Exemplo n.º 1
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);
        }
Exemplo n.º 2
0
        public static async Task ComputeRefactoringsAsync(RefactoringContext context, BinaryExpressionSyntax binaryExpression)
        {
            SyntaxToken operatorToken = binaryExpression.OperatorToken;

            if (context.IsRefactoringEnabled(RefactoringIdentifiers.InvertOperator) &&
                context.Span.IsEmptyAndContainedInSpanOrBetweenSpans(operatorToken) &&
                InvertOperatorRefactoring.CanBeInverted(operatorToken))
            {
                context.RegisterRefactoring(
                    "Invert operator",
                    cancellationToken => InvertOperatorRefactoring.RefactorAsync(context.Document, operatorToken, cancellationToken),
                    RefactoringIdentifiers.InvertOperator);
            }

            if (context.Span.IsEmptyAndContainedInSpan(operatorToken))
            {
                if (context.IsRefactoringEnabled(RefactoringIdentifiers.InvertBinaryExpression))
                {
                    InvertBinaryExpressionRefactoring.ComputeRefactoring(context, binaryExpression);
                }

                if (context.IsRefactoringEnabled(RefactoringIdentifiers.SwapBinaryOperands))
                {
                    SwapBinaryOperandsRefactoring.ComputeRefactoring(context, binaryExpression);
                }
            }

            if (context.IsRefactoringEnabled(RefactoringIdentifiers.FormatBinaryExpression))
            {
                FormatBinaryExpressionRefactoring.ComputeRefactorings(context, binaryExpression);
            }

            if (context.IsRefactoringEnabled(RefactoringIdentifiers.ExpandCoalesceExpression) &&
                operatorToken.Span.Contains(context.Span))
            {
                ExpandCoalesceExpressionRefactoring.ComputeRefactoring(context, binaryExpression);
            }

            if (context.IsAnyRefactoringEnabled(
                    RefactoringIdentifiers.ExtractExpressionFromCondition,
                    RefactoringIdentifiers.JoinStringExpressions,
                    RefactoringIdentifiers.UseStringBuilderInsteadOfConcatenation) &&
                !context.Span.IsEmpty &&
                binaryExpression.IsKind(SyntaxKind.AddExpression, SyntaxKind.LogicalAndExpression, SyntaxKind.LogicalOrExpression))
            {
                ExpressionChain chain = binaryExpression.AsChain(context.Span);

                ExpressionChain.Enumerator en = chain.GetEnumerator();

                if (en.MoveNext() &&
                    en.MoveNext())
                {
                    if (context.IsRefactoringEnabled(RefactoringIdentifiers.ExtractExpressionFromCondition))
                    {
                        ExtractConditionRefactoring.ComputeRefactoring(context, chain);
                    }

                    if (binaryExpression.IsKind(SyntaxKind.AddExpression))
                    {
                        SemanticModel semanticModel = await context.GetSemanticModelAsync().ConfigureAwait(false);

                        StringConcatenationExpressionInfo concatenationInfo = SyntaxInfo.StringConcatenationExpressionInfo(chain, semanticModel, context.CancellationToken);
                        if (concatenationInfo.Success)
                        {
                            if (context.IsRefactoringEnabled(RefactoringIdentifiers.JoinStringExpressions))
                            {
                                JoinStringExpressionsRefactoring.ComputeRefactoring(context, concatenationInfo);
                            }

                            if (context.IsRefactoringEnabled(RefactoringIdentifiers.UseStringBuilderInsteadOfConcatenation))
                            {
                                UseStringBuilderInsteadOfConcatenationRefactoring.ComputeRefactoring(context, concatenationInfo);
                            }
                        }
                    }
                }
            }

            if (context.IsRefactoringEnabled(RefactoringIdentifiers.ReplaceAsWithCast) &&
                context.Span.IsEmptyAndContainedInSpanOrBetweenSpans(binaryExpression))
            {
                SemanticModel semanticModel = await context.GetSemanticModelAsync().ConfigureAwait(false);

                if (ReplaceAsWithCastAnalysis.IsFixable(binaryExpression, semanticModel, context.CancellationToken))
                {
                    context.RegisterRefactoring(
                        ReplaceAsWithCastRefactoring.Title,
                        cancellationToken => ReplaceAsWithCastRefactoring.RefactorAsync(context.Document, binaryExpression, cancellationToken),
                        RefactoringIdentifiers.ReplaceAsWithCast);
                }
            }

            if (context.IsRefactoringEnabled(RefactoringIdentifiers.InvertIsExpression))
            {
                InvertIsExpressionRefactoring.ComputeRefactoring(context, binaryExpression);
            }

            if (context.Span.IsContainedInSpanOrBetweenSpans(operatorToken))
            {
                if (context.IsRefactoringEnabled(RefactoringIdentifiers.ReplaceEqualsExpressionWithStringEquals))
                {
                    await ReplaceEqualsExpressionWithStringEqualsRefactoring.ComputeRefactoringAsync(context, binaryExpression).ConfigureAwait(false);
                }

                if (context.IsAnyRefactoringEnabled(
                        RefactoringIdentifiers.ReplaceEqualsExpressionWithStringIsNullOrEmpty,
                        RefactoringIdentifiers.ReplaceEqualsExpressionWithStringIsNullOrWhiteSpace))
                {
                    await ReplaceEqualsExpressionRefactoring.ComputeRefactoringsAsync(context, binaryExpression).ConfigureAwait(false);
                }
            }
        }