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use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
use crate::def_id::DefId;
use crate::hir::{BodyId, Expr, ImplItemId, ItemId, Mod, TraitItemId, Ty, VisibilityKind};
use crate::hir_id::HirId;
/// Requirements for a `StableHashingContext` to be used in this crate.
/// This is a hack to allow using the `HashStable_Generic` derive macro
/// instead of implementing everything in librustc.
pub trait HashStableContext: syntax::HashStableContext + rustc_target::HashStableContext {
fn hash_def_id(&mut self, _: DefId, hasher: &mut StableHasher);
fn hash_hir_id(&mut self, _: HirId, hasher: &mut StableHasher);
fn hash_body_id(&mut self, _: BodyId, hasher: &mut StableHasher);
fn hash_item_id(&mut self, _: ItemId, hasher: &mut StableHasher);
fn hash_impl_item_id(&mut self, _: ImplItemId, hasher: &mut StableHasher);
fn hash_trait_item_id(&mut self, _: TraitItemId, hasher: &mut StableHasher);
fn hash_hir_mod(&mut self, _: &Mod<'_>, hasher: &mut StableHasher);
fn hash_hir_expr(&mut self, _: &Expr<'_>, hasher: &mut StableHasher);
fn hash_hir_ty(&mut self, _: &Ty<'_>, hasher: &mut StableHasher);
fn hash_hir_visibility_kind(&mut self, _: &VisibilityKind<'_>, hasher: &mut StableHasher);
}
impl<HirCtx: crate::HashStableContext> HashStable<HirCtx> for HirId {
fn hash_stable(&self, hcx: &mut HirCtx, hasher: &mut StableHasher) {
hcx.hash_hir_id(*self, hasher)
}
}
impl<HirCtx: crate::HashStableContext> HashStable<HirCtx> for DefId {
fn hash_stable(&self, hcx: &mut HirCtx, hasher: &mut StableHasher) {
hcx.hash_def_id(*self, hasher)
}
}
impl<HirCtx: crate::HashStableContext> HashStable<HirCtx> for BodyId {
fn hash_stable(&self, hcx: &mut HirCtx, hasher: &mut StableHasher) {
hcx.hash_body_id(*self, hasher)
}
}
impl<HirCtx: crate::HashStableContext> HashStable<HirCtx> for ItemId {
fn hash_stable(&self, hcx: &mut HirCtx, hasher: &mut StableHasher) {
hcx.hash_item_id(*self, hasher)
}
}
impl<HirCtx: crate::HashStableContext> HashStable<HirCtx> for ImplItemId {
fn hash_stable(&self, hcx: &mut HirCtx, hasher: &mut StableHasher) {
hcx.hash_impl_item_id(*self, hasher)
}
}
impl<HirCtx: crate::HashStableContext> HashStable<HirCtx> for TraitItemId {
fn hash_stable(&self, hcx: &mut HirCtx, hasher: &mut StableHasher) {
hcx.hash_trait_item_id(*self, hasher)
}
}
impl<HirCtx: crate::HashStableContext> HashStable<HirCtx> for Mod<'_> {
fn hash_stable(&self, hcx: &mut HirCtx, hasher: &mut StableHasher) {
hcx.hash_hir_mod(self, hasher)
}
}
impl<HirCtx: crate::HashStableContext> HashStable<HirCtx> for Expr<'_> {
fn hash_stable(&self, hcx: &mut HirCtx, hasher: &mut StableHasher) {
hcx.hash_hir_expr(self, hasher)
}
}
impl<HirCtx: crate::HashStableContext> HashStable<HirCtx> for Ty<'_> {
fn hash_stable(&self, hcx: &mut HirCtx, hasher: &mut StableHasher) {
hcx.hash_hir_ty(self, hasher)
}
}
impl<HirCtx: crate::HashStableContext> HashStable<HirCtx> for VisibilityKind<'_> {
fn hash_stable(&self, hcx: &mut HirCtx, hasher: &mut StableHasher) {
hcx.hash_hir_visibility_kind(self, hasher)
}
}
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