private static async Task ChangeTypeAsync( RefactoringContext context, VariableDeclarationSyntax variableDeclaration) { SemanticModel semanticModel = await context.GetSemanticModelAsync().ConfigureAwait(false); TypeAnalysis analysis = TypeAnalysis.AnalyzeType(variableDeclaration, semanticModel, context.CancellationToken); if (analysis.IsExplicit) { if (analysis.SupportsImplicit && context.IsRefactoringEnabled(RefactoringIdentifiers.ChangeExplicitTypeToVar)) { context.RegisterRefactoring( "Change type to 'var'", cancellationToken => { return(ChangeTypeRefactoring.ChangeTypeToVarAsync( context.Document, variableDeclaration.Type, cancellationToken)); }, RefactoringIdentifiers.ChangeExplicitTypeToVar); } } else if (analysis.SupportsExplicit && context.IsRefactoringEnabled(RefactoringIdentifiers.ChangeVarToExplicitType)) { ITypeSymbol typeSymbol = semanticModel.GetTypeSymbol(variableDeclaration.Type, context.CancellationToken); ChangeType(context, variableDeclaration, typeSymbol, semanticModel, context.CancellationToken); } }
internal static async Task ChangeTypeAsync( RefactoringContext context, ForEachStatementSyntax forEachStatement) { TypeSyntax type = forEachStatement.Type; if (type?.Span.Contains(context.Span) != true) { return; } SemanticModel semanticModel = await context.GetSemanticModelAsync().ConfigureAwait(false); TypeAnalysis analysis = TypeAnalysis.AnalyzeType(forEachStatement, semanticModel); if (analysis.IsExplicit) { if (analysis.SupportsImplicit && context.IsRefactoringEnabled(RefactoringIdentifiers.ChangeExplicitTypeToVar)) { context.RegisterRefactoring( "Change type to 'var'", cancellationToken => ChangeTypeRefactoring.ChangeTypeToVarAsync(context.Document, type, cancellationToken)); } } else if (analysis.SupportsExplicit && context.IsRefactoringEnabled(RefactoringIdentifiers.ChangeVarToExplicitType)) { ITypeSymbol typeSymbol = semanticModel.GetTypeSymbol(type, context.CancellationToken); context.RegisterRefactoring( $"Change type to '{SymbolDisplay.ToMinimalDisplayString(typeSymbol, semanticModel, type.SpanStart, SymbolDisplayFormats.Default)}'", cancellationToken => ChangeTypeRefactoring.ChangeTypeAsync(context.Document, type, typeSymbol, cancellationToken)); } }
private static void AnalyzeForEachStatement(SyntaxNodeAnalysisContext context) { var forEachStatement = (ForEachStatementSyntax)context.Node; TypeAnalysis analysis = TypeAnalysis.AnalyzeType(forEachStatement, context.SemanticModel); if (analysis.IsExplicit && analysis.SupportsImplicit) { context.ReportDiagnostic(DiagnosticDescriptors.UseVarInsteadOfExplicitTypeInForEach, forEachStatement.Type); } }
public static async Task ComputeRefactoringsAsync( RefactoringContext context, DeclarationExpressionSyntax declarationExpression) { if (declarationExpression.Type?.Span.Contains(context.Span) == true && context.IsAnyRefactoringEnabled( RefactoringIdentifiers.ChangeExplicitTypeToVar, RefactoringIdentifiers.ChangeVarToExplicitType)) { SemanticModel semanticModel = await context.GetSemanticModelAsync().ConfigureAwait(false); TypeAnalysis analysis = TypeAnalysis.AnalyzeType(declarationExpression, semanticModel, context.CancellationToken); if (analysis.IsExplicit) { if (analysis.SupportsImplicit && context.IsRefactoringEnabled(RefactoringIdentifiers.ChangeExplicitTypeToVar)) { context.RegisterRefactoring( "Change type to 'var'", cancellationToken => { return(ChangeTypeRefactoring.ChangeTypeToVarAsync( context.Document, declarationExpression.Type, cancellationToken)); }, RefactoringIdentifiers.ChangeExplicitTypeToVar); } } else if (analysis.SupportsExplicit && context.IsRefactoringEnabled(RefactoringIdentifiers.ChangeVarToExplicitType)) { TypeSyntax type = declarationExpression.Type; var localSymbol = semanticModel.GetDeclaredSymbol(declarationExpression.Designation, context.CancellationToken) as ILocalSymbol; ITypeSymbol typeSymbol = localSymbol.Type; context.RegisterRefactoring( $"Change type to '{SymbolDisplay.ToMinimalDisplayString(typeSymbol, semanticModel, type.SpanStart, SymbolDisplayFormats.Default)}'", cancellationToken => ChangeTypeRefactoring.ChangeTypeAsync(context.Document, type, typeSymbol, cancellationToken), RefactoringIdentifiers.ChangeVarToExplicitType); } } }