mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
df8c82bc60
- style fixes
197 lines
6.6 KiB
C++
197 lines
6.6 KiB
C++
/*
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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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* @date 2014
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* JSON interface for the solidity compiler to be used from Javascript.
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*/
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#include <string>
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#include <iostream>
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#include <json/json.h>
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#include <libdevcore/Common.h>
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#include <libdevcore/CommonData.h>
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#include <libdevcore/CommonIO.h>
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#include <libevmcore/Instruction.h>
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#include <libevmcore/Params.h>
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#include <libsolidity/Scanner.h>
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#include <libsolidity/Parser.h>
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#include <libsolidity/ASTPrinter.h>
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#include <libsolidity/NameAndTypeResolver.h>
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#include <libsolidity/Exceptions.h>
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#include <libsolidity/CompilerStack.h>
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#include <libsolidity/SourceReferenceFormatter.h>
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#include <libsolidity/ASTJsonConverter.h>
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using namespace std;
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using namespace dev;
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using namespace solidity;
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string formatError(Exception const& _exception, string const& _name, CompilerStack const& _compiler)
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{
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ostringstream errorOutput;
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SourceReferenceFormatter::printExceptionInformation(errorOutput, _exception, _name, _compiler);
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Json::Value output(Json::objectValue);
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output["error"] = errorOutput.str();
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return Json::FastWriter().write(output);
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}
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Json::Value functionHashes(ContractDefinition const& _contract)
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{
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Json::Value functionHashes(Json::objectValue);
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for (auto const& it: _contract.interfaceFunctions())
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functionHashes[it.second->externalSignature()] = toHex(it.first.ref());
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return functionHashes;
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}
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Json::Value gasToJson(GasEstimator::GasConsumption const& _gas)
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{
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if (_gas.isInfinite || _gas.value > std::numeric_limits<Json::LargestUInt>::max())
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return Json::Value(Json::nullValue);
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else
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return Json::Value(Json::LargestUInt(_gas.value));
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}
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Json::Value estimateGas(CompilerStack const& _compiler, string const& _contract)
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{
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Json::Value gasEstimates(Json::objectValue);
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using Gas = GasEstimator::GasConsumption;
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if (!_compiler.assemblyItems(_contract) && !_compiler.runtimeAssemblyItems(_contract))
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return gasEstimates;
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if (eth::AssemblyItems const* items = _compiler.assemblyItems(_contract))
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{
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Gas gas = GasEstimator::functionalEstimation(*items);
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u256 bytecodeSize(_compiler.runtimeBytecode(_contract).size());
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Json::Value creationGas(Json::arrayValue);
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creationGas[0] = gasToJson(gas);
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creationGas[1] = gasToJson(bytecodeSize * eth::c_createDataGas);
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gasEstimates["creation"] = creationGas;
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}
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if (eth::AssemblyItems const* items = _compiler.runtimeAssemblyItems(_contract))
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{
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ContractDefinition const& contract = _compiler.contractDefinition(_contract);
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Json::Value externalFunctions(Json::objectValue);
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for (auto it: contract.interfaceFunctions())
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{
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string sig = it.second->externalSignature();
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externalFunctions[sig] = gasToJson(GasEstimator::functionalEstimation(*items, sig));
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}
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if (contract.fallbackFunction())
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externalFunctions[""] = gasToJson(GasEstimator::functionalEstimation(*items, "INVALID"));
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gasEstimates["external"] = externalFunctions;
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Json::Value internalFunctions(Json::objectValue);
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for (auto const& it: contract.definedFunctions())
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{
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if (it->isPartOfExternalInterface() || it->isConstructor())
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continue;
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size_t entry = _compiler.functionEntryPoint(_contract, *it);
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GasEstimator::GasConsumption gas = GasEstimator::GasConsumption::infinite();
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if (entry > 0)
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gas = GasEstimator::functionalEstimation(*items, entry, *it);
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FunctionType type(*it);
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string sig = it->name() + "(";
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auto end = type.parameterTypes().end();
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for (auto it = type.parameterTypes().begin(); it != end; ++it)
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sig += (*it)->toString() + (it + 1 == end ? "" : ",");
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sig += ")";
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internalFunctions[sig] = gasToJson(gas);
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}
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gasEstimates["internal"] = internalFunctions;
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}
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return gasEstimates;
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}
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string compile(string _input, bool _optimize)
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{
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StringMap sources;
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sources[""] = _input;
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Json::Value output(Json::objectValue);
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CompilerStack compiler;
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try
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{
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compiler.compile(_input, _optimize);
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}
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catch (ParserError const& exception)
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{
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return formatError(exception, "Parser error", compiler);
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}
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catch (DeclarationError const& exception)
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{
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return formatError(exception, "Declaration error", compiler);
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}
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catch (TypeError const& exception)
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{
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return formatError(exception, "Type error", compiler);
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}
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catch (CompilerError const& exception)
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{
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return formatError(exception, "Compiler error", compiler);
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}
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catch (InternalCompilerError const& exception)
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{
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return formatError(exception, "Internal compiler error", compiler);
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}
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catch (DocstringParsingError const& exception)
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{
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return formatError(exception, "Documentation parsing error", compiler);
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}
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catch (Exception const& exception)
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{
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output["error"] = "Exception during compilation: " + boost::diagnostic_information(exception);
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return Json::FastWriter().write(output);
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}
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catch (...)
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{
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output["error"] = "Unknown exception during compilation.";
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return Json::FastWriter().write(output);
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}
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output["contracts"] = Json::Value(Json::objectValue);
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for (string const& contractName: compiler.contractNames())
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{
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Json::Value contractData(Json::objectValue);
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contractData["solidity_interface"] = compiler.solidityInterface(contractName);
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contractData["interface"] = compiler.interface(contractName);
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contractData["bytecode"] = toHex(compiler.bytecode(contractName));
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contractData["opcodes"] = eth::disassemble(compiler.bytecode(contractName));
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contractData["functionHashes"] = functionHashes(compiler.contractDefinition(contractName));
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contractData["gasEstimates"] = estimateGas(compiler, contractName);
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ostringstream unused;
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contractData["assembly"] = compiler.streamAssembly(unused, contractName, sources, true);
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output["contracts"][contractName] = contractData;
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}
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output["sources"] = Json::Value(Json::objectValue);
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output["sources"][""] = Json::Value(Json::objectValue);
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output["sources"][""]["AST"] = ASTJsonConverter(compiler.ast("")).json();
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return Json::FastWriter().write(output);
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}
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static string outputBuffer;
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extern "C"
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{
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extern char const* compileJSON(char const* _input, bool _optimize)
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{
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outputBuffer = compile(_input, _optimize);
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return outputBuffer.c_str();
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}
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}
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