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clarify lib.rs attribute structure

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This commit is contained in:
Ralf Jung 2022-08-18 18:07:35 -04:00
parent 438e49c1cb
commit fbcdf2a383
2 changed files with 17 additions and 15 deletions
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9
library/alloc/src/lib.rs
View file

@ -56,11 +56,6 @@
//! [`Rc`]: rc
//! [`RefCell`]: core::cell
// To run liballoc tests without x.py without ending up with two copies of liballoc, Miri needs to be
// able to "empty" this crate. See <https://github.com/rust-lang/miri-test-libstd/issues/4>.
// rustc itself never sets the feature, so this line has no affect there.
#![cfg(any(not(feature = "miri-test-libstd"), test, doctest))]
//
#![allow(unused_attributes)]
#![stable(feature = "alloc", since = "1.36.0")]
#![doc(
@ -78,6 +73,10 @@
))]
#![no_std]
#![needs_allocator]
// To run liballoc tests without x.py without ending up with two copies of liballoc, Miri needs to be
// able to "empty" this crate. See <https://github.com/rust-lang/miri-test-libstd/issues/4>.
// rustc itself never sets the feature, so this line has no affect there.
#![cfg(any(not(feature = "miri-test-libstd"), test, doctest))]
//
// Lints:
#![deny(unsafe_op_in_unsafe_fn)]

23
library/std/src/lib.rs
View file

@ -188,13 +188,6 @@
//! [array]: prim@array
//! [slice]: prim@slice
// To run libstd tests without x.py without ending up with two copies of libstd, Miri needs to be
// able to "empty" this crate. See <https://github.com/rust-lang/miri-test-libstd/issues/4>.
// rustc itself never sets the feature, so this line has no affect there.
#![cfg(any(not(feature = "miri-test-libstd"), test, doctest))]
// miri-test-libstd also prefers to make std use the sysroot versions of the dependencies.
#![cfg_attr(feature = "miri-test-libstd", feature(rustc_private))]
//
#![cfg_attr(not(feature = "restricted-std"), stable(feature = "rust1", since = "1.0.0"))]
#![cfg_attr(feature = "restricted-std", unstable(feature = "restricted_std", issue = "none"))]
#![doc(
@ -209,25 +202,35 @@
no_global_oom_handling,
not(no_global_oom_handling)
))]
// To run libstd tests without x.py without ending up with two copies of libstd, Miri needs to be
// able to "empty" this crate. See <https://github.com/rust-lang/miri-test-libstd/issues/4>.
// rustc itself never sets the feature, so this line has no affect there.
#![cfg(any(not(feature = "miri-test-libstd"), test, doctest))]
// miri-test-libstd also prefers to make std use the sysroot versions of the dependencies.
#![cfg_attr(feature = "miri-test-libstd", feature(rustc_private))]
// Don't link to std. We are std.
#![no_std]
// Tell the compiler to link to either panic_abort or panic_unwind
#![needs_panic_runtime]
//
// Lints:
#![warn(deprecated_in_future)]
#![warn(missing_docs)]
#![warn(missing_debug_implementations)]
#![allow(explicit_outlives_requirements)]
#![allow(unused_lifetimes)]
// Tell the compiler to link to either panic_abort or panic_unwind
#![needs_panic_runtime]
#![deny(rustc::existing_doc_keyword)]
// Ensure that std can be linked against panic_abort despite compiled with `-C panic=unwind`
#![deny(ffi_unwind_calls)]
// std may use features in a platform-specific way
#![allow(unused_features)]
//
// Features:
#![cfg_attr(test, feature(internal_output_capture, print_internals, update_panic_count, rt))]
#![cfg_attr(
all(target_vendor = "fortanix", target_env = "sgx"),
feature(slice_index_methods, coerce_unsized, sgx_platform)
)]
#![deny(rustc::existing_doc_keyword)]
//
// Language features:
#![feature(alloc_error_handler)]