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);
}
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);
}
