public Signature(Operands operands)
{
_signature = new SignatureElement[operands.Count];
for (int index = 0; index < Count; index++)
{
_signature[index] = new SignatureElement(operands[index].DataType, operands[index].Modifier);
}
}
public Signature(Signature signature)
{
_signature = new SignatureElement[signature.Count];
for (int index = 0; index < Count; index++)
{
_signature[index] = signature[index];
}
}
public bool Is(SignatureElement AElement)
{
return
(#if VARBINDINGEXACT
((FModifier == Modifier.Var) && (AElement.Modifier == Modifier.Var) && FDataType.Equals(AElement.IDataType)) ||
((FModifier != Modifier.Var) && (AElement.Modifier != Modifier.Var) && FDataType.Is(AElement.IDataType)));
#else
(
((FModifier == Modifier.Var) && (AElement.Modifier == Modifier.Var)) ||
((FModifier != Modifier.Var) && (AElement.Modifier != Modifier.Var))
) &&
FDataType.Is(AElement.DataType);
#endif
}
public override bool Equals(object AObject)
{
if (AObject is SignatureElement)
{
SignatureElement LObject = (SignatureElement)AObject;
return
((
((FModifier == Modifier.Var) && (LObject.Modifier == Modifier.Var)) ||
((FModifier != Modifier.Var) && (LObject.Modifier != Modifier.Var))
) &&
FDataType.Equals(LObject.DataType));
}
return(false);
}
// TODO: This should be compiled and added as cleanup nodes
// TODO: Handle var arguments for more than just stack references
protected void CleanupOperand(Program program, Schema.SignatureElement signatureElement, PlanNode argumentNode, object argumentValue)
{
switch (signatureElement.Modifier)
{
case Modifier.In:
DataValue.DisposeValue(program.ValueManager, argumentValue);
break;
case Modifier.Var:
if (argumentNode.DataType is Schema.ScalarType)
{
argumentValue = ValueUtility.ValidateValue(program, (Schema.ScalarType)argumentNode.DataType, argumentValue, _operator);
}
program.Stack.Poke(((StackReferenceNode)argumentNode).Location, argumentValue);
break;
}
}