pub trait CleartextDiscardingRetrievalEngine<Cleartext, Value>: AbstractEnginewhere
    Cleartext: CleartextEntity,
{ fn discard_retrieve_cleartext(
        &mut self,
        value: &mut Value,
        input: &Cleartext
    ) -> Result<(), CleartextDiscardingRetrievalError<Self::EngineError>>; unsafe fn discard_retrieve_cleartext_unchecked(
        &mut self,
        value: &mut Value,
        input: &Cleartext
    ); }
Expand description

A trait for engines retrieving (discarding) arbitrary values from cleartexts .

Semantics

This discarding operation fills the value arbitrary value with the retrieval of the input cleartext. By arbitrary here, we mean that Value can be any type that suits the backend implementor (an integer, a struct wrapping integers, a struct wrapping foreign data or any other thing).

Formal Definition

Required Methods

Retrieves an arbitrary value from a cleartext.

Unsafely retrieves an arbitrary value from a cleartext.

Safety

For the general safety concerns regarding this operation, refer to the different variants of CleartextDiscardingRetrievalError. For safety concerns specific to an engine, refer to the implementer safety section.

Implementors