cppcheck/lib/pathanalysis.h

63 lines
1.6 KiB
C++

#ifndef GUARD_PATHANALYSIS_H
#define GUARD_PATHANALYSIS_H
#include <functional>
#include "errorlogger.h"
class Library;
class Scope;
class Token;
struct PathAnalysis {
enum class Progress {
Continue,
Break
};
PathAnalysis(const Token* start, const Library& library)
: start(start), library(&library)
{}
const Token * start;
const Library * library;
struct Info {
const Token* tok;
ErrorPath errorPath;
bool known;
};
void forward(const std::function<Progress(const Info&)>& f) const;
Info forwardFind(std::function<bool(const Info&)> pred) {
Info result{};
forward([&](const Info& info) {
if (pred(info)) {
result = info;
return Progress::Break;
}
return Progress::Continue;
});
return result;
}
private:
Progress forwardRecursive(const Token* tok, Info info, const std::function<PathAnalysis::Progress(const Info&)>& f) const;
Progress forwardRange(const Token* startToken, const Token* endToken, Info info, const std::function<Progress(const Info&)>& f) const;
static const Scope* findOuterScope(const Scope * scope);
static std::pair<bool, bool> checkCond(const Token * tok, bool& known);
};
/**
* @brief Returns true if there is a path between the two tokens
*
* @param start Starting point of the path
* @param dest The path destination
* @param errorPath Adds the path traversal to the errorPath
*/
bool reaches(const Token * start, const Token * dest, const Library& library, ErrorPath* errorPath);
#endif