public sealed override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
SyntaxNode root = await context.GetSyntaxRootAsync().ConfigureAwait(false);
if (!TryFindToken(root, context.Span.Start, out SyntaxToken token))
{
return;
}
Document document = context.Document;
Diagnostic diagnostic = context.Diagnostics[0];
switch (diagnostic.Id)
{
case DiagnosticIdentifiers.AddEmptyLineBetweenBlockAndStatement:
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.AddEmptyLine,
ct => CodeFixHelpers.AppendEndOfLineAsync(document, token, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
case DiagnosticIdentifiers.AddNewLineBeforeConditionalOperatorInsteadOfAfterIt:
{
var conditionalExpression = (ConditionalExpressionSyntax)token.Parent;
string title = null;
if (token.IsKind(SyntaxKind.QuestionToken))
{
title = (SyntaxTriviaAnalysis.IsTokenFollowedWithNewLineAndNotPrecededWithNewLine(conditionalExpression.WhenTrue, conditionalExpression.ColonToken, conditionalExpression.WhenFalse))
? "Add newline before '?' and ':' instead of after it"
: "Add newline before '?' instead of after it";
}
else
{
title = "Add newline before ':' instead of after it";
}
CodeAction codeAction = CodeAction.Create(
title,
ct => AddNewLineBeforeConditionalOperatorInsteadOfAfterItAsync(document, conditionalExpression, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
case DiagnosticIdentifiers.AddNewLineAfterConditionalOperatorInsteadOfBeforeIt:
{
var conditionalExpression = (ConditionalExpressionSyntax)token.Parent;
string title = null;
if (token.IsKind(SyntaxKind.QuestionToken))
{
title = (SyntaxTriviaAnalysis.IsTokenFollowedWithNewLineAndNotPrecededWithNewLine(conditionalExpression.WhenTrue, conditionalExpression.ColonToken, conditionalExpression.WhenFalse))
? "Add newline after '?' and ':' instead of before it"
: "Add newline after '?' instead of before it";
}
else
{
title = "Add newline after ':' instead of before it";
}
CodeAction codeAction = CodeAction.Create(
title,
ct => AddNewLineAfterConditionalOperatorInsteadOfBeforeItAsync(document, conditionalExpression, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
case DiagnosticIdentifiers.AddNewLineAfterExpressionBodyArrowInsteadOfBeforeIt:
{
CodeAction codeAction = CodeAction.Create(
"Add newline after '=>' instead of before it",
ct =>
{
var expressionBody = (ArrowExpressionClauseSyntax)token.Parent;
return(CodeFixHelpers.AddNewLineAfterInsteadOfBeforeAsync(document, token.GetPreviousToken(), token, expressionBody.Expression, ct));
},
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
case DiagnosticIdentifiers.AddNewLineBeforeExpressionBodyArrowInsteadOfAfterIt:
{
CodeAction codeAction = CodeAction.Create(
"Add newline before '=>' instead of after it",
ct =>
{
var expressionBody = (ArrowExpressionClauseSyntax)token.Parent;
return(CodeFixHelpers.AddNewLineBeforeInsteadOfAfterAsync(document, token.GetPreviousToken(), token, expressionBody.Expression, ct));
},
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
case DiagnosticIdentifiers.AddNewLineAfterAttributeList:
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.AddNewLine,
ct => CodeFixHelpers.AddNewLineBeforeAsync(document, token, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
}
}
public sealed override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
SyntaxNode root = await context.GetSyntaxRootAsync().ConfigureAwait(false);
if (!TryFindToken(root, context.Span.Start, out SyntaxToken token))
{
return;
}
Document document = context.Document;
Diagnostic diagnostic = context.Diagnostics[0];
switch (diagnostic.Id)
{
case DiagnosticIdentifiers.AddEmptyLineBetweenBlockAndStatement:
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.AddEmptyLine,
ct => CodeFixHelpers.AppendEndOfLineAsync(document, token, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
case DiagnosticIdentifiers.AddNewLineBeforeConditionalOperatorInsteadOfAfterItOrViceVersa:
{
if (DiagnosticProperties.ContainsInvert(diagnostic.Properties))
{
var conditionalExpression = (ConditionalExpressionSyntax)token.Parent;
string title = null;
if (token.IsKind(SyntaxKind.QuestionToken))
{
title = (SyntaxTriviaAnalysis.IsTokenFollowedWithNewLineAndNotPrecededWithNewLine(conditionalExpression.WhenTrue, conditionalExpression.ColonToken, conditionalExpression.WhenFalse))
? "Add newline after '?' and ':' instead of before it"
: "Add newline after '?' instead of before it";
}
else
{
title = "Add newline after ':' instead of before it";
}
CodeAction codeAction = CodeAction.Create(
title,
ct => AddNewLineAfterConditionalOperatorInsteadOfBeforeItAsync(document, conditionalExpression, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
}
else
{
var conditionalExpression = (ConditionalExpressionSyntax)token.Parent;
string title = null;
if (token.IsKind(SyntaxKind.QuestionToken))
{
title = (SyntaxTriviaAnalysis.IsTokenFollowedWithNewLineAndNotPrecededWithNewLine(conditionalExpression.WhenTrue, conditionalExpression.ColonToken, conditionalExpression.WhenFalse))
? "Add newline before '?' and ':' instead of after it"
: "Add newline before '?' instead of after it";
}
else
{
title = "Add newline before ':' instead of after it";
}
CodeAction codeAction = CodeAction.Create(
title,
ct => AddNewLineBeforeConditionalOperatorInsteadOfAfterItAsync(document, conditionalExpression, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
}
break;
}
case DiagnosticIdentifiers.AddNewLineBeforeExpressionBodyArrowInsteadOfAfterItOrViceVersa:
case DiagnosticIdentifiers.AddNewLineBeforeEqualsSignInsteadOfAfterItOrViceVersa:
{
AddNewLineBeforeOrAfter();
break;
}
case DiagnosticIdentifiers.AddNewLineAfterAttributeList:
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.AddNewLine,
ct => CodeFixHelpers.AddNewLineBeforeAsync(document, token, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
case DiagnosticIdentifiers.AddNewLineBetweenClosingBraceAndWhileKeywordOrViceVersa:
{
if (DiagnosticProperties.ContainsInvert(diagnostic.Properties))
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.RemoveNewLine,
ct => CodeFixHelpers.ReplaceTriviaBetweenAsync(document, token, token.GetNextToken(), cancellationToken: ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
}
else
{
CodeAction codeAction = CodeAction.Create(
CodeFixTitles.AddNewLine,
ct => CodeFixHelpers.AddNewLineBeforeAsync(document, token, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
}
break;
}
}
void AddNewLineBeforeOrAfter()
{
if (DiagnosticProperties.ContainsInvert(diagnostic.Properties))
{
CodeAction codeAction = CodeAction.Create(
$"Add newline after '{token}' instead of before it",
ct => CodeFixHelpers.AddNewLineAfterInsteadOfBeforeAsync(document, token, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
}
else
{
CodeAction codeAction = CodeAction.Create(
$"Add newline before '{token}' instead of after it",
ct => CodeFixHelpers.AddNewLineBeforeInsteadOfAfterAsync(document, token, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
}
}
}
