[][src]Struct ouroboros_examples::BoxAndRef

pub struct BoxAndRef { /* fields omitted */ }

A simple struct which contains a Box<i32> and a &'this i32.

Implementations

impl BoxAndRef[src]

pub fn new(
    data: Box<i32>,
    data_ref_builder: impl for<'this> FnOnce(&'this <Box<i32> as Deref>::Target) -> &'this i32
) -> Self
[src]

Constructs a new instance of this self-referential struct. (See also BoxAndRefBuilder::build()). Each argument is a field of the new struct. Fields that refer to other fields inside the struct are initialized using functions instead of directly passing their value. The arguments are as follows:

ArgumentSuggested Use
dataDirectly pass in the value this field should contain
data_ref_builderUse a function or closure: (data: &_) -> data_ref: _

pub fn try_new<Error_>(
    data: Box<i32>,
    data_ref_builder: impl for<'this> FnOnce(&'this <Box<i32> as Deref>::Target) -> Result<&'this i32, Error_>
) -> Result<Self, Error_>
[src]

(See also BoxAndRefTryBuilder::try_build().) Like new, but builders for self-referencing fields can return results. If any of them fail, Err is returned. If all of them succeed, Ok is returned. The arguments are as follows:

ArgumentSuggested Use
dataDirectly pass in the value this field should contain
data_ref_builderUse a function or closure: (data: &_) -> Result<data_ref: _, Error_>

pub fn try_new_or_recover<Error_>(
    data: Box<i32>,
    data_ref_builder: impl for<'this> FnOnce(&'this <Box<i32> as Deref>::Target) -> Result<&'this i32, Error_>
) -> Result<Self, (Error_, Heads)>
[src]

(See also BoxAndRefTryBuilder::try_build_or_recover().) Like try_new, but all head fields are returned in the case of an error. The arguments are as follows:

ArgumentSuggested Use
dataDirectly pass in the value this field should contain
data_ref_builderUse a function or closure: (data: &_) -> Result<data_ref: _, Error_>

pub fn with_data_contents<'outer_borrow, ReturnType>(
    &'outer_borrow self,
    user: impl for<'this> FnOnce(&'outer_borrow <Box<i32> as Deref>::Target) -> ReturnType
) -> ReturnType
[src]

Provides limited immutable access to the contents of data. This method was generated because data is immutably borrowed by other fields.

pub fn with_data_ref<'outer_borrow, ReturnType>(
    &'outer_borrow self,
    user: impl for<'this> FnOnce(&'outer_borrow &'this i32) -> ReturnType
) -> ReturnType
[src]

Provides an immutable reference to data_ref. This method was generated because data_ref is a tail field.

pub fn with_data_ref_mut<'outer_borrow, ReturnType>(
    &'outer_borrow mut self,
    user: impl for<'this> FnOnce(&'outer_borrow mut &'this i32) -> ReturnType
) -> ReturnType
[src]

Provides a mutable reference to data_ref. This method was generated because data_ref is a tail field.

pub fn with<'outer_borrow, ReturnType>(
    &'outer_borrow self,
    user: impl for<'this> FnOnce(BorrowedFields<'outer_borrow, 'this>) -> ReturnType
) -> ReturnType
[src]

This method provides immutable references to all tail and immutably borrowed fields.

pub fn with_mut<'outer_borrow, ReturnType>(
    &'outer_borrow mut self,
    user: impl for<'this> FnOnce(BorrowedMutFields<'outer_borrow, 'this>) -> ReturnType
) -> ReturnType
[src]

This method provides mutable references to all tail fields.

pub fn into_heads(self) -> Heads[src]

This function drops all internally referencing fields and returns only the head fields of this struct.

Auto Trait Implementations

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
[src]

impl<T> Borrow<T> for T where
    T: ?Sized
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impl<T> BorrowMut<T> for T where
    T: ?Sized
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impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.