solidity/libyul/backends/evm/EVMObjectCompiler.cpp
2020-01-07 15:51:50 +01:00

64 lines
2.2 KiB
C++

/*
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/>.
*/
/**
* Compiler that transforms Yul Objects to EVM bytecode objects.
*/
#include <libyul/backends/evm/EVMObjectCompiler.h>
#include <libyul/backends/evm/EVMCodeTransform.h>
#include <libyul/backends/evm/EVMDialect.h>
#include <libyul/Object.h>
#include <libyul/Exceptions.h>
using namespace solidity::yul;
using namespace std;
void EVMObjectCompiler::compile(Object& _object, AbstractAssembly& _assembly, EVMDialect const& _dialect, bool _evm15, bool _optimize)
{
EVMObjectCompiler compiler(_assembly, _dialect, _evm15);
compiler.run(_object, _optimize);
}
void EVMObjectCompiler::run(Object& _object, bool _optimize)
{
BuiltinContext context;
context.currentObject = &_object;
for (auto& subNode: _object.subObjects)
if (Object* subObject = dynamic_cast<Object*>(subNode.get()))
{
auto subAssemblyAndID = m_assembly.createSubAssembly();
context.subIDs[subObject->name] = subAssemblyAndID.second;
compile(*subObject, *subAssemblyAndID.first, m_dialect, m_evm15, _optimize);
}
else
{
Data const& data = dynamic_cast<Data const&>(*subNode);
context.subIDs[data.name] = m_assembly.appendData(data.data);
}
yulAssert(_object.analysisInfo, "No analysis info.");
yulAssert(_object.code, "No code.");
// We do not catch and re-throw the stack too deep exception here because it is a YulException,
// which should be native to this part of the code.
CodeTransform transform{m_assembly, *_object.analysisInfo, *_object.code, m_dialect, context, _optimize, m_evm15};
transform(*_object.code);
yulAssert(transform.stackErrors().empty(), "Stack errors present but not thrown.");
}