1 use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
3 use crate::def_id::DefId;
4 use crate::hir::{BodyId, Expr, ImplItemId, ItemId, Mod, TraitItemId, Ty, VisibilityKind};
5 use crate::hir_id::HirId;
7 /// Requirements for a `StableHashingContext` to be used in this crate.
8 /// This is a hack to allow using the `HashStable_Generic` derive macro
9 /// instead of implementing everything in librustc.
10 pub trait HashStableContext: syntax::HashStableContext + rustc_target::HashStableContext {
11 fn hash_def_id(&mut self, _: DefId, hasher: &mut StableHasher);
12 fn hash_hir_id(&mut self, _: HirId, hasher: &mut StableHasher);
13 fn hash_body_id(&mut self, _: BodyId, hasher: &mut StableHasher);
14 fn hash_item_id(&mut self, _: ItemId, hasher: &mut StableHasher);
15 fn hash_impl_item_id(&mut self, _: ImplItemId, hasher: &mut StableHasher);
16 fn hash_trait_item_id(&mut self, _: TraitItemId, hasher: &mut StableHasher);
17 fn hash_hir_mod(&mut self, _: &Mod<'_>, hasher: &mut StableHasher);
18 fn hash_hir_expr(&mut self, _: &Expr<'_>, hasher: &mut StableHasher);
19 fn hash_hir_ty(&mut self, _: &Ty<'_>, hasher: &mut StableHasher);
20 fn hash_hir_visibility_kind(&mut self, _: &VisibilityKind<'_>, hasher: &mut StableHasher);
23 impl<HirCtx: crate::HashStableContext> HashStable<HirCtx> for HirId {
24 fn hash_stable(&self, hcx: &mut HirCtx, hasher: &mut StableHasher) {
25 hcx.hash_hir_id(*self, hasher)
29 impl<HirCtx: crate::HashStableContext> HashStable<HirCtx> for DefId {
30 fn hash_stable(&self, hcx: &mut HirCtx, hasher: &mut StableHasher) {
31 hcx.hash_def_id(*self, hasher)
35 impl<HirCtx: crate::HashStableContext> HashStable<HirCtx> for BodyId {
36 fn hash_stable(&self, hcx: &mut HirCtx, hasher: &mut StableHasher) {
37 hcx.hash_body_id(*self, hasher)
41 impl<HirCtx: crate::HashStableContext> HashStable<HirCtx> for ItemId {
42 fn hash_stable(&self, hcx: &mut HirCtx, hasher: &mut StableHasher) {
43 hcx.hash_item_id(*self, hasher)
47 impl<HirCtx: crate::HashStableContext> HashStable<HirCtx> for ImplItemId {
48 fn hash_stable(&self, hcx: &mut HirCtx, hasher: &mut StableHasher) {
49 hcx.hash_impl_item_id(*self, hasher)
53 impl<HirCtx: crate::HashStableContext> HashStable<HirCtx> for TraitItemId {
54 fn hash_stable(&self, hcx: &mut HirCtx, hasher: &mut StableHasher) {
55 hcx.hash_trait_item_id(*self, hasher)
59 impl<HirCtx: crate::HashStableContext> HashStable<HirCtx> for Mod<'_> {
60 fn hash_stable(&self, hcx: &mut HirCtx, hasher: &mut StableHasher) {
61 hcx.hash_hir_mod(self, hasher)
65 impl<HirCtx: crate::HashStableContext> HashStable<HirCtx> for Expr<'_> {
66 fn hash_stable(&self, hcx: &mut HirCtx, hasher: &mut StableHasher) {
67 hcx.hash_hir_expr(self, hasher)
71 impl<HirCtx: crate::HashStableContext> HashStable<HirCtx> for Ty<'_> {
72 fn hash_stable(&self, hcx: &mut HirCtx, hasher: &mut StableHasher) {
73 hcx.hash_hir_ty(self, hasher)
77 impl<HirCtx: crate::HashStableContext> HashStable<HirCtx> for VisibilityKind<'_> {
78 fn hash_stable(&self, hcx: &mut HirCtx, hasher: &mut StableHasher) {
79 hcx.hash_hir_visibility_kind(self, hasher)