eater/async-std
1
0
Fork 0
forked from mirror/async-std
Code Issues Pull requests Releases Wiki Activity

feat: Make the utils module no_std

Browse source
This commit is contained in:
k-nasa 2020-01-16 10:33:00 +09:00
parent 51b84a7620
commit 3d32fd81f4
1 changed files with 25 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

27
src/utils.rs
View file

@ -1,3 +1,9 @@
#[cfg(feature = "no-std")]
extern crate alloc;
#[cfg(feature = "no-std")]
use alloc::string::String;
/// Calls a function and aborts if it panics.
///
/// This is useful in unsafe code where we can't recover from panics.
@ -104,6 +110,7 @@ macro_rules! cfg_unstable_default {
/// Declares Unix-specific items.
#[doc(hidden)]
#[allow(unused_macros)]
macro_rules! cfg_unix {
($($item:item)*) => {
$(
@ -116,6 +123,7 @@ macro_rules! cfg_unix {
/// Declares Windows-specific items.
#[doc(hidden)]
#[allow(unused_macros)]
macro_rules! cfg_windows {
($($item:item)*) => {
$(
@ -128,6 +136,7 @@ macro_rules! cfg_windows {
/// Declares items when the "docs" feature is enabled.
#[doc(hidden)]
#[allow(unused_macros)]
macro_rules! cfg_docs {
($($item:item)*) => {
$(
@ -139,6 +148,7 @@ macro_rules! cfg_docs {
/// Declares items when the "docs" feature is disabled.
#[doc(hidden)]
#[allow(unused_macros)]
macro_rules! cfg_not_docs {
($($item:item)*) => {
$(
@ -160,6 +170,18 @@ macro_rules! cfg_std {
}
}
/// Declares no-std items.
#[allow(unused_macros)]
#[doc(hidden)]
macro_rules! cfg_no_std {
($($item:item)*) => {
$(
#[cfg(feature = "no-std")]
$item
)*
}
}
/// Declares default items.
#[allow(unused_macros)]
#[doc(hidden)]
@ -180,6 +202,7 @@ macro_rules! cfg_default {
///
/// Inside invocations of this macro, we write a definitions that looks similar to the final
/// rendered docs, and the macro then generates all the boilerplate for us.
#[allow(unused_macros)]
#[doc(hidden)]
macro_rules! extension_trait {
(
@ -204,14 +227,14 @@ macro_rules! extension_trait {
#[allow(dead_code)]
mod owned {
#[doc(hidden)]
pub struct ImplFuture<T>(std::marker::PhantomData<T>);
pub struct ImplFuture<T>(core::marker::PhantomData<T>);
}
// A fake `impl Future` type that borrows its environment.
#[allow(dead_code)]
mod borrowed {
#[doc(hidden)]
pub struct ImplFuture<'a, T>(std::marker::PhantomData<&'a T>);
pub struct ImplFuture<'a, T>(core::marker::PhantomData<&'a T>);
}
// Render a fake trait combining the bodies of the base trait and the extension trait.