From ccccd5190898ece3ac17aa3178f320d091f221df Mon Sep 17 00:00:00 2001 From: MarcoFalke Date: Sun, 12 Apr 2020 23:03:10 -0400 Subject: [PATCH] script: Remove undocumented and unused operator+ --- src/script/script.h | 27 ++------------------- src/test/fuzz/script_ops.cpp | 12 ++++++---- src/test/script_tests.cpp | 46 +++++++++++------------------------- 3 files changed, 24 insertions(+), 61 deletions(-) diff --git a/src/script/script.h b/src/script/script.h index dd2ab2f07..4902d66c1 100644 --- a/src/script/script.h +++ b/src/script/script.h @@ -419,28 +419,15 @@ public: READWRITEAS(CScriptBase, *this); } - CScript& operator+=(const CScript& b) - { - reserve(size() + b.size()); - insert(end(), b.begin(), b.end()); - return *this; - } - - friend CScript operator+(const CScript& a, const CScript& b) - { - CScript ret = a; - ret += b; - return ret; - } - explicit CScript(int64_t b) { operator<<(b); } - explicit CScript(opcodetype b) { operator<<(b); } explicit CScript(const CScriptNum& b) { operator<<(b); } // delete non-existent constructor to defend against future introduction // e.g. via prevector explicit CScript(const std::vector& b) = delete; + /** Delete non-existent operator to defend against future introduction */ + CScript& operator<<(const CScript& b) = delete; CScript& operator<<(int64_t b) { return push_int64(b); } @@ -487,15 +474,6 @@ public: return *this; } - CScript& operator<<(const CScript& b) - { - // I'm not sure if this should push the script or concatenate scripts. - // If there's ever a use for pushing a script onto a script, delete this member fn - assert(!"Warning: Pushing a CScript onto a CScript with << is probably not intended, use + to concatenate!"); - return *this; - } - - bool GetOp(const_iterator& pc, opcodetype& opcodeRet, std::vector& vchRet) const { return GetScriptOp(pc, end(), opcodeRet, &vchRet); @@ -506,7 +484,6 @@ public: return GetScriptOp(pc, end(), opcodeRet, nullptr); } - /** Encode/decode small integers: */ static int DecodeOP_N(opcodetype opcode) { diff --git a/src/test/fuzz/script_ops.cpp b/src/test/fuzz/script_ops.cpp index 0cd129ba7..7d24af20a 100644 --- a/src/test/fuzz/script_ops.cpp +++ b/src/test/fuzz/script_ops.cpp @@ -17,12 +17,16 @@ void test_one_input(const std::vector& buffer) CScript script = ConsumeScript(fuzzed_data_provider); while (fuzzed_data_provider.remaining_bytes() > 0) { switch (fuzzed_data_provider.ConsumeIntegralInRange(0, 7)) { - case 0: - script += ConsumeScript(fuzzed_data_provider); + case 0: { + CScript s = ConsumeScript(fuzzed_data_provider); + script = std::move(s); break; - case 1: - script = script + ConsumeScript(fuzzed_data_provider); + } + case 1: { + const CScript& s = ConsumeScript(fuzzed_data_provider); + script = s; break; + } case 2: script << fuzzed_data_provider.ConsumeIntegral(); break; diff --git a/src/test/script_tests.cpp b/src/test/script_tests.cpp index 26015ca4c..1973348ce 100644 --- a/src/test/script_tests.cpp +++ b/src/test/script_tests.cpp @@ -217,7 +217,6 @@ struct KeyData KeyData() { - key0.Set(vchKey0, vchKey0 + 32, false); key0C.Set(vchKey0, vchKey0 + 32, true); pubkey0 = key0.GetPubKey(); @@ -272,9 +271,9 @@ private: void DoPush(const std::vector& data) { - DoPush(); - push = data; - havePush = true; + DoPush(); + push = data; + havePush = true; } public: @@ -306,10 +305,10 @@ public: return *this; } - TestBuilder& Add(const CScript& _script) + TestBuilder& Opcode(const opcodetype& _op) { DoPush(); - spendTx.vin[0].scriptSig += _script; + spendTx.vin[0].scriptSig << _op; return *this; } @@ -326,8 +325,9 @@ public: return *this; } - TestBuilder& Push(const CScript& _script) { - DoPush(std::vector(_script.begin(), _script.end())); + TestBuilder& Push(const CScript& _script) + { + DoPush(std::vector(_script.begin(), _script.end())); return *this; } @@ -681,22 +681,22 @@ BOOST_AUTO_TEST_CASE(script_build) tests.push_back(TestBuilder(CScript() << OP_2 << ToByteVector(keys.pubkey1C) << ToByteVector(keys.pubkey1C) << OP_2 << OP_CHECKMULTISIG, "2-of-2 with two identical keys and sigs pushed using OP_DUP but no SIGPUSHONLY", 0 - ).Num(0).PushSig(keys.key1).Add(CScript() << OP_DUP)); + ).Num(0).PushSig(keys.key1).Opcode(OP_DUP)); tests.push_back(TestBuilder(CScript() << OP_2 << ToByteVector(keys.pubkey1C) << ToByteVector(keys.pubkey1C) << OP_2 << OP_CHECKMULTISIG, "2-of-2 with two identical keys and sigs pushed using OP_DUP", SCRIPT_VERIFY_SIGPUSHONLY - ).Num(0).PushSig(keys.key1).Add(CScript() << OP_DUP).ScriptError(SCRIPT_ERR_SIG_PUSHONLY)); + ).Num(0).PushSig(keys.key1).Opcode(OP_DUP).ScriptError(SCRIPT_ERR_SIG_PUSHONLY)); tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey2C) << OP_CHECKSIG, "P2SH(P2PK) with non-push scriptSig but no P2SH or SIGPUSHONLY", 0, true - ).PushSig(keys.key2).Add(CScript() << OP_NOP8).PushRedeem()); + ).PushSig(keys.key2).Opcode(OP_NOP8).PushRedeem()); tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey2C) << OP_CHECKSIG, "P2PK with non-push scriptSig but with P2SH validation", 0 - ).PushSig(keys.key2).Add(CScript() << OP_NOP8)); + ).PushSig(keys.key2).Opcode(OP_NOP8)); tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey2C) << OP_CHECKSIG, "P2SH(P2PK) with non-push scriptSig but no SIGPUSHONLY", SCRIPT_VERIFY_P2SH, true - ).PushSig(keys.key2).Add(CScript() << OP_NOP8).PushRedeem().ScriptError(SCRIPT_ERR_SIG_PUSHONLY)); + ).PushSig(keys.key2).Opcode(OP_NOP8).PushRedeem().ScriptError(SCRIPT_ERR_SIG_PUSHONLY)); tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey2C) << OP_CHECKSIG, "P2SH(P2PK) with non-push scriptSig but not P2SH", SCRIPT_VERIFY_SIGPUSHONLY, true - ).PushSig(keys.key2).Add(CScript() << OP_NOP8).PushRedeem().ScriptError(SCRIPT_ERR_SIG_PUSHONLY)); + ).PushSig(keys.key2).Opcode(OP_NOP8).PushRedeem().ScriptError(SCRIPT_ERR_SIG_PUSHONLY)); tests.push_back(TestBuilder(CScript() << OP_2 << ToByteVector(keys.pubkey1C) << ToByteVector(keys.pubkey1C) << OP_2 << OP_CHECKMULTISIG, "2-of-2 with two identical keys and sigs pushed", SCRIPT_VERIFY_SIGPUSHONLY ).Num(0).PushSig(keys.key1).PushSig(keys.key1)); @@ -1470,24 +1470,6 @@ BOOST_AUTO_TEST_CASE(script_HasValidOps) BOOST_CHECK(!script.HasValidOps()); } -BOOST_AUTO_TEST_CASE(script_can_append_self) -{ - CScript s, d; - - s = ScriptFromHex("00"); - s += s; - d = ScriptFromHex("0000"); - BOOST_CHECK(s == d); - - // check doubling a script that's large enough to require reallocation - static const char hex[] = "04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f"; - s = CScript() << ParseHex(hex) << OP_CHECKSIG; - d = CScript() << ParseHex(hex) << OP_CHECKSIG << ParseHex(hex) << OP_CHECKSIG; - s += s; - BOOST_CHECK(s == d); -} - - #if defined(HAVE_CONSENSUS_LIB) /* Test simple (successful) usage of bitcoinconsensus_verify_script */