Rename jsonCompiler to libsolc

3 files changed, 353 insertions, 0 deletions

diff --git a/libsolc/CMakeLists.txt b/libsolc/CMakeLists.txt
new file mode 100644
index 00000000..e67583dd
--- /dev/null
+++ b/libsolc/CMakeLists.txt
@@ -0,0 +1,9 @@
+if (EMSCRIPTEN)
+	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -s EXPORTED_FUNCTIONS='[\"_compileJSON\",\"_license\",\"_version\",\"_compileJSONMulti\",\"_compileJSONCallback\",\"_compileStandard\"]' -s RESERVED_FUNCTION_POINTERS=20")
+	add_executable(soljson libsolc.cpp)
+	target_link_libraries(soljson PRIVATE solidity)
+else()
+	add_library(libsolc libsolc.cpp)
+	set_target_properties(libsolc PROPERTIES OUTPUT_NAME solc)
+	target_link_libraries(libsolc PRIVATE solidity)
+endif()
diff --git a/libsolc/libsolc.cpp b/libsolc/libsolc.cpp
new file mode 100644
index 00000000..3a6e1521
--- /dev/null
+++ b/libsolc/libsolc.cpp
@@ -0,0 +1,302 @@
+/*
+	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 <libsolc/libsolc.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;
+
+	// Enable all SourceUnit-level outputs.
+	input["settings"]["outputSelection"]["*"][""][0] = "*";
+	// Enable all Contract-level outputs.
+	input["settings"]["outputSelection"]["*"]["*"][0] = "*";
+
+	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();
+}
+}
diff --git a/libsolc/libsolc.h b/libsolc/libsolc.h
new file mode 100644
index 00000000..c392ce93
--- /dev/null
+++ b/libsolc/libsolc.h
@@ -0,0 +1,42 @@
+/*
+	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 <stdbool.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/// Callback used to retrieve additional source files. "Returns" two pointers that should be
+/// heap-allocated and are free'd by the caller.
+typedef void (*CStyleReadFileCallback)(char const* _path, char** o_contents, char** o_error);
+
+char const* license();
+char const* version();
+char const* compileJSON(char const* _input, bool _optimize);
+char const* compileJSONMulti(char const* _input, bool _optimize);
+char const* compileJSONCallback(char const* _input, bool _optimize, CStyleReadFileCallback _readCallback);
+char const* compileStandard(char const* _input, CStyleReadFileCallback _readCallback);
+
+#ifdef __cplusplus
+}
+#endif