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/*
This file is part of cpp-ethereum.
cpp-ethereum 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.
cpp-ethereum 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 cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @author Christian <c@ethdev.com>
* @date 2014
* Full-stack compiler that converts a source code string to bytecode.
*/
#include <libsolidity/AST.h>
#include <libsolidity/Scanner.h>
#include <libsolidity/Parser.h>
#include <libsolidity/GlobalContext.h>
#include <libsolidity/NameAndTypeResolver.h>
#include <libsolidity/Compiler.h>
#include <libsolidity/CompilerStack.h>
#include <libsolidity/InterfaceHandler.h>
using namespace std;
namespace dev
{
namespace solidity
{
void CompilerStack::addSource(string const& _name, string const& _content)
{
if (m_sources.count(_name))
BOOST_THROW_EXCEPTION(CompilerError() << errinfo_comment("Source by given name already exists."));
reset(true);
m_sources[_name].scanner = make_shared<Scanner>(CharStream(_content), _name);
}
void CompilerStack::setSource(string const& _sourceCode)
{
reset();
addSource("", _sourceCode);
}
void CompilerStack::parse()
{
for (auto& sourcePair: m_sources)
{
sourcePair.second.scanner->reset();
sourcePair.second.ast = Parser().parse(sourcePair.second.scanner);
}
resolveImports();
m_globalContext = make_shared<GlobalContext>();
NameAndTypeResolver resolver(m_globalContext->getDeclarations());
for (Source const* source: m_sourceOrder)
resolver.registerDeclarations(*source->ast);
for (Source const* source: m_sourceOrder)
for (ASTPointer<ASTNode> const& node: source->ast->getNodes())
if (ContractDefinition* contract = dynamic_cast<ContractDefinition*>(node.get()))
{
m_globalContext->setCurrentContract(*contract);
resolver.updateDeclaration(*m_globalContext->getCurrentThis());
resolver.resolveNamesAndTypes(*contract);
m_contracts[contract->getName()].contract = contract;
}
m_parseSuccessful = true;
}
void CompilerStack::parse(string const& _sourceCode)
{
setSource(_sourceCode);
parse();
}
vector<string> CompilerStack::getContractNames() const
{
if (!m_parseSuccessful)
BOOST_THROW_EXCEPTION(CompilerError() << errinfo_comment("Parsing was not successful."));
vector<string> contractNames;
for (auto const& contract: m_contracts)
contractNames.push_back(contract.first);
return contractNames;
}
void CompilerStack::compile(bool _optimize)
{
if (!m_parseSuccessful)
parse();
map<ContractDefinition const*, bytes const*> contractBytecode;
for (Source const* source: m_sourceOrder)
for (ASTPointer<ASTNode> const& node: source->ast->getNodes())
if (ContractDefinition* contract = dynamic_cast<ContractDefinition*>(node.get()))
{
m_globalContext->setCurrentContract(*contract);
shared_ptr<Compiler> compiler = make_shared<Compiler>(_optimize);
compiler->compileContract(*contract, m_globalContext->getMagicVariables(),
contractBytecode);
Contract& compiledContract = m_contracts[contract->getName()];
compiledContract.bytecode = compiler->getAssembledBytecode();
compiledContract.compiler = move(compiler);
contractBytecode[compiledContract.contract] = &compiledContract.bytecode;
}
}
bytes const& CompilerStack::compile(string const& _sourceCode, bool _optimize)
{
parse(_sourceCode);
compile(_optimize);
return getBytecode();
}
bytes const& CompilerStack::getBytecode(string const& _contractName) const
{
return getContract(_contractName).bytecode;
}
void CompilerStack::streamAssembly(ostream& _outStream, string const& _contractName) const
{
getContract(_contractName).compiler->streamAssembly(_outStream);
}
string const& CompilerStack::getInterface(string const& _contractName) const
{
return getJsonDocumentation(_contractName, DocumentationType::ABI_INTERFACE);
}
string const& CompilerStack::getJsonDocumentation(string const& _contractName, DocumentationType _type) const
{
if (!m_parseSuccessful)
BOOST_THROW_EXCEPTION(CompilerError() << errinfo_comment("Parsing was not successful."));
Contract const& contract = getContract(_contractName);
std::unique_ptr<string const>* doc;
switch (_type)
{
case DocumentationType::NATSPEC_USER:
doc = &contract.userDocumentation;
break;
case DocumentationType::NATSPEC_DEV:
doc = &contract.devDocumentation;
break;
case DocumentationType::ABI_INTERFACE:
doc = &contract.interface;
break;
default:
BOOST_THROW_EXCEPTION(InternalCompilerError() << errinfo_comment("Illegal documentation type."));
}
if (!*doc)
*doc = contract.interfaceHandler->getDocumentation(*contract.contract, _type);
return *(*doc);
}
Scanner const& CompilerStack::getScanner(string const& _sourceName) const
{
return *getSource(_sourceName).scanner;
}
SourceUnit const& CompilerStack::getAST(string const& _sourceName) const
{
return *getSource(_sourceName).ast;
}
bytes CompilerStack::staticCompile(std::string const& _sourceCode, bool _optimize)
{
CompilerStack stack;
return stack.compile(_sourceCode, _optimize);
}
void CompilerStack::reset(bool _keepSources)
{
m_parseSuccessful = false;
if (_keepSources)
for (auto sourcePair: m_sources)
sourcePair.second.reset();
else
m_sources.clear();
m_globalContext.reset();
m_sourceOrder.clear();
m_contracts.clear();
}
void CompilerStack::resolveImports()
{
// topological sorting (depth first search) of the import graph, cutting potential cycles
vector<Source const*> sourceOrder;
set<Source const*> sourcesSeen;
function<void(Source const*)> toposort = [&](Source const* _source)
{
if (sourcesSeen.count(_source))
return;
sourcesSeen.insert(_source);
for (ASTPointer<ASTNode> const& node: _source->ast->getNodes())
if (ImportDirective const* import = dynamic_cast<ImportDirective*>(node.get()))
{
string const& id = import->getIdentifier();
if (!m_sources.count(id))
BOOST_THROW_EXCEPTION(ParserError()
<< errinfo_sourceLocation(import->getLocation())
<< errinfo_comment("Source not found."));
toposort(&m_sources[id]);
}
sourceOrder.push_back(_source);
};
for (auto const& sourcePair: m_sources)
toposort(&sourcePair.second);
swap(m_sourceOrder, sourceOrder);
}
CompilerStack::Contract const& CompilerStack::getContract(string const& _contractName) const
{
if (m_contracts.empty())
BOOST_THROW_EXCEPTION(CompilerError() << errinfo_comment("No compiled contracts found."));
if (_contractName.empty())
return m_contracts.begin()->second;
auto it = m_contracts.find(_contractName);
if (it == m_contracts.end())
BOOST_THROW_EXCEPTION(CompilerError() << errinfo_comment("Contract " + _contractName + " not found."));
return it->second;
}
CompilerStack::Source const& CompilerStack::getSource(string const& _sourceName) const
{
auto it = m_sources.find(_sourceName);
if (it == m_sources.end())
BOOST_THROW_EXCEPTION(CompilerError() << errinfo_comment("Given source file not found."));
return it->second;
}
CompilerStack::Contract::Contract(): interfaceHandler(make_shared<InterfaceHandler>()) {}
}
}
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