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.
7 //! This API is completely unstable and subject to change.
9 #![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png",
10 html_favicon_url = "https://www.rust-lang.org/favicon.ico",
11 html_root_url = "https://doc.rust-lang.org/nightly/")]
13 #![feature(in_band_lifetimes)]
14 #![feature(unboxed_closures)]
15 #![feature(fn_traits)]
17 #![feature(specialization)]
18 #![feature(optin_builtin_traits)]
20 #![feature(allow_internal_unstable)]
21 #![feature(hash_raw_entry)]
22 #![feature(stmt_expr_attributes)]
23 #![feature(core_intrinsics)]
24 #![feature(integer_atomics)]
26 #![cfg_attr(unix, feature(libc))]
27 #![cfg_attr(test, feature(test))]
33 extern crate serialize as rustc_serialize; // used by deriving
36 extern crate parking_lot;
39 extern crate stable_deref_trait;
40 extern crate rustc_rayon as rayon;
41 extern crate rustc_rayon_core as rayon_core;
42 extern crate rustc_hash;
43 extern crate serialize;
44 extern crate graphviz;
45 extern crate smallvec;
47 // See librustc_cratesio_shim/Cargo.toml for a comment explaining this.
48 #[allow(unused_extern_crates)]
49 extern crate rustc_cratesio_shim;
51 pub use rustc_serialize::hex::ToHex;
56 #[allow(unused_unsafe)]
58 unsafe { std::intrinsics::likely($e) }
64 macro_rules! unlikely {
66 #[allow(unused_unsafe)]
68 unsafe { std::intrinsics::unlikely($e) }
83 pub mod obligation_forest;
89 pub use ena::snapshot_vec;
91 #[macro_use] pub mod stable_hasher;
95 pub mod transitive_relation;
97 pub mod vec_linked_list;
101 pub struct OnDrop<F: Fn()>(pub F);
103 impl<F: Fn()> OnDrop<F> {
104 /// Forgets the function which prevents it from running.
105 /// Ensure that the function owns no memory, otherwise it will be leaked.
107 pub fn disable(self) {
108 std::mem::forget(self);
112 impl<F: Fn()> Drop for OnDrop<F> {
119 // See comments in src/librustc/lib.rs
121 pub fn __noop_fix_for_27438() {}