compiler/rustc_query_system/src/ich/impls_hir.rs

   1 //! This module contains `HashStable` implementations for various HIR data
   2 //! types in no particular order.
   3
   4 use crate::ich::hcx::BodyResolver;
   5 use crate::ich::StableHashingContext;
   6 use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
   7 use rustc_hir as hir;
   8
   9 impl<'ctx> rustc_hir::HashStableContext for StableHashingContext<'ctx> {
  10     #[inline]
  11     fn hash_body_id(&mut self, id: hir::BodyId, hasher: &mut StableHasher) {
  12         let hcx = self;
  13         match hcx.body_resolver {
  14             BodyResolver::Forbidden => panic!("Hashing HIR bodies is forbidden."),
  15             BodyResolver::Ignore => {}
  16             BodyResolver::Traverse { owner, bodies } => {
  17                 assert_eq!(id.hir_id.owner, owner);
  18                 bodies[&id.hir_id.local_id].hash_stable(hcx, hasher);
  19             }
  20         }
  21     }
  22 }