IronPython.Compiler.Parser.FinishAssignments C# (CSharp) Метод

        private Statement FinishAssignments(Expression right) {
            List<Expression> left = null;
            Expression singleLeft = null;

            while (MaybeEat(TokenKind.Assign)) {
                string assignError = right.CheckAssign();
                if (assignError != null) {
                    ReportSyntaxError(right.StartIndex, right.EndIndex, assignError, ErrorCodes.SyntaxError | ErrorCodes.NoCaret);
                }

                if (singleLeft == null) {
                    singleLeft = right;
                } else {
                    if (left == null) {
                        left = new List<Expression>();
                        left.Add(singleLeft);
                    }
                    left.Add(right);
                }

                if (MaybeEat(TokenKind.KeywordYield)) {
                    right = ParseYieldExpression();
                } else {
                    right = ParseTestListAsExpr();
                }
            }

            if (left != null) {
                Debug.Assert(left.Count > 0);

                AssignmentStatement assign = new AssignmentStatement(left.ToArray(), right);
                assign.SetLoc(_globalParent, left[0].StartIndex, right.EndIndex);
                return assign;
            } else {
                Debug.Assert(singleLeft != null);

                AssignmentStatement assign = new AssignmentStatement(new[] { singleLeft }, right);
                assign.SetLoc(_globalParent, singleLeft.StartIndex, right.EndIndex);
                return assign;
            }
        }