LogMessage(
+                    log, "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" "
+                         "clang::ClassTemplateDecl failed to return a decl.",
+                    static_cast<void *>(this), die.GetOffset(),
+                    DW_TAG_value_to_name(tag), type_name_cstr);
+                }
+                return TypeSP();
+              }
+                
               clang::ClassTemplateSpecializationDecl
                   *class_specialization_decl =
                       m_ast.CreateClassTemplateSpecializationDecl(