solidity/solc/jsonCompiler.cpp at develop · virtual-bug/solidity · GitHub

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This file is part of solidity.

solidity is free software: you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation, either version 3 of the License, or

(at your option) any later version.

solidity is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

GNU General Public License for more details.

You should have received a copy of the GNU General Public License

along with solidity. If not, see <http://www.gnu.org/licenses/>.

/**

* @author Christian <c@ethdev.com>

* @date 2014

* JSON interface for the solidity compiler to be used from Javascript.

#include <solc/jsonCompiler.h>

#include <libdevcore/Common.h>

#include <libdevcore/JSON.h>

#include <libsolidity/interface/StandardCompiler.h>

#include <libsolidity/interface/Version.h>

#include <string>

#include "license.h"

using namespace std;

using namespace dev;

using namespace solidity;

namespace

{

ReadCallback::Callback wrapReadCallback(CStyleReadFileCallback _readCallback = nullptr)

{

ReadCallback::Callback readCallback;

if (_readCallback)

{

readCallback = [=](string const& _path)

{

char* contents_c = nullptr;

char* error_c = nullptr;

_readCallback(_path.c_str(), &contents_c, &error_c);

ReadCallback::Result result;

result.success = true;

if (!contents_c && !error_c)

{

result.success = false;

result.responseOrErrorMessage = "File not found.";

}

if (contents_c)

{

result.success = true;

result.responseOrErrorMessage = string(contents_c);

free(contents_c);

}

if (error_c)

{

result.success = false;

result.responseOrErrorMessage = string(error_c);

free(error_c);

}

return result;

};

}

return readCallback;

}

/// Translates a gas value as a string to a JSON number or null

Json::Value gasToJson(Json::Value const& _value)

{

if (_value.isObject())

{

Json::Value ret = Json::objectValue;

for (auto const& sig: _value.getMemberNames())

ret[sig] = gasToJson(_value[sig]);

return ret;

}

if (_value == "infinite")

return Json::Value(Json::nullValue);

u256 value(_value.asString());

if (value > std::numeric_limits<Json::LargestUInt>::max())

return Json::Value(Json::nullValue);

else

return Json::Value(Json::LargestUInt(value));

}

Json::Value translateGasEstimates(Json::Value const& estimates)

{

Json::Value output(Json::objectValue);

if (estimates["creation"].isObject())

{

Json::Value creation(Json::arrayValue);

creation[0] = gasToJson(estimates["creation"]["executionCost"]);

creation[1] = gasToJson(estimates["creation"]["codeDepositCost"]);

output["creation"] = creation;

}

else

output["creation"] = Json::objectValue;

output["external"] = gasToJson(estimates.get("external", Json::objectValue));

output["internal"] = gasToJson(estimates.get("internal", Json::objectValue));

return output;

}

string compile(StringMap const& _sources, bool _optimize, CStyleReadFileCallback _readCallback)

{

/// create new JSON input format

Json::Value input = Json::objectValue;

input["language"] = "Solidity";

input["sources"] = Json::objectValue;

for (auto const& source: _sources)

{

input["sources"][source.first] = Json::objectValue;

input["sources"][source.first]["content"] = source.second;

}

input["settings"] = Json::objectValue;

input["settings"]["optimizer"] = Json::objectValue;

input["settings"]["optimizer"]["enabled"] = _optimize;

input["settings"]["optimizer"]["runs"] = 200;

StandardCompiler compiler(wrapReadCallback(_readCallback));

Json::Value ret = compiler.compile(input);

/// transform JSON to match the old format

// {

// "errors": [ "Error 1", "Error 2" ],

// "sourceList": [ "sourcename1", "sourcename2" ],

// "sources": {

// "sourcename1": {

// "AST": {}

// }

// },

// "contracts": {

// "Contract1": {

// "interface": "[...abi...]",

// "bytecode": "ff0011...",

// "runtimeBytecode": "ff0011",

// "opcodes": "PUSH 1 POP STOP",

// "metadata": "{...metadata...}",

// "functionHashes": {

// "test(uint256)": "11ff2233"

// },

// "gasEstimates": {

// "creation": [ 224, 42000 ],

// "external": {

// "11ff2233": null,

// "3322ff11": 1234

// },

// "internal": {

// }

// },

// "srcmap" = "0:1:2",

// "srcmapRuntime" = "0:1:2",

// "assembly" = {}

// }

Json::Value output = Json::objectValue;

if (ret.isMember("errors"))

{

output["errors"] = Json::arrayValue;

for (auto const& error: ret["errors"])

output["errors"].append(

!error["formattedMessage"].empty() ? error["formattedMessage"] : error["message"]

);

}

output["sourceList"] = Json::arrayValue;

for (auto const& source: _sources)

output["sourceList"].append(source.first);

if (ret.isMember("sources"))

{

output["sources"] = Json::objectValue;

for (auto const& sourceName: ret["sources"].getMemberNames())

{

output["sources"][sourceName] = Json::objectValue;

output["sources"][sourceName]["AST"] = ret["sources"][sourceName]["legacyAST"];

}

if (ret.isMember("contracts"))

{

output["contracts"] = Json::objectValue;

for (auto const& sourceName: ret["contracts"].getMemberNames())

for (auto const& contractName: ret["contracts"][sourceName].getMemberNames())

{

Json::Value contractInput = ret["contracts"][sourceName][contractName];

Json::Value contractOutput = Json::objectValue;

contractOutput["interface"] = dev::jsonCompactPrint(contractInput["abi"]);

contractOutput["metadata"] = contractInput["metadata"];

contractOutput["functionHashes"] = contractInput["evm"]["methodIdentifiers"];

contractOutput["gasEstimates"] = translateGasEstimates(contractInput["evm"]["gasEstimates"]);

contractOutput["assembly"] = contractInput["evm"]["legacyAssembly"];

contractOutput["bytecode"] = contractInput["evm"]["bytecode"]["object"];

contractOutput["opcodes"] = contractInput["evm"]["bytecode"]["opcodes"];

contractOutput["srcmap"] = contractInput["evm"]["bytecode"]["sourceMap"];

contractOutput["runtimeBytecode"] = contractInput["evm"]["deployedBytecode"]["object"];

contractOutput["srcmapRuntime"] = contractInput["evm"]["deployedBytecode"]["sourceMap"];

output["contracts"][sourceName + ":" + contractName] = contractOutput;

}

try

{

return dev::jsonCompactPrint(output);

}

catch (...)

{

return "{\"errors\":[\"Unknown error while generating JSON.\"]}";

}

string compileMulti(string const& _input, bool _optimize, CStyleReadFileCallback _readCallback = nullptr)

{

Json::Reader reader;

Json::Value input;

if (!reader.parse(_input, input, false))

{

Json::Value errors(Json::arrayValue);

errors.append("Error parsing input JSON: " + reader.getFormattedErrorMessages());

Json::Value output(Json::objectValue);

output["errors"] = errors;

return dev::jsonCompactPrint(output);

}

else

{

StringMap sources;

Json::Value jsonSources = input["sources"];

if (jsonSources.isObject())

for (auto const& sourceName: jsonSources.getMemberNames())

sources[sourceName] = jsonSources[sourceName].asString();

return compile(sources, _optimize, _readCallback);

}

string compileSingle(string const& _input, bool _optimize)

{

StringMap sources;

sources[""] = _input;

return compile(sources, _optimize, nullptr);

}

string compileStandardInternal(string const& _input, CStyleReadFileCallback _readCallback = nullptr)

{

StandardCompiler compiler(wrapReadCallback(_readCallback));

return compiler.compile(_input);

}

static string s_outputBuffer;

extern "C"

{

extern char const* license()

{

static string fullLicenseText = otherLicenses + licenseText;

return fullLicenseText.c_str();

}

extern char const* version()

{

return VersionString.c_str();

}

extern char const* compileJSON(char const* _input, bool _optimize)

{

s_outputBuffer = compileSingle(_input, _optimize);

return s_outputBuffer.c_str();

}

extern char const* compileJSONMulti(char const* _input, bool _optimize)

{

s_outputBuffer = compileMulti(_input, _optimize);

return s_outputBuffer.c_str();

}

extern char const* compileJSONCallback(char const* _input, bool _optimize, CStyleReadFileCallback _readCallback)

{

s_outputBuffer = compileMulti(_input, _optimize, _readCallback);

return s_outputBuffer.c_str();

}

extern char const* compileStandard(char const* _input, CStyleReadFileCallback _readCallback)

{

s_outputBuffer = compileStandardInternal(_input, _readCallback);

return s_outputBuffer.c_str();

}

solidity/solc/jsonCompiler.cpp at develop · virtual-bug/solidity · GitHub

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