public static T ChangeOperands <T>(this T expression, IList <Expression> operands, IEnumerable <Expression> oldOperands = null)
where T : Expression
{
if (!HaveOperandsChanged(operands, oldOperands))
{
return(expression);
}
var mutableExpression = expression as IMutableExpression;
if (mutableExpression != null)
{
return((T)mutableExpression.Mutate(operands));
}
// RI: new version
var result = (T)ExpressionMutator.Mutate(expression, operands);
return(result);
// return (T)ExpressionMutatorFactory.GetMutator(expression).Mutate(operands);
}
/// <summary>
/// Enumerates all subexpressions related to this one
/// </summary>
/// <param name="expression"></param>
/// <returns></returns>
public static IList <Expression> GetOperands(this Expression expression)
{
var result = ExpressionMutator.GetOperands(expression);
return(result);
}