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#pragma once
#include "bnf.h"
#include "minicc.h"
namespace Gram {
struct TreeNode {
index_t parent{};
std::vector<index_t> childs; // fill Token by Token
std::vector<std::string> child_types; // fill always
Token token;
};
class Tree {
private:
std::map<index_t, TreeNode> nodes; // index 0 = non existing; index starting at 1
index_t node_num{};
index_t root{};
index_t last{};
public:
void clear();
bool Valid(const std::string& Top) const;
bool AddFirstNode(const Token& token, const BNF& bnf, const std::map<std::string, std::set<std::string>>& reverseBNF);
std::vector<TreeNode> getParentTreeNode(const BNF& bnf, const std::map<std::string, std::set<std::string>>& reverseBNF);
index_t GetLast();
void AddRootNode(const TreeNode& newRootNode);
void RemoveRootNode();
std::vector<std::string> GetPath(std::string a, std::string b, const BNF& bnf, const std::map<std::string, std::set<std::string>>& reverseBNF);
index_t AddNode(const std::string& name, const std::string& child_name, index_t parent_index, const BNF& bnf, const std::map<std::string, std::set<std::string>>& reverseBNF);
void AddPath(const std::vector<std::string>& path, index_t current_index, const BNF& bnf, const std::map<std::string, std::set<std::string>>& reverseBNF);
bool Add(const Token& token, const BNF& bnf, const std::map<std::string, std::set<std::string>>& reverseBNF);
void Resolve(const BNF& bnf, const std::map<std::string, std::set<std::string>>& reverseBNF);
void Dump();
};
class Compiler
{
private:
const BNF &bnf;
const std::string& Top;
std::map<std::string, std::set<std::string>> ReverseBNF;
public:
Compiler(const BNF& bnf, const std::string& Top);
Tree compile(std::vector<Token> Tokens);
};
} // namespace Gram
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