Fixed handling of template methods processing.

src/Parser/Parser.cpp

@@ -580,6 +580,11 @@ CppSharp::AST::Class^ Parser::WalkRecordCXX(clang::CXXRecordDecl* Record)
         {
             auto MD = cast<CXXMethodDecl>(D);
             auto Method = WalkMethodCXX(MD);
+            // Some implicit class template methods do not seem to provide type source
+            // information which causes us to not be able to properly walk through the
+            // qualified return type. In this case, do not add them to the AST.
+            if (!Method->ReturnType.Type)
+                continue;
             Method->AccessDecl = AccessDecl;
             RC->Methods->Add(Method);
             HandleComments(MD, Method);
@@ -1465,20 +1470,32 @@ void Parser::WalkFunction(clang::FunctionDecl* FD, CppSharp::AST::Function^ F,
     TypeLoc RTL;
     if (auto TSI = FD->getTypeSourceInfo())
     {
+        auto TL = TSI->getTypeLoc();
+        if (!TL)
+            TL.isNull();
+
         FunctionTypeLoc FTL = TSI->getTypeLoc().getAs<FunctionTypeLoc>();
-        RTL = FTL.getResultLoc();
+        if (FTL)
+            RTL = FTL.getResultLoc();
 
         auto &SM = C->getSourceManager();
         auto headStartLoc = GetDeclStartLocation(C.get(), FD);
-        auto headEndLoc = SM.getExpansionLoc(FTL.getLParenLoc());
-        auto headRange = clang::SourceRange(headStartLoc, headEndLoc);
+        if (FTL)
+        {
+            auto headEndLoc = SM.getExpansionLoc(FTL.getLParenLoc());
+            auto headRange = clang::SourceRange(headStartLoc, headEndLoc);
 
-        HandlePreprocessedEntities(F, headRange, CppSharp::AST::MacroLocation::FunctionHead);
-        HandlePreprocessedEntities(F, FTL.getParensRange(), CppSharp::AST::MacroLocation::FunctionParameters);
-        //auto bodyRange = clang::SourceRange(FTL.getRParenLoc(), FD->getLocEnd());
-        //HandlePreprocessedEntities(F, bodyRange, CppSharp::AST::MacroLocation::FunctionBody);
+            HandlePreprocessedEntities(F, headRange, CppSharp::AST::MacroLocation::FunctionHead);
+            HandlePreprocessedEntities(F, FTL.getParensRange(), CppSharp::AST::MacroLocation::FunctionParameters);
+            //auto bodyRange = clang::SourceRange(FTL.getRParenLoc(), FD->getLocEnd());
+            //HandlePreprocessedEntities(F, bodyRange, CppSharp::AST::MacroLocation::FunctionBody);
+        }
     }
 
+    // See processing of CXXMethod in WalkRecordCXX for why this is needed.
+    if (!RTL)
+        return;
+
     F->ReturnType = GetQualifiedType(FD->getResultType(),
         WalkType(FD->getResultType(), &RTL));