src/librustc_data_structures/lib.rs

   1 //! Various data structures used by the Rust compiler. The intention
   2 //! is that code in here should be not be *specific* to rustc, so that
   3 //! it can be easily unit tested and so forth.
   4 //!
   5 //! # Note
   6 //!
   7 //! This API is completely unstable and subject to change.
   8
   9 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/")]
  10 #![feature(in_band_lifetimes)]
  11 #![feature(unboxed_closures)]
  12 #![feature(generators)]
  13 #![feature(generator_trait)]
  14 #![feature(fn_traits)]
  15 #![feature(specialization)]
  16 #![feature(optin_builtin_traits)]
  17 #![feature(nll)]
  18 #![feature(allow_internal_unstable)]
  19 #![feature(hash_raw_entry)]
  20 #![feature(stmt_expr_attributes)]
  21 #![feature(core_intrinsics)]
  22 #![feature(test)]
  23 #![feature(associated_type_bounds)]
  24 #![feature(thread_id_value)]
  25 #![allow(rustc::default_hash_types)]
  26
  27 #[macro_use]
  28 extern crate log;
  29 #[macro_use]
  30 extern crate cfg_if;
  31
  32 pub use rustc_serialize::hex::ToHex;
  33
  34 #[inline(never)]
  35 #[cold]
  36 pub fn cold_path<F: FnOnce() -> R, R>(f: F) -> R {
  37     f()
  38 }
  39
  40 #[macro_export]
  41 macro_rules! likely {
  42     ($e:expr) => {
  43         #[allow(unused_unsafe)]
  44         {
  45             unsafe { std::intrinsics::likely($e) }
  46         }
  47     };
  48 }
  49
  50 #[macro_export]
  51 macro_rules! unlikely {
  52     ($e:expr) => {
  53         #[allow(unused_unsafe)]
  54         {
  55             unsafe { std::intrinsics::unlikely($e) }
  56         }
  57     };
  58 }
  59
  60 pub mod base_n;
  61 pub mod binary_search_util;
  62 pub mod box_region;
  63 pub mod captures;
  64 pub mod const_cstr;
  65 pub mod flock;
  66 pub mod fx;
  67 pub mod graph;
  68 pub mod jobserver;
  69 pub mod macros;
  70 pub mod map_in_place;
  71 pub mod obligation_forest;
  72 pub mod owning_ref;
  73 pub mod ptr_key;
  74 pub mod sip128;
  75 pub mod small_c_str;
  76 pub mod snapshot_map;
  77 pub mod stable_map;
  78 pub mod svh;
  79 pub use ena::snapshot_vec;
  80 pub mod sorted_map;
  81 pub mod stable_set;
  82 #[macro_use]
  83 pub mod stable_hasher;
  84 pub mod sharded;
  85 pub mod sync;
  86 pub mod thin_vec;
  87 pub mod tiny_list;
  88 pub mod transitive_relation;
  89 pub use ena::unify;
  90 mod atomic_ref;
  91 pub mod fingerprint;
  92 pub mod profiling;
  93 pub mod vec_linked_list;
  94 pub mod work_queue;
  95 pub use atomic_ref::AtomicRef;
  96 pub mod frozen;
  97
  98 pub struct OnDrop<F: Fn()>(pub F);
  99
 100 impl<F: Fn()> OnDrop<F> {
 101     /// Forgets the function which prevents it from running.
 102     /// Ensure that the function owns no memory, otherwise it will be leaked.
 103     #[inline]
 104     pub fn disable(self) {
 105         std::mem::forget(self);
 106     }
 107 }
 108
 109 impl<F: Fn()> Drop for OnDrop<F> {
 110     #[inline]
 111     fn drop(&mut self) {
 112         (self.0)();
 113     }
 114 }
 115
 116 // See comments in src/librustc_middle/lib.rs
 117 #[doc(hidden)]
 118 pub fn __noop_fix_for_27438() {}