private static ExpressionSyntax NegateConditionalExpression(ConditionalExpressionSyntax conditionalExpression)
{
ExpressionSyntax whenTrue = conditionalExpression.WhenTrue;
ExpressionSyntax whenFalse = conditionalExpression.WhenFalse;
if (whenTrue?.IsKind(SyntaxKind.ThrowExpression) == false)
{
whenTrue = whenTrue
.LogicallyNegate()
.ParenthesizeIfNecessary(SyntaxKind.ConditionalExpression)
.WithTriviaFrom(whenTrue);
}
if (whenFalse?.IsKind(SyntaxKind.ThrowExpression) == false)
{
whenFalse = whenFalse
.LogicallyNegate()
.ParenthesizeIfNecessary(SyntaxKind.ConditionalExpression)
.WithTriviaFrom(whenFalse);
}
ConditionalExpressionSyntax newConditionalExpression = conditionalExpression.Update(
conditionalExpression.Condition,
conditionalExpression.QuestionToken,
whenTrue,
conditionalExpression.ColonToken,
whenFalse);
return(newConditionalExpression.WithTriviaFrom(conditionalExpression));
}
private static ExpressionSyntax NegateConditionalExpression(
ConditionalExpressionSyntax conditionalExpression,
SemanticModel semanticModel,
CancellationToken cancellationToken)
{
ExpressionSyntax whenTrue = conditionalExpression.WhenTrue;
ExpressionSyntax whenFalse = conditionalExpression.WhenFalse;
if (whenTrue?.IsKind(SyntaxKind.ThrowExpression) == false)
{
whenTrue = LogicallyNegateAndParenthesize(whenTrue, semanticModel, cancellationToken);
}
if (whenFalse?.IsKind(SyntaxKind.ThrowExpression) == false)
{
whenFalse = LogicallyNegateAndParenthesize(whenFalse, semanticModel, cancellationToken);
}
ConditionalExpressionSyntax newConditionalExpression = conditionalExpression.Update(
conditionalExpression.Condition,
conditionalExpression.QuestionToken,
whenTrue,
conditionalExpression.ColonToken,
whenFalse);
return(newConditionalExpression.WithTriviaFrom(conditionalExpression));
}
public static Task <Document> RefactorAsync(
Document document,
ConditionalExpressionSyntax conditionalExpression,
CancellationToken cancellationToken = default(CancellationToken))
{
ConditionalExpressionSyntax newNode = conditionalExpression.Update(
condition: Negator.LogicallyNegate(conditionalExpression.Condition),
questionToken: conditionalExpression.QuestionToken,
whenTrue: conditionalExpression.WhenFalse.WithTriviaFrom(conditionalExpression.WhenTrue),
colonToken: conditionalExpression.ColonToken,
whenFalse: conditionalExpression.WhenTrue.WithTriviaFrom(conditionalExpression.WhenFalse));
newNode = newNode.WithFormatterAnnotation();
return(document.ReplaceNodeAsync(conditionalExpression, newNode, cancellationToken));
}
public static async Task <Document> RefactorAsync(
Document document,
ConditionalExpressionSyntax conditionalExpression,
CancellationToken cancellationToken = default(CancellationToken))
{
SemanticModel semanticModel = await document.GetSemanticModelAsync(cancellationToken).ConfigureAwait(false);
ConditionalExpressionSyntax newNode = conditionalExpression.Update(
condition: CSharpUtility.LogicallyNegate(conditionalExpression.Condition, semanticModel, cancellationToken),
questionToken: conditionalExpression.QuestionToken,
whenTrue: conditionalExpression.WhenFalse.WithTriviaFrom(conditionalExpression.WhenTrue),
colonToken: conditionalExpression.ColonToken,
whenFalse: conditionalExpression.WhenTrue.WithTriviaFrom(conditionalExpression.WhenFalse));
newNode = newNode.WithFormatterAnnotation();
return(await document.ReplaceNodeAsync(conditionalExpression, newNode, cancellationToken).ConfigureAwait(false));
}
