public async Task ComputeRefactoringsForNodeAsync()
        {
            SyntaxNode node = Root.FindNode(Span, findInsideTrivia: false, getInnermostNodeForTie: true);

            if (node == null)
            {
                return;
            }

            bool fAccessor                      = false;
            bool fArgument                      = false;
            bool fArgumentList                  = false;
            bool fAttributeArgumentList         = false;
            bool fArrowExpressionClause         = false;
            bool fParameter                     = false;
            bool fParameterList                 = false;
            bool fSwitchSection                 = false;
            bool fVariableDeclaration           = false;
            bool fVariableDeclarator            = false;
            bool fInterpolatedStringText        = false;
            bool fElseClause                    = false;
            bool fCaseSwitchLabel               = false;
            bool fUsingDirective                = false;
            bool fDeclarationPattern            = false;
            bool fTypeParameterConstraintClause = false;

            bool fExpression                   = false;
            bool fAnonymousMethod              = false;
            bool fAssignmentExpression         = false;
            bool fBinaryExpression             = false;
            bool fConditionalExpression        = false;
            bool fQualifiedName                = false;
            bool fGenericName                  = false;
            bool fIdentifierName               = false;
            bool fInitializerExpression        = false;
            bool fInterpolatedStringExpression = false;
            bool fInterpolation                = false;
            bool fInvocationExpression         = false;
            bool fLambdaExpression             = false;
            bool fLiteralExpression            = false;
            bool fSimpleMemberAccessExpression = false;
            bool fParenthesizedExpression      = false;
            bool fPostfixUnaryExpression       = false;
            bool fPrefixUnaryExpression        = false;
            bool fAwaitExpression              = false;
            bool fCastExpression               = false;
            bool fThrowExpression              = false;
            bool fDeclarationExpression        = false;
            bool fIsPatternExpression          = false;

            bool fMemberDeclaration         = false;
            bool fStatement                 = false;
            bool fDoStatement               = false;
            bool fExpressionStatement       = false;
            bool fForEachStatement          = false;
            bool fForStatement              = false;
            bool fIfStatement               = false;
            bool fLocalDeclarationStatement = false;
            bool fReturnStatement           = false;
            bool fSwitchStatement           = false;
            bool fUsingStatement            = false;
            bool fWhileStatement            = false;
            bool fYieldReturnStatement      = false;
            bool fLockStatement             = false;
            bool fBlock = false;
            bool fStatementRefactoring   = false;
            bool fThrowStatement         = false;
            bool fLocalFunctionStatement = false;

            SyntaxNode firstNode = node;

            using (IEnumerator <SyntaxNode> en = node.AncestorsAndSelf().GetEnumerator())
            {
                while (en.MoveNext())
                {
                    node = en.Current;

                    SyntaxKind kind = node.Kind();

                    Debug.WriteLine(kind.ToString());

                    if (!fAccessor &&
                        (node is AccessorDeclarationSyntax accessor))
                    {
                        AccessorDeclarationRefactoring.ComputeRefactorings(this, accessor);
                        fAccessor = true;
                        continue;
                    }

                    if (!fArgument &&
                        kind == SyntaxKind.Argument)
                    {
                        await ArgumentRefactoring.ComputeRefactoringsAsync(this, (ArgumentSyntax)node).ConfigureAwait(false);

                        fArgument = true;
                        continue;
                    }

                    if (!fArgumentList &&
                        kind == SyntaxKind.ArgumentList)
                    {
                        await ArgumentListRefactoring.ComputeRefactoringsAsync(this, (ArgumentListSyntax)node).ConfigureAwait(false);

                        fArgumentList = true;
                        continue;
                    }

                    if (!fAttributeArgumentList &&
                        kind == SyntaxKind.AttributeArgumentList)
                    {
                        await AttributeArgumentListRefactoring.ComputeRefactoringsAsync(this, (AttributeArgumentListSyntax)node).ConfigureAwait(false);

                        fAttributeArgumentList = true;
                        continue;
                    }

                    if (!fArrowExpressionClause &&
                        kind == SyntaxKind.ArrowExpressionClause)
                    {
                        await ArrowExpressionClauseRefactoring.ComputeRefactoringsAsync(this, (ArrowExpressionClauseSyntax)node).ConfigureAwait(false);

                        fArrowExpressionClause = true;
                        continue;
                    }

                    if (!fParameter &&
                        kind == SyntaxKind.Parameter)
                    {
                        await ParameterRefactoring.ComputeRefactoringsAsync(this, (ParameterSyntax)node).ConfigureAwait(false);

                        fParameter = true;
                        continue;
                    }

                    if (!fParameterList &&
                        kind == SyntaxKind.ParameterList)
                    {
                        await ParameterListRefactoring.ComputeRefactoringsAsync(this, (ParameterListSyntax)node).ConfigureAwait(false);

                        fParameterList = true;
                        continue;
                    }

                    if (!fSwitchSection &&
                        kind == SyntaxKind.SwitchSection)
                    {
                        await SwitchSectionRefactoring.ComputeRefactoringsAsync(this, (SwitchSectionSyntax)node).ConfigureAwait(false);

                        fSwitchSection = true;
                        continue;
                    }

                    if (!fVariableDeclaration &&
                        kind == SyntaxKind.VariableDeclaration)
                    {
                        await VariableDeclarationRefactoring.ComputeRefactoringsAsync(this, (VariableDeclarationSyntax)node).ConfigureAwait(false);

                        fVariableDeclaration = true;
                        continue;
                    }

                    if (!fVariableDeclarator &&
                        kind == SyntaxKind.VariableDeclarator)
                    {
                        VariableDeclaratorRefactoring.ComputeRefactorings(this, (VariableDeclaratorSyntax)node);
                        fVariableDeclarator = true;
                        continue;
                    }

                    if (!fInterpolatedStringText &&
                        kind == SyntaxKind.InterpolatedStringText)
                    {
                        await InterpolatedStringTextRefactoring.ComputeRefactoringsAsync(this, (InterpolatedStringTextSyntax)node).ConfigureAwait(false);

                        fInterpolatedStringText = true;
                        continue;
                    }

                    if (!fInterpolation &&
                        kind == SyntaxKind.Interpolation)
                    {
                        InterpolationRefactoring.ComputeRefactorings(this, (InterpolationSyntax)node);
                        fInterpolation = true;
                        continue;
                    }

                    if (!fElseClause &&
                        kind == SyntaxKind.ElseClause)
                    {
                        ElseClauseRefactoring.ComputeRefactorings(this, (ElseClauseSyntax)node);
                        fElseClause = true;
                        continue;
                    }

                    if (!fCaseSwitchLabel &&
                        kind == SyntaxKind.CaseSwitchLabel)
                    {
                        await CaseSwitchLabelRefactoring.ComputeRefactoringsAsync(this, (CaseSwitchLabelSyntax)node).ConfigureAwait(false);

                        fCaseSwitchLabel = true;
                        continue;
                    }

                    if (!fUsingDirective &&
                        kind == SyntaxKind.UsingDirective)
                    {
                        UsingDirectiveRefactoring.ComputeRefactoring(this, (UsingDirectiveSyntax)node);
                        fUsingDirective = true;
                        continue;
                    }

                    if (!fDeclarationPattern &&
                        kind == SyntaxKind.DeclarationPattern)
                    {
                        await DeclarationPatternRefactoring.ComputeRefactoringAsync(this, (DeclarationPatternSyntax)node).ConfigureAwait(false);

                        fDeclarationPattern = true;
                        continue;
                    }

                    if (!fTypeParameterConstraintClause &&
                        kind == SyntaxKind.TypeParameterConstraintClause)
                    {
                        TypeParameterConstraintClauseRefactoring.ComputeRefactoring(this, (TypeParameterConstraintClauseSyntax)node);
                        fTypeParameterConstraintClause = true;
                        continue;
                    }

                    if (node is ExpressionSyntax expression)
                    {
                        if (!fExpression)
                        {
                            await ExpressionRefactoring.ComputeRefactoringsAsync(this, expression).ConfigureAwait(false);

                            fExpression = true;
                        }

                        if (!fAssignmentExpression &&
                            (node is AssignmentExpressionSyntax assignmentExpression))
                        {
                            await AssignmentExpressionRefactoring.ComputeRefactoringsAsync(this, assignmentExpression).ConfigureAwait(false);

                            fAssignmentExpression = true;
                        }

                        if (!fAnonymousMethod &&
                            kind == SyntaxKind.AnonymousMethodExpression)
                        {
                            AnonymousMethodExpressionRefactoring.ComputeRefactorings(this, (AnonymousMethodExpressionSyntax)node);
                            fAnonymousMethod = true;
                        }

                        if (!fBinaryExpression &&
                            (node is BinaryExpressionSyntax binaryExpression))
                        {
                            await BinaryExpressionRefactoring.ComputeRefactoringsAsync(this, binaryExpression).ConfigureAwait(false);

                            fBinaryExpression = true;
                        }

                        if (!fConditionalExpression &&
                            kind == SyntaxKind.ConditionalExpression)
                        {
                            await ConditionalExpressionRefactoring.ComputeRefactoringsAsync(this, (ConditionalExpressionSyntax)expression).ConfigureAwait(false);

                            fConditionalExpression = true;
                        }

                        if (!fQualifiedName &&
                            kind == SyntaxKind.QualifiedName)
                        {
                            await QualifiedNameRefactoring.ComputeRefactoringsAsync(this, (QualifiedNameSyntax)expression).ConfigureAwait(false);

                            fQualifiedName = true;
                        }

                        if (!fGenericName &&
                            kind == SyntaxKind.GenericName)
                        {
                            GenericNameRefactoring.ComputeRefactorings(this, (GenericNameSyntax)expression);
                            fGenericName = true;
                        }

                        if (!fIdentifierName &&
                            kind == SyntaxKind.IdentifierName)
                        {
                            await IdentifierNameRefactoring.ComputeRefactoringsAsync(this, (IdentifierNameSyntax)expression).ConfigureAwait(false);

                            fIdentifierName = true;
                        }

                        if (!fInitializerExpression &&
                            (node is InitializerExpressionSyntax initializer))
                        {
                            await InitializerExpressionRefactoring.ComputeRefactoringsAsync(this, initializer).ConfigureAwait(false);

                            fInitializerExpression = true;
                        }

                        if (!fInterpolatedStringExpression &&
                            kind == SyntaxKind.InterpolatedStringExpression)
                        {
                            InterpolatedStringRefactoring.ComputeRefactorings(this, (InterpolatedStringExpressionSyntax)expression);
                            fInterpolatedStringExpression = true;
                        }

                        if (!fInvocationExpression &&
                            kind == SyntaxKind.InvocationExpression)
                        {
                            await InvocationExpressionRefactoring.ComputeRefactoringsAsync(this, (InvocationExpressionSyntax)expression).ConfigureAwait(false);

                            fInvocationExpression = true;
                        }

                        if (!fLambdaExpression &&
                            (node is LambdaExpressionSyntax lambdaExpression))
                        {
                            LambdaExpressionRefactoring.ComputeRefactorings(this, lambdaExpression);
                            fLambdaExpression = true;
                        }

                        if (!fLiteralExpression &&
                            (node is LiteralExpressionSyntax literalExpression))
                        {
                            await LiteralExpressionRefactoring.ComputeRefactoringsAsync(this, literalExpression).ConfigureAwait(false);

                            fLiteralExpression = true;
                        }

                        if (!fSimpleMemberAccessExpression &&
                            kind == SyntaxKind.SimpleMemberAccessExpression)
                        {
                            await SimpleMemberAccessExpressionRefactoring.ComputeRefactoringAsync(this, (MemberAccessExpressionSyntax)node).ConfigureAwait(false);

                            fSimpleMemberAccessExpression = true;
                        }

                        if (!fParenthesizedExpression &&
                            kind == SyntaxKind.ParenthesizedExpression)
                        {
                            ParenthesizedExpressionRefactoring.ComputeRefactorings(this, (ParenthesizedExpressionSyntax)expression);
                            fParenthesizedExpression = true;
                        }

                        if (!fPostfixUnaryExpression &&
                            (node is PostfixUnaryExpressionSyntax postfixUnaryExpression))
                        {
                            PostfixUnaryExpressionRefactoring.ComputeRefactorings(this, postfixUnaryExpression);
                            fPostfixUnaryExpression = true;
                        }

                        if (!fPrefixUnaryExpression &&
                            (node is PrefixUnaryExpressionSyntax prefixUnaryExpression))
                        {
                            PrefixUnaryExpressionRefactoring.ComputeRefactorings(this, prefixUnaryExpression);
                            fPrefixUnaryExpression = true;
                        }

                        if (!fAwaitExpression &&
                            kind == SyntaxKind.AwaitExpression)
                        {
                            await AwaitExpressionRefactoring.ComputeRefactoringsAsync(this, (AwaitExpressionSyntax)node).ConfigureAwait(false);

                            fAwaitExpression = true;
                        }

                        if (!fCastExpression &&
                            kind == SyntaxKind.CastExpression)
                        {
                            CastExpressionRefactoring.ComputeRefactorings(this, (CastExpressionSyntax)node);
                            fCastExpression = true;
                        }

                        if (!fThrowExpression &&
                            kind == SyntaxKind.ThrowExpression)
                        {
                            await ThrowExpressionRefactoring.ComputeRefactoringsAsync(this, (ThrowExpressionSyntax)node).ConfigureAwait(false);

                            fThrowExpression = true;
                        }

                        if (!fDeclarationExpression &&
                            kind == SyntaxKind.DeclarationExpression)
                        {
                            await DeclarationExpressionRefactoring.ComputeRefactoringsAsync(this, (DeclarationExpressionSyntax)node).ConfigureAwait(false);

                            fDeclarationExpression = true;
                        }

                        if (!fIsPatternExpression &&
                            kind == SyntaxKind.IsPatternExpression)
                        {
                            NegateIsExpressionRefactoring.ComputeRefactoring(this, (IsPatternExpressionSyntax)node);
                            fIsPatternExpression = true;
                        }

                        continue;
                    }

                    if (node is MemberDeclarationSyntax memberDeclaration)
                    {
                        if (!fMemberDeclaration)
                        {
                            await MemberDeclarationRefactoring.ComputeRefactoringsAsync(this, memberDeclaration).ConfigureAwait(false);

                            AttributeListRefactoring.ComputeRefactorings(this, memberDeclaration);
                            await IntroduceConstructorRefactoring.ComputeRefactoringsAsync(this, memberDeclaration).ConfigureAwait(false);

                            fMemberDeclaration = true;
                        }

                        continue;
                    }

                    if (node is StatementSyntax statement)
                    {
                        if (!fDoStatement &&
                            kind == SyntaxKind.DoStatement)
                        {
                            DoStatementRefactoring.ComputeRefactorings(this, (DoStatementSyntax)statement);
                            fDoStatement = true;
                        }

                        if (!fExpressionStatement &&
                            kind == SyntaxKind.ExpressionStatement)
                        {
                            await ExpressionStatementRefactoring.ComputeRefactoringsAsync(this, (ExpressionStatementSyntax)statement).ConfigureAwait(false);

                            fExpressionStatement = true;
                        }

                        if (!fForEachStatement &&
                            kind == SyntaxKind.ForEachStatement)
                        {
                            await ForEachStatementRefactoring.ComputeRefactoringsAsync(this, (ForEachStatementSyntax)statement).ConfigureAwait(false);

                            fForEachStatement = true;
                        }

                        if (!fForStatement &&
                            kind == SyntaxKind.ForStatement)
                        {
                            await ForStatementRefactoring.ComputeRefactoringsAsync(this, (ForStatementSyntax)statement).ConfigureAwait(false);

                            fForStatement = true;
                        }

                        if (!fIfStatement &&
                            kind == SyntaxKind.IfStatement)
                        {
                            await IfStatementRefactoring.ComputeRefactoringsAsync(this, (IfStatementSyntax)statement).ConfigureAwait(false);

                            fIfStatement = true;
                        }

                        if (!fLocalDeclarationStatement &&
                            kind == SyntaxKind.LocalDeclarationStatement)
                        {
                            await LocalDeclarationStatementRefactoring.ComputeRefactoringsAsync(this, (LocalDeclarationStatementSyntax)statement).ConfigureAwait(false);

                            fLocalDeclarationStatement = true;
                        }

                        if (!fReturnStatement &&
                            kind == SyntaxKind.ReturnStatement)
                        {
                            await ReturnStatementRefactoring.ComputeRefactoringsAsync(this, (ReturnStatementSyntax)statement).ConfigureAwait(false);

                            fReturnStatement = true;
                        }

                        if (!fSwitchStatement &&
                            kind == SyntaxKind.SwitchStatement)
                        {
                            await SwitchStatementRefactoring.ComputeRefactoringsAsync(this, (SwitchStatementSyntax)statement).ConfigureAwait(false);

                            fSwitchStatement = true;
                        }

                        if (!fUsingStatement &&
                            kind == SyntaxKind.UsingStatement)
                        {
                            UsingStatementRefactoring.ComputeRefactorings(this, (UsingStatementSyntax)statement);
                            fUsingStatement = true;
                        }

                        if (!fWhileStatement &&
                            kind == SyntaxKind.WhileStatement)
                        {
                            WhileStatementRefactoring.ComputeRefactorings(this, (WhileStatementSyntax)statement);
                            fWhileStatement = true;
                        }

                        if (!fYieldReturnStatement &&
                            (node is YieldStatementSyntax yieldStatement))
                        {
                            await YieldStatementRefactoring.ComputeRefactoringsAsync(this, yieldStatement).ConfigureAwait(false);

                            fYieldReturnStatement = true;
                        }

                        if (!fLockStatement &&
                            kind == SyntaxKind.LockStatement)
                        {
                            LockStatementRefactoring.ComputeRefactorings(this, (LockStatementSyntax)node);
                            fLockStatement = true;
                        }

                        if (!fBlock &&
                            kind == SyntaxKind.Block)
                        {
                            await BlockRefactoring.ComputeRefactoringAsync(this, (BlockSyntax)node).ConfigureAwait(false);

                            fBlock = true;
                        }

                        if (!fThrowStatement &&
                            kind == SyntaxKind.ThrowStatement)
                        {
                            await ThrowStatementRefactoring.ComputeRefactoringAsync(this, (ThrowStatementSyntax)node).ConfigureAwait(false);

                            fThrowStatement = true;
                        }

                        if (!fLocalFunctionStatement &&
                            kind == SyntaxKind.LocalFunctionStatement)
                        {
                            await LocalFunctionStatementRefactoring.ComputeRefactoringsAsync(this, (LocalFunctionStatementSyntax)node).ConfigureAwait(false);

                            fLocalFunctionStatement = true;
                        }

                        if (!fStatement)
                        {
                            AddBracesRefactoring.ComputeRefactoring(this, statement);
                            RemoveBracesRefactoring.ComputeRefactoring(this, statement);
                            ExtractStatementRefactoring.ComputeRefactoring(this, statement);
                            EmbeddedStatementRefactoring.ComputeRefactoring(this, statement);
                            fStatement = true;
                        }

                        if (!fStatementRefactoring)
                        {
                            if (kind == SyntaxKind.Block)
                            {
                                StatementRefactoring.ComputeRefactoring(this, (BlockSyntax)node);
                                fStatementRefactoring = true;
                            }
                            else if (kind == SyntaxKind.SwitchStatement)
                            {
                                StatementRefactoring.ComputeRefactoring(this, (SwitchStatementSyntax)node);
                                fStatementRefactoring = true;
                            }
                        }

                        continue;
                    }
                }
            }

            await SyntaxNodeRefactoring.ComputeRefactoringsAsync(this, firstNode).ConfigureAwait(false);

            CommentTriviaRefactoring.ComputeRefactorings(this, firstNode);
        }
示例#2
0
        public async Task ComputeRefactoringsForNodeAsync()
        {
            SyntaxNode node = Root.FindNode(Span, findInsideTrivia: false, getInnermostNodeForTie: true);

            if (node == null)
            {
                return;
            }

            RefactoringFlags flags = RefactoringFlagsCache.GetInstance();

            flags.Reset();

            SyntaxNode firstNode = node;

            for (; node != null; node = node.GetParent(ascendOutOfTrivia: true))
            {
                SyntaxKind kind = node.Kind();

                if (!flags.IsSet(Flag.Expression) &&
                    node is ExpressionSyntax expression)
                {
                    await ExpressionRefactoring.ComputeRefactoringsAsync(this, expression).ConfigureAwait(false);

                    flags.Set(Flag.Expression);
                }

                if (!flags.IsSet(Flag.MemberDeclaration) &&
                    node is MemberDeclarationSyntax memberDeclaration)
                {
                    await MemberDeclarationRefactoring.ComputeRefactoringsAsync(this, memberDeclaration).ConfigureAwait(false);

                    AttributeListRefactoring.ComputeRefactorings(this, memberDeclaration);
                    await IntroduceConstructorRefactoring.ComputeRefactoringsAsync(this, memberDeclaration).ConfigureAwait(false);

                    flags.Set(Flag.MemberDeclaration);
                }

                switch (kind)
                {
                case SyntaxKind.AddAccessorDeclaration:
                case SyntaxKind.RemoveAccessorDeclaration:
                case SyntaxKind.GetAccessorDeclaration:
                case SyntaxKind.SetAccessorDeclaration:
                case SyntaxKind.InitAccessorDeclaration:
                case SyntaxKind.UnknownAccessorDeclaration:
                {
                    if (flags.IsSet(Flag.Accessor))
                    {
                        continue;
                    }

                    AccessorDeclarationRefactoring.ComputeRefactorings(this, (AccessorDeclarationSyntax)node);
                    flags.Set(Flag.Accessor);
                    continue;
                }

                case SyntaxKind.Argument:
                {
                    if (flags.IsSet(Flag.Argument))
                    {
                        continue;
                    }

                    await ArgumentRefactoring.ComputeRefactoringsAsync(this, (ArgumentSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.Argument);
                    continue;
                }

                case SyntaxKind.ArgumentList:
                {
                    if (flags.IsSet(Flag.ArgumentList))
                    {
                        continue;
                    }

                    await ArgumentListRefactoring.ComputeRefactoringsAsync(this, (ArgumentListSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.ArgumentList);
                    continue;
                }

                case SyntaxKind.AttributeArgumentList:
                {
                    if (flags.IsSet(Flag.AttributeArgumentList))
                    {
                        continue;
                    }

                    await AttributeArgumentListRefactoring.ComputeRefactoringsAsync(this, (AttributeArgumentListSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.AttributeArgumentList);
                    continue;
                }

                case SyntaxKind.ArrowExpressionClause:
                {
                    if (flags.IsSet(Flag.ArrowExpressionClause))
                    {
                        continue;
                    }

                    await ArrowExpressionClauseRefactoring.ComputeRefactoringsAsync(this, (ArrowExpressionClauseSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.ArrowExpressionClause);
                    continue;
                }

                case SyntaxKind.Parameter:
                {
                    if (flags.IsSet(Flag.Parameter))
                    {
                        continue;
                    }

                    await ParameterRefactoring.ComputeRefactoringsAsync(this, (ParameterSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.Parameter);
                    continue;
                }

                case SyntaxKind.ParameterList:
                {
                    if (flags.IsSet(Flag.ParameterList))
                    {
                        continue;
                    }

                    await ParameterListRefactoring.ComputeRefactoringsAsync(this, (ParameterListSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.ParameterList);
                    continue;
                }

                case SyntaxKind.SwitchSection:
                {
                    if (flags.IsSet(Flag.SwitchSection))
                    {
                        continue;
                    }

                    await SwitchSectionRefactoring.ComputeRefactoringsAsync(this, (SwitchSectionSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.SwitchSection);
                    continue;
                }

                case SyntaxKind.VariableDeclaration:
                {
                    if (flags.IsSet(Flag.VariableDeclaration))
                    {
                        continue;
                    }

                    await VariableDeclarationRefactoring.ComputeRefactoringsAsync(this, (VariableDeclarationSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.VariableDeclaration);
                    continue;
                }

                case SyntaxKind.VariableDeclarator:
                {
                    if (flags.IsSet(Flag.VariableDeclarator))
                    {
                        continue;
                    }

                    VariableDeclaratorRefactoring.ComputeRefactorings(this, (VariableDeclaratorSyntax)node);
                    flags.Set(Flag.VariableDeclarator);
                    continue;
                }

                case SyntaxKind.InterpolatedStringText:
                {
                    if (flags.IsSet(Flag.InterpolatedStringText))
                    {
                        continue;
                    }

                    await InterpolatedStringTextRefactoring.ComputeRefactoringsAsync(this, (InterpolatedStringTextSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.InterpolatedStringText);
                    continue;
                }

                case SyntaxKind.Interpolation:
                {
                    if (flags.IsSet(Flag.Interpolation))
                    {
                        continue;
                    }

                    InterpolationRefactoring.ComputeRefactorings(this, (InterpolationSyntax)node);
                    flags.Set(Flag.Interpolation);
                    continue;
                }

                case SyntaxKind.ElseClause:
                {
                    if (flags.IsSet(Flag.ElseClause))
                    {
                        continue;
                    }

                    ElseClauseRefactoring.ComputeRefactorings(this, (ElseClauseSyntax)node);
                    flags.Set(Flag.ElseClause);
                    continue;
                }

                case SyntaxKind.CaseSwitchLabel:
                {
                    if (flags.IsSet(Flag.CaseSwitchLabel))
                    {
                        continue;
                    }

                    await CaseSwitchLabelRefactoring.ComputeRefactoringsAsync(this, (CaseSwitchLabelSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.CaseSwitchLabel);
                    continue;
                }

                case SyntaxKind.UsingDirective:
                {
                    if (flags.IsSet(Flag.UsingDirective))
                    {
                        continue;
                    }

                    UsingDirectiveRefactoring.ComputeRefactoring(this, (UsingDirectiveSyntax)node);
                    flags.Set(Flag.UsingDirective);
                    continue;
                }

                case SyntaxKind.DeclarationPattern:
                {
                    if (flags.IsSet(Flag.DeclarationPattern))
                    {
                        continue;
                    }

                    await DeclarationPatternRefactoring.ComputeRefactoringAsync(this, (DeclarationPatternSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.DeclarationPattern);
                    continue;
                }

                case SyntaxKind.TypeParameterConstraintClause:
                {
                    if (flags.IsSet(Flag.TypeParameterConstraintClause))
                    {
                        continue;
                    }

                    TypeParameterConstraintClauseRefactoring.ComputeRefactoring(this, (TypeParameterConstraintClauseSyntax)node);
                    flags.Set(Flag.TypeParameterConstraintClause);
                    continue;
                }

                case SyntaxKind.Attribute:
                {
                    if (flags.IsSet(Flag.Attribute))
                    {
                        continue;
                    }

                    await AttributeRefactoring.ComputeRefactoringAsync(this, (AttributeSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.Attribute);
                    continue;
                }

                case SyntaxKind.SimpleAssignmentExpression:
                case SyntaxKind.AddAssignmentExpression:
                case SyntaxKind.SubtractAssignmentExpression:
                case SyntaxKind.MultiplyAssignmentExpression:
                case SyntaxKind.DivideAssignmentExpression:
                case SyntaxKind.ModuloAssignmentExpression:
                case SyntaxKind.AndAssignmentExpression:
                case SyntaxKind.ExclusiveOrAssignmentExpression:
                case SyntaxKind.OrAssignmentExpression:
                case SyntaxKind.LeftShiftAssignmentExpression:
                case SyntaxKind.RightShiftAssignmentExpression:
                {
                    if (flags.IsSet(Flag.AssignmentExpression))
                    {
                        continue;
                    }

                    await AssignmentExpressionRefactoring.ComputeRefactoringsAsync(this, (AssignmentExpressionSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.AssignmentExpression);
                    continue;
                }

                case SyntaxKind.AnonymousMethodExpression:
                {
                    if (flags.IsSet(Flag.AnonymousMethod))
                    {
                        continue;
                    }

                    AnonymousMethodExpressionRefactoring.ComputeRefactorings(this, (AnonymousMethodExpressionSyntax)node);
                    flags.Set(Flag.AnonymousMethod);
                    continue;
                }

                case SyntaxKind.AddExpression:
                case SyntaxKind.SubtractExpression:
                case SyntaxKind.MultiplyExpression:
                case SyntaxKind.DivideExpression:
                case SyntaxKind.ModuloExpression:
                case SyntaxKind.LeftShiftExpression:
                case SyntaxKind.RightShiftExpression:
                case SyntaxKind.LogicalOrExpression:
                case SyntaxKind.LogicalAndExpression:
                case SyntaxKind.BitwiseOrExpression:
                case SyntaxKind.BitwiseAndExpression:
                case SyntaxKind.ExclusiveOrExpression:
                case SyntaxKind.EqualsExpression:
                case SyntaxKind.NotEqualsExpression:
                case SyntaxKind.LessThanExpression:
                case SyntaxKind.LessThanOrEqualExpression:
                case SyntaxKind.GreaterThanExpression:
                case SyntaxKind.GreaterThanOrEqualExpression:
                case SyntaxKind.IsExpression:
                case SyntaxKind.AsExpression:
                case SyntaxKind.CoalesceExpression:
                {
                    if (flags.IsSet(Flag.BinaryExpression))
                    {
                        continue;
                    }

                    await BinaryExpressionRefactoring.ComputeRefactoringsAsync(this, (BinaryExpressionSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.BinaryExpression);
                    continue;
                }

                case SyntaxKind.ConditionalExpression:
                {
                    if (flags.IsSet(Flag.ConditionalExpression))
                    {
                        continue;
                    }

                    await ConditionalExpressionRefactoring.ComputeRefactoringsAsync(this, (ConditionalExpressionSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.ConditionalExpression);
                    continue;
                }

                case SyntaxKind.QualifiedName:
                {
                    if (flags.IsSet(Flag.QualifiedName))
                    {
                        continue;
                    }

                    await QualifiedNameRefactoring.ComputeRefactoringsAsync(this, (QualifiedNameSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.QualifiedName);
                    continue;
                }

                case SyntaxKind.GenericName:
                {
                    if (flags.IsSet(Flag.GenericName))
                    {
                        continue;
                    }

                    GenericNameRefactoring.ComputeRefactorings(this, (GenericNameSyntax)node);
                    flags.Set(Flag.GenericName);
                    continue;
                }

                case SyntaxKind.IdentifierName:
                {
                    if (flags.IsSet(Flag.IdentifierName))
                    {
                        continue;
                    }

                    await IdentifierNameRefactoring.ComputeRefactoringsAsync(this, (IdentifierNameSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.IdentifierName);
                    continue;
                }

                case SyntaxKind.ArrayInitializerExpression:
                case SyntaxKind.CollectionInitializerExpression:
                case SyntaxKind.ComplexElementInitializerExpression:
                case SyntaxKind.ObjectInitializerExpression:
                {
                    if (flags.IsSet(Flag.InitializerExpression))
                    {
                        continue;
                    }

                    await InitializerExpressionRefactoring.ComputeRefactoringsAsync(this, (InitializerExpressionSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.InitializerExpression);
                    continue;
                }

                case SyntaxKind.InterpolatedStringExpression:
                {
                    if (flags.IsSet(Flag.InterpolatedStringExpression))
                    {
                        continue;
                    }

                    InterpolatedStringRefactoring.ComputeRefactorings(this, (InterpolatedStringExpressionSyntax)node);
                    flags.Set(Flag.InterpolatedStringExpression);
                    continue;
                }

                case SyntaxKind.InvocationExpression:
                {
                    if (flags.IsSet(Flag.InvocationExpression))
                    {
                        continue;
                    }

                    await InvocationExpressionRefactoring.ComputeRefactoringsAsync(this, (InvocationExpressionSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.InvocationExpression);
                    continue;
                }

                case SyntaxKind.SimpleLambdaExpression:
                case SyntaxKind.ParenthesizedLambdaExpression:
                {
                    if (flags.IsSet(Flag.LambdaExpression))
                    {
                        continue;
                    }

                    await LambdaExpressionRefactoring.ComputeRefactoringsAsync(this, (LambdaExpressionSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.LambdaExpression);
                    continue;
                }

                case SyntaxKind.CharacterLiteralExpression:
                case SyntaxKind.DefaultLiteralExpression:
                case SyntaxKind.FalseLiteralExpression:
                case SyntaxKind.NullLiteralExpression:
                case SyntaxKind.NumericLiteralExpression:
                case SyntaxKind.StringLiteralExpression:
                case SyntaxKind.TrueLiteralExpression:
                {
                    if (flags.IsSet(Flag.LiteralExpression))
                    {
                        continue;
                    }

                    await LiteralExpressionRefactoring.ComputeRefactoringsAsync(this, (LiteralExpressionSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.LiteralExpression);
                    continue;
                }

                case SyntaxKind.SimpleMemberAccessExpression:
                {
                    if (flags.IsSet(Flag.SimpleMemberAccessExpression))
                    {
                        continue;
                    }

                    await SimpleMemberAccessExpressionRefactoring.ComputeRefactoringAsync(this, (MemberAccessExpressionSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.SimpleMemberAccessExpression);
                    continue;
                }

                case SyntaxKind.ConditionalAccessExpression:
                {
                    if (flags.IsSet(Flag.ConditionalAccessExpression))
                    {
                        continue;
                    }

                    await ConditionalAccessExpressionRefactoring.ComputeRefactoringAsync(this, (ConditionalAccessExpressionSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.ConditionalAccessExpression);
                    continue;
                }

                case SyntaxKind.ParenthesizedExpression:
                {
                    if (flags.IsSet(Flag.ParenthesizedExpression))
                    {
                        continue;
                    }

                    ParenthesizedExpressionRefactoring.ComputeRefactorings(this, (ParenthesizedExpressionSyntax)node);
                    flags.Set(Flag.ParenthesizedExpression);
                    continue;
                }

                case SyntaxKind.PostDecrementExpression:
                case SyntaxKind.PostIncrementExpression:
                {
                    if (flags.IsSet(Flag.PostfixUnaryExpression))
                    {
                        continue;
                    }

                    PostfixUnaryExpressionRefactoring.ComputeRefactorings(this, (PostfixUnaryExpressionSyntax)node);
                    flags.Set(Flag.PostfixUnaryExpression);
                    continue;
                }

                case SyntaxKind.UnaryPlusExpression:
                case SyntaxKind.UnaryMinusExpression:
                case SyntaxKind.BitwiseNotExpression:
                case SyntaxKind.LogicalNotExpression:
                case SyntaxKind.PreIncrementExpression:
                case SyntaxKind.PreDecrementExpression:
                case SyntaxKind.AddressOfExpression:
                case SyntaxKind.PointerIndirectionExpression:
                {
                    if (flags.IsSet(Flag.PrefixUnaryExpression))
                    {
                        continue;
                    }

                    PrefixUnaryExpressionRefactoring.ComputeRefactorings(this, (PrefixUnaryExpressionSyntax)node);
                    flags.Set(Flag.PrefixUnaryExpression);
                    continue;
                }

                case SyntaxKind.AwaitExpression:
                {
                    if (flags.IsSet(Flag.AwaitExpression))
                    {
                        continue;
                    }

                    flags.Set(Flag.AwaitExpression);
                    continue;
                }

                case SyntaxKind.CastExpression:
                {
                    if (flags.IsSet(Flag.CastExpression))
                    {
                        continue;
                    }

                    await CastExpressionRefactoring.ComputeRefactoringsAsync(this, (CastExpressionSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.CastExpression);
                    continue;
                }

                case SyntaxKind.ThrowExpression:
                {
                    if (flags.IsSet(Flag.ThrowExpression))
                    {
                        continue;
                    }

                    await ThrowExpressionRefactoring.ComputeRefactoringsAsync(this, (ThrowExpressionSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.ThrowExpression);
                    continue;
                }

                case SyntaxKind.DeclarationExpression:
                {
                    if (flags.IsSet(Flag.DeclarationExpression))
                    {
                        continue;
                    }

                    await DeclarationExpressionRefactoring.ComputeRefactoringsAsync(this, (DeclarationExpressionSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.DeclarationExpression);
                    continue;
                }

                case SyntaxKind.IsPatternExpression:
                {
                    if (flags.IsSet(Flag.IsPatternExpression))
                    {
                        continue;
                    }

                    InvertIsExpressionRefactoring.ComputeRefactoring(this, (IsPatternExpressionSyntax)node);
                    flags.Set(Flag.IsPatternExpression);
                    continue;
                }

                case SyntaxKind.SwitchExpression:
                {
                    if (flags.IsSet(Flag.SwitchExpression))
                    {
                        continue;
                    }

                    SwitchExpressionRefactoring.ComputeRefactorings(this, (SwitchExpressionSyntax)node);
                    flags.Set(Flag.SwitchExpression);
                    continue;
                }

                case SyntaxKind.DoStatement:
                {
                    if (flags.IsSet(Flag.LoopStatement))
                    {
                        break;
                    }

                    DoStatementRefactoring.ComputeRefactorings(this, (DoStatementSyntax)node);
                    flags.Set(Flag.LoopStatement);
                    break;
                }

                case SyntaxKind.ExpressionStatement:
                {
                    if (flags.IsSet(Flag.ExpressionStatement))
                    {
                        break;
                    }

                    await ExpressionStatementRefactoring.ComputeRefactoringsAsync(this, (ExpressionStatementSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.ExpressionStatement);
                    break;
                }

                case SyntaxKind.ForEachStatement:
                {
                    if (flags.IsSet(Flag.LoopStatement))
                    {
                        break;
                    }

                    await ForEachStatementRefactoring.ComputeRefactoringsAsync(this, (ForEachStatementSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.LoopStatement);
                    break;
                }

                case SyntaxKind.ForStatement:
                {
                    if (flags.IsSet(Flag.LoopStatement))
                    {
                        break;
                    }

                    await ForStatementRefactoring.ComputeRefactoringsAsync(this, (ForStatementSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.LoopStatement);
                    break;
                }

                case SyntaxKind.IfStatement:
                {
                    if (flags.IsSet(Flag.IfStatement))
                    {
                        break;
                    }

                    await IfStatementRefactoring.ComputeRefactoringsAsync(this, (IfStatementSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.IfStatement);
                    break;
                }

                case SyntaxKind.LocalDeclarationStatement:
                {
                    if (flags.IsSet(Flag.LocalDeclarationStatement))
                    {
                        break;
                    }

                    await LocalDeclarationStatementRefactoring.ComputeRefactoringsAsync(this, (LocalDeclarationStatementSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.LocalDeclarationStatement);
                    break;
                }

                case SyntaxKind.ReturnStatement:
                {
                    if (flags.IsSet(Flag.ReturnStatement))
                    {
                        break;
                    }

                    await ReturnStatementRefactoring.ComputeRefactoringsAsync(this, (ReturnStatementSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.ReturnStatement);
                    break;
                }

                case SyntaxKind.SwitchStatement:
                {
                    if (flags.IsSet(Flag.SwitchStatement))
                    {
                        break;
                    }

                    await SwitchStatementRefactoring.ComputeRefactoringsAsync(this, (SwitchStatementSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.SwitchStatement);
                    break;
                }

                case SyntaxKind.UsingStatement:
                {
                    if (flags.IsSet(Flag.UsingStatement))
                    {
                        break;
                    }

                    UsingStatementRefactoring.ComputeRefactorings(this, (UsingStatementSyntax)node);
                    flags.Set(Flag.UsingStatement);
                    break;
                }

                case SyntaxKind.WhileStatement:
                {
                    if (flags.IsSet(Flag.LoopStatement))
                    {
                        break;
                    }

                    WhileStatementRefactoring.ComputeRefactorings(this, (WhileStatementSyntax)node);
                    flags.Set(Flag.LoopStatement);
                    break;
                }

                case SyntaxKind.YieldBreakStatement:
                case SyntaxKind.YieldReturnStatement:
                {
                    if (flags.IsSet(Flag.YieldStatement))
                    {
                        break;
                    }

                    await YieldStatementRefactoring.ComputeRefactoringsAsync(this, (YieldStatementSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.YieldStatement);
                    break;
                }

                case SyntaxKind.LockStatement:
                {
                    if (flags.IsSet(Flag.LockStatement))
                    {
                        break;
                    }

                    LockStatementRefactoring.ComputeRefactorings(this, (LockStatementSyntax)node);
                    flags.Set(Flag.LockStatement);
                    break;
                }

                case SyntaxKind.Block:
                {
                    if (flags.IsSet(Flag.Block))
                    {
                        break;
                    }

                    await BlockRefactoring.ComputeRefactoringAsync(this, (BlockSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.Block);
                    break;
                }

                case SyntaxKind.ThrowStatement:
                {
                    if (flags.IsSet(Flag.ThrowStatement))
                    {
                        break;
                    }

                    await ThrowStatementRefactoring.ComputeRefactoringAsync(this, (ThrowStatementSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.ThrowStatement);
                    break;
                }

                case SyntaxKind.LocalFunctionStatement:
                {
                    if (flags.IsSet(Flag.LocalFunctionStatement))
                    {
                        break;
                    }

                    await LocalFunctionStatementRefactoring.ComputeRefactoringsAsync(this, (LocalFunctionStatementSyntax)node).ConfigureAwait(false);

                    flags.Set(Flag.LocalFunctionStatement);
                    break;
                }

                case SyntaxKind.UnsafeStatement:
                {
                    if (flags.IsSet(Flag.UnsafeStatement))
                    {
                        break;
                    }

                    UnsafeStatementRefactoring.ComputeRefactorings(this, (UnsafeStatementSyntax)node);
                    flags.Set(Flag.UnsafeStatement);
                    break;
                }
                }

                if (!flags.IsSet(Flag.Statement) &&
                    node is StatementSyntax statement)
                {
                    AddBracesRefactoring.ComputeRefactoring(this, statement);
                    RemoveBracesRefactoring.ComputeRefactoring(this, statement);

                    if (IsRefactoringEnabled(RefactoringIdentifiers.ExtractStatement))
                    {
                        ExtractStatementRefactoring.ComputeRefactoring(this, statement);
                    }

                    EmbeddedStatementRefactoring.ComputeRefactoring(this, statement);
                    flags.Set(Flag.Statement);
                }

                if (!flags.IsSet(Flag.BlockOrSwitchStatement))
                {
                    if (kind == SyntaxKind.Block)
                    {
                        StatementRefactoring.ComputeRefactoring(this, (BlockSyntax)node);
                        flags.Set(Flag.BlockOrSwitchStatement);
                    }
                    else if (kind == SyntaxKind.SwitchStatement)
                    {
                        StatementRefactoring.ComputeRefactoring(this, (SwitchStatementSyntax)node);
                        flags.Set(Flag.BlockOrSwitchStatement);
                    }
                }
            }

            RefactoringFlagsCache.Free(flags);

            await SelectedLinesRefactoring.ComputeRefactoringsAsync(this, firstNode).ConfigureAwait(false);

            CommentTriviaRefactoring.ComputeRefactorings(this, firstNode);
        }
示例#3
0
        public static async Task ComputeRefactoringsForNodeAsync(this RefactoringContext context)
        {
            SyntaxNode node = context.FindNode();

            if (node == null)
            {
                return;
            }

            bool fAccessor               = false;
            bool fArgument               = false;
            bool fArgumentList           = false;
            bool fAttributeArgumentList  = false;
            bool fArrowExpressionClause  = false;
            bool fParameter              = false;
            bool fParameterList          = false;
            bool fSwitchSection          = false;
            bool fVariableDeclaration    = false;
            bool fInterpolatedStringText = false;
            bool fElseClause             = false;
            bool fCaseSwitchLabel        = false;
            bool fUsingDirective         = false;

            bool fExpression                   = false;
            bool fAnonymousMethod              = false;
            bool fAssignmentExpression         = false;
            bool fBinaryExpression             = false;
            bool fConditionalExpression        = false;
            bool fQualifiedName                = false;
            bool fGenericName                  = false;
            bool fIdentifierName               = false;
            bool fInitializerExpression        = false;
            bool fInterpolatedStringExpression = false;
            bool fInterpolation                = false;
            bool fInvocationExpression         = false;
            bool fLambdaExpression             = false;
            bool fLiteralExpression            = false;
            bool fSimpleMemberAccessExpression = false;
            bool fParenthesizedExpression      = false;
            bool fPostfixUnaryExpression       = false;
            bool fPrefixUnaryExpression        = false;
            bool fAwaitExpression              = false;

            bool fMemberDeclaration         = false;
            bool fStatement                 = false;
            bool fDoStatement               = false;
            bool fExpressionStatement       = false;
            bool fForEachStatement          = false;
            bool fForStatement              = false;
            bool fIfStatement               = false;
            bool fLocalDeclarationStatement = false;
            bool fReturnStatement           = false;
            bool fSwitchStatement           = false;
            bool fUsingStatement            = false;
            bool fWhileStatement            = false;
            bool fYieldReturnStatement      = false;
            bool fBlock = false;
            bool fStatementRefactoring = false;

            SyntaxNode firstNode = node;

            using (IEnumerator <SyntaxNode> en = node.AncestorsAndSelf().GetEnumerator())
            {
                while (en.MoveNext())
                {
                    node = en.Current;

                    SyntaxKind kind = node.Kind();

                    Debug.WriteLine(kind.ToString());

                    if (!fAccessor)
                    {
                        var accessor = node as AccessorDeclarationSyntax;
                        if (accessor != null)
                        {
                            AccessorDeclarationRefactoring.ComputeRefactorings(context, accessor);
                            fAccessor = true;
                            continue;
                        }
                    }

                    if (!fArgument &&
                        kind == SyntaxKind.Argument)
                    {
                        await ArgumentRefactoring.ComputeRefactoringsAsync(context, (ArgumentSyntax)node).ConfigureAwait(false);

                        fArgument = true;
                        continue;
                    }

                    if (!fArgumentList &&
                        kind == SyntaxKind.ArgumentList)
                    {
                        await ArgumentListRefactoring.ComputeRefactoringsAsync(context, (ArgumentListSyntax)node).ConfigureAwait(false);

                        fArgumentList = true;
                        continue;
                    }

                    if (!fAttributeArgumentList &&
                        kind == SyntaxKind.AttributeArgumentList)
                    {
                        await AttributeArgumentListRefactoring.ComputeRefactoringsAsync(context, (AttributeArgumentListSyntax)node).ConfigureAwait(false);

                        fAttributeArgumentList = true;
                        continue;
                    }

                    if (!fArrowExpressionClause &&
                        kind == SyntaxKind.ArrowExpressionClause)
                    {
                        await ArrowExpressionClauseRefactoring.ComputeRefactoringsAsync(context, (ArrowExpressionClauseSyntax)node).ConfigureAwait(false);

                        fArrowExpressionClause = true;
                        continue;
                    }

                    if (!fParameter &&
                        kind == SyntaxKind.Parameter)
                    {
                        await ParameterRefactoring.ComputeRefactoringsAsync(context, (ParameterSyntax)node).ConfigureAwait(false);

                        fParameter = true;
                        continue;
                    }

                    if (!fParameterList &&
                        kind == SyntaxKind.ParameterList)
                    {
                        await ParameterListRefactoring.ComputeRefactoringsAsync(context, (ParameterListSyntax)node).ConfigureAwait(false);

                        fParameterList = true;
                        continue;
                    }

                    if (!fSwitchSection &&
                        kind == SyntaxKind.SwitchSection)
                    {
                        await SwitchSectionRefactoring.ComputeRefactoringsAsync(context, (SwitchSectionSyntax)node).ConfigureAwait(false);

                        fSwitchSection = true;
                        continue;
                    }

                    if (!fVariableDeclaration &&
                        kind == SyntaxKind.VariableDeclaration)
                    {
                        await VariableDeclarationRefactoring.ComputeRefactoringsAsync(context, (VariableDeclarationSyntax)node).ConfigureAwait(false);

                        fVariableDeclaration = true;
                        continue;
                    }

                    if (!fInterpolatedStringText &&
                        kind == SyntaxKind.InterpolatedStringText)
                    {
                        InterpolatedStringTextRefactoring.ComputeRefactorings(context, (InterpolatedStringTextSyntax)node);
                        fInterpolatedStringText = true;
                        continue;
                    }

                    if (!fInterpolation &&
                        kind == SyntaxKind.Interpolation)
                    {
                        InterpolationRefactoring.ComputeRefactorings(context, (InterpolationSyntax)node);
                        fInterpolation = true;
                        continue;
                    }

                    if (!fElseClause &&
                        kind == SyntaxKind.ElseClause)
                    {
                        ElseClauseRefactoring.ComputeRefactorings(context, (ElseClauseSyntax)node);
                        fElseClause = true;
                        continue;
                    }

                    if (!fCaseSwitchLabel &&
                        kind == SyntaxKind.CaseSwitchLabel)
                    {
                        await CaseSwitchLabelRefactoring.ComputeRefactoringsAsync(context, (CaseSwitchLabelSyntax)node).ConfigureAwait(false);

                        fCaseSwitchLabel = true;
                        continue;
                    }

                    if (!fUsingDirective &&
                        kind == SyntaxKind.UsingDirective)
                    {
                        UsingDirectiveRefactoring.ComputeRefactoring(context, (UsingDirectiveSyntax)node);
                        fUsingDirective = true;
                        continue;
                    }

                    var expression = node as ExpressionSyntax;
                    if (expression != null)
                    {
                        if (!fExpression)
                        {
                            ExpressionRefactoring.ComputeRefactorings(context, expression);
                            fExpression = true;
                        }

                        if (!fAssignmentExpression)
                        {
                            var assignmentExpression = node as AssignmentExpressionSyntax;
                            if (assignmentExpression != null)
                            {
                                await AssignmentExpressionRefactoring.ComputeRefactoringsAsync(context, assignmentExpression).ConfigureAwait(false);

                                fAssignmentExpression = true;
                            }
                        }

                        if (!fAnonymousMethod &&
                            kind == SyntaxKind.AnonymousMethodExpression)
                        {
                            AnonymousMethodExpressionRefactoring.ComputeRefactorings(context, (AnonymousMethodExpressionSyntax)node);
                            fAnonymousMethod = true;
                        }

                        if (!fBinaryExpression)
                        {
                            var binaryExpression = node as BinaryExpressionSyntax;
                            if (binaryExpression != null)
                            {
                                await BinaryExpressionRefactoring.ComputeRefactoringsAsync(context, binaryExpression).ConfigureAwait(false);

                                fBinaryExpression = true;
                            }
                        }

                        if (!fConditionalExpression &&
                            kind == SyntaxKind.ConditionalExpression)
                        {
                            ConditionalExpressionRefactoring.ComputeRefactorings(context, (ConditionalExpressionSyntax)expression);
                            fConditionalExpression = true;
                        }

                        if (!fQualifiedName &&
                            kind == SyntaxKind.QualifiedName)
                        {
                            await QualifiedNameRefactoring.ComputeRefactoringsAsync(context, (QualifiedNameSyntax)expression).ConfigureAwait(false);

                            fQualifiedName = true;
                        }

                        if (!fGenericName &&
                            kind == SyntaxKind.GenericName)
                        {
                            GenericNameRefactoring.ComputeRefactorings(context, (GenericNameSyntax)expression);
                            fGenericName = true;
                        }

                        if (!fIdentifierName &&
                            kind == SyntaxKind.IdentifierName)
                        {
                            await IdentifierNameRefactoring.ComputeRefactoringsAsync(context, (IdentifierNameSyntax)expression).ConfigureAwait(false);

                            fIdentifierName = true;
                        }

                        if (!fInitializerExpression)
                        {
                            var initializer = node as InitializerExpressionSyntax;
                            if (initializer != null)
                            {
                                await InitializerExpressionRefactoring.ComputeRefactoringsAsync(context, initializer).ConfigureAwait(false);

                                fInitializerExpression = true;
                            }
                        }

                        if (!fInterpolatedStringExpression &&
                            kind == SyntaxKind.InterpolatedStringExpression)
                        {
                            InterpolatedStringRefactoring.ComputeRefactorings(context, (InterpolatedStringExpressionSyntax)expression);
                            fInterpolatedStringExpression = true;
                        }

                        if (!fInvocationExpression &&
                            kind == SyntaxKind.InvocationExpression)
                        {
                            await InvocationExpressionRefactoring.ComputeRefactoringsAsync(context, (InvocationExpressionSyntax)expression).ConfigureAwait(false);

                            fInvocationExpression = true;
                        }

                        if (!fLambdaExpression)
                        {
                            var lambdaExpression = node as LambdaExpressionSyntax;
                            if (lambdaExpression != null)
                            {
                                LambdaExpressionRefactoring.ComputeRefactorings(context, lambdaExpression);
                                fLambdaExpression = true;
                            }
                        }

                        if (!fLiteralExpression)
                        {
                            var literalExpression = node as LiteralExpressionSyntax;
                            if (literalExpression != null)
                            {
                                LiteralExpressionRefactoring.ComputeRefactorings(context, literalExpression);
                                fLiteralExpression = true;
                            }
                        }

                        if (!fSimpleMemberAccessExpression &&
                            kind == SyntaxKind.SimpleMemberAccessExpression)
                        {
                            await SimpleMemberAccessExpressionRefactoring.ComputeRefactoringAsync(context, (MemberAccessExpressionSyntax)node).ConfigureAwait(false);

                            fSimpleMemberAccessExpression = true;
                        }

                        if (!fParenthesizedExpression &&
                            kind == SyntaxKind.ParenthesizedExpression)
                        {
                            ParenthesizedExpressionRefactoring.ComputeRefactorings(context, (ParenthesizedExpressionSyntax)expression);
                            fParenthesizedExpression = true;
                        }

                        if (!fPostfixUnaryExpression)
                        {
                            var postfixUnaryExpression = node as PostfixUnaryExpressionSyntax;
                            if (postfixUnaryExpression != null)
                            {
                                PostfixUnaryExpressionRefactoring.ComputeRefactorings(context, postfixUnaryExpression);
                                fPostfixUnaryExpression = true;
                            }
                        }

                        if (!fPrefixUnaryExpression)
                        {
                            var prefixUnaryExpression = node as PrefixUnaryExpressionSyntax;
                            if (prefixUnaryExpression != null)
                            {
                                PrefixUnaryExpressionRefactoring.ComputeRefactorings(context, prefixUnaryExpression);
                                fPrefixUnaryExpression = true;
                            }
                        }

                        if (!fAwaitExpression &&
                            kind == SyntaxKind.AwaitExpression)
                        {
                            await AwaitExpressionRefactoring.ComputeRefactoringsAsync(context, (AwaitExpressionSyntax)node).ConfigureAwait(false);

                            fAwaitExpression = true;
                        }

                        continue;
                    }

                    var memberDeclaration = node as MemberDeclarationSyntax;
                    if (memberDeclaration != null)
                    {
                        if (!fMemberDeclaration)
                        {
                            await MemberDeclarationRefactoring.ComputeRefactoringsAsync(context, memberDeclaration).ConfigureAwait(false);

                            AttributeListRefactoring.ComputeRefactorings(context, memberDeclaration);
                            await IntroduceConstructorRefactoring.ComputeRefactoringsAsync(context, memberDeclaration).ConfigureAwait(false);

                            fMemberDeclaration = true;
                        }

                        continue;
                    }

                    var statement = node as StatementSyntax;
                    if (statement != null)
                    {
                        if (!fDoStatement &&
                            kind == SyntaxKind.DoStatement)
                        {
                            await DoStatementRefactoring.ComputeRefactoringsAsync(context, (DoStatementSyntax)statement).ConfigureAwait(false);

                            fDoStatement = true;
                        }

                        if (!fExpressionStatement &&
                            kind == SyntaxKind.ExpressionStatement)
                        {
                            await ExpressionStatementRefactoring.ComputeRefactoringsAsync(context, (ExpressionStatementSyntax)statement).ConfigureAwait(false);

                            fExpressionStatement = true;
                        }

                        if (!fForEachStatement &&
                            kind == SyntaxKind.ForEachStatement)
                        {
                            await ForEachStatementRefactoring.ComputeRefactoringsAsync(context, (ForEachStatementSyntax)statement).ConfigureAwait(false);

                            fForEachStatement = true;
                        }

                        if (!fForStatement &&
                            kind == SyntaxKind.ForStatement)
                        {
                            await ForStatementRefactoring.ComputeRefactoringsAsync(context, (ForStatementSyntax)statement).ConfigureAwait(false);

                            fForStatement = true;
                        }

                        if (!fIfStatement &&
                            kind == SyntaxKind.IfStatement)
                        {
                            await IfStatementRefactoring.ComputeRefactoringsAsync(context, (IfStatementSyntax)statement).ConfigureAwait(false);

                            fIfStatement = true;
                        }

                        if (!fLocalDeclarationStatement &&
                            kind == SyntaxKind.LocalDeclarationStatement)
                        {
                            await LocalDeclarationStatementRefactoring.ComputeRefactoringsAsync(context, (LocalDeclarationStatementSyntax)statement).ConfigureAwait(false);

                            fLocalDeclarationStatement = true;
                        }

                        if (!fReturnStatement &&
                            kind == SyntaxKind.ReturnStatement)
                        {
                            await ReturnStatementRefactoring.ComputeRefactoringsAsync(context, (ReturnStatementSyntax)statement).ConfigureAwait(false);

                            fReturnStatement = true;
                        }

                        if (!fSwitchStatement &&
                            kind == SyntaxKind.SwitchStatement)
                        {
                            await SwitchStatementRefactoring.ComputeRefactoringsAsync(context, (SwitchStatementSyntax)statement).ConfigureAwait(false);

                            fSwitchStatement = true;
                        }

                        if (!fUsingStatement &&
                            kind == SyntaxKind.UsingStatement)
                        {
                            UsingStatementRefactoring.ComputeRefactorings(context, (UsingStatementSyntax)statement);
                            fUsingStatement = true;
                        }

                        if (!fWhileStatement &&
                            kind == SyntaxKind.WhileStatement)
                        {
                            await WhileStatementRefactoring.ComputeRefactoringsAsync(context, (WhileStatementSyntax)statement).ConfigureAwait(false);

                            fWhileStatement = true;
                        }

                        if (!fYieldReturnStatement)
                        {
                            var yieldStatement = node as YieldStatementSyntax;
                            if (yieldStatement != null)
                            {
                                await YieldReturnStatementRefactoring.ComputeRefactoringsAsync(context, yieldStatement).ConfigureAwait(false);

                                fYieldReturnStatement = true;
                            }
                        }

                        if (!fBlock &&
                            kind == SyntaxKind.Block)
                        {
                            await BlockRefactoring.ComputeRefactoringAsync(context, (BlockSyntax)node).ConfigureAwait(false);

                            fBlock = true;
                        }

                        if (!fStatement)
                        {
                            AddBracesRefactoring.ComputeRefactoring(context, statement);
                            RemoveBracesRefactoring.ComputeRefactoring(context, statement);
                            ExtractStatementRefactoring.ComputeRefactoring(context, statement);
                            fStatement = true;
                        }

                        if (!fStatementRefactoring)
                        {
                            if (kind == SyntaxKind.Block)
                            {
                                StatementRefactoring.ComputeRefactoring(context, (BlockSyntax)node);
                                fStatementRefactoring = true;
                            }
                            else if (kind == SyntaxKind.SwitchStatement)
                            {
                                StatementRefactoring.ComputeRefactoring(context, (SwitchStatementSyntax)node);
                                fStatementRefactoring = true;
                            }
                        }

                        continue;
                    }
                }
            }

            await SyntaxNodeRefactoring.ComputeRefactoringsAsync(context, firstNode).ConfigureAwait(false);

            CommentTriviaRefactoring.ComputeRefactorings(context, firstNode);
        }