128 lines
3.1 KiB
OCaml
128 lines
3.1 KiB
OCaml
(**************************************************************************)
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(* *)
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(* Heptagon *)
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(* *)
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(* Author : Marc Pouzet *)
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(* Organization : Demons, LRI, University of Paris-Sud, Orsay *)
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(* *)
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(**************************************************************************)
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(* Object code internal representation *)
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open Misc
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open Names
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open Ident
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open Types
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type var_name = ident
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type type_name = longname
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type fun_name = longname
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type class_name = name
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type instance_name = longname
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type obj_name = name
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type op_name = longname
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type field_name = longname
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type type_dec =
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{ t_name : name;
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t_desc : tdesc }
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and tdesc =
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| Type_abs
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| Type_enum of name list
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| Type_struct of (name * ty) list
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type lhs = { l_desc : lhs_desc; l_ty : ty }
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and lhs_desc =
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| Lvar of var_name
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| Lmem of var_name
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| Lfield of lhs * field_name
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| Larray of lhs * exp
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and exp = { e_desc : exp_desc; e_ty : ty }
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and exp_desc =
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| Elhs of lhs
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| Econst of static_exp
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| Eop of op_name * exp list
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| Estruct of type_name * (field_name * exp) list
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| Earray of exp list
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type obj_call =
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| Oobj of obj_name
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| Oarray of obj_name * lhs
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type method_name =
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| Mreset
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| Mstep
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| Mother of name
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type act =
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| Aassgn of lhs * exp
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| Acall of lhs list * obj_call * method_name * exp list
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| Acase of exp * (longname * block) list
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| Afor of var_name * static_exp * static_exp * block
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and block = act list
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type var_dec =
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{ v_ident : var_name;
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v_type : ty; (*v_controllable : bool*) }
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type obj_dec =
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{ o_name : obj_name;
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o_class : instance_name;
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o_size : static_exp; }
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type method_def =
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{ f_name : fun_name;
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f_inputs : var_dec list;
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f_outputs : var_dec list;
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f_locals : var_dec list;
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f_body : act list; }
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type class_def =
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{ c_name : class_name;
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c_mems : var_dec list;
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c_objs : obj_dec list;
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c_methods: method_def list; }
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type program =
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{ p_pragmas: (name * string) list;
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p_opened : name list;
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p_types : type_dec list;
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p_defs : class_def list }
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let mk_var_dec name ty =
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{ v_ident = name; v_type = ty }
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let mk_exp ?(ty=invalid_type) desc =
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{ e_desc = desc; e_ty = ty }
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let mk_lhs ?(ty=invalid_type) desc =
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{ l_desc = desc; l_ty = ty }
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let rec var_name x =
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match x with
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| Lvar x -> x
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| Lmem x -> x
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| Lfield(x,_) -> var_name x
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| Larray(l, _) -> var_name l
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(** Returns whether an object of name n belongs to
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a list of var_dec. *)
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let rec vd_mem n = function
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| [] -> false
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| vd::l -> vd.v_ident = n or (vd_mem n l)
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(** Returns the var_dec object corresponding to the name n
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in a list of var_dec. *)
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let rec vd_find n = function
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| [] -> Format.printf "Not found var %s\n" (name n); raise Not_found
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| vd::l ->
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if vd.v_ident = n then vd else vd_find n l
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let lhs_of_exp = function
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| Elhs l -> l
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| _ -> assert false
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