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Diffstat (limited to 'intf/glob_term.ml')
| -rw-r--r-- | intf/glob_term.ml | 97 |
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diff --git a/intf/glob_term.ml b/intf/glob_term.ml new file mode 100644 index 000000000..5da20c9d1 --- /dev/null +++ b/intf/glob_term.ml @@ -0,0 +1,97 @@ +(************************************************************************) +(* 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 *) +(************************************************************************) + +(** 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 Globnames +open Decl_kinds +open Misctypes + +type existential_name = Id.t + +(** The kind of patterns that occurs in "match ... with ... end" + + locs here refers to the ident's location, not whole pat *) +type cases_pattern_r = + | PatVar of Name.t + | PatCstr of constructor * cases_pattern list * Name.t + (** [PatCstr(p,C,l,x)] = "|'C' 'l' as 'x'" *) +and cases_pattern = cases_pattern_r CAst.t + +(** Representation of an internalized (or in other words globalized) term. *) +type glob_constr_r = + | GRef of global_reference * 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 * glob_constr) list + | GPatVar of Evar_kinds.matching_var_kind (** Used for patterns only *) + | GApp of glob_constr * glob_constr list + | GLambda of Name.t * binding_kind * glob_constr * glob_constr + | GProd of Name.t * binding_kind * glob_constr * glob_constr + | GLetIn of Name.t * glob_constr * glob_constr option * glob_constr + | GCases of case_style * glob_constr option * tomatch_tuples * cases_clauses + (** [GCases(style,r,tur,cc)] = "match 'tur' return 'r' with 'cc'" (in [MatchStyle]) *) + | GLetTuple of Name.t list * (Name.t * glob_constr option) * glob_constr * glob_constr + | GIf of glob_constr * (Name.t * glob_constr option) * glob_constr * glob_constr + | GRec of fix_kind * Id.t array * glob_decl list array * + glob_constr array * glob_constr array + | GSort of glob_sort + | GHole of Evar_kinds.t * intro_pattern_naming_expr * Genarg.glob_generic_argument option + | GCast of glob_constr * glob_constr cast_type +and glob_constr = glob_constr_r CAst.t + +and glob_decl = Name.t * binding_kind * glob_constr option * glob_constr + +and fix_recursion_order = + | GStructRec + | GWfRec of glob_constr + | GMeasureRec of glob_constr * glob_constr option + +and fix_kind = + | GFix of ((int option * fix_recursion_order) array * int) + | GCoFix of int + +and predicate_pattern = + Name.t * (inductive * Name.t list) Loc.located option + (** [(na,id)] = "as 'na' in 'id'" where if [id] is [Some(l,I,k,args)]. *) + +and tomatch_tuple = (glob_constr * predicate_pattern) + +and tomatch_tuples = tomatch_tuple list + +and cases_clause = (Id.t list * cases_pattern list * glob_constr) Loc.located +(** [(p,il,cl,t)] = "|'cl' => 't'". Precondition: the free variables + of [t] are members of [il]. *) +and cases_clauses = cases_clause list + +type extended_glob_local_binder_r = + | GLocalAssum of Name.t * binding_kind * glob_constr + | GLocalDef of Name.t * binding_kind * glob_constr * glob_constr option + | GLocalPattern of (cases_pattern * Id.t list) * Id.t * binding_kind * glob_constr +and extended_glob_local_binder = extended_glob_local_binder_r CAst.t + +(** A globalised term together with a closure representing the value + of its free variables. Intended for use when these variables are taken + from the Ltac environment. *) +type closure = { + idents:Id.t Id.Map.t; + typed: Pattern.constr_under_binders Id.Map.t ; + untyped:closed_glob_constr Id.Map.t } +and closed_glob_constr = { + closure: closure; + term: glob_constr } |