Inside Bitcoin

1// Copyright (c) 2021-present The Bitcoin Core developers
2// Distributed under the MIT software license, see the accompanying
3// file COPYING or http://www.opensource.org/licenses/mit-license.php.
4
5#ifndef BITCOIN_TEST_UTIL_SCRIPT_H
6#define BITCOIN_TEST_UTIL_SCRIPT_H
7
8#include <crypto/sha256.h>
9#include <script/script.h>
10#include <script/verify_flags.h>
11
12static const std::vector<uint8_t> WITNESS_STACK_ELEM_OP_TRUE{uint8_t{OP_TRUE}};
13static const CScript P2WSH_OP_TRUE{
14    CScript{}
15    << OP_0
16    << ToByteVector([] {
17           uint256 hash;
18           CSHA256().Write(WITNESS_STACK_ELEM_OP_TRUE.data(), WITNESS_STACK_ELEM_OP_TRUE.size()).Finalize(hash.begin());
19           return hash;
20       }())};
21
22static const std::vector<uint8_t> EMPTY{};
23static const CScript P2WSH_EMPTY{
24    CScript{}
25    << OP_0
26    << ToByteVector([] {
27           uint256 hash;
28           CSHA256().Write(EMPTY.data(), EMPTY.size()).Finalize(hash.begin());
29           return hash;
30       }())};
31static const std::vector<std::vector<uint8_t>> P2WSH_EMPTY_TRUE_STACK{{static_cast<uint8_t>(OP_TRUE)}, {}};
32static const std::vector<std::vector<uint8_t>> P2WSH_EMPTY_TWO_STACK{{static_cast<uint8_t>(OP_2)}, {}};
33
34/** Flags that are not forbidden by an assert in script validation */
35bool IsValidFlagCombination(script_verify_flags flags);
36
37#endif // BITCOIN_TEST_UTIL_SCRIPT_H
38