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Diffstat (limited to 'pretyping/heads.mli')
| -rw-r--r-- | pretyping/heads.mli | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/pretyping/heads.mli b/pretyping/heads.mli new file mode 100644 index 00000000..42124299 --- /dev/null +++ b/pretyping/heads.mli @@ -0,0 +1,28 @@ +(************************************************************************) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) +(* \VV/ **************************************************************) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) +(************************************************************************) + +open Names +open Constr +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 |