public static bool IsOperator(this SyntaxToken token)
{
var kind = token.Kind();
return
((SyntaxFacts.IsAnyUnaryExpression(kind) &&
(token.Parent is PrefixUnaryExpressionSyntax || token.Parent is PostfixUnaryExpressionSyntax)) ||
(SyntaxFacts.IsBinaryExpression(kind) && token.Parent is BinaryExpressionSyntax) ||
(SyntaxFacts.IsAssignmentExpressionOperatorToken(kind) && token.Parent is AssignmentExpressionSyntax));
}
private static bool TryGetTextForOperator(SyntaxToken token, Document document, out string text)
{
if (token.IsKind(SyntaxKind.ExclamationToken) &&
token.Parent.IsKind(SyntaxKind.SuppressNullableWarningExpression))
{
text = Keyword("nullForgiving");
return(true);
}
var syntaxFacts = document.GetLanguageService <ISyntaxFactsService>();
if (syntaxFacts.IsOperator(token) || syntaxFacts.IsPredefinedOperator(token) || SyntaxFacts.IsAssignmentExpressionOperatorToken(token.Kind()))
{
text = Keyword(syntaxFacts.GetText(token.RawKind));
return(true);
}
if (token.IsKind(SyntaxKind.ColonColonToken))
{
text = "::_CSharpKeyword";
return(true);
}
if (token.IsKind(SyntaxKind.ColonToken) && token.Parent is NameColonSyntax)
{
text = "namedParameter_CSharpKeyword";
return(true);
}
if (token.IsKind(SyntaxKind.QuestionToken) && token.Parent is ConditionalExpressionSyntax)
{
text = "?_CSharpKeyword";
return(true);
}
if (token.IsKind(SyntaxKind.EqualsGreaterThanToken))
{
text = "=>_CSharpKeyword";
return(true);
}
text = null;
return(false);
}
private bool TryGetTextForOperator(SyntaxToken token, Document document, out string text)
{
var syntaxFacts = document.GetLanguageService <ISyntaxFactsService>();
if (syntaxFacts.IsOperator(token) || syntaxFacts.IsPredefinedOperator(token) || SyntaxFacts.IsAssignmentExpressionOperatorToken(token.Kind()))
{
text = Keyword(syntaxFacts.GetText(token.RawKind));
return(true);
}
if (token.IsKind(SyntaxKind.ColonColonToken))
{
text = "::_CSharpKeyword";
return(true);
}
if (token.Kind() == SyntaxKind.ColonToken && token.Parent is NameColonSyntax)
{
text = "cs_namedParameter";
return(true);
}
if (token.IsKind(SyntaxKind.QuestionToken) && token.Parent is ConditionalExpressionSyntax)
{
text = "?_CSharpKeyword";
return(true);
}
if (token.IsKind(SyntaxKind.EqualsGreaterThanToken))
{
text = "=>_CSharpKeyword";
return(true);
}
if (token.IsKind(SyntaxKind.PlusEqualsToken))
{
text = "+=_CSharpKeyword";
return(true);
}
if (token.IsKind(SyntaxKind.MinusEqualsToken))
{
text = "-=_CSharpKeyword";
return(true);
}
text = null;
return(false);
}
