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storage.go
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storage.go
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package support
import (
"fmt"
"strings"
errorsmod "cosmossdk.io/errors"
"github.com/artela-network/artela/x/evm/types"
"github.com/ethereum/go-ethereum/common"
)
// ----------------------------------------------------------------------------
// State
// ----------------------------------------------------------------------------
// Validate performs a basic validation of the State fields.
// NOTE: states value can be empty
// State represents a single Storage key value pair item.
func (s State) Validate() error {
if strings.TrimSpace(s.Key) == "" {
return errorsmod.Wrap(types.ErrInvalidState, "states key hash cannot be blank")
}
return nil
}
// NewState creates a new State instance
func NewState(key, value common.Hash) State {
return State{
Key: key.String(),
Value: value.String(),
}
}
// ----------------------------------------------------------------------------
// State Array - Storage
// ----------------------------------------------------------------------------
// Storage represents the account Storage map as a slice of single key value
// State pairs.
type Storage []State
// Validate performs a basic validation of the Storage fields.
func (s Storage) Validate() error {
seenStorage := make(map[string]bool)
for i, state := range s {
if seenStorage[state.Key] {
return errorsmod.Wrapf(types.ErrInvalidState, "duplicate states key %d: %s", i, state.Key)
}
if err := state.Validate(); err != nil {
return err
}
seenStorage[state.Key] = true
}
return nil
}
// String implements the stringer interface
func (s Storage) String() string {
var str string
for _, state := range s {
str += fmt.Sprintf("%s\n", state.String())
}
return str
}
// Copy returns a copy of storage.
func (s Storage) Copy() Storage {
cpy := make(Storage, len(s))
copy(cpy, s)
return cpy
}