private void AnalyzeIfOrElseStatement(SyntaxNodeAnalysisContext context)
{
if (context.IsGeneratedOrNonUserCode())
{
return;
}
IfStatementSyntax ifStatement = context.Node as IfStatementSyntax;
// Is this an if statement followed directly by a call with no braces?
if ((ifStatement != null) &&
(ifStatement.Statement != null) &&
(ifStatement.Statement.IsKind(SyntaxKind.Block) == false))
{
Location loc = ifStatement.GetLocation();
Diagnostic diagnostic = Diagnostic.Create(Rule, loc, "if");
context.ReportDiagnostic(diagnostic);
}
// Is this an else clause followed by a call with no braces?
ElseClauseSyntax elseSyntax = context.Node as ElseClauseSyntax;
if ((elseSyntax != null) &&
(elseSyntax.Statement != null) &&
(elseSyntax.Statement.IsKind(SyntaxKind.IfStatement) == false) &&
(elseSyntax.Statement.IsKind(SyntaxKind.Block) == false))
{
Location loc = elseSyntax.GetLocation();
Diagnostic diagnostic = Diagnostic.Create(Rule, loc, "else");
context.ReportDiagnostic(diagnostic);
}
}
public static void Analyze(SyntaxNodeAnalysisContext context, ElseClauseSyntax elseClause)
{
StatementSyntax statement = elseClause.Statement;
if (statement?.IsKind(SyntaxKind.Block) == true)
{
var block = (BlockSyntax)statement;
if (!block.Statements.Any() &&
elseClause
.DescendantTrivia(elseClause.Span)
.All(f => f.IsWhitespaceOrEndOfLineTrivia()))
{
context.ReportDiagnostic(DiagnosticDescriptors.RemoveEmptyElseClause, elseClause.GetLocation());
}
}
}