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Merged
xlc merged 1 commit into from
Apr 1, 2021
Merged

add Handler #431

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17 changes: 15 additions & 2 deletions traits/src/lib.rs
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Original file line number Diff line number Diff line change
@@ -1,7 +1,8 @@
#![cfg_attr(not(feature = "std"), no_std)]

use codec::{Decode, Encode};
use sp_runtime::RuntimeDebug;
use impl_trait_for_tuples::impl_for_tuples;
use sp_runtime::{DispatchResult, RuntimeDebug};
use sp_std::{
cmp::{Eq, PartialEq},
prelude::Vec,
Expand Down Expand Up @@ -64,11 +65,23 @@ pub struct TimestampedValue<Value: Ord + PartialOrd, Moment> {
pub timestamp: Moment,
}

#[impl_trait_for_tuples::impl_for_tuples(30)]
#[impl_for_tuples(30)]
pub trait Happened<T> {
fn happened(t: &T);
}

pub trait Handler<T> {
fn handle(t: &T) -> DispatchResult;
}

#[impl_for_tuples(30)]
impl<T> Handler<T> for Tuple {
fn handle(t: &T) -> DispatchResult {
for_tuples!( #( Tuple::handle(t); )* );
Ok(())
}
}

pub trait Contains<T> {
fn contains(t: &T) -> bool;
}