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Diffstat (limited to 'pretyping/evarsolve.mli')
-rw-r--r-- | pretyping/evarsolve.mli | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/pretyping/evarsolve.mli b/pretyping/evarsolve.mli new file mode 100644 index 00000000..21d97609 --- /dev/null +++ b/pretyping/evarsolve.mli @@ -0,0 +1,74 @@ +(************************************************************************) +(* 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 Term +open Evd +open Environ + +type unification_result = + | Success of evar_map + | UnifFailure of evar_map * Pretype_errors.unification_error + +val is_success : unification_result -> bool + +(** Replace the vars and rels that are aliases to other vars and rels by + their representative that is most ancient in the context *) +val expand_vars_in_term : env -> constr -> constr + +(** [evar_define choose env ev c] try to instantiate [ev] with [c] (typed in [env]), + possibly solving related unification problems, possibly leaving open + some problems that cannot be solved in a unique way (except if choose is + true); fails if the instance is not valid for the given [ev] *) + +type conv_fun = + env -> evar_map -> conv_pb -> constr -> constr -> unification_result + +type conv_fun_bool = + env -> evar_map -> conv_pb -> constr -> constr -> bool + +val evar_define : conv_fun -> ?choose:bool -> env -> evar_map -> + bool option -> existential -> constr -> evar_map + +val refresh_universes : ?inferred:bool -> ?onlyalg:bool (* Only algebraic universes *) -> + bool option (* direction: true for levels lower than the existing levels *) -> + env -> evar_map -> types -> evar_map * types + +val solve_refl : ?can_drop:bool -> conv_fun_bool -> env -> evar_map -> + bool option -> existential_key -> constr array -> constr array -> evar_map + +val solve_evar_evar : ?force:bool -> + (env -> evar_map -> bool option -> existential -> constr -> evar_map) -> + conv_fun -> + env -> evar_map -> bool option -> existential -> existential -> evar_map + +val solve_simple_eqn : conv_fun -> ?choose:bool -> env -> evar_map -> + bool option * existential * constr -> unification_result + +val reconsider_conv_pbs : conv_fun -> evar_map -> unification_result + +val is_unification_pattern_evar : env -> evar_map -> existential -> constr list -> + constr -> constr list option + +val is_unification_pattern : env * int -> evar_map -> constr -> constr list -> + constr -> constr list option + +val solve_pattern_eqn : env -> constr list -> constr -> constr + +val noccur_evar : env -> evar_map -> Evar.t -> constr -> bool + +exception IllTypedInstance of env * types * types + +(* May raise IllTypedInstance if types are not convertible *) +val check_evar_instance : + evar_map -> existential_key -> constr -> conv_fun -> evar_map + +val remove_instance_local_defs : + evar_map -> existential_key -> constr array -> constr list + +val get_type_of_refresh : + ?polyprop:bool -> ?lax:bool -> env -> evar_map -> constr -> evar_map * types |