frame_plugins::rewards::payout

Struct InflationPayout

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pub struct InflationPayout;
Expand description

The InflationPayout model computes rewards as a fixed proportion of the input asset, based on a configured inflation rate.

Concept: Linear Inflation Scaling

The model converts the input asset into a fixed-point representation, applies the inflation rate, and converts the result back into the original asset type.

§Formula

reward = input * inflation_rate

§Characteristics:

  • Proportional: Rewards scale linearly with the input value.
  • Deterministic: Same input and rate always produce the same output.
  • Fixed-point safe: Uses fixed-point arithmetic for precision.
  • Context-driven: Controlled via InflationPayoutConfig.

§Applications:

  • Staking reward systems
  • Inflationary token supply models
  • Proportional incentive distribution

§Use Cases

  • Token inflation mechanisms
  • Staking rewards proportional to stake
  • Emission schedules with fixed percentage growth

§Example:

ⓘ
let config = InflationPayoutConfig {
    inflation_rate: FixedU128::from_rational(1, 100)
}; // 1%
let reward = InflationPayout::compute(1_000u128, Some(config));
assert_eq!(reward, 10);

Trait Implementations§

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impl Debug for InflationPayout

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

Formats the value using the given formatter. Read more
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impl Default for InflationPayout

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fn default() -> InflationPayout

Returns the “default value” for a type. Read more
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impl<FixedPoint, Asset> PurePluginModel<Asset, InflationPayoutConfig<FixedPoint>, Asset> for InflationPayout
where Asset: IntegerToFixed + FixedForInteger<FixedPoint = FixedPoint>, FixedPoint: FixedPointNumber,

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fn compute( &self, input: Asset, context: &InflationPayoutConfig<FixedPoint>, ) -> Asset

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

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