private async Task <Document> ConvertBitwiseOperationToHasFlagCallAsync(
Document document,
BinaryExpressionSyntax equalsOrNotEquals,
CancellationToken cancellationToken)
{
ExpressionSyntax left = equalsOrNotEquals.Left.WalkDownParentheses();
ExpressionSyntax right = equalsOrNotEquals.Right.WalkDownParentheses();
BinaryExpressionSyntax bitwiseAnd = (left.IsKind(SyntaxKind.BitwiseAndExpression))
? (BinaryExpressionSyntax)left
: (BinaryExpressionSyntax)right;
ExpressionSyntax expression;
ExpressionSyntax argumentExpression;
SemanticModel semanticModel = await document.GetSemanticModelAsync(cancellationToken).ConfigureAwait(false);
if (ConvertHasFlagCallToBitwiseOperationAnalysis.IsSuitableAsArgumentOfHasFlag(bitwiseAnd.Right, semanticModel, cancellationToken))
{
expression = bitwiseAnd.Left;
argumentExpression = bitwiseAnd.Right;
}
else
{
expression = bitwiseAnd.Right;
argumentExpression = bitwiseAnd.Left;
}
ExpressionSyntax newExpression = SimpleMemberInvocationExpression(
expression,
IdentifierName("HasFlag"),
ArgumentList(Argument(argumentExpression.WalkDownParentheses()))).Parenthesize();
if (equalsOrNotEquals.IsKind(SyntaxKind.EqualsExpression))
{
newExpression = LogicalNotExpression(newExpression).Parenthesize();
}
newExpression = newExpression.WithFormatterAnnotation();
return(await document.ReplaceNodeAsync(equalsOrNotEquals, newExpression, cancellationToken).ConfigureAwait(false));
}
public static async Task ComputeRefactoringsAsync(RefactoringContext context, InvocationExpressionSyntax invocationExpression)
{
if (context.IsAnyRefactoringEnabled(
RefactoringIdentifiers.UseElementAccessInsteadOfEnumerableMethod,
RefactoringIdentifiers.InvertLinqMethodCall,
RefactoringIdentifiers.CallExtensionMethodAsInstanceMethod,
RefactoringIdentifiers.CallIndexOfInsteadOfContains))
{
ExpressionSyntax expression = invocationExpression.Expression;
if (expression != null &&
invocationExpression.ArgumentList != null)
{
if (expression.IsKind(SyntaxKind.SimpleMemberAccessExpression) &&
((MemberAccessExpressionSyntax)expression).Name?.Span.Contains(context.Span) == true)
{
if (context.IsRefactoringEnabled(RefactoringIdentifiers.UseElementAccessInsteadOfEnumerableMethod))
{
await UseElementAccessRefactoring.ComputeRefactoringsAsync(context, invocationExpression).ConfigureAwait(false);
}
if (context.IsRefactoringEnabled(RefactoringIdentifiers.InvertLinqMethodCall))
{
SemanticModel semanticModel = await context.GetSemanticModelAsync().ConfigureAwait(false);
InvertLinqMethodCallRefactoring.ComputeRefactoring(context, invocationExpression, semanticModel);
}
if (context.IsRefactoringEnabled(RefactoringIdentifiers.CallIndexOfInsteadOfContains))
{
await CallIndexOfInsteadOfContainsRefactoring.ComputeRefactoringAsync(context, invocationExpression).ConfigureAwait(false);
}
}
if (context.IsRefactoringEnabled(RefactoringIdentifiers.CallExtensionMethodAsInstanceMethod))
{
SyntaxNodeOrToken nodeOrToken = CallExtensionMethodAsInstanceMethodAnalysis.GetNodeOrToken(expression);
if (nodeOrToken.Span.Contains(context.Span))
{
SemanticModel semanticModel = await context.GetSemanticModelAsync().ConfigureAwait(false);
CallExtensionMethodAsInstanceMethodAnalysisResult analysis = CallExtensionMethodAsInstanceMethodAnalysis.Analyze(invocationExpression, semanticModel, allowAnyExpression: true, cancellationToken: context.CancellationToken);
if (analysis.Success)
{
context.RegisterRefactoring(
CallExtensionMethodAsInstanceMethodRefactoring.Title,
cancellationToken =>
{
return(context.Document.ReplaceNodeAsync(
analysis.InvocationExpression,
analysis.NewInvocationExpression,
cancellationToken));
},
RefactoringIdentifiers.CallExtensionMethodAsInstanceMethod);
}
}
}
}
}
if (context.IsRefactoringEnabled(RefactoringIdentifiers.ConvertStringFormatToInterpolatedString) &&
context.SupportsCSharp6)
{
await ConvertStringFormatToInterpolatedStringRefactoring.ComputeRefactoringsAsync(context, invocationExpression).ConfigureAwait(false);
}
if (context.IsRefactoringEnabled(RefactoringIdentifiers.ConvertHasFlagCallToBitwiseOperation))
{
SemanticModel semanticModel = await context.GetSemanticModelAsync().ConfigureAwait(false);
if (ConvertHasFlagCallToBitwiseOperationAnalysis.IsFixable(invocationExpression, semanticModel, context.CancellationToken))
{
context.RegisterRefactoring(
ConvertHasFlagCallToBitwiseOperationRefactoring.Title,
cancellationToken =>
{
return(ConvertHasFlagCallToBitwiseOperationRefactoring.RefactorAsync(
context.Document,
invocationExpression,
semanticModel,
cancellationToken));
},
RefactoringIdentifiers.ConvertHasFlagCallToBitwiseOperation);
}
}
if (context.IsRefactoringEnabled(RefactoringIdentifiers.InlineMethod))
{
await InlineMethodRefactoring.ComputeRefactoringsAsync(context, invocationExpression).ConfigureAwait(false);
}
}
