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(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <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) *)
(************************************************************************)
(** Untyped intermediate terms *)
(** [glob_constr] comes after [constr_expr] and before [constr].
Resolution of names, insertion of implicit arguments placeholder,
and notations are done, but coercions, inference of implicit
arguments and pattern-matching compilation are not. *)
open Names
type existential_name = Id.t
(** Sorts *)
type glob_sort_name =
| GSProp (** representation of [SProp] literal *)
| GProp (** representation of [Prop] level *)
| GSet (** representation of [Set] level *)
| GType of Libnames.qualid (** representation of a [Type] level *)
type 'a glob_sort_expr =
| UAnonymous of { rigid : bool } (** not rigid = unifiable by minimization *)
| UNamed of 'a
(** levels, occurring in universe instances *)
type glob_level = glob_sort_name glob_sort_expr
(** sort expressions *)
type glob_sort = (glob_sort_name * int) list glob_sort_expr
type glob_constraint = glob_sort_name * Univ.constraint_type * glob_sort_name
type glob_recarg = int option
and glob_fix_kind =
| GFix of (glob_recarg array * int)
| GCoFix of int
(** Casts *)
type 'a cast_type =
| CastConv of 'a
| CastVM of 'a
| CastCoerce (** Cast to a base type (eg, an underlying inductive type) *)
| CastNative of 'a
(** The kind of patterns that occurs in "match ... with ... end"
locs here refers to the ident's location, not whole pat *)
type 'a cases_pattern_r =
| PatVar of Name.t
| PatCstr of constructor * 'a cases_pattern_g list * Name.t
(** [PatCstr(p,C,l,x)] = "|'C' 'l' as 'x'" *)
and 'a cases_pattern_g = ('a cases_pattern_r, 'a) DAst.t
type cases_pattern = [ `any ] cases_pattern_g
type binding_kind = Explicit | Implicit
(** Representation of an internalized (or in other words globalized) term. *)
type 'a glob_constr_r =
| GRef of GlobRef.t * glob_level list option
(** An identifier that represents a reference to an object defined
either in the (global) environment or in the (local) context. *)
| GVar of Id.t
(** An identifier that cannot be regarded as "GRef".
Bound variables are typically represented this way. *)
| GEvar of existential_name * (Id.t * 'a glob_constr_g) list
| GPatVar of Evar_kinds.matching_var_kind (** Used for patterns only *)
| GApp of 'a glob_constr_g * 'a glob_constr_g list
| GLambda of Name.t * binding_kind * 'a glob_constr_g * 'a glob_constr_g
| GProd of Name.t * binding_kind * 'a glob_constr_g * 'a glob_constr_g
| GLetIn of Name.t * 'a glob_constr_g * 'a glob_constr_g option * 'a glob_constr_g
| GCases of Constr.case_style * 'a glob_constr_g option * 'a tomatch_tuples_g * 'a cases_clauses_g
(** [GCases(style,r,tur,cc)] = "match 'tur' return 'r' with 'cc'" (in [MatchStyle]) *)
| GLetTuple of Name.t list * (Name.t * 'a glob_constr_g option) * 'a glob_constr_g * 'a glob_constr_g
| GIf of 'a glob_constr_g * (Name.t * 'a glob_constr_g option) * 'a glob_constr_g * 'a glob_constr_g
| GRec of glob_fix_kind * Id.t array * 'a glob_decl_g list array *
'a glob_constr_g array * 'a glob_constr_g array
| GSort of glob_sort
| GHole of Evar_kinds.t * Namegen.intro_pattern_naming_expr * Genarg.glob_generic_argument option
| GCast of 'a glob_constr_g * 'a glob_constr_g cast_type
| GInt of Uint63.t
and 'a glob_constr_g = ('a glob_constr_r, 'a) DAst.t
and 'a glob_decl_g = Name.t * binding_kind * 'a glob_constr_g option * 'a glob_constr_g
and 'a predicate_pattern_g =
Name.t * (inductive * Name.t list) CAst.t option
(** [(na,id)] = "as 'na' in 'id'" where if [id] is [Some(l,I,k,args)]. *)
and 'a tomatch_tuple_g = ('a glob_constr_g * 'a predicate_pattern_g)
and 'a tomatch_tuples_g = 'a tomatch_tuple_g list
and 'a cases_clause_g = (Id.t list * 'a cases_pattern_g list * 'a glob_constr_g) CAst.t
(** [(p,il,cl,t)] = "|'cl' => 't'". Precondition: the free variables
of [t] are members of [il]. *)
and 'a cases_clauses_g = 'a cases_clause_g list
type glob_constr = [ `any ] glob_constr_g
type tomatch_tuple = [ `any ] tomatch_tuple_g
type tomatch_tuples = [ `any ] tomatch_tuples_g
type cases_clause = [ `any ] cases_clause_g
type cases_clauses = [ `any ] cases_clauses_g
type glob_decl = [ `any ] glob_decl_g
type predicate_pattern = [ `any ] predicate_pattern_g
type any_glob_constr = AnyGlobConstr : 'r glob_constr_g -> any_glob_constr
type 'a disjunctive_cases_clause_g = (Id.t list * 'a cases_pattern_g list list * 'a glob_constr_g) CAst.t
type 'a disjunctive_cases_clauses_g = 'a disjunctive_cases_clause_g list
type 'a cases_pattern_disjunction_g = 'a cases_pattern_g list
type disjunctive_cases_clause = [ `any ] disjunctive_cases_clause_g
type disjunctive_cases_clauses = [ `any ] disjunctive_cases_clauses_g
type cases_pattern_disjunction = [ `any ] cases_pattern_disjunction_g
type 'a extended_glob_local_binder_r =
| GLocalAssum of Name.t * binding_kind * 'a glob_constr_g
| GLocalDef of Name.t * binding_kind * 'a glob_constr_g * 'a glob_constr_g option
| GLocalPattern of ('a cases_pattern_disjunction_g * Id.t list) * Id.t * binding_kind * 'a glob_constr_g
and 'a extended_glob_local_binder_g = ('a extended_glob_local_binder_r, 'a) DAst.t
type extended_glob_local_binder = [ `any ] extended_glob_local_binder_g