scale_info/prelude.rs
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// Copyright 2019-2022 Parity Technologies (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.
//! Exports from `std`, `core` and `alloc` crates.
//!
//! Guarantees a stable interface between `std` and `no_std` modes.
#[cfg(not(feature = "std"))]
extern crate alloc;
use cfg_if::cfg_if;
cfg_if! {
if #[cfg(feature = "std")] {
pub use std::{
any,
borrow,
boxed,
cmp,
collections,
fmt,
format,
hash,
marker,
mem,
num,
ops,
string,
sync,
time,
vec,
rc,
iter,
};
} else {
pub use alloc::{
borrow,
boxed,
collections,
format,
string,
sync,
vec,
rc
};
pub use core::{
any,
cmp,
fmt,
hash,
marker,
mem,
num,
ops,
time,
iter,
};
}
}