private static ExpressionSyntax GetNewNode(PrefixUnaryExpressionSyntax logicalNot)
{
SyntaxToken operatorToken = logicalNot.OperatorToken;
ExpressionSyntax operand = logicalNot.Operand;
switch (operand.Kind())
{
case SyntaxKind.TrueLiteralExpression:
case SyntaxKind.FalseLiteralExpression:
{
SyntaxTriviaList leadingTrivia = operatorToken.LeadingTrivia
.AddRange(operatorToken.TrailingTrivia)
.AddRange(operand.GetLeadingTrivia());
LiteralExpressionSyntax expression = (operand.IsKind(SyntaxKind.TrueLiteralExpression))
? FalseLiteralExpression()
: TrueLiteralExpression();
return(expression
.WithLeadingTrivia(leadingTrivia)
.WithTrailingTrivia(logicalNot.GetTrailingTrivia()));
}
case SyntaxKind.LogicalNotExpression:
{
var logicalNot2 = (PrefixUnaryExpressionSyntax)operand;
SyntaxToken operatorToken2 = logicalNot2.OperatorToken;
ExpressionSyntax operand2 = logicalNot2.Operand;
SyntaxTriviaList leadingTrivia = operatorToken.LeadingTrivia
.AddRange(operatorToken.TrailingTrivia)
.AddRange(operatorToken2.LeadingTrivia)
.AddRange(operatorToken2.TrailingTrivia)
.AddRange(operand2.GetLeadingTrivia());
return(operand2
.WithLeadingTrivia(leadingTrivia)
.WithTrailingTrivia(logicalNot.GetTrailingTrivia()));
}
}
return(null);
}