Fixed SD2-1626 - Type parameters placed incorrectly when implementing interface nested inside generic class

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/branches/3.0@5297 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/Main/ICSharpCode.SharpDevelop.Dom/Project/Src/Refactoring/CodeGenerator.cs

@@ -43,26 +43,66 @@ namespace ICSharpCode.SharpDevelop.Dom.Refactoring
 			if (returnType == null)           return TypeReference.Null;
 			if (returnType is NullReturnType) return TypeReference.Null;
 			
-			TypeReference typeRef;
-			if (IsPrimitiveType(returnType))
-				typeRef = new TypeReference(returnType.FullyQualifiedName, true);
-			else if (context != null && CanUseShortTypeName(returnType, context))
-				typeRef = new TypeReference(returnType.Name);
-			else
-				typeRef = new TypeReference(returnType.FullyQualifiedName);
-			while (returnType.IsArrayReturnType) {
+			ArrayReturnType arrayReturnType = returnType.CastToArrayReturnType();
+			if (arrayReturnType != null) {
+				TypeReference typeRef = ConvertType(arrayReturnType.ArrayElementType, context);
 				int[] rank = typeRef.RankSpecifier ?? new int[0];
 				Array.Resize(ref rank, rank.Length + 1);
-				rank[rank.Length - 1] = returnType.CastToArrayReturnType().ArrayDimensions - 1;
+				rank[rank.Length - 1] = arrayReturnType.ArrayDimensions - 1;
 				typeRef.RankSpecifier = rank;
-				returnType = returnType.CastToArrayReturnType().ArrayElementType;
+				return typeRef;
+			}
+			PointerReturnType pointerReturnType = returnType.CastToDecoratingReturnType<PointerReturnType>();
+			if (pointerReturnType != null) {
+				TypeReference typeRef = ConvertType(pointerReturnType.BaseType, context);
+				typeRef.PointerNestingLevel++;
+				return typeRef;
 			}
+			
+			IList<IReturnType> typeArguments = EmptyList<IReturnType>.Instance;
 			if (returnType.IsConstructedReturnType) {
-				foreach (IReturnType typeArgument in returnType.CastToConstructedReturnType().TypeArguments) {
+				typeArguments = returnType.CastToConstructedReturnType().TypeArguments;
+			}
+			IClass c = returnType.GetUnderlyingClass();
+			if (c != null) {
+				return CreateTypeReference(c, typeArguments, context);
+			} else {
+				TypeReference typeRef;
+				if (IsPrimitiveType(returnType))
+					typeRef = new TypeReference(returnType.FullyQualifiedName, true);
+				else if (context != null && CanUseShortTypeName(returnType, context))
+					typeRef = new TypeReference(returnType.Name);
+				else
+					typeRef = new TypeReference(returnType.FullyQualifiedName);
+				foreach (IReturnType typeArgument in typeArguments) {
 					typeRef.GenericTypes.Add(ConvertType(typeArgument, context));
 				}
+				return typeRef;
+			}
+		}
+		
+		static TypeReference CreateTypeReference(IClass c, IList<IReturnType> typeArguments, ClassFinder context)
+		{
+			if (c.DeclaringType != null) {
+				TypeReference outerClass = CreateTypeReference(c.DeclaringType, typeArguments, context);
+				List<TypeReference> args = new List<TypeReference>();
+				for (int i = c.DeclaringType.TypeParameters.Count; i < Math.Min(c.TypeParameters.Count, typeArguments.Count); i++) {
+					args.Add(ConvertType(typeArguments[i], context));
+				}
+				return new InnerClassTypeReference(outerClass, c.Name, args);
+			} else {
+				TypeReference typeRef;
+				if (IsPrimitiveType(c.DefaultReturnType))
+					typeRef = new TypeReference(c.FullyQualifiedName, true);
+				else if (context != null && CanUseShortTypeName(c.DefaultReturnType, context))
+					typeRef = new TypeReference(c.Name);
+				else
+					typeRef = new TypeReference(c.FullyQualifiedName);
+				for (int i = 0; i < Math.Min(c.TypeParameters.Count, typeArguments.Count); i++) {
+					typeRef.GenericTypes.Add(ConvertType(typeArguments[i], context));
+				}
+				return typeRef;
 			}
-			return typeRef;
 		}
 		
 		static bool IsPrimitiveType(IReturnType returnType)
@@ -78,9 +118,12 @@ namespace ICSharpCode.SharpDevelop.Dom.Refactoring
 		/// </summary>
 		public static bool CanUseShortTypeName(IReturnType returnType, ClassFinder context)
 		{
-			int typeArgumentCount = (returnType.IsConstructedReturnType) ? returnType.CastToConstructedReturnType().TypeArguments.Count : 0;
-			IReturnType typeInTargetContext = context.SearchType(returnType.Name, typeArgumentCount);
-			return typeInTargetContext != null && typeInTargetContext.FullyQualifiedName == returnType.FullyQualifiedName;
+			if (returnType == null || context == null)
+				return false;
+			IReturnType typeInTargetContext = context.SearchType(returnType.Name, returnType.TypeArgumentCount);
+			return typeInTargetContext != null
+				&& typeInTargetContext.FullyQualifiedName == returnType.FullyQualifiedName
+				&& typeInTargetContext.TypeArgumentCount == returnType.TypeArgumentCount;
 		}
 		
 		public static Modifiers ConvertModifier(ModifierEnum modifiers, ClassFinder targetContext)

src/Main/ICSharpCode.SharpDevelop.Dom/Tests/ICSharpCode.SharpDevelop.Dom.Tests/ICSharpCode.SharpDevelop.Dom.Tests.csproj

@@ -1,4 +1,5 @@
-<Project ToolsVersion="3.5" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="3.5" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
     <ProjectGuid>{7DB80259-24D4-46C3-A024-53FF1987733D}</ProjectGuid>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
@@ -50,6 +51,7 @@
     <Compile Include="ClassInheritanceTreeTests.cs" />
     <Compile Include="CodeSnippetConverterTests.cs" />
     <Compile Include="CSharpAmbienceTests.cs" />
+    <Compile Include="ImplementInterfaceTests.cs" />
     <Compile Include="NRefactoryAstConverterTests.cs" />
     <Compile Include="NRefactoryRefactoringProviderTests.cs" />
     <Compile Include="NUnitHelpers\SyntaxHelpers.cs" />

src/Main/ICSharpCode.SharpDevelop.Dom/Tests/ICSharpCode.SharpDevelop.Dom.Tests/ImplementInterfaceTests.cs

@@ -0,0 +1,59 @@
+// <file>
+//     <copyright see="prj:///doc/copyright.txt"/>
+//     <license see="prj:///doc/license.txt"/>
+//     <owner name="Daniel Grunwald"/>
+//     <version>$Revision$</version>
+// </file>
+
+using System;
+using System.Collections.Generic;
+using ICSharpCode.NRefactory.Ast;
+using ICSharpCode.NRefactory.PrettyPrinter;
+using ICSharpCode.SharpDevelop.Dom.Refactoring;
+using NUnit.Framework;
+
+namespace ICSharpCode.SharpDevelop.Dom.Tests
+{
+	[TestFixture]
+	public class ImplementInterfaceTests
+	{
+		[Test]
+		public void NestedInterfaceInGenericClass()
+		{
+			// See SD2-1626
+			DefaultProjectContent pc = new DefaultProjectContent();
+			pc.ReferencedContents.Add(SharedProjectContentRegistryForTests.Instance.Mscorlib);
+			
+			DefaultCompilationUnit cu = new DefaultCompilationUnit(pc);
+			DefaultClass container = new DefaultClass(cu, "TestClass");
+			container.TypeParameters.Add(new DefaultTypeParameter(container, "T", 0));
+			
+			DefaultClass innerClass = new DefaultClass(cu, container);
+			innerClass.FullyQualifiedName = "TestClass.INestedInterface";
+			innerClass.ClassType = ClassType.Interface;
+			innerClass.TypeParameters.Add(new DefaultTypeParameter(innerClass, "T", 0));
+			innerClass.Properties.Add(new DefaultProperty(innerClass, "P") {
+			                          	ReturnType = new GenericReturnType(innerClass.TypeParameters[0]),
+			                          	CanGet = true
+			                          });
+			container.InnerClasses.Add(innerClass);
+			pc.AddClassToNamespaceList(container);
+			
+			DefaultClass targetClass = new DefaultClass(cu, "TargetClass");
+			List<AbstractNode> nodes = new List<AbstractNode>();
+			
+			IReturnType interf = new SearchClassReturnType(pc, targetClass, 0, 0, "TestClass.INestedInterface", 1);
+			interf = new ConstructedReturnType(interf, new IReturnType[] { SharedProjectContentRegistryForTests.Instance.Mscorlib.GetClass("System.String", 0).DefaultReturnType });
+			
+			CSharpCodeGenerator codeGen = new CSharpCodeGenerator();
+			codeGen.ImplementInterface(nodes, interf, true, targetClass);
+			
+			Assert.AreEqual(1, nodes.Count);
+			CSharpOutputVisitor output = new CSharpOutputVisitor();
+			output.Options.IndentationChar = ' ';
+			output.Options.IndentSize = 2;
+			nodes[0].AcceptVisitor(output, null);
+			Assert.AreEqual("string TestClass<string>.INestedInterface.P {\n  get {\n    throw new NotImplementedException();\n  }\n}", output.Text.Replace("\r", "").Trim());
+		}
+	}
+}