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|
(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
open Names
open Term
open Environ
open Type_errors
(** {6 The type of errors raised by the pretyper } *)
type unification_error =
| OccurCheck of existential_key * constr
| NotClean of existential * env * constr
| NotSameArgSize
| NotSameHead
| NoCanonicalStructure
| ConversionFailed of env * constr * constr
| MetaOccurInBody of existential_key
| InstanceNotSameType of existential_key * env * types * types
| UnifUnivInconsistency of Univ.univ_inconsistency
| CannotSolveConstraint of Evd.evar_constraint * unification_error
| ProblemBeyondCapabilities
type position = (Id.t * Locus.hyp_location_flag) option
type position_reporting = (position * int) * constr
type subterm_unification_error = bool * position_reporting * position_reporting * (constr * constr * unification_error) option
type pretype_error =
(** Old Case *)
| CantFindCaseType of constr
(** Type inference unification *)
| ActualTypeNotCoercible of unsafe_judgment * types * unification_error
(** Tactic Unification *)
| UnifOccurCheck of existential_key * constr
| UnsolvableImplicit of existential_key * Evd.unsolvability_explanation option
| CannotUnify of constr * constr * unification_error option
| CannotUnifyLocal of constr * constr * constr
| CannotUnifyBindingType of constr * constr
| CannotGeneralize of constr
| NoOccurrenceFound of constr * Id.t option
| CannotFindWellTypedAbstraction of constr * constr list * (env * type_error) option
| WrongAbstractionType of Name.t * constr * types * types
| AbstractionOverMeta of Name.t * Name.t
| NonLinearUnification of Name.t * constr
(** Pretyping *)
| VarNotFound of Id.t
| UnexpectedType of constr * constr
| NotProduct of constr
| TypingError of type_error
| CannotUnifyOccurrences of subterm_unification_error
| UnsatisfiableConstraints of
(existential_key * Evar_kinds.t) option * Evar.Set.t option
(** unresolvable evar, connex component *)
exception PretypeError of env * Evd.evar_map * pretype_error
val precatchable_exception : exn -> bool
(** Raising errors *)
val error_actual_type_loc :
Loc.t -> env -> Evd.evar_map -> unsafe_judgment -> constr ->
unification_error -> 'b
val error_cant_apply_not_functional_loc :
Loc.t -> env -> Evd.evar_map ->
unsafe_judgment -> unsafe_judgment list -> 'b
val error_cant_apply_bad_type_loc :
Loc.t -> env -> Evd.evar_map -> int * constr * constr ->
unsafe_judgment -> unsafe_judgment list -> 'b
val error_case_not_inductive_loc :
Loc.t -> env -> Evd.evar_map -> unsafe_judgment -> 'b
val error_ill_formed_branch_loc :
Loc.t -> env -> Evd.evar_map ->
constr -> pconstructor -> constr -> constr -> 'b
val error_number_branches_loc :
Loc.t -> env -> Evd.evar_map ->
unsafe_judgment -> int -> 'b
val error_ill_typed_rec_body_loc :
Loc.t -> env -> Evd.evar_map ->
int -> Name.t array -> unsafe_judgment array -> types array -> 'b
val error_not_a_type_loc :
Loc.t -> env -> Evd.evar_map -> unsafe_judgment -> 'b
val error_cannot_coerce : env -> Evd.evar_map -> constr * constr -> 'b
(** {6 Implicit arguments synthesis errors } *)
val error_occur_check : env -> Evd.evar_map -> existential_key -> constr -> 'b
val error_unsolvable_implicit :
Loc.t -> env -> Evd.evar_map -> existential_key ->
Evd.unsolvability_explanation option -> 'b
val error_cannot_unify_loc : Loc.t -> env -> Evd.evar_map ->
?reason:unification_error -> constr * constr -> 'b
val error_cannot_unify : env -> Evd.evar_map -> ?reason:unification_error ->
constr * constr -> 'b
val error_cannot_unify_local : env -> Evd.evar_map -> constr * constr * constr -> 'b
val error_cannot_find_well_typed_abstraction : env -> Evd.evar_map ->
constr -> constr list -> (env * type_error) option -> 'b
val error_wrong_abstraction_type : env -> Evd.evar_map ->
Name.t -> constr -> types -> types -> 'b
val error_abstraction_over_meta : env -> Evd.evar_map ->
metavariable -> metavariable -> 'b
val error_non_linear_unification : env -> Evd.evar_map ->
metavariable -> constr -> 'b
(** {6 Ml Case errors } *)
val error_cant_find_case_type_loc :
Loc.t -> env -> Evd.evar_map -> constr -> 'b
(** {6 Pretyping errors } *)
val error_unexpected_type_loc :
Loc.t -> env -> Evd.evar_map -> constr -> constr -> 'b
val error_not_product_loc :
Loc.t -> env -> Evd.evar_map -> constr -> 'b
(** {6 Error in conversion from AST to glob_constr } *)
val error_var_not_found_loc : Loc.t -> Id.t -> 'b
(** {6 Typeclass errors } *)
val unsatisfiable_constraints : env -> Evd.evar_map -> Evd.evar option ->
Evar.Set.t option -> 'a
val unsatisfiable_exception : exn -> bool
|
