Add output and fix two bugs.

04/main.cpp

@@ -1,6 +1,7 @@
 #include "ast.hpp"
 #include "parser.hpp"
 #include "type.hpp"
+#include <iostream>
 
 void yy::parser::error(const std::string& msg) {
     std::cout << "An error occured: " << msg << std::endl;
@@ -29,11 +30,27 @@ void typecheck_program(const std::vector<definition_ptr>& prog) {
     for(auto& def : prog) {
         def->typecheck_second(mgr, env);
     }
+
+    for(auto& pair : env.names) {
+        std::cout << pair.first << ": ";
+        pair.second->print(mgr, std::cout);
+        std::cout << std::endl;
+    }
 }
 
 int main() {
     yy::parser parser;
     parser.parse();
+    for(auto& definition : program) {
+        definition_defn* def = dynamic_cast<definition_defn*>(definition.get());
+        if(!def) continue;
+
+        std::cout << def->name;
+        for(auto& param : def->params) std::cout << " " << param;
+        std::cout << ":" << std::endl;
+
+        def->body->print(1, std::cout);
+    }
     typecheck_program(program);
     std::cout << program.size() << std::endl;
 }