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diff --git a/interp/notation_term.ml b/interp/notation_term.ml new file mode 100644 index 00000000..5fb0ca1b --- /dev/null +++ b/interp/notation_term.ml @@ -0,0 +1,98 @@ +(************************************************************************) +(* * 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) *) +(************************************************************************) + +open Names +open Glob_term + +(** [notation_constr] *) + +(** [notation_constr] is the subtype of [glob_constr] allowed in syntactic + extensions (i.e. notations). + No location since intended to be substituted at any place of a text. + Complex expressions such as fixpoints and cofixpoints are excluded, + as well as non global expressions such as existential variables. *) + +type notation_constr = + (** Part common to [glob_constr] and [cases_pattern] *) + | NRef of GlobRef.t + | NVar of Id.t + | NApp of notation_constr * notation_constr list + | NHole of Evar_kinds.t * Namegen.intro_pattern_naming_expr * Genarg.glob_generic_argument option + | NList of Id.t * Id.t * notation_constr * notation_constr * (* associativity: *) bool + (** Part only in [glob_constr] *) + | NLambda of Name.t * notation_constr * notation_constr + | NProd of Name.t * notation_constr * notation_constr + | NBinderList of Id.t * Id.t * notation_constr * notation_constr * (* associativity: *) bool + | NLetIn of Name.t * notation_constr * notation_constr option * notation_constr + | NCases of Constr.case_style * notation_constr option * + (notation_constr * (Name.t * (inductive * Name.t list) option)) list * + (cases_pattern list * notation_constr) list + | NLetTuple of Name.t list * (Name.t * notation_constr option) * + notation_constr * notation_constr + | NIf of notation_constr * (Name.t * notation_constr option) * + notation_constr * notation_constr + | NRec of fix_kind * Id.t array * + (Name.t * notation_constr option * notation_constr) list array * + notation_constr array * notation_constr array + | NSort of glob_sort + | NCast of notation_constr * notation_constr cast_type + +(** Note concerning NList: first constr is iterator, second is terminator; + first id is where each argument of the list has to be substituted + in iterator and snd id is alternative name just for printing; + boolean is associativity *) + +(** Types concerning notations *) + +type scope_name = string + +type tmp_scope_name = scope_name + +type subscopes = tmp_scope_name option * scope_name list + +type extended_subscopes = Constrexpr.notation_entry_level * subscopes + +(** Type of the meta-variables of an notation_constr: in a recursive pattern x..y, + x carries the sequence of objects bound to the list x..y *) + +type constr_as_binder_kind = + | AsIdent + | AsIdentOrPattern + | AsStrictPattern + +type notation_binder_source = + (* This accepts only pattern *) + (* NtnParsedAsPattern true means only strict pattern (no single variable) at printing *) + | NtnParsedAsPattern of bool + (* This accepts only ident *) + | NtnParsedAsIdent + (* This accepts ident, or pattern, or both *) + | NtnBinderParsedAsConstr of constr_as_binder_kind + +type notation_var_instance_type = + | NtnTypeConstr | NtnTypeBinder of notation_binder_source | NtnTypeConstrList | NtnTypeBinderList + +(** Type of variables when interpreting a constr_expr as a notation_constr: + in a recursive pattern x..y, both x and y carry the individual type + of each element of the list x..y *) +type notation_var_internalization_type = + | NtnInternTypeAny | NtnInternTypeOnlyBinder + +(** This characterizes to what a notation is interpreted to *) +type interpretation = + (Id.t * (extended_subscopes * notation_var_instance_type)) list * + notation_constr + +type reversibility_status = APrioriReversible | HasLtac | NonInjective of Id.t list + +type notation_interp_env = { + ninterp_var_type : notation_var_internalization_type Id.Map.t; + ninterp_rec_vars : Id.t Id.Map.t; +} |