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Diffstat (limited to 'library/heads.mli')
| -rw-r--r-- | library/heads.mli | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/library/heads.mli b/library/heads.mli new file mode 100644 index 00000000..52270b49 --- /dev/null +++ b/library/heads.mli @@ -0,0 +1,28 @@ +(************************************************************************) +(* v * The Coq Proof Assistant / The Coq Development Team *) +(* <O___,, * CNRS-Ecole Polytechnique-INRIA Futurs-Universite Paris Sud *) +(* \VV/ **************************************************************) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(************************************************************************) + +(* $Id: heads.mli 10841 2008-04-24 07:19:57Z herbelin $ *) + +open Names +open Term +open Environ + +(** This module is about the computation of an approximation of the + head symbol of defined constants and local definitions; it + provides the function to compute the head symbols and a table to + store the heads *) + +(* [declared_head] computes and registers the head symbol of a + possibly evaluable constant or variable *) + +val declare_head : evaluable_global_reference -> unit + +(* [is_rigid] tells if some term is known to ultimately reduce to a term + with a rigid head symbol *) + +val is_rigid : env -> constr -> bool |