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use super::engine_error;
use crate::specification::engines::AbstractEngine;
use crate::specification::entities::PlaintextEntity;
engine_error! {
PlaintextDiscardingConversionError for PlaintextDiscardingConversionEngine @
}
/// A trait for engines converting (discarding) plaintexts .
///
/// # Semantics
///
/// This [discarding](super#operation-semantics) operation fills the `output` plaintext with the
/// conversion of the `input` plaintext to a type with a different representation (for instance from
/// cpu to gpu memory).
///
/// # Formal Definition
pub trait PlaintextDiscardingConversionEngine<Input, Output>: AbstractEngine
where
Input: PlaintextEntity,
Output: PlaintextEntity,
{
/// Converts a plaintext .
fn discard_convert_plaintext(
&mut self,
output: &mut Output,
input: &Input,
) -> Result<(), PlaintextDiscardingConversionError<Self::EngineError>>;
/// Unsafely converts a plaintext .
///
/// # Safety
/// For the _general_ safety concerns regarding this operation, refer to the different variants
/// of [`PlaintextDiscardingConversionError`]. For safety concerns _specific_ to an engine,
/// refer to the implementer safety section.
unsafe fn discard_convert_plaintext_unchecked(&mut self, output: &mut Output, input: &Input);
}