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See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + +Also add information on how to contact you by electronic and paper mail. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the library, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the + library `Frob' (a library for tweaking knobs) written by James Random Hacker. + + , 1 April 1990 + Ty Coon, President of Vice + +That's all there is to it! diff --git a/rocq-ltac2-tc-dispatch/README.md b/rocq-ltac2-tc-dispatch/README.md new file mode 100644 index 000000000..d25731c2a --- /dev/null +++ b/rocq-ltac2-tc-dispatch/README.md @@ -0,0 +1,7 @@ +Extensible Ltac2 Dispatch with Typeclasses +=========================================== + +To use the library, require via the following command: +```coq +Require Import skylabs.ltac2.tc_dispatch.lookup. +``` diff --git a/rocq-ltac2-tc-dispatch/dune b/rocq-ltac2-tc-dispatch/dune new file mode 100644 index 000000000..a2ceb7a64 --- /dev/null +++ b/rocq-ltac2-tc-dispatch/dune @@ -0,0 +1,16 @@ +(env + (sl_timing + (binaries + (../rocq-tools/bin/rocq_perf.exe as rocq)) + (flags :standard %{read-lines:flags/ocamlc}) + (ocamlopt_flags :standard -O3 -unbox-closures) + (rocq + (rocqdep_flags :standard -w +all) + (flags (:standard %{read-lines:flags/coqc})))) + ; Same, but without coqc_perf + (_ + (flags :standard %{read-lines:flags/ocamlc}) + (ocamlopt_flags :standard -O3 -unbox-closures) + (rocq + (rocqdep_flags :standard -w +all) + (flags (:standard %{read-lines:flags/coqc}))))) diff --git a/rocq-ltac2-tc-dispatch/dune-project b/rocq-ltac2-tc-dispatch/dune-project new file mode 100644 index 000000000..c73e9ebb5 --- /dev/null +++ b/rocq-ltac2-tc-dispatch/dune-project @@ -0,0 +1,22 @@ +(lang dune 3.21) +(using rocq 0.11) +(name ltac2-tc-dispatch) + +(generate_opam_files) + +(maintainers + "Gregory Malecha ") + +(authors + "Gregory Malecha ") + +(license MIT) + +(source (github SkyLabsAI/BRiCk)) + +(package + (name ltac2-tc-dispatch) + (synopsis "Typeclass-based lookup for Ltac2 functions") + (depends coq-core coq-stdlib stdlib-extra rocq-extra)) + +(subst disabled) diff --git a/rocq-ltac2-tc-dispatch/flags b/rocq-ltac2-tc-dispatch/flags new file mode 120000 index 000000000..03afcb6e3 --- /dev/null +++ b/rocq-ltac2-tc-dispatch/flags @@ -0,0 +1 @@ +../flags \ No newline at end of file diff --git a/rocq-ltac2-tc-dispatch/ltac2-tc-dispatch.opam b/rocq-ltac2-tc-dispatch/ltac2-tc-dispatch.opam new file mode 100644 index 000000000..27ba372c9 --- /dev/null +++ b/rocq-ltac2-tc-dispatch/ltac2-tc-dispatch.opam @@ -0,0 +1,31 @@ +# This file is generated by dune, edit dune-project instead +opam-version: "2.0" +synopsis: "Typeclass-based lookup for Ltac2 functions" +maintainer: ["Gregory Malecha "] +authors: ["Gregory Malecha "] +license: "MIT" +homepage: "https://github.com/SkyLabsAI/BRiCk" +bug-reports: "https://github.com/SkyLabsAI/BRiCk/issues" +depends: [ + "dune" {>= "3.21"} + "coq-core" + "coq-stdlib" + "stdlib-extra" + "rocq-extra" + "odoc" {with-doc} +] +build: [ + [ + "dune" + "build" + "-p" + name + "-j" + jobs + "@install" + "@runtest" {with-test} + "@doc" {with-doc} + ] +] +dev-repo: "git+https://github.com/SkyLabsAI/BRiCk.git" +x-maintenance-intent: ["(latest)"] diff --git a/rocq-ltac2-tc-dispatch/plugin/dune b/rocq-ltac2-tc-dispatch/plugin/dune new file mode 100644 index 000000000..7b262f7b8 --- /dev/null +++ b/rocq-ltac2-tc-dispatch/plugin/dune @@ -0,0 +1,4 @@ +(library + (name ltac2_tc_dispatch) + (public_name ltac2-tc-dispatch.plugin) + (libraries coq-core.plugins.ltac2 rocq-extra stdlib-extra ltac2-extra.plugin)) diff --git a/rocq-ltac2-tc-dispatch/plugin/lookup.ml b/rocq-ltac2-tc-dispatch/plugin/lookup.ml new file mode 100644 index 000000000..787513413 --- /dev/null +++ b/rocq-ltac2-tc-dispatch/plugin/lookup.ml @@ -0,0 +1,47 @@ + +open Ltac2_plugin +open Tac2ffi +(* open Tac2val *) +open Tac2externals + +let resolve_ltac2_safe (mp : string list) (id : string) : (unit -> unit Proofview.tactic) option = + let qualid = Libnames.make_qualid + (Names.DirPath.make (List.map Names.Id.of_string mp)) + (Names.Id.of_string id) + in + let is_unit_typ (t : int Tac2expr.glb_typexpr) : bool = + (* TODO: why does Init.unit have two different representations? *) + match t with + | Tac2expr.GTypRef (Tac2expr.Other ty, []) -> + ty = Tac2core.Core.t_unit + | Tac2expr.GTypRef (Tac2expr.Tuple 0, []) -> + true + | _ -> false + in + let is_unit_to_unit ((n, t) : Tac2expr.type_scheme) : bool = + Int.equal n 0 && + match t with + | Tac2expr.GTypArrow (t1, t2) -> is_unit_typ t1 && is_unit_typ t2 + | _ -> false + in + match Tac2env.locate_ltac qualid with + | Tac2expr.TacConstant kn -> + let data = Tac2env.interp_global kn in + if is_unit_to_unit data.Tac2env.gdata_type + then + let v = Tac2interp.eval_global kn in + Some (repr_to (fun1 unit unit) v) + else + None + | Tac2expr.TacAlias _ -> + None + | exception Not_found -> None + + +let define s = + define Tac2expr.{ mltac_plugin = "ltac2_tc_dispatch"; mltac_tactic = s } + +let () = + define "resolve_ltac2" + (list string @-> string @-> ret (option (fun1 unit unit))) @@ fun modpath name -> + resolve_ltac2_safe modpath name diff --git a/rocq-ltac2-tc-dispatch/plugin/ltac2_tc_dispatch.mlpack b/rocq-ltac2-tc-dispatch/plugin/ltac2_tc_dispatch.mlpack new file mode 100644 index 000000000..e69de29bb diff --git a/rocq-ltac2-tc-dispatch/tests/dune b/rocq-ltac2-tc-dispatch/tests/dune new file mode 100644 index 000000000..5d7923315 --- /dev/null +++ b/rocq-ltac2-tc-dispatch/tests/dune @@ -0,0 +1,4 @@ +(include_subdirs qualified) +(rocq.theory + (name skylabs_tests.ltac2.tc_dispatch) + (theories Stdlib skylabs.ltac2.extra skylabs.ltac2.tc_dispatch)) diff --git a/rocq-ltac2-tc-dispatch/tests/external.v b/rocq-ltac2-tc-dispatch/tests/external.v new file mode 100644 index 000000000..b6a6d429b --- /dev/null +++ b/rocq-ltac2-tc-dispatch/tests/external.v @@ -0,0 +1,13 @@ +Require Import Stdlib.Strings.PrimString. +Require Import Ltac2.Ltac2. +Require Import skylabs.ltac2.tc_dispatch.lookup. + +Ltac2 ext_tactic () := ltac1:(reflexivity). + +#[local] Open Scope pstring_scope. + +#[export] +Instance nested_inst : Ltac2Lookup (0 = 0) := { + ltac2_path := "external" :: "tc_dispatch" :: "ltac2" :: "skylabs_tests" :: nil; + ltac2_name := "ext_tactic"; +}. \ No newline at end of file diff --git a/rocq-ltac2-tc-dispatch/tests/nested.v b/rocq-ltac2-tc-dispatch/tests/nested.v new file mode 100644 index 000000000..1d4b34964 --- /dev/null +++ b/rocq-ltac2-tc-dispatch/tests/nested.v @@ -0,0 +1,17 @@ +Require Import skylabs.ltac2.tc_dispatch.lookup. +Require Import Stdlib.Strings.PrimString. + +#[local] Open Scope pstring_scope. + +Module Import Nested. + Ltac2 inside_module () := ltac1:(reflexivity). + Instance nested_inst : Ltac2Lookup (0 = 0) := { + ltac2_path := "Nested" :: "nested" :: "tc_dispatch" :: "ltac2" :: "skylabs_tests" :: nil; + ltac2_name := "inside_module"; + }. +End Nested. + +Example test_success_nested : 0 = 0. +Proof. + goal_dispatch. (* Should resolve Nested.inside_module *) +Qed. diff --git a/rocq-ltac2-tc-dispatch/tests/simple.v b/rocq-ltac2-tc-dispatch/tests/simple.v new file mode 100644 index 000000000..2c904f0fc --- /dev/null +++ b/rocq-ltac2-tc-dispatch/tests/simple.v @@ -0,0 +1,47 @@ +Require Import Stdlib.Lists.List. +Require Import Stdlib.Strings.PrimString. +Require Import skylabs.ltac2.tc_dispatch.lookup. + +#[local] Open Scope pstring_scope. + +(* A simple success tactic *) +Ltac2 solve_true () := ltac1:(exact I). + +(* A tactic that prints a message *) +Ltac2 say_hello () := Message.print (Message.of_string "Hello from dynamic lookup!"). + +(* Success Instance for True *) +Instance test_true_inst : Ltac2Lookup True := { + ltac2_path := "simple" :: "tc_dispatch" :: "ltac2" :: "skylabs_tests" :: nil; + ltac2_name := "solve_true"; +}. + +(* Success Instance for False (pointing to a printing tactic) *) +Instance test_hello_inst : Ltac2Lookup False := { + ltac2_path := nil; + ltac2_name := "say_hello"; +}. + +(* A "Broken" Instance: String name does not exist *) +Instance broken_inst : Ltac2Lookup (True -> True) := { + ltac2_path := nil; + ltac2_name := "non_existent_tactic_12345"; +}. + +Example test_succeed : True. +Proof. + goal_dispatch. +Abort. + + +(* Testing the "No Instance" failure *) +Example test_fail_no_instance : unit. +Proof. + Fail goal_dispatch. +Abort. + +(* Testing the "Invalid Name" failure *) +Example test_fail_bad_string : nat. +Proof. + Fail goal_dispatch. (* Triggers the None branch of our match *) +Abort. diff --git a/rocq-ltac2-tc-dispatch/tests/test_external.v b/rocq-ltac2-tc-dispatch/tests/test_external.v new file mode 100644 index 000000000..3c3a45ad1 --- /dev/null +++ b/rocq-ltac2-tc-dispatch/tests/test_external.v @@ -0,0 +1,7 @@ +Require Import skylabs_tests.ltac2.tc_dispatch.external. +Require Import skylabs.ltac2.tc_dispatch.lookup. + +Goal 0 = 0. +Proof. + goal_dispatch. +Qed. diff --git a/rocq-ltac2-tc-dispatch/theories/crush_ext.v b/rocq-ltac2-tc-dispatch/theories/crush_ext.v new file mode 100644 index 000000000..7ac754e89 --- /dev/null +++ b/rocq-ltac2-tc-dispatch/theories/crush_ext.v @@ -0,0 +1,22 @@ +Require Ltac2.Ltac2. +Require Import skylabs.ltac2.tc_dispatch.lookup. + +(** +[crush_ext] is An extensible version of [crush]. + +Users can add new tactics / strategies by adding [Ltac2Lookup] hints +to the [crush_ext] database. + *) + +Create HintDb crush_ext discriminated. + +Module ltac2. + Import Ltac2.Init. + Import Ltac2.Notations. + Ltac2 crush2 () := + let dbs := Some [ident:(crush_ext)] in + repeat (ltac2.goal_dispatch_with dbs). +End ltac2. + +Ltac crush_ext := + ltac2:(ltac2.crush2 ()). diff --git a/rocq-ltac2-tc-dispatch/theories/dune b/rocq-ltac2-tc-dispatch/theories/dune new file mode 100644 index 000000000..6a1a13c21 --- /dev/null +++ b/rocq-ltac2-tc-dispatch/theories/dune @@ -0,0 +1,10 @@ +(include_subdirs qualified) +(rocq.theory + (name skylabs.ltac2.tc_dispatch) + (package ltac2-tc-dispatch) + (theories + Ltac2 + Stdlib ; for ltac2-extra/theories/internal/char.v + skylabs.ltac2.extra + ) + (plugins ltac2-tc-dispatch.plugin)) diff --git a/rocq-ltac2-tc-dispatch/theories/lookup.v b/rocq-ltac2-tc-dispatch/theories/lookup.v new file mode 100644 index 000000000..1524fa842 --- /dev/null +++ b/rocq-ltac2-tc-dispatch/theories/lookup.v @@ -0,0 +1,76 @@ +(* + * Copyright (C) 2026 SkyLabs AI, Inc. + *) +Require Import Ltac2.Ltac2. +Require Import Ltac2.Control. +Require Import Ltac2.Printf. + + +Require Import Ltac2.Std. +Require Import Stdlib.Strings.PrimString. +Require Import skylabs.ltac2.extra.extra. + +Declare ML Module "ltac2-tc-dispatch.plugin". + +(* The typeclass: P is the goal/type, path is the module hierarchy, name is the tactic *) +Class Ltac2Lookup (P : Prop) := { + ltac2_path : list string; + ltac2_name : string; + }. + +Module ltac2. + + Ltac2 @ external resolve_ltac2 : string list -> string -> (unit -> unit) option := + "ltac2_tc_dispatch" "resolve_ltac2". + + Ltac2 Type exn ::= [ UnexpectedConstr (string * constr) ]. + + Ltac2 string_of_pstring_constr (c : constr) : string := + match Constr.Unsafe.kind c with + | Constr.Unsafe.String s => Pstring.to_string s + | _ => throw (UnexpectedConstr("Expected a pstring", c)) + end. + + Ltac2 rec list_of_list_constr (f : constr -> 'a) (c : constr) : 'a list := + lazy_match! c with + | List.nil => [] + | List.cons ?c ?cs => f c :: list_of_list_constr f cs + end. + + Ltac2 goal_dispatch_with (dbs : ident list option) := + let g := Control.goal () in + let query := constr:(Ltac2Lookup $g) in + (* let _ := printf "query=%t" query in *) + let inst := Constr.Unsafe.make (TC.resolve dbs query) in + (* let _ := printf "inst=%t" inst in *) + let flags := RedFlags.all in + let reduced_inst := Std.eval_cbv flags inst in + (* let _ := printf "reduced_inst=%t" reduced_inst in *) + + lazy_match! reduced_inst with + | {| ltac2_path := ?p; ltac2_name := ?n |} => + let p_ltac2 := list_of_list_constr (fun c => string_of_pstring_constr c) p in + let n_ltac2 := string_of_pstring_constr n in + (* printf "n_ltac2=%s" n_ltac2 ; *) + + match resolve_ltac2 p_ltac2 n_ltac2 with + | Some f => + (* let _ := printf "resolve_ltac2 success!" in *) + f () + | None => + (* let _ := printf "resolve_ltac2 failed!" in *) + + let err := + Message.concat [Message.of_string "Could not find: "; + Message.of_string n_ltac2] in + Control.zero (Tactic_failure (Some err)) + end + | _ => + Control.zero (Tactic_failure (Some (Message.of_string "Could not reduce instance to record."))) + end. + +End ltac2. + +Ltac goal_dispatch := + idtac; + ltac2:(ltac2.goal_dispatch_with None).