private IEnumerable <SyntaxNode> VerifyTryBlock(TryBlockSyntax node, SyntaxNode nextBlock)
{
if (!node.Statements.Any() && NoCommentsBefore(nextBlock))
{
yield return(node.TryStatement);
}
}
private IEnumerable <SyntaxNode> VisitTryBlock(TryBlockSyntax node)
{
var result = new List <SyntaxNode>();
if (node.CatchBlocks.Any() && node.FinallyBlock != null)
{
result.AddRange(VerifyTryAndMostCatches(node));
result.AddRange(VerifyCatchBlock(node.CatchBlocks[node.CatchBlocks.Count - 1], node.FinallyBlock));
result.AddRange(VerifyFinallyBlock(node.FinallyBlock, node.EndTryStatement));
}
else if (node.FinallyBlock != null)
{
result.AddRange(VerifyTryBlock(node, node.FinallyBlock));
result.AddRange(VerifyFinallyBlock(node.FinallyBlock, node.EndTryStatement));
}
else if (node.CatchBlocks.Any())
{
result.AddRange(VerifyTryAndMostCatches(node));
result.AddRange(VerifyCatchBlock(node.CatchBlocks[node.CatchBlocks.Count - 1], node.EndTryStatement));
}
else
{
throw new InvalidOperationException("Try block must be followed by at least one catch or one finally block");
}
return(result);
}
public override SyntaxList <StatementSyntax> VisitTryBlock(TryBlockSyntax node)
{
var cSharpSyntaxNodes = wrappedVisitor.Visit(node);
var tryStatementCs = (TryStatementSyntax)cSharpSyntaxNodes.Single();
var tryTokenCs = tryStatementCs.TryKeyword;
var tryStatementWithTryTrivia = tryStatementCs.ReplaceToken(tryTokenCs, tryTokenCs.WithConvertedTriviaFrom(node.TryStatement));
var tryStatementWithAllTrivia = triviaConverter.PortConvertedTrivia(node, tryStatementWithTryTrivia);
return(cSharpSyntaxNodes.Replace(tryStatementCs, tryStatementWithAllTrivia));
}
private IEnumerable <SyntaxNode> VerifyTryAndMostCatches(TryBlockSyntax node)
{
var result = new List <SyntaxNode>();
result.AddRange(VerifyTryBlock(node, node.CatchBlocks[0]));
// verify all catches except the last one
for (int i = 0; i < node.CatchBlocks.Count - 1; i++)
{
result.AddRange(VerifyCatchBlock(node.CatchBlocks[i], node.CatchBlocks[i + 1]));
}
return(result);
}
public override void VisitTryBlock(TryBlockSyntax node) => counter.CheckNesting(node.TryStatement.TryKeyword, () => base.VisitTryBlock(node));
public override void VisitTryBlock(TryBlockSyntax node)
{
LogicalLineCount++;
base.VisitTryBlock(node);
}
