// NOTE: it would be nice to have constants for OmittedArraySizeException and OmittedTypeArgument,
// but it's non-trivial to introduce such constants, since they would make this class take a dependency
// on the static fields of SyntaxToken (specifically, TokensWithNoTrivia via SyntaxToken.Create). That
// could cause unpredictable behavior, since SyntaxToken's static constructor already depends on the
// static fields of this class (specifically, ElasticZeroSpace).
internal static SyntaxTrivia EndOfLine(string text, bool elastic = false)
{
SyntaxTrivia trivia = null;
// use predefined trivia
switch (text)
{
case "\r":
trivia = elastic ? SyntaxFactory.ElasticCarriageReturn : SyntaxFactory.CarriageReturn;
break;
case "\n":
trivia = elastic ? SyntaxFactory.ElasticLineFeed : SyntaxFactory.LineFeed;
break;
case "\r\n":
trivia = elastic ? SyntaxFactory.ElasticCarriageReturnLineFeed : SyntaxFactory.CarriageReturnLineFeed;
break;
}
// note: predefined trivia might not yet be defined during initialization
if (trivia != null)
{
return(trivia);
}
trivia = SyntaxTrivia.Create(SyntaxKind.EndOfLineTrivia, text);
if (!elastic)
{
return(trivia);
}
return(trivia.WithAnnotationsGreen(new[] { SyntaxAnnotation.ElasticAnnotation }));
}
internal static SyntaxTrivia Whitespace(string text, bool elastic = false)
{
var trivia = SyntaxTrivia.Create(SyntaxKind.WhitespaceTrivia, text);
if (!elastic)
{
return(trivia);
}
return(trivia.WithAnnotationsGreen(new[] { SyntaxAnnotation.ElasticAnnotation }));
}
internal static SyntaxTrivia Comment(string text)
{
if (text.StartsWith("/*", StringComparison.Ordinal))
{
return(SyntaxTrivia.Create(SyntaxKind.MultiLineCommentTrivia, text));
}
else
{
return(SyntaxTrivia.Create(SyntaxKind.SingleLineCommentTrivia, text));
}
}
internal static SyntaxTrivia DocumentationCommentExteriorTrivia(string text)
{
return(SyntaxTrivia.Create(SyntaxKind.DocumentationCommentExteriorTrivia, text));
}
internal static SyntaxTrivia PreprocessingMessage(string text)
{
return(SyntaxTrivia.Create(SyntaxKind.PreprocessingMessageTrivia, text));
}
internal static SyntaxTrivia DisabledText(string text)
{
return(SyntaxTrivia.Create(SyntaxKind.DisabledTextTrivia, text));
}
internal static SyntaxTrivia ConflictMarker(string text) => SyntaxTrivia.Create(SyntaxKind.ConflictMarkerTrivia, text);