types.rs

// Copyright (C) Use Ink (UK) Ltd.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

//! Types for the default environment.
//!
//! These are simple mirrored types from the default substrate FRAME configuration.
//! Their interfaces and functionality might not be complete.
//!
//! Users are required to provide their own type definitions and `Environment`
//! implementations in order to write ink! contracts for other chain configurations.
//!
//! # Note
//!
//! When authoring a contract, the concrete `Environment` are available via aliases
//! generated by the `lang` macro. Therefore all functionality of the concrete
//! types is accessible in the contract, not constrained by the required trait
//! bounds.
//!
//! Outside the contract and its tests (e.g. in the off-chain environment), where
//! there is no knowledge of the concrete types, the functionality is restricted to
//! the trait bounds on the `Environment` trait types.

use super::arithmetic::AtLeast32BitUnsigned;
use ink_primitives::{
    AccountId,
    Clear,
    Hash,
    H160,
    U256,
};
use scale::{
    Decode,
    Encode,
    MaxEncodedLen,
};
#[cfg(feature = "std")]
use scale_info::TypeInfo;

// todo remove file, move comment above