Enum rustc_data_structures::obligation_forest::NodeState

enum NodeState {
    Pending,
    Success,
    Waiting,
    Done,
    Error,
    OnDfsStack,
}

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

The state of one node in some tree within the forest. This represents the current state of processing for the obligation (of type O) associated with this node.

Outside of ObligationForest methods, nodes should be either Pending or Waiting.

Variants

Pending

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Obligations for which selection had not yet returned a non-ambiguous result.

Success

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

This obligation was selected successfully, but may or may not have subobligations.

Waiting

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

This obligation was selected successfully, but it has a pending subobligation.

Done

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

This obligation, along with its subobligations, are complete, and will be removed in the next collection.

Error

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

This obligation was resolved to an error. Error nodes are removed from the vector by the compression step.

OnDfsStack

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

This is a temporary state used in DFS loops to detect cycles, it should not exist outside of these DFSes.

Trait Implementations

impl Debug for NodeState

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

Formats the value using the given formatter.

impl Copy for NodeState

impl Clone for NodeState

fn clone(&self) -> NodeState

Returns a copy of the value.

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

Performs copy-assignment from source.

impl PartialEq for NodeState

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

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

#[must_use] fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl Eq for NodeState

fn assert_receiver_is_total_eq(&self)