mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
85 lines
2.3 KiB
C++
85 lines
2.3 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 walkers that collect facts about identifiers and definitions.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <libjulia/optimiser/ASTWalker.h>
|
|
|
|
#include <string>
|
|
#include <map>
|
|
#include <set>
|
|
|
|
namespace dev
|
|
{
|
|
namespace julia
|
|
{
|
|
|
|
/**
|
|
* Specific AST walker that collects all defined names.
|
|
*/
|
|
class NameCollector: public ASTWalker
|
|
{
|
|
public:
|
|
using ASTWalker::operator ();
|
|
virtual void operator()(VariableDeclaration const& _varDecl) override;
|
|
virtual void operator()(FunctionDefinition const& _funDef) override;
|
|
|
|
std::set<std::string> const& names() const { return m_names; }
|
|
std::map<std::string, FunctionDefinition const*> const& functions() const { return m_functions; }
|
|
private:
|
|
std::set<std::string> m_names;
|
|
std::map<std::string, FunctionDefinition const*> m_functions;
|
|
};
|
|
|
|
/**
|
|
* Specific AST walker that counts all references to all declarations.
|
|
*/
|
|
class ReferencesCounter: public ASTWalker
|
|
{
|
|
public:
|
|
using ASTWalker::operator ();
|
|
virtual void operator()(Identifier const& _identifier);
|
|
virtual void operator()(FunctionCall const& _funCall);
|
|
|
|
static std::map<std::string, size_t> countReferences(Block const& _block);
|
|
static std::map<std::string, size_t> countReferences(Expression const& _expression);
|
|
|
|
std::map<std::string, size_t> const& references() const { return m_references; }
|
|
private:
|
|
std::map<std::string, size_t> m_references;
|
|
};
|
|
|
|
/**
|
|
* Specific AST walker that finds all variables that are assigned to.
|
|
*/
|
|
class Assignments: public ASTWalker
|
|
{
|
|
public:
|
|
using ASTWalker::operator ();
|
|
virtual void operator()(Assignment const& _assignment) override;
|
|
|
|
std::set<std::string> const& names() const { return m_names; }
|
|
private:
|
|
std::set<std::string> m_names;
|
|
};
|
|
|
|
}
|
|
}
|