private void AnalyseSyntax(SyntaxNodeAnalysisContext context)
{
var whileStatement = context.Node as WhileStatementSyntax;
if (whileStatement is null)
{
if (!Debugger.IsAttached)
{
Debugger.Launch();
}
return;
}
var problematicCatch = ThreadAbortSyntaxHelper.FindProblematicCatchClause(whileStatement, context.SemanticModel);
if (problematicCatch is null)
{
// no issues
return;
}
// For all such symbols, produce a diagnostic.
var diagnostic = Diagnostic.Create(Rule, problematicCatch.GetLocation());
context.ReportDiagnostic(diagnostic);
}
private async Task <Document> AddThrowStatement(Document document, WhileStatementSyntax whileStatement, CancellationToken cancellationToken)
{
var semanticModel = await document.GetSemanticModelAsync(cancellationToken).ConfigureAwait(false);
var catchBlock = ThreadAbortSyntaxHelper.FindProblematicCatchClause(whileStatement, semanticModel);
// This messes with the whitespace, but it's a PITA to get that right
var throwStatement = SyntaxFactory.ThrowStatement();
var statements = catchBlock.Block.Statements.Add(throwStatement);
var newCatchBlock = catchBlock.Block.WithStatements(statements);
// replace the syntax and return updated document
var root = await document.GetSyntaxRootAsync(cancellationToken).ConfigureAwait(false);
root = root.ReplaceNode(catchBlock.Block, newCatchBlock);
return(document.WithSyntaxRoot(root));
}
