#ifndef GUARD_PATHANALYSIS_H #define GUARD_PATHANALYSIS_H #include "errortypes.h" #include 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& f) const; Info forwardFind(std::function 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& f) const; Progress forwardRange(const Token* startToken, const Token* endToken, Info info, const std::function& f) const; static const Scope* findOuterScope(const Scope * scope); static std::pair 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