mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
108 lines
3.1 KiB
C++
108 lines
3.1 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/>.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <libsolidity/analysis/TypeChecker.h>
|
|
#include <libsolidity/ast/Types.h>
|
|
#include <libsolidity/ast/ASTAnnotations.h>
|
|
#include <libsolidity/ast/ASTForward.h>
|
|
#include <libsolidity/ast/ASTVisitor.h>
|
|
|
|
namespace solidity::langutil
|
|
{
|
|
class ErrorReporter;
|
|
struct SourceLocation;
|
|
}
|
|
|
|
namespace solidity::frontend
|
|
{
|
|
|
|
/**
|
|
* This module performs analyses on the AST that are done after type checking and assignments of types:
|
|
* - whether there are circular references in constant state variables
|
|
* - whether override specifiers are actually contracts
|
|
* - whether a modifier is in a function header
|
|
* - whether an event is used outside of an emit statement
|
|
* - whether a variable is declared in a interface
|
|
*
|
|
* When adding a new checker, make sure a visitor that forwards calls that your
|
|
* checker uses exists in PostTypeChecker. Add missing ones.
|
|
*
|
|
* The return value for the visit function of a checker is ignored, all nodes
|
|
* will always be visited.
|
|
*/
|
|
class PostTypeChecker: private ASTConstVisitor
|
|
{
|
|
public:
|
|
struct Checker: public ASTConstVisitor
|
|
{
|
|
Checker(langutil::ErrorReporter& _errorReporter):
|
|
m_errorReporter(_errorReporter) {}
|
|
protected:
|
|
langutil::ErrorReporter& m_errorReporter;
|
|
};
|
|
|
|
/// @param _errorReporter provides the error logging functionality.
|
|
PostTypeChecker(langutil::ErrorReporter& _errorReporter);
|
|
|
|
bool check(ASTNode const& _astRoot);
|
|
|
|
private:
|
|
bool visit(ContractDefinition const& _contract) override;
|
|
void endVisit(ContractDefinition const& _contract) override;
|
|
void endVisit(OverrideSpecifier const& _overrideSpecifier) override;
|
|
|
|
bool visit(VariableDeclaration const& _variable) override;
|
|
void endVisit(VariableDeclaration const& _variable) override;
|
|
|
|
bool visit(EmitStatement const& _emit) override;
|
|
void endVisit(EmitStatement const& _emit) override;
|
|
|
|
bool visit(FunctionCall const& _functionCall) override;
|
|
|
|
bool visit(Identifier const& _identifier) override;
|
|
|
|
bool visit(StructDefinition const& _struct) override;
|
|
void endVisit(StructDefinition const& _struct) override;
|
|
|
|
bool visit(ModifierInvocation const& _modifierInvocation) override;
|
|
void endVisit(ModifierInvocation const& _modifierInvocation) override;
|
|
|
|
template <class T>
|
|
bool callVisit(T const& _node)
|
|
{
|
|
for (auto& checker: m_checkers)
|
|
checker->visit(_node);
|
|
|
|
return true;
|
|
}
|
|
|
|
template <class T>
|
|
void callEndVisit(T const& _node)
|
|
{
|
|
for (auto& checker: m_checkers)
|
|
checker->endVisit(_node);
|
|
}
|
|
|
|
langutil::ErrorReporter& m_errorReporter;
|
|
|
|
std::vector<std::shared_ptr<Checker>> m_checkers;
|
|
};
|
|
|
|
}
|