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| author |  Pierre-Marie Pédrot <pierre-marie.pedrot@inria.fr> | 2017-09-09 21:47:17 +0200 |
|---|---|---|
| committer | Pierre-Marie Pédrot <pierre-marie.pedrot@inria.fr> | 2017-09-28 16:51:21 +0200 |
| commit | d28304f6ba18ad9527a63cd01b39a5ad27526845 (patch) | |
| tree | ddd8c5d10f0d1e52c675e8e027053fac7f05f259 /plugins/ltac/evar_tactics.ml | |
| parent | b9740771e8113cb9e607793887be7a12587d0326 (diff) | |
Efficient fresh name generation relying on sets.
The old algorithm was relying on list membership, which is O(n). This was
nefarious for terms with many binders. We use instead sets in O(log n).
Diffstat (limited to 'plugins/ltac/evar_tactics.ml')
| -rw-r--r-- | plugins/ltac/evar_tactics.ml | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/plugins/ltac/evar_tactics.ml b/plugins/ltac/evar_tactics.ml index 4cab6ef33..be1d947d3 100644 --- a/plugins/ltac/evar_tactics.ml +++ b/plugins/ltac/evar_tactics.ml @@ -88,7 +88,7 @@ let let_evar name typ = let id = match name with | Name.Anonymous -> let id = Namegen.id_of_name_using_hdchar env sigma typ name in - Namegen.next_ident_away_in_goal id (Termops.ids_of_named_context (Environ.named_context env)) + Namegen.next_ident_away_in_goal id (Context.Named.to_vars (Environ.named_context env)) | Name.Name id -> id in let (sigma, evar) = Evarutil.new_evar env sigma ~src ~naming:(Misctypes.IntroFresh id) typ in |