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365 lines
14 KiB
365 lines
14 KiB
/*
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This file is part of cpp-ethereum.
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cpp-ethereum is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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cpp-ethereum is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @author Christian <c@ethdev.com>
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* @author Gav Wood <g@ethdev.com>
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* @date 2014
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* Full-stack compiler that converts a source code string to bytecode.
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*/
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#include <boost/algorithm/string.hpp>
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#include <libsolidity/AST.h>
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#include <libsolidity/Scanner.h>
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#include <libsolidity/Parser.h>
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#include <libsolidity/GlobalContext.h>
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#include <libsolidity/NameAndTypeResolver.h>
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#include <libsolidity/Compiler.h>
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#include <libsolidity/CompilerStack.h>
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#include <libsolidity/InterfaceHandler.h>
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#include <libdevcrypto/SHA3.h>
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using namespace std;
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namespace dev
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{
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namespace solidity
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{
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const map<string, string> StandardSources = map<string, string>{
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{"coin", R"(import "CoinReg";import "Config";import "configUser";contract coin is configUser{function coin(string3 name, uint denom) {CoinReg(Config(configAddr()).lookup(3)).register(name, denom);}})"},
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{"Coin", R"(contract Coin{function isApprovedFor(address _target,address _proxy)constant returns(bool _r){}function isApproved(address _proxy)constant returns(bool _r){}function sendCoinFrom(address _from,uint256 _val,address _to){}function coinBalanceOf(address _a)constant returns(uint256 _r){}function sendCoin(uint256 _val,address _to){}function coinBalance()constant returns(uint256 _r){}function approve(address _a){}})"},
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{"CoinReg", R"(contract CoinReg{function count()constant returns(uint256 r){}function info(uint256 i)constant returns(address addr,string3 name,uint256 denom){}function register(string3 name,uint256 denom){}function unregister(){}})"},
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{"configUser", R"(contract configUser{function configAddr()constant returns(address a){ return 0xc6d9d2cd449a754c494264e1809c50e34d64562b;}})"},
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{"Config", R"(contract Config{function lookup(uint256 service)constant returns(address a){}function kill(){}function unregister(uint256 id){}function register(uint256 id,address service){}})"},
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{"mortal", R"(import "owned";contract mortal is owned {function kill() { if (msg.sender == owner) suicide(owner); }})"},
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{"named", R"(import "Config";import "NameReg";import "configUser";contract named is configUser {function named(string32 name) {NameReg(Config(configAddr()).lookup(1)).register(name);}})"},
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{"NameReg", R"(contract NameReg{function register(string32 name){}function addressOf(string32 name)constant returns(address addr){}function unregister(){}function nameOf(address addr)constant returns(string32 name){}})"},
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{"owned", R"(contract owned{function owned(){owner = msg.sender;}modifier onlyowner(){if(msg.sender==owner)_}address owner;})"},
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{"service", R"(import "Config";import "configUser";contract service is configUser{function service(uint _n){Config(configAddr()).register(_n, this);}})"},
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{"std", R"(import "owned";import "mortal";import "Config";import "configUser";import "NameReg";import "named";)"}
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};
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CompilerStack::CompilerStack(bool _addStandardSources):
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m_addStandardSources(_addStandardSources), m_parseSuccessful(false)
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{
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if (m_addStandardSources)
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addSources(StandardSources);
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}
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bool CompilerStack::addSource(string const& _name, string const& _content)
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{
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bool existed = m_sources.count(_name) != 0;
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reset(true);
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m_sources[_name].scanner = make_shared<Scanner>(CharStream(expanded(_content)), _name);
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return existed;
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}
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void CompilerStack::setSource(string const& _sourceCode)
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{
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reset();
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addSource("", expanded(_sourceCode));
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}
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void CompilerStack::parse()
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{
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for (auto& sourcePair: m_sources)
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{
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sourcePair.second.scanner->reset();
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sourcePair.second.ast = Parser().parse(sourcePair.second.scanner);
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}
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resolveImports();
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m_globalContext = make_shared<GlobalContext>();
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NameAndTypeResolver resolver(m_globalContext->getDeclarations());
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for (Source const* source: m_sourceOrder)
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resolver.registerDeclarations(*source->ast);
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for (Source const* source: m_sourceOrder)
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for (ASTPointer<ASTNode> const& node: source->ast->getNodes())
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if (ContractDefinition* contract = dynamic_cast<ContractDefinition*>(node.get()))
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{
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m_globalContext->setCurrentContract(*contract);
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resolver.updateDeclaration(*m_globalContext->getCurrentThis());
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resolver.updateDeclaration(*m_globalContext->getCurrentSuper());
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resolver.resolveNamesAndTypes(*contract);
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m_contracts[contract->getName()].contract = contract;
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}
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for (Source const* source: m_sourceOrder)
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for (ASTPointer<ASTNode> const& node: source->ast->getNodes())
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if (ContractDefinition* contract = dynamic_cast<ContractDefinition*>(node.get()))
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{
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m_globalContext->setCurrentContract(*contract);
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resolver.updateDeclaration(*m_globalContext->getCurrentThis());
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resolver.checkTypeRequirements(*contract);
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m_contracts[contract->getName()].contract = contract;
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}
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m_parseSuccessful = true;
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}
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void CompilerStack::parse(string const& _sourceCode)
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{
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setSource(_sourceCode);
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parse();
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}
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vector<string> CompilerStack::getContractNames() const
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{
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if (!m_parseSuccessful)
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BOOST_THROW_EXCEPTION(CompilerError() << errinfo_comment("Parsing was not successful."));
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vector<string> contractNames;
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for (auto const& contract: m_contracts)
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contractNames.push_back(contract.first);
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return contractNames;
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}
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////// BEGIN: TEMPORARY ONLY
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///
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/// NOTE: THIS INVALIDATES SOURCE POINTERS AND CAN CRASH THE COMPILER
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///
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/// remove once import works properly and we have genesis contracts
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string CompilerStack::expanded(string const& _sourceCode)
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{
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const map<string, string> c_standardSources = map<string, string>{
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{ "Config", "contract Config{function lookup(uint256 service)constant returns(address a){}function kill(){}function unregister(uint256 id){}function register(uint256 id,address service){}}" },
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{ "Coin", "contract Coin{function isApprovedFor(address _target,address _proxy)constant returns(bool _r){}function isApproved(address _proxy)constant returns(bool _r){}function sendCoinFrom(address _from,uint256 _val,address _to){}function coinBalanceOf(address _a)constant returns(uint256 _r){}function sendCoin(uint256 _val,address _to){}function coinBalance()constant returns(uint256 _r){}function approve(address _a){}}"},
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{ "CoinReg", "contract CoinReg{function count()constant returns(uint256 r){}function info(uint256 i)constant returns(address addr,string3 name,uint256 denom){}function register(string3 name,uint256 denom){}function unregister(){}}" },
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{ "coin", "#require CoinReg\ncontract coin {function coin(string3 name, uint denom) {CoinReg(Config().lookup(3)).register(name, denom);}}" },
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{ "service", "#require Config\ncontract service{function service(uint _n){Config().register(_n, this);}}" },
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{ "owned", "contract owned{function owned(){owner = msg.sender;}modifier onlyowner(){if(msg.sender==owner)_}address owner;}" },
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{ "mortal", "#require owned\ncontract mortal is owned {function kill() { if (msg.sender == owner) suicide(owner); }}" },
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{ "NameReg", "contract NameReg{function register(string32 name){}function addressOf(string32 name)constant returns(address addr){}function unregister(){}function nameOf(address addr)constant returns(string32 name){}}" },
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{ "named", "#require Config NameReg\ncontract named {function named(string32 name) {NameReg(Config().lookup(1)).register(name);}}" },
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{ "std", "#require owned mortal Config NameReg named" },
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};
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string sub;
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set<string> got;
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function<string(string const&)> localExpanded;
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localExpanded = [&](string const& s) -> string
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{
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string ret = s;
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for (size_t p = 0; p != string::npos;)
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if ((p = ret.find("#require ")) != string::npos)
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{
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string n = ret.substr(p + 9, ret.find_first_of('\n', p + 9) - p - 9);
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ret.replace(p, n.size() + 9, "");
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vector<string> rs;
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boost::split(rs, n, boost::is_any_of(" \t,"), boost::token_compress_on);
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for (auto const& r: rs)
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if (!got.count(r))
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{
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if (c_standardSources.count(r))
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sub.append("\n" + localExpanded(c_standardSources.at(r)) + "\n");
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got.insert(r);
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}
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}
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// TODO: remove once we have genesis contracts.
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else if ((p = ret.find("Config()")) != string::npos)
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ret.replace(p, 8, "Config(0xc6d9d2cd449a754c494264e1809c50e34d64562b)");
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return ret;
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};
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return sub + localExpanded(_sourceCode);
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}
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////// END: TEMPORARY ONLY
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void CompilerStack::compile(bool _optimize)
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{
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if (!m_parseSuccessful)
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parse();
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map<ContractDefinition const*, bytes const*> contractBytecode;
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for (Source const* source: m_sourceOrder)
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for (ASTPointer<ASTNode> const& node: source->ast->getNodes())
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if (ContractDefinition* contract = dynamic_cast<ContractDefinition*>(node.get()))
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{
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shared_ptr<Compiler> compiler = make_shared<Compiler>(_optimize);
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compiler->compileContract(*contract, contractBytecode);
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Contract& compiledContract = m_contracts[contract->getName()];
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compiledContract.bytecode = compiler->getAssembledBytecode();
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compiledContract.runtimeBytecode = compiler->getRuntimeBytecode();
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compiledContract.compiler = move(compiler);
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contractBytecode[compiledContract.contract] = &compiledContract.bytecode;
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}
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}
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bytes const& CompilerStack::compile(string const& _sourceCode, bool _optimize)
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{
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parse(_sourceCode);
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compile(_optimize);
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return getBytecode();
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}
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bytes const& CompilerStack::getBytecode(string const& _contractName) const
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{
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return getContract(_contractName).bytecode;
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}
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bytes const& CompilerStack::getRuntimeBytecode(string const& _contractName) const
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{
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return getContract(_contractName).runtimeBytecode;
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}
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dev::h256 CompilerStack::getContractCodeHash(string const& _contractName) const
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{
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return dev::sha3(getRuntimeBytecode(_contractName));
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}
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void CompilerStack::streamAssembly(ostream& _outStream, string const& _contractName) const
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{
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getContract(_contractName).compiler->streamAssembly(_outStream);
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}
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string const& CompilerStack::getInterface(string const& _contractName) const
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{
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return getMetadata(_contractName, DocumentationType::ABIInterface);
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}
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string const& CompilerStack::getSolidityInterface(string const& _contractName) const
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{
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return getMetadata(_contractName, DocumentationType::ABISolidityInterface);
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}
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string const& CompilerStack::getMetadata(string const& _contractName, DocumentationType _type) const
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{
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if (!m_parseSuccessful)
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BOOST_THROW_EXCEPTION(CompilerError() << errinfo_comment("Parsing was not successful."));
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Contract const& contract = getContract(_contractName);
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std::unique_ptr<string const>* doc;
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switch (_type)
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{
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case DocumentationType::NatspecUser:
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doc = &contract.userDocumentation;
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break;
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case DocumentationType::NatspecDev:
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doc = &contract.devDocumentation;
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break;
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case DocumentationType::ABIInterface:
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doc = &contract.interface;
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break;
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case DocumentationType::ABISolidityInterface:
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doc = &contract.solidityInterface;
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break;
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default:
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BOOST_THROW_EXCEPTION(InternalCompilerError() << errinfo_comment("Illegal documentation type."));
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}
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if (!*doc)
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*doc = contract.interfaceHandler->getDocumentation(*contract.contract, _type);
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return *(*doc);
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}
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Scanner const& CompilerStack::getScanner(string const& _sourceName) const
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{
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return *getSource(_sourceName).scanner;
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}
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SourceUnit const& CompilerStack::getAST(string const& _sourceName) const
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{
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return *getSource(_sourceName).ast;
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}
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ContractDefinition const& CompilerStack::getContractDefinition(string const& _contractName) const
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{
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return *getContract(_contractName).contract;
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}
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bytes CompilerStack::staticCompile(std::string const& _sourceCode, bool _optimize)
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{
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CompilerStack stack;
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return stack.compile(_sourceCode, _optimize);
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}
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void CompilerStack::reset(bool _keepSources)
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{
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m_parseSuccessful = false;
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if (_keepSources)
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for (auto sourcePair: m_sources)
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sourcePair.second.reset();
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else
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{
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m_sources.clear();
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if (m_addStandardSources)
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addSources(StandardSources);
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}
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m_globalContext.reset();
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m_sourceOrder.clear();
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m_contracts.clear();
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}
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void CompilerStack::resolveImports()
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{
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// topological sorting (depth first search) of the import graph, cutting potential cycles
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vector<Source const*> sourceOrder;
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set<Source const*> sourcesSeen;
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function<void(Source const*)> toposort = [&](Source const* _source)
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{
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if (sourcesSeen.count(_source))
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return;
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sourcesSeen.insert(_source);
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for (ASTPointer<ASTNode> const& node: _source->ast->getNodes())
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if (ImportDirective const* import = dynamic_cast<ImportDirective*>(node.get()))
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{
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string const& id = import->getIdentifier();
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if (!m_sources.count(id))
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BOOST_THROW_EXCEPTION(ParserError()
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<< errinfo_sourceLocation(import->getLocation())
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<< errinfo_comment("Source not found."));
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toposort(&m_sources[id]);
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}
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sourceOrder.push_back(_source);
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};
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for (auto const& sourcePair: m_sources)
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toposort(&sourcePair.second);
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swap(m_sourceOrder, sourceOrder);
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}
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CompilerStack::Contract const& CompilerStack::getContract(string const& _contractName) const
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{
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if (m_contracts.empty())
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BOOST_THROW_EXCEPTION(CompilerError() << errinfo_comment("No compiled contracts found."));
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string contractName = _contractName;
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if (_contractName.empty())
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// try to find some user-supplied contract
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for (auto const& it: m_sources)
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if (!StandardSources.count(it.first))
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for (ASTPointer<ASTNode> const& node: it.second.ast->getNodes())
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if (auto contract = dynamic_cast<ContractDefinition const*>(node.get()))
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contractName = contract->getName();
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auto it = m_contracts.find(contractName);
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if (it == m_contracts.end())
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BOOST_THROW_EXCEPTION(CompilerError() << errinfo_comment("Contract " + _contractName + " not found."));
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return it->second;
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}
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CompilerStack::Source const& CompilerStack::getSource(string const& _sourceName) const
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{
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auto it = m_sources.find(_sourceName);
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if (it == m_sources.end())
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BOOST_THROW_EXCEPTION(CompilerError() << errinfo_comment("Given source file not found."));
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return it->second;
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}
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CompilerStack::Contract::Contract(): interfaceHandler(make_shared<InterfaceHandler>()) {}
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}
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}
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