Enum ValidationError 

pub enum ValidationError {
    TakeBeforeCredit {
        currency: Address,
        wanted: u128,
        have: i128,
    },
    SwapCalcBeforeCredit {
        pool: Address,
    },
    Erc20TransferBeforeCredit {
        currency: Address,
        wanted: u128,
        have: i128,
    },
    FlashDebtUnpaid {
        currency: Address,
        amount: u128,
    },
    PmDeltaNonzero {
        currency: Address,
        delta: i128,
    },
    NativeTransferBeforeCredit {
        wanted: u128,
        have: i128,
    },
    UnknownExternalLedger {
        ledger: u8,
    },
    OpenWethBatchNotFollowedByMint {
        weth: Address,
    },
}

Why a stream was rejected — the invariant that fired and the offending op.

Variants

TakeBeforeCredit

A take/mint fired before the PoolManager held credit (the D0 bug class).

Fields

currency: Address

wanted: u128

have: i128

SwapCalcBeforeCredit

A V2_SWAP_CALC fired before the pair was seeded (the terminal-V2 / 2PT5HH über-draw class).

Fields

pool: Address

Erc20TransferBeforeCredit

An ERC20_TRANSFER debiting the executor fired before the executor held currency credit (the V2/V3 flash-repay-before-credit class; surfaced by the 6SRC23 POC — byte-parity cannot see this ordering defect).

Fields

currency: Address

wanted: u128

have: i128

FlashDebtUnpaid

A flash debt was left unpaid at finish() — the V2/V3 analogue of the V4 “every delta nets to zero by callback end” invariant.

Fields

currency: Address

amount: u128

PmDeltaNonzero

A V4_UNLOCK closed with a nonzero PM[currency] delta — the V4 master invariant violation (a touched currency was not settled to zero by callback end).

Fields

currency: Address

delta: i128

NativeTransferBeforeCredit

A NativeTransfer (the executor→PM native pay-in leg of a native settle) debited the executor’s native balance before it held credit (the native analogue of Erc20TransferBeforeCredit). Surfaced by the a WethWithdraw (or native V4 take) must precede the native pay-in.

Fields

wanted: u128

have: i128

UnknownExternalLedger

An ExternalFlash/ExternalRepay referenced an external-ledger index not registered on the validator (VIXQYH stub). The validator must be constructed with with_external_ledgers covering the index the stream uses.

Fields

ledger: u8

OpenWethBatchNotFollowedByMint

A V4_BATCH_OPEN_WETH (0x43) left the WETH delta OPEN and the unlock closed before a WETH V4_MINT_COMPACT consumed it — the PM’s delta() would settle the leftover delta to the caller at callback end (TGUZCT: with the open-weth batch, a batch without its mint is unrepresentable).

Fields

weth: Address

Trait Implementations

impl Clone for ValidationError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ValidationError

impl Debug for ValidationError

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

Formats the value using the given formatter.

impl Eq for ValidationError

impl PartialEq for ValidationError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ValidationError