erigon-pulse/trie/trie_witness.go

21 lines
918 B
Go

package trie
func (t *Trie) ExtractWitness(blockNr uint64, trace bool, rs *ResolveSet, codeMap CodeMap) (*Witness, error) {
return extractWitnessFromRootNode(t.root, blockNr, trace, rs, codeMap)
}
// extractWitnessFromRootNode extracts a witness for a subtrie starting from the specified root
// if hashOnly param is nil it will make a witness for the full subtrie,
// if hashOnly param is set to a ResolveSet instance, it will make a witness for only the accounts/storages that were actually touched; other paths will be hashed.
func extractWitnessFromRootNode(root node, blockNr uint64, trace bool, hashOnly HashOnly, codeMap CodeMap) (*Witness, error) {
builder := NewWitnessBuilder(root, blockNr, trace, codeMap)
var limiter *MerklePathLimiter
if hashOnly != nil {
hr := newHasher(false)
defer returnHasherToPool(hr)
limiter = &MerklePathLimiter{hashOnly, hr.hash}
}
return builder.Build(limiter)
}