/// <summary>
/// Executes an index opeation.
/// </summary>
public SkryptObject ExecuteIndex(IndexNode node, ScopeContext scopeContext)
{
var arguments = new List <SkryptObject>();
foreach (var subNode in node.Arguments)
{
var result = ExecuteExpression(subNode, scopeContext);
arguments.Add(result);
}
var Object = ExecuteExpression(node.Getter, scopeContext);
// Dynamically change type so we can get it's actual operations.
dynamic left = Convert.ChangeType(Object, Object.GetType());
Operation opLeft = SkryptObject.GetOperation(Operators.Index, Object.GetType(), arguments[0].GetType(), left.Operations);
OperationDelegate operation = null;
if (opLeft != null)
{
operation = opLeft.OperationDelegate;
}
else
{
_engine.ThrowError("No such operation as index " + left.Name + "!", node.Getter.Token);
}
var inputArray = new List <SkryptObject>(arguments);
inputArray.Insert(0, Object);
return(operation(inputArray.ToArray(), _engine));
}
/// <summary>
/// Evaluates a binary operation.
/// </summary>
public SkryptObject Eval(Operator operation, SkryptObject leftObject, SkryptObject rightObject, Node node = null)
{
dynamic left = Convert.ChangeType(leftObject, leftObject.GetType());
dynamic right = Convert.ChangeType(rightObject, rightObject.GetType());
Operation opLeft = SkryptObject.GetOperation(
operation.Type,
leftObject.GetType(),
rightObject.GetType(),
left.Operations
);
Operation opRight = SkryptObject.GetOperation(
operation.Type,
leftObject.GetType(),
rightObject.GetType(),
right.Operations
);
OperationDelegate operationDel = null;
if (opLeft != null)
{
operationDel = opLeft.OperationDelegate;
}
if (opRight != null)
{
operationDel = opRight.OperationDelegate;
}
if (operationDel == null)
{
ThrowError("No such operation as " + left.Name + " " + operation.Operation + " " + right.Name, node.Token);
}
var result = (SkryptType)operationDel(new[] { leftObject, rightObject }, this);
result.GetPropertiesFrom(Executor.GetType(result.TypeName, GlobalScope));
return(result);
}
