public static string GetCommentText(this SyntaxTrivia trivia)
{
var commentText = trivia.ToString();
if (trivia.CSharpKind() == SyntaxKind.SingleLineCommentTrivia)
{
if (commentText.StartsWith("//"))
{
commentText = commentText.Substring(2);
}
return(commentText.TrimStart());
}
else if (trivia.CSharpKind() == SyntaxKind.MultiLineCommentTrivia)
{
var textBuilder = new StringBuilder();
if (commentText.EndsWith("*/"))
{
commentText = commentText.Substring(0, commentText.Length - 2);
}
if (commentText.StartsWith("/*"))
{
commentText = commentText.Substring(2);
}
commentText = commentText.Trim();
var newLine = Environment.NewLine;
var lines = commentText.Split(new[] { newLine }, StringSplitOptions.None);
foreach (var line in lines)
{
var trimmedLine = line.Trim();
// Note: we trim leading '*' characters in multi-line comments.
// If the '*' was intentional, sorry, it's gone.
if (trimmedLine.StartsWith("*"))
{
trimmedLine = trimmedLine.TrimStart('*');
trimmedLine = trimmedLine.TrimStart();
}
textBuilder.AppendLine(trimmedLine);
}
// remove last line break
textBuilder.Remove(textBuilder.Length - newLine.Length, newLine.Length);
return(textBuilder.ToString());
}
else
{
throw new InvalidOperationException();
}
}
private bool OnSkippedTokensOrText(SyntaxTrivia trivia)
{
if (trivia.CSharpKind() != SyntaxKind.SkippedTokensTrivia &&
trivia.CSharpKind() != SyntaxKind.PreprocessingMessageTrivia)
{
return(false);
}
return(Contract.FailWithReturn <bool>("This can't happen"));
}
public override IDom CreateFrom(SyntaxTrivia trivia, IDom parent, OutputContext context)
{
if (trivia.CSharpKind() == SyntaxKind.RegionDirectiveTrivia)
{
return(CreateStartRegion(trivia, parent, context));
}
else if (trivia.CSharpKind() == SyntaxKind.EndRegionDirectiveTrivia)
{
return(CreateEndRegion(trivia, parent, context));
}
return(CreateComment(trivia, parent, context));
}
private static bool NeedsSeparatorBetween(SyntaxTrivia trivia)
{
switch (trivia.CSharpKind())
{
case SyntaxKind.None:
case SyntaxKind.WhitespaceTrivia:
case SyntaxKind.DocumentationCommentExteriorTrivia:
return(false);
default:
return(!SyntaxFacts.IsPreprocessorDirective(trivia.CSharpKind()));
}
}
private bool OnTouchedNoisyCharacter(SyntaxTrivia trivia)
{
if (trivia.IsElastic() ||
trivia.CSharpKind() == SyntaxKind.WhitespaceTrivia ||
trivia.CSharpKind() == SyntaxKind.EndOfLineTrivia)
{
return(false);
}
this.touchedNoisyCharacterOnCurrentLine = true;
this.hasTrailingSpace = false;
return(false);
}
private static bool EndsInLineBreak(SyntaxTrivia trivia)
{
if (trivia.CSharpKind() == SyntaxKind.EndOfLineTrivia)
{
return(true);
}
if (trivia.CSharpKind() == SyntaxKind.PreprocessingMessageTrivia || trivia.CSharpKind() == SyntaxKind.DisabledTextTrivia)
{
var text = trivia.ToFullString();
return(text.Length > 0 && SyntaxFacts.IsNewLine(text.Last()));
}
return(false);
}
/// <summary>
/// Finds a token according to the following rules:
/// 1) If position matches the End of the node/s FullSpan and the node is CompilationUnit,
/// then EoF is returned.
///
/// 2) If node.FullSpan.Contains(position) then the token that contains given position is
/// returned.
///
/// 3) Otherwise an ArgumentOutOfRangeException is thrown
/// </summary>
internal SyntaxToken FindTokenIncludingCrefAndNameAttributes(int position)
{
SyntaxToken nonTriviaToken = this.FindToken(position, findInsideTrivia: false);
SyntaxTrivia trivia = GetTriviaFromSyntaxToken(position, nonTriviaToken);
if (!SyntaxFacts.IsDocumentationCommentTrivia(trivia.CSharpKind()))
{
return(nonTriviaToken);
}
Debug.Assert(trivia.HasStructure);
SyntaxToken triviaToken = ((CSharpSyntaxNode)trivia.GetStructure()).FindTokenInternal(position);
// CONSIDER: We might want to use the trivia token anywhere within a doc comment.
// Otherwise, we'll fall back on the enclosing scope outside of name and cref
// attribute values.
CSharpSyntaxNode curr = (CSharpSyntaxNode)triviaToken.Parent;
while (curr != null)
{
// Don't return a trivia token unless we're in the scope of a cref or name attribute.
if (curr.Kind == SyntaxKind.XmlCrefAttribute || curr.Kind == SyntaxKind.XmlNameAttribute)
{
return(LookupPosition.IsInXmlAttributeValue(position, (XmlAttributeSyntax)curr)
? triviaToken
: nonTriviaToken);
}
curr = curr.Parent;
}
return(nonTriviaToken);
}
private bool OnWhitespace(SyntaxTrivia trivia)
{
if (trivia.CSharpKind() != SyntaxKind.WhitespaceTrivia)
{
return(false);
}
// there was noisy char after end of line trivia
if (!this.UseIndentation || this.touchedNoisyCharacterOnCurrentLine)
{
this.hasTrailingSpace = true;
return(false);
}
// right after end of line trivia. calculate indentation for current line
Debug.Assert(trivia.ToString() == trivia.ToFullString());
var text = trivia.ToString();
// if text contains tab, we will give up perf optimization and use more expensive one to see whether we need to replace this trivia
if (text.IndexOf('\t') >= 0)
{
return(true);
}
this.indentation += text.ConvertTabToSpace(this.optionSet.GetOption(FormattingOptions.TabSize, LanguageNames.CSharp), this.indentation, text.Length);
return(false);
}
public override void VisitTrivia(SyntaxTrivia trivia)
{
if (trivia.HasStructure)
{
Visit(trivia.GetStructure());
}
switch (trivia.CSharpKind())
{
case SyntaxKind.MultiLineCommentTrivia:
case SyntaxKind.SingleLineCommentTrivia:
case SyntaxKind.SingleLineDocumentationCommentTrivia:
case SyntaxKind.MultiLineDocumentationCommentTrivia:
case SyntaxKind.DocumentationCommentExteriorTrivia:
Mark(trivia, "comment"); break;
case SyntaxKind.EndOfLineTrivia:
case SyntaxKind.WhitespaceTrivia:
Mark(trivia, "whitespace"); break;
case SyntaxKind.RegionDirectiveTrivia:
Mark(trivia, "begin-region"); break;
case SyntaxKind.EndRegionDirectiveTrivia:
Mark(trivia, "end-region"); break;
case SyntaxKind.DisabledTextTrivia:
Mark(trivia, "disabled-text"); break;
}
}
public override SyntaxTrivia VisitTrivia(SyntaxTrivia trivia)
{
if (trivia.CSharpKind() == SyntaxKind.DocumentationCommentExteriorTrivia)
{
if (IsBeginningOrEndOfDocumentComment(trivia))
{
return(base.VisitTrivia(trivia));
}
else
{
var triviaText = trivia.ToFullString();
var newTriviaText = triviaText.AdjustIndentForXmlDocExteriorTrivia(
forceIndentation,
indentation,
indentationDelta,
this.optionSet.GetOption(FormattingOptions.UseTabs, LanguageNames.CSharp),
this.optionSet.GetOption(FormattingOptions.TabSize, LanguageNames.CSharp));
if (triviaText == newTriviaText)
{
return(base.VisitTrivia(trivia));
}
var parsedNewTrivia = SyntaxFactory.DocumentationCommentExterior(newTriviaText);
return(parsedNewTrivia);
}
}
return(base.VisitTrivia(trivia));
}
private bool RealWhitespace(SyntaxTrivia trivia)
{
if (trivia.CSharpKind() != SyntaxKind.WhitespaceTrivia)
{
return(false);
}
return(!string.IsNullOrEmpty(trivia.ToFullString()));
}
public override void VisitTrivia(SyntaxTrivia trivia)
{
if (trivia.CSharpKind() != SyntaxKind.None)
{
this.Trivia.Add(trivia);
}
base.VisitTrivia(trivia);
}
private static int GetDeclarationDepth(SyntaxTrivia trivia)
{
if (SyntaxFacts.IsPreprocessorDirective(trivia.CSharpKind()))
{
return(0);
}
return(GetDeclarationDepth((SyntaxToken)trivia.Token));
}
private static bool EndsInLineBreak(SyntaxTrivia trivia)
{
if (trivia.CSharpKind() == SyntaxKind.EndOfLineTrivia)
{
return(true);
}
return(false);
}
private Whitespace2 GetWhitespace(SyntaxTrivia trivia)
{
var str = "";
if (trivia.CSharpKind() == SyntaxKind.WhitespaceTrivia)
{
str = trivia.ToFullString();
}
return(new Whitespace2(LanguagePart.Parent, LanguageElement.Detail, str, "", ""));
}
private void ClassifyPreprocessorTrivia(SyntaxTrivia trivia, bool allowComments)
{
if (allowComments && trivia.CSharpKind() == SyntaxKind.SingleLineCommentTrivia)
{
AddClassification(trivia, ClassificationTypeNames.Comment);
}
else
{
AddClassification(trivia, ClassificationTypeNames.PreprocessorText);
}
}
private ApiCall QuoteTrivia(SyntaxTrivia syntaxTrivia)
{
string factoryMethodName = "SyntaxFactory.Trivia";
string text = syntaxTrivia.ToString();
if (syntaxTrivia.FullSpan.Length == 0 || (syntaxTrivia.IsKind(SyntaxKind.WhitespaceTrivia) && UseDefaultFormatting))
{
return(null);
}
FieldInfo field = null;
if (triviaFactoryFields.TryGetValue(syntaxTrivia.ToString( ), out field) &&
((SyntaxTrivia)field.GetValue(null)).CSharpKind( ) == syntaxTrivia.CSharpKind( ))
{
return(UseDefaultFormatting ? null : new ApiCall(null, "SyntaxFactory." + field.Name));
}
if (!string.IsNullOrEmpty(text) && string.IsNullOrWhiteSpace(text) && syntaxTrivia.IsKind(SyntaxKind.WhitespaceTrivia))
{
if (UseDefaultFormatting)
{
return(null);
}
factoryMethodName = "SyntaxFactory.Whitespace";
}
if (syntaxTrivia.IsTriviaAny(SyntaxKind.SingleLineCommentTrivia,
SyntaxKind.MultiLineCommentTrivia))
{
factoryMethodName = "SyntaxFactory.Comment";
}
if (syntaxTrivia.IsKind(SyntaxKind.PreprocessingMessageTrivia))
{
factoryMethodName = "SyntaxFactory.PreprocessingMessage";
}
if (syntaxTrivia.IsKind(SyntaxKind.DisabledTextTrivia))
{
factoryMethodName = "SyntaxFactory.DisabledText";
}
if (syntaxTrivia.IsKind(SyntaxKind.DocumentationCommentExteriorTrivia))
{
factoryMethodName = "SyntaxFactory.DocumentationCommentExterior";
}
object argument = "@\"" + Escape(syntaxTrivia.ToString()) + "\"";
if (syntaxTrivia.HasStructure)
{
argument = QuoteNode(syntaxTrivia.GetStructure( ), "Structure");
}
return(new ApiCall(null, factoryMethodName, ArgList.Create(argument)));
}
private static bool NeedsLineBreakBefore(SyntaxTrivia trivia)
{
switch (trivia.CSharpKind())
{
case SyntaxKind.DocumentationCommentExteriorTrivia:
return(true);
default:
return(false);
}
}
private IDom CreateComment(SyntaxTrivia trivia, IDom parent, OutputContext context)
{
var isMultiline = (trivia.CSharpKind() == SyntaxKind.MultiLineCommentTrivia);
var precedingTrivia = trivia.Token.LeadingTrivia.PreviousSiblings(trivia);
var commentText = trivia.ToString();
var tuple = context.Corporation.CreateFromWorker.ExtractComment(trivia.ToString());
var commentString = tuple.Item2;
var newComment = new RDomComment(parent, trivia, tuple.Item2, isMultiline);
triviaManager.StoreWhitespaceForComment(newComment, precedingTrivia, tuple.Item1, tuple.Item3);
return(newComment);
}
private bool OnRegion(SyntaxTrivia trivia, int currentIndex)
{
if (trivia.CSharpKind() != SyntaxKind.RegionDirectiveTrivia &&
trivia.CSharpKind() != SyntaxKind.EndRegionDirectiveTrivia)
{
return(false);
}
if (!this.UseIndentation)
{
return(true);
}
if (indentation != this.context.GetBaseIndentation(trivia.SpanStart))
{
return(true);
}
ResetStateAfterNewLine(currentIndex);
return(false);
}
private void ClassifyTrivia(SyntaxTrivia trivia)
{
if (trivia.CSharpKind() == SyntaxKind.SingleLineCommentTrivia || trivia.CSharpKind() == SyntaxKind.MultiLineCommentTrivia)
{
AddClassification(trivia, ClassificationTypeNames.Comment);
}
else if (trivia.CSharpKind() == SyntaxKind.DisabledTextTrivia)
{
AddClassification(trivia, ClassificationTypeNames.ExcludedCode);
}
else if (trivia.CSharpKind() == SyntaxKind.SkippedTokensTrivia)
{
ClassifySkippedTokens((SkippedTokensTriviaSyntax)trivia.GetStructure());
}
else if (trivia.IsDocComment())
{
ClassifyDocumentationComment((DocumentationCommentTriviaSyntax)trivia.GetStructure());
}
else if (trivia.CSharpKind() == SyntaxKind.DocumentationCommentExteriorTrivia)
{
AddClassification(trivia, ClassificationTypeNames.XmlDocCommentDelimiter);
}
else if (SyntaxFacts.IsPreprocessorDirective(trivia.CSharpKind()))
{
ClassifyPreprocessorDirective((DirectiveTriviaSyntax)trivia.GetStructure());
}
}
public static bool IsCompleteMultiLineComment(this SyntaxTrivia trivia)
{
if (trivia.CSharpKind() != SyntaxKind.MultiLineCommentTrivia)
{
return(false);
}
var text = trivia.ToFullString();
return(text.Length >= 4 &&
text[text.Length - 1] == '/' &&
text[text.Length - 2] == '*');
}
private static bool NeedsSeparatorBetween(SyntaxTrivia trivia)
{
switch (trivia.CSharpKind())
{
case SyntaxKind.None:
case SyntaxKind.WhitespaceTrivia:
case SyntaxKind.DocumentationCommentExteriorTrivia:
return(false);
default:
return(true);
}
}
public override SyntaxTrivia VisitTrivia(SyntaxTrivia trivia)
{
if (trivia.CSharpKind() == SyntaxKind.None)
{
return(trivia);
}
if (trivia.HasStructure)
{
return(base.VisitTrivia(trivia));
}
return(base.VisitTrivia(trivia).WithAdditionalAnnotations(annotation));
}
private static bool NeedsLineBreakAfter(SyntaxTrivia trivia, bool isTrailingTrivia)
{
switch (trivia.CSharpKind())
{
case SyntaxKind.SingleLineCommentTrivia:
return(true);
case SyntaxKind.MultiLineCommentTrivia:
return(!isTrailingTrivia);
default:
return(false);
}
}
private bool IsComment(SyntaxTrivia trivia)
{
return(trivia.CSharpKind() == SyntaxKind.SingleLineCommentTrivia ||
trivia.CSharpKind() == SyntaxKind.SingleLineDocumentationCommentTrivia ||
trivia.CSharpKind() == SyntaxKind.DocumentationCommentExteriorTrivia ||
trivia.CSharpKind() == SyntaxKind.MultiLineCommentTrivia ||
trivia.CSharpKind() == SyntaxKind.MultiLineDocumentationCommentTrivia ||
trivia.CSharpKind() == SyntaxKind.XmlComment);
}
public override SyntaxTrivia VisitTrivia(SyntaxTrivia trivia)
{
if (trivia.CSharpKind() == SyntaxKind.None)
{
return(trivia);
}
// annotation will be set by actual structure trivia
if (trivia.HasStructure)
{
return(base.VisitTrivia(trivia));
}
return(this.triviaMap[trivia].CopyAnnotationsTo(base.VisitTrivia(trivia)));
}
public static string GetKind(this SyntaxTrivia trivia)
{
var kind = string.Empty;
if (trivia.Language == LanguageNames.CSharp)
{
kind = trivia.CSharpKind().ToString();
}
else
{
kind = trivia.VBKind().ToString();
}
return(kind);
}
public static string GetKind(this SyntaxTrivia trivia)
{
var kind = string.Empty;
if (trivia.Language == LanguageNames.CSharp)
{
kind = trivia.CSharpKind().ToString();
}
//else
//{
// kind = trivia.VisualBasicKind().ToString();
//}
return(kind);
}
private static bool NeedsIndentAfterLineBreak(SyntaxTrivia trivia)
{
switch (trivia.CSharpKind())
{
case SyntaxKind.SingleLineCommentTrivia:
case SyntaxKind.MultiLineCommentTrivia:
case SyntaxKind.DocumentationCommentExteriorTrivia:
case SyntaxKind.SingleLineDocumentationCommentTrivia:
case SyntaxKind.MultiLineDocumentationCommentTrivia:
return(true);
default:
return(false);
}
}
private void ClassifyPreprocessorTrivia(SyntaxTrivia trivia, bool allowComments)
{
if (allowComments && trivia.CSharpKind() == SyntaxKind.SingleLineCommentTrivia)
{
AddClassification(trivia, ClassificationTypeNames.Comment);
}
else
{
AddClassification(trivia, ClassificationTypeNames.PreprocessorText);
}
}
private static void AnalyzeWhitespacesInTrivia(SyntaxTrivia trivia, ref AnalysisResult result)
{
// trivia already has text. getting text should be noop
Debug.Assert(trivia.CSharpKind() == SyntaxKind.WhitespaceTrivia);
Debug.Assert(trivia.Width() == trivia.FullWidth());
int space = 0;
int tab = 0;
int unknownWhitespace = 0;
var text = trivia.ToString();
for (int i = 0; i < trivia.Width(); i++)
{
if (text[i] == ' ')
{
space++;
}
else if (text[i] == '\t')
{
if (result.Space > 0)
{
result.HasTabAfterSpace = true;
}
tab++;
}
else
{
unknownWhitespace++;
}
}
// set result
result.Space += space;
result.Tab += tab;
result.HasUnknownWhitespace |= unknownWhitespace > 0;
result.TreatAsElastic |= trivia.IsElastic();
}
public override SyntaxTrivia VisitTrivia(SyntaxTrivia trivia)
{
var comment = trivia.ToString();
if (trivia.CSharpKind() == SyntaxKind.MultiLineCommentTrivia)
{
if (!comment.StartsWith("/*uncomment"))
{
bool shouldCreateTextBlock = trivia.GetParents().Count(p => IsNestingParent(p, trivia)) <= 1;
if (shouldCreateTextBlock)
Blocks.Add(ExtractMarkDownFromComment(trivia));
}
}
else if (trivia.CSharpKind() == SyntaxKind.SingleLineCommentTrivia)
{
if (comment.StartsWith("//#"))
{
var parts = comment.Split(new[] { ' ' }, 2);
if (parts[0] == "//#video") EmbedVideo(parts[1]);
if (parts[0] == "//#include") EmbedCode(parts[1]);
if (parts[0] == "//#para") EmbedPara(parts[1]);
if (parts[0] == "//#gallery") EmbedGallery(parts[1]);
}
}
return base.VisitTrivia(trivia);
}
public override SyntaxTrivia VisitTrivia(SyntaxTrivia trivia)
{
SyntaxTrivia updatedTrivia = base.VisitTrivia(trivia);
if (trivia.CSharpKind() == SyntaxKind.RegionDirectiveTrivia ||
trivia.CSharpKind() == SyntaxKind.EndRegionDirectiveTrivia)
{
// Remove the trivia entirely by returning default(SyntaxTrivia).
updatedTrivia = default(SyntaxTrivia);
}
return updatedTrivia;
}
public override void VisitTrivia(SyntaxTrivia trivia)
{
bool isDocComment = SyntaxFacts.IsDocumentationCommentTrivia(trivia.CSharpKind());
if (isDocComment ||
trivia.CSharpKind() == SyntaxKind.SingleLineCommentTrivia ||
trivia.CSharpKind() == SyntaxKind.MultiLineCommentTrivia)
{
Results.AppendLine();
Results.Append(trivia.ToFullString().Trim());
Results.Append(" (Parent Token: ");
Results.Append(trivia.Token.CSharpKind());
Results.Append(")");
if (isDocComment)
{
// Trivia for xml documentation comments have addditional 'structure'
// available under a child DocumentationCommentSyntax.
Assert.IsTrue(trivia.HasStructure);
var documentationComment =
(DocumentationCommentTriviaSyntax)trivia.GetStructure();
Assert.IsTrue(documentationComment.ParentTrivia == trivia);
Results.Append(" (Structured)");
}
}
base.VisitTrivia(trivia);
}
private void ClassifyTrivia(SyntaxTrivia trivia)
{
if (trivia.CSharpKind() == SyntaxKind.SingleLineCommentTrivia || trivia.CSharpKind() == SyntaxKind.MultiLineCommentTrivia)
{
AddClassification(trivia, ClassificationTypeNames.Comment);
}
else if (trivia.CSharpKind() == SyntaxKind.DisabledTextTrivia)
{
AddClassification(trivia, ClassificationTypeNames.ExcludedCode);
}
else if (trivia.CSharpKind() == SyntaxKind.SkippedTokensTrivia)
{
ClassifySkippedTokens((SkippedTokensTriviaSyntax)trivia.GetStructure());
}
else if (trivia.IsDocComment())
{
ClassifyDocumentationComment((DocumentationCommentTriviaSyntax)trivia.GetStructure());
}
else if (trivia.CSharpKind() == SyntaxKind.DocumentationCommentExteriorTrivia)
{
AddClassification(trivia, ClassificationTypeNames.XmlDocCommentDelimiter);
}
else if (SyntaxFacts.IsPreprocessorDirective(trivia.CSharpKind()))
{
ClassifyPreprocessorDirective((DirectiveTriviaSyntax)trivia.GetStructure());
}
}
public override void VisitTrivia(SyntaxTrivia trivia)
{
cancellationToken.ThrowIfCancellationRequested();
if (IsSyntacticallyFilteredOut(trivia.FullSpan))
{
return;
}
if (!IsValidLocation && SyntaxFacts.IsDocumentationCommentTrivia(trivia.CSharpKind()))
{
int start = trivia.Position; // FullSpan start to include /** or ///
const int length = 1; //Match dev11: span is just one character
diagnostics.Add(ErrorCode.WRN_UnprocessedXMLComment, new SourceLocation(trivia.SyntaxTree, new TextSpan(start, length)));
}
base.VisitTrivia(trivia);
}
private bool IsWhitespace(SyntaxTrivia trivia)
{
return trivia.CSharpKind() == SyntaxKind.WhitespaceTrivia
|| trivia.CSharpKind() == SyntaxKind.EndOfLineTrivia;
}
private bool OnWhitespace(SyntaxTrivia trivia)
{
if (trivia.CSharpKind() != SyntaxKind.WhitespaceTrivia)
{
return false;
}
// there was noisy char after end of line trivia
if (!this.UseIndentation || this.touchedNoisyCharacterOnCurrentLine)
{
this.hasTrailingSpace = true;
return false;
}
// right after end of line trivia. calculate indentation for current line
Debug.Assert(trivia.ToString() == trivia.ToFullString());
var text = trivia.ToString();
// if text contains tab, we will give up perf optimization and use more expensive one to see whether we need to replace this trivia
if (text.IndexOf('\t') >= 0)
{
return true;
}
this.indentation += text.ConvertTabToSpace(this.optionSet.GetOption(FormattingOptions.TabSize, LanguageNames.CSharp), this.indentation, text.Length);
return false;
}
public override void VisitTrivia(SyntaxTrivia trivia)
{
if (trivia.HasStructure)
Visit(trivia.GetStructure());
switch (trivia.CSharpKind())
{
case SyntaxKind.MultiLineCommentTrivia:
case SyntaxKind.SingleLineCommentTrivia:
case SyntaxKind.SingleLineDocumentationCommentTrivia:
case SyntaxKind.MultiLineDocumentationCommentTrivia:
case SyntaxKind.DocumentationCommentExteriorTrivia:
Mark(trivia, "comment"); break;
case SyntaxKind.EndOfLineTrivia:
case SyntaxKind.WhitespaceTrivia:
Mark(trivia, "whitespace"); break;
case SyntaxKind.RegionDirectiveTrivia:
Mark(trivia, "begin-region"); break;
case SyntaxKind.EndRegionDirectiveTrivia:
Mark(trivia, "end-region"); break;
case SyntaxKind.DisabledTextTrivia:
Mark(trivia, "disabled-text"); break;
}
}
private bool OnTouchedNoisyCharacter(SyntaxTrivia trivia)
{
if (trivia.IsElastic() ||
trivia.CSharpKind() == SyntaxKind.WhitespaceTrivia ||
trivia.CSharpKind() == SyntaxKind.EndOfLineTrivia)
{
return false;
}
this.touchedNoisyCharacterOnCurrentLine = true;
this.hasTrailingSpace = false;
return false;
}
private bool OnPreprocessor(SyntaxTrivia trivia, int currentIndex)
{
if (!SyntaxFacts.IsPreprocessorDirective(trivia.CSharpKind()))
{
return false;
}
if (!this.UseIndentation)
{
return true;
}
// preprocessor must be at from column 0
if (this.indentation != 0)
{
return true;
}
ResetStateAfterNewLine(currentIndex);
return false;
}
private bool OnRegion(SyntaxTrivia trivia, int currentIndex)
{
if (trivia.CSharpKind() != SyntaxKind.RegionDirectiveTrivia &&
trivia.CSharpKind() != SyntaxKind.EndRegionDirectiveTrivia)
{
return false;
}
if (!this.UseIndentation)
{
return true;
}
if (indentation != this.context.GetBaseIndentation(trivia.SpanStart))
{
return true;
}
ResetStateAfterNewLine(currentIndex);
return false;
}
private bool OnSkippedTokensOrText(SyntaxTrivia trivia)
{
if (trivia.CSharpKind() != SyntaxKind.SkippedTokensTrivia &&
trivia.CSharpKind() != SyntaxKind.PreprocessingMessageTrivia)
{
return false;
}
return Contract.FailWithReturn<bool>("This can't happen");
}
private bool OnEndOfLine(SyntaxTrivia trivia, int currentIndex)
{
if (trivia.CSharpKind() != SyntaxKind.EndOfLineTrivia)
{
return false;
}
// end of line trivia right after whitespace trivia
if (this.hasTrailingSpace)
{
// has trailing whitespace
return true;
}
// empty line with spaces. remove it.
if (this.indentation > 0 && !this.touchedNoisyCharacterOnCurrentLine)
{
return true;
}
ResetStateAfterNewLine(currentIndex);
return false;
}
