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tree.go
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tree.go
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package tlb
import (
"encoding/hex"
"fmt"
"github.com/xssnick/tonutils-go/tvm/cell"
)
type BinTree struct {
storage map[string]*cell.HashmapKV
}
func (b *BinTree) LoadFromCell(loader *cell.Slice) error {
b.storage = map[string]*cell.HashmapKV{}
var jumper func(next *cell.Slice, key *cell.Builder) error
jumper = func(next *cell.Slice, key *cell.Builder) error {
typ, err := next.LoadUInt(1)
if err != nil {
return fmt.Errorf("failed to load type flag: %w", err)
}
if typ == 0 {
finalKey := key.EndCell()
b.storage[hex.EncodeToString(finalKey.Hash())] = &cell.HashmapKV{
Key: finalKey,
Value: next.MustToCell(),
}
return nil
}
left, err := next.LoadRef()
if err != nil {
return fmt.Errorf("failed to load left flag: %w", err)
}
leftKey := key.Copy()
if err = leftKey.StoreUInt(0, 1); err != nil {
return fmt.Errorf("failed to store left key: %w", err)
}
if err := jumper(left, leftKey); err != nil {
return err
}
right, err := next.LoadRef()
if err != nil {
return fmt.Errorf("failed to load right flag: %w", err)
}
if err = key.StoreUInt(1, 1); err != nil {
return fmt.Errorf("failed to store right key: %w", err)
}
if err := jumper(right, key); err != nil {
return err
}
return nil
}
return jumper(loader, cell.BeginCell())
}
func (b *BinTree) Get(key *cell.Cell) *cell.Cell {
return b.storage[hex.EncodeToString(key.Hash())].Value
}
func (b *BinTree) All() []*cell.HashmapKV {
all := make([]*cell.HashmapKV, 0, len(b.storage))
for _, v := range b.storage {
all = append(all, v)
}
return all
}