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Multi Variable Array Operation Acceptor
Posted Date:
Total Responses: 0
Posted By: Mahesh Member Level: Platinum Points/Cash: 8
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using System;
using System.Collections.Generic;
using System.Text;
using BaseTypes;
namespace FormulaEditor
{
public class MultiVariableArrayOperationAcceptor : IMultiVariableOperationAcceptor, IMultiVariableOperation
{
#region Fields
private IMultiVariableOperationAcceptor acceptor;
private IMultiVariableOperation operation;
private IMultiVariableOperation op;
protected object[] y;
protected object[] types;
protected ArrayReturnType returnType;
protected object returnValue;
protected bool[] isArray;
protected int length = 0;
protected int[] rank;
protected int[][] ranks;
protected object[][] yy;
protected object[] yt;
#endregion
public MultiVariableArrayOperationAcceptor(IMultiVariableOperationAcceptor acceptor)
{
this.acceptor = acceptor;
}
#region IMultiVariableOperationAcceptor Members
public IMultiVariableOperation AcceptOperation(MathSymbol symbol)
{
operation = acceptor.AcceptOperation(symbol);
return this;
}
#endregion
#region IOperationAcceptor Members
public IObjectOperation Accept(object type)
{
IObjectOperation ownOp = acceptor.Accept(type);
if (ownOp != null)
{
return ownOp;
}
if (type is ArrayReturnType)
{
ArrayReturnType a = type as ArrayReturnType;
if (a.IsObjectType)
{
op = acceptor.Accept(a) as IMultiVariableOperation;
if (op == null)
{
return null;
}
types = new object[] { type };
ArrayOperation.CreateAllArrays(op, types, out y, out yy, out rank, out ranks);
returnType = new ArrayReturnType(op.ReturnType, rank, true);
return this;
}
}
return null;
}
#endregion
#region IMultiVariableOperation Members
public IObjectOperation Accept(object[] types)
{
this.types = types;
if (acceptor is IMultiVariableOperation)
{
IMultiVariableOperation ma = acceptor as IMultiVariableOperation;
IObjectOperation ownOp = ma.Accept(types);
if (ownOp != null)
{
return ownOp;
}
}
if (types == null)
{
return acceptor.Accept(null);
}
object[] t = new object[types.Length];
bool isArray = false;
for (int i = 0; i < t.Length; i++)
{
t[i] = ArrayReturnType.GetBaseType(types[i]);
if (types[i] is ArrayReturnType)
{
isArray = true;
}
}
IObjectOperation opr = operation.Accept(t);
if (opr == null)
{
return null;
}
if (!isArray)
{
return opr;
}
ArrayOperation.CreateAllArrays(opr, types, out y, out yy, out rank, out ranks);
returnType = new ArrayReturnType(opr.ReturnType, rank, true);
returnValue = y;
if (types != null)
{
if (types.Length > 0)
{
yt = new object[types.Length];
}
}
return this;
}
#endregion
#region IObjectOperation Members
public int Arity
{
get
{
return types.Length;
}
}
public object this[object[] x]
{
get
{
ArrayOperation.PerformOperation(operation, returnValue as object[], x, yy,
rank.Length, ranks, rank, yt);
return returnValue;
}
}
public object ReturnType
{
get
{
return returnType;
}
}
public bool IsPowered
{
get
{
return op.IsPowered;
}
}
#endregion
}
}
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