Enum NnsProposalError 

pub enum NnsProposalError {
    Governance(NnsGovernanceError),
    InvalidLimit {
        limit: u32,
        maximum: u32,
    },
    PageTooLarge {
        actual: usize,
        requested: u32,
    },
    MissingProposalIdInPage,
    InvalidProposalIdInPage,
    DuplicateProposalId {
        proposal_id: u64,
    },
    ProposalCursorMismatch {
        proposal_id: u64,
        before_proposal_id: u64,
    },
    ProposalNotFound {
        proposal_id: u64,
    },
    ProposalIdMismatch {
        expected: u64,
        actual: Option<u64>,
    },
    InvalidCollectionMaxPages,
    InvalidCollectionState {
        reason: String,
    },
    CollectionRequestMismatch {
        field: &'static str,
        expected: String,
        actual: String,
    },
    CollectionComplete {
        pages_fetched: u32,
    },
    CollectionPageLimitReached {
        pages_fetched: u32,
        max_pages: u32,
    },
    CollectionSourceChanged {
        expected: NnsGovernanceSourceProvenance,
        actual: NnsGovernanceSourceProvenance,
    },
    CollectionAccountingOverflow,
}

NnsProposalError

Portable failure returned while collecting or assembling proposal reports.

Variants

Governance(NnsGovernanceError)

Shared Governance request, transport, or provenance validation failed.

InvalidLimit

The requested page size is outside the bounded proposal contract.

Fields

limit: u32

maximum: u32

PageTooLarge

Governance returned more proposal rows than requested.

Fields

actual: usize

requested: u32

MissingProposalIdInPage

A proposal page row did not include its required identifier.

InvalidProposalIdInPage

A proposal page used the reserved zero identifier.

DuplicateProposalId

A proposal page repeated an identifier.

Fields

proposal_id: u64

ProposalCursorMismatch

A proposal did not satisfy the exclusive page cursor.

Fields

proposal_id: u64

before_proposal_id: u64

ProposalNotFound

Governance did not return the requested proposal.

Fields

proposal_id: u64

ProposalIdMismatch

Governance returned a different proposal than requested.

Fields

expected: u64

actual: Option<u64>

InvalidCollectionMaxPages

A resumable collection was configured without any page capacity.

InvalidCollectionState

Serialized or caller-modified resumable collection state is inconsistent.

Fields

reason: String

Deterministic state invariant that failed.

CollectionRequestMismatch

A continuation request changed an identity fixed when collection started.

Fields

field: &'static str

Fixed request field that changed.

expected: String

Value retained by the collection state.

actual: String

Value supplied by the continuation request.

CollectionComplete

A caller attempted to advance a collection that already exhausted the API.

Fields

pages_fetched: u32

Pages admitted before API exhaustion.

CollectionPageLimitReached

A caller attempted to advance a collection after consuming its page budget.

Fields

pages_fetched: u32

Pages admitted before the stopped advance.

max_pages: u32

Configured cumulative page ceiling.

CollectionSourceChanged

A later collection page was returned by a different collector.

Fields

expected: NnsGovernanceSourceProvenance

Concrete source retained from the first admitted page.

actual: NnsGovernanceSourceProvenance

Concrete source returned with the candidate page.

CollectionAccountingOverflow

Cumulative page or row accounting exceeded its integer representation.

Trait Implementations

impl Debug for NnsProposalError

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

Formats the value using the given formatter.

impl Display for NnsProposalError

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

Formats the value using the given formatter.

impl Error for NnsProposalError

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 From<NnsGovernanceError> for NnsProposalError

fn from(source: NnsGovernanceError) -> Self

Converts to this type from the input type.