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feat: stateless lien module that upcalls to kernel
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,15 @@ | ||
| package lien | ||
|
|
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| import ( | ||
| "github.com/Agoric/agoric-sdk/golang/cosmos/x/lien/keeper" | ||
| "github.com/Agoric/agoric-sdk/golang/cosmos/x/lien/types" | ||
| ) | ||
|
|
||
| var ( | ||
| NewKeeper = keeper.NewKeeper | ||
| NewWrappedAccountKeeper = types.NewWrappedAccountKeeper | ||
| ) | ||
|
|
||
| type ( | ||
| Keeper = keeper.Keeper | ||
| ) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,135 @@ | ||
| package keeper | ||
|
|
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| import ( | ||
| "strings" | ||
| "time" | ||
|
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| "github.com/Agoric/agoric-sdk/golang/cosmos/x/lien/types" | ||
|
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| sdk "github.com/cosmos/cosmos-sdk/types" | ||
| authtypes "github.com/cosmos/cosmos-sdk/x/auth/types" | ||
| vestexported "github.com/cosmos/cosmos-sdk/x/auth/vesting/exported" | ||
| ) | ||
|
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||
| func maxCoins(a, b sdk.Coins) sdk.Coins { | ||
| max := make([]sdk.Coin, 0) | ||
| for indexA, indexB := 0, 0; indexA < len(a) && indexB < len(b); { | ||
| coinA, coinB := a[indexA], b[indexB] | ||
| switch strings.Compare(coinA.Denom, coinB.Denom) { | ||
| case -1: // A < B | ||
| max = append(max, coinA) | ||
| indexA++ | ||
| case 0: // A == B | ||
| maxCoin := coinA | ||
| if coinB.IsGTE(maxCoin) { | ||
| maxCoin = coinB | ||
| } | ||
| if !maxCoin.IsZero() { | ||
| max = append(max, maxCoin) | ||
| } | ||
| indexA++ | ||
| indexB++ | ||
| case 1: // A > B | ||
| max = append(max, coinB) | ||
| indexB++ | ||
| } | ||
| } | ||
| return sdk.NewCoins(max...) | ||
| } | ||
|
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| var _ vestexported.VestingAccount = &LienAccount{} | ||
|
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| type LienAccount struct { | ||
| vestexported.VestingAccount | ||
| lienKeeper Keeper | ||
| } | ||
|
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| // LockedCoins implements the method from the VestingAccount interface. | ||
| // It takes the maximum of the coins locked for liens and the cons | ||
| // locked in the wrapped VestingAccount. | ||
| func (la *LienAccount) LockedCoins(ctx sdk.Context) sdk.Coins { | ||
| wrappedLocked := la.VestingAccount.LockedCoins(ctx) | ||
| lienedLocked := la.LienedLockedCoins(ctx) | ||
| return maxCoins(wrappedLocked, lienedLocked) | ||
| } | ||
|
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| func (la *LienAccount) LienedLockedCoins(ctx sdk.Context) sdk.Coins { | ||
| return la.lienKeeper.GetLien(ctx, la.GetAddress()) | ||
| } | ||
|
|
||
| func NewAccountWrapper(lk Keeper) types.AccountWrapper { | ||
| return types.AccountWrapper{ | ||
| Wrap: func(acc authtypes.AccountI) authtypes.AccountI { | ||
| if acc == nil { | ||
| return nil | ||
| } | ||
| return &LienAccount{ | ||
| VestingAccount: makeVesting(acc), | ||
| lienKeeper: lk, | ||
| } | ||
| }, | ||
| Unwrap: func(acc authtypes.AccountI) authtypes.AccountI { | ||
| if la, ok := acc.(*LienAccount); ok { | ||
| acc = la.VestingAccount | ||
| } | ||
| if uva, ok := acc.(*unlockedVestingAccount); ok { | ||
| acc = uva.AccountI | ||
| } | ||
| return acc | ||
| }, | ||
| } | ||
| } | ||
|
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||
| func makeVesting(acc authtypes.AccountI) vestexported.VestingAccount { | ||
| if v, ok := acc.(vestexported.VestingAccount); ok { | ||
| return v | ||
| } | ||
| return &unlockedVestingAccount{AccountI: acc} | ||
| } | ||
|
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| // unlockedVestingAccount extends an ordinary account to be a vesting account | ||
| // by simulating an original vesting amount of zero. It will be still stored | ||
| // as the wrapped account. | ||
| type unlockedVestingAccount struct { | ||
| authtypes.AccountI | ||
| } | ||
|
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| var _ vestexported.VestingAccount = (*unlockedVestingAccount)(nil) | ||
|
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| func (uva *unlockedVestingAccount) LockedCoins(ctx sdk.Context) sdk.Coins { | ||
| return sdk.NewCoins() | ||
| } | ||
|
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| func (uva *unlockedVestingAccount) TrackDelegation(blockTime time.Time, balance, amount sdk.Coins) { | ||
| } | ||
|
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| func (uva *unlockedVestingAccount) TrackUndelegation(amount sdk.Coins) { | ||
| } | ||
|
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| func (uva *unlockedVestingAccount) GetVestedCoins(blockTime time.Time) sdk.Coins { | ||
| return sdk.NewCoins() | ||
| } | ||
|
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| func (uva *unlockedVestingAccount) GetVestingCoins(blockTime time.Time) sdk.Coins { | ||
| return sdk.NewCoins() | ||
| } | ||
|
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| func (uva *unlockedVestingAccount) GetStartTime() int64 { | ||
| return 0 | ||
| } | ||
|
|
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| func (uva *unlockedVestingAccount) GetEndTime() int64 { | ||
| return 0 | ||
| } | ||
|
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| func (uva *unlockedVestingAccount) GetOriginalVesting() sdk.Coins { | ||
| return sdk.NewCoins() | ||
| } | ||
|
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| func (uva *unlockedVestingAccount) GetDelegatedFree() sdk.Coins { | ||
| return sdk.NewCoins() | ||
| } | ||
|
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| func (uva *unlockedVestingAccount) GetDelegatedVesting() sdk.Coins { | ||
| return sdk.NewCoins() | ||
| } |
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