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Make type_mgr a class.

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This commit is contained in:
Danila Fedorin
2020-09-15 19:19:58 -07:00
parent f4b5069125
commit 127f51041b
2 changed files with 27 additions and 18 deletions
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33
13/type.hpp
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@@ -7,7 +7,7 @@
#include <optional>
#include "location.hh"
struct type_mgr;
class type_mgr;
struct type {
virtual ~type() = default;
@@ -90,20 +90,23 @@ struct type_app : public type {
void print(const type_mgr& mgr, std::ostream& to) const;
};
struct type_mgr {
int last_id = 0;
std::map<std::string, type_ptr> types;
class type_mgr {
private:
int last_id = 0;
std::map<std::string, type_ptr> types;
std::string new_type_name();
type_ptr new_type();
type_ptr new_arrow_type();
public:
std::string new_type_name();
type_ptr new_type();
type_ptr new_arrow_type();
void unify(type_ptr l, type_ptr r, const std::optional<yy::location>& loc = std::nullopt);
type_ptr substitute(
const std::map<std::string, type_ptr>& subst,
const type_ptr& t) const;
type_ptr resolve(type_ptr t, type_var*& var) const;
void bind(const std::string& s, type_ptr t);
void find_free(const type_ptr& t, std::set<std::string>& into) const;
void find_free(const type_scheme_ptr& t, std::set<std::string>& into) const;
void unify(type_ptr l, type_ptr r, const std::optional<yy::location>& loc = std::nullopt);
type_ptr substitute(
const std::map<std::string, type_ptr>& subst,
const type_ptr& t) const;
type_ptr lookup(const std::string& var) const;
type_ptr resolve(type_ptr t, type_var*& var) const;
void bind(const std::string& s, type_ptr t);
void find_free(const type_ptr& t, std::set<std::string>& into) const;
void find_free(const type_scheme_ptr& t, std::set<std::string>& into) const;
};