Crate rustc_query_impl 

Support for serializing the dep-graph and reloading it.

Modules

_dep_kind_vtable_ctors_for_queries 🔒

Declares a dep-kind vtable constructor for each query.

dep_kind_vtables 🔒

error 🔒

execution 🔒

job 🔒

plumbing 🔒

The implementation of the query system itself. This defines the macros that generate the actual methods on tcx which find and execute the provider, manage the caches, and so forth.

profiling_support 🔒

query_impl 🔒

values 🔒

Structs

QueryFlags 🔒

QueryJobMap

Map from query job IDs to job information collected by collect_active_jobs_from_all_queries.

SemiDynamicQueryDispatcher 🔒

Combines a QueryVTable with some additional compile-time booleans. “Dispatcher” should be understood as a near-synonym of “vtable”.

Constants

ALLOC_SELF_PROFILE_QUERY_STRINGS 🔒

ENCODE_QUERY_RESULTS 🔒

PER_QUERY_GATHER_ACTIVE_JOBS_FNS 🔒

Used by collect_active_jobs_from_all_queries to iterate over all queries, and gather the active jobs for each query.

QUERY_KEY_HASH_VERIFY 🔒

Traits

QueryDispatcherUnerased 🔒

Provides access to vtable-like operations for a query (by creating a SemiDynamicQueryDispatcher), but also keeps track of the “unerased” value type of the query (i.e. the actual result type in the query declaration).

Functions

alloc_self_profile_query_strings

All self-profiling events generated by the query engine use virtual StringIds for their event_id. This method makes all those virtual StringIds point to actual strings.

break_query_cycles

Detects query cycles by using depth first search over all active query jobs. If a query cycle is found it will break the cycle by finding an edge which uses a query latch and then resuming that waiter. There may be multiple cycles involved in a deadlock, so this searches all active queries for cycles before finally resuming all the waiters at once.

collect_active_jobs_from_all_queries

Returns a map of currently active query jobs, collected from all queries.

engine 🔒

make_dep_kind_vtables

make_query_vtables

print_query_stack

provide

query_key_hash_verify_all

query_system