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pub mod debug;
mod dep_node;
mod graph;
mod prev;
mod query;
mod serialized;
pub use dep_node::{DepNode, DepNodeParams, WorkProductId};
pub use graph::WorkProductFileKind;
pub use graph::{hash_result, DepGraph, DepNodeColor, DepNodeIndex, TaskDeps, WorkProduct};
pub use prev::PreviousDepGraph;
pub use query::DepGraphQuery;
pub use serialized::{SerializedDepGraph, SerializedDepNodeIndex};
use rustc_data_structures::profiling::SelfProfilerRef;
use rustc_data_structures::sync::Lock;
use rustc_data_structures::thin_vec::ThinVec;
use rustc_errors::Diagnostic;
use std::fmt;
use std::hash::Hash;
pub trait DepContext: Copy {
type DepKind: self::DepKind;
type StableHashingContext;
/// Create a hashing context for hashing new results.
fn create_stable_hashing_context(&self) -> Self::StableHashingContext;
fn debug_dep_tasks(&self) -> bool;
fn debug_dep_node(&self) -> bool;
/// Try to force a dep node to execute and see if it's green.
fn try_force_from_dep_node(&self, dep_node: &DepNode<Self::DepKind>) -> bool;
/// Return whether the current session is tainted by errors.
fn has_errors_or_delayed_span_bugs(&self) -> bool;
/// Return the diagnostic handler.
fn diagnostic(&self) -> &rustc_errors::Handler;
/// Load data from the on-disk cache.
fn try_load_from_on_disk_cache(&self, dep_node: &DepNode<Self::DepKind>);
/// Load diagnostics associated to the node in the previous session.
fn load_diagnostics(&self, prev_dep_node_index: SerializedDepNodeIndex) -> Vec<Diagnostic>;
/// Register diagnostics for the given node, for use in next session.
fn store_diagnostics(&self, dep_node_index: DepNodeIndex, diagnostics: ThinVec<Diagnostic>);
/// Register diagnostics for the given node, for use in next session.
fn store_diagnostics_for_anon_node(
&self,
dep_node_index: DepNodeIndex,
diagnostics: ThinVec<Diagnostic>,
);
/// Access the profiler.
fn profiler(&self) -> &SelfProfilerRef;
}
/// Describe the different families of dependency nodes.
pub trait DepKind: Copy + fmt::Debug + Eq + Ord + Hash {
const NULL: Self;
/// Return whether this kind always require evaluation.
fn is_eval_always(&self) -> bool;
/// Return whether this kind requires additional parameters to be executed.
fn has_params(&self) -> bool;
/// Implementation of `std::fmt::Debug` for `DepNode`.
fn debug_node(node: &DepNode<Self>, f: &mut fmt::Formatter<'_>) -> fmt::Result;
/// Execute the operation with provided dependencies.
fn with_deps<OP, R>(deps: Option<&Lock<TaskDeps<Self>>>, op: OP) -> R
where
OP: FnOnce() -> R;
/// Access dependencies from current implicit context.
fn read_deps<OP>(op: OP) -> ()
where
OP: for<'a> FnOnce(Option<&'a Lock<TaskDeps<Self>>>) -> ();
fn can_reconstruct_query_key(&self) -> bool;
}
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