List.iter (evaluate_target env) exprs
and evaluate_target env = function
- | Ast.EGoal _ -> assert false
+ | Ast.EGoal _ | Ast.ETactic _ -> assert false
(* Call a goal. *)
- | Ast.ECall (loc, name, args) ->
+ | Ast.ECallGoal (loc, name, args) ->
let goal = Ast.getgoal env loc name in
run_goal env loc name args goal
- | Ast.ETactic (loc, name, args) ->
+ (* Call a tactic. *)
+ | Ast.ECallTactic (loc, name, args) ->
(* All parameters of tactics must be simple constant expressions
* (strings, in future booleans, numbers, etc).
*)
(* A string (with or without substitutions) implies *file(filename). *)
| Ast.ESubsts (loc, str) ->
let str = Ast.substitute env loc str in
- run_tactic env loc "file" [Ast.CString str]
+ run_tactic env loc "*file" [Ast.CString str]
| Ast.EConstant (loc, c) ->
- run_tactic env loc "file" [c]
+ run_tactic env loc "*file" [c]
(* Run a goal by name. *)
and run_goal env loc name args (params, patterns, deps, code) =
let expr_of_substs s = Ast.ESubsts (Ast.noloc, s) in
let expr_of_pattern = function
| Ast.PTactic (loc, tactic, targs) ->
- Ast.ETactic (loc, tactic, List.map expr_of_substs targs)
+ Ast.ECallTactic (loc, tactic, List.map expr_of_substs targs)
in
let pexprs = List.map expr_of_pattern patterns in
let env = Ast.Env.add "@" (Ast.EList (Ast.noloc, pexprs)) env in
and needs_rebuild env loc deps pattern =
match pattern with
| Ast.PTactic (loc, tactic, targs) ->
- (* Resolve the targs down to constants. *)
- let targs = List.map ((* XXX Ast.to_shell_script *)
- Ast.substitute env loc) targs in
- (* XXX Look up the tactic.
- * We would do that, but for now hard code the *file tactic. XXX
+ (* Look up the tactic. *)
+ let params, code = Ast.gettactic env loc tactic in
+
+ (* Resolve the targs down to constants. Since needs_rebuild
+ * should be called with env containing the goal params, this
+ * should substitute any parameters in the tactic arguments.
+ *)
+ let targs = List.map (Ast.substitute env loc) targs in
+ let targs =
+ List.map (fun targ ->
+ Ast.EConstant (Ast.noloc, Ast.CString targ)) targs in
+
+ (* Create a new environment binding parameter names
+ * to tactic args.
*)
- assert (tactic = "file");
- assert (List.length targs = 1);
- let targ = List.hd targs in
- not (Sys.file_exists targ)
+ let env =
+ let params =
+ try List.combine params targs
+ with Invalid_argument _ ->
+ failwithf "%a: calling tactic ā%sā with wrong number of arguments"
+ Ast.string_loc loc tactic in
+ List.fold_left (fun env (k, v) -> Ast.Env.add k v env) env params in
+
+ (* Add some standard variables to the environment. *)
+ let env = Ast.Env.add "<" (Ast.EList (Ast.noloc, deps)) env in
+ let env =
+ match deps with
+ | [] -> env
+ | d :: _ -> Ast.Env.add "^" d env in
+ let code = Ast.to_shell_script env loc code in
+ let code = "set -e\nset -x\n\n" ^ code in
+ let r = Sys.command code in
+ if r = 99 (* means "needs rebuild" *) then true
+ else if r = 0 (* means "doesn't need rebuild" *) then false
+ else (
+ eprintf "*** tactic ā%sā failed with exit code %d\n" tactic r;
+ exit 1
+ )
(* Find the goal which matches the given tactic and run it.
* cargs is a list of parameters (all constants).
let targs = List.map (function Ast.CString s -> [Ast.SString s]) cargs in
let p = Ast.PTactic (loc, tactic, targs) in
if needs_rebuild env loc [] p then (
- let t = Ast.ETactic (loc, tactic,
- List.map (fun c -> Ast.EConstant (loc, c))
- cargs) in
+ let t = Ast.ECallTactic (loc, tactic,
+ List.map (fun c -> Ast.EConstant (loc, c))
+ cargs) in
failwithf "%a: don't know how to build %a"
Ast.string_loc loc Ast.string_expr t
)