Struct rustc_middle::dep_graph::dep_node::DepNode

pub struct DepNode {
    pub kind: DepKind,
    pub hash: PackedFingerprint,
}

Fields

kind: DepKind

hash: PackedFingerprint

Implementations

impl DepNode

pub fn new_no_params<Tcx>(tcx: Tcx, kind: DepKind) -> DepNode

where Tcx: DepContext,

Creates a new, parameterless DepNode. This method will assert that the DepNode corresponding to the given DepKind actually does not require any parameters.

pub fn construct<Tcx, Key>(tcx: Tcx, kind: DepKind, arg: &Key) -> DepNode

where Tcx: DepContext, Key: DepNodeParams<Tcx>,

pub fn from_def_path_hash<Tcx>( tcx: Tcx, def_path_hash: DefPathHash, kind: DepKind, ) -> DepNode

where Tcx: DepContext,

Construct a DepNode from the given DepKind and DefPathHash. This method will assert that the given DepKind actually requires a single DefId/DefPathHash parameter.

Trait Implementations

impl Clone for DepNode

fn clone(&self) -> DepNode

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for DepNode

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl DepNodeExt for DepNode

fn extract_def_id(&self, tcx: TyCtxt<'_>) -> Option<DefId>

Extracts the DefId corresponding to this DepNode. This will work if two conditions are met:

1. The Fingerprint of the DepNode actually is a DefPathHash, and
2. the item that the DefPath refers to exists in the current tcx.

Condition (1) is determined by the DepKind variant of the DepNode. Condition (2) might not be fulfilled if a DepNode refers to something from the previous compilation session that has been removed.

fn from_label_string( tcx: TyCtxt<'_>, label: &str, def_path_hash: DefPathHash, ) -> Result<DepNode, ()>

Used in testing

fn has_label_string(label: &str) -> bool

Used in testing

impl Hash for DepNode

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for DepNode

fn eq(&self, other: &DepNode) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for DepNode

impl Eq for DepNode

impl StructuralPartialEq for DepNode

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: 18 bytes