// 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).
public InternalSyntaxTrivia EndOfLine(string text, bool elastic = false)
{
InternalSyntaxTrivia trivia = null;
// use predefined trivia
switch (text)
{
case "\r":
trivia = elastic ? ElasticCarriageReturn : CarriageReturn;
break;
case "\n":
trivia = elastic ? ElasticLineFeed : LineFeed;
break;
case "\r\n":
trivia = elastic ? ElasticCarriageReturnLineFeed : CarriageReturnLineFeed;
break;
}
// note: predefined trivia might not yet be defined during initialization
if (trivia != null)
{
return(trivia);
}
trivia = this.Trivia(DefaultEndOfLineKind, text);
if (!elastic)
{
return(trivia);
}
return(trivia.WithAnnotationsGreen(new[] { Microsoft.CodeAnalysis.SyntaxAnnotation.ElasticAnnotation }));
}
protected InternalSyntaxFactory(SyntaxFacts syntaxFacts)
{
_syntaxKind = syntaxFacts.SyntaxKindType;
DefaultSeparatorKind = ToLanguageSyntaxKind(syntaxFacts.DefaultSeparatorKind);
DefaultEndOfLineKind = ToLanguageSyntaxKind(syntaxFacts.DefaultEndOfLineKind);
DefaultWhitespaceKind = ToLanguageSyntaxKind(syntaxFacts.DefaultWhitespaceKind);
EofKind = ToLanguageSyntaxKind(SyntaxKind.Eof);
CarriageReturnLineFeed = EndOfLine(CrLf);
LineFeed = EndOfLine("\n");
CarriageReturn = EndOfLine("\r");
Space = Whitespace(" ");
Tab = Whitespace("\t");
ElasticCarriageReturnLineFeed = EndOfLine(CrLf, elastic: true);
ElasticLineFeed = EndOfLine("\n", elastic: true);
ElasticCarriageReturn = EndOfLine("\r", elastic: true);
ElasticSpace = Whitespace(" ", elastic: true);
ElasticTab = Whitespace("\t", elastic: true);
ElasticZeroSpace = Whitespace(string.Empty, elastic: true);
}
