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Proposal: Defensive trait for infallible frame operations (#10626)

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* add a blueprint of how defensive traits could look like

* add something for arithmetic as well

* add some use cases in different pallets

* some build fixing

* Some new stuff and examples

* Fix deadly bug

* add more doc.

* undo faulty change to assets pallet

* Update frame/support/src/traits/misc.rs

Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* some review comments

* remove draft comment

* Fix ident test

* Fix proxy tests as well

* a few new ideas

* Fix build

* Fix doc

Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
This commit is contained in:
Kian Paimani
2022-01-24 17:18:13 +01:00
committed by GitHub
parent 9daea28085
commit d1ff02d31e
11 changed files with 402 additions and 44 deletions
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substrate/frame/election-provider-support/src/lib.rs
+1 -1
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@@ -343,7 +343,7 @@ impl<AccountId, BlockNumber> ElectionProvider for NoElection<(AccountId, BlockNu
/// used on the implementing side of [`ElectionDataProvider`].
pub trait SortedListProvider<AccountId> {
/// The list's error type.
type Error;
type Error: sp_std::fmt::Debug;
/// An iterator over the list, which can have `take` called on it.
fn iter() -> Box<dyn Iterator<Item = AccountId>>;