126 lines
5.2 KiB
OCaml
126 lines
5.2 KiB
OCaml
open Names
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open Modules
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open Signature
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open Java
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open Java_printer
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(** returns the vd and the pat of a fresh ident from [name] *)
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let mk_var ty name =
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let id = Idents.gen_var "java_main" name in
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mk_var_dec id false ty, Pvar id, Evar id
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let program p =
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let p_java = Obc2java14.program p in
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let dir = Compiler_utils.build_path "java" in
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Compiler_utils.ensure_dir dir;
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(* Compile and output the nodes *)
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output_program dir p_java;
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(* Create a runnable main simulation *)
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if !Compiler_options.simulation
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then (
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let q_main =
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try !Compiler_options.simulation_node |> qualify_value
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with Not_found ->
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Format.eprintf "Unable to find main node: %s@." !Compiler_options.simulation_node;
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raise Errors.Error
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in
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let sig_main = find_value q_main in
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let ty_main = sig_main.node_outputs |> types_of_arg_list |> Types.prod in
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let ty_main_args = sig_main.node_params |> types_of_param_list in
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let class_name = Obc2java14.fresh_classe (!Compiler_options.simulation_node ^ "_sim") in
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Idents.enter_node class_name;
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let field_step_dnb, id_step_dnb =
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let id = Idents.gen_var "java_main" "default_step_nb" in
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Java.mk_field ~static:true ~final:true ~value:(Some (Sint 30000)) Tint id, id
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in
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let main_methode =
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(* step is the current iteration step *)
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let vd_step, pat_step, exp_step = mk_var Tint "step" in
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let vd_args, _, exp_args =
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mk_var (Tarray (Tclass (Names.pervasives_qn "String"), [Sint 0])) "args" in
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let get_arg i = Earray_elem(exp_args, [Sint i]) in
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(* (* argnb is the current argument during the parsing *)
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let vd_argnb, pat_argnb, exp_argnb = mk_var Tint "argNb" in
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let init_argnb = Aassgn (pat_argnb, Sint 0) in
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let incr_argnb = Aassgn (pat_argnb, Efun(pervasives_qn "+", [exp_argnb; Sint 1])) in
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let exp_current_arg = Earray_elem(exp_args, exp_argnb) in
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*)
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let body =
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let vd_main, e_main, q_main, _ty_main =
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let q_main = Obc2java14.qualname_to_package_classe q_main in (*java qual*)
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let id = Idents.gen_var "java_main" "main" in
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mk_var_dec id false (Tclass q_main), Evar id, q_main, ty_main
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in
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let acts =
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let out = Eclass(Names.qualname_of_string "java.lang.System.out") in
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let _jarrays = Eclass(Names.qualname_of_string "java.util.Arrays") in
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let jint = Eclass(Names.qualname_of_string "Integer") in
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let jfloat = Eclass(Names.qualname_of_string "Float") in
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let jbool = Eclass(Names.qualname_of_string "Boolean") in
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let jsys = Eclass(Names.qualname_of_string "java.lang.System") in
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let jminus = pervasives_qn "-" in
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let jplus = pervasives_qn "+" in
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(* parse arguments to give to the main *)
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let rec parse_args t_l i = match t_l with
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| [] -> []
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| t::t_l when t = Initial.tint ->
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(Emethod_call(jint, "parseInt", [get_arg i]))
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:: parse_args t_l (i+1)
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| t::t_l when t = Initial.tfloat ->
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(Emethod_call(jfloat, "parseFloat", [get_arg i]))
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:: parse_args t_l (i+1)
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| t::t_l when t = Initial.tint ->
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(Emethod_call(jbool, "parseBool", [get_arg i]))
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:: parse_args t_l (i+1)
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| _ -> Misc.unsupported "java main does not support parsing complexe static args"
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in
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let main_args = parse_args ty_main_args 0 in
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let parse_max_iteration =
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let t_size = List.length ty_main_args in
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(* no more arg to give to main, the last one if it exists is the iteration nb *)
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Aifelse(Efun(Names.pervasives_qn ">", [ Efield (exp_args, "length"); Sint t_size ]),
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(* given max number of iterations *)
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mk_block [Aassgn(pat_step,
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Emethod_call(jint, "parseInt", [get_arg t_size]))],
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(* default max number of iterations *)
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mk_block [Aassgn(pat_step, Evar id_step_dnb)]);
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in
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let ret = Emethod_call(e_main, "step", []) in
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let main_for_loop _ =
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(* [Aexp (Emethod_call(out, "printf", *)
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(* [Sstring "%d => %s\\n"; Evar i; print_ret]))] *)
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[Aexp ret]
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in
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let vd_t1, e_t1 =
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let id = Idents.gen_var "java_main" "t" in
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mk_var_dec id false Tlong, Evar id
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in
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[ Anewvar(vd_main, Enew (Tclass q_main, main_args));
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parse_max_iteration;
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Anewvar(vd_t1, Emethod_call(jsys, "currentTimeMillis", []));
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Obc2java14.fresh_for exp_step main_for_loop;
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Aexp (Emethod_call(out, "print",
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[ Efun(jplus,
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[Sstring "time : %d\\n";
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Efun(jminus,
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[Emethod_call(jsys, "currentTimeMillis", []);
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e_t1])])]))
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]
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in
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mk_block ~locals:[vd_step] acts
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in
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mk_methode ~static:true ~args:[vd_args] body "main"
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in
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let c = mk_classe ~fields:[field_step_dnb] ~methodes:[main_methode] class_name in
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output_program dir [c]
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)
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