Enum CapabilityError 

pub enum CapabilityError {
    OperationOutOfScope {
        operation: &'static str,
        facet: String,
        medium_type: String,
    },
    GlobDenyIllegal {
        facet: String,
        medium_type: String,
        anchor_namespace: &'static str,
    },
    PreparationUnsupported {
        facet: String,
        preparation: String,
        impl_version: u32,
    },
    PruneGuaranteeUnsupported {
        facet: String,
        medium_type: String,
        requested: &'static str,
        supported: &'static str,
    },
}

A validation-time capability refusal (D6). Sibling to crate::ingest::resolve::ResolveError (which refuses dangling references); this refuses declared operations a medium cannot support. Every refusal names the offending facet/medium so it is diagnosable without re-reading the store.

Variants

OperationOutOfScope

A sync / verify operation is declared over a medium that cannot support it this cycle (a web medium — operator decision 7). The out-of-scope statement is said out loud, never a silent mtime-over-URL.

Fields

operation: &'static str

The offending operation.

facet: String

The source facet.

medium_type: String

The medium type that cannot support the operation.

GlobDenyIllegal

Glob deny_paths are declared over a medium whose namespace is not path-shaped (graph, web) — a glob cannot select in that namespace.

Fields

facet: String

The source facet.

medium_type: String

The medium type whose namespace is not path-shaped.

anchor_namespace: &'static str

That medium’s anchor namespace.

PreparationUnsupported

A facet declares a deterministic preparation step. No preparation implementation exists (PREPARATION_IMPL_VERSION is 0), so any declared preparation is unsupported — refused at validation time, not only at render time.

Fields

facet: String

The source facet.

preparation: String

The declared preparation identifier.

impl_version: u32

The current preparation-implementation version (0 = none).

PruneGuaranteeUnsupported

The binding requests a prune guarantee the facet’s medium cannot support (F1) — never-clobber over a medium whose base leg is not retrievable (web). Refused at binding-validation time with the downgrade remedy, never discovered at run time.

Fields

facet: String

The source facet.

medium_type: String

The medium type that cannot support the requested guarantee.

requested: &'static str

The requested guarantee wire string.

supported: &'static str

The strongest guarantee this medium supports (the downgrade remedy).

Trait Implementations

impl Clone for CapabilityError

fn clone(&self) -> CapabilityError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CapabilityError

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

Formats the value using the given formatter.

impl Display for CapabilityError

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

Formats the value using the given formatter.

impl Eq for CapabilityError

impl Error for CapabilityError

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.

impl PartialEq for CapabilityError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for CapabilityError