Enum GraphBuildError 

pub enum GraphBuildError {
    RootTargetMismatch,
    SnapshotFingerprintMismatch,
    MissingUnitBinding {
        unit: u32,
    },
    DanglingUnitBinding {
        unit: u32,
    },
    SharedUnitBinding {
        held: u32,
        unit: u32,
    },
    MissingDependencyUnit {
        edge: u32,
        alias: Box<str>,
    },
    MissingSourceNode {
        unit: u32,
        path: Box<str>,
    },
    RepeatedUnitSource {
        unit: u32,
        path: Box<str>,
    },
    ReferenceRecordMismatch {
        references: u32,
        records: u32,
    },
    MissingDefinitionNode {
        definition: u32,
    },
    MissingReferenceRecord {
        reference: u32,
    },
    UnknownContainmentNode {
        node: u32,
    },
    MultiplyContained {
        parent: u32,
        child: u32,
    },
    UnparentedNode {
        node: u32,
    },
    RootHasParent {
        root: u32,
        parent: u32,
    },
    ContainmentCycle {
        node: u32,
    },
    CapacityExceeded {
        collection: GraphCollection,
        limit: u32,
    },
}

A refusal taken while projecting one resolution into a graph.

Variants

RootTargetMismatch

The supplied snapshot and resolution were requested for other targets.

SnapshotFingerprintMismatch

The supplied snapshot is not the one the resolution was validated against, even though both name the same root target.

MissingUnitBinding

A report unit has no graph container, or no source scope beneath one.

Fields

unit: u32

The report-local unit identifier that no binding answers for.

DanglingUnitBinding

A report unit is bound to a build unit the supplied snapshot does not hold, which is a binding that names nothing rather than a missing one.

Fields

unit: u32

The report-local unit identifier whose binding names nothing.

SharedUnitBinding

Two report units are bound to one build unit, so one unit-qualified source would have two owners.

Fields

held: u32

The report-local unit identifier that bound the build unit first.

unit: u32

The report-local unit identifier that bound it again.

MissingDependencyUnit

A snapshot dependency edge names a build unit with no graph container.

Fields

edge: u32

The edge’s position among the snapshot’s dependency edges.

alias: Box<str>

The namespace-local name that edge declares its target under.

MissingSourceNode

A stated site names a source the bound unit does not instantiate.

Fields

unit: u32

The report-local unit identifier the site belongs to.

path: Box<str>

The normalized repository-relative path the site named.

RepeatedUnitSource

One report unit instantiates one normalized path twice, so a second file node would be minted for a source that already holds one.

Fields

unit: u32

The report-local unit identifier that instantiates it twice.

path: Box<str>

The normalized repository-relative path stated more than once.

ReferenceRecordMismatch

The report states a different number of references and resolution records, so no pairing between them is stated at all.

Fields

references: u32

How many references the report states.

records: u32

How many resolution records the report states.

MissingDefinitionNode

A stated join names a definition this graph holds no node for.

Fields

definition: u32

The report-local definition identifier that named nothing.

MissingReferenceRecord

An edge was produced for a reference record this graph does not hold.

Fields

reference: u32

The reference identity that answers for no record.

UnknownContainmentNode

A containment edge names a node this graph holds no record for.

Fields

node: u32

The node identity the containment relation named.

MultiplyContained

One node is contained by more than one parent.

Fields

parent: u32

One parent the child is contained by.

child: u32

The multiply-contained child.

UnparentedNode

One node below the unit roots is contained by nothing.

Fields

node: u32

The node no containment edge claims.

RootHasParent

One unit root is contained by another node.

Fields

root: u32

The unit root that must own itself.

parent: u32

The node that claims it.

ContainmentCycle

One containment chain returns to a node it already visited.

Fields

node: u32

The node the chain returned to.

CapacityExceeded

One collection reached its configured ceiling.

Fields

collection: GraphCollection

Which collection refused the insertion.

limit: u32

The ceiling that collection is bounded by.

Trait Implementations

impl Debug for GraphBuildError

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

Formats the value using the given formatter.

impl Display for GraphBuildError

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

Formats the value using the given formatter.

impl Error for GraphBuildError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

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

Provides type-based access to context intended for error reports.