Enum EfficientOptionInner

pub enum EfficientOptionInner<'a, A, B: 'a, TM: 'a = TagMSB>
where
    A: TaggableValue<TM, One> + 'a,
{
    IsNone(EfficientOptionInnerNone<'a, A, B, TM>),
    IsSome(EfficientOptionInnerSome<'a, A, B, TM>),
}

A helper type for EfficientOption, gives access to EfficientOptionInnerNone and EfficientOptionInnerSome variants.

Variants

IsNone(EfficientOptionInnerNone<'a, A, B, TM>)

IsSome(EfficientOptionInnerSome<'a, A, B, TM>)

Implementations

impl<'a, TM, A, B> EfficientOptionInner<'a, A, B, TM>

where A: TaggableValue<TM, One>,

pub fn expect_some(self, msg: &str) -> EfficientOptionInnerSome<'a, A, B, TM>

Unwraps an option, yielding the content of a IsSome.

Panics

Panics if the value is a IsNone with a custom panic message provided by msg.

pub fn expect_none(self, msg: &str) -> EfficientOptionInnerNone<'a, A, B, TM>

Unwraps an option, yielding the content of a IsNone.

Panics

Panics if the value is a IsSome with a custom panic message provided by msg.

pub fn unwrap_some(self) -> EfficientOptionInnerSome<'a, A, B, TM>

Moves the value v out if it is IsSome(v).

In general, because this function may panic, its use is discouraged. Instead, prefer to use pattern matching and handle the IsNone case explicitly.

Panics

Panics if the self value equals IsNone.

pub fn unwrap_none(self) -> EfficientOptionInnerNone<'a, A, B, TM>

Moves the value v out if it is IsNone(v).

In general, because this function may panic, its use is discouraged. Instead, prefer to use pattern matching and handle the IsSome case explicitly.

Panics

Panics if the self value equals IsSome.

pub fn unwrap_some_or( self, default: EfficientOptionInnerSome<'a, A, B, TM>, ) -> EfficientOptionInnerSome<'a, A, B, TM>

Returns the contained IsSome value or a default.

pub fn unwrap_none_or( self, default: EfficientOptionInnerNone<'a, A, B, TM>, ) -> EfficientOptionInnerNone<'a, A, B, TM>

Returns the contained IsNone value or a default.

pub fn unwrap_some_or_else<F>( self, f: F, ) -> EfficientOptionInnerSome<'a, A, B, TM>

where F: FnOnce(EfficientOptionInnerNone<'a, A, B, TM>) -> EfficientOptionInnerSome<'a, A, B, TM>,

Returns the contained IsSome value or computes it from a closure.

pub fn unwrap_none_or_else<F>( self, f: F, ) -> EfficientOptionInnerNone<'a, A, B, TM>

where F: FnOnce(EfficientOptionInnerSome<'a, A, B, TM>) -> EfficientOptionInnerNone<'a, A, B, TM>,

Returns the contained IsNone value or computes it from a closure.

pub fn map_some_or<U, F>(self, default: U, f: F) -> U

where F: FnOnce(EfficientOptionInnerSome<'a, A, B, TM>) -> U,

Applies a function to the contained IsSome value or returns a default.

pub fn map_none_or<U, F>(self, default: U, f: F) -> U

where F: FnOnce(EfficientOptionInnerNone<'a, A, B, TM>) -> U,

Applies a function to the contained IsNone value or returns a default.

pub fn map<U, D, F>(self, default: D, f: F) -> U

where D: FnOnce(EfficientOptionInnerNone<'a, A, B, TM>) -> U, F: FnOnce(EfficientOptionInnerSome<'a, A, B, TM>) -> U,

Applies a function to the contained IsSome value or computes a default from the IsNone.