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;
}
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;
}
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 != ClassType.Delegate)
return null;
return type;
}
parent = parent.Parent;
}
return null;
}