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Stable release v32.1bitcoin/bitcoin · f0de87f04062 ↗3,020 source files · 47.5 MB stored on the server440 file guides

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bitcoin / src / script / miniscript.h

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2501            } else {
2502                to_parse.emplace_back(DecodeContext::SWAP, -1, -1);
2503            }
2504            to_parse.emplace_back(DecodeContext::BKV_EXPR, -1, -1);
2505            break;
2506        }
2507        case DecodeContext::MAYBE_AND_V: {
2508            // If we reach a potential AND_V top-level, check if the next part of the script could be another AND_V child
2509            // These op-codes cannot end any well-formed miniscript so cannot be used in an and_v node.
2510            if (in < last && in[0].first != OP_IF && in[0].first != OP_ELSE && in[0].first != OP_NOTIF && in[0].first != OP_TOALTSTACK && in[0].first != OP_SWAP) {
2511                to_parse.emplace_back(DecodeContext::AND_V, -1, -1);
2512                // BKV_EXPR can contain more AND_V nodes
2513                to_parse.emplace_back(DecodeContext::BKV_EXPR, -1, -1);
2514            }
2515            break;
2516        }
2517        case DecodeContext::SWAP: {
2518            if (in >= last || in[0].first != OP_SWAP || constructed.empty()) return {};
2519            ++in;
2520            constructed.back() = Node{internal::NoDupCheck{}, ctx.MsContext(), Fragment::WRAP_S, Vector(std::move(constructed.back()))};
2521            break;
2522        }
2523        case DecodeContext::ALT: {
2524            if (in >= last || in[0].first != OP_TOALTSTACK || constructed.empty()) return {};
2525            ++in;
2526            constructed.back() = Node{internal::NoDupCheck{}, ctx.MsContext(), Fragment::WRAP_A, Vector(std::move(constructed.back()))};
2527            break;
2528        }
2529        case DecodeContext::CHECK: {
2530            if (constructed.empty()) return {};
2531            constructed.back() = Node{internal::NoDupCheck{}, ctx.MsContext(), Fragment::WRAP_C, Vector(std::move(constructed.back()))};
2532            break;
2533        }
2534        case DecodeContext::DUP_IF: {
2535            if (constructed.empty()) return {};
2536            constructed.back() = Node{internal::NoDupCheck{}, ctx.MsContext(), Fragment::WRAP_D, Vector(std::move(constructed.back()))};
2537            break;
2538        }
2539        case DecodeContext::VERIFY: {
2540            if (constructed.empty()) return {};
2541            constructed.back() = Node{internal::NoDupCheck{}, ctx.MsContext(), Fragment::WRAP_V, Vector(std::move(constructed.back()))};
2542            break;
2543        }
2544        case DecodeContext::NON_ZERO: {
2545            if (constructed.empty()) return {};
2546            constructed.back() = Node{internal::NoDupCheck{}, ctx.MsContext(), Fragment::WRAP_J, Vector(std::move(constructed.back()))};
2547            break;
2548        }
2549        case DecodeContext::ZERO_NOTEQUAL: {
2550            if (constructed.empty()) return {};
2551            constructed.back() = Node{internal::NoDupCheck{}, ctx.MsContext(), Fragment::WRAP_N, Vector(std::move(constructed.back()))};
2552            break;
2553        }
2554        case DecodeContext::AND_V: {
2555            if (constructed.size() < 2) return {};
2556            BuildBack(ctx.MsContext(), Fragment::AND_V, constructed, /*reverse=*/true);
2557            break;
2558        }
2559        case DecodeContext::AND_B: {
2560            if (constructed.size() < 2) return {};
2561            BuildBack(ctx.MsContext(), Fragment::AND_B, constructed, /*reverse=*/true);
2562            break;
2563        }
2564        case DecodeContext::OR_B: {
2565            if (constructed.size() < 2) return {};
2566            BuildBack(ctx.MsContext(), Fragment::OR_B, constructed, /*reverse=*/true);
2567            break;
2568        }
2569        case DecodeContext::OR_C: {
2570            if (constructed.size() < 2) return {};
2571            BuildBack(ctx.MsContext(), Fragment::OR_C, constructed, /*reverse=*/true);
2572            break;
2573        }
2574        case DecodeContext::OR_D: {
2575            if (constructed.size() < 2) return {};
2576            BuildBack(ctx.MsContext(), Fragment::OR_D, constructed, /*reverse=*/true);
2577            break;
2578        }
2579        case DecodeContext::ANDOR: {
2580            if (constructed.size() < 3) return {};
2581            Node left{std::move(constructed.back())};
2582            constructed.pop_back();
2583            Node right{std::move(constructed.back())};
2584            constructed.pop_back();
2585            Node mid{std::move(constructed.back())};
2586            constructed.back() = Node{internal::NoDupCheck{}, ctx.MsContext(), Fragment::ANDOR, Vector(std::move(left), std::move(mid), std::move(right))};
2587            break;
2588        }
2589        case DecodeContext::THRESH_W: {
2590            if (in >= last) return {};
2591            if (in[0].first == OP_ADD) {
2592                ++in;
2593                to_parse.emplace_back(DecodeContext::THRESH_W, n+1, k);
2594                to_parse.emplace_back(DecodeContext::W_EXPR, -1, -1);
2595            } else {
2596                to_parse.emplace_back(DecodeContext::THRESH_E, n+1, k);
2597                // All children of thresh have type modifier d, so cannot be and_v
2598                to_parse.emplace_back(DecodeContext::SINGLE_BKV_EXPR, -1, -1);
2599            }
2600            break;
2601        }
2602        case DecodeContext::THRESH_E: {
2603            if (k < 1 || k > n || constructed.size() < static_cast<size_t>(n)) return {};
2604            std::vector<Node<Key>> subs;
2605            for (int i = 0; i < n; ++i) {
2606                Node sub{std::move(constructed.back())};
2607                constructed.pop_back();
2608                subs.push_back(std::move(sub));
2609            }
2610            constructed.emplace_back(internal::NoDupCheck{}, ctx.MsContext(), Fragment::THRESH, std::move(subs), k);
2611            break;
2612        }
2613        case DecodeContext::ENDIF: {
2614            if (in >= last) return {};
2615
2616            // could be andor or or_i
2617            if (in[0].first == OP_ELSE) {
2618                ++in;
2619                to_parse.emplace_back(DecodeContext::ENDIF_ELSE, -1, -1);
2620                to_parse.emplace_back(DecodeContext::BKV_EXPR, -1, -1);
2621            }
2622            // could be j: or d: wrapper
2623            else if (in[0].first == OP_IF) {
2624                if (last - in >= 2 && in[1].first == OP_DUP) {
2625                    in += 2;
2626                    to_parse.emplace_back(DecodeContext::DUP_IF, -1, -1);
2627                } else if (last - in >= 3 && in[1].first == OP_0NOTEQUAL && in[2].first == OP_SIZE) {
2628                    in += 3;
2629                    to_parse.emplace_back(DecodeContext::NON_ZERO, -1, -1);
2630                }
2631                else {
2632                    return {};
2633                }
2634            // could be or_c or or_d
2635            } else if (in[0].first == OP_NOTIF) {
2636                ++in;
2637                to_parse.emplace_back(DecodeContext::ENDIF_NOTIF, -1, -1);
2638            }
2639            else {
2640                return {};
2641            }
2642            break;
2643        }
2644        case DecodeContext::ENDIF_NOTIF: {
2645            if (in >= last) return {};
2646            if (in[0].first == OP_IFDUP) {
2647                ++in;
2648                to_parse.emplace_back(DecodeContext::OR_D, -1, -1);
2649            } else {
2650                to_parse.emplace_back(DecodeContext::OR_C, -1, -1);
2651            }
2652            // or_c and or_d both require X to have type modifier d so, can't contain and_v
2653            to_parse.emplace_back(DecodeContext::SINGLE_BKV_EXPR, -1, -1);
2654            break;
2655        }
2656        case DecodeContext::ENDIF_ELSE: {
2657            if (in >= last) return {};
2658            if (in[0].first == OP_IF) {
2659                ++in;
2660                BuildBack(ctx.MsContext(), Fragment::OR_I, constructed, /*reverse=*/true);
2661            } else if (in[0].first == OP_NOTIF) {
2662                ++in;
2663                to_parse.emplace_back(DecodeContext::ANDOR, -1, -1);
2664                // andor requires X to have type modifier d, so it can't be and_v
2665                to_parse.emplace_back(DecodeContext::SINGLE_BKV_EXPR, -1, -1);
2666            } else {
2667                return {};
2668            }
2669            break;
2670        }
2671        }
2672    }
2673    if (constructed.size() != 1) return {};
2674    Node tl_node{std::move(constructed.front())};
2675    tl_node.DuplicateKeyCheck(ctx);
2676    // Note that due to how ComputeType works (only assign the type to the node if the
2677    // subs' types are valid) this would fail if any node of tree is badly typed.
2678    if (!tl_node.IsValidTopLevel()) return {};
2679    return tl_node;
2680}
2681
2682} // namespace internal
2683
2684template <typename Ctx>
2685inline std::optional<Node<typename Ctx::Key>> FromString(const std::string& str, const Ctx& ctx)
2686{
2687    return internal::Parse<typename Ctx::Key>(str, ctx);
2688}
2689
2690template <typename Ctx>
2691inline std::optional<Node<typename Ctx::Key>> FromScript(const CScript& script, const Ctx& ctx)
2692{
2693    using namespace internal;
2694    // A too large Script is necessarily invalid, don't bother parsing it.
2695    if (script.size() > MaxScriptSize(ctx.MsContext())) return {};
2696    auto decomposed = DecomposeScript(script);
2697    if (!decomposed) return {};
2698    auto it = decomposed->begin();
2699    auto ret = DecodeScript<typename Ctx::Key>(it, decomposed->end(), ctx);
2700    if (!ret) return {};
2701    if (it != decomposed->end()) return {};
2702    return ret;
2703}
2704
2705} // namespace miniscript
2706
2707#endif // BITCOIN_SCRIPT_MINISCRIPT_H
2708

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440 guided files · 2,580 pending. Guides cover key sections, not every line.

cmake/bitcoin-build-config.h.in src/consensus/amount.h src/consensus/consensus.h src/primitives/block.h src/primitives/transaction.h src/crypto/sha256.h src/util/moneystr.h src/clientversion.h src/uint256.h src/script/script.h src/policy/policy.h CMakeLists.txt README.md COPYING src/consensus/tx_check.cpp src/consensus/tx_verify.cpp src/consensus/merkle.cpp src/pow.cpp src/validation.cpp src/script/interpreter.cpp src/script/solver.cpp src/script/sign.cpp src/key_io.cpp src/net.cpp src/net_processing.cpp src/netaddress.cpp src/protocol.h src/wallet/wallet.cpp src/wallet/spend.cpp

← Previous 250 linesCode page 11

src/wallet/receive.cpp

src/wallet/coinselection.cpp

src/consensus/validation.h

src/primitives/transaction.cpp

src/script/descriptor.cpp

src/bitcoin-cli.cpp

src/rpc/blockchain.cpp

src/rpc/rawtransaction.cpp

src/init.cpp

src/crypto/sha256.cpp

src/consensus/merkle.h

src/consensus/tx_check.h

src/consensus/tx_verify.h

src/policy/feerate.h

src/policy/feerate.cpp

src/primitives/transaction_identifier.h

src/chainparamsbase.h

src/chainparamsbase.cpp

src/util/moneystr.cpp

src/crypto/ripemd160.h

src/crypto/sha1.h

src/crypto/sha512.h

src/crypto/hmac_sha256.h

src/crypto/hmac_sha512.h

src/crypto/hmac_sha256.cpp

src/crypto/hmac_sha512.cpp

src/crypto/hkdf_sha256_32.h

src/crypto/hkdf_sha256_32.cpp

src/support/cleanse.h

src/support/cleanse.cpp

src/crypto/siphash.cpp

src/crypto/muhash.h

src/crypto/chacha20.h

src/crypto/poly1305.h

src/crypto/chacha20poly1305.h

src/crypto/chacha20poly1305.cpp

src/util/chaintype.cpp

src/util/obfuscation.h

src/util/byte_units.h

src/util/overflow.h

src/blockencodings.cpp

src/net_permissions.cpp

src/policy/packages.cpp

src/policy/rbf.cpp

src/policy/truc_policy.cpp

src/policy/ephemeral_policy.cpp

src/policy/settings.cpp

src/policy/policy.cpp

src/node/transaction.cpp

src/node/coin.cpp

src/rpc/client.cpp

src/rpc/external_signer.cpp

src/rpc/request.cpp

src/rpc/server_util.cpp

src/rpc/fees.cpp

src/rpc/output_script.cpp

src/rpc/rawtransaction_util.cpp

src/rpc/rawtransaction_util.h

src/rpc/register.h

src/rpc/request.h

src/rpc/server_util.h

src/rpc/protocol.h

src/rpc/server.h

src/rpc/signmessage.cpp

src/rpc/txoutproof.cpp

src/rpc/util.cpp

src/rpc/util.h

src/wallet/rpc/addresses.cpp

src/wallet/rpc/backup.cpp

src/wallet/rpc/coins.cpp

src/wallet/rpc/encrypt.cpp

src/wallet/rpc/signmessage.cpp

src/wallet/rpc/util.cpp

src/wallet/rpc/util.h

src/wallet/coincontrol.cpp

src/wallet/coincontrol.h

src/wallet/context.cpp

src/wallet/context.h

src/wallet/crypter.cpp

src/wallet/crypter.h

src/wallet/db.cpp

src/wallet/export.cpp

src/wallet/external_signer_scriptpubkeyman.cpp

src/wallet/rpc/spend.cpp

src/wallet/rpc/transactions.cpp

src/wallet/rpc/wallet.cpp

src/wallet/feebumper.cpp

src/wallet/feebumper.h

src/index/base.h

src/index/base.cpp

src/index/txindex.h

src/index/txindex.cpp

src/index/txindex_key.h

src/index/txospenderindex.h

src/index/txospenderindex.cpp

src/index/blockfilterindex.h

src/index/blockfilterindex.cpp

src/index/coinstatsindex.h

src/index/coinstatsindex.cpp

src/index/db_key.h

src/index/disktxpos.h

src/kernel/chain.cpp

src/kernel/chain.h

src/kernel/checks.cpp

src/kernel/checks.h

src/kernel/context.cpp

src/kernel/context.h

src/kernel/cs_main.cpp

src/kernel/cs_main.h

src/kernel/disconnected_transactions.cpp

src/kernel/disconnected_transactions.h

src/kernel/mempool_removal_reason.cpp

src/kernel/mempool_removal_reason.h

src/kernel/coinstats.cpp

src/kernel/coinstats.h

src/kernel/chainparams.cpp

src/kernel/chainparams.h

src/wallet/sqlite.cpp

src/wallet/sqlite.h

src/wallet/transaction.cpp

src/wallet/transaction.h

src/wallet/dump.cpp

src/wallet/dump.h

src/wallet/init.cpp

src/wallet/walletutil.cpp

src/wallet/walletutil.h

src/wallet/wallettool.cpp

src/wallet/wallettool.h

src/wallet/export.h

src/wallet/migrate.cpp

src/wallet/migrate.h

src/wallet/db.h

src/wallet/walletdb.cpp

src/wallet/interfaces.cpp

src/wallet/scriptpubkeyman.cpp

src/wallet/scriptpubkeyman.h

src/kernel/bitcoinkernel.cpp

src/kernel/bitcoinkernel.h

src/kernel/bitcoinkernel_wrapper.h

src/node/chainstate.cpp

src/node/chainstate.h

src/node/blockstorage.cpp

src/node/blockstorage.h

src/node/mempool_persist.cpp

src/node/mempool_persist.h

src/node/utxo_snapshot.cpp

src/node/utxo_snapshot.h

src/node/kernel_notifications.cpp

src/node/kernel_notifications.h

src/node/blockmanager_args.cpp

src/kernel/blockmanager_opts.h

src/util/expected.cpp

src/policy/settings.h

src/util/types.h

src/kernel/messagestartchars.h

src/kernel/warning.h

src/util/exception.h

src/common/license_info.h

src/node/coins_view_args.h

src/node/database_args.h

src/util/batchpriority.h

src/util/ui_change_type.h

src/node/coins_view_args.cpp

src/node/peerman_args.h

src/util/serfloat.h

src/node/blockmanager_args.h

src/node/database_args.cpp

src/util/overloaded.h

src/interfaces/types.h

src/node/chainstatemanager_args.h

src/node/minisketchwrapper.h

src/util/macros.h

src/util/syserror.h

src/common/run_command.h

src/util/bytevectorhash.cpp

src/node/mempool_persist_args.cpp

src/util/exec.h

src/util/rbf.h

src/crypto/hex_base.h

src/node/mempool_persist_args.h

src/interfaces/echo.h

src/util/any.h

src/util/batchpriority.cpp

src/util/threadnames.h

src/node/coin.h

src/node/mempool_args.h

src/util/asmap.h

src/util/bytevectorhash.h

src/node/context.cpp

src/util/insert.h

src/util/readwritefile.h

src/node/peerman_args.cpp

src/node/interface_ui.cpp

src/interfaces/handler.h

src/node/mining_args.h

src/util/hasher.cpp

src/common/init.h

src/kernel/mempool_limits.h

src/common/system.h

src/crypto/sha3.h

src/util/threadinterrupt.cpp

src/node/protocol_version.h

src/util/exception.cpp

src/common/messages.h

src/node/connection_types.cpp

src/util/bip32.h

src/common/license_info.cpp

src/util/stdmutex.h

src/common/run_command.cpp

src/util/check.cpp

src/util/golombrice.h

src/node/types.h

src/node/timeoffsets.h

src/util/readwritefile.cpp

src/util/fastrange.h

src/util/signalinterrupt.h

src/util/task_runner.h

src/util/syserror.cpp

src/common/interfaces.cpp

src/common/types.h

src/util/threadinterrupt.h

src/kernel/chainstatemanager_opts.h

src/node/psbt.h

src/policy/ephemeral_policy.h

src/util/trace.h

src/common/url.cpp

src/kernel/mempool_options.h

src/util/serfloat.cpp

src/kernel/notifications_interface.h

src/node/timeoffsets.cpp

src/node/warnings.cpp

src/util/hash_type.h

src/crypto/hex_base.cpp

src/node/eviction.h

src/util/tokenbucket.h

src/crypto/aes.h

src/common/pcp.h

src/util/feefrac.cpp

src/node/transaction.h

src/util/threadnames.cpp

src/common/signmessage.h

src/util/exec.cpp

src/util/signalinterrupt.cpp

src/clientversion.cpp

src/common/signmessage.cpp

src/compat/assumptions.h

src/compat/byteswap.h

src/deploymentinfo.cpp

src/deploymentinfo.h

src/deploymentstatus.cpp

src/deploymentstatus.h

src/dummywallet.cpp

src/external_signer.h

src/init/bitcoin-gui.cpp

src/init/bitcoin-node.cpp

src/init/bitcoin-qt.cpp

src/init/bitcoin-wallet.cpp

src/init/bitcoind.cpp

src/init/common.h

src/interfaces/init.h

src/interfaces/ipc.h

src/key_io.h

src/logging/categories.h

src/logging/timer.h

src/mapport.h

src/musig.h

src/net_permissions.h

src/netgroup.h

src/netmessagemaker.h

src/node/chainstatemanager_args.cpp

src/node/connection_types.h

src/node/context.h

src/node/interface_ui.h

src/node/mempool_args.cpp

src/node/mining_args.cpp

src/node/minisketchwrapper.cpp

src/node/txreconciliation.h

src/policy/fees/estimator_args.cpp

src/policy/fees/estimator_args.h

src/policy/fees/estimator_man.cpp

src/policy/fees/estimator_man.h

src/policy/packages.h

src/policy/rbf.h

src/policy/truc_policy.h

src/pow.h

src/primitives/block.cpp

src/randomenv.h

src/rest.h

src/script/keyorigin.h

src/script/parsing.cpp

src/script/parsing.h

src/script/script_error.h

src/script/sigcache.cpp

src/script/sigcache.h

src/script/solver.h

src/script/verify_flags.h

src/semaphore_grant.h

src/signet.h

src/span.h

src/support/allocators/secure.h

src/support/allocators/zeroafterfree.h

src/util/tokenpipe.cpp

src/util/translation.h

src/util/vector.h

src/versionbits.h

src/versionbits_impl.h

src/wallet/external_signer_scriptpubkeyman.h

src/wallet/fees.h

src/wallet/load.h

src/wallet/receive.h

src/wallet/rpc/wallet.h

src/wallet/types.h

src/walletinitinterface.h

src/zmq/zmqabstractnotifier.cpp

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