Created
April 25, 2024 03:03
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AssociatedTypes In Rust
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use std::collections::BTreeMap; | |
use std::fmt::Debug; | |
use std::cmp::PartialOrd; | |
use crate::internal_types::AI; | |
trait Conversion: Debug + Clone { | |
type WitType: Clone + Debug; | |
fn from_wit_type(input: Self::WitType) -> Result<Self, String>; | |
fn to_wit_type(&self) -> Result<Self::WitType, String>; | |
} | |
impl Conversion for AI { | |
type WitType = wit_types::A; | |
fn from_wit_type(input: Self::WitType) -> Result<Self, String> { | |
dbg!("Converting from wit type {}", input); | |
Ok(AI) | |
} | |
fn to_wit_type(&self) -> Result<Self::WitType, String> { | |
dbg!("Converting to wit type {}", self); | |
Ok(wit_types::A) | |
} | |
} | |
fn main() { | |
use Conversion; | |
let external_type: wit_types::A = wit_types::A; | |
let internal_type: internal_types::AI = internal_types::AI::from_wit_type(external_type).unwrap(); | |
let external_type0 = internal_type.to_wit_type().unwrap(); | |
dbg!(external_type0); | |
} | |
mod internal_types { | |
use super::*; | |
#[derive(Debug, Clone)] | |
pub(crate) struct AI; | |
struct BI; | |
struct CI; | |
} | |
mod wit_types { | |
#[derive(Clone, Debug)] | |
pub(crate) struct A; | |
pub(crate) struct B; | |
pub(crate) struct C; | |
} |
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