* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*)
+open Printf
+
open Utils
let rec evaluate_targets env exprs =
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).
*)
let args = List.map (Ast.to_constant env) args in
run_tactic env loc name args
- (* Look up the variable and substitute it. *)
+ (* If this is a goal then it's the same as calling goal(). If not
+ * then look up the variable and substitute it.
+ *)
| Ast.EVar (loc, name) ->
let expr = Ast.getvar env loc name in
- evaluate_target env expr
+ (match expr with
+ | EGoal (loc, ([], _, _, _)) ->
+ evaluate_target env (Ast.ECallGoal (loc, name, []))
+ | EGoal _ ->
+ failwithf "%a: cannot call %s() since this goal has parameters"
+ Ast.string_loc loc name
+ | _ ->
+ evaluate_target env expr
+ )
(* Lists are inlined when found as a target. *)
| Ast.EList (loc, exprs) ->
(* 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) =
+ Cmdline.debug "%a: running goal %s %a"
+ Ast.string_loc loc name Ast.string_expr (Ast.EList (Ast.noloc, args));
+
(* Create a new environment which maps the parameter names to
* the args.
*)
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
- Printf.printf "running : %s\n" code
+ (* 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.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
+ 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 <> 0 then (
+ eprintf "*** goal ‘%s’ failed with exit code %d\n" name r;
+ exit 1
+ )
);
(* 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 =
+and needs_rebuild env loc deps pattern =
+ Cmdline.debug "%a: testing if %a needs rebuild"
+ Ast.string_loc loc Ast.string_pattern 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)
- | Ast.PVar _ -> assert false (* XXX not implemented *)
+ let env =
+ let params =
+ try List.combine params targs
+ with Invalid_argument _ ->
+ failwithf "%a: calling tactic ‘%s’ 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 ‘%s’ 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).
*)
and run_tactic env loc tactic cargs =
+ Cmdline.debug "%a: running tactic %s" Ast.string_loc loc tactic;
+
(* Find all goals in the environment. Returns a list of (name, goal). *)
let goals =
let env = Ast.Env.bindings env in
| Some args -> Some (pattern, name, goal, args)
) patterns in
- let _, name, goal, args =
- match patterns with
- | [p] -> p
- | [] ->
- let t = Ast.ETactic (loc, tactic,
- List.map (fun c -> Ast.EConstant (loc, c))
- cargs) in
+ 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.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
- | _ ->
- (* 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
*)
and matching_pattern env loc tactic cargs pattern params =
match pattern with
- | Ast.PVar (loc, name) -> assert false (* TODO! *)
| Ast.PTactic (loc, ttactic, targs)
when tactic <> ttactic ||
List.length cargs <> List.length targs ->
git.annexia.org / goals.git / blobdiff