more replace FxHashMap with FxIndexMap

compiler/rustc_interface/src/passes.rs

@@ -306,10 +306,7 @@ fn early_lint_checks(tcx: TyCtxt<'_>, (): ()) {
 
     // Gate identifiers containing invalid Unicode codepoints that were recovered during lexing.
     sess.parse_sess.bad_unicode_identifiers.with_lock(|identifiers| {
-        // We will soon sort, so the initial order does not matter.
-        #[allow(rustc::potential_query_instability)]
-        let mut identifiers: Vec<_> = identifiers.drain().collect();
-        identifiers.sort_by_key(|&(key, _)| key);
+        let identifiers: Vec<_> = identifiers.drain(..).collect();
         for (ident, mut spans) in identifiers.into_iter() {
             spans.sort();
             if ident == sym::ferris {
@@ -435,7 +432,6 @@ fn write_out_deps(tcx: TyCtxt<'_>, outputs: &OutputFilenames, out_filenames: &[P
 
         // The entries will be used to declare dependencies beween files in a
         // Makefile-like output, so the iteration order does not matter.
-        #[allow(rustc::potential_query_instability)]
         let extra_tracked_files =
             file_depinfo.iter().map(|path_sym| normalize_path(PathBuf::from(path_sym.as_str())));
         files.extend(extra_tracked_files);

compiler/rustc_lint/src/context.rs

@@ -431,8 +431,6 @@ impl LintStore {
         // Note: find_best_match_for_name depends on the sort order of its input vector.
         // To ensure deterministic output, sort elements of the lint_groups hash map.
         // Also, never suggest deprecated lint groups.
-        // We will soon sort, so the initial order does not matter.
-        #[allow(rustc::potential_query_instability)]
         let mut groups: Vec<_> = self
             .lint_groups
             .iter()

compiler/rustc_lint/src/non_ascii_idents.rs

@@ -175,11 +175,8 @@ impl EarlyLintPass for NonAsciiIdents {
 
         // Sort by `Span` so that error messages make sense with respect to the
         // order of identifier locations in the code.
-        // We will soon sort, so the initial order does not matter.
-        #[allow(rustc::potential_query_instability)]
         let mut symbols: Vec<_> = symbols.iter().collect();
         symbols.sort_by_key(|k| k.1);
-
         for (symbol, &sp) in symbols.iter() {
             let symbol_str = symbol.as_str();
             if symbol_str.is_ascii() {
@@ -300,8 +297,6 @@ impl EarlyLintPass for NonAsciiIdents {
             }
 
             if has_suspicious {
-                // The end result is put in `lint_reports` which is sorted.
-                #[allow(rustc::potential_query_instability)]
                 let verified_augmented_script_sets = script_states
                     .iter()
                     .flat_map(|(k, v)| match v {
@@ -314,8 +309,6 @@ impl EarlyLintPass for NonAsciiIdents {
                 let mut lint_reports: BTreeMap<(Span, Vec<char>), AugmentedScriptSet> =
                     BTreeMap::new();
 
-                // The end result is put in `lint_reports` which is sorted.
-                #[allow(rustc::potential_query_instability)]
                 'outerloop: for (augment_script_set, usage) in script_states {
                     let ScriptSetUsage::Suspicious(mut ch_list, sp) = usage else { continue };
 

compiler/rustc_session/src/parse.rs

@@ -11,7 +11,7 @@ use crate::lint::{
 };
 use crate::Session;
 use rustc_ast::node_id::NodeId;
-use rustc_data_structures::fx::{FxHashMap, FxHashSet};
+use rustc_data_structures::fx::{FxIndexMap, FxIndexSet};
 use rustc_data_structures::sync::{AppendOnlyVec, Lock, Lrc};
 use rustc_errors::{emitter::SilentEmitter, DiagCtxt};
 use rustc_errors::{
@@ -30,7 +30,7 @@ use std::str;
 /// used and should be feature gated accordingly in `check_crate`.
 #[derive(Default)]
 pub struct GatedSpans {
-    pub spans: Lock<FxHashMap<Symbol, Vec<Span>>>,
+    pub spans: Lock<FxIndexMap<Symbol, Vec<Span>>>,
 }
 
 impl GatedSpans {
@@ -50,12 +50,9 @@ impl GatedSpans {
     }
 
     /// Prepend the given set of `spans` onto the set in `self`.
-    pub fn merge(&self, mut spans: FxHashMap<Symbol, Vec<Span>>) {
+    pub fn merge(&self, mut spans: FxIndexMap<Symbol, Vec<Span>>) {
         let mut inner = self.spans.borrow_mut();
-        // The entries will be moved to another map so the drain order does not
-        // matter.
-        #[allow(rustc::potential_query_instability)]
-        for (gate, mut gate_spans) in inner.drain() {
+        for (gate, mut gate_spans) in inner.drain(..) {
             spans.entry(gate).or_default().append(&mut gate_spans);
         }
         *inner = spans;
@@ -65,7 +62,7 @@ impl GatedSpans {
 #[derive(Default)]
 pub struct SymbolGallery {
     /// All symbols occurred and their first occurrence span.
-    pub symbols: Lock<FxHashMap<Symbol, Span>>,
+    pub symbols: Lock<FxIndexMap<Symbol, Span>>,
 }
 
 impl SymbolGallery {
@@ -205,19 +202,19 @@ pub struct ParseSess {
     /// Places where identifiers that contain invalid Unicode codepoints but that look like they
     /// should be. Useful to avoid bad tokenization when encountering emoji. We group them to
     /// provide a single error per unique incorrect identifier.
-    pub bad_unicode_identifiers: Lock<FxHashMap<Symbol, Vec<Span>>>,
+    pub bad_unicode_identifiers: Lock<FxIndexMap<Symbol, Vec<Span>>>,
     source_map: Lrc<SourceMap>,
     pub buffered_lints: Lock<Vec<BufferedEarlyLint>>,
     /// Contains the spans of block expressions that could have been incomplete based on the
     /// operation token that followed it, but that the parser cannot identify without further
     /// analysis.
-    pub ambiguous_block_expr_parse: Lock<FxHashMap<Span, Span>>,
+    pub ambiguous_block_expr_parse: Lock<FxIndexMap<Span, Span>>,
     pub gated_spans: GatedSpans,
     pub symbol_gallery: SymbolGallery,
     /// Environment variables accessed during the build and their values when they exist.
-    pub env_depinfo: Lock<FxHashSet<(Symbol, Option<Symbol>)>>,
+    pub env_depinfo: Lock<FxIndexSet<(Symbol, Option<Symbol>)>>,
     /// File paths accessed during the build.
-    pub file_depinfo: Lock<FxHashSet<Symbol>>,
+    pub file_depinfo: Lock<FxIndexSet<Symbol>>,
     /// Whether cfg(version) should treat the current release as incomplete
     pub assume_incomplete_release: bool,
     /// Spans passed to `proc_macro::quote_span`. Each span has a numerical
@@ -247,7 +244,7 @@ impl ParseSess {
             bad_unicode_identifiers: Lock::new(Default::default()),
             source_map,
             buffered_lints: Lock::new(vec![]),
-            ambiguous_block_expr_parse: Lock::new(FxHashMap::default()),
+            ambiguous_block_expr_parse: Lock::new(Default::default()),
             gated_spans: GatedSpans::default(),
             symbol_gallery: SymbolGallery::default(),
             env_depinfo: Default::default(),