示例#1
0
        private static void AnalyzeCatchClause(SyntaxNodeAnalysisContext context)
        {
            var catchClause = (CatchClauseSyntax)context.Node;

            CatchDeclarationSyntax declaration = catchClause.Declaration;

            if (declaration == null)
            {
                return;
            }

            SemanticModel     semanticModel     = context.SemanticModel;
            CancellationToken cancellationToken = context.CancellationToken;

            ILocalSymbol symbol = semanticModel.GetDeclaredSymbol(declaration, cancellationToken);

            if (symbol?.IsErrorType() != false)
            {
                return;
            }

            ExpressionSyntax expression = null;
            Walker           walker     = null;

            try
            {
                walker = Walker.GetInstance();

                walker.Symbol            = symbol;
                walker.SemanticModel     = semanticModel;
                walker.CancellationToken = cancellationToken;

                walker.VisitBlock(catchClause.Block);

                expression = walker.ThrowStatement?.Expression;
            }
            finally
            {
                if (walker != null)
                {
                    Walker.Free(walker);
                }
            }

            if (expression != null)
            {
                DiagnosticHelpers.ReportDiagnostic(
                    context,
                    DiagnosticRules.RemoveOriginalExceptionFromThrowStatement,
                    expression);
            }
        }
示例#2
0
        public List <Point> FindBorder(Bitmap image, Point start, Color borderColor)
        {
            var border = new List <Point> {
                start
            };
            var walker = Walker.GetInstance(start);

            do
            {
                walker.TurnRight();
                var walkerBorderNeighbor = FindBorderNeighborInSquareAroundWalker(image, walker, borderColor);
                if (walkerBorderNeighbor == null)
                {
                    continue;
                }
                border.Add(walkerBorderNeighbor.Position);
                walker = walkerBorderNeighbor;
            } while (walker.Position != start);
            return(border);
        }