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_root_url = "https://doc.rust-lang.org/nightly/")]
11 #![feature(in_band_lifetimes)]
12 #![feature(unboxed_closures)]
13 #![feature(fn_traits)]
15 #![feature(specialization)]
16 #![feature(optin_builtin_traits)]
18 #![feature(allow_internal_unstable)]
19 #![feature(hash_raw_entry)]
20 #![feature(stmt_expr_attributes)]
21 #![feature(core_intrinsics)]
22 #![feature(integer_atomics)]
24 #![cfg_attr(unix, feature(libc))]
25 #![cfg_attr(test, feature(test))]
31 extern crate serialize as rustc_serialize; // used by deriving
34 extern crate parking_lot;
37 extern crate stable_deref_trait;
38 extern crate rustc_rayon as rayon;
39 extern crate rustc_rayon_core as rayon_core;
40 extern crate rustc_hash;
41 extern crate serialize;
42 extern crate graphviz;
43 extern crate smallvec;
45 // See librustc_cratesio_shim/Cargo.toml for a comment explaining this.
46 #[allow(unused_extern_crates)]
47 extern crate rustc_cratesio_shim;
49 pub use rustc_serialize::hex::ToHex;
54 #[allow(unused_unsafe)]
56 unsafe { std::intrinsics::likely($e) }
62 macro_rules! unlikely {
64 #[allow(unused_unsafe)]
66 unsafe { std::intrinsics::unlikely($e) }
81 pub mod obligation_forest;
87 pub use ena::snapshot_vec;
89 #[macro_use] pub mod stable_hasher;
93 pub mod transitive_relation;
95 pub mod vec_linked_list;
99 pub struct OnDrop<F: Fn()>(pub F);
101 impl<F: Fn()> OnDrop<F> {
102 /// Forgets the function which prevents it from running.
103 /// Ensure that the function owns no memory, otherwise it will be leaked.
105 pub fn disable(self) {
106 std::mem::forget(self);
110 impl<F: Fn()> Drop for OnDrop<F> {
117 // See comments in src/librustc/lib.rs
119 pub fn __noop_fix_for_27438() {}