- (* If no target was set on the command line, find
- * the first goal in the file.
- *)
- if !targets = [] then (
- try
- let first_goal =
- List.find (function Ast.Goal _ -> true | _ -> false) file in
- match first_goal with
- | Ast.Goal (name, [], _, _, _) ->
- targets := [Ast.ECall (name, [])]
- | Ast.Goal (name, _, _, _, _) ->
- failwithf "%s: first target ā%sā has parameters and so cannot be used as the default target"
- filename name
- | _ -> assert false
- with
- (* Actually this is fine. If there are no goals we'll do nothing. *)
- Not_found -> ()
- );
-
- let targets = List.rev !targets in
-
- (* Assignments are simply treated as statements added to the end of
- * the file (so they override earlier assignments to the same variable,
- * if any).
- *)
- let file = file @ List.rev !assignments in
-
- (* We start with an empty symbol table. *)
- let vars = Hashtbl.create 13 in
-
- (* Evaluate the target expressions in turn. *)
- Eval.evaluate file vars targets
-
-let () = main ()
+ (* Parse the input file. *)
+ let env = Parse.parse_goalfile env (Cmdline.input_file ()) in
+
+ (* Parse the command line assignments. *)
+ let env =
+ List.fold_left (
+ fun env (name, expr) ->
+ let expr = Parse.parse_expr "commandline" expr in
+ Ast.Env.add name expr env
+ ) env anon_vars in
+
+ (* Parse the target expressions. *)
+ let targets = List.map (Parse.parse_expr "commandline") targets in
+
+ (* If no target was set on the command line, use "all ()". *)
+ let targets =
+ if targets <> [] then targets
+ else [Ast.ECall (Ast.noloc, "all", [])] in
+
+ if Cmdline.debug_flag () then
+ Ast.print_env stderr env;
+
+ (* Construct the dependency DAG with the root(s) being the targets. *)
+ let dag = Deps.create env targets in
+
+ (* Run the jobs. *)
+ let state = Deps.new_state dag Run.goal_runner Run.exists_runner in
+ let next_job () = Deps.next_job state in
+ let retire_job job = Deps.retire_job state job in
+ let string_of_job job = Deps.string_of_job job in
+ Jobs.run next_job retire_job string_of_job
+
+let () =
+ try main ()
+ with
+ | Failure msg | Sys_error msg ->
+ prerr_endline ("*** error: " ^ msg);
+ exit 1