private void AnalyzeIfStatement(SyntaxNodeAnalysisContext context)
{
if (GeneratedCodeAnalyzer?.IsGeneratedCode(context) == true)
{
return;
}
if (context.Node.Parent?.IsKind(SyntaxKind.ElseClause) == true)
{
return;
}
var ifStatement = (IfStatementSyntax)context.Node;
if (ifStatement.Else != null)
{
var result = new IfElseAnalysisResult(ifStatement);
if (result.AddBraces)
{
context.ReportDiagnostic(
DiagnosticDescriptors.AddBracesToIfElse,
ifStatement.GetLocation());
}
if (result.RemoveBraces)
{
context.ReportDiagnostic(
DiagnosticDescriptors.RemoveBracesFromIfElse,
ifStatement.GetLocation());
RemoveBracesFromIfElseFadeOut(context, ifStatement);
}
}
MergeIfStatementWithNestedIfStatementAnalyzer.Analyze(context, ifStatement);
SimplifyIfStatementToReturnStatementAnalyzer.Analyze(context);
if (SimplifyIfElseStatementRefactoring.CanRefactor(ifStatement, context.SemanticModel, context.CancellationToken) &&
!ifStatement.SpanContainsDirectives())
{
context.ReportDiagnostic(
DiagnosticDescriptors.SimplifyIfElseStatement,
ifStatement.GetLocation());
}
}
public static Task <Document> RefactorAsync(
Document document,
IfStatementSyntax ifStatement,
CancellationToken cancellationToken = default(CancellationToken))
{
IfStatementSyntax nestedIf = MergeIfStatementWithNestedIfStatementAnalyzer.GetNestedIfStatement(ifStatement);
ExpressionSyntax left = ifStatement.Condition.Parenthesize();
ExpressionSyntax right = nestedIf.Condition;
if (!right.IsKind(SyntaxKind.LogicalAndExpression))
{
right = right.Parenthesize();
}
BinaryExpressionSyntax newCondition = CSharpFactory.LogicalAndExpression(left, right);
IfStatementSyntax newNode = GetNewIfStatement(ifStatement, nestedIf)
.WithCondition(newCondition)
.WithFormatterAnnotation();
return(document.ReplaceNodeAsync(ifStatement, newNode, cancellationToken));
}