3 Rust MIR: a lowered representation of Rust.
7 #![feature(assert_matches)]
8 #![feature(bool_to_option)]
9 #![feature(box_patterns)]
10 #![feature(control_flow_enum)]
11 #![feature(crate_visibility_modifier)]
12 #![feature(decl_macro)]
13 #![feature(exact_size_is_empty)]
15 #![feature(map_try_insert)]
16 #![feature(min_specialization)]
17 #![feature(slice_ptr_get)]
18 #![feature(option_get_or_insert_default)]
19 #![feature(never_type)]
20 #![feature(trait_alias)]
21 #![feature(trusted_len)]
22 #![feature(trusted_step)]
23 #![feature(try_blocks)]
24 #![recursion_limit = "256"]
25 #![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
30 extern crate rustc_middle;
37 use rustc_middle::ty::query::Providers;
39 pub fn provide(providers: &mut Providers) {
40 const_eval::provide(providers);
41 providers.eval_to_const_value_raw = const_eval::eval_to_const_value_raw_provider;
42 providers.eval_to_allocation_raw = const_eval::eval_to_allocation_raw_provider;
43 providers.const_caller_location = const_eval::const_caller_location;
44 providers.try_destructure_const = |tcx, param_env_and_value| {
45 let (param_env, value) = param_env_and_value.into_parts();
46 const_eval::try_destructure_const(tcx, param_env, value).ok()
48 providers.const_to_valtree = |tcx, param_env_and_value| {
49 let (param_env, raw) = param_env_and_value.into_parts();
50 const_eval::const_to_valtree(tcx, param_env, raw)
52 providers.deref_const = |tcx, param_env_and_value| {
53 let (param_env, value) = param_env_and_value.into_parts();
54 const_eval::deref_const(tcx, param_env, value)