Fixed some bugs; added support for type references to TypeSystemConvertVisitor.

ICSharpCode.NRefactory.Tests/CSharp/Resolver/SimpleNameLookupTests.cs

@@ -175,5 +175,42 @@ namespace ICSharpCode.NRefactory.CSharp.Resolver
 			
 			Assert.AreEqual("System.String", result.Type.FullName);
 		}
+		
+		[Test]
+		public void UnknownTypeTest()
+		{
+			string program = @"class A {
+	void Method($StringBuilder$ b) {
+	}
+}
+";
+			UnknownIdentifierResolveResult result = Resolve<UnknownIdentifierResolveResult>(program);
+			Assert.AreEqual("StringBuilder", result.Identifier);
+			
+			Assert.AreSame(SharedTypes.UnknownType, result.Type);
+		}
+		
+		[Test, Ignore("not yet implemented (depends on distuishing types and expressions)")]
+		public void PropertyNameAmbiguousWithTypeName()
+		{
+			string program = @"class A {
+	public Color Color { get; set; }
+	
+	void Method() {
+		$
+	}
+}
+class Color { public static readonly Color Empty = null; }
+";
+			TypeResolveResult trr = Resolve<TypeResolveResult>(program.Replace("$", "$Color$ c;"));
+			Assert.AreEqual("Color", trr.Type.Name);
+			
+			MemberResolveResult mrr = Resolve<MemberResolveResult>(program.Replace("$", "x = $Color$;"));
+			Assert.AreEqual("Color", mrr.Member.Name);
+			
+			Resolve<MemberResolveResult>(program.Replace("$", "$Color$ = Color.Empty;"));
+			Resolve<TypeResolveResult>(program.Replace("$", "Color = $Color$.Empty;"));
+			Resolve<MemberResolveResult>(program.Replace("$", "x = $Color$.ToString();"));
+		}
 	}
 }

ICSharpCode.NRefactory/CSharp/Dom/ComposedType.cs

@@ -74,7 +74,7 @@ namespace ICSharpCode.NRefactory.CSharp
 			b.Append('*', this.PointerRank);
 			foreach (var arraySpecifier in this.ArraySpecifiers) {
 				b.Append('[');
-				b.Append(',', arraySpecifier.Rank);
+				b.Append(',', arraySpecifier.Dimensions - 1);
 				b.Append(']');
 			}
 			return b.ToString();
@@ -92,8 +92,8 @@ namespace ICSharpCode.NRefactory.CSharp
 				get { return (CSharpTokenNode)GetChildByRole (Roles.LBracket); }
 			}
 			
-			public int Rank {
-				get { return GetChildrenByRole(Roles.Comma).Count(); }
+			public int Dimensions {
+				get { return 1 + GetChildrenByRole(Roles.Comma).Count(); }
 			}
 			
 			public CSharpTokenNode RBracket {

ICSharpCode.NRefactory/CSharp/Dom/TypeMembers/AbstractMember.cs

@@ -1,4 +1,4 @@
-// 
+// 
 // AbstractMember.cs
 //  
 // Author:
@@ -28,7 +28,7 @@ namespace ICSharpCode.NRefactory.CSharp
 {
 	public abstract class AbstractMember : AbstractMemberBase
 	{
-		const int PrivateImplementationTypeRole = 100;
+		public const int PrivateImplementationTypeRole = 100;
 		
 		public DomNode ReturnType {
 			get {

ICSharpCode.NRefactory/CSharp/Dom/TypeMembers/EventDeclaration.cs

@@ -1,4 +1,4 @@
-// 
+// 
 // EventDeclaration.cs
 //  
 // Author:
@@ -28,8 +28,9 @@ namespace ICSharpCode.NRefactory.CSharp
 {
 	public class EventDeclaration : AbstractMember
 	{
-		public const int EventAddRole = 100;
-		public const int EventRemoveRole = 101;
+		// AbstractMember.PrivateImplementationTypeRole is 100
+		public const int EventAddRole = 101;
+		public const int EventRemoveRole = 102;
 		
 		public CSharpTokenNode LBrace {
 			get {

ICSharpCode.NRefactory/CSharp/Dom/TypeMembers/OperatorDeclaration.cs

@@ -1,4 +1,4 @@
-// 
+// 
 // OperatorDeclaration.cs
 //  
 // Author:
@@ -68,8 +68,9 @@ namespace ICSharpCode.NRefactory.CSharp
 	
 	public class OperatorDeclaration : AbstractMember
 	{
-		public const int OperatorKeywordRole = 100;
-		public const int OperatorTypeRole = 101;
+		// AbstractMember.PrivateImplementationTypeRole is 100
+		public const int OperatorKeywordRole = 101;
+		public const int OperatorTypeRole = 102;
 		
 		public OperatorType OperatorType {
 			get;

ICSharpCode.NRefactory/CSharp/Dom/TypeMembers/PropertyDeclaration.cs

@@ -1,4 +1,4 @@
-// 
+// 
 // PropertyDeclaration.cs
 //  
 // Author:
@@ -28,8 +28,9 @@ namespace ICSharpCode.NRefactory.CSharp
 {
 	public class PropertyDeclaration : AbstractMember
 	{
-		public const int PropertyGetRole = 100;
-		public const int PropertySetRole = 101;
+		// AbstractMember.PrivateImplementationTypeRole is 100
+		public const int PropertyGetRole = 101;
+		public const int PropertySetRole = 102;
 		
 		public CSharpTokenNode LBrace {
 			get {

ICSharpCode.NRefactory/CSharp/Parser/TypeSystemConvertVisitor.cs

@@ -3,8 +3,8 @@
 
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.Linq;
-
 using ICSharpCode.NRefactory.CSharp.Resolver;
 using ICSharpCode.NRefactory.TypeSystem;
 using ICSharpCode.NRefactory.TypeSystem.Implementation;
@@ -74,23 +74,18 @@ namespace ICSharpCode.NRefactory.CSharp
 		
 		public override IEntity VisitUsingDeclaration(UsingDeclaration usingDeclaration, object data)
 		{
-			ITypeOrNamespaceReference r = null;
-			/*foreach (Identifier identifier in usingDeclaration.NameIdentifier.NameParts) {
-				if (r == null) {
-					// TODO: alias?
-					r = new SimpleTypeOrNamespaceReference(identifier.Name, null, currentTypeDefinition, usingScope, true);
-				} else {
-					r = new MemberTypeOrNamespaceReference(r, identifier.Name, null, currentTypeDefinition, usingScope);
-				}
-			}*/throw new NotImplementedException();
-			if (r != null)
-				usingScope.Usings.Add(r);
+			ITypeOrNamespaceReference u = ConvertType(usingDeclaration.Import, true) as ITypeOrNamespaceReference;
+			if (u != null)
+				usingScope.Usings.Add(u);
 			return null;
 		}
 		
 		public override IEntity VisitUsingAliasDeclaration(UsingAliasDeclaration usingDeclaration, object data)
 		{
-			throw new NotImplementedException();
+			ITypeOrNamespaceReference u = ConvertType(usingDeclaration.Import, true) as ITypeOrNamespaceReference;
+			if (u != null)
+				usingScope.UsingAliases.Add(new KeyValuePair<string, ITypeOrNamespaceReference>(usingDeclaration.Alias, u));
+			return null;
 		}
 		#endregion
 		
@@ -275,7 +270,7 @@ namespace ICSharpCode.NRefactory.CSharp
 			field.ReturnType = currentTypeDefinition;
 			field.Accessibility = Accessibility.Public;
 			field.IsStatic = true;
-			if (enumMemberDeclaration.Initializer != null) {
+			if (!enumMemberDeclaration.Initializer.IsNull) {
 				field.ConstantValue = ConvertConstantValue(currentTypeDefinition, enumMemberDeclaration.Initializer);
 			} else {
 				throw new NotImplementedException();
@@ -304,7 +299,7 @@ namespace ICSharpCode.NRefactory.CSharp
 			m.IsExtensionMethod = methodDeclaration.IsExtensionMethod;
 			
 			ConvertParameters(m.Parameters, methodDeclaration.Parameters);
-			if (methodDeclaration.PrivateImplementationType != null) {
+			if (!methodDeclaration.PrivateImplementationType.IsNull) {
 				m.Accessibility = Accessibility.None;
 				m.InterfaceImplementations.Add(ConvertInterfaceImplementation(methodDeclaration.PrivateImplementationType, m.Name));
 			}
@@ -349,7 +344,7 @@ namespace ICSharpCode.NRefactory.CSharp
 			DefaultMethod ctor = new DefaultMethod(currentTypeDefinition, isStatic ? ".cctor" : ".ctor");
 			ctor.EntityType = EntityType.Constructor;
 			ctor.Region = MakeRegion(constructorDeclaration);
-			if (constructorDeclaration.Initializer != null) {
+			if (!constructorDeclaration.Initializer.IsNull) {
 				ctor.BodyRegion = MakeRegion(constructorDeclaration.Initializer.StartLocation, constructorDeclaration.EndLocation);
 			} else {
 				ctor.BodyRegion = MakeRegion(constructorDeclaration.Body);
@@ -403,7 +398,7 @@ namespace ICSharpCode.NRefactory.CSharp
 			ApplyModifiers(p, propertyDeclaration.Modifiers);
 			p.ReturnType = ConvertType(propertyDeclaration.ReturnType);
 			ConvertAttributes(p.Attributes, propertyDeclaration.Attributes);
-			if (propertyDeclaration.PrivateImplementationType != null) {
+			if (!propertyDeclaration.PrivateImplementationType.IsNull) {
 				p.Accessibility = Accessibility.None;
 				p.InterfaceImplementations.Add(ConvertInterfaceImplementation(propertyDeclaration.PrivateImplementationType, p.Name));
 			}
@@ -441,7 +436,7 @@ namespace ICSharpCode.NRefactory.CSharp
 			e.ReturnType = ConvertType(eventDeclaration.ReturnType);
 			ConvertAttributes(e.Attributes, eventDeclaration.Attributes);
 			
-			if (eventDeclaration.PrivateImplementationType != null) {
+			if (!eventDeclaration.PrivateImplementationType.IsNull) {
 				e.Accessibility = Accessibility.None;
 				e.InterfaceImplementations.Add(ConvertInterfaceImplementation(eventDeclaration.PrivateImplementationType, e.Name));
 			}
@@ -505,21 +500,96 @@ namespace ICSharpCode.NRefactory.CSharp
 		#region Types
 		static readonly GetClassTypeReference voidReference = new GetClassTypeReference("System.Void", 0);
 		
-		internal static ITypeReference ConvertType(DomNode node)
+		ITypeReference ConvertType(DomNode node, bool isInUsingDeclaration = false)
 		{
-			PrimitiveType f = node as PrimitiveType;
-			if (f != null) {
-				switch (f.Keyword) {
+			return ConvertType(node, currentTypeDefinition, currentMethod, usingScope, isInUsingDeclaration);
+		}
+		
+		internal static ITypeReference ConvertType(DomNode node, ITypeDefinition parentTypeDefinition, IMethod parentMethodDefinition, UsingScope parentUsingScope, bool isInUsingDeclaration)
+		{
+			SimpleType s = node as SimpleType;
+			if (s != null) {
+				List<ITypeReference> typeArguments = new List<ITypeReference>();
+				foreach (var ta in s.TypeArguments) {
+					typeArguments.Add(ConvertType(ta, parentTypeDefinition, parentMethodDefinition, parentUsingScope, isInUsingDeclaration));
+				}
+				if (s.IsQualifiedWithAlias) {
+					AliasNamespaceReference ar = new AliasNamespaceReference(s.AliasIdentifier.Name, parentUsingScope);
+					return new MemberTypeOrNamespaceReference(ar, s.Identifier, typeArguments, parentTypeDefinition, parentUsingScope);
+				} else {
+					if (typeArguments.Count == 0 && parentMethodDefinition != null) {
+						// SimpleTypeOrNamespaceReference doesn't support method type parameters,
+						// so we directly handle them here.
+						foreach (ITypeParameter tp in parentMethodDefinition.TypeParameters) {
+							if (tp.Name == s.Identifier)
+								return tp;
+						}
+					}
+					return new SimpleTypeOrNamespaceReference(s.Identifier, typeArguments, parentTypeDefinition, parentUsingScope, isInUsingDeclaration);
+				}
+			}
+			PrimitiveType p = node as PrimitiveType;
+			if (p != null) {
+				switch (p.Keyword) {
 					case "string":
 						return TypeCode.String.ToTypeReference();
 					case "int":
 						return TypeCode.Int32.ToTypeReference();
 					case "uint":
 						return TypeCode.UInt32.ToTypeReference();
+					case "object":
+						return TypeCode.Object.ToTypeReference();
+					case "bool":
+						return TypeCode.Boolean.ToTypeReference();
+					case "sbyte":
+						return TypeCode.SByte.ToTypeReference();
+					case "byte":
+						return TypeCode.Byte.ToTypeReference();
+					case "short":
+						return TypeCode.Int16.ToTypeReference();
+					case "ushort":
+						return TypeCode.UInt16.ToTypeReference();
+					case "long":
+						return TypeCode.Int64.ToTypeReference();
+					case "ulong":
+						return TypeCode.UInt64.ToTypeReference();
+					case "float":
+						return TypeCode.Single.ToTypeReference();
+					case "double":
+						return TypeCode.Double.ToTypeReference();
+					case "decimal":
+						return TypeCode.Decimal.ToTypeReference();
 					case "void":
 						return voidReference;
+					default:
+						return SharedTypes.UnknownType;
+				}
+			}
+			MemberType m = node as MemberType;
+			if (m != null) {
+				ITypeOrNamespaceReference t = ConvertType(m.Target, parentTypeDefinition, parentMethodDefinition, parentUsingScope, isInUsingDeclaration) as ITypeOrNamespaceReference;
+				if (t == null)
+					return SharedTypes.UnknownType;
+				List<ITypeReference> typeArguments = new List<ITypeReference>();
+				foreach (var ta in m.TypeArguments) {
+					typeArguments.Add(ConvertType(ta, parentTypeDefinition, parentMethodDefinition, parentUsingScope, isInUsingDeclaration));
+				}
+				return new MemberTypeOrNamespaceReference(t, m.Identifier, typeArguments, parentTypeDefinition, parentUsingScope);
+			}
+			ComposedType c = node as ComposedType;
+			if (c != null) {
+				ITypeReference t = ConvertType(c.BaseType, parentTypeDefinition, parentMethodDefinition, parentUsingScope, isInUsingDeclaration);
+				if (c.HasNullableSpecifier) {
+					t = NullableType.Create(t);
+				}
+				for (int i = 0; i < c.PointerRank; i++) {
+					t = PointerTypeReference.Create(t);
+				}
+				foreach (var a in c.ArraySpecifiers.Reverse()) {
+					t = ArrayTypeReference.Create(t, a.Dimensions);
 				}
 			}
+			Debug.WriteLine("Unknown node used as type: " + node);
 			return SharedTypes.UnknownType;
 		}
 		#endregion

ICSharpCode.NRefactory/CSharp/Resolver/ResolveVisitor.cs

@@ -945,10 +945,15 @@ namespace ICSharpCode.NRefactory.CSharp.Resolver
 			if (initializerExpression != null && IsVar(type)) {
 				return new VarTypeReference(this, resolver.Clone(), initializerExpression, isForEach);
 			} else {
-				return TypeSystemConvertVisitor.ConvertType(type);
+				return MakeTypeReference(type);
 			}
 		}
 		
+		ITypeReference MakeTypeReference(DomNode type)
+		{
+			return TypeSystemConvertVisitor.ConvertType(type, resolver.CurrentTypeDefinition, resolver.CurrentMember as IMethod, resolver.UsingScope, false);
+		}
+		
 		static bool IsVar(DomNode returnType)
 		{
 			return returnType is IdentifierExpression && ((IdentifierExpression)returnType).Identifier == "var";
@@ -1055,12 +1060,26 @@ namespace ICSharpCode.NRefactory.CSharp.Resolver
 		#region Type References
 		public override ResolveResult VisitPrimitiveType(PrimitiveType primitiveType, object data)
 		{
-			return null;
+			ScanChildren(primitiveType);
+			return new TypeResolveResult(MakeTypeReference(primitiveType).Resolve(resolver.Context));
+		}
+		
+		public override ResolveResult VisitSimpleType(SimpleType simpleType, object data)
+		{
+			ScanChildren(simpleType);
+			return new TypeResolveResult(MakeTypeReference(simpleType).Resolve(resolver.Context));
+		}
+		
+		public override ResolveResult VisitMemberType(MemberType memberType, object data)
+		{
+			ScanChildren(memberType);
+			return new TypeResolveResult(MakeTypeReference(memberType).Resolve(resolver.Context));
 		}
 		
 		public override ResolveResult VisitComposedType(ComposedType composedType, object data)
 		{
-			return null;
+			ScanChildren(composedType);
+			return new TypeResolveResult(MakeTypeReference(composedType).Resolve(resolver.Context));
 		}
 		#endregion