initial implementation of `ncoercion name : type := body on name : pat to pat`

[helm.git] / helm / software / components / grafite_parser / grafiteParser.ml

diff --git a/helm/software/components/grafite_parser/grafiteParser.ml b/helm/software/components/grafite_parser/grafiteParser.ml
index ea74231adb46762d2a5c41e7af435b0855a38e62..dfef4d237a0ea34c8883b2b23b1e734fb46b8fcd 100644 (file)
--- a/helm/software/components/grafite_parser/grafiteParser.ml
+++ b/helm/software/components/grafite_parser/grafiteParser.ml
@@ -51,11 +51,11 @@ type 'status parser_status = {
   statement : #LE.status as 'status statement Grammar.Entry.e;
 }
 
-let grafite_callback = ref (fun _ _ -> ())
-let set_grafite_callback cb = grafite_callback := Obj.magic cb
+let grafite_callback = ref (fun _ -> ())
+let set_grafite_callback cb = grafite_callback := cb
 
-let lexicon_callback = ref (fun _ _ -> ())
-let set_lexicon_callback cb = lexicon_callback := Obj.magic cb
+let lexicon_callback = ref (fun _ -> ())
+let set_lexicon_callback cb = lexicon_callback := cb
 
 let initial_parser () = 
   let grammar = CicNotationParser.level2_ast_grammar () in
@@ -262,8 +262,12 @@ EXTEND
         G.NLetIn (loc,where,t,name)
     | kind = nreduction_kind; p = pattern_spec ->
         G.NReduce (loc, kind, p)
-    | IDENT "nrewrite"; dir = direction; what = tactic_term ; where = pattern_spec ->
+    | IDENT "nrewrite"; dir = direction; what = tactic_term ; where = pattern_spec ->  
         G.NRewrite (loc, dir, what, where)
+    | IDENT "ntry"; tac = SELF -> G.NTry (loc,tac)
+    | IDENT "nrepeat"; tac = SELF -> G.NRepeat (loc,tac)
+    | LPAREN; l = LIST1 SELF; RPAREN -> G.NBlock (loc,l)
+    | IDENT "nassumption" -> G.NAssumption loc
     | SYMBOL "#"; n=IDENT -> G.NIntro (loc,n)
     | SYMBOL "#"; SYMBOL "_" -> G.NIntro (loc,"_")
     | SYMBOL "*" -> G.NCase1 (loc,"_")
@@ -825,6 +829,11 @@ EXTEND
          G.NUnivConstraint (loc, strict,u1,u2)
     | IDENT "unification"; IDENT "hint"; n = int; t = tactic_term ->
         G.UnificationHint (loc, t, n)
+    | IDENT "ncoercion"; name = IDENT; SYMBOL ":"; ty = term; 
+        SYMBOL <:unicode<def>>; t = term; "on"; 
+        id = [ IDENT | PIDENT ]; SYMBOL ":"; source = term;
+        "to"; target = term ->
+          G.NCoercion(loc,name,t,ty,(id,source),target)     
     | IDENT "nrecord" ; (params,name,ty,fields) = record_spec ->
         G.NObj (loc, N.Record (params,name,ty,fields))
   ]];
@@ -938,33 +947,35 @@ EXTEND
     [ ex = executable ->
        fun ?(never_include=false) ~include_paths status ->
           let stm = G.Executable (loc, ex) in
-          Obj.magic !grafite_callback status stm;
+          !grafite_callback stm;
          status, LSome stm
     | com = comment ->
        fun ?(never_include=false) ~include_paths status -> 
           let stm = G.Comment (loc, com) in
-          Obj.magic !grafite_callback status stm;
+          !grafite_callback stm;
          status, LSome stm
     | (iloc,fname,normal,mode) = include_command ; SYMBOL "."  ->
        fun ?(never_include=false) ~include_paths status ->
+       let _root, buri, fullpath, _rrelpath = 
+          Librarian.baseuri_of_script ~include_paths fname in
+        if never_include then raise (NoInclusionPerformed fullpath)
+        else
+         begin
          let stm =
-            G.Executable (loc, G.Command (loc, G.Include (iloc, normal, fname)))
-         in
-          Obj.magic !grafite_callback status stm;
-         let _root, buri, fullpath, _rrelpath = 
-            Librarian.baseuri_of_script ~include_paths fname 
-          in
+          G.Executable
+            (loc, G.Command (loc, G.Include (iloc,normal,`OldAndNew,fname))) in
+          !grafite_callback stm;
          let status =
-            if never_include then raise (NoInclusionPerformed fullpath)
-            else LE.eval_command status (L.Include (iloc,buri,mode,fullpath))
-          in
+           LE.eval_command status (L.Include (iloc,buri,mode,fullpath)) in
           let stm =
-            G.Executable (loc, G.Command (loc, G.Include (iloc, normal, buri)))
+          G.Executable
+            (loc,G.Command (loc,G.Include (iloc,normal,`OldAndNew,buri)))
          in
-         status, LSome stm
+          status, LSome stm
+         end
     | scom = lexicon_command ; SYMBOL "." ->
        fun ?(never_include=false) ~include_paths status ->
-          !lexicon_callback status scom;         
+          !lexicon_callback scom;        
          let status = LE.eval_command status scom in
           status, LNone loc
     | EOI -> raise End_of_file