Trait ForceUnicode

pub trait ForceUnicode {
    type Becomes;

    // Required method
    fn force_unicode(self) -> Result<Self::Becomes, ArgError>;
}

Helper trait for converting ItemOs to Item, Option<ItemOs> to Option<Item>, etc. The result is wrapped in Result<_,ArgError> unless it already is. Mostly for internal use but may occasionally come in handy in application code.

Required Associated Types

type Becomes

The exact type the item is converted to.

Required Methods

fn force_unicode(self) -> Result<Self::Becomes, ArgError>

Change the OsString based value to be String based.

Implementations on Foreign Types

impl ForceUnicode for OsString

type Becomes = String

fn force_unicode(self) -> Result<String, ArgError>

impl<'a> ForceUnicode for &'a OsStr

type Becomes = &'a str

fn force_unicode(self) -> Result<&'a str, ArgError>

impl<T: ForceUnicode> ForceUnicode for Option<T>

type Becomes = Option<<T as ForceUnicode>::Becomes>

fn force_unicode(self) -> Result<Self::Becomes, ArgError>

impl<T: ForceUnicode> ForceUnicode for Result<T, ArgError>

type Becomes = <T as ForceUnicode>::Becomes

As the argument already is a Result<T,ArgError> we do not have add another layer of Result.

fn force_unicode(self) -> Result<Self::Becomes, ArgError>

Implementors

impl<'a> ForceUnicode for ItemOs<'a>

type Becomes = Item<'a>