private static void AnalyzeCatchClause(SyntaxNodeAnalysisContext context)
{
var catchClause = (CatchClauseSyntax)context.Node;
if (catchClause.Filter != null)
{
return;
}
if (!(catchClause.Block.Statements.FirstOrDefault() is IfStatementSyntax ifStatement))
{
return;
}
if (IsThrowStatementWithoutExpression(ifStatement.Statement.SingleNonBlockStatementOrDefault())
^ IsThrowStatementWithoutExpression(ifStatement.Else?.Statement.SingleNonBlockStatementOrDefault()))
{
if (AwaitExpressionWalker.ContainsAwaitExpression(ifStatement.Condition))
{
return;
}
if (ifStatement.ContainsUnbalancedIfElseDirectives())
{
return;
}
DiagnosticHelpers.ReportDiagnostic(context, DiagnosticDescriptors.UseExceptionFilter, ifStatement.IfKeyword);
}
}
private RemoveAsyncAwaitAnalysis(AwaitExpressionWalker walker)
{
Walker = walker;
AwaitExpression = null;
}
