diff options
Diffstat (limited to 'compiler/rustc_data_structures/src/stable_hasher.rs')
-rw-r--r-- | compiler/rustc_data_structures/src/stable_hasher.rs | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/compiler/rustc_data_structures/src/stable_hasher.rs b/compiler/rustc_data_structures/src/stable_hasher.rs index ae4836645..e0d77cdae 100644 --- a/compiler/rustc_data_structures/src/stable_hasher.rs +++ b/compiler/rustc_data_structures/src/stable_hasher.rs @@ -486,6 +486,14 @@ impl<HCX> ToStableHashKey<HCX> for String { } } +impl<HCX, T1: ToStableHashKey<HCX>, T2: ToStableHashKey<HCX>> ToStableHashKey<HCX> for (T1, T2) { + type KeyType = (T1::KeyType, T2::KeyType); + #[inline] + fn to_stable_hash_key(&self, hcx: &HCX) -> Self::KeyType { + (self.0.to_stable_hash_key(hcx), self.1.to_stable_hash_key(hcx)) + } +} + impl<CTX> HashStable<CTX> for bool { #[inline] fn hash_stable(&self, ctx: &mut CTX, hasher: &mut StableHasher) { |