46 lines
1.7 KiB
Go
46 lines
1.7 KiB
Go
package types
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import (
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"math/big"
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sdk "github.com/cosmos/cosmos-sdk/types"
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)
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const (
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// AttoPhoton defines the default coin denomination used in Ethermint in:
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//
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// - Staking parameters: denomination used as stake in the dPoS chain
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// - Mint parameters: denomination minted due to fee distribution rewards
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// - Governance parameters: denomination used for spam prevention in proposal deposits
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// - Crisis parameters: constant fee denomination used for spam prevention to check broken invariant
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// - EVM parameters: denomination used for running EVM state transitions in Ethermint.
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AttoPhoton string = "aphoton"
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// BaseDenomUnit defines the base denomination unit for Photons.
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// 1 photon = 1x10^{BaseDenomUnit} aphoton
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BaseDenomUnit = 18
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)
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var (
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// PowerReduction defines the default power reduction value for staking
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PowerReduction = sdk.NewIntFromBigInt(new(big.Int).Exp(big.NewInt(10), big.NewInt(BaseDenomUnit), nil))
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)
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// NewPhotonCoin is a utility function that returns an "aphoton" coin with the given sdk.Int amount.
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// The function will panic if the provided amount is negative.
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func NewPhotonCoin(amount sdk.Int) sdk.Coin {
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return sdk.NewCoin(AttoPhoton, amount)
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}
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// NewPhotonDecCoin is a utility function that returns an "aphoton" decimal coin with the given sdk.Int amount.
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// The function will panic if the provided amount is negative.
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func NewPhotonDecCoin(amount sdk.Int) sdk.DecCoin {
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return sdk.NewDecCoin(AttoPhoton, amount)
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}
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// NewPhotonCoinInt64 is a utility function that returns an "aphoton" coin with the given int64 amount.
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// The function will panic if the provided amount is negative.
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func NewPhotonCoinInt64(amount int64) sdk.Coin {
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return sdk.NewInt64Coin(AttoPhoton, amount)
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}
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