Struct QueryCtxt 

pub struct QueryCtxt<'tcx> {
    pub tcx: TyCtxt<'tcx>,
}

Implements QueryContext for use by rustc_query_system, since that crate does not have direct access to [TyCtxt].

Fields

tcx: TyCtxt<'tcx>

Implementations

impl<'tcx> QueryCtxt<'tcx>

pub fn new(tcx: TyCtxt<'tcx>) -> Self

fn depth_limit_error(self, job: QueryJobId)

Trait Implementations

impl<'tcx> Clone for QueryCtxt<'tcx>

fn clone(&self) -> QueryCtxt<'tcx>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'tcx> HasDepContext for QueryCtxt<'tcx>

type Deps = DepsType

type DepContext = TyCtxt<'tcx>

fn dep_context(&self) -> &Self::DepContext

impl<'tcx> QueryContext<'tcx> for QueryCtxt<'tcx>

fn collect_active_jobs_from_all_queries( self, require_complete: bool, ) -> Result<QueryMap<'tcx>, QueryMap<'tcx>>

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

If require_complete is true, this function locks all shards of the query results to produce a complete map, which always returns Ok. Otherwise, it may return an incomplete map as an error if any shard lock cannot be acquired.

Prefer passing false to require_complete to avoid potential deadlocks, especially when called from within a deadlock handler, unless a complete map is needed and no deadlock is possible at this call site.

fn start_query<R>( self, token: QueryJobId, depth_limit: bool, compute: impl FnOnce() -> R, ) -> R

Executes a job by changing the ImplicitCtxt to point to the new query job while it executes.

fn jobserver_proxy(&self) -> &Proxy

Gets a jobserver reference which is used to release then acquire a token while waiting on a query.

fn next_job_id(self) -> QueryJobId

fn current_query_job(self) -> Option<QueryJobId>

Get the query information from the TLS context.

fn load_side_effect( self, prev_dep_node_index: SerializedDepNodeIndex, ) -> Option<QuerySideEffect>

Load a side effect associated to the node in the previous session.

fn store_side_effect( self, dep_node_index: DepNodeIndex, side_effect: QuerySideEffect, )

Register a side effect for the given node, for use in next session.

impl<'tcx> Copy for QueryCtxt<'tcx>

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 8 bytes