Struct AllowanceShortfall 

pub struct AllowanceShortfall;

Typed marker attached to a top_up submit error whose revert is an ERC20InsufficientAllowance shortfall: the PaymentPool’s standing USDC allowance is below the transfer amount. The node’s fund_pool downcasts on it to run a just-in-time approve and retry once; every other revert stays terminal. CLI callers never downcast it, so it is invisible to them.

Trait Implementations

impl Clone for AllowanceShortfall

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 AllowanceShortfall

impl Debug for AllowanceShortfall

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

Formats the value using the given formatter.

impl Display for AllowanceShortfall

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

Formats the value using the given formatter.

impl Error for AllowanceShortfall

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.