private static Expression /*!*/ PeekReference(PhpRoutine routine, DynamicMetaObject scriptContext, DynamicMetaObject arg, int argIndex)
{
if (arg != null)
{
// peeks the reference:
return(PeekReferenceUnchecked(routine, scriptContext, arg, argIndex));
}
else
{
return(Expression.Block(
BinderHelper.ThrowMissingArgument(argIndex, routine.FullName),
Expression.New(Constructors.PhpReference_Void)));
}
}
private static Expression /*!*/ PeekValue(PhpRoutine routine, DynamicMetaObject scriptContext, DynamicMetaObject arg, int argIndex)
{
if (arg != null)
{
// peeks the value:
return(PeekValueUnchecked(routine, scriptContext, arg, argIndex));
}
else
{
return(Expression.Block(
BinderHelper.ThrowMissingArgument(argIndex, routine.FullName),
Expression.Constant(null)));
}
}