public Roslyn.Compilers.CSharp.DirectiveSyntax GetLastDirective(Func <Roslyn.Compilers.CSharp.DirectiveSyntax, bool> predicate = null)
{
foreach (SyntaxNodeOrToken syntaxNodeOrToken in this.ChildNodesAndTokens().Reverse())
{
if (syntaxNodeOrToken.HasDirectives)
{
if (syntaxNodeOrToken.IsNode)
{
Roslyn.Compilers.CSharp.DirectiveSyntax lastDirective = syntaxNodeOrToken.AsNode().GetLastDirective(predicate);
if (lastDirective != null)
{
return(lastDirective);
}
}
else
{
Roslyn.Compilers.CSharp.SyntaxToken syntaxToken = syntaxNodeOrToken.AsToken();
for (int index = syntaxToken.LeadingTrivia.Count - 1; index >= 0; --index)
{
Roslyn.Compilers.CSharp.SyntaxTrivia syntaxTrivia = syntaxToken.LeadingTrivia[index];
if (syntaxTrivia.IsDirective)
{
Roslyn.Compilers.CSharp.DirectiveSyntax directiveSyntax = (Roslyn.Compilers.CSharp.DirectiveSyntax)syntaxTrivia.GetStructure();
if (predicate == null || predicate(directiveSyntax))
{
return(directiveSyntax);
}
}
}
}
}
}
return((Roslyn.Compilers.CSharp.DirectiveSyntax)null);
}
private static void GetDirectives <TDirective>(Roslyn.Compilers.CSharp.SyntaxToken token, Func <TDirective, bool> filter, ref List <TDirective> directives) where TDirective : Roslyn.Compilers.CSharp.DirectiveSyntax
{
if (!token.HasDirectives)
{
return;
}
Roslyn.Compilers.CSharp.SyntaxNode.GetDirectives <TDirective>(token.LeadingTrivia, filter, ref directives);
Roslyn.Compilers.CSharp.SyntaxNode.GetDirectives <TDirective>(token.TrailingTrivia, filter, ref directives);
}
private bool TryGetEofAt(int position, out Roslyn.Compilers.CSharp.SyntaxToken Eof)
{
if (position == this.End)
{
Roslyn.Compilers.CSharp.CompilationUnitSyntax compilationUnitSyntax = this as Roslyn.Compilers.CSharp.CompilationUnitSyntax;
if (compilationUnitSyntax != null)
{
Eof = compilationUnitSyntax.EndOfFileToken;
return(true);
}
}
Eof = new Roslyn.Compilers.CSharp.SyntaxToken();
return(false);
}
public Roslyn.Compilers.CSharp.IdentifierNameSyntax Update(Roslyn.Compilers.CSharp.SyntaxToken identifier)
{
if (!(identifier != this.Identifier))
{
return(this);
}
Roslyn.Compilers.CSharp.IdentifierNameSyntax node = Roslyn.Compilers.CSharp.Syntax.IdentifierName(identifier);
SyntaxAnnotation[] annotations = this.GetAnnotations();
if (annotations != null && annotations.Length > 0)
{
return(Roslyn.Compilers.CSharp.SyntaxNodeExtensions.WithAnnotations <Roslyn.Compilers.CSharp.IdentifierNameSyntax>(node, annotations));
}
else
{
return(node);
}
}
public Roslyn.Compilers.CSharp.SyntaxToken FindToken(int position, Func <Roslyn.Compilers.CSharp.SyntaxTrivia, bool> findInsideTrivia)
{
Roslyn.Compilers.CSharp.SyntaxToken syntaxToken = this.FindToken(position, false);
if (findInsideTrivia != null)
{
Roslyn.Compilers.CSharp.SyntaxTrivia syntaxTrivia = new Roslyn.Compilers.CSharp.SyntaxTrivia();
TextSpan span = syntaxToken.Span;
if (position < span.Start && syntaxToken.HasLeadingTrivia)
{
syntaxTrivia = Roslyn.Compilers.CSharp.SyntaxNode.GetTriviaThatContainsPosition(syntaxToken.LeadingTrivia, position);
}
else if (position >= span.End && syntaxToken.HasTrailingTrivia)
{
syntaxTrivia = Roslyn.Compilers.CSharp.SyntaxNode.GetTriviaThatContainsPosition(syntaxToken.TrailingTrivia, position);
}
if (syntaxTrivia.HasStructure && findInsideTrivia(syntaxTrivia))
{
syntaxToken = syntaxTrivia.GetStructure().FindTokenInternal(position);
}
}
return(syntaxToken);
}
internal static Roslyn.Compilers.CSharp.SyntaxTrivia FindTriviaByOffset(Roslyn.Compilers.CSharp.SyntaxNode node, int textOffset, Func <Roslyn.Compilers.CSharp.SyntaxTrivia, bool> stepInto = null)
{
if (textOffset >= 0)
{
foreach (SyntaxNodeOrToken syntaxNodeOrToken in node.ChildNodesAndTokens())
{
int fullWidth = syntaxNodeOrToken.FullWidth;
if (textOffset < fullWidth)
{
if (syntaxNodeOrToken.IsNode)
{
return(Roslyn.Compilers.CSharp.SyntaxNode.FindTriviaByOffset(syntaxNodeOrToken.AsNode(), textOffset, stepInto));
}
if (syntaxNodeOrToken.IsToken)
{
Roslyn.Compilers.CSharp.SyntaxToken syntaxToken = syntaxNodeOrToken.AsToken();
int leadingWidth = syntaxToken.LeadingWidth;
if (textOffset < syntaxToken.LeadingWidth)
{
foreach (Roslyn.Compilers.CSharp.SyntaxTrivia syntaxTrivia in syntaxToken.LeadingTrivia)
{
if (textOffset < syntaxTrivia.FullWidth)
{
if (syntaxTrivia.HasStructure && stepInto != null && stepInto(syntaxTrivia))
{
return(Roslyn.Compilers.CSharp.SyntaxNode.FindTriviaByOffset((Roslyn.Compilers.CSharp.SyntaxNode)syntaxTrivia.GetStructure(), textOffset, stepInto));
}
else
{
return(syntaxTrivia);
}
}
else
{
textOffset -= syntaxTrivia.FullWidth;
}
}
}
else if (textOffset >= leadingWidth + syntaxToken.Width)
{
textOffset -= leadingWidth + syntaxToken.Width;
foreach (Roslyn.Compilers.CSharp.SyntaxTrivia syntaxTrivia in syntaxToken.TrailingTrivia)
{
if (textOffset < syntaxTrivia.FullWidth)
{
if (syntaxTrivia.HasStructure && stepInto != null && stepInto(syntaxTrivia))
{
return(Roslyn.Compilers.CSharp.SyntaxNode.FindTriviaByOffset((Roslyn.Compilers.CSharp.SyntaxNode)syntaxTrivia.GetStructure(), textOffset, stepInto));
}
else
{
return(syntaxTrivia);
}
}
else
{
textOffset -= syntaxTrivia.FullWidth;
}
}
}
return(new Roslyn.Compilers.CSharp.SyntaxTrivia());
}
}
textOffset -= fullWidth;
}
}
return(new Roslyn.Compilers.CSharp.SyntaxTrivia());
}
