Boo.Lang.Compiler.Steps.ProcessMethodBodies.EnterBinaryExpression C# (CSharp) Метод

        public override bool EnterBinaryExpression(BinaryExpression node)
        {
            if (BinaryOperatorType.Assign != node.Operator)
                return true;

            if (NodeType.ReferenceExpression != node.Left.NodeType)
                return true;

            if (node.Left.Entity != null)
                return true;

            // Auto local declaration:
            // assign to unknown reference implies local
            // declaration
            ReferenceExpression reference = (ReferenceExpression)node.Left;
            IEntity entity = TryToResolveName(reference.Name);
            if (null == entity || TypeSystemServices.IsBuiltin(entity) || IsInaccessible(entity))
            {
                ProcessAutoLocalDeclaration(node, reference);
                return false;
            }

            return true;
        }