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Add TaprootBuilder class

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This class functions as a utility for building taproot outputs, from
internal key and script leaves.
This commit is contained in:
Pieter Wuille
2021-02-01 18:53:24 -08:00
parent 5f6cc8daa8
commit 90fcac365e
7 changed files with 262 additions and 2 deletions
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4
src/script/interpreter.h
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@@ -6,6 +6,7 @@
#ifndef BITCOIN_SCRIPT_INTERPRETER_H
#define BITCOIN_SCRIPT_INTERPRETER_H
#include <hash.h>
#include <script/script_error.h>
#include <span.h>
#include <primitives/transaction.h>
@@ -218,6 +219,9 @@ static constexpr size_t TAPROOT_CONTROL_NODE_SIZE = 32;
static constexpr size_t TAPROOT_CONTROL_MAX_NODE_COUNT = 128;
static constexpr size_t TAPROOT_CONTROL_MAX_SIZE = TAPROOT_CONTROL_BASE_SIZE + TAPROOT_CONTROL_NODE_SIZE * TAPROOT_CONTROL_MAX_NODE_COUNT;
extern const CHashWriter HASHER_TAPLEAF; //!< Hasher with tag "TapLeaf" pre-fed to it.
extern const CHashWriter HASHER_TAPBRANCH; //!< Hasher with tag "TapBranch" pre-fed to it.
template <class T>
uint256 SignatureHash(const CScript& scriptCode, const T& txTo, unsigned int nIn, int nHashType, const CAmount& amount, SigVersion sigversion, const PrecomputedTransactionData* cache = nullptr);