diff options
Diffstat (limited to 'kernel/inductive.mli')
| -rw-r--r-- | kernel/inductive.mli | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/kernel/inductive.mli b/kernel/inductive.mli index 78658dc4de..5808a3fa65 100644 --- a/kernel/inductive.mli +++ b/kernel/inductive.mli @@ -79,6 +79,23 @@ val arities_of_specif : MutInd.t puniverses -> mind_specif -> types array val inductive_params : mind_specif -> int +(** Given a pattern-matching represented compactly, expands it so as to produce + lambda and let abstractions in front of the return clause and the pattern + branches. *) +val expand_case : env -> case -> (case_info * constr * case_invert * constr * constr array) + +val expand_case_specif : mutual_inductive_body -> case -> (case_info * constr * case_invert * constr * constr array) + +(** Dual operation of the above. Fails if the return clause or branch has not + the expected form. *) +val contract_case : env -> (case_info * constr * case_invert * constr * constr array) -> case + +(** [instantiate_context u subst nas ctx] applies both [u] and [subst] + to [ctx] while replacing names using [nas] (order reversed). In particular, + assumes that [ctx] and [nas] have the same length. *) +val instantiate_context : Instance.t -> Vars.substl -> Name.t Context.binder_annot array -> + rel_context -> rel_context + (** [type_case_branches env (I,args) (p:A) c] computes useful types about the following Cases expression: <p>Cases (c :: (I args)) of b1..bn end |