Worked on completion engine API.

ICSharpCode.NRefactory.CSharp/Completion/CSharpCompletionEngine.cs

@@ -57,8 +57,12 @@ namespace ICSharpCode.NRefactory.CSharp.Completion
 		public bool CloseOnSquareBrackets;
 		#endregion
 		
-		public CSharpCompletionEngine (IDocument document, ICompletionDataFactory factory)
+		public CSharpCompletionEngine (IDocument document, ICompletionDataFactory factory, IProjectContent content, CSharpTypeResolveContext ctx, CompilationUnit unit, CSharpParsedFile parsedFile) : base (content, ctx, unit, parsedFile)
 		{
+			if (document == null)
+				throw new ArgumentNullException ("document");
+			if (factory == null)
+				throw new ArgumentNullException ("factory");
 			this.document = document;
 			this.factory = factory;
 		}

ICSharpCode.NRefactory.CSharp/Completion/CSharpCompletionEngineBase.cs

@@ -49,13 +49,13 @@ namespace ICSharpCode.NRefactory.CSharp.Completion
 		protected IUnresolvedMember currentMember;
 		
 		#region Input properties
-		public CSharpTypeResolveContext ctx { get; set; }
+		public CSharpTypeResolveContext ctx { get; private set; }
 
-		public CompilationUnit Unit { get; set; }
+		public CompilationUnit Unit { get; private set; }
 
-		public CSharpParsedFile CSharpParsedFile { get; set; }
+		public CSharpParsedFile CSharpParsedFile { get; private set; }
 
-		public IProjectContent ProjectContent { get; set; }
+		public IProjectContent ProjectContent { get; private set; }
 		
 		ICompilation compilation;
 
@@ -66,9 +66,25 @@ namespace ICSharpCode.NRefactory.CSharp.Completion
 				return compilation;
 			}
 		}
-		
 		#endregion
 		
+		protected CSharpCompletionEngineBase (IProjectContent content, CSharpTypeResolveContext ctx, CompilationUnit unit, CSharpParsedFile parsedFile)
+		{
+			if (content == null)
+				throw new ArgumentNullException ("content");
+			if (ctx == null)
+				throw new ArgumentNullException ("ctx");
+			if (unit == null)
+				throw new ArgumentNullException ("unit");
+			if (parsedFile == null)
+				throw new ArgumentNullException ("parsedFile");
+			
+			this.ProjectContent = content;
+			this.ctx = ctx;
+			this.Unit = unit;
+			this.CSharpParsedFile = parsedFile;
+		}
+		
 		IUnresolvedTypeDefinition FindInnerType (IUnresolvedTypeDefinition parent, TextLocation location)
 		{
 			if (parent == null)

ICSharpCode.NRefactory.CSharp/Completion/CSharpParameterCompletionEngine.cs

@@ -38,8 +38,12 @@ namespace ICSharpCode.NRefactory.CSharp.Completion
 	{
 		internal IParameterCompletionDataFactory factory;
 		
-		public CSharpParameterCompletionEngine (IDocument document, IParameterCompletionDataFactory factory)
+		public CSharpParameterCompletionEngine (IDocument document, IParameterCompletionDataFactory factory, IProjectContent content, CSharpTypeResolveContext ctx, CompilationUnit unit, CSharpParsedFile parsedFile) : base (content, ctx, unit, parsedFile)
 		{
+			if (document == null)
+				throw new ArgumentNullException ("document");
+			if (factory == null)
+				throw new ArgumentNullException ("factory");
 			this.document = document;
 			this.factory = factory;
 		}