Struct ouroboros_examples::DataAndRef

#[repr(transparent)]
pub struct DataAndRef {
    actual_data: MaybeUninit<DataAndRefInternal>,
}

The self-referencing struct.

Fields

actual_data: MaybeUninit<DataAndRefInternal>

Implementations

impl DataAndRef

pub(crate) fn new( data: i32, data_ref_builder: impl for<'this> FnOnce(&'this i32) -> &'this i32 ) -> DataAndRef

Constructs a new instance of this self-referential struct. (See also DataAndRefBuilder::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:

Argument	Suggested Use
data	Directly pass in the value this field should contain
data_ref_builder	Use a function or closure: (data: &_) -> data_ref: _

pub(crate) async fn new_async( data: i32, data_ref_builder: impl for<'this> FnOnce(&'this i32) -> Pin<Box<dyn Future<Output = &'this i32> + 'this>> ) -> DataAndRef

Constructs a new instance of this self-referential struct. (See also DataAndRefAsyncBuilder::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:

Argument	Suggested Use
data	Directly pass in the value this field should contain
data_ref_builder	Use a function or closure: (data: &_) -> data_ref: _

pub(crate) async fn new_async_send( data: i32, data_ref_builder: impl for<'this> FnOnce(&'this i32) -> Pin<Box<dyn Future<Output = &'this i32> + Send + 'this>> ) -> DataAndRef

Constructs a new instance of this self-referential struct. (See also DataAndRefAsyncSendBuilder::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:

Argument	Suggested Use
data	Directly pass in the value this field should contain
data_ref_builder	Use a function or closure: (data: &_) -> data_ref: _

pub(crate) fn try_new<Error_>( data: i32, data_ref_builder: impl for<'this> FnOnce(&'this i32) -> Result<&'this i32, Error_> ) -> Result<DataAndRef, Error_>

(See also DataAndRefTryBuilder::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:

Argument	Suggested Use
data	Directly pass in the value this field should contain
data_ref_builder	Use a function or closure: (data: &_) -> Result<data_ref: _, Error_>

pub(crate) fn try_new_or_recover<Error_>( data: i32, data_ref_builder: impl for<'this> FnOnce(&'this i32) -> Result<&'this i32, Error_> ) -> Result<DataAndRef, (Error_, Heads)>

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

Argument	Suggested Use
data	Directly pass in the value this field should contain
data_ref_builder	Use a function or closure: (data: &_) -> Result<data_ref: _, Error_>

pub(crate) async fn try_new_async<Error_>( data: i32, data_ref_builder: impl for<'this> FnOnce(&'this i32) -> Pin<Box<dyn Future<Output = Result<&'this i32, Error_>> + 'this>> ) -> Result<DataAndRef, Error_>

(See also DataAndRefAsyncTryBuilder::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:

Argument	Suggested Use
data	Directly pass in the value this field should contain
data_ref_builder	Use a function or closure: (data: &_) -> Result<data_ref: _, Error_>

pub(crate) async fn try_new_or_recover_async<Error_>( data: i32, data_ref_builder: impl for<'this> FnOnce(&'this i32) -> Pin<Box<dyn Future<Output = Result<&'this i32, Error_>> + 'this>> ) -> Result<DataAndRef, (Error_, Heads)>

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

Argument	Suggested Use
data	Directly pass in the value this field should contain
data_ref_builder	Use a function or closure: (data: &_) -> Result<data_ref: _, Error_>

pub(crate) async fn try_new_async_send<Error_>( data: i32, data_ref_builder: impl for<'this> FnOnce(&'this i32) -> Pin<Box<dyn Future<Output = Result<&'this i32, Error_>> + Send + 'this>> ) -> Result<DataAndRef, Error_>

(See also DataAndRefAsyncSendTryBuilder::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:

Argument	Suggested Use
data	Directly pass in the value this field should contain
data_ref_builder	Use a function or closure: (data: &_) -> Result<data_ref: _, Error_>

pub(crate) async fn try_new_or_recover_async_send<Error_>( data: i32, data_ref_builder: impl for<'this> FnOnce(&'this i32) -> Pin<Box<dyn Future<Output = Result<&'this i32, Error_>> + Send + 'this>> ) -> Result<DataAndRef, (Error_, Heads)>

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

Argument	Suggested Use
data	Directly pass in the value this field should contain
data_ref_builder	Use a function or closure: (data: &_) -> Result<data_ref: _, Error_>

pub(crate) fn with_data<'outer_borrow, ReturnType>( &'outer_borrow self, user: impl for<'this> FnOnce(&'outer_borrow i32) -> ReturnType ) -> ReturnType

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

pub(crate) fn borrow_data<'this>(&'this self) -> &'this i32

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

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

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

pub(crate) fn borrow_data_ref<'this>(&'this self) -> &'this &'this i32

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

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

Provides a mutable reference to data_ref. This method was generated because data_ref is a tail field. No borrow_data_ref_mut function was generated because Rust’s borrow checker is currently unable to guarantee that such a method would be used safely.

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

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

pub(crate) fn with_mut<'outer_borrow, ReturnType>( &'outer_borrow mut self, user: impl for<'this0, 'this1> FnOnce(BorrowedMutFields<'outer_borrow, 'this1, 'this0>) -> ReturnType ) -> ReturnType

This method provides mutable references to all tail fields.

pub(crate) fn into_heads(self) -> Heads

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

Trait Implementations

impl Drop for DataAndRef

fn drop(&mut self)

Executes the destructor for this type.