diff options
Diffstat (limited to 'library/alloc/src/bstr.rs')
| -rw-r--r-- | library/alloc/src/bstr.rs | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/library/alloc/src/bstr.rs b/library/alloc/src/bstr.rs index a447ab38d17..f16a36b0f9b 100644 --- a/library/alloc/src/bstr.rs +++ b/library/alloc/src/bstr.rs @@ -1,5 +1,8 @@ //! The `ByteStr` and `ByteString` types and trait implementations. +// This could be more fine-grained. +#![cfg(not(no_global_oom_handling))] + use core::borrow::{Borrow, BorrowMut}; #[unstable(feature = "bstr", issue = "134915")] pub use core::bstr::ByteStr; @@ -17,8 +20,10 @@ use core::{fmt, hash}; use crate::borrow::{Cow, ToOwned}; #[cfg(not(test))] // https://github.com/rust-lang/rust/issues/135100 use crate::boxed::Box; +#[cfg(not(no_rc))] use crate::rc::Rc; use crate::string::String; +#[cfg(all(not(no_rc), not(no_sync), target_has_atomic = "ptr"))] use crate::sync::Arc; use crate::vec::Vec; @@ -649,6 +654,7 @@ impl From<Box<ByteStr>> for Box<[u8]> { } #[unstable(feature = "bstr", issue = "134915")] +#[cfg(not(no_rc))] impl From<Rc<[u8]>> for Rc<ByteStr> { #[inline] fn from(s: Rc<[u8]>) -> Rc<ByteStr> { @@ -658,6 +664,7 @@ impl From<Rc<[u8]>> for Rc<ByteStr> { } #[unstable(feature = "bstr", issue = "134915")] +#[cfg(not(no_rc))] impl From<Rc<ByteStr>> for Rc<[u8]> { #[inline] fn from(s: Rc<ByteStr>) -> Rc<[u8]> { @@ -667,6 +674,7 @@ impl From<Rc<ByteStr>> for Rc<[u8]> { } #[unstable(feature = "bstr", issue = "134915")] +#[cfg(all(not(no_rc), not(no_sync), target_has_atomic = "ptr"))] impl From<Arc<[u8]>> for Arc<ByteStr> { #[inline] fn from(s: Arc<[u8]>) -> Arc<ByteStr> { @@ -676,6 +684,7 @@ impl From<Arc<[u8]>> for Arc<ByteStr> { } #[unstable(feature = "bstr", issue = "134915")] +#[cfg(all(not(no_rc), not(no_sync), target_has_atomic = "ptr"))] impl From<Arc<ByteStr>> for Arc<[u8]> { #[inline] fn from(s: Arc<ByteStr>) -> Arc<[u8]> { |