Enum SnapshotReadError 

pub enum SnapshotReadError {
    RequestMismatch,
    ContextMismatch(&'static str),
    TargetMismatch,
    ControllersUnobserved,
    CallerCannotRead,
    ObservationLimitExceeded {
        limit: u32,
        reported: u32,
    },
}

Typed denial; no error alters consumption or admits any paid effect.

Variants

RequestMismatch

Current original intent/operation/read-payload/challenge/ceiling differs.

ContextMismatch(&'static str)

Actually observed context differs.

TargetMismatch

Actually observed physical target differs.

ControllersUnobserved

No public/viewer path applies and controller evidence is unobserved.

CallerCannotRead

Exact original caller is neither a known controller nor an admitted viewer.

ObservationLimitExceeded

Actual call reporting exceeds the descriptive invocation ceiling.

Fields

limit: u32

Original descriptive ceiling, not spending authority.

reported: u32

Reported actual calls.

Trait Implementations

impl Debug for SnapshotReadError

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

Formats the value using the given formatter.

impl Display for SnapshotReadError

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

Formats the value using the given formatter.

impl Eq for SnapshotReadError

impl Error for SnapshotReadError

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 SnapshotReadError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SnapshotReadError