evaluate_targets env deps;
(* Check if any target (ie. pattern) needs to be rebuilt. *)
- let rebuild =
- List.exists (needs_rebuild env loc name deps) patterns in
+ let rebuild = List.exists (needs_rebuild env loc deps) patterns in
if rebuild then (
(* Run the code (if any). *)
(match code with
| None -> ()
| Some code ->
- let code = Ast.substitute env loc code in
+ (* Add some standard variables to the environment. *)
+ 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.PVar (loc, name) ->
+ Ast.EVar (loc, name)
+ in
+ let pexprs = List.map expr_of_pattern patterns in
+ let env = Ast.Env.add "@" (Ast.EList (Ast.noloc, pexprs)) env in
+ 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
Printf.printf "running : %s\n" code
);
(* Check all targets were updated (else it's an error). *)
let pattern_still_needs_rebuild =
- try Some (List.find (needs_rebuild env loc name deps) patterns)
+ try Some (List.find (needs_rebuild env loc deps) patterns)
with Not_found -> None in
match pattern_still_needs_rebuild with
| None -> ()
)
(* Return whether the target (pattern) needs to be rebuilt. *)
-and needs_rebuild env loc name deps pattern =
- false (* XXX *)
+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
+ *)
+ assert (tactic = "file");
+ assert (List.length targs = 1);
+ let targ = List.hd targs in
+ not (Sys.file_exists targ)
+ | Ast.PVar _ -> assert false (* XXX not implemented *)
(* Find the goal which matches the given tactic and run it.
* cargs is a list of parameters (all constants).
| Some args -> Some (pattern, name, goal, args)
) patterns in
- let _, name, goal, args =
- match patterns with
- | [p] -> p
- | [] ->
+ match patterns with
+ | [_, name, goal, args] ->
+ run_goal env loc name args goal
+
+ | [] ->
+ (* There's no matching goal, but we don't need one if
+ * the tactic doesn't need to be rebuilt.
+ *)
+ 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
failwithf "%a: don't know how to build %a"
Ast.string_loc loc Ast.string_expr t
- | _ ->
- (* If there are multiple matching goals, then assuming the goals
- * are different we must pick the one which was defined last in
- * the file. However we don't do that right now. XXX
- *)
- assert false (* TODO! *) in
-
- run_goal env loc name args goal
+ )
+
+ | _ ->
+ (* If there are multiple matching goals, then assuming the goals
+ * are different we must pick the one which was defined last in
+ * the file. However we don't do that right now. XXX
+ *)
+ assert false (* TODO! *)
(* Test if pattern matches *tactic(cargs). If it does
* then we return Some args where args is the arguments that must