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Make iteration order of crate_inherent_impls query result stable.

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This commit is contained in:
Michael Woerister 2023-12-21 11:10:30 +01:00
parent db132c575d
commit 138cfab9f7
2 changed files with 5 additions and 10 deletions
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12
compiler/rustc_metadata/src/rmeta/encoder.rs
View File

@ -2,10 +2,8 @@ use crate::errors::{FailCreateFileEncoder, FailWriteFile};
use crate::rmeta::*;
use rustc_ast::Attribute;
use rustc_data_structures::fingerprint::Fingerprint;
use rustc_data_structures::fx::FxIndexSet;
use rustc_data_structures::memmap::{Mmap, MmapMut};
use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
use rustc_data_structures::sync::{join, par_for_each_in, Lrc};
use rustc_data_structures::temp_dir::MaybeTempDir;
use rustc_hir as hir;
@ -2034,14 +2032,10 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> {
fn encode_incoherent_impls(&mut self) -> LazyArray<IncoherentImpls> {
empty_proc_macro!(self);
let tcx = self.tcx;
let mut all_impls: Vec<_> = tcx.crate_inherent_impls(()).incoherent_impls.iter().collect();
tcx.with_stable_hashing_context(|mut ctx| {
all_impls.sort_by_cached_key(|&(&simp, _)| {
let mut hasher = StableHasher::new();
simp.hash_stable(&mut ctx, &mut hasher);
hasher.finish::<Fingerprint>()
})
let all_impls = tcx.with_stable_hashing_context(|hcx| {
tcx.crate_inherent_impls(()).incoherent_impls.to_sorted(&hcx, true)
});
let all_impls: Vec<_> = all_impls
.into_iter()
.map(|(&simp, impls)| {

3
compiler/rustc_middle/src/ty/mod.rs
View File

@ -38,6 +38,7 @@ use rustc_data_structures::intern::Interned;
use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
use rustc_data_structures::steal::Steal;
use rustc_data_structures::tagged_ptr::CopyTaggedPtr;
use rustc_data_structures::unord::UnordMap;
use rustc_errors::{DiagnosticBuilder, ErrorGuaranteed, StashKey};
use rustc_hir as hir;
use rustc_hir::def::{CtorKind, CtorOf, DefKind, DocLinkResMap, LifetimeRes, Res};
@ -2658,7 +2659,7 @@ pub fn provide(providers: &mut Providers) {
#[derive(Clone, Debug, Default, HashStable)]
pub struct CrateInherentImpls {
pub inherent_impls: LocalDefIdMap<Vec<DefId>>,
pub incoherent_impls: FxHashMap<SimplifiedType, Vec<LocalDefId>>,
pub incoherent_impls: UnordMap<SimplifiedType, Vec<LocalDefId>>,
}
#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, TyEncodable, HashStable)]