private static async Task<Document> GetTransformedDocumentAsync(Document document, Diagnostic diagnostic, CancellationToken cancellationToken)
{
var syntaxRoot = await document.GetSyntaxRootAsync(cancellationToken).ConfigureAwait(false);
var curlyBracketToken = syntaxRoot.FindToken(diagnostic.Location.SourceSpan.Start);
var curlyBracketLine = curlyBracketToken.GetLineSpan().StartLinePosition.Line;
var curlyBracketReplacementToken = curlyBracketToken;
var indentationOptions = IndentationOptions.FromDocument(document);
var indentationSteps = DetermineIndentationSteps(indentationOptions, curlyBracketToken);
var previousToken = curlyBracketToken.GetPreviousToken();
var nextToken = curlyBracketToken.GetNextToken();
var rewriter = new Rewriter();
if (IsAccessorWithSingleLineBlock(previousToken, curlyBracketToken))
{
var newTrailingTrivia = previousToken.TrailingTrivia
.WithoutTrailingWhitespace()
.Add(SyntaxFactory.Space);
rewriter.AddReplacement(previousToken, previousToken.WithTrailingTrivia(newTrailingTrivia));
curlyBracketReplacementToken = curlyBracketReplacementToken.WithLeadingTrivia(curlyBracketToken.LeadingTrivia.WithoutLeadingWhitespace());
}
else
{
// Check if we need to apply a fix before the curly bracket
if (previousToken.GetLineSpan().StartLinePosition.Line == curlyBracketLine)
{
var sharedTrivia = curlyBracketReplacementToken.LeadingTrivia.WithoutTrailingWhitespace();
var previousTokenNewTrailingTrivia = previousToken.TrailingTrivia
.WithoutTrailingWhitespace()
.AddRange(sharedTrivia)
.Add(SyntaxFactory.CarriageReturnLineFeed);
rewriter.AddReplacement(previousToken, previousToken.WithTrailingTrivia(previousTokenNewTrailingTrivia));
curlyBracketReplacementToken = curlyBracketReplacementToken.WithLeadingTrivia(IndentationHelper.GenerateWhitespaceTrivia(indentationOptions, indentationSteps));
}
// Check if we need to apply a fix after the curly bracket
// if a closing curly bracket is followed by a semi-colon or closing paren, no fix is needed.
if ((nextToken.GetLineSpan().StartLinePosition.Line == curlyBracketLine) &&
(!curlyBracketToken.IsKind(SyntaxKind.CloseBraceToken) || !IsValidFollowingToken(nextToken)))
{
var sharedTrivia = nextToken.LeadingTrivia.WithoutTrailingWhitespace();
var newTrailingTrivia = curlyBracketReplacementToken.TrailingTrivia
.WithoutTrailingWhitespace()
.AddRange(sharedTrivia)
.Add(SyntaxFactory.CarriageReturnLineFeed);
int newIndentationSteps;
if (curlyBracketToken.IsKind(SyntaxKind.OpenBraceToken))
{
newIndentationSteps = indentationSteps + 1;
}
else if (nextToken.IsKind(SyntaxKind.CloseBraceToken))
{
newIndentationSteps = Math.Max(0, indentationSteps - 1);
}
else
{
newIndentationSteps = indentationSteps;
}
rewriter.AddReplacement(nextToken, nextToken.WithLeadingTrivia(IndentationHelper.GenerateWhitespaceTrivia(indentationOptions, newIndentationSteps)));
curlyBracketReplacementToken = curlyBracketReplacementToken.WithTrailingTrivia(newTrailingTrivia);
}
}
rewriter.AddReplacement(curlyBracketToken, curlyBracketReplacementToken);
var newSyntaxRoot = rewriter.Visit(syntaxRoot).WithoutFormatting();
return document.WithSyntaxRoot(newSyntaxRoot);
}
private static async Task <Document> GetTransformedDocumentAsync(Document document, Diagnostic diagnostic, CancellationToken cancellationToken)
{
var syntaxRoot = await document.GetSyntaxRootAsync(cancellationToken).ConfigureAwait(false);
var curlyBracketToken = syntaxRoot.FindToken(diagnostic.Location.SourceSpan.Start);
var curlyBracketLine = curlyBracketToken.GetLocation().GetLineSpan().StartLinePosition.Line;
var curlyBracketReplacementToken = curlyBracketToken;
var indentationOptions = IndentationOptions.FromDocument(document);
var indentationSteps = DetermineIndentationSteps(indentationOptions, curlyBracketToken);
var previousToken = curlyBracketToken.GetPreviousToken();
var nextToken = curlyBracketToken.GetNextToken();
var rewriter = new Rewriter();
if (IsAccessorWithSingleLineBlock(previousToken, curlyBracketToken))
{
var newTrailingTrivia = previousToken.TrailingTrivia
.WithoutTrailingWhitespace()
.Add(SyntaxFactory.Space);
rewriter.AddReplacement(previousToken, previousToken.WithTrailingTrivia(newTrailingTrivia));
curlyBracketReplacementToken = curlyBracketReplacementToken.WithLeadingTrivia(curlyBracketToken.LeadingTrivia.WithoutLeadingWhitespace());
}
else
{
// Check if we need to apply a fix before the curly bracket
if (previousToken.GetLocation().GetLineSpan().StartLinePosition.Line == curlyBracketLine)
{
var sharedTrivia = curlyBracketReplacementToken.LeadingTrivia.WithoutTrailingWhitespace();
var previousTokenNewTrailingTrivia = previousToken.TrailingTrivia
.WithoutTrailingWhitespace()
.AddRange(sharedTrivia)
.Add(SyntaxFactory.CarriageReturnLineFeed);
rewriter.AddReplacement(previousToken, previousToken.WithTrailingTrivia(previousTokenNewTrailingTrivia));
curlyBracketReplacementToken = curlyBracketReplacementToken.WithLeadingTrivia(IndentationHelper.GenerateWhitespaceTrivia(indentationOptions, indentationSteps));
}
// Check if we need to apply a fix after the curly bracket
// if a closing curly bracket is followed by a semi-colon or closing paren, no fix is needed.
if ((nextToken.GetLocation().GetLineSpan().StartLinePosition.Line == curlyBracketLine) &&
(!curlyBracketToken.IsKind(SyntaxKind.CloseBraceToken) || !IsValidFollowingToken(nextToken)))
{
var sharedTrivia = nextToken.LeadingTrivia.WithoutTrailingWhitespace();
var newTrailingTrivia = curlyBracketReplacementToken.TrailingTrivia
.WithoutTrailingWhitespace()
.AddRange(sharedTrivia)
.Add(SyntaxFactory.CarriageReturnLineFeed);
int newIndentationSteps;
if (curlyBracketToken.IsKind(SyntaxKind.OpenBraceToken))
{
newIndentationSteps = indentationSteps + 1;
}
else if (nextToken.IsKind(SyntaxKind.CloseBraceToken))
{
newIndentationSteps = Math.Max(0, indentationSteps - 1);
}
else
{
newIndentationSteps = indentationSteps;
}
rewriter.AddReplacement(nextToken, nextToken.WithLeadingTrivia(IndentationHelper.GenerateWhitespaceTrivia(indentationOptions, newIndentationSteps)));
curlyBracketReplacementToken = curlyBracketReplacementToken.WithTrailingTrivia(newTrailingTrivia);
}
}
rewriter.AddReplacement(curlyBracketToken, curlyBracketReplacementToken);
var newSyntaxRoot = rewriter.Visit(syntaxRoot).WithoutFormatting();
return(document.WithSyntaxRoot(newSyntaxRoot));
}