134 lines
4.8 KiB
OCaml
134 lines
4.8 KiB
OCaml
(***********************************************************************)
|
|
(* *)
|
|
(* Objective Caml *)
|
|
(* *)
|
|
(* Xavier Leroy, projet Cristal, INRIA Rocquencourt *)
|
|
(* *)
|
|
(* Copyright 1996 Institut National de Recherche en Informatique et *)
|
|
(* Automatique. Distributed only by permission. *)
|
|
(* *)
|
|
(***********************************************************************)
|
|
|
|
(* $Id$ *)
|
|
|
|
(* Predefined type constructors (with special typing rules in typecore) *)
|
|
|
|
open Path
|
|
open Types
|
|
|
|
|
|
let newgenty desc =
|
|
{desc = desc; level = -1 (* generic_level *)}
|
|
|
|
let ident_int = Ident.create "int"
|
|
and ident_char = Ident.create "char"
|
|
and ident_string = Ident.create "string"
|
|
and ident_float = Ident.create "float"
|
|
and ident_bool = Ident.create "bool"
|
|
and ident_unit = Ident.create "unit"
|
|
and ident_exn = Ident.create "exn"
|
|
and ident_array = Ident.create "array"
|
|
and ident_list = Ident.create "list"
|
|
and ident_format = Ident.create "format"
|
|
|
|
let path_int = Pident ident_int
|
|
and path_char = Pident ident_char
|
|
and path_string = Pident ident_string
|
|
and path_float = Pident ident_float
|
|
and path_bool = Pident ident_bool
|
|
and path_unit = Pident ident_unit
|
|
and path_exn = Pident ident_exn
|
|
and path_array = Pident ident_array
|
|
and path_list = Pident ident_list
|
|
and path_format = Pident ident_format
|
|
|
|
let type_int = newgenty (Tconstr(path_int, [], ref []))
|
|
and type_char = newgenty (Tconstr(path_char, [], ref []))
|
|
and type_string = newgenty (Tconstr(path_string, [], ref []))
|
|
and type_float = newgenty (Tconstr(path_float, [], ref []))
|
|
and type_bool = newgenty (Tconstr(path_bool, [], ref []))
|
|
and type_unit = newgenty (Tconstr(path_unit, [], ref []))
|
|
and type_exn = newgenty (Tconstr(path_exn, [], ref []))
|
|
and type_array t = newgenty (Tconstr(path_array, [t], ref []))
|
|
and type_list t = newgenty (Tconstr(path_list, [t], ref []))
|
|
|
|
let ident_match_failure = Ident.create "Match_failure"
|
|
and ident_out_of_memory = Ident.create "Out_of_memory"
|
|
and ident_invalid_argument = Ident.create "Invalid_argument"
|
|
and ident_failure = Ident.create "Failure"
|
|
and ident_not_found = Ident.create "Not_found"
|
|
and ident_sys_error = Ident.create "Sys_error"
|
|
and ident_end_of_file = Ident.create "End_of_file"
|
|
and ident_division_by_zero = Ident.create "Division_by_zero"
|
|
|
|
let path_match_failure = Pident ident_match_failure
|
|
|
|
let build_initial_env add_type add_exception empty_env =
|
|
let newvar() =
|
|
(* Cannot call the real newvar from ctype here
|
|
because ctype imports predef via env *)
|
|
{desc = Tvar; level = -1 (*generic_level*)} in
|
|
let decl_abstr =
|
|
{type_params = [];
|
|
type_arity = 0;
|
|
type_kind = Type_abstract;
|
|
type_manifest = None}
|
|
and decl_bool =
|
|
{type_params = [];
|
|
type_arity = 0;
|
|
type_kind = Type_variant["false",[]; "true",[]];
|
|
type_manifest = None}
|
|
and decl_unit =
|
|
{type_params = [];
|
|
type_arity = 0;
|
|
type_kind = Type_variant["()",[]];
|
|
type_manifest = None}
|
|
and decl_exn =
|
|
{type_params = [];
|
|
type_arity = 0;
|
|
type_kind = Type_variant [];
|
|
type_manifest = None}
|
|
and decl_array =
|
|
let tvar = newvar() in
|
|
{type_params = [tvar];
|
|
type_arity = 1;
|
|
type_kind = Type_abstract;
|
|
type_manifest = None}
|
|
and decl_list =
|
|
let tvar = newvar() in
|
|
{type_params = [tvar];
|
|
type_arity = 1;
|
|
type_kind = Type_variant["[]", []; "::", [tvar; type_list tvar]];
|
|
type_manifest = None}
|
|
and decl_format =
|
|
{type_params = [newvar(); newvar(); newvar()];
|
|
type_arity = 3;
|
|
type_kind = Type_abstract;
|
|
type_manifest = None} in
|
|
|
|
add_exception ident_match_failure [newgenty (Ttuple[type_string; type_int; type_int])] (
|
|
add_exception ident_out_of_memory [] (
|
|
add_exception ident_invalid_argument [type_string] (
|
|
add_exception ident_failure [type_string] (
|
|
add_exception ident_not_found [] (
|
|
add_exception ident_sys_error [type_string] (
|
|
add_exception ident_end_of_file [] (
|
|
add_exception ident_division_by_zero [] (
|
|
add_type ident_format decl_format (
|
|
add_type ident_list decl_list (
|
|
add_type ident_array decl_array (
|
|
add_type ident_exn decl_exn (
|
|
add_type ident_unit decl_unit (
|
|
add_type ident_bool decl_bool (
|
|
add_type ident_float decl_abstr (
|
|
add_type ident_string decl_abstr (
|
|
add_type ident_char decl_abstr (
|
|
add_type ident_int decl_abstr (
|
|
empty_env))))))))))))))))))
|
|
|
|
let builtin_values =
|
|
List.map (fun id -> Ident.make_global id; (Ident.name id, id))
|
|
[ident_match_failure; ident_out_of_memory; ident_invalid_argument;
|
|
ident_failure; ident_not_found; ident_sys_error; ident_end_of_file;
|
|
ident_division_by_zero]
|