Ejemplo n.º 1
0
        public override async Task RegisterCodeFixesAsync(CodeFixContext context)
        {
            SyntaxNode root = await context.GetSyntaxRootAsync().ConfigureAwait(false);

            if (!TryFindFirstAncestorOrSelf(root, context.Span, out InterpolatedStringExpressionSyntax interpolatedString))
            {
                return;
            }

            Document document = context.Document;

            foreach (Diagnostic diagnostic in context.Diagnostics)
            {
                switch (diagnostic.Id)
                {
                case DiagnosticIdentifiers.UnnecessaryInterpolatedString:
                {
                    if (ConvertInterpolatedStringToStringLiteralAnalysis.IsFixable(interpolatedString))
                    {
                        CodeAction codeAction = CodeAction.Create(
                            "Remove '$'",
                            ct => ConvertInterpolatedStringToStringLiteralRefactoring.RefactorAsync(document, interpolatedString, ct),
                            GetEquivalenceKey(diagnostic.Id));

                        context.RegisterCodeFix(codeAction, diagnostic);
                    }
                    else
                    {
                        var interpolation = (InterpolationSyntax)interpolatedString.Contents[0];

                        CodeAction codeAction = CodeAction.Create(
                            $"Replace interpolated string with '{interpolation.Expression}'",
                            ct => UnnecessaryInterpolatedStringRefactoring.RefactorAsync(document, interpolatedString, ct),
                            GetEquivalenceKey(diagnostic.Id));

                        context.RegisterCodeFix(codeAction, diagnostic);
                    }

                    break;
                }

                case DiagnosticIdentifiers.ConvertInterpolatedStringToConcatenation:
                {
                    CodeAction codeAction = CodeAction.Create(
                        "Convert to concatenation",
                        ct => ConvertInterpolatedStringToConcatenationRefactoring.RefactorAsync(document, interpolatedString, ct),
                        GetEquivalenceKey(diagnostic.Id));

                    context.RegisterCodeFix(codeAction, diagnostic);
                    break;
                }
                }
            }
        }
        public static void ComputeRefactorings(RefactoringContext context, InterpolatedStringExpressionSyntax interpolatedString)
        {
            if (context.IsRefactoringEnabled(RefactoringDescriptors.InsertStringInterpolation) &&
                context.Span.IsEmpty &&
                InsertInterpolationRefactoring.CanRefactor(context, interpolatedString))
            {
                context.RegisterRefactoring(
                    "Insert interpolation",
                    ct =>
                {
                    return(InsertInterpolationRefactoring.RefactorAsync(
                               context.Document,
                               interpolatedString,
                               context.Span,
                               addNameOf: false,
                               cancellationToken: ct));
                },
                    RefactoringDescriptors.InsertStringInterpolation);
            }

            if (context.IsRefactoringEnabled(RefactoringDescriptors.ConvertInterpolatedStringToStringLiteral) &&
                ConvertInterpolatedStringToStringLiteralAnalysis.IsFixable(interpolatedString))
            {
                context.RegisterRefactoring(
                    "Remove '$'",
                    ct =>
                {
                    return(ConvertInterpolatedStringToStringLiteralRefactoring.RefactorAsync(
                               context.Document,
                               interpolatedString,
                               ct));
                },
                    RefactoringDescriptors.ConvertInterpolatedStringToStringLiteral);
            }

            if (context.IsRefactoringEnabled(RefactoringDescriptors.ReplaceInterpolatedStringWithInterpolationExpression) &&
                interpolatedString.Span.Contains(context.Span) &&
                ReplaceInterpolatedStringWithInterpolationExpressionRefactoring.CanRefactor(interpolatedString))
            {
                ExpressionSyntax expression = ((InterpolationSyntax)(interpolatedString.Contents[0])).Expression;

                context.RegisterRefactoring(
                    $"Replace interpolated string with '{expression}'",
                    ct =>
                {
                    return(ReplaceInterpolatedStringWithInterpolationExpressionRefactoring.RefactorAsync(
                               context.Document,
                               interpolatedString,
                               ct));
                },
                    RefactoringDescriptors.ReplaceInterpolatedStringWithInterpolationExpression);
            }

            if (context.IsRefactoringEnabled(RefactoringDescriptors.ConvertInterpolatedStringToConcatenation) &&
                context.Span.IsEmptyAndContainedInSpanOrBetweenSpans(interpolatedString))
            {
                ConvertInterpolatedStringToConcatenationRefactoring.ComputeRefactoring(context, interpolatedString);
            }

            if (context.IsRefactoringEnabled(RefactoringDescriptors.ConvertInterpolatedStringToStringFormat) &&
                context.Span.IsEmptyAndContainedInSpanOrBetweenSpans(interpolatedString))
            {
                ConvertInterpolatedStringToStringFormatRefactoring.ComputeRefactoring(context, interpolatedString);
            }
        }