private int GetColumn(TokenData tokenData, Func <TokenData, TokenData, TriviaData> triviaDataGetter)
{
// at the beginning of a file.
var previousToken = tokenData.GetPreviousTokenData();
var spaces = 0;
for (; previousToken.Token.RawKind != 0; previousToken = previousToken.GetPreviousTokenData())
{
var triviaInfo = triviaDataGetter(previousToken, tokenData);
if (triviaInfo.SecondTokenIsFirstTokenOnLine)
{
// current token is the first token on line.
// add up spaces so far and triviaInfo.Space which means indentation in this case
return(spaces + triviaInfo.Spaces);
}
// add spaces so far
spaces += triviaInfo.Spaces;
// here, we can't just add token's length since there is token that span multiple lines.
GetTokenLength(previousToken.Token, out var tokenLength, out var multipleLines);
if (multipleLines)
{
return(spaces + tokenLength);
}
spaces += tokenLength;
tokenData = previousToken;
}
// we reached beginning of the tree, add spaces at the beginning of the tree
return(spaces + triviaDataGetter(previousToken, tokenData).Spaces);
}
/// <summary>
/// Get column of the token
/// * column means text position on a line where all tabs are converted to spaces that first position on a line becomes 0
/// </summary>
private int GetColumn(TokenData tokenData, Func <TokenData, TokenData, TriviaData> triviaDataGetter)
{
// at the beginning of a file.
var previousToken = tokenData.GetPreviousTokenData();
if (previousToken.Token.RawKind == 0)
{
// use space of the trivia data since it means indentation in this case
return(triviaDataGetter(previousToken, tokenData).Spaces);
}
var spaces = 0;
for (; previousToken.Token.RawKind != 0; previousToken = previousToken.GetPreviousTokenData())
{
var triviaInfo = triviaDataGetter(previousToken, tokenData);
if (triviaInfo.SecondTokenIsFirstTokenOnLine)
{
// current token is the first token on line.
// add up spaces so far and triviaInfo.Space which means indentation in this case
return(spaces + triviaInfo.Spaces);
}
// add spaces so far
spaces += triviaInfo.Spaces;
// here, we can't just add token's length since there is token that span multiple lines.
var text = previousToken.Token.ToString();
if (text.GetNumberOfLineBreaks() > 0)
{
// add up spaces so far and text indentation
return(spaces + text.GetTextColumn(this.optionSet.GetOption(FormattingOptions.TabSize, this.treeData.Root.Language), initialColumn: 0));
}
// add spaces so far
if (text.ContainsTab())
{
// do expansive calculation
var initialColumn = this.treeData.GetOriginalColumn(this.optionSet.GetOption(FormattingOptions.TabSize, this.treeData.Root.Language), previousToken.Token);
spaces += text.ConvertTabToSpace(this.optionSet.GetOption(FormattingOptions.TabSize, this.treeData.Root.Language), initialColumn, text.Length);
}
else
{
spaces += text.Length;
}
tokenData = previousToken;
}
// we reached beginning of the tree, add spaces at the beginning of the tree
return(spaces + triviaDataGetter(previousToken, tokenData).Spaces);
}