ICSharpCode.NRefactory.Ast.INode Analyze (RefactoringOptions options, ExtractMethodParameters param, bool fillParameter)
{
IResolver resolver = options.GetResolver ();
INRefactoryASTProvider provider = options.GetASTProvider ();
if (resolver == null || provider == null)
return null;
string text = options.Document.Editor.GetTextAt (options.Document.Editor.SelectionRange);
TextEditorData data = options.GetTextEditorData ();
var cu = provider.ParseFile (data.Document.GetTextAt (0, data.SelectionRange.Offset) + "MethodCall ();" + data.Document.GetTextAt (data.SelectionRange.EndOffset, data.Document.Length - data.SelectionRange.EndOffset));
if (cu == null || provider.LastErrors.Count > 0)
cu = provider.ParseFile (data.Document.GetTextAt (0, data.SelectionRange.Offset) + "MethodCall ()" + data.Document.GetTextAt (data.SelectionRange.EndOffset, data.Document.Length - data.SelectionRange.EndOffset));
if (cu == null || provider.LastErrors.Count > 0)
return null;
param.Text = RemoveIndent (text, GetIndent (text)).TrimEnd ('\n', '\r');
ICSharpCode.NRefactory.Ast.INode result = provider.ParseText (text);
if (cu == null || provider.LastErrors.Count > 0) {
return null;
}
VariableLookupVisitor visitor = new VariableLookupVisitor (resolver, param.Location);
visitor.MemberLocation = new Location (param.DeclaringMember.Location.Column, param.DeclaringMember.Location.Line);
if (fillParameter) {
if (result != null)
result.AcceptVisitor (visitor, null);
if (result is Expression) {
ResolveResult resolveResult = resolver.Resolve (new ExpressionResult (text), param.Location);
if (resolveResult != null)
param.ExpressionType = resolveResult.ResolvedType;
}
var startLocation = data.Document.OffsetToLocation (data.SelectionRange.Offset);
var endLocation = data.Document.OffsetToLocation (data.SelectionRange.EndOffset);
// Console.WriteLine ("startLocation={0}, endLocation={1}", startLocation, endLocation);
foreach (VariableDescriptor varDescr in visitor.VariableList.Where (v => !v.IsDefined && v.InitialValueUsed)) {
if (startLocation <= varDescr.Location && varDescr.Location < endLocation)
continue;
// Console.WriteLine (varDescr.Location);
// Console.WriteLine (startLocation <= varDescr.Location);
// Console.WriteLine (varDescr.Location < endLocation);
param.Parameters.Add (varDescr);
}
param.Variables = new List<VariableDescriptor> (visitor.Variables.Values);
foreach (VariableDescriptor varDescr in visitor.VariableList.Where (v => !v.IsDefined && param.Variables.Contains (v))) {
if (param.Parameters.Contains (varDescr))
continue;
if (startLocation <= varDescr.Location && varDescr.Location < endLocation)
continue;
param.Parameters.Add (varDescr);
}
param.ReferencesMember = visitor.ReferencesMember;
param.ChangedVariables = new HashSet<string> (visitor.Variables.Values.Where (v => v.GetsChanged).Select (v => v.Name));
// analyze the variables outside of the selected text
IMember member = param.DeclaringMember;
int startOffset = data.Document.LocationToOffset (member.BodyRegion.Start.Line, member.BodyRegion.Start.Column);
int endOffset = data.Document.LocationToOffset (member.BodyRegion.End.Line, member.BodyRegion.End.Column);
if (data.SelectionRange.Offset < startOffset || endOffset < data.SelectionRange.EndOffset)
return null;
text = data.Document.GetTextBetween (startOffset, data.SelectionRange.Offset) + data.Document.GetTextBetween (data.SelectionRange.EndOffset, endOffset);
ICSharpCode.NRefactory.Ast.INode parsedNode = provider.ParseText (text);
visitor = new VariableLookupVisitor (resolver, param.Location);
visitor.CutRegion = new DomRegion (data.MainSelection.MinLine, data.MainSelection.MaxLine);
visitor.MemberLocation = new Location (param.DeclaringMember.Location.Column, param.DeclaringMember.Location.Line);
if (parsedNode != null)
parsedNode.AcceptVisitor (visitor, null);
param.VariablesOutside = new Dictionary<string, VariableDescriptor> ();
foreach (var pair in visitor.Variables) {
if (startLocation < pair.Value.Location || endLocation >= pair.Value.Location) {
param.VariablesOutside.Add (pair.Key, pair.Value);
}
}
param.OutsideVariableList = new List<VariableDescriptor> ();
foreach (var v in visitor.VariableList) {
if (startLocation < v.Location || endLocation >= v.Location)
param.OutsideVariableList.Add (v);
}
param.ChangedVariablesUsedOutside = new List<VariableDescriptor> (param.Variables.Where (v => v.GetsChanged && param.VariablesOutside.ContainsKey (v.Name)));
param.OneChangedVariable = result is BlockStatement;
if (param.OneChangedVariable)
param.OneChangedVariable = param.ChangedVariablesUsedOutside.Count == 1;
param.VariablesToGenerate = new List<VariableDescriptor> (param.ChangedVariablesUsedOutside.Where (v => v.IsDefined));
foreach (VariableDescriptor var in param.VariablesToGenerate) {
param.Parameters.Add (var);
}
if (param.OneChangedVariable) {
param.VariablesToDefine = new List<VariableDescriptor> (param.Parameters.Where (var => !var.InitialValueUsed));
param.VariablesToDefine.ForEach (var => param.Parameters.Remove (var));
} else {
param.VariablesToDefine = new List<VariableDescriptor> ();
}
}
return result;
}
ICSharpCode.NRefactory.Ast.INode Analyze(RefactoringOptions options, ExtractMethodParameters param, bool fillParameter)
{
IResolver resolver = options.GetResolver();
INRefactoryASTProvider provider = options.GetASTProvider();
if (resolver == null || provider == null)
{
return(null);
}
string text = options.Document.TextEditor.GetText(options.Document.TextEditor.SelectionStartPosition, options.Document.TextEditor.SelectionEndPosition);
TextEditorData data = options.GetTextEditorData();
var cu = provider.ParseFile(data.Document.GetTextAt(0, data.SelectionRange.Offset) + "MethodCall ();" + data.Document.GetTextAt(data.SelectionRange.EndOffset, data.Document.Length - data.SelectionRange.EndOffset));
if (cu == null || provider.LastErrors.Count > 0)
{
cu = provider.ParseFile(data.Document.GetTextAt(0, data.SelectionRange.Offset) + "MethodCall ()" + data.Document.GetTextAt(data.SelectionRange.EndOffset, data.Document.Length - data.SelectionRange.EndOffset));
}
if (cu == null || provider.LastErrors.Count > 0)
{
return(null);
}
param.Text = RemoveIndent(text, GetIndent(text)).TrimEnd('\n', '\r');
ICSharpCode.NRefactory.Ast.INode result = provider.ParseText(text);
if (cu == null || provider.LastErrors.Count > 0)
{
return(null);
}
VariableLookupVisitor visitor = new VariableLookupVisitor(resolver, param.Location);
visitor.MemberLocation = new Location(param.DeclaringMember.Location.Column, param.DeclaringMember.Location.Line);
if (fillParameter)
{
if (result != null)
{
result.AcceptVisitor(visitor, null);
}
if (result is Expression)
{
ResolveResult resolveResult = resolver.Resolve(new ExpressionResult(text), param.Location);
if (resolveResult != null)
{
param.ExpressionType = resolveResult.ResolvedType;
}
}
var startLocation = data.Document.OffsetToLocation(data.SelectionRange.Offset);
var endLocation = data.Document.OffsetToLocation(data.SelectionRange.EndOffset);
// Console.WriteLine ("startLocation={0}, endLocation={1}", startLocation, endLocation);
foreach (VariableDescriptor varDescr in visitor.VariableList.Where(v => !v.IsDefined && v.InitialValueUsed))
{
if (startLocation <= varDescr.Location && varDescr.Location < endLocation)
{
continue;
}
// Console.WriteLine (varDescr.Location);
// Console.WriteLine (startLocation <= varDescr.Location);
// Console.WriteLine (varDescr.Location < endLocation);
param.Parameters.Add(varDescr);
}
param.Variables = new List <VariableDescriptor> (visitor.Variables.Values);
foreach (VariableDescriptor varDescr in visitor.VariableList.Where(v => !v.IsDefined && param.Variables.Contains(v)))
{
if (param.Parameters.Contains(varDescr))
{
continue;
}
if (startLocation <= varDescr.Location && varDescr.Location < endLocation)
{
continue;
}
param.Parameters.Add(varDescr);
}
param.ReferencesMember = visitor.ReferencesMember;
param.ChangedVariables = new HashSet <string> (visitor.Variables.Values.Where(v => v.GetsChanged).Select(v => v.Name));
// analyze the variables outside of the selected text
IMember member = param.DeclaringMember;
int startOffset = data.Document.LocationToOffset(member.BodyRegion.Start.Line, member.BodyRegion.Start.Column);
int endOffset = data.Document.LocationToOffset(member.BodyRegion.End.Line, member.BodyRegion.End.Column);
if (data.SelectionRange.Offset < startOffset || endOffset < data.SelectionRange.EndOffset)
{
return(null);
}
text = data.Document.GetTextBetween(startOffset, data.SelectionRange.Offset) + data.Document.GetTextBetween(data.SelectionRange.EndOffset, endOffset);
ICSharpCode.NRefactory.Ast.INode parsedNode = provider.ParseText(text);
visitor = new VariableLookupVisitor(resolver, param.Location);
visitor.CutRegion = new DomRegion(data.MainSelection.MinLine, data.MainSelection.MaxLine);
visitor.MemberLocation = new Location(param.DeclaringMember.Location.Column, param.DeclaringMember.Location.Line);
if (parsedNode != null)
{
parsedNode.AcceptVisitor(visitor, null);
}
param.VariablesOutside = new Dictionary <string, VariableDescriptor> ();
foreach (var pair in visitor.Variables)
{
if (startLocation < pair.Value.Location || endLocation >= pair.Value.Location)
{
param.VariablesOutside.Add(pair.Key, pair.Value);
}
}
param.OutsideVariableList = new List <VariableDescriptor> ();
foreach (var v in visitor.VariableList)
{
if (startLocation < v.Location || endLocation >= v.Location)
{
param.OutsideVariableList.Add(v);
}
}
param.ChangedVariablesUsedOutside = new List <VariableDescriptor> (param.Variables.Where(v => v.GetsChanged && param.VariablesOutside.ContainsKey(v.Name)));
param.OneChangedVariable = result is BlockStatement;
if (param.OneChangedVariable)
{
param.OneChangedVariable = param.ChangedVariablesUsedOutside.Count == 1;
}
param.VariablesToGenerate = new List <VariableDescriptor> (param.ChangedVariablesUsedOutside.Where(v => v.IsDefined));
foreach (VariableDescriptor var in param.VariablesToGenerate)
{
param.Parameters.Add(var);
}
if (param.OneChangedVariable)
{
param.VariablesToDefine = new List <VariableDescriptor> (param.Parameters.Where(var => !var.InitialValueUsed));
param.VariablesToDefine.ForEach(var => param.Parameters.Remove(var));
}
else
{
param.VariablesToDefine = new List <VariableDescriptor> ();
}
}
return(result);
}
