mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
392 lines
12 KiB
C++
392 lines
12 KiB
C++
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#include <libsolidity/InterfaceHandler.h>
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#include <libsolidity/AST.h>
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#include <libsolidity/CompilerStack.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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/* -- public -- */
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InterfaceHandler::InterfaceHandler()
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{
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m_lastTag = DocTagType::None;
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}
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std::unique_ptr<std::string> InterfaceHandler::getDocumentation(ContractDefinition const& _contractDef,
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DocumentationType _type)
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{
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switch(_type)
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{
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case DocumentationType::NatspecUser:
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return getUserDocumentation(_contractDef);
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case DocumentationType::NatspecDev:
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return getDevDocumentation(_contractDef);
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case DocumentationType::ABIInterface:
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return getABIInterface(_contractDef);
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case DocumentationType::ABISolidityInterface:
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return getABISolidityInterface(_contractDef);
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}
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BOOST_THROW_EXCEPTION(InternalCompilerError() << errinfo_comment("Unknown documentation type"));
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return nullptr;
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}
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std::unique_ptr<std::string> InterfaceHandler::getABIInterface(ContractDefinition const& _contractDef)
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{
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Json::Value abi(Json::arrayValue);
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for (auto const& it: _contractDef.getInterfaceFunctions())
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{
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auto populateParameters = [](vector<string> const& _paramNames, vector<string> const& _paramTypes)
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{
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Json::Value params(Json::arrayValue);
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solAssert(_paramNames.size() == _paramTypes.size(), "Names and types vector size does not match");
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for (unsigned i = 0; i < _paramNames.size(); ++i)
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{
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Json::Value param;
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param["name"] = _paramNames[i];
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param["type"] = _paramTypes[i];
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params.append(param);
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}
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return params;
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};
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Json::Value method;
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method["type"] = "function";
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method["name"] = it.second->getDeclaration().getName();
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method["constant"] = it.second->isConstant();
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method["inputs"] = populateParameters(it.second->getParameterNames(),
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it.second->getParameterTypeNames());
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method["outputs"] = populateParameters(it.second->getReturnParameterNames(),
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it.second->getReturnParameterTypeNames());
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abi.append(method);
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}
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for (auto const& it: _contractDef.getInterfaceEvents())
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{
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Json::Value event;
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event["type"] = "event";
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event["name"] = it->getName();
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Json::Value params(Json::arrayValue);
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for (auto const& p: it->getParameters())
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{
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Json::Value input;
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input["name"] = p->getName();
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input["type"] = p->getType()->toString();
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input["indexed"] = p->isIndexed();
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params.append(input);
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}
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event["inputs"] = params;
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abi.append(event);
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}
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return std::unique_ptr<std::string>(new std::string(m_writer.write(abi)));
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}
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unique_ptr<string> InterfaceHandler::getABISolidityInterface(ContractDefinition const& _contractDef)
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{
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string ret = "contract " + _contractDef.getName() + "{";
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for (auto const& it: _contractDef.getInterfaceFunctions())
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{
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auto populateParameters = [](vector<string> const& _paramNames,
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vector<string> const& _paramTypes)
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{
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string r = "";
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solAssert(_paramNames.size() == _paramTypes.size(), "Names and types vector size does not match");
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for (unsigned i = 0; i < _paramNames.size(); ++i)
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r += (r.size() ? "," : "(") + _paramTypes[i] + " " + _paramNames[i];
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return r.size() ? r + ")" : "()";
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};
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ret += "function " + it.second->getDeclaration().getName() +
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populateParameters(it.second->getParameterNames(), it.second->getParameterTypeNames()) +
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(it.second->isConstant() ? "constant " : "");
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if (it.second->getReturnParameterTypes().size())
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ret += "returns" + populateParameters(it.second->getReturnParameterNames(), it.second->getReturnParameterTypeNames());
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else if (ret.back() == ' ')
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ret.pop_back();
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ret += "{}";
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}
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return unique_ptr<string>(new string(ret + "}"));
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}
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std::unique_ptr<std::string> InterfaceHandler::getUserDocumentation(ContractDefinition const& _contractDef)
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{
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Json::Value doc;
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Json::Value methods(Json::objectValue);
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for (auto const& it: _contractDef.getInterfaceFunctions())
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{
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Json::Value user;
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auto strPtr = it.second->getDocumentation();
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if (strPtr)
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{
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resetUser();
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parseDocString(*strPtr, CommentOwner::Function);
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if (!m_notice.empty())
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{// since @notice is the only user tag if missing function should not appear
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user["notice"] = Json::Value(m_notice);
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methods[it.second->getCanonicalSignature()] = user;
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}
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}
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}
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doc["methods"] = methods;
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return std::unique_ptr<std::string>(new std::string(m_writer.write(doc)));
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}
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std::unique_ptr<std::string> InterfaceHandler::getDevDocumentation(ContractDefinition const& _contractDef)
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{
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// LTODO: Somewhere in this function warnings for mismatch of param names
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// should be thrown
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Json::Value doc;
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Json::Value methods(Json::objectValue);
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auto contractDoc = _contractDef.getDocumentation();
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if (contractDoc)
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{
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m_contractAuthor.clear();
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m_title.clear();
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parseDocString(*contractDoc, CommentOwner::Contract);
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if (!m_contractAuthor.empty())
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doc["author"] = m_contractAuthor;
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if (!m_title.empty())
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doc["title"] = m_title;
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}
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for (auto const& it: _contractDef.getInterfaceFunctions())
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{
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Json::Value method;
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auto strPtr = it.second->getDocumentation();
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if (strPtr)
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{
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resetDev();
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parseDocString(*strPtr, CommentOwner::Function);
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if (!m_dev.empty())
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method["details"] = Json::Value(m_dev);
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if (!m_author.empty())
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method["author"] = m_author;
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Json::Value params(Json::objectValue);
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for (auto const& pair: m_params)
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params[pair.first] = pair.second;
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if (!m_params.empty())
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method["params"] = params;
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if (!m_return.empty())
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method["return"] = m_return;
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if (!method.empty()) // add the function, only if we have any documentation to add
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methods[it.second->getCanonicalSignature()] = method;
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}
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}
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doc["methods"] = methods;
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return std::unique_ptr<std::string>(new std::string(m_writer.write(doc)));
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}
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/* -- private -- */
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void InterfaceHandler::resetUser()
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{
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m_notice.clear();
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}
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void InterfaceHandler::resetDev()
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{
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m_dev.clear();
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m_author.clear();
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m_return.clear();
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m_params.clear();
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}
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static inline std::string::const_iterator skipLineOrEOS(std::string::const_iterator _nlPos,
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std::string::const_iterator _end)
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{
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return (_nlPos == _end) ? _end : ++_nlPos;
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}
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std::string::const_iterator InterfaceHandler::parseDocTagLine(std::string::const_iterator _pos,
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std::string::const_iterator _end,
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std::string& _tagString,
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DocTagType _tagType,
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bool _appending)
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{
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auto nlPos = std::find(_pos, _end, '\n');
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if (_appending && _pos < _end && *_pos != ' ')
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_tagString += " ";
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std::copy(_pos, nlPos, back_inserter(_tagString));
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m_lastTag = _tagType;
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return skipLineOrEOS(nlPos, _end);
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}
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std::string::const_iterator InterfaceHandler::parseDocTagParam(std::string::const_iterator _pos,
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std::string::const_iterator _end)
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{
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// find param name
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auto currPos = std::find(_pos, _end, ' ');
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if (currPos == _end)
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BOOST_THROW_EXCEPTION(DocstringParsingError() << errinfo_comment("End of param name not found" + std::string(_pos, _end)));
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auto paramName = std::string(_pos, currPos);
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currPos += 1;
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auto nlPos = std::find(currPos, _end, '\n');
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auto paramDesc = std::string(currPos, nlPos);
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m_params.push_back(std::make_pair(paramName, paramDesc));
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m_lastTag = DocTagType::Param;
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return skipLineOrEOS(nlPos, _end);
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}
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std::string::const_iterator InterfaceHandler::appendDocTagParam(std::string::const_iterator _pos,
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std::string::const_iterator _end)
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{
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// Should never be called with an empty vector
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solAssert(!m_params.empty(), "Internal: Tried to append to empty parameter");
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auto pair = m_params.back();
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if (_pos < _end && *_pos != ' ')
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pair.second += " ";
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auto nlPos = std::find(_pos, _end, '\n');
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std::copy(_pos, nlPos, back_inserter(pair.second));
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m_params.at(m_params.size() - 1) = pair;
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return skipLineOrEOS(nlPos, _end);
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}
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std::string::const_iterator InterfaceHandler::parseDocTag(std::string::const_iterator _pos,
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std::string::const_iterator _end,
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std::string const& _tag,
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CommentOwner _owner)
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{
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// LTODO: need to check for @(start of a tag) between here and the end of line
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// for all cases. Also somehow automate list of acceptable tags for each
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// language construct since current way does not scale well.
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if (m_lastTag == DocTagType::None || _tag != "")
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{
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if (_tag == "dev")
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return parseDocTagLine(_pos, _end, m_dev, DocTagType::Dev, false);
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else if (_tag == "notice")
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return parseDocTagLine(_pos, _end, m_notice, DocTagType::Notice, false);
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else if (_tag == "return")
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return parseDocTagLine(_pos, _end, m_return, DocTagType::Return, false);
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else if (_tag == "author")
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{
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if (_owner == CommentOwner::Contract)
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return parseDocTagLine(_pos, _end, m_contractAuthor, DocTagType::Author, false);
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else if (_owner == CommentOwner::Function)
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return parseDocTagLine(_pos, _end, m_author, DocTagType::Author, false);
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else
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// LTODO: for now this else makes no sense but later comments will go to more language constructs
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BOOST_THROW_EXCEPTION(DocstringParsingError() << errinfo_comment("@author tag is legal only for contracts"));
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}
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else if (_tag == "title")
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{
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if (_owner == CommentOwner::Contract)
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return parseDocTagLine(_pos, _end, m_title, DocTagType::Title, false);
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else
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// LTODO: Unknown tag, throw some form of warning and not just an exception
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BOOST_THROW_EXCEPTION(DocstringParsingError() << errinfo_comment("@title tag is legal only for contracts"));
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}
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else if (_tag == "param")
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return parseDocTagParam(_pos, _end);
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else
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// LTODO: Unknown tag, throw some form of warning and not just an exception
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BOOST_THROW_EXCEPTION(DocstringParsingError() << errinfo_comment("Unknown tag " + _tag + " encountered"));
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}
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else
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return appendDocTag(_pos, _end, _owner);
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}
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std::string::const_iterator InterfaceHandler::appendDocTag(std::string::const_iterator _pos,
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std::string::const_iterator _end,
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CommentOwner _owner)
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{
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switch (m_lastTag)
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{
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case DocTagType::Dev:
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return parseDocTagLine(_pos, _end, m_dev, DocTagType::Dev, true);
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case DocTagType::Notice:
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return parseDocTagLine(_pos, _end, m_notice, DocTagType::Notice, true);
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case DocTagType::Return:
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return parseDocTagLine(_pos, _end, m_return, DocTagType::Return, true);
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case DocTagType::Author:
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if (_owner == CommentOwner::Contract)
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return parseDocTagLine(_pos, _end, m_contractAuthor, DocTagType::Author, true);
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else if (_owner == CommentOwner::Function)
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return parseDocTagLine(_pos, _end, m_author, DocTagType::Author, true);
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else
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// LTODO: Unknown tag, throw some form of warning and not just an exception
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BOOST_THROW_EXCEPTION(DocstringParsingError() << errinfo_comment("@author tag in illegal comment"));
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case DocTagType::Title:
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if (_owner == CommentOwner::Contract)
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return parseDocTagLine(_pos, _end, m_title, DocTagType::Title, true);
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else
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// LTODO: Unknown tag, throw some form of warning and not just an exception
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BOOST_THROW_EXCEPTION(DocstringParsingError() << errinfo_comment("@title tag in illegal comment"));
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case DocTagType::Param:
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return appendDocTagParam(_pos, _end);
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default:
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BOOST_THROW_EXCEPTION(InternalCompilerError() << errinfo_comment("Internal: Illegal documentation tag type"));
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break;
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}
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}
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static inline std::string::const_iterator getFirstSpaceOrNl(std::string::const_iterator _pos,
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std::string::const_iterator _end)
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{
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auto spacePos = std::find(_pos, _end, ' ');
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auto nlPos = std::find(_pos, _end, '\n');
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return (spacePos < nlPos) ? spacePos : nlPos;
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}
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void InterfaceHandler::parseDocString(std::string const& _string, CommentOwner _owner)
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{
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auto currPos = _string.begin();
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auto end = _string.end();
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while (currPos != end)
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{
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auto tagPos = std::find(currPos, end, '@');
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auto nlPos = std::find(currPos, end, '\n');
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if (tagPos != end && tagPos < nlPos)
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{
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// we found a tag
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auto tagNameEndPos = getFirstSpaceOrNl(tagPos, end);
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if (tagNameEndPos == end)
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BOOST_THROW_EXCEPTION(DocstringParsingError() <<
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errinfo_comment("End of tag " + std::string(tagPos, tagNameEndPos) + "not found"));
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currPos = parseDocTag(tagNameEndPos + 1, end, std::string(tagPos + 1, tagNameEndPos), _owner);
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}
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else if (m_lastTag != DocTagType::None) // continuation of the previous tag
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currPos = appendDocTag(currPos, end, _owner);
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else if (currPos != end)
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{
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// if it begins without a tag then consider it as @notice
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if (currPos == _string.begin())
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{
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currPos = parseDocTag(currPos, end, "notice", CommentOwner::Function);
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continue;
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}
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else if (nlPos == end) //end of text
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return;
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// else skip the line if a newline was found and we get here
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currPos = nlPos + 1;
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}
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}
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}
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} //solidity NS
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} // dev NS
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