mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
477 lines
14 KiB
C++
477 lines
14 KiB
C++
/*
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This file is part of solidity.
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solidity 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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solidity 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 solidity. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @author Alex Beregszaszi
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* @date 2016
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* Standard JSON compiler interface.
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*/
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#include <libsolidity/interface/StandardCompiler.h>
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#include <libsolidity/interface/SourceReferenceFormatter.h>
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#include <libsolidity/ast/ASTJsonConverter.h>
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#include <libevmasm/Instruction.h>
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#include <libdevcore/JSON.h>
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#include <libdevcore/SHA3.h>
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using namespace std;
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using namespace dev;
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using namespace dev::solidity;
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namespace {
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Json::Value formatError(
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bool _warning,
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string const& _type,
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string const& _component,
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string const& _message,
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string const& _formattedMessage = "",
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Json::Value const& _sourceLocation = Json::Value()
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)
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{
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Json::Value error = Json::objectValue;
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error["type"] = _type;
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error["component"] = _component;
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error["severity"] = _warning ? "warning" : "error";
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error["message"] = _message;
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error["formattedMessage"] = (_formattedMessage.length() > 0) ? _formattedMessage : _message;
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if (_sourceLocation.isObject())
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error["sourceLocation"] = _sourceLocation;
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return error;
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}
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Json::Value formatFatalError(string const& _type, string const& _message)
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{
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Json::Value output = Json::objectValue;
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output["errors"] = Json::arrayValue;
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output["errors"].append(formatError(false, _type, "general", _message));
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return output;
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}
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Json::Value formatErrorWithException(
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Exception const& _exception,
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bool const& _warning,
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string const& _type,
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string const& _component,
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string const& _message,
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function<Scanner const&(string const&)> const& _scannerFromSourceName
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)
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{
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string message;
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string formattedMessage = SourceReferenceFormatter::formatExceptionInformation(_exception, _message, _scannerFromSourceName);
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// NOTE: the below is partially a copy from SourceReferenceFormatter
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SourceLocation const* location = boost::get_error_info<errinfo_sourceLocation>(_exception);
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if (string const* description = boost::get_error_info<errinfo_comment>(_exception))
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message = ((_message.length() > 0) ? (_message + ":") : "") + *description;
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else
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message = _message;
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if (location && location->sourceName)
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{
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Json::Value sourceLocation = Json::objectValue;
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sourceLocation["file"] = *location->sourceName;
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sourceLocation["start"] = location->start;
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sourceLocation["end"] = location->end;
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}
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return formatError(_warning, _type, _component, message, formattedMessage, location);
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}
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/// Returns true iff @a _hash (hex with 0x prefix) is the Keccak256 hash of the binary data in @a _content.
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bool hashMatchesContent(string const& _hash, string const& _content)
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{
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try
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{
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return dev::h256(_hash) == dev::keccak256(_content);
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}
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catch (dev::BadHexCharacter)
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{
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return false;
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}
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}
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StringMap createSourceList(Json::Value const& _input)
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{
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StringMap sources;
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Json::Value const& jsonSources = _input["sources"];
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if (jsonSources.isObject())
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for (auto const& sourceName: jsonSources.getMemberNames())
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sources[sourceName] = jsonSources[sourceName]["content"].asString();
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return sources;
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}
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Json::Value formatLinkReferences(std::map<size_t, std::string> const& linkReferences)
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{
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Json::Value ret(Json::objectValue);
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for (auto const& ref: linkReferences)
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{
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string const& fullname = ref.second;
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size_t colon = fullname.find(':');
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solAssert(colon != string::npos, "");
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string file = fullname.substr(0, colon);
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string name = fullname.substr(colon + 1);
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Json::Value fileObject = ret.get(file, Json::objectValue);
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Json::Value libraryArray = fileObject.get(name, Json::arrayValue);
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Json::Value entry = Json::objectValue;
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entry["start"] = Json::UInt(ref.first);
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entry["length"] = 20;
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libraryArray.append(entry);
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fileObject[name] = libraryArray;
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ret[file] = fileObject;
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}
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return ret;
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}
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Json::Value collectEVMObject(eth::LinkerObject const& _object, string const* _sourceMap)
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{
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Json::Value output = Json::objectValue;
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output["object"] = _object.toHex();
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output["opcodes"] = solidity::disassemble(_object.bytecode);
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output["sourceMap"] = _sourceMap ? *_sourceMap : "";
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output["linkReferences"] = formatLinkReferences(_object.linkReferences);
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return output;
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}
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}
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Json::Value StandardCompiler::compileInternal(Json::Value const& _input)
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{
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m_compilerStack.reset(false);
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if (!_input.isObject())
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return formatFatalError("JSONError", "Input is not a JSON object.");
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if (_input["language"] != "Solidity")
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return formatFatalError("JSONError", "Only \"Solidity\" is supported as a language.");
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Json::Value const& sources = _input["sources"];
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if (!sources)
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return formatFatalError("JSONError", "No input sources specified.");
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Json::Value errors = Json::arrayValue;
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for (auto const& sourceName: sources.getMemberNames())
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{
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string hash;
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if (!sources[sourceName].isObject())
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return formatFatalError("JSONError", "Source input is not a JSON object.");
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if (sources[sourceName]["keccak256"].isString())
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hash = sources[sourceName]["keccak256"].asString();
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if (sources[sourceName]["content"].isString())
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{
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string content = sources[sourceName]["content"].asString();
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if (!hash.empty() && !hashMatchesContent(hash, content))
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errors.append(formatError(
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false,
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"IOError",
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"general",
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"Mismatch between content and supplied hash for \"" + sourceName + "\""
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));
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else
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m_compilerStack.addSource(sourceName, content);
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}
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else if (sources[sourceName]["urls"].isArray())
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{
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if (!m_readFile)
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return formatFatalError("JSONError", "No import callback supplied, but URL is requested.");
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bool found = false;
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vector<string> failures;
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for (auto const& url: sources[sourceName]["urls"])
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{
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ReadFile::Result result = m_readFile(url.asString());
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if (result.success)
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{
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if (!hash.empty() && !hashMatchesContent(hash, result.contentsOrErrorMessage))
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errors.append(formatError(
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false,
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"IOError",
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"general",
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"Mismatch between content and supplied hash for \"" + sourceName + "\" at \"" + url.asString() + "\""
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));
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else
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{
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m_compilerStack.addSource(sourceName, result.contentsOrErrorMessage);
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found = true;
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break;
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}
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}
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else
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failures.push_back("Cannot import url (\"" + url.asString() + "\"): " + result.contentsOrErrorMessage);
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}
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for (auto const& failure: failures)
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{
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/// If the import succeeded, let mark all the others as warnings, otherwise all of them are errors.
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errors.append(formatError(
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found ? true : false,
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"IOError",
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"general",
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failure
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));
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}
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}
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else
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return formatFatalError("JSONError", "Invalid input source specified.");
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}
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Json::Value const& settings = _input.get("settings", Json::Value());
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vector<string> remappings;
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for (auto const& remapping: settings.get("remappings", Json::Value()))
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remappings.push_back(remapping.asString());
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m_compilerStack.setRemappings(remappings);
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Json::Value optimizerSettings = settings.get("optimizer", Json::Value());
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bool optimize = optimizerSettings.get("enabled", Json::Value(false)).asBool();
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unsigned optimizeRuns = optimizerSettings.get("runs", Json::Value(200u)).asUInt();
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map<string, h160> libraries;
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Json::Value jsonLibraries = settings.get("libraries", Json::Value());
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for (auto const& sourceName: jsonLibraries.getMemberNames())
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{
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auto const& jsonSourceName = jsonLibraries[sourceName];
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for (auto const& library: jsonSourceName.getMemberNames())
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// @TODO use libraries only for the given source
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libraries[library] = h160(jsonSourceName[library].asString());
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}
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Json::Value metadataSettings = settings.get("metadata", Json::Value());
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m_compilerStack.useMetadataLiteralSources(metadataSettings.get("useLiteralContent", Json::Value(false)).asBool());
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auto scannerFromSourceName = [&](string const& _sourceName) -> solidity::Scanner const& { return m_compilerStack.scanner(_sourceName); };
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try
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{
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m_compilerStack.compile(optimize, optimizeRuns, libraries);
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for (auto const& error: m_compilerStack.errors())
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{
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auto err = dynamic_pointer_cast<Error const>(error);
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errors.append(formatErrorWithException(
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*error,
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err->type() == Error::Type::Warning,
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err->typeName(),
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"general",
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"",
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scannerFromSourceName
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));
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}
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}
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catch (Error const& _error)
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{
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if (_error.type() == Error::Type::DocstringParsingError)
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errors.append(formatError(
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false,
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"DocstringParsingError",
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"general",
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"Documentation parsing error: " + *boost::get_error_info<errinfo_comment>(_error)
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));
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else
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errors.append(formatErrorWithException(
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_error,
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false,
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_error.typeName(),
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"general",
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"",
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scannerFromSourceName
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));
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}
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catch (CompilerError const& _exception)
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{
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errors.append(formatErrorWithException(
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_exception,
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false,
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"CompilerError",
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"general",
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"Compiler error (" + _exception.lineInfo() + ")",
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scannerFromSourceName
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));
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}
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catch (InternalCompilerError const& _exception)
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{
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errors.append(formatErrorWithException(
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_exception,
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false,
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"InternalCompilerError",
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"general",
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"Internal compiler error (" + _exception.lineInfo() + ")", scannerFromSourceName
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));
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}
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catch (UnimplementedFeatureError const& _exception)
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{
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errors.append(formatErrorWithException(
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_exception,
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false,
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"UnimplementedFeatureError",
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"general",
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"Unimplemented feature (" + _exception.lineInfo() + ")",
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scannerFromSourceName));
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}
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catch (Exception const& _exception)
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{
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errors.append(formatError(
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false,
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"Exception",
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"general",
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"Exception during compilation: " + boost::diagnostic_information(_exception)
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));
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}
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catch (...)
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{
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errors.append(formatError(
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false,
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"Exception",
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"general",
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"Unknown exception during compilation."
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));
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}
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Json::Value output = Json::objectValue;
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if (errors.size() > 0)
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output["errors"] = errors;
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bool parsingSuccess = m_compilerStack.state() >= CompilerStack::State::ParsingSuccessful;
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bool compilationSuccess = m_compilerStack.state() == CompilerStack::State::CompilationSuccessful;
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/// Inconsistent state - stop here to receive error reports from users
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if (!compilationSuccess && (errors.size() == 0))
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return formatFatalError("InternalCompilerError", "No error reported, but compilation failed.");
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output["sources"] = Json::objectValue;
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unsigned sourceIndex = 0;
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for (auto const& source: parsingSuccess ? m_compilerStack.sourceNames() : vector<string>())
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{
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Json::Value sourceResult = Json::objectValue;
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sourceResult["id"] = sourceIndex++;
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sourceResult["ast"] = ASTJsonConverter(false, m_compilerStack.sourceIndices()).toJson(m_compilerStack.ast(source));
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sourceResult["legacyAST"] = ASTJsonConverter(true, m_compilerStack.sourceIndices()).toJson(m_compilerStack.ast(source));
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output["sources"][source] = sourceResult;
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}
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Json::Value contractsOutput = Json::objectValue;
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for (string const& contractName: compilationSuccess ? m_compilerStack.contractNames() : vector<string>())
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{
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size_t colon = contractName.find(':');
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solAssert(colon != string::npos, "");
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string file = contractName.substr(0, colon);
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string name = contractName.substr(colon + 1);
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// ABI, documentation and metadata
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Json::Value contractData(Json::objectValue);
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contractData["abi"] = m_compilerStack.contractABI(contractName);
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contractData["metadata"] = m_compilerStack.onChainMetadata(contractName);
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contractData["userdoc"] = m_compilerStack.natspec(contractName, DocumentationType::NatspecUser);
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contractData["devdoc"] = m_compilerStack.natspec(contractName, DocumentationType::NatspecDev);
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// EVM
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Json::Value evmData(Json::objectValue);
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// @TODO: add ir
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ostringstream tmp;
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m_compilerStack.streamAssembly(tmp, contractName, createSourceList(_input), false);
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evmData["assembly"] = tmp.str();
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evmData["legacyAssembly"] = m_compilerStack.streamAssembly(tmp, contractName, createSourceList(_input), true);
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evmData["methodIdentifiers"] = m_compilerStack.methodIdentifiers(contractName);
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evmData["gasEstimates"] = m_compilerStack.gasEstimates(contractName);
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evmData["bytecode"] = collectEVMObject(
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m_compilerStack.object(contractName),
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m_compilerStack.sourceMapping(contractName)
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);
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evmData["deployedBytecode"] = collectEVMObject(
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m_compilerStack.runtimeObject(contractName),
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m_compilerStack.runtimeSourceMapping(contractName)
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);
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contractData["evm"] = evmData;
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if (!contractsOutput.isMember(file))
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contractsOutput[file] = Json::objectValue;
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contractsOutput[file][name] = contractData;
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}
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output["contracts"] = contractsOutput;
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return output;
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}
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Json::Value StandardCompiler::compile(Json::Value const& _input)
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{
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try
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{
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return compileInternal(_input);
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}
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catch (Json::LogicError const& _exception)
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{
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return formatFatalError("InternalCompilerError", string("JSON logic exception: ") + _exception.what());
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}
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catch (Json::RuntimeError const& _exception)
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{
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return formatFatalError("InternalCompilerError", string("JSON runtime exception: ") + _exception.what());
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}
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catch (Exception const& _exception)
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{
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return formatFatalError("InternalCompilerError", "Internal exception in StandardCompiler::compileInternal: " + boost::diagnostic_information(_exception));
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}
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catch (...)
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{
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return formatFatalError("InternalCompilerError", "Internal exception in StandardCompiler::compileInternal");
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}
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}
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string StandardCompiler::compile(string const& _input)
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{
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Json::Value input;
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Json::Reader reader;
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try
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{
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if (!reader.parse(_input, input, false))
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return jsonCompactPrint(formatFatalError("JSONError", reader.getFormattedErrorMessages()));
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}
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catch(...)
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{
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return "{\"errors\":\"[{\"type\":\"JSONError\",\"component\":\"general\",\"severity\":\"error\",\"message\":\"Error parsing input JSON.\"}]}";
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}
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// cout << "Input: " << input.toStyledString() << endl;
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Json::Value output = compile(input);
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// cout << "Output: " << output.toStyledString() << endl;
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try
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{
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return jsonCompactPrint(output);
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}
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catch(...)
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{
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return "{\"errors\":\"[{\"type\":\"JSONError\",\"component\":\"general\",\"severity\":\"error\",\"message\":\"Error writing output JSON.\"}]}";
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}
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}
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