elim tactic: it needs two arguments, a term as well as a pattern

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

diff --git a/components/grafite_parser/grafiteParser.ml b/components/grafite_parser/grafiteParser.ml
index dac05d7bdd056d83d146bbef82e03d886efc6742..3eb64d458fe2892a44f32af5bb1ce5e0af0db1fb 100644 (file)
--- a/components/grafite_parser/grafiteParser.ml
+++ b/components/grafite_parser/grafiteParser.ml
@@ -163,13 +163,14 @@ EXTEND
     | IDENT "demodulate" -> GrafiteAst.Demodulate loc
     | IDENT "destruct"; t = tactic_term ->
         GrafiteAst.Destruct (loc, t)
-    | IDENT "elim"; what = tactic_term; using = using;
+    | IDENT "elim"; what = tactic_term; using = using; 
+       pattern = OPT pattern_spec;
        (num, idents) = intros_spec ->
-       let pattern = Some what, [], Some Ast.UserInput in
-       GrafiteAst.Elim (loc, pattern, using, num, idents)
-    | IDENT "elim"; pattern = pattern_spec; using = using;
-      (num, idents) = intros_spec ->
-       GrafiteAst.Elim (loc, pattern, using, num, idents)    
+       let pattern = match pattern with
+          | None         -> None, [], Some Ast.UserInput
+          | Some pattern -> pattern   
+       in
+       GrafiteAst.Elim (loc, what, using, pattern, num, idents)
     | IDENT "elimType"; what = tactic_term; using = using;
       (num, idents) = intros_spec ->
        GrafiteAst.ElimType (loc, what, using, num, idents)