Enum PendingError 

pub enum PendingError {
    UnknownPending {
        pending_id: String,
    },
    NotOpen {
        pending_id: String,
        state: PendingState,
    },
    AmountMismatch {
        pending_id: String,
        approved_cents: u64,
        given_cents: u64,
    },
    Expired {
        pending_id: String,
        expires_ts: u64,
        now_ts: u64,
    },
    InvalidTtl {
        ttl_secs: u64,
    },
    EmptyProof,
    NotConfirmed {
        pending_id: String,
        state: PendingState,
    },
    NotYetExpired {
        pending_id: String,
        expires_ts: u64,
        now_ts: u64,
    },
    DuplicatePendingId {
        pending_id: String,
    },
}

人在环待支付被拒(三钉 / 单号不存在 / 凭证缺失)。fail-closed:宁可拒,不可放。

Variants

UnknownPending

单号不存在(不是本闸开出的单)。

Fields

pending_id: String

NotOpen

单不在 Open 态(已确认/已完成/已作废)——幂等钉:同一单只能确认一次。

Fields

pending_id: String

state: PendingState

AmountMismatch

确认额 ≠ 审批额——金额一致钉(防夹带)。

Fields

pending_id: String

approved_cents: u64

given_cents: u64

Expired

单已过 TTL——TTL 钉(过期作废,确认过期单 = 拒)。

Fields

pending_id: String

expires_ts: u64

now_ts: u64

InvalidTtl

TTL 非法(0 = 开出来就是死的单,没有存在意义)。

Fields

ttl_secs: u64

EmptyProof

支付凭证为空——没有凭证的确认不是可对账的确认。

NotConfirmed

单未确认,没有「完成」可言(状态机误用/回放对账不一致)。

Fields

pending_id: String

state: PendingState

NotYetExpired

还没到期就写作废(状态机误用/回放对账不一致)。

Fields

pending_id: String

expires_ts: u64

now_ts: u64

DuplicatePendingId

单号重复(单号必须唯一;回放对账不一致时按 WalMismatch 上抛)。

Fields

pending_id: String

Trait Implementations

impl Clone for PendingError

fn clone(&self) -> PendingError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PendingError

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

Formats the value using the given formatter.

impl Display for PendingError

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

Formats the value using the given formatter.

impl Eq for PendingError

impl Error for PendingError

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 PendingError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for PendingError