internal override bool BinaryOperation(BinaryOperationBinder binder, Any arg, out Any result)
{
var number = arg as Number;
if (number != null)
{
switch (binder.Operation)
{
case ExpressionType.Add:
result = new Number(Value + number.Value);
break;
case ExpressionType.Subtract:
result = new Number(Value - number.Value);
break;
case ExpressionType.Multiply:
result = new Number(Value * number.Value);
break;
case ExpressionType.Divide:
result = new Number(Value / number.Value);
break;
case ExpressionType.LessThan:
result = Value < number.Value ? Bool.True : Bool.False;
break;
case ExpressionType.LessThanOrEqual:
result = Value <= number.Value ? Bool.True : Bool.False;
break;
default:
throw new ArgumentOutOfRangeException();
}
return true;
}
return base.BinaryOperation(binder, arg, out result);
}
internal override bool GetMemberOperation(GetMemberBinder binder, out Any result)
{
if (Members.TryGetValue(binder.Name, out result))
{
return true;
}
return base.GetMemberOperation(binder, out result);
}
internal override bool UnaryOperation(UnaryOperationBinder binder, out Any result)
{
switch (binder.Operation)
{
case ExpressionType.IsTrue:
result = Value.Length > 0 ? Bool.True : Bool.False;
return true;
}
return base.UnaryOperation(binder, out result);
}
internal override bool GetMemberOperation(GetMemberBinder binder, out Any result)
{
Func<Iter, Any> member;
if (!members.TryGetValue(binder.Name, out member))
{
result = null;
return false;
}
result = member(this);
return true;
}
internal override bool UnaryOperation(UnaryOperationBinder binder, out Any result)
{
switch (binder.Operation)
{
case ExpressionType.IsTrue:
result = ((int)Value) != 0 ? Bool.True : Bool.False;
return true;
case ExpressionType.Negate:
result = new Number(-Value);
return true;
}
return base.UnaryOperation(binder, out result);
}
internal override bool BinaryOperation(BinaryOperationBinder binder, Any arg, out Any result)
{
var str = arg as String;
if (str != null)
{
switch (binder.Operation)
{
case ExpressionType.Add:
result = new String(Value + str.Value);
break;
default:
throw new ArgumentOutOfRangeException();
}
return true;
}
return base.BinaryOperation(binder, arg, out result);
}
internal override bool InvokeOperation(InvokeBinder binder, Args args, out Any result)
{
result = signature(args);
return(true);
}
internal override bool GetIndexOperation(GetIndexBinder binder, Args indices, out Any result)
{
var idx = (int)((Number)indices[0]).Value;
result = values[idx];
return(true);
}
internal override bool SetMemberOperation(SetMemberBinder binder, Any value)
{
members[binder.Name] = value;
return true;
}
internal override bool InvokeOperation(InvokeBinder binder, Args args, out Any result)
{
result = ctor(args);
return true;
}
internal override bool BinaryOperation(BinaryOperationBinder binder, Any arg, out Any result)
{
var number = arg as Number;
if (number != null)
{
switch (binder.Operation)
{
case ExpressionType.Add:
result = new Number(Value + number.Value);
break;
case ExpressionType.Subtract:
result = new Number(Value - number.Value);
break;
case ExpressionType.Multiply:
result = new Number(Value * number.Value);
break;
case ExpressionType.Divide:
result = new Number(Value / number.Value);
break;
case ExpressionType.LessThan:
result = Value < number.Value ? Bool.True : Bool.False;
break;
case ExpressionType.LessThanOrEqual:
result = Value <= number.Value ? Bool.True : Bool.False;
break;
default:
throw new ArgumentOutOfRangeException();
}
return(true);
}
return(base.BinaryOperation(binder, arg, out result));
}
internal virtual bool GetIndexOperation(GetIndexBinder binder, Args indices, out Any result)
{
result = null;
return false;
}
internal override bool GetIndexOperation(GetIndexBinder binder, Args indices, out Any result)
{
var idx = (int)((Number)indices[0]).Value;
result = values[idx];
return true;
}
internal override bool SetMemberOperation(SetMemberBinder binder, Any value)
{
Members[binder.Name] = value;
return(true);
}
internal virtual bool UnaryOperation(UnaryOperationBinder binder, out Any result)
{
result = null;
return false;
}
internal virtual bool SetMemberOperation(SetMemberBinder binder, Any value)
{
return false;
}
internal virtual bool SetIndexOperation(SetIndexBinder binder, Args indices, Any value)
{
return false;
}
internal virtual bool InvokeOperation(InvokeBinder binder, Args args, out Any result)
{
result = null;
return false;
}
internal virtual bool GetMemberOperation(GetMemberBinder binder, out Any result)
{
result = null;
return false;
}