Add CMake file and code for post 4

2019-08-26 18:52:25 -07:00
parent 7e98477450
commit 7e40af4830
16 changed files with 698 additions and 0 deletions
--- a/04/env.hpp
+++ b/04/env.hpp
@@ -0,0 +1,16 @@
+#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;
+};