diff options
Diffstat (limited to 'proofs/tacops.ml')
| -rw-r--r-- | proofs/tacops.ml | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/proofs/tacops.ml b/proofs/tacops.ml new file mode 100644 index 000000000..05c4e6093 --- /dev/null +++ b/proofs/tacops.ml @@ -0,0 +1,51 @@ +(************************************************************************) +(* v * The Coq Proof Assistant / The Coq Development Team *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2010 *) +(* \VV/ **************************************************************) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(************************************************************************) + +open Names +open Topconstr +open Libnames +open Nametab +open Glob_term +open Errors +open Util +open Genarg +open Pattern +open Decl_kinds +open Misctypes +open Locus +open Tacexpr + +let make_red_flag = + let rec add_flag red = function + | [] -> red + | FBeta :: lf -> add_flag { red with rBeta = true } lf + | FIota :: lf -> add_flag { red with rIota = true } lf + | FZeta :: lf -> add_flag { red with rZeta = true } lf + | FConst l :: lf -> + if red.rDelta then + error + "Cannot set both constants to unfold and constants not to unfold"; + add_flag { red with rConst = list_union red.rConst l } lf + | FDeltaBut l :: lf -> + if red.rConst <> [] & not red.rDelta then + error + "Cannot set both constants to unfold and constants not to unfold"; + add_flag + { red with rConst = list_union red.rConst l; rDelta = true } + lf + in + add_flag + {rBeta = false; rIota = false; rZeta = false; rDelta = false; rConst = []} + +open Pp + +let pr_move_location pr_id = function + | MoveAfter id -> brk(1,1) ++ str "after " ++ pr_id id + | MoveBefore id -> brk(1,1) ++ str "before " ++ pr_id id + | MoveFirst -> str " at top" + | MoveLast -> str " at bottom" |