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Diffstat (limited to 'pretyping/glob_term.ml')
| -rw-r--r-- | pretyping/glob_term.ml | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/pretyping/glob_term.ml b/pretyping/glob_term.ml new file mode 100644 index 00000000..c6fdb0ec --- /dev/null +++ b/pretyping/glob_term.ml @@ -0,0 +1,137 @@ +(************************************************************************) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <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 +open Decl_kinds + +type existential_name = Id.t + +(** Sorts *) + +type 'a glob_sort_gen = + | GProp (** representation of [Prop] literal *) + | GSet (** representation of [Set] literal *) + | GType of 'a (** representation of [Type] literal *) + +type 'a universe_kind = + | UAnonymous + | UUnknown + | UNamed of 'a + +type level_info = Libnames.qualid universe_kind +type glob_level = level_info glob_sort_gen +type glob_constraint = glob_level * Univ.constraint_type * glob_level + +type sort_info = (Libnames.qualid * int) option list +type glob_sort = sort_info glob_sort_gen + +(** 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 + +(** 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 'a fix_kind_g * 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 +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 fix_recursion_order_g = + | GStructRec + | GWfRec of 'a glob_constr_g + | GMeasureRec of 'a glob_constr_g * 'a glob_constr_g option + +and 'a fix_kind_g = + | GFix of ((int option * 'a fix_recursion_order_g) array * int) + | GCoFix of int + +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 fix_kind = [ `any ] fix_kind_g +type predicate_pattern = [ `any ] predicate_pattern_g +type fix_recursion_order = [ `any ] fix_recursion_order_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 |