public static CallScope Create(string parm)
{
CallScope callScope = new CallScope(new EmptyScope());
callScope.PushBack(NValue.StringValue(parm));
return(callScope);
}
public Value Handler(CallScope args)
{
if (WantsArg)
{
if (args.Size < 2)
{
throw new InvalidOperationException(String.Format("No argument provided for {0}", Desc));
}
if (args.Size > 2)
{
throw new InvalidOperationException(String.Format("To many arguments provided for {0}", Desc));
}
if (args[0].Type != ValueTypeEnum.String)
{
throw new InvalidOperationException(String.Format("Context argument for {0} not a string", Desc));
}
On(args[0].AsString, args[1].AsString);
}
else
{
if (args.Size < 1)
{
throw new InvalidOperationException(String.Format("No argument provided for {0}", Desc));
}
if (args[0].Type != ValueTypeEnum.String)
{
throw new InvalidOperationException(String.Format("Context argument for {0} not a string", Desc));
}
On(args[0].AsString);
}
return(NValue.Get(true));
}
/// <summary>
/// Ported from void process_option(const string& whence, const expr_t::func_t& opt,
/// </summary>
public static void ProcessOption(string whence, ExprFunc opt, Scope scope, string arg, string name)
{
try
{
CallScope args = new CallScope(scope);
args.PushBack(NValue.Get(whence));
if (!String.IsNullOrEmpty(arg))
{
args.PushBack(NValue.Get(arg));
}
opt(args);
}
catch (CountError)
{
throw; // DM - error_count is not std::exception and may pass by "catch" block
}
catch (Exception)
{
if (!String.IsNullOrEmpty(name) && name.StartsWith("-"))
{
throw new Exception(String.Format("While parsing option '{0}'", name));
}
else
{
throw new Exception(String.Format("While parsing environent variable '{0}'", name));
}
}
}
public static void ProcessOption(string whence, ExprFunc opt, Scope scope, string arg, string name)
{
try
{
CallScope args = new CallScope(scope);
args.PushBack(NValue.Get(whence));
if (!String.IsNullOrEmpty(arg))
{
args.PushBack(NValue.Get(arg));
}
opt(args);
}
catch
{
if (!String.IsNullOrEmpty(name) && name.StartsWith("-"))
{
throw new Exception(String.Format("While parsing option '{0}'", name));
}
else
{
throw new Exception(String.Format("While parsing environent variable '{0}'", name));
}
}
}
public bool Has <T>(int index)
{
if (index < Size)
{
Resolve(index, NValue.GetValueType <T>(), false);
return(!NValue.IsNullOrEmpty(ArgsList[index]));
}
return(false);
}
// operator()
public Value Call(CallScope args)
{
if (!args.IsEmpty)
{
args.PushFront(NValue.StringValue("?expr"));
return(Handler(args));
}
if (WantsArg)
{
return(NValue.StringValue(Value));
}
else
{
return(NValue.Get(Handled));
}
}
public T Get <T>(int index, bool convert = true)
{
// DM - this method was completely rewritten to handle conversion to the expected type
// #remove-boxing - Consider removing excess boxing in this method.
if (typeof(T) == typeof(int))
{
convert = true; // see - inline int call_scope_t::get<int>(std::size_t index, bool) {
}
if (typeof(T) == typeof(ExprOp))
{
return((T)(object)Args.AsSequence[index].AsAny <ExprOp>()); // see - call_scope_t::get<expr_t::ptr_op_t>(std::size_t index, bool)
}
ValueTypeEnum valType = NValue.GetValueType <T>();
Value val = Resolve(index, NValue.GetValueType <T>(), !convert);
switch (valType)
{
case ValueTypeEnum.Amount: return((T)(object)val.AsAmount);
case ValueTypeEnum.Any: return(val.AsAny <T>());
case ValueTypeEnum.Balance: return((T)(object)val.AsBalance);
case ValueTypeEnum.Boolean: return((T)(object)val.AsBoolean);
case ValueTypeEnum.Date: return((T)(object)val.AsDate);
case ValueTypeEnum.DateTime: return((T)(object)val.AsDateTime);
case ValueTypeEnum.Integer: return((T)Convert.ChangeType(val.AsLong, typeof(T)));
case ValueTypeEnum.Mask: return((T)(object)val.AsMask);
case ValueTypeEnum.Scope: return((T)(object)val.AsScope);
case ValueTypeEnum.Sequence: return((T)(object)val.AsSequence);
case ValueTypeEnum.String: return((T)(object)val.AsString);
case ValueTypeEnum.Void: return(default(T));
default: return(default(T));
}
}
public bool Has(int index)
{
return(index < Size && !(NValue.IsNullOrEmpty(ArgsList[index])));
}
