frame_plugins::balances::share_balance

Struct ModelCanReap

pub struct ModelCanReap;

Expand description

CanReap plugin family’s child model over the LazyBalance’s compile-time marker via ShareBalanceContext.

Bound to ShareBalanceFamily via LazyBalanceRoot::CanReap.

§Overview

Performs pre-checks to determine whether value can be removed from the balance, without mutating state.

§Validation Rules

zero-value reap is dis-allowed although actual operation treats it as no-op
balance must not be fresh (must be initialized)
balance must have existing deposits (issued > 0)
subtraction from effective must not underflow

§Semantics

This mirrors ModelReap constraints without applying state changes, ensuring reap execution will succeed if validation passes.

Trait Implementations§

impl Debug for ModelCanReap

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

Formats the value using the given formatter. Read more

impl Default for ModelCanReap

fn default() -> ModelCanReap

Returns the “default value” for a type. Read more

impl<'a, T, In, Out> PurePluginModel<In, ShareBalanceContext<T>, Out> for ModelCanReap
where T: LazyBalance<Input<'a> = In, Output<'a> = Out>, Context<T>: VirtualError<LazyBalanceError, Error = ShareBalanceError>, Out: LazyBalanceOutput<'a, T::Asset, T::Receipt, T::SnapShot, T::Time, T::Limits, T>, In: LazyBalanceInput<'a, T::Balance, T::Variant, T::Id, T::Asset, T::Receipt, T>,

fn compute(&self, input: In, _context: &ShareBalanceContext<T>) -> Out

Computes the model’s output for a given immutable input and context.

Auto Trait Implementations§

impl Freeze for ModelCanReap

impl RefUnwindSafe for ModelCanReap

impl Send for ModelCanReap

impl Sync for ModelCanReap

impl Unpin for ModelCanReap

impl UnwindSafe for ModelCanReap

Blanket Implementations§

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const FALLBACK_TARGET: &'static str = "routine"

Default logging target if none is provided.

Most routines, especially offchain workers or background tasks, use this target for simplicity.

It allows a consistent place to look for routine logs without requiring every call to specify a target.

Note: This target is only a conveninence and may be somewhat vague. To ensure errors can still be traced accurately, the logged messages should include additional metadata (e.g., module name, error index, or contextual info) so that the source of the error can be identified even if the target is generic.

type Logger = DispatchError

The type taken and returned for logging.

We simply return the same [DispatchError] that was logged, so logging does not change control flow or error propagation.

DispatchError is used because in Substrate it encompasses all runtime errors - including module errors, token errors, arithmetic issues, and transactional boundaries - making it the universal substrate-side error representation.

type Level = LogLevel

The log level type.

We use the LogLevel enum to standardize severity levels (Info, Warn, Error, Debug) across all routine logs.

fn log( level: <T as Logging<Time>>::Level, err: &<T as Logging<Time>>::Logger, timestamp: Time, target: Option<&str>, fmt: Option<fn(Time, &<T as Logging<Time>>::Level, &str, &str) -> String>, ) -> <T as Logging<Time>>::Logger

Core logging function that all helpers delegate to. Read more

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