## Description Closes: #9404 --- ### Author Checklist *All items are required. Please add a note to the item if the item is not applicable and please add links to any relevant follow up issues.* I have... - [x] included the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title - [ ] added `!` to the type prefix if API or client breaking change - [x] targeted the correct branch (see [PR Targeting](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#pr-targeting)) - [x] provided a link to the relevant issue or specification - [ ] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/master/docs/building-modules) - [ ] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#testing) - [ ] added a changelog entry to `CHANGELOG.md` - [ ] included comments for [documenting Go code](https://blog.golang.org/godoc) - [ ] updated the relevant documentation or specification - [x] reviewed "Files changed" and left comments if necessary - [x] confirmed all CI checks have passed ### Reviewers Checklist *All items are required. Please add a note if the item is not applicable and please add your handle next to the items reviewed if you only reviewed selected items.* I have... - [ ] confirmed the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title - [ ] confirmed `!` in the type prefix if API or client breaking change - [ ] confirmed all author checklist items have been addressed - [ ] reviewed state machine logic - [ ] reviewed API design and naming - [ ] reviewed documentation is accurate - [ ] reviewed tests and test coverage - [ ] manually tested (if applicable)
1.6 KiB
1.6 KiB
Begin-Block
Minting parameters are recalculated and inflation paid at the beginning of each block.
NextInflationRate
The target annual inflation rate is recalculated each block. The inflation is also subject to a rate change (positive or negative) depending on the distance from the desired ratio (67%). The maximum rate change possible is defined to be 13% per year, however the annual inflation is capped as between 7% and 20%.
NextInflationRate(params Params, bondedRatio sdk.Dec) (inflation sdk.Dec) {
inflationRateChangePerYear = (1 - bondedRatio/params.GoalBonded) * params.InflationRateChange
inflationRateChange = inflationRateChangePerYear/blocksPerYr
// increase the new annual inflation for this next cycle
inflation += inflationRateChange
if inflation > params.InflationMax {
inflation = params.InflationMax
}
if inflation < params.InflationMin {
inflation = params.InflationMin
}
return inflation
}
NextAnnualProvisions
Calculate the annual provisions based on current total supply and inflation rate. This parameter is calculated once per block.
NextAnnualProvisions(params Params, totalSupply sdk.Dec) (provisions sdk.Dec) {
return Inflation * totalSupply
BlockProvision
Calculate the provisions generated for each block based on current annual provisions. The provisions are then minted by the mint module's ModuleMinterAccount and then transferred to the auth's FeeCollector ModuleAccount.
BlockProvision(params Params) sdk.Coin {
provisionAmt = AnnualProvisions/ params.BlocksPerYear
return sdk.NewCoin(params.MintDenom, provisionAmt.Truncate())