private void ApplyIndentationDelta(
int pairIndex,
SyntaxToken currentToken,
int indentationDelta,
TriviaData triviaInfo,
Dictionary <SyntaxToken, int> previousChangesMap,
CancellationToken cancellationToken)
{
Contract.ThrowIfFalse(triviaInfo.SecondTokenIsFirstTokenOnLine);
var indentation = triviaInfo.Spaces + indentationDelta;
if (triviaInfo.Spaces == indentation)
{
// indentation didn't actually move. nothing to change
return;
}
// record the fact that this pair has been moved
Debug.Assert(!previousChangesMap.ContainsKey(currentToken));
previousChangesMap.Add(currentToken, triviaInfo.Spaces);
// okay, update indentation
_tokenStream.ApplyChange(pairIndex, triviaInfo.WithIndentation(indentation, _context, _formattingRules, cancellationToken));
}
private void ApplyIndentationToGivenPosition(
TokenData previousToken,
TokenData currentToken,
TriviaData triviaInfo,
int baseSpaceOrIndentation,
Dictionary <SyntaxToken, int> previousChangesMap,
CancellationToken cancellationToken)
{
// add or replace existing value. this could happen if a token get moved multiple times
// due to one being involved in multiple alignment operations
previousChangesMap[currentToken.Token] = triviaInfo.Spaces;
if (previousToken.IndexInStream < 0 || triviaInfo.Spaces == baseSpaceOrIndentation)
{
return;
}
// before make any change, check whether spacing is allowed
var spanBetweenTokens = TextSpan.FromBounds(previousToken.Token.Span.End, currentToken.Token.SpanStart);
if (_context.IsSpacingSuppressed(spanBetweenTokens, triviaInfo.TreatAsElastic))
{
return;
}
// okay, update indentation
_tokenStream.ApplyChange(
previousToken.IndexInStream,
triviaInfo.WithIndentation(baseSpaceOrIndentation, _context, _formattingRules, cancellationToken));
}