public void Add(SyntaxTriviaList list)
{
this.Add(list, 0, list.Count);
}
private SyntaxTriviaList RewriteTrivia(
SyntaxTriviaList triviaList,
int depth,
bool isTrailing,
bool indentAfterLineBreak,
bool mustHaveSeparator,
int lineBreaksAfter)
{
ArrayBuilder <SyntaxTrivia> currentTriviaList = ArrayBuilder <SyntaxTrivia> .GetInstance(triviaList.Count);
try
{
foreach (var trivia in triviaList)
{
if (trivia.IsKind(SyntaxKind.WhitespaceTrivia) ||
trivia.IsKind(SyntaxKind.EndOfLineTrivia) ||
trivia.FullWidth == 0)
{
continue;
}
var needsSeparator =
(currentTriviaList.Count > 0 && NeedsSeparatorBetween(currentTriviaList.Last())) ||
(currentTriviaList.Count == 0 && isTrailing);
var needsLineBreak = NeedsLineBreakBefore(trivia, isTrailing) ||
(currentTriviaList.Count > 0 && NeedsLineBreakBetween(currentTriviaList.Last(), trivia, isTrailing));
if (needsLineBreak && !_afterLineBreak)
{
currentTriviaList.Add(GetEndOfLine());
_afterLineBreak = true;
_afterIndentation = false;
}
if (_afterLineBreak)
{
if (!_afterIndentation && NeedsIndentAfterLineBreak(trivia))
{
currentTriviaList.Add(this.GetIndentation(GetDeclarationDepth(trivia)));
_afterIndentation = true;
}
}
else if (needsSeparator)
{
currentTriviaList.Add(GetSpace());
_afterLineBreak = false;
_afterIndentation = false;
}
if (trivia.HasStructure)
{
var tr = this.VisitStructuredTrivia(trivia);
currentTriviaList.Add(tr);
}
else if (trivia.IsKind(SyntaxKind.DocumentationCommentExteriorTrivia))
{
// recreate exterior to remove any leading whitespace
currentTriviaList.Add(s_trimmedDocCommentExterior);
}
else
{
currentTriviaList.Add(trivia);
}
if (NeedsLineBreakAfter(trivia, isTrailing) &&
(currentTriviaList.Count == 0 || !EndsInLineBreak(currentTriviaList.Last())))
{
currentTriviaList.Add(GetEndOfLine());
_afterLineBreak = true;
_afterIndentation = false;
}
}
if (lineBreaksAfter > 0)
{
if (currentTriviaList.Count > 0 &&
EndsInLineBreak(currentTriviaList.Last()))
{
lineBreaksAfter--;
}
for (int i = 0; i < lineBreaksAfter; i++)
{
currentTriviaList.Add(GetEndOfLine());
_afterLineBreak = true;
_afterIndentation = false;
}
}
else if (indentAfterLineBreak && _afterLineBreak && !_afterIndentation)
{
currentTriviaList.Add(this.GetIndentation(depth));
_afterIndentation = true;
}
else if (mustHaveSeparator)
{
currentTriviaList.Add(GetSpace());
_afterLineBreak = false;
_afterIndentation = false;
}
if (currentTriviaList.Count == 0)
{
return(default(SyntaxTriviaList));
}
else if (currentTriviaList.Count == 1)
{
return(SyntaxFactory.TriviaList(currentTriviaList.First()));
}
else
{
return(SyntaxFactory.TriviaList(currentTriviaList));
}
}
finally
{
currentTriviaList.Free();
}
}
private static bool HasEndOfLine(SyntaxTriviaList list)
{
return(list.Any(t => IsEndOfLine(t)));
}
