frame_support/traits/tokens/fungibles/enumerable.rs
1// This file is part of Substrate.
2
3// Copyright (C) Parity Technologies (UK) Ltd.
4// SPDX-License-Identifier: Apache-2.0
5
6// Licensed under the Apache License, Version 2.0 (the "License");
7// you may not use this file except in compliance with the License.
8// You may obtain a copy of the License at
9//
10// http://www.apache.org/licenses/LICENSE-2.0
11//
12// Unless required by applicable law or agreed to in writing, software
13// distributed under the License is distributed on an "AS IS" BASIS,
14// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15// See the License for the specific language governing permissions and
16// limitations under the License.
17
18//! Contains an interface for enumerating assets in existence or owned by a given account.
19//!
20//! See the [`crate::traits::fungibles`] doc for more information about fungibles traits.
21
22/// Interface for enumerating assets in existence or owned by a given account.
23pub trait Inspect<AccountId>: super::Inspect<AccountId> {
24 type AssetsIterator;
25
26 /// Returns an iterator of the collections in existence.
27 fn asset_ids() -> Self::AssetsIterator;
28}