mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
154 lines
4.0 KiB
C++
154 lines
4.0 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/>.
|
|
*/
|
|
/**
|
|
* Module responsible for registering identifiers inside their scopes.
|
|
*/
|
|
|
|
#include <libsolidity/inlineasm/AsmScopeFiller.h>
|
|
|
|
#include <libsolidity/inlineasm/AsmData.h>
|
|
#include <libsolidity/inlineasm/AsmScope.h>
|
|
#include <libsolidity/inlineasm/AsmAnalysisInfo.h>
|
|
|
|
#include <libsolidity/interface/ErrorReporter.h>
|
|
#include <libsolidity/interface/Utils.h>
|
|
|
|
#include <boost/range/adaptor/reversed.hpp>
|
|
|
|
#include <memory>
|
|
#include <functional>
|
|
|
|
using namespace std;
|
|
using namespace dev;
|
|
using namespace dev::solidity;
|
|
using namespace dev::solidity::assembly;
|
|
|
|
ScopeFiller::ScopeFiller(AsmAnalysisInfo& _info, ErrorReporter& _errorReporter):
|
|
m_info(_info), m_errorReporter(_errorReporter)
|
|
{
|
|
m_currentScope = &scope(nullptr);
|
|
}
|
|
|
|
bool ScopeFiller::operator()(Label const& _item)
|
|
{
|
|
if (!m_currentScope->registerLabel(_item.name))
|
|
{
|
|
//@TODO secondary location
|
|
m_errorReporter.declarationError(
|
|
_item.location,
|
|
"Label name " + _item.name + " already taken in this scope."
|
|
);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool ScopeFiller::operator()(assembly::VariableDeclaration const& _varDecl)
|
|
{
|
|
for (auto const& variable: _varDecl.variables)
|
|
if (!registerVariable(variable, _varDecl.location, *m_currentScope))
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
bool ScopeFiller::operator()(assembly::FunctionDefinition const& _funDef)
|
|
{
|
|
bool success = true;
|
|
vector<Scope::JuliaType> arguments;
|
|
for (auto const& _argument: _funDef.arguments)
|
|
arguments.push_back(_argument.type);
|
|
vector<Scope::JuliaType> returns;
|
|
for (auto const& _return: _funDef.returns)
|
|
returns.push_back(_return.type);
|
|
if (!m_currentScope->registerFunction(_funDef.name, arguments, returns))
|
|
{
|
|
//@TODO secondary location
|
|
m_errorReporter.declarationError(
|
|
_funDef.location,
|
|
"Function name " + _funDef.name + " already taken in this scope."
|
|
);
|
|
success = false;
|
|
}
|
|
|
|
auto virtualBlock = m_info.virtualBlocks[&_funDef] = make_shared<Block>();
|
|
Scope& varScope = scope(virtualBlock.get());
|
|
varScope.superScope = m_currentScope;
|
|
m_currentScope = &varScope;
|
|
varScope.functionScope = true;
|
|
for (auto const& var: _funDef.arguments + _funDef.returns)
|
|
if (!registerVariable(var, _funDef.location, varScope))
|
|
success = false;
|
|
|
|
if (!(*this)(_funDef.body))
|
|
success = false;
|
|
|
|
solAssert(m_currentScope == &varScope, "");
|
|
m_currentScope = m_currentScope->superScope;
|
|
|
|
return success;
|
|
}
|
|
|
|
bool ScopeFiller::operator()(Switch const& _switch)
|
|
{
|
|
bool success = true;
|
|
for (auto const& _case: _switch.cases)
|
|
if (!(*this)(_case.body))
|
|
success = false;
|
|
return success;
|
|
}
|
|
|
|
bool ScopeFiller::operator()(ForLoop const&)
|
|
{
|
|
solAssert(false, "For loop not supported.");
|
|
}
|
|
|
|
bool ScopeFiller::operator()(Block const& _block)
|
|
{
|
|
bool success = true;
|
|
scope(&_block).superScope = m_currentScope;
|
|
m_currentScope = &scope(&_block);
|
|
|
|
for (auto const& s: _block.statements)
|
|
if (!boost::apply_visitor(*this, s))
|
|
success = false;
|
|
|
|
m_currentScope = m_currentScope->superScope;
|
|
return success;
|
|
}
|
|
|
|
bool ScopeFiller::registerVariable(TypedName const& _name, SourceLocation const& _location, Scope& _scope)
|
|
{
|
|
if (!_scope.registerVariable(_name.name, _name.type))
|
|
{
|
|
//@TODO secondary location
|
|
m_errorReporter.declarationError(
|
|
_location,
|
|
"Variable name " + _name.name + " already taken in this scope."
|
|
);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
Scope& ScopeFiller::scope(Block const* _block)
|
|
{
|
|
auto& scope = m_info.scopes[_block];
|
|
if (!scope)
|
|
scope = make_shared<Scope>();
|
|
return *scope;
|
|
}
|