Added processing of type aliases.

Signed-off-by: Dimitar Dobrev <dpldobrev@protonmail.com>

src/AST/ASTContext.cs

@@ -91,7 +91,7 @@ namespace CppSharp.AST
         }
 
         /// Finds an existing typedef in the library modules.
-        public IEnumerable<TypedefDecl> FindTypedef(string name)
+        public IEnumerable<TypedefNameDecl> FindTypedef(string name)
         {
             return TranslationUnits.Select(module => module.FindTypedef(name))
                 .Where(type => type != null);

src/AST/ASTVisitor.cs

@@ -180,7 +180,7 @@ namespace CppSharp.AST
                 }
             }
 
-            if (template.IsDependent)
+            if (template.IsDependent && template.Template != null)
                 return template.Template.Visit(this);
 
             var specialization = template.GetClassTemplateSpecialization();

src/AST/Namespace.cs

@@ -39,9 +39,9 @@ namespace CppSharp.AST
             get { return new DeclIterator<Template>(Declarations); }
         }
 
-        public DeclIterator<TypedefDecl> Typedefs
+        public DeclIterator<TypedefNameDecl> Typedefs
         {
-            get { return new DeclIterator<TypedefDecl>(Declarations); }
+            get { return new DeclIterator<TypedefNameDecl>(Declarations); }
         }
 
         public DeclIterator<Variable> Variables
@@ -356,7 +356,7 @@ namespace CppSharp.AST
                 .FirstOrDefault(t => t.USR == usr);
         }
 
-        public TypedefDecl FindTypedef(string name, bool createDecl = false)
+        public TypedefNameDecl FindTypedef(string name, bool createDecl = false)
         {
             var entries = name.Split(new string[] { "::" },
                 StringSplitOptions.RemoveEmptyEntries).ToList();
@@ -367,7 +367,7 @@ namespace CppSharp.AST
 
                 if (typeDef == null && createDecl)
                 {
-                    typeDef = new TypedefDecl() { Name = name, Namespace = this };
+                    typeDef = new TypedefDecl { Name = name, Namespace = this };
                     Typedefs.Add(typeDef);
                 }
 

src/Generator.Tests/QueryHelpers.cs

@@ -25,7 +25,7 @@ namespace CppSharp.Generator.Tests
             return context.FindEnum(name).First();
         }
 
-        public static TypedefDecl Typedef(this ASTContext context, string name)
+        public static TypedefNameDecl Typedef(this ASTContext context, string name)
         {
             return context.FindTypedef(name).First();
         }

src/Generator/Generators/CLI/CLIHeaders.cs

@@ -754,7 +754,7 @@ namespace CppSharp.Generators.CLI
             }
         }
 
-        public bool GenerateTypedef(TypedefDecl typedef)
+        public bool GenerateTypedef(TypedefNameDecl typedef)
         {
             if (!typedef.IsGenerated)
                 return false;

src/Generator/Generators/CSharp/CSharpSources.cs

@@ -3004,7 +3004,7 @@ namespace CppSharp.Generators.CSharp
 
         #endregion
 
-        public bool GenerateTypedef(TypedefDecl typedef)
+        public bool GenerateTypedef(TypedefNameDecl typedef)
         {
             if (!typedef.IsGenerated)
                 return false;

src/Parser/ASTConverter.cs

@@ -976,6 +976,13 @@ namespace CppSharp
                 _ctx.Typedefs.Add(_decl);
             }
 
+            for (uint i = 0; i < ctx.TypeAliasesCount; ++i)
+            {
+                var decl = ctx.getTypeAliases(i);
+                var _decl = Visit(decl) as AST.TypeAlias;
+                _ctx.Typedefs.Add(_decl);
+            }
+
             for (uint i = 0; i < ctx.VariablesCount; ++i)
             {
                 var decl = ctx.getVariables(i);

tests/CSharp/CSharp.h

@@ -1025,3 +1025,8 @@ public:
     const wchar_t* unicodeConst;
     wchar_t* unicode;
 };
+
+void decltypeFunctionPointer();
+
+using funcPtr = decltype(&decltypeFunctionPointer);
+void usesDecltypeFunctionPointer(funcPtr func);