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Forbid hashing HIR outside of indexing.

This commit is contained in:
Camille GILLOT 2021-09-19 22:17:50 +02:00
parent cd1ace488f
commit 457de08487
11 changed files with 86 additions and 132 deletions

View file

@ -54,13 +54,14 @@ use rustc_middle::hir::exports::ExportMap;
use rustc_middle::span_bug;
use rustc_middle::ty::query::Providers;
use rustc_middle::ty::{self, DefIdTree, MainDefinition, ResolverOutputs};
use rustc_query_system::ich::StableHashingContext;
use rustc_session::cstore::{CrateStore, MetadataLoaderDyn};
use rustc_session::lint;
use rustc_session::lint::{BuiltinLintDiagnostics, LintBuffer};
use rustc_session::Session;
use rustc_span::edition::Edition;
use rustc_span::hygiene::{ExpnId, ExpnKind, LocalExpnId, MacroKind, SyntaxContext, Transparency};
use rustc_span::source_map::{CachingSourceMapView, Spanned};
use rustc_span::source_map::Spanned;
use rustc_span::symbol::{kw, sym, Ident, Symbol};
use rustc_span::{Span, DUMMY_SP};
@ -1177,6 +1178,10 @@ impl ResolverAstLowering for Resolver<'_> {
&mut self.definitions
}
fn create_stable_hashing_context(&self) -> StableHashingContext<'_> {
StableHashingContext::new(self.session, &self.definitions, self.crate_loader.cstore())
}
fn lint_buffer(&mut self) -> &mut LintBuffer {
&mut self.lint_buffer
}
@ -1245,37 +1250,6 @@ impl ResolverAstLowering for Resolver<'_> {
}
}
struct ExpandHasher<'a, 'b> {
source_map: CachingSourceMapView<'a>,
resolver: &'a Resolver<'b>,
}
impl<'a, 'b> rustc_span::HashStableContext for ExpandHasher<'a, 'b> {
#[inline]
fn hash_spans(&self) -> bool {
true
}
#[inline]
fn def_span(&self, id: LocalDefId) -> Span {
self.resolver.def_span(id)
}
#[inline]
fn def_path_hash(&self, def_id: DefId) -> DefPathHash {
self.resolver.def_path_hash(def_id)
}
#[inline]
fn span_data_to_lines_and_cols(
&mut self,
span: &rustc_span::SpanData,
) -> Option<(Lrc<rustc_span::SourceFile>, usize, rustc_span::BytePos, usize, rustc_span::BytePos)>
{
self.source_map.span_data_to_lines_and_cols(span)
}
}
impl<'a> Resolver<'a> {
pub fn new(
session: &'a Session,
@ -1456,13 +1430,6 @@ impl<'a> Resolver<'a> {
self.arenas.new_module(parent, kind, expn_id, span, no_implicit_prelude, module_map)
}
fn create_stable_hashing_context(&self) -> ExpandHasher<'_, 'a> {
ExpandHasher {
source_map: CachingSourceMapView::new(self.session.source_map()),
resolver: self,
}
}
pub fn next_node_id(&mut self) -> NodeId {
let next = self
.next_node_id