mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
110 lines
2.9 KiB
C++
110 lines
2.9 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/>.
|
|
*/
|
|
/**
|
|
* Specific AST walker that collects all defined names.
|
|
*/
|
|
|
|
#include <libyul/optimiser/NameCollector.h>
|
|
|
|
#include <libyul/AsmData.h>
|
|
|
|
using namespace std;
|
|
using namespace solidity;
|
|
using namespace solidity::yul;
|
|
using namespace solidity::util;
|
|
|
|
void NameCollector::operator()(VariableDeclaration const& _varDecl)
|
|
{
|
|
for (auto const& var: _varDecl.variables)
|
|
m_names.emplace(var.name);
|
|
}
|
|
|
|
void NameCollector::operator ()(FunctionDefinition const& _funDef)
|
|
{
|
|
m_names.emplace(_funDef.name);
|
|
for (auto const arg: _funDef.parameters)
|
|
m_names.emplace(arg.name);
|
|
for (auto const ret: _funDef.returnVariables)
|
|
m_names.emplace(ret.name);
|
|
ASTWalker::operator ()(_funDef);
|
|
}
|
|
|
|
void ReferencesCounter::operator()(Identifier const& _identifier)
|
|
{
|
|
++m_references[_identifier.name];
|
|
}
|
|
|
|
void ReferencesCounter::operator()(FunctionCall const& _funCall)
|
|
{
|
|
if (m_countWhat == VariablesAndFunctions)
|
|
++m_references[_funCall.functionName.name];
|
|
ASTWalker::operator()(_funCall);
|
|
}
|
|
|
|
map<YulString, size_t> ReferencesCounter::countReferences(Block const& _block, CountWhat _countWhat)
|
|
{
|
|
ReferencesCounter counter(_countWhat);
|
|
counter(_block);
|
|
return counter.references();
|
|
}
|
|
|
|
map<YulString, size_t> ReferencesCounter::countReferences(FunctionDefinition const& _function, CountWhat _countWhat)
|
|
{
|
|
ReferencesCounter counter(_countWhat);
|
|
counter(_function);
|
|
return counter.references();
|
|
}
|
|
|
|
map<YulString, size_t> ReferencesCounter::countReferences(Expression const& _expression, CountWhat _countWhat)
|
|
{
|
|
ReferencesCounter counter(_countWhat);
|
|
counter.visit(_expression);
|
|
return counter.references();
|
|
}
|
|
|
|
void Assignments::operator()(Assignment const& _assignment)
|
|
{
|
|
for (auto const& var: _assignment.variableNames)
|
|
m_names.emplace(var.name);
|
|
}
|
|
|
|
|
|
void AssignmentsSinceContinue::operator()(ForLoop const& _forLoop)
|
|
{
|
|
m_forLoopDepth++;
|
|
ASTWalker::operator()(_forLoop);
|
|
m_forLoopDepth--;
|
|
}
|
|
|
|
void AssignmentsSinceContinue::operator()(Continue const&)
|
|
{
|
|
if (m_forLoopDepth == 0)
|
|
m_continueFound = true;
|
|
}
|
|
|
|
void AssignmentsSinceContinue::operator()(Assignment const& _assignment)
|
|
{
|
|
if (m_continueFound)
|
|
for (auto const& var: _assignment.variableNames)
|
|
m_names.emplace(var.name);
|
|
}
|
|
|
|
void AssignmentsSinceContinue::operator()(FunctionDefinition const&)
|
|
{
|
|
yulAssert(false, "");
|
|
}
|