fix proc-macro that uses std

Signed-off-by: Jorge Prendes <[email protected]>

Author: jprendes

core/src/context/async.rs

@@ -67,7 +67,7 @@ use future::WithFuture;
 macro_rules! async_with{
     ($context:expr => |$ctx:ident| { $($t:tt)* }) => {
         $crate::AsyncContext::async_with(&$context,|$ctx| {
-            let fut = Box::pin(async move {
+            let fut = $crate::alloc::boxed::Box::pin(async move {
                 $($t)*
             });
             /// SAFETY: While rquickjs objects have a 'js lifetime attached to them,
@@ -81,8 +81,8 @@ macro_rules! async_with{
             /// rquickjs objects are send so the future will never be send.
             /// Since we acquire a lock before running the future and nothing can escape the closure
             /// and future it is safe to recast the future as send.
-            unsafe fn uplift<'a,'b,R>(f: std::pin::Pin<Box<dyn std::future::Future<Output = R> + 'a>>) -> std::pin::Pin<Box<dyn std::future::Future<Output = R> + 'b + Send>>{
-                std::mem::transmute(f)
+            unsafe fn uplift<'a,'b,R>(f: core::pin::Pin<$crate::alloc::boxed::Box<dyn core::future::Future<Output = R> + 'a>>) -> core::pin::Pin<$crate::alloc::boxed::Box<dyn core::future::Future<Output = R> + 'b + Send>>{
+                core::mem::transmute(f)
             }
             unsafe{ uplift(fut) }
         })

core/src/lib.rs

@@ -7,7 +7,8 @@
 #![cfg_attr(feature = "doc-cfg", feature(doc_cfg))]
 #![cfg_attr(not(test), no_std)]
 
-extern crate alloc;
+#[doc(hidden)]
+pub extern crate alloc;
 
 #[cfg(any(feature = "std", test))]
 extern crate std;

src/lib.rs

@@ -116,7 +116,7 @@
 //! - `dump-read-object`
 
 #![cfg_attr(feature = "doc-cfg", feature(doc_cfg))]
-#![no_std]
+#![cfg_attr(not(test), no_std)]
 
 pub use rquickjs_core::*;