diff options
Diffstat (limited to 'compiler/rustc_query_impl/src/lib.rs')
| -rw-r--r-- | compiler/rustc_query_impl/src/lib.rs | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/compiler/rustc_query_impl/src/lib.rs b/compiler/rustc_query_impl/src/lib.rs index d7708a3bc..7001a1eed 100644 --- a/compiler/rustc_query_impl/src/lib.rs +++ b/compiler/rustc_query_impl/src/lib.rs @@ -5,7 +5,6 @@ #![feature(const_mut_refs)] #![feature(min_specialization)] #![feature(never_type)] -#![feature(once_cell)] #![feature(rustc_attrs)] #![recursion_limit = "256"] #![allow(rustc::potential_query_instability)] @@ -19,13 +18,16 @@ extern crate rustc_middle; use rustc_data_structures::sync::AtomicU64; use rustc_middle::arena::Arena; -use rustc_middle::dep_graph::{self, DepKindStruct}; -use rustc_middle::query::Key; +use rustc_middle::dep_graph::{self, DepKind, DepKindStruct}; +use rustc_middle::query::erase::{erase, restore, Erase}; +use rustc_middle::query::AsLocalKey; use rustc_middle::ty::query::{ query_keys, query_provided, query_provided_to_value, query_storage, query_values, }; use rustc_middle::ty::query::{ExternProviders, Providers, QueryEngine}; use rustc_middle::ty::TyCtxt; +use rustc_query_system::dep_graph::SerializedDepNodeIndex; +use rustc_query_system::Value; use rustc_span::Span; #[macro_use] @@ -43,6 +45,13 @@ pub use on_disk_cache::OnDiskCache; mod profiling_support; pub use self::profiling_support::alloc_self_profile_query_strings; +/// This is implemented per query and restoring query values from their erased state. +trait QueryConfigRestored<'tcx>: QueryConfig<QueryCtxt<'tcx>> + Default { + type RestoredValue; + + fn restore(value: <Self as QueryConfig<QueryCtxt<'tcx>>>::Value) -> Self::RestoredValue; +} + rustc_query_append! { define_queries! } impl<'tcx> Queries<'tcx> { |