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Diffstat (limited to 'pretyping/redops.ml')
| -rw-r--r-- | pretyping/redops.ml | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/pretyping/redops.ml b/pretyping/redops.ml new file mode 100644 index 00000000..92782737 --- /dev/null +++ b/pretyping/redops.ml @@ -0,0 +1,38 @@ +(************************************************************************) +(* v * The Coq Proof Assistant / The Coq Development Team *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2015 *) +(* \VV/ **************************************************************) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(************************************************************************) + +open Genredexpr + +let union_consts l1 l2 = Util.List.union Pervasives.(=) l1 l2 (* FIXME *) + +let make_red_flag l = + 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 + Errors.error + "Cannot set both constants to unfold and constants not to unfold"; + add_flag { red with rConst = union_consts red.rConst l } lf + | FDeltaBut l :: lf -> + if red.rConst <> [] && not red.rDelta then + Errors.error + "Cannot set both constants to unfold and constants not to unfold"; + add_flag + { red with rConst = union_consts red.rConst l; rDelta = true } + lf + in + add_flag + {rBeta = false; rIota = false; rZeta = false; rDelta = false; rConst = []} + l + + +let all_flags = + {rBeta = true; rIota = true; rZeta = true; rDelta = true; rConst = []} |