#![cfg_attr(not(feature = "std"), no_std)]
#![cfg_attr(
feature = "std",
doc = "Substrate runtime standard library as compiled when linked with Rust's standard library."
)]
#![cfg_attr(
not(feature = "std"),
doc = "Substrate's runtime standard library as compiled without Rust's standard library."
)]
#[macro_export]
macro_rules! map {
($( $name:expr => $value:expr ),* $(,)? ) => (
vec![ $( ( $name, $value ) ),* ].into_iter().collect()
)
}
#[cfg(feature = "std")]
#[macro_export]
macro_rules! if_std {
( $( $code:tt )* ) => {
$( $code )*
}
}
#[cfg(not(feature = "std"))]
#[macro_export]
macro_rules! if_std {
( $( $code:tt )* ) => {};
}
#[cfg(feature = "std")]
include!("../with_std.rs");
#[cfg(not(feature = "std"))]
include!("../without_std.rs");
#[derive(Default)]
pub struct Writer(vec::Vec<u8>);
impl fmt::Write for Writer {
fn write_str(&mut self, s: &str) -> fmt::Result {
self.0.extend(s.as_bytes());
Ok(())
}
}
impl Writer {
pub fn inner(&self) -> &vec::Vec<u8> {
&self.0
}
pub fn into_inner(self) -> vec::Vec<u8> {
self.0
}
}
pub mod prelude {
pub use crate::{
borrow::ToOwned,
boxed::Box,
clone::Clone,
cmp::{Eq, PartialEq, Reverse},
iter::IntoIterator,
vec::Vec,
};
#[cfg(not(feature = "std"))]
pub use crate::vec;
}