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hooks.go
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hooks.go
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package types
import sdk "github.com/cosmos/cosmos-sdk/types"
type AmmHooks interface {
// AfterPoolCreated is called after CreatePool
AfterPoolCreated(ctx sdk.Context, sender sdk.AccAddress, pool Pool)
// AfterJoinPool is called after JoinPool, JoinSwapExternAmountIn, and JoinSwapShareAmountOut
AfterJoinPool(ctx sdk.Context, sender sdk.AccAddress, pool Pool, enterCoins sdk.Coins, shareOutAmount sdk.Int)
// AfterExitPool is called after ExitPool, ExitSwapShareAmountIn, and ExitSwapExternAmountOut
AfterExitPool(ctx sdk.Context, sender sdk.AccAddress, pool Pool, shareInAmount sdk.Int, exitCoins sdk.Coins) error
// AfterSwap is called after SwapExactAmountIn and SwapExactAmountOut
AfterSwap(ctx sdk.Context, sender sdk.AccAddress, pool Pool, input sdk.Coins, output sdk.Coins) error
}
var _ AmmHooks = MultiAmmHooks{}
// combine multiple amm hooks, all hook functions are run in array sequence.
type MultiAmmHooks []AmmHooks
// Creates hooks for the Amm Module.
func NewMultiAmmHooks(hooks ...AmmHooks) MultiAmmHooks {
return hooks
}
func (h MultiAmmHooks) AfterPoolCreated(ctx sdk.Context, sender sdk.AccAddress, pool Pool) {
for i := range h {
h[i].AfterPoolCreated(ctx, sender, pool)
}
}
func (h MultiAmmHooks) AfterJoinPool(ctx sdk.Context, sender sdk.AccAddress, pool Pool, enterCoins sdk.Coins, shareOutAmount sdk.Int) {
for i := range h {
h[i].AfterJoinPool(ctx, sender, pool, enterCoins, shareOutAmount)
}
}
func (h MultiAmmHooks) AfterExitPool(ctx sdk.Context, sender sdk.AccAddress, pool Pool, shareInAmount sdk.Int, exitCoins sdk.Coins) error {
for i := range h {
err := h[i].AfterExitPool(ctx, sender, pool, shareInAmount, exitCoins)
if err != nil {
return err
}
}
return nil
}
func (h MultiAmmHooks) AfterSwap(ctx sdk.Context, sender sdk.AccAddress, pool Pool, input sdk.Coins, output sdk.Coins) error {
for i := range h {
err := h[i].AfterSwap(ctx, sender, pool, input, output)
if err != nil {
return err
}
}
return nil
}