| 1 | module List = ListLabels |
| 2 | |
| 3 | module Map = Tiger_map |
| 4 | module Symbol = Tiger_symbol |
| 5 | module Temp = Tiger_temp |
| 6 | module Translate = Tiger_translate |
| 7 | module Type = Tiger_env_type |
| 8 | |
| 9 | type t = |
| 10 | | Var of |
| 11 | { access : Tiger_translate.access |
| 12 | ; ty : Tiger_env_type.t |
| 13 | } |
| 14 | | Fun of |
| 15 | { formals : Tiger_env_type.t list |
| 16 | ; result : Tiger_env_type.t |
| 17 | ; level : Tiger_translate.Level.t |
| 18 | ; label : Tiger_temp.Label.t |
| 19 | } |
| 20 | |
| 21 | type env = |
| 22 | (Symbol.t, t ) Map.t |
| 23 | |
| 24 | let built_in = |
| 25 | [ ("print" , [Type.String] , Type.Unit ) |
| 26 | ; ("flush" , [] , Type.Unit ) |
| 27 | ; ("getchar" , [] , Type.String ) |
| 28 | ; ("ord" , [Type.String] , Type.Int ) |
| 29 | ; ("chr" , [Type.Int] , Type.String ) |
| 30 | ; ("size" , [Type.String] , Type.Int ) |
| 31 | ; ("substring" , [Type.String; Type.Int; Type.Int] , Type.String ) |
| 32 | ; ("concat" , [Type.String; Type.String] , Type.String ) |
| 33 | ; ("not" , [Type.Int] , Type.Int ) |
| 34 | ; ("exit" , [Type.Int] , Type.Unit ) |
| 35 | ] |
| 36 | |> List.map ~f:(fun (name, formals, result) -> |
| 37 | let key = Symbol.of_string name in |
| 38 | let level = Translate.Level.init in |
| 39 | let label = Temp.Label.gen () in |
| 40 | let value = Fun {formals; result; level; label} in |
| 41 | (key, value) |
| 42 | ) |
| 43 | |> Map.of_list |