1 //! The implementation of the query system itself. This defines the macros that
2 //! generate the actual methods on tcx which find and execute the provider,
3 //! manage the caches, and so forth.
5 use crate::dep_graph::{DepNodeIndex, DepNode, DepKind, SerializedDepNodeIndex};
7 use crate::ty::{TyCtxt};
8 use crate::ty::query::Query;
9 use crate::ty::query::config::{QueryConfig, QueryDescription};
10 use crate::ty::query::job::{QueryJob, QueryResult, QueryInfo};
11 use crate::ty::item_path;
13 use crate::util::common::{profq_msg, ProfileQueriesMsg, QueryMsg};
15 use errors::DiagnosticBuilder;
17 use errors::Diagnostic;
18 use errors::FatalError;
19 use rustc_data_structures::fx::{FxHashMap};
20 use rustc_data_structures::sync::{Lrc, Lock};
21 use rustc_data_structures::thin_vec::ThinVec;
22 #[cfg(not(parallel_compiler))]
23 use rustc_data_structures::cold_path;
26 use std::collections::hash_map::Entry;
28 use syntax::source_map::DUMMY_SP;
30 pub struct QueryCache<'tcx, D: QueryConfig<'tcx> + ?Sized> {
31 pub(super) results: FxHashMap<D::Key, QueryValue<D::Value>>,
32 pub(super) active: FxHashMap<D::Key, QueryResult<'tcx>>,
33 #[cfg(debug_assertions)]
34 pub(super) cache_hits: usize,
37 pub(super) struct QueryValue<T> {
39 pub(super) index: DepNodeIndex,
42 impl<T> QueryValue<T> {
43 pub(super) fn new(value: T,
44 dep_node_index: DepNodeIndex)
48 index: dep_node_index,
53 impl<'tcx, M: QueryConfig<'tcx>> Default for QueryCache<'tcx, M> {
54 fn default() -> QueryCache<'tcx, M> {
56 results: FxHashMap::default(),
57 active: FxHashMap::default(),
58 #[cfg(debug_assertions)]
64 // If enabled, send a message to the profile-queries thread
65 macro_rules! profq_msg {
66 ($tcx:expr, $msg:expr) => {
67 if cfg!(debug_assertions) {
68 if $tcx.sess.profile_queries() {
69 profq_msg($tcx.sess, $msg)
75 // If enabled, format a key using its debug string, which can be
76 // expensive to compute (in terms of time).
77 macro_rules! profq_query_msg {
78 ($query:expr, $tcx:expr, $key:expr) => {{
79 let msg = if cfg!(debug_assertions) {
80 if $tcx.sess.profile_queries_and_keys() {
81 Some(format!("{:?}", $key))
91 /// A type representing the responsibility to execute the job in the `job` field.
92 /// This will poison the relevant query if dropped.
93 pub(super) struct JobOwner<'a, 'tcx: 'a, Q: QueryDescription<'tcx> + 'a> {
94 cache: &'a Lock<QueryCache<'tcx, Q>>,
96 job: Lrc<QueryJob<'tcx>>,
99 impl<'a, 'tcx, Q: QueryDescription<'tcx>> JobOwner<'a, 'tcx, Q> {
100 /// Either gets a JobOwner corresponding the query, allowing us to
101 /// start executing the query, or it returns with the result of the query.
102 /// If the query is executing elsewhere, this will wait for it.
103 /// If the query panicked, this will silently panic.
105 /// This function is inlined because that results in a noticeable speedup
106 /// for some compile-time benchmarks.
108 pub(super) fn try_get(
109 tcx: TyCtxt<'a, 'tcx, '_>,
112 ) -> TryGetJob<'a, 'tcx, Q> {
113 let cache = Q::query_cache(tcx);
115 let mut lock = cache.borrow_mut();
116 if let Some(value) = lock.results.get(key) {
117 profq_msg!(tcx, ProfileQueriesMsg::CacheHit);
118 tcx.sess.profiler(|p| p.record_query_hit(Q::NAME, Q::CATEGORY));
119 let result = (value.value.clone(), value.index);
120 #[cfg(debug_assertions)]
122 lock.cache_hits += 1;
124 return TryGetJob::JobCompleted(result);
126 let job = match lock.active.entry((*key).clone()) {
127 Entry::Occupied(entry) => {
129 QueryResult::Started(ref job) => {
130 //For parallel queries, we'll block and wait until the query running
131 //in another thread has completed. Record how long we wait in the
133 #[cfg(parallel_compiler)]
134 tcx.sess.profiler(|p| p.query_blocked_start(Q::NAME, Q::CATEGORY));
138 QueryResult::Poisoned => FatalError.raise(),
141 Entry::Vacant(entry) => {
142 // No job entry for this query. Return a new one to be started later
143 return tls::with_related_context(tcx, |icx| {
144 // Create the `parent` variable before `info`. This allows LLVM
145 // to elide the move of `info`
146 let parent = icx.query.clone();
147 let info = QueryInfo {
149 query: Q::query(key.clone()),
151 let job = Lrc::new(QueryJob::new(info, parent));
152 let owner = JobOwner {
157 entry.insert(QueryResult::Started(job));
158 TryGetJob::NotYetStarted(owner)
164 // If we are single-threaded we know that we have cycle error,
165 // so we just return the error
166 #[cfg(not(parallel_compiler))]
167 return TryGetJob::Cycle(cold_path(|| {
168 Q::handle_cycle_error(tcx, job.find_cycle_in_stack(tcx, span))
171 // With parallel queries we might just have to wait on some other
173 #[cfg(parallel_compiler)]
175 let result = job.r#await(tcx, span);
176 tcx.sess.profiler(|p| p.query_blocked_end(Q::NAME, Q::CATEGORY));
178 if let Err(cycle) = result {
179 return TryGetJob::Cycle(Q::handle_cycle_error(tcx, cycle));
185 /// Completes the query by updating the query cache with the `result`,
186 /// signals the waiter and forgets the JobOwner, so it won't poison the query
188 pub(super) fn complete(self, result: &Q::Value, dep_node_index: DepNodeIndex) {
189 // We can move out of `self` here because we `mem::forget` it below
190 let key = unsafe { ptr::read(&self.key) };
191 let job = unsafe { ptr::read(&self.job) };
192 let cache = self.cache;
194 // Forget ourself so our destructor won't poison the query
197 let value = QueryValue::new(result.clone(), dep_node_index);
199 let mut lock = cache.borrow_mut();
200 lock.active.remove(&key);
201 lock.results.insert(key, value);
204 job.signal_complete();
209 fn with_diagnostics<F, R>(f: F) -> (R, ThinVec<Diagnostic>)
211 F: FnOnce(Option<&Lock<ThinVec<Diagnostic>>>) -> R
213 let diagnostics = Lock::new(ThinVec::new());
214 let result = f(Some(&diagnostics));
215 (result, diagnostics.into_inner())
218 impl<'a, 'tcx, Q: QueryDescription<'tcx>> Drop for JobOwner<'a, 'tcx, Q> {
222 // Poison the query so jobs waiting on it panic
223 self.cache.borrow_mut().active.insert(self.key.clone(), QueryResult::Poisoned);
224 // Also signal the completion of the job, so waiters
225 // will continue execution
226 self.job.signal_complete();
231 pub struct CycleError<'tcx> {
232 /// The query and related span which uses the cycle
233 pub(super) usage: Option<(Span, Query<'tcx>)>,
234 pub(super) cycle: Vec<QueryInfo<'tcx>>,
237 /// The result of `try_get_lock`
238 pub(super) enum TryGetJob<'a, 'tcx: 'a, D: QueryDescription<'tcx> + 'a> {
239 /// The query is not yet started. Contains a guard to the cache eventually used to start it.
240 NotYetStarted(JobOwner<'a, 'tcx, D>),
242 /// The query was already completed.
243 /// Returns the result of the query and its dep node index
244 /// if it succeeded or a cycle error if it failed
245 JobCompleted((D::Value, DepNodeIndex)),
247 /// Trying to execute the query resulted in a cycle.
251 impl<'a, 'gcx, 'tcx> TyCtxt<'a, 'gcx, 'tcx> {
252 /// Executes a job by changing the ImplicitCtxt to point to the
253 /// new query job while it executes. It returns the diagnostics
254 /// captured during execution and the actual result.
256 pub(super) fn start_query<F, R>(
258 job: Lrc<QueryJob<'gcx>>,
259 diagnostics: Option<&Lock<ThinVec<Diagnostic>>>,
263 F: for<'b, 'lcx> FnOnce(TyCtxt<'b, 'gcx, 'lcx>) -> R
265 // The TyCtxt stored in TLS has the same global interner lifetime
266 // as `self`, so we use `with_related_context` to relate the 'gcx lifetimes
267 // when accessing the ImplicitCtxt
268 tls::with_related_context(self, move |current_icx| {
269 // Update the ImplicitCtxt to point to our new query job
270 let new_icx = tls::ImplicitCtxt {
271 tcx: self.global_tcx(),
274 layout_depth: current_icx.layout_depth,
275 task_deps: current_icx.task_deps,
278 // Use the ImplicitCtxt while we execute the query
279 tls::enter_context(&new_icx, |_| {
280 compute(self.global_tcx())
287 pub(super) fn report_cycle(
289 CycleError { usage, cycle: stack }: CycleError<'gcx>
290 ) -> DiagnosticBuilder<'a>
292 assert!(!stack.is_empty());
294 let fix_span = |span: Span, query: &Query<'gcx>| {
295 self.sess.source_map().def_span(query.default_span(self, span))
298 // Disable naming impls with types in this path, since that
299 // sometimes cycles itself, leading to extra cycle errors.
300 // (And cycle errors around impls tend to occur during the
301 // collect/coherence phases anyhow.)
302 item_path::with_forced_impl_filename_line(|| {
303 let span = fix_span(stack[1 % stack.len()].span, &stack[0].query);
304 let mut err = struct_span_err!(self.sess,
307 "cycle detected when {}",
308 stack[0].query.describe(self));
310 for i in 1..stack.len() {
311 let query = &stack[i].query;
312 let span = fix_span(stack[(i + 1) % stack.len()].span, query);
313 err.span_note(span, &format!("...which requires {}...", query.describe(self)));
316 err.note(&format!("...which again requires {}, completing the cycle",
317 stack[0].query.describe(self)));
319 if let Some((span, query)) = usage {
320 err.span_note(fix_span(span, &query),
321 &format!("cycle used when {}", query.describe(self)));
328 pub fn try_print_query_stack() {
329 eprintln!("query stack during panic:");
331 tls::with_context_opt(|icx| {
332 if let Some(icx) = icx {
333 let mut current_query = icx.query.clone();
336 while let Some(query) = current_query {
337 let mut db = DiagnosticBuilder::new(icx.tcx.sess.diagnostic(),
339 &format!("#{} [{}] {}",
341 query.info.query.name(),
342 query.info.query.describe(icx.tcx)));
343 db.set_span(icx.tcx.sess.source_map().def_span(query.info.span));
344 icx.tcx.sess.diagnostic().force_print_db(db);
346 current_query = query.parent.clone();
352 eprintln!("end of query stack");
356 pub(super) fn get_query<Q: QueryDescription<'gcx>>(
361 debug!("ty::query::get_query<{}>(key={:?}, span={:?})",
367 ProfileQueriesMsg::QueryBegin(
369 profq_query_msg!(Q::NAME, self, key),
373 let job = match JobOwner::try_get(self, span, &key) {
374 TryGetJob::NotYetStarted(job) => job,
375 TryGetJob::Cycle(result) => return result,
376 TryGetJob::JobCompleted((v, index)) => {
377 self.dep_graph.read_index(index);
382 // Fast path for when incr. comp. is off. `to_dep_node` is
383 // expensive for some DepKinds.
384 if !self.dep_graph.is_fully_enabled() {
385 let null_dep_node = DepNode::new_no_params(crate::dep_graph::DepKind::Null);
386 return self.force_query_with_job::<Q>(key, job, null_dep_node).0;
389 let dep_node = Q::to_dep_node(self, &key);
391 if dep_node.kind.is_anon() {
392 profq_msg!(self, ProfileQueriesMsg::ProviderBegin);
393 self.sess.profiler(|p| p.start_query(Q::NAME, Q::CATEGORY));
395 let ((result, dep_node_index), diagnostics) = with_diagnostics(|diagnostics| {
396 self.start_query(job.job.clone(), diagnostics, |tcx| {
397 tcx.dep_graph.with_anon_task(dep_node.kind, || {
398 Q::compute(tcx.global_tcx(), key)
403 self.sess.profiler(|p| p.end_query(Q::NAME, Q::CATEGORY));
404 profq_msg!(self, ProfileQueriesMsg::ProviderEnd);
406 self.dep_graph.read_index(dep_node_index);
408 if unlikely!(!diagnostics.is_empty()) {
409 self.queries.on_disk_cache
410 .store_diagnostics_for_anon_node(dep_node_index, diagnostics);
413 job.complete(&result, dep_node_index);
418 if !dep_node.kind.is_input() {
419 // The diagnostics for this query will be
420 // promoted to the current session during
421 // try_mark_green(), so we can ignore them here.
422 let loaded = self.start_query(job.job.clone(), None, |tcx| {
423 let marked = tcx.dep_graph.try_mark_green_and_read(tcx, &dep_node);
424 marked.map(|(prev_dep_node_index, dep_node_index)| {
425 (tcx.load_from_disk_and_cache_in_memory::<Q>(
433 if let Some((result, dep_node_index)) = loaded {
434 job.complete(&result, dep_node_index);
439 let (result, dep_node_index) = self.force_query_with_job::<Q>(key, job, dep_node);
440 self.dep_graph.read_index(dep_node_index);
444 fn load_from_disk_and_cache_in_memory<Q: QueryDescription<'gcx>>(
447 prev_dep_node_index: SerializedDepNodeIndex,
448 dep_node_index: DepNodeIndex,
452 // Note this function can be called concurrently from the same query
453 // We must ensure that this is handled correctly
455 debug_assert!(self.dep_graph.is_green(dep_node));
457 // First we try to load the result from the on-disk cache
458 let result = if Q::cache_on_disk(self.global_tcx(), key.clone()) &&
459 self.sess.opts.debugging_opts.incremental_queries {
460 self.sess.profiler(|p| p.incremental_load_result_start(Q::NAME));
461 let result = Q::try_load_from_disk(self.global_tcx(), prev_dep_node_index);
462 self.sess.profiler(|p| p.incremental_load_result_end(Q::NAME));
464 // We always expect to find a cached result for things that
465 // can be forced from DepNode.
466 debug_assert!(!dep_node.kind.can_reconstruct_query_key() ||
468 "Missing on-disk cache entry for {:?}",
472 // Some things are never cached on disk.
476 let result = if let Some(result) = result {
477 profq_msg!(self, ProfileQueriesMsg::CacheHit);
478 self.sess.profiler(|p| p.record_query_hit(Q::NAME, Q::CATEGORY));
482 // We could not load a result from the on-disk cache, so
485 self.sess.profiler(|p| p.start_query(Q::NAME, Q::CATEGORY));
487 // The dep-graph for this computation is already in
489 let result = self.dep_graph.with_ignore(|| {
490 Q::compute(self, key)
493 self.sess.profiler(|p| p.end_query(Q::NAME, Q::CATEGORY));
497 // If -Zincremental-verify-ich is specified, re-hash results from
498 // the cache and make sure that they have the expected fingerprint.
499 if unlikely!(self.sess.opts.debugging_opts.incremental_verify_ich) {
500 self.incremental_verify_ich::<Q>(&result, dep_node, dep_node_index);
503 if unlikely!(self.sess.opts.debugging_opts.query_dep_graph) {
504 self.dep_graph.mark_loaded_from_cache(dep_node_index, true);
512 fn incremental_verify_ich<Q: QueryDescription<'gcx>>(
516 dep_node_index: DepNodeIndex,
518 use crate::ich::Fingerprint;
520 assert!(Some(self.dep_graph.fingerprint_of(dep_node_index)) ==
521 self.dep_graph.prev_fingerprint_of(dep_node),
522 "Fingerprint for green query instance not loaded \
523 from cache: {:?}", dep_node);
525 debug!("BEGIN verify_ich({:?})", dep_node);
526 let mut hcx = self.create_stable_hashing_context();
528 let new_hash = Q::hash_result(&mut hcx, result).unwrap_or(Fingerprint::ZERO);
529 debug!("END verify_ich({:?})", dep_node);
531 let old_hash = self.dep_graph.fingerprint_of(dep_node_index);
533 assert!(new_hash == old_hash, "Found unstable fingerprints \
534 for {:?}", dep_node);
538 fn force_query_with_job<Q: QueryDescription<'gcx>>(
541 job: JobOwner<'_, 'gcx, Q>,
543 -> (Q::Value, DepNodeIndex) {
544 // If the following assertion triggers, it can have two reasons:
545 // 1. Something is wrong with DepNode creation, either here or
546 // in DepGraph::try_mark_green()
547 // 2. Two distinct query keys get mapped to the same DepNode
548 // (see for example #48923)
549 assert!(!self.dep_graph.dep_node_exists(&dep_node),
550 "Forcing query with already existing DepNode.\n\
555 profq_msg!(self, ProfileQueriesMsg::ProviderBegin);
556 self.sess.profiler(|p| p.start_query(Q::NAME, Q::CATEGORY));
558 let ((result, dep_node_index), diagnostics) = with_diagnostics(|diagnostics| {
559 self.start_query(job.job.clone(), diagnostics, |tcx| {
560 if dep_node.kind.is_eval_always() {
561 tcx.dep_graph.with_eval_always_task(dep_node,
567 tcx.dep_graph.with_task(dep_node,
576 self.sess.profiler(|p| p.end_query(Q::NAME, Q::CATEGORY));
577 profq_msg!(self, ProfileQueriesMsg::ProviderEnd);
579 if unlikely!(self.sess.opts.debugging_opts.query_dep_graph) {
580 self.dep_graph.mark_loaded_from_cache(dep_node_index, false);
583 if dep_node.kind != crate::dep_graph::DepKind::Null {
584 if unlikely!(!diagnostics.is_empty()) {
585 self.queries.on_disk_cache
586 .store_diagnostics(dep_node_index, diagnostics);
590 job.complete(&result, dep_node_index);
592 (result, dep_node_index)
595 /// Ensure that either this query has all green inputs or been executed.
596 /// Executing query::ensure(D) is considered a read of the dep-node D.
598 /// This function is particularly useful when executing passes for their
599 /// side-effects -- e.g., in order to report errors for erroneous programs.
601 /// Note: The optimization is only available during incr. comp.
602 pub(super) fn ensure_query<Q: QueryDescription<'gcx>>(self, key: Q::Key) -> () {
603 let dep_node = Q::to_dep_node(self, &key);
605 // Ensuring an "input" or anonymous query makes no sense
606 assert!(!dep_node.kind.is_anon());
607 assert!(!dep_node.kind.is_input());
608 if self.dep_graph.try_mark_green_and_read(self, &dep_node).is_none() {
609 // A None return from `try_mark_green_and_read` means that this is either
610 // a new dep node or that the dep node has already been marked red.
611 // Either way, we can't call `dep_graph.read()` as we don't have the
612 // DepNodeIndex. We must invoke the query itself. The performance cost
613 // this introduces should be negligible as we'll immediately hit the
614 // in-memory cache, or another query down the line will.
616 let _ = self.get_query::<Q>(DUMMY_SP, key);
618 profq_msg!(self, ProfileQueriesMsg::CacheHit);
619 self.sess.profiler(|p| p.record_query_hit(Q::NAME, Q::CATEGORY));
624 fn force_query<Q: QueryDescription<'gcx>>(
632 ProfileQueriesMsg::QueryBegin(span.data(), profq_query_msg!(Q::NAME, self, key))
635 // We may be concurrently trying both execute and force a query
636 // Ensure that only one of them runs the query
637 let job = match JobOwner::try_get(self, span, &key) {
638 TryGetJob::NotYetStarted(job) => job,
639 TryGetJob::Cycle(_) |
640 TryGetJob::JobCompleted(_) => {
644 self.force_query_with_job::<Q>(key, job, dep_node);
648 macro_rules! handle_cycle_error {
649 ([][$tcx: expr, $error:expr]) => {{
650 $tcx.report_cycle($error).emit();
651 Value::from_cycle_error($tcx.global_tcx())
653 ([fatal_cycle$(, $modifiers:ident)*][$tcx:expr, $error:expr]) => {{
654 $tcx.report_cycle($error).emit();
655 $tcx.sess.abort_if_errors();
658 ([cycle_delay_bug$(, $modifiers:ident)*][$tcx:expr, $error:expr]) => {{
659 $tcx.report_cycle($error).delay_as_bug();
660 Value::from_cycle_error($tcx.global_tcx())
662 ([$other:ident$(, $modifiers:ident)*][$($args:tt)*]) => {
663 handle_cycle_error!([$($modifiers),*][$($args)*])
667 macro_rules! hash_result {
668 ([][$hcx:expr, $result:expr]) => {{
669 dep_graph::hash_result($hcx, &$result)
671 ([no_hash$(, $modifiers:ident)*][$hcx:expr, $result:expr]) => {{
674 ([$other:ident$(, $modifiers:ident)*][$($args:tt)*]) => {
675 hash_result!([$($modifiers),*][$($args)*])
679 macro_rules! define_queries {
680 (<$tcx:tt> $($category:tt {
681 $($(#[$attr:meta])* [$($modifiers:tt)*] fn $name:ident: $node:ident($K:ty) -> $V:ty,)*
683 define_queries_inner! { <$tcx>
684 $($( $(#[$attr])* category<$category> [$($modifiers)*] fn $name: $node($K) -> $V,)*)*
689 macro_rules! define_queries_inner {
691 $($(#[$attr:meta])* category<$category:tt>
692 [$($modifiers:tt)*] fn $name:ident: $node:ident($K:ty) -> $V:ty,)*) => {
695 #[cfg(parallel_compiler)]
696 use ty::query::job::QueryResult;
697 use rustc_data_structures::sync::Lock;
699 rustc_data_structures::stable_hasher::HashStable,
700 rustc_data_structures::stable_hasher::StableHasherResult,
701 rustc_data_structures::stable_hasher::StableHasher,
702 ich::StableHashingContext
704 use crate::util::profiling::ProfileCategory;
706 define_queries_struct! {
708 input: ($(([$($modifiers)*] [$($attr)*] [$name]))*)
711 impl<$tcx> Queries<$tcx> {
713 providers: IndexVec<CrateNum, Providers<$tcx>>,
714 fallback_extern_providers: Providers<$tcx>,
715 on_disk_cache: OnDiskCache<'tcx>,
719 fallback_extern_providers: Box::new(fallback_extern_providers),
721 $($name: Default::default()),*
725 pub fn record_computed_queries(&self, sess: &Session) {
728 p.record_computed_queries(
729 <queries::$name<'_> as QueryConfig<'_>>::NAME,
730 <queries::$name<'_> as QueryConfig<'_>>::CATEGORY,
731 self.$name.lock().results.len()
737 #[cfg(parallel_compiler)]
738 pub fn collect_active_jobs(&self) -> Vec<Lrc<QueryJob<$tcx>>> {
739 let mut jobs = Vec::new();
741 // We use try_lock here since we are only called from the
742 // deadlock handler, and this shouldn't be locked
745 self.$name.try_lock().unwrap().active.values().filter_map(|v|
746 if let QueryResult::Started(ref job) = *v {
758 pub fn print_stats(&self) {
759 let mut queries = Vec::new();
766 key_type: &'static str,
768 value_type: &'static str,
772 fn stats<'tcx, Q: QueryConfig<'tcx>>(
774 map: &QueryCache<'tcx, Q>
778 #[cfg(debug_assertions)]
779 cache_hits: map.cache_hits,
780 #[cfg(not(debug_assertions))]
782 key_size: mem::size_of::<Q::Key>(),
783 key_type: unsafe { type_name::<Q::Key>() },
784 value_size: mem::size_of::<Q::Value>(),
785 value_type: unsafe { type_name::<Q::Value>() },
786 entry_count: map.results.len(),
791 queries.push(stats::<queries::$name<'_>>(
797 if cfg!(debug_assertions) {
798 let hits: usize = queries.iter().map(|s| s.cache_hits).sum();
799 let results: usize = queries.iter().map(|s| s.entry_count).sum();
800 println!("\nQuery cache hit rate: {}", hits as f64 / (hits + results) as f64);
803 let mut query_key_sizes = queries.clone();
804 query_key_sizes.sort_by_key(|q| q.key_size);
805 println!("\nLarge query keys:");
806 for q in query_key_sizes.iter().rev()
807 .filter(|q| q.key_size > 8) {
809 " {} - {} x {} - {}",
817 let mut query_value_sizes = queries.clone();
818 query_value_sizes.sort_by_key(|q| q.value_size);
819 println!("\nLarge query values:");
820 for q in query_value_sizes.iter().rev()
821 .filter(|q| q.value_size > 8) {
823 " {} - {} x {} - {}",
831 if cfg!(debug_assertions) {
832 let mut query_cache_hits = queries.clone();
833 query_cache_hits.sort_by_key(|q| q.cache_hits);
834 println!("\nQuery cache hits:");
835 for q in query_cache_hits.iter().rev() {
840 q.cache_hits as f64 / (q.cache_hits + q.entry_count) as f64
845 let mut query_value_count = queries.clone();
846 query_value_count.sort_by_key(|q| q.entry_count);
847 println!("\nQuery value count:");
848 for q in query_value_count.iter().rev() {
849 println!(" {} - {}", q.name, q.entry_count);
854 #[allow(nonstandard_style)]
855 #[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
856 pub enum Query<$tcx> {
857 $($(#[$attr])* $name($K)),*
860 impl<$tcx> Query<$tcx> {
861 pub fn name(&self) -> &'static str {
863 $(Query::$name(_) => stringify!($name),)*
867 pub fn describe(&self, tcx: TyCtxt<'_, '_, '_>) -> Cow<'static, str> {
868 let (r, name) = match *self {
869 $(Query::$name(key) => {
870 (queries::$name::describe(tcx, key), stringify!($name))
873 if tcx.sess.verbose() {
874 format!("{} [{}]", r, name).into()
880 // FIXME(eddyb) Get more valid Span's on queries.
881 pub fn default_span(&self, tcx: TyCtxt<'_, $tcx, '_>, span: Span) -> Span {
882 if !span.is_dummy() {
885 // The def_span query is used to calculate default_span,
886 // so exit to avoid infinite recursion
887 if let Query::def_span(..) = *self {
891 $(Query::$name(key) => key.default_span(tcx),)*
896 impl<'a, $tcx> HashStable<StableHashingContext<'a>> for Query<$tcx> {
897 fn hash_stable<W: StableHasherResult>(&self,
898 hcx: &mut StableHashingContext<'a>,
899 hasher: &mut StableHasher<W>) {
900 mem::discriminant(self).hash_stable(hcx, hasher);
902 $(Query::$name(key) => key.hash_stable(hcx, hasher),)*
908 use std::marker::PhantomData;
910 $(#[allow(nonstandard_style)]
911 pub struct $name<$tcx> {
912 data: PhantomData<&$tcx ()>
916 // This module and the functions in it exist only to provide a
917 // predictable symbol name prefix for query providers. This is helpful
918 // for analyzing queries in profilers.
919 pub(super) mod __query_compute {
921 pub fn $name<F: FnOnce() -> R, R>(f: F) -> R {
926 $(impl<$tcx> QueryConfig<$tcx> for queries::$name<$tcx> {
930 const NAME: &'static str = stringify!($name);
931 const CATEGORY: ProfileCategory = $category;
934 impl<$tcx> QueryAccessors<$tcx> for queries::$name<$tcx> {
936 fn query(key: Self::Key) -> Query<'tcx> {
941 fn query_cache<'a>(tcx: TyCtxt<'a, $tcx, '_>) -> &'a Lock<QueryCache<$tcx, Self>> {
947 fn to_dep_node(tcx: TyCtxt<'_, $tcx, '_>, key: &Self::Key) -> DepNode {
948 use crate::dep_graph::DepConstructor::*;
950 DepNode::new(tcx, $node(*key))
954 fn compute(tcx: TyCtxt<'_, 'tcx, '_>, key: Self::Key) -> Self::Value {
955 __query_compute::$name(move || {
956 let provider = tcx.queries.providers.get(key.query_crate())
957 // HACK(eddyb) it's possible crates may be loaded after
958 // the query engine is created, and because crate loading
959 // is not yet integrated with the query engine, such crates
960 // would be missing appropriate entries in `providers`.
961 .unwrap_or(&tcx.queries.fallback_extern_providers)
963 provider(tcx.global_tcx(), key)
968 _hcx: &mut StableHashingContext<'_>,
969 _result: &Self::Value
970 ) -> Option<Fingerprint> {
971 hash_result!([$($modifiers)*][_hcx, _result])
974 fn handle_cycle_error(
975 tcx: TyCtxt<'_, 'tcx, '_>,
976 error: CycleError<'tcx>
978 handle_cycle_error!([$($modifiers)*][tcx, error])
982 #[derive(Copy, Clone)]
983 pub struct TyCtxtEnsure<'a, 'gcx: 'a+'tcx, 'tcx: 'a> {
984 pub tcx: TyCtxt<'a, 'gcx, 'tcx>,
987 impl<'a, $tcx, 'lcx> TyCtxtEnsure<'a, $tcx, 'lcx> {
990 pub fn $name(self, key: $K) {
991 self.tcx.ensure_query::<queries::$name<'_>>(key)
995 #[derive(Copy, Clone)]
996 pub struct TyCtxtAt<'a, 'gcx: 'a+'tcx, 'tcx: 'a> {
997 pub tcx: TyCtxt<'a, 'gcx, 'tcx>,
1001 impl<'a, 'gcx, 'tcx> Deref for TyCtxtAt<'a, 'gcx, 'tcx> {
1002 type Target = TyCtxt<'a, 'gcx, 'tcx>;
1004 fn deref(&self) -> &Self::Target {
1009 impl<'a, $tcx, 'lcx> TyCtxt<'a, $tcx, 'lcx> {
1010 /// Returns a transparent wrapper for `TyCtxt`, which ensures queries
1011 /// are executed instead of just returing their results.
1013 pub fn ensure(self) -> TyCtxtEnsure<'a, $tcx, 'lcx> {
1019 /// Returns a transparent wrapper for `TyCtxt` which uses
1020 /// `span` as the location of queries performed through it.
1022 pub fn at(self, span: Span) -> TyCtxtAt<'a, $tcx, 'lcx> {
1031 pub fn $name(self, key: $K) -> $V {
1032 self.at(DUMMY_SP).$name(key)
1036 impl<'a, $tcx, 'lcx> TyCtxtAt<'a, $tcx, 'lcx> {
1039 pub fn $name(self, key: $K) -> $V {
1040 self.tcx.get_query::<queries::$name<'_>>(self.span, key)
1044 define_provider_struct! {
1046 input: ($(([$($modifiers)*] [$name] [$K] [$V]))*)
1049 impl<$tcx> Copy for Providers<$tcx> {}
1050 impl<$tcx> Clone for Providers<$tcx> {
1051 fn clone(&self) -> Self { *self }
1056 macro_rules! define_queries_struct {
1058 input: ($(([$($modifiers:tt)*] [$($attr:tt)*] [$name:ident]))*)) => {
1059 pub struct Queries<$tcx> {
1060 /// This provides access to the incrimental comilation on-disk cache for query results.
1061 /// Do not access this directly. It is only meant to be used by
1062 /// `DepGraph::try_mark_green()` and the query infrastructure.
1063 pub(crate) on_disk_cache: OnDiskCache<'tcx>,
1065 providers: IndexVec<CrateNum, Providers<$tcx>>,
1066 fallback_extern_providers: Box<Providers<$tcx>>,
1068 $($(#[$attr])* $name: Lock<QueryCache<$tcx, queries::$name<$tcx>>>,)*
1073 macro_rules! define_provider_struct {
1075 input: ($(([$($modifiers:tt)*] [$name:ident] [$K:ty] [$R:ty]))*)) => {
1076 pub struct Providers<$tcx> {
1077 $(pub $name: for<'a> fn(TyCtxt<'a, $tcx, $tcx>, $K) -> $R,)*
1080 impl<$tcx> Default for Providers<$tcx> {
1081 fn default() -> Self {
1082 $(fn $name<'a, $tcx>(_: TyCtxt<'a, $tcx, $tcx>, key: $K) -> $R {
1083 bug!("tcx.{}({:?}) unsupported by its crate",
1084 stringify!($name), key);
1086 Providers { $($name),* }
1093 /// The red/green evaluation system will try to mark a specific DepNode in the
1094 /// dependency graph as green by recursively trying to mark the dependencies of
1095 /// that DepNode as green. While doing so, it will sometimes encounter a DepNode
1096 /// where we don't know if it is red or green and we therefore actually have
1097 /// to recompute its value in order to find out. Since the only piece of
1098 /// information that we have at that point is the DepNode we are trying to
1099 /// re-evaluate, we need some way to re-run a query from just that. This is what
1100 /// `force_from_dep_node()` implements.
1102 /// In the general case, a DepNode consists of a DepKind and an opaque
1103 /// GUID/fingerprint that will uniquely identify the node. This GUID/fingerprint
1104 /// is usually constructed by computing a stable hash of the query-key that the
1105 /// DepNode corresponds to. Consequently, it is not in general possible to go
1106 /// back from hash to query-key (since hash functions are not reversible). For
1107 /// this reason `force_from_dep_node()` is expected to fail from time to time
1108 /// because we just cannot find out, from the DepNode alone, what the
1109 /// corresponding query-key is and therefore cannot re-run the query.
1111 /// The system deals with this case letting `try_mark_green` fail which forces
1112 /// the root query to be re-evaluated.
1114 /// Now, if force_from_dep_node() would always fail, it would be pretty useless.
1115 /// Fortunately, we can use some contextual information that will allow us to
1116 /// reconstruct query-keys for certain kinds of `DepNode`s. In particular, we
1117 /// enforce by construction that the GUID/fingerprint of certain `DepNode`s is a
1118 /// valid `DefPathHash`. Since we also always build a huge table that maps every
1119 /// `DefPathHash` in the current codebase to the corresponding `DefId`, we have
1120 /// everything we need to re-run the query.
1122 /// Take the `mir_validated` query as an example. Like many other queries, it
1123 /// just has a single parameter: the `DefId` of the item it will compute the
1124 /// validated MIR for. Now, when we call `force_from_dep_node()` on a `DepNode`
1125 /// with kind `MirValidated`, we know that the GUID/fingerprint of the `DepNode`
1126 /// is actually a `DefPathHash`, and can therefore just look up the corresponding
1127 /// `DefId` in `tcx.def_path_hash_to_def_id`.
1129 /// When you implement a new query, it will likely have a corresponding new
1130 /// `DepKind`, and you'll have to support it here in `force_from_dep_node()`. As
1131 /// a rule of thumb, if your query takes a `DefId` or `DefIndex` as sole parameter,
1132 /// then `force_from_dep_node()` should not fail for it. Otherwise, you can just
1133 /// add it to the "We don't have enough information to reconstruct..." group in
1134 /// the match below.
1135 pub fn force_from_dep_node<'a, 'gcx, 'lcx>(tcx: TyCtxt<'a, 'gcx, 'lcx>,
1138 use crate::hir::def_id::LOCAL_CRATE;
1140 // We must avoid ever having to call force_from_dep_node() for a
1141 // DepNode::CodegenUnit:
1142 // Since we cannot reconstruct the query key of a DepNode::CodegenUnit, we
1143 // would always end up having to evaluate the first caller of the
1144 // `codegen_unit` query that *is* reconstructible. This might very well be
1145 // the `compile_codegen_unit` query, thus re-codegenning the whole CGU just
1146 // to re-trigger calling the `codegen_unit` query with the right key. At
1147 // that point we would already have re-done all the work we are trying to
1148 // avoid doing in the first place.
1149 // The solution is simple: Just explicitly call the `codegen_unit` query for
1150 // each CGU, right after partitioning. This way `try_mark_green` will always
1151 // hit the cache instead of having to go through `force_from_dep_node`.
1152 // This assertion makes sure, we actually keep applying the solution above.
1153 debug_assert!(dep_node.kind != DepKind::CodegenUnit,
1154 "calling force_from_dep_node() on DepKind::CodegenUnit");
1156 if !dep_node.kind.can_reconstruct_query_key() {
1160 macro_rules! def_id {
1162 if let Some(def_id) = dep_node.extract_def_id(tcx) {
1165 // return from the whole function
1171 macro_rules! krate {
1172 () => { (def_id!()).krate }
1175 macro_rules! force {
1176 ($query:ident, $key:expr) => {
1178 tcx.force_query::<crate::ty::query::queries::$query<'_>>($key, DUMMY_SP, *dep_node);
1183 // FIXME(#45015): We should try move this boilerplate code into a macro
1185 match dep_node.kind {
1186 // These are inputs that are expected to be pre-allocated and that
1187 // should therefore always be red or green already
1188 DepKind::AllLocalTraitImpls |
1190 DepKind::CrateMetadata |
1194 // This are anonymous nodes
1195 DepKind::TraitSelect |
1197 // We don't have enough information to reconstruct the query key of
1202 DepKind::NeedsDrop |
1204 DepKind::ConstEval |
1205 DepKind::ConstEvalRaw |
1206 DepKind::InstanceSymbolName |
1208 DepKind::BorrowCheckKrate |
1209 DepKind::Specializes |
1210 DepKind::ImplementationsOfTrait |
1211 DepKind::TypeParamPredicates |
1212 DepKind::CodegenUnit |
1213 DepKind::CompileCodegenUnit |
1214 DepKind::FulfillObligation |
1215 DepKind::VtableMethods |
1216 DepKind::EraseRegionsTy |
1217 DepKind::NormalizeProjectionTy |
1218 DepKind::NormalizeTyAfterErasingRegions |
1219 DepKind::ImpliedOutlivesBounds |
1220 DepKind::DropckOutlives |
1221 DepKind::EvaluateObligation |
1222 DepKind::EvaluateGoal |
1223 DepKind::TypeOpAscribeUserType |
1225 DepKind::TypeOpSubtype |
1226 DepKind::TypeOpProvePredicate |
1227 DepKind::TypeOpNormalizeTy |
1228 DepKind::TypeOpNormalizePredicate |
1229 DepKind::TypeOpNormalizePolyFnSig |
1230 DepKind::TypeOpNormalizeFnSig |
1231 DepKind::SubstituteNormalizeAndTestPredicates |
1232 DepKind::MethodAutoderefSteps |
1233 DepKind::InstanceDefSizeEstimate |
1234 DepKind::ProgramClausesForEnv |
1236 // This one should never occur in this context
1238 bug!("force_from_dep_node() - Encountered {:?}", dep_node)
1241 // These are not queries
1242 DepKind::CoherenceCheckTrait |
1243 DepKind::ItemVarianceConstraints => {
1247 DepKind::RegionScopeTree => { force!(region_scope_tree, def_id!()); }
1249 DepKind::Coherence => { force!(crate_inherent_impls, LOCAL_CRATE); }
1250 DepKind::CoherenceInherentImplOverlapCheck => {
1251 force!(crate_inherent_impls_overlap_check, LOCAL_CRATE)
1253 DepKind::PrivacyAccessLevels => { force!(privacy_access_levels, LOCAL_CRATE); }
1254 DepKind::MirBuilt => { force!(mir_built, def_id!()); }
1255 DepKind::MirConstQualif => { force!(mir_const_qualif, def_id!()); }
1256 DepKind::MirConst => { force!(mir_const, def_id!()); }
1257 DepKind::MirValidated => { force!(mir_validated, def_id!()); }
1258 DepKind::MirOptimized => { force!(optimized_mir, def_id!()); }
1260 DepKind::BorrowCheck => { force!(borrowck, def_id!()); }
1261 DepKind::MirBorrowCheck => { force!(mir_borrowck, def_id!()); }
1262 DepKind::UnsafetyCheckResult => { force!(unsafety_check_result, def_id!()); }
1263 DepKind::UnsafeDeriveOnReprPacked => { force!(unsafe_derive_on_repr_packed, def_id!()); }
1264 DepKind::CheckModAttrs => { force!(check_mod_attrs, def_id!()); }
1265 DepKind::CheckModLoops => { force!(check_mod_loops, def_id!()); }
1266 DepKind::CheckModUnstableApiUsage => { force!(check_mod_unstable_api_usage, def_id!()); }
1267 DepKind::CheckModItemTypes => { force!(check_mod_item_types, def_id!()); }
1268 DepKind::CheckModPrivacy => { force!(check_mod_privacy, def_id!()); }
1269 DepKind::CheckModIntrinsics => { force!(check_mod_intrinsics, def_id!()); }
1270 DepKind::CheckModLiveness => { force!(check_mod_liveness, def_id!()); }
1271 DepKind::CheckModImplWf => { force!(check_mod_impl_wf, def_id!()); }
1272 DepKind::CollectModItemTypes => { force!(collect_mod_item_types, def_id!()); }
1273 DepKind::Reachability => { force!(reachable_set, LOCAL_CRATE); }
1274 DepKind::MirKeys => { force!(mir_keys, LOCAL_CRATE); }
1275 DepKind::CrateVariances => { force!(crate_variances, LOCAL_CRATE); }
1276 DepKind::AssociatedItems => { force!(associated_item, def_id!()); }
1277 DepKind::TypeOfItem => { force!(type_of, def_id!()); }
1278 DepKind::GenericsOfItem => { force!(generics_of, def_id!()); }
1279 DepKind::PredicatesOfItem => { force!(predicates_of, def_id!()); }
1280 DepKind::PredicatesDefinedOnItem => { force!(predicates_defined_on, def_id!()); }
1281 DepKind::ExplicitPredicatesOfItem => { force!(explicit_predicates_of, def_id!()); }
1282 DepKind::InferredOutlivesOf => { force!(inferred_outlives_of, def_id!()); }
1283 DepKind::InferredOutlivesCrate => { force!(inferred_outlives_crate, LOCAL_CRATE); }
1284 DepKind::SuperPredicatesOfItem => { force!(super_predicates_of, def_id!()); }
1285 DepKind::TraitDefOfItem => { force!(trait_def, def_id!()); }
1286 DepKind::AdtDefOfItem => { force!(adt_def, def_id!()); }
1287 DepKind::ImplTraitRef => { force!(impl_trait_ref, def_id!()); }
1288 DepKind::ImplPolarity => { force!(impl_polarity, def_id!()); }
1289 DepKind::Issue33140SelfTy => { force!(issue33140_self_ty, def_id!()); }
1290 DepKind::FnSignature => { force!(fn_sig, def_id!()); }
1291 DepKind::CoerceUnsizedInfo => { force!(coerce_unsized_info, def_id!()); }
1292 DepKind::ItemVariances => { force!(variances_of, def_id!()); }
1293 DepKind::IsConstFn => { force!(is_const_fn_raw, def_id!()); }
1294 DepKind::IsPromotableConstFn => { force!(is_promotable_const_fn, def_id!()); }
1295 DepKind::IsForeignItem => { force!(is_foreign_item, def_id!()); }
1296 DepKind::SizedConstraint => { force!(adt_sized_constraint, def_id!()); }
1297 DepKind::DtorckConstraint => { force!(adt_dtorck_constraint, def_id!()); }
1298 DepKind::AdtDestructor => { force!(adt_destructor, def_id!()); }
1299 DepKind::AssociatedItemDefIds => { force!(associated_item_def_ids, def_id!()); }
1300 DepKind::InherentImpls => { force!(inherent_impls, def_id!()); }
1301 DepKind::TypeckBodiesKrate => { force!(typeck_item_bodies, LOCAL_CRATE); }
1302 DepKind::TypeckTables => { force!(typeck_tables_of, def_id!()); }
1303 DepKind::UsedTraitImports => { force!(used_trait_imports, def_id!()); }
1304 DepKind::HasTypeckTables => { force!(has_typeck_tables, def_id!()); }
1305 DepKind::SymbolName => { force!(def_symbol_name, def_id!()); }
1306 DepKind::SpecializationGraph => { force!(specialization_graph_of, def_id!()); }
1307 DepKind::ObjectSafety => { force!(is_object_safe, def_id!()); }
1308 DepKind::TraitImpls => { force!(trait_impls_of, def_id!()); }
1309 DepKind::CheckMatch => { force!(check_match, def_id!()); }
1311 DepKind::ParamEnv => { force!(param_env, def_id!()); }
1312 DepKind::Environment => { force!(environment, def_id!()); }
1313 DepKind::DescribeDef => { force!(describe_def, def_id!()); }
1314 DepKind::DefSpan => { force!(def_span, def_id!()); }
1315 DepKind::LookupStability => { force!(lookup_stability, def_id!()); }
1316 DepKind::LookupDeprecationEntry => {
1317 force!(lookup_deprecation_entry, def_id!());
1319 DepKind::ConstIsRvaluePromotableToStatic => {
1320 force!(const_is_rvalue_promotable_to_static, def_id!());
1322 DepKind::RvaluePromotableMap => { force!(rvalue_promotable_map, def_id!()); }
1323 DepKind::ImplParent => { force!(impl_parent, def_id!()); }
1324 DepKind::TraitOfItem => { force!(trait_of_item, def_id!()); }
1325 DepKind::IsReachableNonGeneric => { force!(is_reachable_non_generic, def_id!()); }
1326 DepKind::IsUnreachableLocalDefinition => {
1327 force!(is_unreachable_local_definition, def_id!());
1329 DepKind::IsMirAvailable => { force!(is_mir_available, def_id!()); }
1330 DepKind::ItemAttrs => { force!(item_attrs, def_id!()); }
1331 DepKind::CodegenFnAttrs => { force!(codegen_fn_attrs, def_id!()); }
1332 DepKind::FnArgNames => { force!(fn_arg_names, def_id!()); }
1333 DepKind::RenderedConst => { force!(rendered_const, def_id!()); }
1334 DepKind::DylibDepFormats => { force!(dylib_dependency_formats, krate!()); }
1335 DepKind::IsPanicRuntime => { force!(is_panic_runtime, krate!()); }
1336 DepKind::IsCompilerBuiltins => { force!(is_compiler_builtins, krate!()); }
1337 DepKind::HasGlobalAllocator => { force!(has_global_allocator, krate!()); }
1338 DepKind::HasPanicHandler => { force!(has_panic_handler, krate!()); }
1339 DepKind::ExternCrate => { force!(extern_crate, def_id!()); }
1340 DepKind::LintLevels => { force!(lint_levels, LOCAL_CRATE); }
1341 DepKind::InScopeTraits => { force!(in_scope_traits_map, def_id!().index); }
1342 DepKind::ModuleExports => { force!(module_exports, def_id!()); }
1343 DepKind::IsSanitizerRuntime => { force!(is_sanitizer_runtime, krate!()); }
1344 DepKind::IsProfilerRuntime => { force!(is_profiler_runtime, krate!()); }
1345 DepKind::GetPanicStrategy => { force!(panic_strategy, krate!()); }
1346 DepKind::IsNoBuiltins => { force!(is_no_builtins, krate!()); }
1347 DepKind::ImplDefaultness => { force!(impl_defaultness, def_id!()); }
1348 DepKind::CheckItemWellFormed => { force!(check_item_well_formed, def_id!()); }
1349 DepKind::CheckTraitItemWellFormed => { force!(check_trait_item_well_formed, def_id!()); }
1350 DepKind::CheckImplItemWellFormed => { force!(check_impl_item_well_formed, def_id!()); }
1351 DepKind::ReachableNonGenerics => { force!(reachable_non_generics, krate!()); }
1352 DepKind::NativeLibraries => { force!(native_libraries, krate!()); }
1353 DepKind::EntryFn => { force!(entry_fn, krate!()); }
1354 DepKind::PluginRegistrarFn => { force!(plugin_registrar_fn, krate!()); }
1355 DepKind::ProcMacroDeclsStatic => { force!(proc_macro_decls_static, krate!()); }
1356 DepKind::CrateDisambiguator => { force!(crate_disambiguator, krate!()); }
1357 DepKind::CrateHash => { force!(crate_hash, krate!()); }
1358 DepKind::OriginalCrateName => { force!(original_crate_name, krate!()); }
1359 DepKind::ExtraFileName => { force!(extra_filename, krate!()); }
1360 DepKind::Analysis => { force!(analysis, krate!()); }
1362 DepKind::AllTraitImplementations => {
1363 force!(all_trait_implementations, krate!());
1366 DepKind::DllimportForeignItems => {
1367 force!(dllimport_foreign_items, krate!());
1369 DepKind::IsDllimportForeignItem => {
1370 force!(is_dllimport_foreign_item, def_id!());
1372 DepKind::IsStaticallyIncludedForeignItem => {
1373 force!(is_statically_included_foreign_item, def_id!());
1375 DepKind::NativeLibraryKind => { force!(native_library_kind, def_id!()); }
1376 DepKind::LinkArgs => { force!(link_args, LOCAL_CRATE); }
1378 DepKind::ResolveLifetimes => { force!(resolve_lifetimes, krate!()); }
1379 DepKind::NamedRegion => { force!(named_region_map, def_id!().index); }
1380 DepKind::IsLateBound => { force!(is_late_bound_map, def_id!().index); }
1381 DepKind::ObjectLifetimeDefaults => {
1382 force!(object_lifetime_defaults_map, def_id!().index);
1385 DepKind::Visibility => { force!(visibility, def_id!()); }
1386 DepKind::DepKind => { force!(dep_kind, krate!()); }
1387 DepKind::CrateName => { force!(crate_name, krate!()); }
1388 DepKind::ItemChildren => { force!(item_children, def_id!()); }
1389 DepKind::ExternModStmtCnum => { force!(extern_mod_stmt_cnum, def_id!()); }
1390 DepKind::GetLibFeatures => { force!(get_lib_features, LOCAL_CRATE); }
1391 DepKind::DefinedLibFeatures => { force!(defined_lib_features, krate!()); }
1392 DepKind::GetLangItems => { force!(get_lang_items, LOCAL_CRATE); }
1393 DepKind::DefinedLangItems => { force!(defined_lang_items, krate!()); }
1394 DepKind::MissingLangItems => { force!(missing_lang_items, krate!()); }
1395 DepKind::VisibleParentMap => { force!(visible_parent_map, LOCAL_CRATE); }
1396 DepKind::MissingExternCrateItem => {
1397 force!(missing_extern_crate_item, krate!());
1399 DepKind::UsedCrateSource => { force!(used_crate_source, krate!()); }
1400 DepKind::PostorderCnums => { force!(postorder_cnums, LOCAL_CRATE); }
1402 DepKind::Freevars => { force!(freevars, def_id!()); }
1403 DepKind::MaybeUnusedTraitImport => {
1404 force!(maybe_unused_trait_import, def_id!());
1406 DepKind::NamesImportedByGlobUse => { force!(names_imported_by_glob_use, def_id!()); }
1407 DepKind::MaybeUnusedExternCrates => { force!(maybe_unused_extern_crates, LOCAL_CRATE); }
1408 DepKind::StabilityIndex => { force!(stability_index, LOCAL_CRATE); }
1409 DepKind::AllTraits => { force!(all_traits, LOCAL_CRATE); }
1410 DepKind::AllCrateNums => { force!(all_crate_nums, LOCAL_CRATE); }
1411 DepKind::ExportedSymbols => { force!(exported_symbols, krate!()); }
1412 DepKind::CollectAndPartitionMonoItems => {
1413 force!(collect_and_partition_mono_items, LOCAL_CRATE);
1415 DepKind::IsCodegenedItem => { force!(is_codegened_item, def_id!()); }
1416 DepKind::OutputFilenames => { force!(output_filenames, LOCAL_CRATE); }
1418 DepKind::TargetFeaturesWhitelist => { force!(target_features_whitelist, LOCAL_CRATE); }
1420 DepKind::Features => { force!(features_query, LOCAL_CRATE); }
1422 DepKind::ProgramClausesFor => { force!(program_clauses_for, def_id!()); }
1423 DepKind::WasmImportModuleMap => { force!(wasm_import_module_map, krate!()); }
1424 DepKind::ForeignModules => { force!(foreign_modules, krate!()); }
1426 DepKind::UpstreamMonomorphizations => {
1427 force!(upstream_monomorphizations, krate!());
1429 DepKind::UpstreamMonomorphizationsFor => {
1430 force!(upstream_monomorphizations_for, def_id!());
1432 DepKind::BackendOptimizationLevel => {
1433 force!(backend_optimization_level, krate!());
1441 // FIXME(#45015): Another piece of boilerplate code that could be generated in
1442 // a combined define_dep_nodes!()/define_queries!() macro.
1443 macro_rules! impl_load_from_cache {
1444 ($($dep_kind:ident => $query_name:ident,)*) => {
1446 // Check whether the query invocation corresponding to the given
1447 // DepNode is eligible for on-disk-caching.
1448 pub fn cache_on_disk(&self, tcx: TyCtxt<'_, '_, '_>) -> bool {
1449 use crate::ty::query::queries;
1450 use crate::ty::query::QueryDescription;
1453 $(DepKind::$dep_kind => {
1454 let def_id = self.extract_def_id(tcx).unwrap();
1455 queries::$query_name::cache_on_disk(tcx.global_tcx(), def_id)
1461 // This is method will execute the query corresponding to the given
1462 // DepNode. It is only expected to work for DepNodes where the
1463 // above `cache_on_disk` methods returns true.
1464 // Also, as a sanity check, it expects that the corresponding query
1465 // invocation has been marked as green already.
1466 pub fn load_from_on_disk_cache(&self, tcx: TyCtxt<'_, '_, '_>) {
1468 $(DepKind::$dep_kind => {
1469 debug_assert!(tcx.dep_graph
1471 .map(|c| c.is_green())
1474 let def_id = self.extract_def_id(tcx).unwrap();
1475 let _ = tcx.$query_name(def_id);
1486 impl_load_from_cache!(
1487 TypeckTables => typeck_tables_of,
1488 MirOptimized => optimized_mir,
1489 UnsafetyCheckResult => unsafety_check_result,
1490 BorrowCheck => borrowck,
1491 MirBorrowCheck => mir_borrowck,
1492 MirConstQualif => mir_const_qualif,
1493 SymbolName => def_symbol_name,
1494 ConstIsRvaluePromotableToStatic => const_is_rvalue_promotable_to_static,
1495 CheckMatch => check_match,
1496 TypeOfItem => type_of,
1497 GenericsOfItem => generics_of,
1498 PredicatesOfItem => predicates_of,
1499 UsedTraitImports => used_trait_imports,
1500 CodegenFnAttrs => codegen_fn_attrs,
1501 SpecializationGraph => specialization_graph_of,