32 lines
		
	
	
		
			733 B
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			32 lines
		
	
	
		
			733 B
		
	
	
	
		
			Go
		
	
	
	
	
	
| package helper
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| 
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| import "github.com/ethereum/go-ethereum/trie"
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| 
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| type MemDatabase struct {
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| 	db map[string][]byte
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| }
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| 
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| func NewMemDatabase() (*MemDatabase, error) {
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| 	db := &MemDatabase{db: make(map[string][]byte)}
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| 	return db, nil
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| }
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| func (db *MemDatabase) Put(key []byte, value []byte) {
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| 	db.db[string(key)] = value
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| }
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| func (db *MemDatabase) Get(key []byte) ([]byte, error) {
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| 	return db.db[string(key)], nil
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| }
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| func (db *MemDatabase) Delete(key []byte) error {
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| 	delete(db.db, string(key))
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| 	return nil
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| }
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| func (db *MemDatabase) Print()              {}
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| func (db *MemDatabase) Close()              {}
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| func (db *MemDatabase) LastKnownTD() []byte { return nil }
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| 
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| func NewTrie() *trie.Trie {
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| 	db, _ := NewMemDatabase()
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| 
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| 	return trie.New(nil, db)
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| }
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