Struct rustc::dep_graph::DepNode

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

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Fields

kind: DepKind

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hash: Fingerprint

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Methods

impl DepNode

pub fn new<'a, 'gcx, 'tcx>(
    tcx: TyCtxt<'a, 'gcx, 'tcx>,
    dep: DepConstructor<'gcx>
) -> DepNode where
    'gcx: 'a + 'tcx,
    'tcx: 'a, 

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

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

pub fn new_no_params(kind: DepKind) -> DepNode

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

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

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Extract 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.

pub fn from_label_string(
    label: &str,
    def_path_hash: DefPathHash
) -> Result<DepNode, ()>

🔬 This is a nightly-only experimental API. (rustc_private)

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Used in testing

pub fn has_label_string(label: &str) -> bool

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Used in testing

impl DepNode

pub fn cache_on_disk(&self, tcx: TyCtxt) -> bool

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pub fn load_from_on_disk_cache(&self, tcx: TyCtxt)

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Trait Implementations

impl Debug for DepNode

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

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 Copy for DepNode

impl PartialEq for DepNode

fn eq(&self, __arg_0: &DepNode) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, __arg_0: &DepNode) -> bool

This method tests for !=.

impl Eq for DepNode

impl PartialOrd for DepNode

fn partial_cmp(&self, __arg_0: &DepNode) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, __arg_0: &DepNode) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, __arg_0: &DepNode) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, __arg_0: &DepNode) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, __arg_0: &DepNode) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Ord for DepNode

fn cmp(&self, __arg_0: &DepNode) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

impl Hash for DepNode

fn hash<__H: Hasher>(&self, __arg_0: &mut __H)

Feeds this value into the given [Hasher].

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

Feeds a slice of this type into the given [Hasher].

impl Encodable for DepNode

fn encode<__S: Encoder>(&self, __arg_0: &mut __S) -> Result<(), __S::Error>

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impl Decodable for DepNode

fn decode<__D: Decoder>(__arg_0: &mut __D) -> Result<DepNode, __D::Error>

🔬 This is a nightly-only experimental API. (rustc_private)

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