IType GetDelegateType(RefactoringOptions options, ICSharpCode.NRefactory.CSharp.CompilationUnit unit)
{
var data = options.GetTextEditorData();
var containingNode = unit.GetNodeAt(data.Caret.Line, data.Caret.Column);
var parent = containingNode.Parent;
while (parent != null)
{
if (parent is AssignmentExpression)
{
AssignmentExpression assignment = (AssignmentExpression)parent;
if (assignment.Operator != AssignmentOperatorType.Add && assignment.Operator != AssignmentOperatorType.Subtract && assignment.Operator != AssignmentOperatorType.Assign)
{
return(null);
}
var resolveResult = ResolveAssignment(options, assignment);
if (resolveResult == null)
{
return(null);
}
IType type = options.Dom.GetType(resolveResult.ResolvedType);
if (type == null || type.ClassType != MonoDevelop.Projects.Dom.ClassType.Delegate)
{
return(null);
}
return(type);
}
parent = parent.Parent;
}
return(null);
}
InvocationExpression GetInvocation(ICSharpCode.NRefactory.CSharp.CompilationUnit unit, TextEditorData data)
{
var containingNode = unit.GetNodeAt(data.Caret.Line, data.Caret.Column);
var curNode = containingNode;
while (curNode != null && !(curNode is InvocationExpression))
{
curNode = curNode.Parent;
}
return(curNode as InvocationExpression);
}
bool AnalyzeTargetExpression(RefactoringOptions options, ICSharpCode.NRefactory.CSharp.CompilationUnit unit)
{
var data = options.GetTextEditorData();
var target = unit.GetNodeAt(data.Caret.Line, data.Caret.Column);
if (target == null)
{
return(false);
}
if (target.Parent is MemberReferenceExpression && ((MemberReferenceExpression)target.Parent).GetChildByRole(MemberReferenceExpression.Roles.Identifier) == target)
{
var memberReference = (MemberReferenceExpression)target.Parent;
target = memberReference.Target;
var targetResult = options.GetResolver().Resolve(new ExpressionResult(data.GetTextBetween(target.StartLocation.Line, target.StartLocation.Column, target.EndLocation.Line, target.EndLocation.Column)), resolvePosition);
if (targetResult.StaticResolve)
{
modifiers = MonoDevelop.Projects.Dom.Modifiers.Static;
}
declaringType = options.Dom.GetType(targetResult.ResolvedType);
methodName = memberReference.MemberName;
}
else if (target is Identifier)
{
if (options.ResolveResult != null)
{
declaringType = options.ResolveResult.CallingType;
}
else
{
declaringType = options.Document.CompilationUnit.GetTypeAt(options.Document.Editor.Caret.Line, options.Document.Editor.Caret.Column);
}
methodName = data.GetTextBetween(target.StartLocation.Line, target.StartLocation.Column, target.EndLocation.Line, target.EndLocation.Column);
}
if (declaringType != null && !HasCompatibleMethod(declaringType, methodName, invocation))
{
if (declaringType.HasParts)
{
declaringType = declaringType.Parts.FirstOrDefault(t => t.CompilationUnit.FileName == options.Document.FileName) ?? declaringType;
}
if (declaringType == null || declaringType.CompilationUnit == null)
{
return(false);
}
var doc = ProjectDomService.GetParsedDocument(declaringType.SourceProjectDom, declaringType.CompilationUnit.FileName);
declaringType = doc.CompilationUnit.GetTypeAt(declaringType.Location) ?? declaringType;
return(true);
}
return(false);
}