private static void AnalyzeBinaryExpression(SyntaxNodeAnalysisContext context)
{
var binaryExpression = (BinaryExpressionSyntax)context.Node;
ExpressionSyntax left = binaryExpression.Left;
if (left.IsMissing)
{
return;
}
ExpressionSyntax right = binaryExpression.Right;
if (right.IsMissing)
{
return;
}
if (!SyntaxTriviaAnalysis.IsTokenFollowedWithNewLineAndNotPrecededWithNewLine(left, binaryExpression.OperatorToken, right))
{
return;
}
if (CSharpUtility.IsStringConcatenation(binaryExpression, context.SemanticModel, context.CancellationToken))
{
return;
}
context.ReportDiagnostic(
DiagnosticDescriptors.AddNewLineBeforeBinaryOperatorInsteadOfAfterIt,
Location.Create(binaryExpression.SyntaxTree, binaryExpression.OperatorToken.Span.WithLength(0)));
}
private static void AnalyzeConditionalExpression(SyntaxNodeAnalysisContext context)
{
var conditionalExpression = (ConditionalExpressionSyntax)context.Node;
ExpressionSyntax condition = conditionalExpression.Condition;
if (condition.IsMissing)
{
return;
}
ExpressionSyntax whenTrue = conditionalExpression.WhenTrue;
if (whenTrue.IsMissing)
{
return;
}
if (SyntaxTriviaAnalysis.IsTokenFollowedWithNewLineAndNotPrecededWithNewLine(condition, conditionalExpression.QuestionToken, whenTrue))
{
ReportDiagnostic(context, conditionalExpression.QuestionToken);
}
else
{
ExpressionSyntax whenFalse = conditionalExpression.WhenFalse;
if (!whenFalse.IsMissing &&
SyntaxTriviaAnalysis.IsTokenFollowedWithNewLineAndNotPrecededWithNewLine(whenTrue, conditionalExpression.ColonToken, whenFalse))
{
ReportDiagnostic(context, conditionalExpression.ColonToken);
}
}
}
private static void AnalyzeConditionalAccess(SyntaxNodeAnalysisContext context)
{
var conditionalAccess = (ConditionalAccessExpressionSyntax)context.Node;
ExpressionSyntax left = conditionalAccess.Expression;
if (left.IsMissing)
{
return;
}
ExpressionSyntax right = conditionalAccess.WhenNotNull;
if (right.IsMissing)
{
return;
}
NewLinePosition newLinePosition = context.GetNullConditionalOperatorNewLinePosition();
if (newLinePosition == NewLinePosition.None)
{
return;
}
SyntaxToken operatorToken = conditionalAccess.OperatorToken;
if (SyntaxTriviaAnalysis.IsTokenFollowedWithNewLineAndNotPrecededWithNewLine(left, operatorToken, right))
{
if (newLinePosition == NewLinePosition.Before)
{
DiagnosticHelpers.ReportDiagnostic(
context,
DiagnosticRules.PlaceNewLineAfterOrBeforeNullConditionalOperator,
operatorToken,
"before");
}
}
else if (SyntaxTriviaAnalysis.IsTokenPrecededWithNewLineAndNotFollowedWithNewLine(left, operatorToken, right) &&
newLinePosition == NewLinePosition.After)
{
DiagnosticHelpers.ReportDiagnostic(
context,
DiagnosticRules.PlaceNewLineAfterOrBeforeNullConditionalOperator,
Location.Create(conditionalAccess.SyntaxTree, operatorToken.Span),
DiagnosticProperties.NewLinePosition_After,
"after");
}
}
private static void AnalyzeBinaryExpression(SyntaxNodeAnalysisContext context)
{
var binaryExpression = (BinaryExpressionSyntax)context.Node;
ExpressionSyntax left = binaryExpression.Left;
if (left.IsMissing)
{
return;
}
ExpressionSyntax right = binaryExpression.Right;
if (right.IsMissing)
{
return;
}
NewLinePosition newLinePosition = context.GetBinaryExpressionNewLinePosition();
if (newLinePosition == NewLinePosition.None)
{
return;
}
if (SyntaxTriviaAnalysis.IsTokenFollowedWithNewLineAndNotPrecededWithNewLine(left, binaryExpression.OperatorToken, right))
{
if (newLinePosition == NewLinePosition.Before)
{
DiagnosticHelpers.ReportDiagnostic(
context,
DiagnosticRules.PlaceNewLineAfterOrBeforeBinaryOperator,
Location.Create(binaryExpression.SyntaxTree, binaryExpression.OperatorToken.Span.WithLength(0)),
"before");
}
}
else if (SyntaxTriviaAnalysis.IsTokenPrecededWithNewLineAndNotFollowedWithNewLine(left, binaryExpression.OperatorToken, right) &&
newLinePosition == NewLinePosition.After)
{
DiagnosticHelpers.ReportDiagnostic(
context,
DiagnosticRules.PlaceNewLineAfterOrBeforeBinaryOperator,
Location.Create(binaryExpression.SyntaxTree, binaryExpression.OperatorToken.Span.WithLength(0)),
properties: DiagnosticProperties.AnalyzerOption_Invert,
"after");
}
}
private static void AnalyzeBinaryExpression(SyntaxNodeAnalysisContext context)
{
var binaryExpression = (BinaryExpressionSyntax)context.Node;
ExpressionSyntax left = binaryExpression.Left;
if (left.IsMissing)
{
return;
}
ExpressionSyntax right = binaryExpression.Right;
if (right.IsMissing)
{
return;
}
if (SyntaxTriviaAnalysis.IsTokenFollowedWithNewLineAndNotPrecededWithNewLine(left, binaryExpression.OperatorToken, right))
{
if (context.IsAnalyzerSuppressed(AnalyzerOptions.AddNewLineAfterBinaryOperatorInsteadOfBeforeIt))
{
ReportDiagnostic(DiagnosticDescriptors.AddNewLineBeforeBinaryOperatorInsteadOfAfterItOrViceVersa, ImmutableDictionary <string, string> .Empty);
}
}
else if (SyntaxTriviaAnalysis.IsTokenPrecededWithNewLineAndNotFollowedWithNewLine(left, binaryExpression.OperatorToken, right) &&
!context.IsAnalyzerSuppressed(AnalyzerOptions.AddNewLineAfterBinaryOperatorInsteadOfBeforeIt))
{
ReportDiagnostic(DiagnosticDescriptors.ReportOnly.AddNewLineAfterBinaryOperatorInsteadOfBeforeIt, DiagnosticProperties.AnalyzerOption_Invert);
}
void ReportDiagnostic(DiagnosticDescriptor descriptor, ImmutableDictionary <string, string> properties)
{
if (CSharpUtility.IsStringConcatenation(binaryExpression, context.SemanticModel, context.CancellationToken))
{
return;
}
DiagnosticHelpers.ReportDiagnostic(
context,
descriptor,
Location.Create(binaryExpression.SyntaxTree, binaryExpression.OperatorToken.Span.WithLength(0)),
properties: properties);
}
}
private static void AnalyzeConditionalExpression(SyntaxNodeAnalysisContext context)
{
var conditionalExpression = (ConditionalExpressionSyntax)context.Node;
ExpressionSyntax condition = conditionalExpression.Condition;
if (condition.IsMissing)
{
return;
}
ExpressionSyntax whenTrue = conditionalExpression.WhenTrue;
if (whenTrue.IsMissing)
{
return;
}
if (SyntaxTriviaAnalysis.IsTokenFollowedWithNewLineAndNotPrecededWithNewLine(condition, conditionalExpression.QuestionToken, whenTrue))
{
if (!AnalyzerOptions.AddNewLineAfterConditionalOperatorInsteadOfBeforeIt.IsEnabled(context))
{
ReportDiagnostic(DiagnosticRules.AddNewLineBeforeConditionalOperatorInsteadOfAfterItOrViceVersa, conditionalExpression.QuestionToken, ImmutableDictionary <string, string> .Empty);
return;
}
}
else if (SyntaxTriviaAnalysis.IsTokenPrecededWithNewLineAndNotFollowedWithNewLine(condition, conditionalExpression.QuestionToken, whenTrue))
{
if (AnalyzerOptions.AddNewLineAfterConditionalOperatorInsteadOfBeforeIt.IsEnabled(context))
{
ReportDiagnostic(DiagnosticRules.ReportOnly.AddNewLineAfterConditionalOperatorInsteadOfBeforeIt, conditionalExpression.QuestionToken, DiagnosticProperties.AnalyzerOption_Invert);
return;
}
}
ExpressionSyntax whenFalse = conditionalExpression.WhenFalse;
if (!whenFalse.IsMissing)
{
if (SyntaxTriviaAnalysis.IsTokenFollowedWithNewLineAndNotPrecededWithNewLine(whenTrue, conditionalExpression.ColonToken, whenFalse))
{
if (!AnalyzerOptions.AddNewLineAfterConditionalOperatorInsteadOfBeforeIt.IsEnabled(context))
{
ReportDiagnostic(DiagnosticRules.AddNewLineBeforeConditionalOperatorInsteadOfAfterItOrViceVersa, conditionalExpression.ColonToken, ImmutableDictionary <string, string> .Empty);
}
}
else if (SyntaxTriviaAnalysis.IsTokenPrecededWithNewLineAndNotFollowedWithNewLine(whenTrue, conditionalExpression.ColonToken, whenFalse))
{
if (AnalyzerOptions.AddNewLineAfterConditionalOperatorInsteadOfBeforeIt.IsEnabled(context))
{
ReportDiagnostic(DiagnosticRules.ReportOnly.AddNewLineAfterConditionalOperatorInsteadOfBeforeIt, conditionalExpression.ColonToken, DiagnosticProperties.AnalyzerOption_Invert);
}
}
}
void ReportDiagnostic(DiagnosticDescriptor descriptor, SyntaxToken token, ImmutableDictionary <string, string> properties)
{
DiagnosticHelpers.ReportDiagnostic(
context,
descriptor,
Location.Create(token.SyntaxTree, token.Span.WithLength(0)),
properties: properties);
}
}
private static void AnalyzeConditionalExpression(SyntaxNodeAnalysisContext context)
{
var conditionalExpression = (ConditionalExpressionSyntax)context.Node;
ExpressionSyntax condition = conditionalExpression.Condition;
if (condition.IsMissing)
{
return;
}
ExpressionSyntax whenTrue = conditionalExpression.WhenTrue;
if (whenTrue.IsMissing)
{
return;
}
NewLinePosition newLinePosition = context.GetConditionalExpressionNewLinePosition();
if (newLinePosition == NewLinePosition.None)
{
return;
}
if (SyntaxTriviaAnalysis.IsTokenFollowedWithNewLineAndNotPrecededWithNewLine(condition, conditionalExpression.QuestionToken, whenTrue))
{
if (newLinePosition == NewLinePosition.Before)
{
ReportDiagnostic(conditionalExpression.QuestionToken, ImmutableDictionary <string, string> .Empty, "before");
return;
}
}
else if (SyntaxTriviaAnalysis.IsTokenPrecededWithNewLineAndNotFollowedWithNewLine(condition, conditionalExpression.QuestionToken, whenTrue))
{
if (newLinePosition == NewLinePosition.After)
{
ReportDiagnostic(conditionalExpression.QuestionToken, DiagnosticProperties.AnalyzerOption_Invert, "after");
return;
}
}
ExpressionSyntax whenFalse = conditionalExpression.WhenFalse;
if (!whenFalse.IsMissing)
{
if (SyntaxTriviaAnalysis.IsTokenFollowedWithNewLineAndNotPrecededWithNewLine(whenTrue, conditionalExpression.ColonToken, whenFalse))
{
if (newLinePosition == NewLinePosition.Before)
{
ReportDiagnostic(conditionalExpression.ColonToken, ImmutableDictionary <string, string> .Empty, "before");
}
}
else if (SyntaxTriviaAnalysis.IsTokenPrecededWithNewLineAndNotFollowedWithNewLine(whenTrue, conditionalExpression.ColonToken, whenFalse))
{
if (newLinePosition == NewLinePosition.After)
{
ReportDiagnostic(conditionalExpression.ColonToken, DiagnosticProperties.AnalyzerOption_Invert, "after");
}
}
}
void ReportDiagnostic(
SyntaxToken token,
ImmutableDictionary <string, string> properties,
string messageArg)
{
DiagnosticHelpers.ReportDiagnostic(
context,
DiagnosticRules.PlaceNewLineAfterOrBeforeConditionalOperator,
Location.Create(token.SyntaxTree, token.Span.WithLength(0)),
properties: properties,
messageArg);
}
}