private async Task <Document> AddNewLineAfterUsingBlock(Document document, UsingDirectiveSyntax usingDirective, CancellationToken cancellationToken)
{
var newUsingDirective = usingDirective
.WithTrailingTrivia(
usingDirective.GetTrailingTrivia().Add(SyntaxFactory.EndOfLine(Environment.NewLine)));
var root = await document.GetSyntaxRootAsync(cancellationToken).ConfigureAwait(false);
root = root.ReplaceNode(usingDirective, newUsingDirective);
return(document.WithSyntaxRoot(root));
}
private static void Analyze(
SyntaxNodeAnalysisContext context,
UsingDirectiveSyntax usingDirective,
SyntaxToken nextToken)
{
SyntaxTriviaList trailingTrivia = usingDirective.GetTrailingTrivia();
if (!SyntaxTriviaAnalysis.IsOptionalWhitespaceThenOptionalSingleLineCommentThenEndOfLineTrivia(triviaList: trailingTrivia))
{
return;
}
SyntaxTriviaList.Enumerator en = nextToken.LeadingTrivia.GetEnumerator();
if (en.MoveNext())
{
if (en.Current.IsWhitespaceTrivia() &&
!en.MoveNext())
{
ReportDiagnostic(trailingTrivia.Last().SpanStart);
}
else
{
switch (en.Current.Kind())
{
case SyntaxKind.SingleLineCommentTrivia:
case SyntaxKind.SingleLineDocumentationCommentTrivia:
case SyntaxKind.MultiLineDocumentationCommentTrivia:
{
ReportDiagnostic(trailingTrivia.Last().SpanStart);
break;
}
}
}
}
else
{
ReportDiagnostic(trailingTrivia.Last().SpanStart);
}
void ReportDiagnostic(int position)
{
DiagnosticHelpers.ReportDiagnostic(
context,
DiagnosticRules.AddBlankLineAfterUsingDirectiveList,
Location.Create(usingDirective.SyntaxTree, new TextSpan(position, 0)));
}
}
internal static SyntaxRemoveOptions GetRemoveOptions(UsingDirectiveSyntax usingDirective)
{
SyntaxRemoveOptions removeOptions = SyntaxRemoveOptions.KeepExteriorTrivia | SyntaxRemoveOptions.KeepUnbalancedDirectives;
if (!usingDirective.HasLeadingTrivia)
{
removeOptions &= ~SyntaxRemoveOptions.KeepLeadingTrivia;
}
SyntaxTriviaList trailingTrivia = usingDirective.GetTrailingTrivia();
if (trailingTrivia.Count == 1 &&
trailingTrivia.First().IsEndOfLineTrivia())
{
removeOptions &= ~SyntaxRemoveOptions.KeepTrailingTrivia;
}
return(removeOptions);
}
private static UsingDirectiveSyntax RemoveLeadingAndTrailingCompilerDirectives(UsingDirectiveSyntax usingSyntax)
{
UsingDirectiveSyntax usingDirectiveToUse = usingSyntax;
if (usingDirectiveToUse.HasLeadingTrivia)
{
if (usingDirectiveToUse.HasLeadingTrivia)
{
var newLeadingTrivia = RemoveCompilerDirectives(usingDirectiveToUse.GetLeadingTrivia());
usingDirectiveToUse = usingDirectiveToUse.WithLeadingTrivia(newLeadingTrivia);
}
if (usingDirectiveToUse.HasTrailingTrivia)
{
var newTrailingTrivia = RemoveCompilerDirectives(usingDirectiveToUse.GetTrailingTrivia());
usingDirectiveToUse = usingDirectiveToUse.WithTrailingTrivia(newTrailingTrivia);
}
}
return(usingDirectiveToUse);
}
private static void AnalyzeUsings(SyntaxNodeAnalysisContext context, SyntaxList <UsingDirectiveSyntax> usings)
{
int count = usings.Count;
if (count <= 1)
{
return;
}
UsingDirectiveSyntax usingDirective1 = usings[0];
for (int i = 1; i < count; i++, usingDirective1 = usings[i - 1])
{
if (usingDirective1.StaticKeyword.IsKind(SyntaxKind.StaticKeyword))
{
return;
}
if (usingDirective1.Alias != null)
{
return;
}
UsingDirectiveSyntax usingDirective2 = usings[i];
if (usingDirective2.StaticKeyword.IsKind(SyntaxKind.StaticKeyword))
{
return;
}
if (usingDirective2.Alias != null)
{
return;
}
SyntaxTriviaList trailingTrivia = usingDirective1.GetTrailingTrivia();
if (!SyntaxTriviaAnalysis.IsOptionalWhitespaceThenOptionalSingleLineCommentThenEndOfLineTrivia(trailingTrivia))
{
continue;
}
IdentifierNameSyntax rootNamespace1 = usingDirective1.GetRootNamespace();
if (rootNamespace1 == null)
{
continue;
}
IdentifierNameSyntax rootNamespace2 = usingDirective2.GetRootNamespace();
if (rootNamespace2 == null)
{
continue;
}
SyntaxTriviaList leadingTrivia = usingDirective2.GetLeadingTrivia();
bool isEmptyLine = SyntaxTriviaAnalysis.StartsWithOptionalWhitespaceThenEndOfLineTrivia(leadingTrivia);
if (string.Equals(rootNamespace1.Identifier.ValueText, rootNamespace2.Identifier.ValueText, StringComparison.Ordinal))
{
if (isEmptyLine)
{
DiagnosticHelpers.ReportDiagnosticIfNotSuppressed(
context,
DiagnosticDescriptors.RemoveEmptyLineBetweenUsingDirectivesWithSameRootNamespace,
Location.Create(context.Node.SyntaxTree, leadingTrivia[0].Span.WithLength(0)));
}
}
else if (!context.IsAnalyzerSuppressed(DiagnosticDescriptors.AddEmptyLineBetweenUsingDirectivesWithDifferentRootNamespaceOrViceVersa))
{
if (isEmptyLine)
{
if (!context.IsAnalyzerSuppressed(AnalyzerOptions.RemoveEmptyLineBetweenUsingDirectivesWithDifferentRootNamespace))
{
DiagnosticHelpers.ReportDiagnostic(
context,
DiagnosticDescriptors.ReportOnly.RemoveEmptyLineBetweenUsingDirectivesWithDifferentRootNamespace,
Location.Create(context.Node.SyntaxTree, leadingTrivia[0].Span.WithLength(0)),
properties: DiagnosticProperties.AnalyzerOption_Invert);
}
}
else if (context.IsAnalyzerSuppressed(AnalyzerOptions.RemoveEmptyLineBetweenUsingDirectivesWithDifferentRootNamespace))
{
DiagnosticHelpers.ReportDiagnostic(
context,
DiagnosticDescriptors.AddEmptyLineBetweenUsingDirectivesWithDifferentRootNamespaceOrViceVersa,
Location.Create(context.Node.SyntaxTree, trailingTrivia.Last().Span.WithLength(0)));
}
}
}
}
private static void AnalyzeUsings(SyntaxNodeAnalysisContext context, SyntaxList <UsingDirectiveSyntax> usings)
{
int count = usings.Count;
if (count <= 1)
{
return;
}
UsingDirectiveSyntax usingDirective1 = usings[0];
for (int i = 1; i < count; i++, usingDirective1 = usings[i - 1])
{
if (usingDirective1.StaticKeyword.IsKind(SyntaxKind.StaticKeyword))
{
return;
}
if (usingDirective1.Alias != null)
{
return;
}
UsingDirectiveSyntax usingDirective2 = usings[i];
if (usingDirective2.StaticKeyword.IsKind(SyntaxKind.StaticKeyword))
{
return;
}
if (usingDirective2.Alias != null)
{
return;
}
SyntaxTriviaList trailingTrivia = usingDirective1.GetTrailingTrivia();
if (!SyntaxTriviaAnalysis.IsOptionalWhitespaceThenOptionalSingleLineCommentThenEndOfLineTrivia(trailingTrivia))
{
continue;
}
IdentifierNameSyntax rootNamespace1 = usingDirective1.GetRootNamespace();
if (rootNamespace1 == null)
{
continue;
}
IdentifierNameSyntax rootNamespace2 = usingDirective2.GetRootNamespace();
if (rootNamespace2 == null)
{
continue;
}
SyntaxTriviaList leadingTrivia = usingDirective2.GetLeadingTrivia();
bool isEmptyLine = SyntaxTriviaAnalysis.StartsWithOptionalWhitespaceThenEndOfLineTrivia(leadingTrivia);
if (string.Equals(rootNamespace1.Identifier.ValueText, rootNamespace2.Identifier.ValueText, StringComparison.Ordinal))
{
if (isEmptyLine)
{
if (DiagnosticRules.RemoveBlankLineBetweenUsingDirectivesWithSameRootNamespace.IsEffective(context))
{
DiagnosticHelpers.ReportDiagnostic(
context,
DiagnosticRules.RemoveBlankLineBetweenUsingDirectivesWithSameRootNamespace,
Location.Create(context.Node.SyntaxTree, leadingTrivia[0].Span.WithLength(0)));
}
if (DiagnosticRules.BlankLineBetweenUsingDirectives.IsEffective(context) &&
context.GetBlankLineBetweenUsingDirectives() == UsingDirectiveBlankLineStyle.Never)
{
DiagnosticHelpers.ReportDiagnostic(
context,
DiagnosticRules.BlankLineBetweenUsingDirectives,
Location.Create(context.Node.SyntaxTree, leadingTrivia[0].Span.WithLength(0)),
properties: DiagnosticProperties.AnalyzerOption_Invert,
"Remove");
}
}
}
else if (DiagnosticRules.BlankLineBetweenUsingDirectives.IsEffective(context))
{
UsingDirectiveBlankLineStyle style = context.GetBlankLineBetweenUsingDirectives();
if (isEmptyLine)
{
if (style == UsingDirectiveBlankLineStyle.Never)
{
DiagnosticHelpers.ReportDiagnostic(
context,
DiagnosticRules.BlankLineBetweenUsingDirectives,
Location.Create(context.Node.SyntaxTree, leadingTrivia[0].Span.WithLength(0)),
properties: DiagnosticProperties.AnalyzerOption_Invert,
"Remove");
}
}
else if (style == UsingDirectiveBlankLineStyle.SeparateGroups)
{
DiagnosticHelpers.ReportDiagnostic(
context,
DiagnosticRules.BlankLineBetweenUsingDirectives,
Location.Create(context.Node.SyntaxTree, trailingTrivia.Last().Span.WithLength(0)),
"Add");
}
}
}
}
private static void AnalyzeUsings(SyntaxNodeAnalysisContext context, SyntaxList <UsingDirectiveSyntax> usings)
{
int count = usings.Count;
if (count <= 1)
{
return;
}
UsingDirectiveSyntax usingDirective1 = usings[0];
for (int i = 1; i < count; i++, usingDirective1 = usings[i - 1])
{
if (usingDirective1.StaticKeyword.IsKind(SyntaxKind.StaticKeyword))
{
return;
}
if (usingDirective1.Alias != null)
{
return;
}
UsingDirectiveSyntax usingDirective2 = usings[i];
if (usingDirective2.StaticKeyword.IsKind(SyntaxKind.StaticKeyword))
{
return;
}
if (usingDirective2.Alias != null)
{
return;
}
SyntaxTriviaList trailingTrivia = usingDirective1.GetTrailingTrivia();
if (!SyntaxTriviaAnalysis.IsOptionalWhitespaceThenOptionalSingleLineCommentThenEndOfLineTrivia(trailingTrivia))
{
continue;
}
IdentifierNameSyntax rootNamespace1 = usingDirective1.GetRootNamespace();
if (rootNamespace1 == null)
{
continue;
}
IdentifierNameSyntax rootNamespace2 = usingDirective2.GetRootNamespace();
if (rootNamespace2 == null)
{
continue;
}
SyntaxTriviaList leadingTrivia = usingDirective2.GetLeadingTrivia();
bool isEmptyLine = SyntaxTriviaAnalysis.StartsWithOptionalWhitespaceThenEndOfLineTrivia(leadingTrivia);
if (string.Equals(rootNamespace1.Identifier.ValueText, rootNamespace2.Identifier.ValueText, StringComparison.Ordinal))
{
if (isEmptyLine)
{
ReportDiagnostic(
context,
DiagnosticDescriptors.RemoveEmptyLineBetweenUsingDirectivesWithSameRootNamespace,
leadingTrivia[0]);
}
}
else if (isEmptyLine)
{
ReportDiagnostic(
context,
DiagnosticDescriptors.RemoveEmptyLineBetweenUsingDirectivesWithDifferentRootNamespace,
leadingTrivia[0]);
}
else
{
ReportDiagnostic(
context,
DiagnosticDescriptors.AddEmptyLineBetweenUsingDirectivesWithDifferentRootNamespace,
trailingTrivia.Last());
}
}
}
private UsingDirectiveSyntax SingleTrailingTrivia(UsingDirectiveSyntax usingDirectiveSyntax)
{
if (usingDirectiveSyntax.HasTrailingTrivia)
{
return(usingDirectiveSyntax.WithoutLeadingTrivia().WithTrailingTrivia(usingDirectiveSyntax.GetTrailingTrivia()[0]));
}
if (usingDirectiveSyntax.HasLeadingTrivia)
{
return(usingDirectiveSyntax.WithoutLeadingTrivia());
}
return(usingDirectiveSyntax);
}
