diff options
| author |  letouzey <letouzey@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2012-07-09 18:17:58 +0000 |
|---|---|---|
| committer | letouzey <letouzey@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2012-07-09 18:17:58 +0000 |
| commit | f3870c96a192ff52449db9695b1c160834ff023f (patch) | |
| tree | c5b02c6e9a12df51ce7ca5005e0bdf0c58d74cec /intf | |
| parent | 06d096b3ff3dff8cca216091c0c5ffa3a7530e1d (diff) | |
induction/destruct : nicer syntax for generating equations (solves #2741)
The ugly syntax "destruct x as [ ]_eqn:H" is replaced by:
destruct x eqn:H
destruct x as [ ] eqn:H
Some with induction. Of course, the pattern behind "as" is arbitrary.
For an anonymous version, H could be replaced by ?. The old syntax
with "_eqn" still works for the moment, by triggers a warning.
For making this new syntax work, we had to change the seldom-used
"induction x y z using foo" into "induction x, y, z using foo".
Now, only one "using" can be used per command instead of one per
comma-separated group earlier, but I doubt this will bother anyone.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15566 85f007b7-540e-0410-9357-904b9bb8a0f7
Diffstat (limited to 'intf')
| -rw-r--r-- | intf/tacexpr.mli | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/intf/tacexpr.mli b/intf/tacexpr.mli index ccf682a48..a70ed47d4 100644 --- a/intf/tacexpr.mli +++ b/intf/tacexpr.mli @@ -58,11 +58,14 @@ type 'id message_token = | MsgIdent of 'id type 'constr induction_clause = - ('constr with_bindings induction_arg list * 'constr with_bindings option * - (intro_pattern_expr located option * intro_pattern_expr located option)) + 'constr with_bindings induction_arg * + (intro_pattern_expr located option (* eqn:... *) + * intro_pattern_expr located option) (* as ... *) type ('constr,'id) induction_clause_list = - 'constr induction_clause list * 'id clause_expr option + 'constr induction_clause list + * 'constr with_bindings option (* using ... *) + * 'id clause_expr option (* in ... *) type multi = | Precisely of int |