* http://cs.unibo.it/helm/.
*)
-module H = Hashtbl
module M = Meta
module A = Aut
type context_node = M.qid option (* context node: None = root *)
-type context = (M.qid, M.term * context_node) H.t (* context: son, parent *)
+type context = (M.qid * M.term * context_node) list (* context: son, parent *)
type status = {
- genv: M.environment; (* global environment *)
- path: M.id list; (* current section path *)
- cnt: context; (* context *)
- node: context_node; (* current context node *)
- explicit: bool (* need explicit context root? *)
+ genv: M.environment; (* global environment *)
+ path: M.id list; (* current section path *)
+ cnt: context; (* context *)
+ node: context_node; (* current context node *)
+ nodes: context_node list; (* context node list *)
+ explicit: bool (* need explicit context root? *)
}
type resolver = Local of int
| Global of M.pars
- | Unresolved
let initial_status = {
- genv = []; path = []; cnt = H.create 11; node = None; explicit = true
+ genv = []; path = []; cnt = []; node = None; nodes = []; explicit = true
}
+let find f cnt qid =
+ let rec aux f = function
+ | (name, w, node) :: tl when name = qid -> f tl (Some (w, node))
+ | _ :: tl -> aux f tl
+ | [] -> f cnt None
+ in
+ aux f cnt
+
let complete_qid f st (id, is_local, qs) =
let f qs = f (id, qs) in
- if is_local then Cps.list_rev_append f st.path ~tail:qs else f qs
+ let f path = Cps.list_rev_append f path ~tail:qs in
+ let rec skip f = function
+ | phd :: ptl, qshd :: _ when phd = qshd -> f ptl
+ | _ :: ptl, _ :: _ -> skip f (ptl, qs)
+ | _ -> f []
+ in
+ if is_local then f st.path else skip f (st.path, qs)
+
+let relax_qid f (id, path) =
+ let f path = f (id, path) in
+ let f = function
+ | _ :: tl -> Cps.list_rev f tl
+ | [] -> assert false
+ in
+ Cps.list_rev f path
+
+let relax_opt_qid f = function
+ | None -> f None
+ | Some qid -> let f qid = f (Some qid) in relax_qid f qid
let resolve_gref f st lenv gref =
let rec get_local f i = function
- | [] -> f None
- | (name, _) :: _ when name = gref -> f (Some i)
- | _ :: tl -> get_local f (succ i) tl
+ | [] -> f None
+ | (name, _) :: _ when fst name = fst gref -> f (Some i)
+ | _ :: tl -> get_local f (succ i) tl
in
let rec get_global f = function
| [] -> f None
| _ :: tl -> get_global f tl
in
let g = function
- | Some args -> f (Global args)
- | None -> f Unresolved
+ | Some args -> f gref (Some (Global args))
+ | None -> f gref None
in
let f = function
- | Some i -> f (Local i)
+ | Some i -> f gref (Some (Local i))
| None -> get_global g st.genv
in
get_local f 0 lenv
+let resolve_gref_relaxed f st lenv gref =
+ let rec g gref = function
+ | None -> relax_qid (resolve_gref g st lenv) gref
+ | Some resolved -> f gref resolved
+ in
+ resolve_gref g st lenv gref
+
+let get_pars f st pars node =
+ let rec aux f cnt pars = function
+ | None ->
+ let f pars = f pars None in
+ Cps.list_rev f pars
+ | Some name as node ->
+ let f cnt = function
+ | Some (w, node) -> aux f cnt ((name, w) :: pars) node
+ | None -> f pars (Some node)
+ in
+ find f cnt name
+ in
+ aux f st.cnt pars node
+
+let get_pars_relaxed f st =
+ let rec g pars = function
+ | None -> f pars
+ | Some node -> relax_opt_qid (get_pars g st pars) node
+ in
+ get_pars g st [] st.node
+
let rec xlate_term f st lenv = function
| A.Sort sort -> f (M.Sort sort)
| A.Appl (v, t) ->
Cps.list_sub_strict f defs args
in
Cps.list_map f map1 args
- | Unresolved -> assert false
in
- let f name = resolve_gref (f name) st lenv name in
+ let f name = resolve_gref_relaxed f st lenv name in
complete_qid f st name
let xlate_item f st = function
| A.Section (Some name) ->
- f {st with path = name :: st.path}
+ f {st with path = name :: st.path; nodes = st.node :: st.nodes}
| A.Section None ->
- begin match st.path with
- | [] -> assert false
- | _ :: tl -> f {st with path = tl}
+ begin match st.path, st.nodes with
+ | _ :: ptl, nhd :: ntl ->
+ f {st with path = ptl; node = nhd; nodes = ntl}
+ | _ -> assert false
end
| A.Context None ->
f {st with node = None}
let f name = f {st with node = Some name} in
complete_qid f st name
| A.Block (name, w) ->
- let f name ww = H.add st.cnt name (ww, st.node); f st in
- let f name = xlate_term (f name) st [] w in
- complete_qid f st (name, true, [])
- | A.Decl (name, w) -> f st
- | A.Def (name, w, trans, v) -> f st
+ let f name =
+ let f ww =
+ let st = {st with cnt = (name, ww, st.node) :: st.cnt} in
+ f {st with node = Some name}
+ in
+ let f pars = xlate_term f st pars w in
+ get_pars_relaxed f st
+ in
+ complete_qid f st (name, true, [])
+ | A.Decl (name, w) ->
+ let f pars =
+ let f name =
+ let f ww =
+ let entry = (pars, name, ww, None) in
+ f {st with genv = entry :: st.genv}
+ in
+ xlate_term f st pars w
+ in
+ complete_qid f st (name, true, [])
+ in
+ get_pars_relaxed f st
+ | A.Def (name, w, trans, v) ->
+ let f pars =
+ let f name =
+ let f ww vv =
+ let entry = (pars, name, ww, Some (trans, vv)) in
+ f {st with genv = entry :: st.genv}
+ in
+ let f ww = xlate_term (f ww) st pars v in
+ xlate_term f st pars w
+ in
+ complete_qid f st (name, true, [])
+ in
+ get_pars_relaxed f st
let meta_of_aut f book =
let f st = f st.genv in
projects / helm.git / blobdiff