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//
// RefactoringContext.cs
//
// Author:
// Mike Krüger <mkrueger@novell.com>
//
// Copyright (c) 2011 Mike Krüger <mkrueger@novell.com>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System;
using System.Linq;
using System.Threading;
using ICSharpCode.NRefactory.CSharp.Resolver;
using ICSharpCode.NRefactory.CSharp.TypeSystem;
using ICSharpCode.NRefactory.Semantics;
using ICSharpCode.NRefactory.TypeSystem;
using ICSharpCode.NRefactory.TypeSystem.Implementation;
using ICSharpCode.NRefactory.Editor;
using System.Collections.Generic;
namespace ICSharpCode.NRefactory.CSharp.Refactoring
{
public abstract class RefactoringContext : BaseRefactoringContext
{
public RefactoringContext(CSharpAstResolver resolver, CancellationToken cancellationToken) : base (resolver, cancellationToken)
{
}
public abstract TextLocation Location { get; }
public TypeSystemAstBuilder CreateTypeSystemAstBuilder()
{
var csResolver = Resolver.GetResolverStateBefore(GetNode());
return new TypeSystemAstBuilder(csResolver);
}
public virtual AstType CreateShortType (IType fullType)
{
var builder = CreateTypeSystemAstBuilder();
return builder.ConvertType(fullType);
}
public virtual AstType CreateShortType(string ns, string name, int typeParameterCount = 0)
{
var builder = CreateTypeSystemAstBuilder();
return builder.ConvertType(new TopLevelTypeName(ns, name, typeParameterCount));
}
public virtual IEnumerable<AstNode> GetSelectedNodes()
{
if (!IsSomethingSelected) {
return Enumerable.Empty<AstNode> ();
}
return RootNode.GetNodesBetween(SelectionStart, SelectionEnd);
}
public AstNode GetNode ()
{
return RootNode.GetNodeAt (Location);
}
public AstNode GetNode (Predicate<AstNode> pred)
{
return RootNode.GetNodeAt (Location, pred);
}
public T GetNode<T> () where T : AstNode
{
return RootNode.GetNodeAt<T> (Location);
}
public CSharpTypeResolveContext GetTypeResolveContext()
{
if (UnresolvedFile != null)
return UnresolvedFile.GetTypeResolveContext(Compilation, Location);
else
return null;
}
#region Text stuff
public virtual TextEditorOptions TextEditorOptions {
get {
return TextEditorOptions.Default;
}
}
public virtual bool IsSomethingSelected {
get {
return SelectionStart != TextLocation.Empty;
}
}
public virtual string SelectedText {
get { return string.Empty; }
}
public virtual TextLocation SelectionStart {
get {
return TextLocation.Empty;
}
}
public virtual TextLocation SelectionEnd {
get {
return TextLocation.Empty;
}
}
public abstract int GetOffset (TextLocation location);
public abstract IDocumentLine GetLineByOffset (int offset);
public int GetOffset (int line, int col)
{
return GetOffset (new TextLocation (line, col));
}
public abstract TextLocation GetLocation (int offset);
public abstract string GetText (int offset, int length);
public abstract string GetText (ISegment segment);
#endregion
#region Naming
public virtual string GetNameProposal (string name, bool camelCase = true)
{
string baseName = (camelCase ? char.ToLower (name [0]) : char.ToUpper (name [0])) + name.Substring (1);
var type = GetNode<TypeDeclaration> ();
if (type == null)
return baseName;
int number = -1;
string proposedName;
do {
proposedName = AppendNumberToName (baseName, number++);
} while (type.Members.Select (m => m.GetChildByRole (Roles.Identifier)).Any (n => n.Name == proposedName));
return proposedName;
}
static string AppendNumberToName (string baseName, int number)
{
return baseName + (number > 0 ? (number + 1).ToString () : "");
}
#endregion
}
}
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