cosmos-sdk/x/capability/simulation/decoder.go

34 lines
1.1 KiB
Go

package simulation
import (
"bytes"
"fmt"
"github.com/cosmos/cosmos-sdk/codec"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/types/kv"
"github.com/cosmos/cosmos-sdk/x/capability/types"
)
// NewDecodeStore returns a decoder function closure that unmarshals the KVPair's
// Value to the corresponding capability type.
func NewDecodeStore(cdc codec.Marshaler) func(kvA, kvB kv.Pair) string {
return func(kvA, kvB kv.Pair) string {
switch {
case bytes.Equal(kvA.Key, types.KeyIndex):
idxA := sdk.BigEndianToUint64(kvA.Value)
idxB := sdk.BigEndianToUint64(kvB.Value)
return fmt.Sprintf("Index A: %d\nIndex B: %d\n", idxA, idxB)
case bytes.HasPrefix(kvA.Key, types.KeyPrefixIndexCapability):
var capOwnersA, capOwnersB types.CapabilityOwners
cdc.MustUnmarshalBinaryBare(kvA.Value, &capOwnersA)
cdc.MustUnmarshalBinaryBare(kvB.Value, &capOwnersB)
return fmt.Sprintf("CapabilityOwners A: %v\nCapabilityOwners B: %v\n", capOwnersA, capOwnersB)
default:
panic(fmt.Sprintf("invalid %s key prefix %X (%s)", types.ModuleName, kvA.Key, string(kvA.Key)))
}
}
}