public RedILNode VisitUnaryOperatorExpression(UnaryOperatorExpression unaryOperatorExpression, State data)
{
var operand = CastUtilities.CastRedILNode <ExpressionNode>(unaryOperatorExpression.Expression.AcceptVisitor(this, data.NewState(unaryOperatorExpression, null)));
if (OperatorUtilities.IsIncrement(unaryOperatorExpression.Operator))
{
if (data.ParentNode.NodeType != NodeType.Statement)
{
throw new RedILException($"Incremental operators can only be used within statements");
}
BinaryExpressionOperator binaryOp = default;
switch (unaryOperatorExpression.Operator)
{
case UnaryOperatorType.Increment:
case UnaryOperatorType.PostIncrement:
binaryOp = BinaryExpressionOperator.Add;
break;
case UnaryOperatorType.Decrement:
case UnaryOperatorType.PostDecrement:
binaryOp = BinaryExpressionOperator.Subtract;
break;
}
var constantOne = new ConstantValueNode(DataValueType.Integer, 1);
return(new AssignNode(operand, VisitBinaryOperatorExpression(operand, constantOne, binaryOp, data.NewState(unaryOperatorExpression, null))));
}
var op = OperatorUtilities.UnaryOperator(unaryOperatorExpression.Operator);
return(new UnaryExpressionNode(op, operand));
}
private ExpressionNode VisitBinaryOperatorExpression(ExpressionNode left, ExpressionNode right, BinaryExpressionOperator op, State data)
{
if (OperatorUtilities.IsBoolean(op))
{
return(new BinaryExpressionNode(DataValueType.Boolean, op, left, right));
}
else if (OperatorUtilities.IsArithmatic(op))
{
if (left.DataType == DataValueType.String ||
right.DataType == DataValueType.String)
{
return(new BinaryExpressionNode(DataValueType.String, BinaryExpressionOperator.StringConcat, left, right));
}
else if (left.DataType == DataValueType.Float ||
right.DataType == DataValueType.Float)
{
return(new BinaryExpressionNode(DataValueType.Float, op, left, right));
}
else if (left.DataType == DataValueType.Integer &&
right.DataType == DataValueType.Integer)
{
return(new BinaryExpressionNode(DataValueType.Integer, op, left, right));
}
}
else if (op == BinaryExpressionOperator.NullCoalescing)
{
return(new BinaryExpressionNode(left.DataType, op, left, right));
}
throw new RedILException($"Unsupported operator '{op}' with data types '{left.DataType}' and '{right.DataType}'");
}
public RedILNode VisitAssignmentExpression(AssignmentExpression assignmentExpression, State data)
{
if (data.ParentNode.NodeType != NodeType.Statement)
{
throw new RedILException("Assigment is only possible within a statement");
}
var assignNode = new AssignNode();
var left = CastUtilities.CastRedILNode <ExpressionNode>(assignmentExpression.Left.AcceptVisitor(this, data.NewState(assignmentExpression, assignNode)));
var right = CastUtilities.CastRedILNode <ExpressionNode>(assignmentExpression.Right.AcceptVisitor(this, data.NewState(assignmentExpression, assignNode)));
if (assignmentExpression.Operator == AssignmentOperatorType.Assign)
{
assignNode.Left = left;
assignNode.Right = right;
}
else
{
var op = OperatorUtilities.BinaryOperator(assignmentExpression.Operator);
assignNode.Left = left;
assignNode.Right = VisitBinaryOperatorExpression(left, right, op, data);
}
return(assignNode);
}
public RedILNode VisitBinaryOperatorExpression(BinaryOperatorExpression binaryOperatorExpression, State data)
{
//TODO: send parent node
var op = OperatorUtilities.BinaryOperator(binaryOperatorExpression.Operator);
var left = CastUtilities.CastRedILNode <ExpressionNode>(binaryOperatorExpression.Left.AcceptVisitor(this, data.NewState(binaryOperatorExpression, null)));
var right = CastUtilities.CastRedILNode <ExpressionNode>(binaryOperatorExpression.Right.AcceptVisitor(this, data.NewState(binaryOperatorExpression, null)));
return(VisitBinaryOperatorExpression(left, right, op, data));
}
