mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
364 lines
12 KiB
C++
364 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::NATSPEC_USER:
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return getUserDocumentation(_contractDef);
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case DocumentationType::NATSPEC_DEV:
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return getDevDocumentation(_contractDef);
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case DocumentationType::ABI_INTERFACE:
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return getABIInterface(_contractDef);
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case DocumentationType::ABI_SOLIDITY_INTERFACE:
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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 methods(Json::arrayValue);
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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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Json::Value inputs(Json::arrayValue);
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Json::Value outputs(Json::arrayValue);
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auto populateParameters = [](std::vector<ASTPointer<VariableDeclaration>> const& _vars)
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{
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Json::Value params(Json::arrayValue);
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for (ASTPointer<VariableDeclaration> const& var: _vars)
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{
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Json::Value input;
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input["name"] = var->getName();
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input["type"] = var->getType()->toString();
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params.append(input);
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}
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return params;
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};
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method["name"] = it.second->getName();
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method["constant"] = it.second->isDeclaredConst();
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method["inputs"] = populateParameters(it.second->getParameters());
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method["outputs"] = populateParameters(it.second->getReturnParameters());
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methods.append(method);
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}
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return std::unique_ptr<std::string>(new std::string(m_writer.write(methods)));
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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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FunctionDefinition const* f = it.second;
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auto populateParameters = [](vector<ASTPointer<VariableDeclaration>> const& _vars)
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{
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string r = "";
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for (ASTPointer<VariableDeclaration> const& var: _vars)
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r += (r.size() ? "," : "(") + var->getType()->toString() + " " + var->getName();
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return r.size() ? r + ")" : "()";
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};
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ret += "function " + f->getName() + populateParameters(f->getParameters()) + (f->isDeclaredConst() ? "constant " : "");
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if (f->getReturnParameters().size())
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ret += "returns" + populateParameters(f->getReturnParameters());
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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 (nlPos == end) //end of text
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return;
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// else skip the line if a newline was found
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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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