bloglang/04/env.hpp

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2019-08-26 18:52:25 -07:00
#pragma once
#include <map>
#include "type.hpp"
struct type_env {
std::map<std::string, type_ptr> names;
type_env const* parent = nullptr;
type_env(type_env const* p)
: parent(p) {}
type_env() : type_env(nullptr) {}
type_ptr lookup(const std::string& name) const;
void bind(const std::string& name, type_ptr t);
type_env scope() const;
};