From 66363787b47e0a792867dfb24b0d753a82e68eee Mon Sep 17 00:00:00 2001
From: Dimitar Dobrev <dpldobrev@yahoo.com>
Date: Wed, 29 Jan 2014 23:32:09 +0200
Subject: [PATCH] Stubbed support for pack expansions to avoid crashes in
 certain cases such as variadic templates.

Signed-off-by: Dimitar Dobrev <dpldobrev@yahoo.com>
---
 src/AST/ASTVisitor.cs                                    | 5 +++++
 src/AST/Type.cs                                          | 9 +++++++++
 src/Generator/Generators/CLI/CLITypePrinter.cs           | 5 +++++
 src/Generator/Generators/CSharp/CSharpTypePrinter.cs     | 5 +++++
 .../Passes/CheckVirtualOverrideReturnCovariance.cs       | 5 +++++
 src/Generator/Types/CppTypePrinter.cs                    | 5 +++++
 src/Parser/Parser.cpp                                    | 5 +++--
 7 files changed, 37 insertions(+), 2 deletions(-)

diff --git a/src/AST/ASTVisitor.cs b/src/AST/ASTVisitor.cs
index e2d3e1f3..a7387c5a 100644
--- a/src/AST/ASTVisitor.cs
+++ b/src/AST/ASTVisitor.cs
@@ -217,6 +217,11 @@ namespace CppSharp.AST
             return true;
         }
 
+        public bool VisitPackExpansionType(PackExpansionType packExpansionType, TypeQualifiers quals)
+        {
+            return true;
+        }
+
         public virtual bool VisitPrimitiveType(PrimitiveType type, TypeQualifiers quals)
         {
             return true;
diff --git a/src/AST/Type.cs b/src/AST/Type.cs
index f41b3ca1..b81d6de0 100644
--- a/src/AST/Type.cs
+++ b/src/AST/Type.cs
@@ -786,6 +786,14 @@ namespace CppSharp.AST
         }
     }
 
+    public class PackExpansionType : Type
+    {
+        public override T Visit<T>(ITypeVisitor<T> visitor, TypeQualifiers quals = new TypeQualifiers())
+        {
+            return visitor.VisitPackExpansionType(this, quals);
+        }
+    }
+
     #region Primitives
 
     /// <summary>
@@ -891,6 +899,7 @@ namespace CppSharp.AST
             TypeQualifiers quals);
         T VisitDependentNameType(DependentNameType dependent,
             TypeQualifiers quals);
+        T VisitPackExpansionType(PackExpansionType packExpansionType, TypeQualifiers quals);
         T VisitCILType(CILType type, TypeQualifiers quals);
     }
 }
\ No newline at end of file
diff --git a/src/Generator/Generators/CLI/CLITypePrinter.cs b/src/Generator/Generators/CLI/CLITypePrinter.cs
index 5b6815b1..bb782510 100644
--- a/src/Generator/Generators/CLI/CLITypePrinter.cs
+++ b/src/Generator/Generators/CLI/CLITypePrinter.cs
@@ -259,6 +259,11 @@ namespace CppSharp.Generators.CLI
             throw new NotImplementedException();
         }
 
+        public string VisitPackExpansionType(PackExpansionType packExpansionType, TypeQualifiers quals)
+        {
+            return string.Empty;
+        }
+
         public string VisitCILType(CILType type, TypeQualifiers quals)
         {
             return type.Type.FullName.Replace(".", "::") + "^";
diff --git a/src/Generator/Generators/CSharp/CSharpTypePrinter.cs b/src/Generator/Generators/CSharp/CSharpTypePrinter.cs
index fb4487a9..2c839dde 100644
--- a/src/Generator/Generators/CSharp/CSharpTypePrinter.cs
+++ b/src/Generator/Generators/CSharp/CSharpTypePrinter.cs
@@ -348,6 +348,11 @@ namespace CppSharp.Generators.CSharp
             throw new NotImplementedException();
         }
 
+        public CSharpTypePrinterResult VisitPackExpansionType(PackExpansionType packExpansionType, TypeQualifiers quals)
+        {
+            return string.Empty;
+        }
+
         public CSharpTypePrinterResult VisitCILType(CILType type, TypeQualifiers quals)
         {
             return type.Type.FullName;
diff --git a/src/Generator/Passes/CheckVirtualOverrideReturnCovariance.cs b/src/Generator/Passes/CheckVirtualOverrideReturnCovariance.cs
index aa0f8a89..05ad5520 100644
--- a/src/Generator/Passes/CheckVirtualOverrideReturnCovariance.cs
+++ b/src/Generator/Passes/CheckVirtualOverrideReturnCovariance.cs
@@ -151,6 +151,11 @@ namespace CppSharp.Passes
             return false;
         }
 
+        public bool VisitPackExpansionType(PackExpansionType packExpansionType, TypeQualifiers quals)
+        {
+            return true;
+        }
+
         public bool VisitCILType(CILType type, TypeQualifiers quals)
         {
             return false;
diff --git a/src/Generator/Types/CppTypePrinter.cs b/src/Generator/Types/CppTypePrinter.cs
index f6845f00..40f00b82 100644
--- a/src/Generator/Types/CppTypePrinter.cs
+++ b/src/Generator/Types/CppTypePrinter.cs
@@ -178,6 +178,11 @@ namespace CppSharp.Types
             throw new System.NotImplementedException();
         }
 
+        public string VisitPackExpansionType(PackExpansionType packExpansionType, TypeQualifiers quals)
+        {
+            return string.Empty;
+        }
+
         public string VisitCILType(CILType type, TypeQualifiers quals)
         {
             return string.Empty;
diff --git a/src/Parser/Parser.cpp b/src/Parser/Parser.cpp
index bc0e1ec8..e4a5d772 100644
--- a/src/Parser/Parser.cpp
+++ b/src/Parser/Parser.cpp
@@ -1653,8 +1653,9 @@ CppSharp::AST::Type^ Parser::WalkType(clang::QualType QualType, clang::TypeLoc*
     }
     case Type::PackExpansion:
     {
-        // Ignored.
-        return nullptr;
+        // TODO: stubbed
+        Ty = gcnew CppSharp::AST::PackExpansionType();
+        break;
     }
     default:
     {