author | blanchet |
Wed, 28 Dec 2016 17:22:16 +0100 | |
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parent 63719 | 9084d77f1119 |
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permissions | -rw-r--r-- |
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(* Title: HOL/Tools/BNF/bnf_lfp_rec_sugar.ML |
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Author: Lorenz Panny, TU Muenchen |
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Author: Jasmin Blanchette, TU Muenchen |
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Copyright 2013 |
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Recursor sugar ("primrec"). |
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*) |
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signature BNF_LFP_REC_SUGAR = |
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sig |
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datatype rec_option = |
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Plugins_Option of Proof.context -> Plugin_Name.filter | |
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Nonexhaustive_Option | |
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Transfer_Option |
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datatype rec_call = |
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No_Rec of int * typ | |
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Mutual_Rec of (int * typ) * (int * typ) | |
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Nested_Rec of int * typ |
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type rec_ctr_spec = |
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{ctr: term, |
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offset: int, |
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calls: rec_call list, |
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rec_thm: thm} |
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type rec_spec = |
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{recx: term, |
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fp_nesting_map_ident0s: thm list, |
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fp_nesting_map_comps: thm list, |
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fp_nesting_pred_maps: thm list, |
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ctr_specs: rec_ctr_spec list} |
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type basic_lfp_sugar = |
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{T: typ, |
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fp_res_index: int, |
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C: typ, |
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fun_arg_Tsss : typ list list list, |
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ctr_sugar: Ctr_Sugar.ctr_sugar, |
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recx: term, |
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rec_thms: thm list}; |
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type lfp_rec_extension = |
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{nested_simps: thm list, |
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is_new_datatype: Proof.context -> string -> bool, |
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basic_lfp_sugars_of: binding list -> typ list -> term list -> |
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(term * term list list) list list -> local_theory -> |
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typ list * int list * basic_lfp_sugar list * thm list * thm list * thm list * thm |
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* Token.src list * bool * local_theory, |
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rewrite_nested_rec_call: (Proof.context -> (term -> bool) -> (string -> int) -> typ list -> |
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term -> term -> term -> term) option}; |
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val register_lfp_rec_extension: lfp_rec_extension -> theory -> theory |
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val default_basic_lfp_sugars_of: binding list -> typ list -> term list -> |
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(term * term list list) list list -> local_theory -> |
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typ list * int list * basic_lfp_sugar list * thm list * thm list * thm list * thm |
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* Token.src list * bool * local_theory |
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val rec_specs_of: binding list -> typ list -> typ list -> term list -> |
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(term * term list list) list list -> local_theory -> |
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(bool * rec_spec list * typ list * thm * thm list * Token.src list * typ list) * local_theory |
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val lfp_rec_sugar_interpretation: string -> |
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(BNF_FP_Rec_Sugar_Util.fp_rec_sugar -> local_theory -> local_theory) -> theory -> theory |
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val primrec: bool -> rec_option list -> (binding * typ option * mixfix) list -> |
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Specification.multi_specs -> local_theory -> |
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(term list * thm list * thm list list) * local_theory |
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val primrec_cmd: bool -> rec_option list -> (binding * string option * mixfix) list -> |
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Specification.multi_specs_cmd -> local_theory -> |
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(term list * thm list * thm list list) * local_theory |
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val primrec_global: bool -> rec_option list -> (binding * typ option * mixfix) list -> |
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Specification.multi_specs -> theory -> (term list * thm list * thm list list) * theory |
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val primrec_overloaded: bool -> rec_option list -> (string * (string * typ) * bool) list -> |
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(binding * typ option * mixfix) list -> |
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Specification.multi_specs -> theory -> (term list * thm list * thm list list) * theory |
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val primrec_simple: bool -> ((binding * typ) * mixfix) list -> term list -> local_theory -> |
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((string list * (binding -> binding) list) |
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* (term list * thm list * (int list list * thm list list))) * local_theory |
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end; |
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structure BNF_LFP_Rec_Sugar : BNF_LFP_REC_SUGAR = |
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struct |
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open Ctr_Sugar |
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open Ctr_Sugar_Util |
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open Ctr_Sugar_General_Tactics |
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open BNF_FP_Rec_Sugar_Util |
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val inductN = "induct"; |
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val simpsN = "simps"; |
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val nitpicksimp_attrs = @{attributes [nitpick_simp]}; |
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val simp_attrs = @{attributes [simp]}; |
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val nitpicksimp_simp_attrs = nitpicksimp_attrs @ simp_attrs; |
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exception OLD_PRIMREC of unit; |
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fun malformed_eqn_lhs_rhs ctxt eqn = |
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error_at ctxt [eqn] "Malformed equation (expected \"lhs = rhs\")"; |
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fun malformed_eqn_head ctxt eqn = |
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error_at ctxt [eqn] "Malformed function equation (expected function name on left-hand side)"; |
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datatype rec_option = |
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Plugins_Option of Proof.context -> Plugin_Name.filter | |
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Nonexhaustive_Option | |
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Transfer_Option; |
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datatype rec_call = |
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No_Rec of int * typ | |
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Mutual_Rec of (int * typ) * (int * typ) | |
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Nested_Rec of int * typ; |
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type rec_ctr_spec = |
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{ctr: term, |
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offset: int, |
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calls: rec_call list, |
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rec_thm: thm}; |
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type rec_spec = |
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{recx: term, |
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fp_nesting_map_ident0s: thm list, |
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fp_nesting_map_comps: thm list, |
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fp_nesting_pred_maps: thm list, |
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ctr_specs: rec_ctr_spec list}; |
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type basic_lfp_sugar = |
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{T: typ, |
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fp_res_index: int, |
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C: typ, |
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fun_arg_Tsss : typ list list list, |
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ctr_sugar: ctr_sugar, |
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recx: term, |
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rec_thms: thm list}; |
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type lfp_rec_extension = |
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{nested_simps: thm list, |
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is_new_datatype: Proof.context -> string -> bool, |
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basic_lfp_sugars_of: binding list -> typ list -> term list -> |
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(term * term list list) list list -> local_theory -> |
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typ list * int list * basic_lfp_sugar list * thm list * thm list * thm list * thm |
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141 |
* Token.src list * bool * local_theory, |
58389 | 142 |
rewrite_nested_rec_call: (Proof.context -> (term -> bool) -> (string -> int) -> typ list -> |
143 |
term -> term -> term -> term) option}; |
|
55571 | 144 |
|
145 |
structure Data = Theory_Data |
|
146 |
( |
|
147 |
type T = lfp_rec_extension option; |
|
148 |
val empty = NONE; |
|
149 |
val extend = I; |
|
150 |
val merge = merge_options; |
|
151 |
); |
|
55538 | 152 |
|
55571 | 153 |
val register_lfp_rec_extension = Data.put o SOME; |
154 |
||
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155 |
fun nested_simps ctxt = |
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(case Data.get (Proof_Context.theory_of ctxt) of |
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|
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SOME {nested_simps, ...} => nested_simps |
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|
158 |
| NONE => []); |
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|
159 |
|
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fun is_new_datatype ctxt = |
161 |
(case Data.get (Proof_Context.theory_of ctxt) of |
|
162 |
SOME {is_new_datatype, ...} => is_new_datatype ctxt |
|
58389 | 163 |
| NONE => K true); |
164 |
||
165 |
fun default_basic_lfp_sugars_of _ [Type (arg_T_name, _)] _ _ ctxt = |
|
166 |
let |
|
167 |
val ctr_sugar as {T, ctrs, casex, case_thms, ...} = |
|
168 |
(case ctr_sugar_of ctxt arg_T_name of |
|
169 |
SOME ctr_sugar => ctr_sugar |
|
170 |
| NONE => error ("Unsupported type " ^ quote arg_T_name ^ " at this stage")); |
|
171 |
||
172 |
val C = body_type (fastype_of casex); |
|
173 |
val fun_arg_Tsss = map (map single o binder_types o fastype_of) ctrs; |
|
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|
58389 | 175 |
val basic_lfp_sugar = |
176 |
{T = T, fp_res_index = 0, C = C, fun_arg_Tsss = fun_arg_Tsss, ctr_sugar = ctr_sugar, |
|
177 |
recx = casex, rec_thms = case_thms}; |
|
178 |
in |
|
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|
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([], [0], [basic_lfp_sugar], [], [], [], TrueI (*dummy*), [], false, ctxt) |
58389 | 180 |
end |
64674
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|
181 |
| default_basic_lfp_sugars_of _ [T] _ _ ctxt = |
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|
182 |
error ("Cannot recurse through type " ^ quote (Syntax.string_of_typ ctxt T)) |
58389 | 183 |
| default_basic_lfp_sugars_of _ _ _ _ _ = error "Unsupported mutual recursion at this stage"; |
184 |
||
185 |
fun basic_lfp_sugars_of bs arg_Ts callers callssss lthy = |
|
55571 | 186 |
(case Data.get (Proof_Context.theory_of lthy) of |
58389 | 187 |
SOME {basic_lfp_sugars_of, ...} => basic_lfp_sugars_of |
188 |
| NONE => default_basic_lfp_sugars_of) bs arg_Ts callers callssss lthy; |
|
55571 | 189 |
|
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|
190 |
fun rewrite_nested_rec_call ctxt = |
55571 | 191 |
(case Data.get (Proof_Context.theory_of ctxt) of |
58389 | 192 |
SOME {rewrite_nested_rec_call = SOME f, ...} => f ctxt |
193 |
| _ => error "Unsupported nested recursion"); |
|
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|
194 |
|
59281 | 195 |
structure LFP_Rec_Sugar_Plugin = Plugin(type T = fp_rec_sugar); |
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|
196 |
|
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fun lfp_rec_sugar_interpretation name f = |
198 |
LFP_Rec_Sugar_Plugin.interpretation name (fn fp_rec_sugar => fn lthy => |
|
199 |
f (transfer_fp_rec_sugar (Proof_Context.theory_of lthy) fp_rec_sugar) lthy); |
|
59275
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changeset
|
200 |
|
59281 | 201 |
val interpret_lfp_rec_sugar = LFP_Rec_Sugar_Plugin.data; |
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diff
changeset
|
202 |
|
55772
367ec44763fd
correct most general type for mutual recursion when several identical types are involved
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diff
changeset
|
203 |
fun rec_specs_of bs arg_Ts res_Ts callers callssss0 lthy0 = |
55538 | 204 |
let |
205 |
val thy = Proof_Context.theory_of lthy0; |
|
54246
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changeset
|
206 |
|
57399 | 207 |
val (missing_arg_Ts, perm0_kks, basic_lfp_sugars, fp_nesting_map_ident0s, fp_nesting_map_comps, |
62326
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|
208 |
fp_nesting_pred_maps, common_induct, induct_attrs, n2m, lthy) = |
58389 | 209 |
basic_lfp_sugars_of bs arg_Ts callers callssss0 lthy0; |
54246
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changeset
|
210 |
|
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renamed "pairself" to "apply2", in accordance to @{apply 2};
wenzelm
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changeset
|
211 |
val perm_basic_lfp_sugars = sort (int_ord o apply2 #fp_res_index) basic_lfp_sugars; |
55538 | 212 |
|
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changeset
|
213 |
val indices = map #fp_res_index basic_lfp_sugars; |
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changeset
|
214 |
val perm_indices = map #fp_res_index perm_basic_lfp_sugars; |
55538 | 215 |
|
55539
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diff
changeset
|
216 |
val perm_ctrss = map (#ctrs o #ctr_sugar) perm_basic_lfp_sugars; |
54246
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changeset
|
217 |
|
8fdb4dc08ed1
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changeset
|
218 |
val nn0 = length arg_Ts; |
55539
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changeset
|
219 |
val nn = length perm_ctrss; |
54246
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|
220 |
val kks = 0 upto nn - 1; |
55539
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diff
changeset
|
221 |
|
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diff
changeset
|
222 |
val perm_ctr_offsets = map (fn kk => Integer.sum (map length (take kk perm_ctrss))) kks; |
54246
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split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
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parents:
diff
changeset
|
223 |
|
58187
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fixed infinite loops in 'register' functions + more uniform API
blanchet
parents:
58112
diff
changeset
|
224 |
val perm_fpTs = map #T perm_basic_lfp_sugars; |
55574
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rewrote a small portion of code to avoid dependency on low-level constant
blanchet
parents:
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diff
changeset
|
225 |
val perm_Cs = map #C perm_basic_lfp_sugars; |
4a940ebceef8
rewrote a small portion of code to avoid dependency on low-level constant
blanchet
parents:
55573
diff
changeset
|
226 |
val perm_fun_arg_Tssss = map #fun_arg_Tsss perm_basic_lfp_sugars; |
54246
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blanchet
parents:
diff
changeset
|
227 |
|
55480
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blanchet
parents:
55464
diff
changeset
|
228 |
fun unpermute0 perm0_xs = permute_like_unique (op =) perm0_kks kks perm0_xs; |
59cc4a8bc28a
allow different functions to recurse on the same type, like in the old package
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55464
diff
changeset
|
229 |
fun unpermute perm_xs = permute_like_unique (op =) perm_indices indices perm_xs; |
54246
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split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
230 |
|
56857
aa2de99be748
note correct induction schemes in 'primrec' (for N2M)
blanchet
parents:
56651
diff
changeset
|
231 |
val inducts = unpermute0 (conj_dests nn common_induct); |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
232 |
|
58187
d2ddd401d74d
fixed infinite loops in 'register' functions + more uniform API
blanchet
parents:
58112
diff
changeset
|
233 |
val fpTs = unpermute perm_fpTs; |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
234 |
val Cs = unpermute perm_Cs; |
55539
0819931d652d
simplified data structure by reducing the incidence of clumsy indices
blanchet
parents:
55538
diff
changeset
|
235 |
val ctr_offsets = unpermute perm_ctr_offsets; |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
236 |
|
58187
d2ddd401d74d
fixed infinite loops in 'register' functions + more uniform API
blanchet
parents:
58112
diff
changeset
|
237 |
val As_rho = tvar_subst thy (take nn0 fpTs) arg_Ts; |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
238 |
val Cs_rho = map (fst o dest_TVar) Cs ~~ pad_list HOLogic.unitT nn res_Ts; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
239 |
|
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
240 |
val substA = Term.subst_TVars As_rho; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
241 |
val substAT = Term.typ_subst_TVars As_rho; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
242 |
val substCT = Term.typ_subst_TVars Cs_rho; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
243 |
val substACT = substAT o substCT; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
244 |
|
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
245 |
val perm_Cs' = map substCT perm_Cs; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
246 |
|
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
247 |
fun call_of [i] [T] = (if exists_subtype_in Cs T then Nested_Rec else No_Rec) (i, substACT T) |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
248 |
| call_of [i, i'] [T, T'] = Mutual_Rec ((i, substACT T), (i', substACT T')); |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
249 |
|
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
250 |
fun mk_ctr_spec ctr offset fun_arg_Tss rec_thm = |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
251 |
let |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
252 |
val (fun_arg_hss, _) = indexedd fun_arg_Tss 0; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
253 |
val fun_arg_hs = flat_rec_arg_args fun_arg_hss; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
254 |
val fun_arg_iss = map (map (find_index_eq fun_arg_hs)) fun_arg_hss; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
255 |
in |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
256 |
{ctr = substA ctr, offset = offset, calls = map2 call_of fun_arg_iss fun_arg_Tss, |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
257 |
rec_thm = rec_thm} |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
258 |
end; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
259 |
|
55539
0819931d652d
simplified data structure by reducing the incidence of clumsy indices
blanchet
parents:
55538
diff
changeset
|
260 |
fun mk_ctr_specs fp_res_index k ctrs rec_thms = |
58634
9f10d82e8188
added parameterized ML antiquotations @{map N}, @{fold N}, @{fold_map N}, @{split_list N};
wenzelm
parents:
58389
diff
changeset
|
261 |
@{map 4} mk_ctr_spec ctrs (k upto k + length ctrs - 1) (nth perm_fun_arg_Tssss fp_res_index) |
55539
0819931d652d
simplified data structure by reducing the incidence of clumsy indices
blanchet
parents:
55538
diff
changeset
|
262 |
rec_thms; |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
263 |
|
55539
0819931d652d
simplified data structure by reducing the incidence of clumsy indices
blanchet
parents:
55538
diff
changeset
|
264 |
fun mk_spec ctr_offset |
55570 | 265 |
({T, fp_res_index, ctr_sugar = {ctrs, ...}, recx, rec_thms, ...} : basic_lfp_sugar) = |
58211
c1f3fa32d322
extended 'datatype_compat' to generate the expected, old-style recursor in the presence of recursion through functions
blanchet
parents:
58187
diff
changeset
|
266 |
{recx = mk_co_rec thy Least_FP perm_Cs' (substAT T) recx, |
57399 | 267 |
fp_nesting_map_ident0s = fp_nesting_map_ident0s, fp_nesting_map_comps = fp_nesting_map_comps, |
62326
3cf7a067599c
allow predicator instead of map function in 'primrec'
blanchet
parents:
62323
diff
changeset
|
268 |
fp_nesting_pred_maps = fp_nesting_pred_maps, |
55570 | 269 |
ctr_specs = mk_ctr_specs fp_res_index ctr_offset ctrs rec_thms}; |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
270 |
in |
58283
71d74e641538
preserve case names in '(co)induct' theorems generated by prim(co)rec'
blanchet
parents:
58281
diff
changeset
|
271 |
((n2m, map2 mk_spec ctr_offsets basic_lfp_sugars, missing_arg_Ts, common_induct, inducts, |
59275
77cd4992edcd
Add plugin to generate transfer theorem for primrec and primcorec
desharna
parents:
59058
diff
changeset
|
272 |
induct_attrs, map #T basic_lfp_sugars), lthy) |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
273 |
end; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
274 |
|
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
275 |
val undef_const = Const (@{const_name undefined}, dummyT); |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
276 |
|
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
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parents:
diff
changeset
|
277 |
type eqn_data = { |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
278 |
fun_name: string, |
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|
279 |
rec_type: typ, |
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diff
changeset
|
280 |
ctr: term, |
8fdb4dc08ed1
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parents:
diff
changeset
|
281 |
ctr_args: term list, |
8fdb4dc08ed1
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parents:
diff
changeset
|
282 |
left_args: term list, |
8fdb4dc08ed1
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parents:
diff
changeset
|
283 |
right_args: term list, |
8fdb4dc08ed1
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parents:
diff
changeset
|
284 |
res_type: typ, |
8fdb4dc08ed1
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blanchet
parents:
diff
changeset
|
285 |
rhs_term: term, |
8fdb4dc08ed1
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parents:
diff
changeset
|
286 |
user_eqn: term |
8fdb4dc08ed1
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parents:
diff
changeset
|
287 |
}; |
8fdb4dc08ed1
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parents:
diff
changeset
|
288 |
|
59595 | 289 |
fun dissect_eqn ctxt fun_names eqn0 = |
54246
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parents:
diff
changeset
|
290 |
let |
59595 | 291 |
val eqn = drop_all eqn0 |> HOLogic.dest_Trueprop |
292 |
handle TERM _ => malformed_eqn_lhs_rhs ctxt eqn0; |
|
54246
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blanchet
parents:
diff
changeset
|
293 |
val (lhs, rhs) = HOLogic.dest_eq eqn |
59595 | 294 |
handle TERM _ => malformed_eqn_lhs_rhs ctxt eqn; |
54246
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parents:
diff
changeset
|
295 |
val (fun_name, args) = strip_comb lhs |
59595 | 296 |
|>> (fn x => if is_Free x then fst (dest_Free x) else malformed_eqn_head ctxt eqn); |
54246
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parents:
diff
changeset
|
297 |
val (left_args, rest) = take_prefix is_Free args; |
8fdb4dc08ed1
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parents:
diff
changeset
|
298 |
val (nonfrees, right_args) = take_suffix is_Free rest; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
299 |
val num_nonfrees = length nonfrees; |
59595 | 300 |
val _ = num_nonfrees = 1 orelse |
301 |
error_at ctxt [eqn] (if num_nonfrees = 0 then "Constructor pattern missing in left-hand side" |
|
302 |
else "More than one non-variable argument in left-hand side"); |
|
303 |
val _ = member (op =) fun_names fun_name orelse raise malformed_eqn_head ctxt eqn; |
|
54246
8fdb4dc08ed1
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parents:
diff
changeset
|
304 |
|
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
305 |
val (ctr, ctr_args) = strip_comb (the_single nonfrees); |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
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parents:
diff
changeset
|
306 |
val _ = try (num_binder_types o fastype_of) ctr = SOME (length ctr_args) orelse |
59595 | 307 |
error_at ctxt [eqn] "Partially applied constructor in pattern"; |
308 |
||
309 |
val dups = duplicates (op =) (left_args @ ctr_args @ right_args) |
|
310 |
val _ = null dups orelse |
|
311 |
error_at ctxt [eqn] ("Duplicate variable \"" ^ Syntax.string_of_term ctxt (hd dups) ^ |
|
312 |
"\" in left-hand side"); |
|
54246
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parents:
diff
changeset
|
313 |
val _ = forall is_Free ctr_args orelse |
59595 | 314 |
error_at ctxt [eqn] "Nonprimitive pattern in left-hand side"; |
54246
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blanchet
parents:
diff
changeset
|
315 |
val _ = |
58302 | 316 |
let |
59595 | 317 |
val bads = |
58302 | 318 |
fold_aterms (fn x as Free (v, _) => |
319 |
if (not (member (op =) (left_args @ ctr_args @ right_args) x) andalso |
|
320 |
not (member (op =) fun_names v) andalso not (Variable.is_fixed ctxt v)) then |
|
321 |
cons x |
|
322 |
else |
|
323 |
I |
|
324 |
| _ => I) rhs []; |
|
54246
8fdb4dc08ed1
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blanchet
parents:
diff
changeset
|
325 |
in |
59595 | 326 |
null bads orelse |
327 |
error_at ctxt [eqn] ("Extra variable " ^ quote (Syntax.string_of_term ctxt (hd bads))) |
|
54246
8fdb4dc08ed1
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parents:
diff
changeset
|
328 |
end; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
329 |
in |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
330 |
{fun_name = fun_name, |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
331 |
rec_type = body_type (type_of ctr), |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
332 |
ctr = ctr, |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
333 |
ctr_args = ctr_args, |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
334 |
left_args = left_args, |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
335 |
right_args = right_args, |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
336 |
res_type = map fastype_of (left_args @ right_args) ---> fastype_of rhs, |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
337 |
rhs_term = rhs, |
59595 | 338 |
user_eqn = eqn0} |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
339 |
end; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
340 |
|
58302 | 341 |
fun subst_rec_calls ctxt get_ctr_pos has_call ctr_args mutual_calls nested_calls = |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
342 |
let |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
343 |
fun try_nested_rec bound_Ts y t = |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
344 |
AList.lookup (op =) nested_calls y |
58302 | 345 |
|> Option.map (fn y' => rewrite_nested_rec_call ctxt has_call get_ctr_pos bound_Ts y y' t); |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
346 |
|
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
347 |
fun subst bound_Ts (t as g' $ y) = |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
348 |
let |
58303
a0fe6d8c8ba2
fixed situation in 'primrec' when recursive calls are apparently nested, e.g. 'f (f x y) y', with the recursion in 'y'
blanchet
parents:
58302
diff
changeset
|
349 |
fun subst_comb (h $ z) = subst bound_Ts h $ subst bound_Ts z |
a0fe6d8c8ba2
fixed situation in 'primrec' when recursive calls are apparently nested, e.g. 'f (f x y) y', with the recursion in 'y'
blanchet
parents:
58302
diff
changeset
|
350 |
| subst_comb t = t; |
58301
de95aeedf49e
fixed situation in 'primrec' whereby the original value of a constructor argument of nested type was not translated correctly to a 'map fst'
blanchet
parents:
58283
diff
changeset
|
351 |
|
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
352 |
val y_head = head_of y; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
353 |
in |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
354 |
if not (member (op =) ctr_args y_head) then |
58303
a0fe6d8c8ba2
fixed situation in 'primrec' when recursive calls are apparently nested, e.g. 'f (f x y) y', with the recursion in 'y'
blanchet
parents:
58302
diff
changeset
|
355 |
subst_comb t |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
356 |
else |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
357 |
(case try_nested_rec bound_Ts y_head t of |
58303
a0fe6d8c8ba2
fixed situation in 'primrec' when recursive calls are apparently nested, e.g. 'f (f x y) y', with the recursion in 'y'
blanchet
parents:
58302
diff
changeset
|
358 |
SOME t' => subst_comb t' |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
359 |
| NONE => |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
360 |
let val (g, g_args) = strip_comb g' in |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
361 |
(case try (get_ctr_pos o fst o dest_Free) g of |
58303
a0fe6d8c8ba2
fixed situation in 'primrec' when recursive calls are apparently nested, e.g. 'f (f x y) y', with the recursion in 'y'
blanchet
parents:
58302
diff
changeset
|
362 |
SOME ~1 => subst_comb t |
57549 | 363 |
| SOME ctr_pos => |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
364 |
(length g_args >= ctr_pos orelse |
59595 | 365 |
error ("Too few arguments in recursive call " ^ |
366 |
quote (Syntax.string_of_term ctxt t)); |
|
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
367 |
(case AList.lookup (op =) mutual_calls y of |
58303
a0fe6d8c8ba2
fixed situation in 'primrec' when recursive calls are apparently nested, e.g. 'f (f x y) y', with the recursion in 'y'
blanchet
parents:
58302
diff
changeset
|
368 |
SOME y' => list_comb (y', map (subst bound_Ts) g_args) |
a0fe6d8c8ba2
fixed situation in 'primrec' when recursive calls are apparently nested, e.g. 'f (f x y) y', with the recursion in 'y'
blanchet
parents:
58302
diff
changeset
|
369 |
| NONE => subst_comb t)) |
a0fe6d8c8ba2
fixed situation in 'primrec' when recursive calls are apparently nested, e.g. 'f (f x y) y', with the recursion in 'y'
blanchet
parents:
58302
diff
changeset
|
370 |
| NONE => subst_comb t) |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
371 |
end) |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
372 |
end |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
373 |
| subst bound_Ts (Abs (v, T, b)) = Abs (v, T, subst (T :: bound_Ts) b) |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
374 |
| subst _ t = t |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
375 |
|
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
376 |
fun subst' t = |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
377 |
if has_call t then |
59595 | 378 |
error ("Recursive call not directly applied to constructor argument in " ^ |
379 |
quote (Syntax.string_of_term ctxt t)) |
|
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
380 |
else |
58304 | 381 |
try_nested_rec [] (head_of t) t |> the_default t; |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
382 |
in |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
383 |
subst' o subst [] |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
384 |
end; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
385 |
|
58302 | 386 |
fun build_rec_arg ctxt (funs_data : eqn_data list list) has_call (ctr_spec : rec_ctr_spec) |
54926
28b621fce2f9
more SML-ish (less Haskell-ish) naming convention
blanchet
parents:
54851
diff
changeset
|
387 |
(eqn_data_opt : eqn_data option) = |
28b621fce2f9
more SML-ish (less Haskell-ish) naming convention
blanchet
parents:
54851
diff
changeset
|
388 |
(case eqn_data_opt of |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
389 |
NONE => undef_const |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
390 |
| SOME {ctr_args, left_args, right_args, rhs_term = t, ...} => |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
391 |
let |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
392 |
val calls = #calls ctr_spec; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
393 |
val n_args = fold (Integer.add o (fn Mutual_Rec _ => 2 | _ => 1)) calls 0; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
394 |
|
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
395 |
val no_calls' = tag_list 0 calls |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
396 |
|> map_filter (try (apsnd (fn No_Rec p => p | Mutual_Rec (p, _) => p))); |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
397 |
val mutual_calls' = tag_list 0 calls |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
398 |
|> map_filter (try (apsnd (fn Mutual_Rec (_, p) => p))); |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
399 |
val nested_calls' = tag_list 0 calls |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
400 |
|> map_filter (try (apsnd (fn Nested_Rec p => p))); |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
401 |
|
54851
48a24d371ebb
prevent ambiguity when mutual recursion maps a datatype to itself, which yielded wrong definitions in some cases (e.g. nat)
panny
parents:
54272
diff
changeset
|
402 |
fun ensure_unique frees t = |
48a24d371ebb
prevent ambiguity when mutual recursion maps a datatype to itself, which yielded wrong definitions in some cases (e.g. nat)
panny
parents:
54272
diff
changeset
|
403 |
if member (op =) frees t then Free (the_single (Term.variant_frees t [dest_Free t])) else t; |
48a24d371ebb
prevent ambiguity when mutual recursion maps a datatype to itself, which yielded wrong definitions in some cases (e.g. nat)
panny
parents:
54272
diff
changeset
|
404 |
|
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
405 |
val args = replicate n_args ("", dummyT) |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
406 |
|> Term.rename_wrt_term t |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
407 |
|> map Free |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
408 |
|> fold (fn (ctr_arg_idx, (arg_idx, _)) => |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
409 |
nth_map arg_idx (K (nth ctr_args ctr_arg_idx))) |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
410 |
no_calls' |
54851
48a24d371ebb
prevent ambiguity when mutual recursion maps a datatype to itself, which yielded wrong definitions in some cases (e.g. nat)
panny
parents:
54272
diff
changeset
|
411 |
|> fold (fn (ctr_arg_idx, (arg_idx, T)) => fn xs => |
56651 | 412 |
nth_map arg_idx (K (ensure_unique xs |
413 |
(retype_const_or_free T (nth ctr_args ctr_arg_idx)))) xs) |
|
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
414 |
mutual_calls' |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
415 |
|> fold (fn (ctr_arg_idx, (arg_idx, T)) => |
56651 | 416 |
nth_map arg_idx (K (retype_const_or_free T (nth ctr_args ctr_arg_idx)))) |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
417 |
nested_calls'; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
418 |
|
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
419 |
val fun_name_ctr_pos_list = |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
420 |
map (fn (x :: _) => (#fun_name x, length (#left_args x))) funs_data; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
421 |
val get_ctr_pos = try (the o AList.lookup (op =) fun_name_ctr_pos_list) #> the_default ~1; |
57527 | 422 |
val mutual_calls = map (map_prod (nth ctr_args) (nth args o fst)) mutual_calls'; |
423 |
val nested_calls = map (map_prod (nth ctr_args) (nth args o fst)) nested_calls'; |
|
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
424 |
in |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
425 |
t |
58302 | 426 |
|> subst_rec_calls ctxt get_ctr_pos has_call ctr_args mutual_calls nested_calls |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
427 |
|> fold_rev lambda (args @ left_args @ right_args) |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
428 |
end); |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
429 |
|
59275
77cd4992edcd
Add plugin to generate transfer theorem for primrec and primcorec
desharna
parents:
59058
diff
changeset
|
430 |
fun build_defs ctxt nonexhaustives bs mxs (funs_data : eqn_data list list) |
56121 | 431 |
(rec_specs : rec_spec list) has_call = |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
432 |
let |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
433 |
val n_funs = length funs_data; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
434 |
|
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
435 |
val ctr_spec_eqn_data_list' = |
59275
77cd4992edcd
Add plugin to generate transfer theorem for primrec and primcorec
desharna
parents:
59058
diff
changeset
|
436 |
maps (fn ((xs, ys), z) => |
77cd4992edcd
Add plugin to generate transfer theorem for primrec and primcorec
desharna
parents:
59058
diff
changeset
|
437 |
let |
59595 | 438 |
val zs = replicate (length xs) z; |
439 |
val (b, c) = finds (fn ((x, _), y) => #ctr x = #ctr y) (xs ~~ zs) ys; |
|
440 |
val _ = null c orelse error_at ctxt (map #rhs_term c) "Excess equation(s)"; |
|
59275
77cd4992edcd
Add plugin to generate transfer theorem for primrec and primcorec
desharna
parents:
59058
diff
changeset
|
441 |
in b end) (map #ctr_specs (take n_funs rec_specs) ~~ funs_data ~~ nonexhaustives); |
77cd4992edcd
Add plugin to generate transfer theorem for primrec and primcorec
desharna
parents:
59058
diff
changeset
|
442 |
|
77cd4992edcd
Add plugin to generate transfer theorem for primrec and primcorec
desharna
parents:
59058
diff
changeset
|
443 |
val (_ : unit list) = ctr_spec_eqn_data_list' |> map (fn (({ctr, ...}, nonexhaustive), x) => |
59595 | 444 |
if length x > 1 then |
445 |
error_at ctxt (map #user_eqn x) "Multiple equations for constructor" |
|
446 |
else if length x = 1 orelse nonexhaustive orelse not (Context_Position.is_visible ctxt) then |
|
447 |
() |
|
448 |
else |
|
449 |
warning ("No equation for constructor " ^ Syntax.string_of_term ctxt ctr)); |
|
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
450 |
|
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
451 |
val ctr_spec_eqn_data_list = |
59283 | 452 |
map (apfst fst) ctr_spec_eqn_data_list' @ |
59275
77cd4992edcd
Add plugin to generate transfer theorem for primrec and primcorec
desharna
parents:
59058
diff
changeset
|
453 |
(drop n_funs rec_specs |> maps #ctr_specs |> map (rpair [])); |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
454 |
|
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
455 |
val recs = take n_funs rec_specs |> map #recx; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
456 |
val rec_args = ctr_spec_eqn_data_list |
59058
a78612c67ec0
renamed "pairself" to "apply2", in accordance to @{apply 2};
wenzelm
parents:
58996
diff
changeset
|
457 |
|> sort (op < o apply2 (#offset o fst) |> make_ord) |
58302 | 458 |
|> map (uncurry (build_rec_arg ctxt funs_data has_call) o apsnd (try the_single)); |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
459 |
val ctr_poss = map (fn x => |
59058
a78612c67ec0
renamed "pairself" to "apply2", in accordance to @{apply 2};
wenzelm
parents:
58996
diff
changeset
|
460 |
if length (distinct (op = o apply2 (length o #left_args)) x) <> 1 then |
59595 | 461 |
error ("Inconstant constructor pattern position for function " ^ quote (#fun_name (hd x))) |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
462 |
else |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
463 |
hd x |> #left_args |> length) funs_data; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
464 |
in |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
465 |
(recs, ctr_poss) |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
466 |
|-> map2 (fn recx => fn ctr_pos => list_comb (recx, rec_args) |> permute_args ctr_pos) |
58302 | 467 |
|> Syntax.check_terms ctxt |
61760 | 468 |
|> @{map 3} (fn b => fn mx => fn t => |
469 |
((b, mx), ((Binding.concealed (Thm.def_binding b), []), t))) |
|
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
470 |
bs mxs |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
471 |
end; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
472 |
|
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
473 |
fun find_rec_calls has_call ({ctr, ctr_args, rhs_term, ...} : eqn_data) = |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
474 |
let |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
475 |
fun find bound_Ts (Abs (_, T, b)) ctr_arg = find (T :: bound_Ts) b ctr_arg |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
476 |
| find bound_Ts (t as _ $ _) ctr_arg = |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
477 |
let |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
478 |
val typof = curry fastype_of1 bound_Ts; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
479 |
val (f', args') = strip_comb t; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
480 |
val n = find_index (equal ctr_arg o head_of) args'; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
481 |
in |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
482 |
if n < 0 then |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
483 |
find bound_Ts f' ctr_arg @ maps (fn x => find bound_Ts x ctr_arg) args' |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
484 |
else |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
485 |
let |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
486 |
val (f, args as arg :: _) = chop n args' |>> curry list_comb f' |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
487 |
val (arg_head, arg_args) = Term.strip_comb arg; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
488 |
in |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
489 |
if has_call f then |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
490 |
mk_partial_compN (length arg_args) (typof arg_head) f :: |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
491 |
maps (fn x => find bound_Ts x ctr_arg) args |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
492 |
else |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
493 |
find bound_Ts f ctr_arg @ maps (fn x => find bound_Ts x ctr_arg) args |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
494 |
end |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
495 |
end |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
496 |
| find _ _ _ = []; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
497 |
in |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
498 |
map (find [] rhs_term) ctr_args |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
499 |
|> (fn [] => NONE | callss => SOME (ctr, callss)) |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
500 |
end; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
501 |
|
62326
3cf7a067599c
allow predicator instead of map function in 'primrec'
blanchet
parents:
62323
diff
changeset
|
502 |
fun mk_primrec_tac ctxt num_extra_args fp_nesting_map_ident0s fp_nesting_map_comps |
3cf7a067599c
allow predicator instead of map function in 'primrec'
blanchet
parents:
62323
diff
changeset
|
503 |
fp_nesting_pred_maps fun_defs recx = |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
504 |
unfold_thms_tac ctxt fun_defs THEN |
60728 | 505 |
HEADGOAL (rtac ctxt (funpow num_extra_args (fn thm => thm RS fun_cong) recx RS trans)) THEN |
62326
3cf7a067599c
allow predicator instead of map function in 'primrec'
blanchet
parents:
62323
diff
changeset
|
506 |
unfold_thms_tac ctxt (nested_simps ctxt @ fp_nesting_map_ident0s @ fp_nesting_map_comps @ |
3cf7a067599c
allow predicator instead of map function in 'primrec'
blanchet
parents:
62323
diff
changeset
|
507 |
fp_nesting_pred_maps) THEN |
60728 | 508 |
HEADGOAL (rtac ctxt refl); |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
509 |
|
59281 | 510 |
fun prepare_primrec plugins nonexhaustives transfers fixes specs lthy0 = |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
511 |
let |
55535
10194808430d
name derivations in 'primrec' for code extraction from proof terms
blanchet
parents:
55530
diff
changeset
|
512 |
val thy = Proof_Context.theory_of lthy0; |
54272
9d623cada37f
avoid subtle failure in the presence of top sort
blanchet
parents:
54256
diff
changeset
|
513 |
|
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
514 |
val (bs, mxs) = map_split (apfst fst) fixes; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
515 |
val fun_names = map Binding.name_of bs; |
62497
5b5b704f4811
respect qualification when noting theorems in prim(co)rec
traytel
parents:
62326
diff
changeset
|
516 |
val qualifys = map (fold_rev (uncurry Binding.qualify o swap) o Binding.path_of) bs; |
55535
10194808430d
name derivations in 'primrec' for code extraction from proof terms
blanchet
parents:
55530
diff
changeset
|
517 |
val eqns_data = map (dissect_eqn lthy0 fun_names) specs; |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
518 |
val funs_data = eqns_data |
59058
a78612c67ec0
renamed "pairself" to "apply2", in accordance to @{apply 2};
wenzelm
parents:
58996
diff
changeset
|
519 |
|> partition_eq (op = o apply2 #fun_name) |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
520 |
|> finds (fn (x, y) => x = #fun_name (hd y)) fun_names |> fst |
55527 | 521 |
|> map (fn (x, y) => the_single y |
59595 | 522 |
handle List.Empty => error ("Missing equations for function " ^ quote x)); |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
523 |
|
55772
367ec44763fd
correct most general type for mutual recursion when several identical types are involved
blanchet
parents:
55576
diff
changeset
|
524 |
val frees = map (fst #>> Binding.name_of #> Free) fixes; |
367ec44763fd
correct most general type for mutual recursion when several identical types are involved
blanchet
parents:
55576
diff
changeset
|
525 |
val has_call = exists_subterm (member (op =) frees); |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
526 |
val arg_Ts = map (#rec_type o hd) funs_data; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
527 |
val res_Ts = map (#res_type o hd) funs_data; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
528 |
val callssss = funs_data |
59058
a78612c67ec0
renamed "pairself" to "apply2", in accordance to @{apply 2};
wenzelm
parents:
58996
diff
changeset
|
529 |
|> map (partition_eq (op = o apply2 #ctr)) |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
530 |
|> map (maps (map_filter (find_rec_calls has_call))); |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
531 |
|
55528
c367f4f3e5d4
have 'primrec_new' fall back on old 'primrec' when given old-style datatypes
blanchet
parents:
55527
diff
changeset
|
532 |
fun is_only_old_datatype (Type (s, _)) = |
58112
8081087096ad
renamed modules defining old datatypes, as a step towards having 'datatype_new' take 'datatype's place
blanchet
parents:
57633
diff
changeset
|
533 |
is_some (Old_Datatype_Data.get_info thy s) andalso not (is_new_datatype lthy0 s) |
55528
c367f4f3e5d4
have 'primrec_new' fall back on old 'primrec' when given old-style datatypes
blanchet
parents:
55527
diff
changeset
|
534 |
| is_only_old_datatype _ = false; |
c367f4f3e5d4
have 'primrec_new' fall back on old 'primrec' when given old-style datatypes
blanchet
parents:
55527
diff
changeset
|
535 |
|
c367f4f3e5d4
have 'primrec_new' fall back on old 'primrec' when given old-style datatypes
blanchet
parents:
55527
diff
changeset
|
536 |
val _ = if exists is_only_old_datatype arg_Ts then raise OLD_PRIMREC () else (); |
56254 | 537 |
val _ = (case filter_out (fn (_, T) => Sign.of_sort thy (T, @{sort type})) (bs ~~ res_Ts) of |
54272
9d623cada37f
avoid subtle failure in the presence of top sort
blanchet
parents:
54256
diff
changeset
|
538 |
[] => () |
59595 | 539 |
| (b, _) :: _ => error ("Type of " ^ Binding.print b ^ " contains top sort")); |
54272
9d623cada37f
avoid subtle failure in the presence of top sort
blanchet
parents:
54256
diff
changeset
|
540 |
|
59275
77cd4992edcd
Add plugin to generate transfer theorem for primrec and primcorec
desharna
parents:
59058
diff
changeset
|
541 |
val ((n2m, rec_specs, _, common_induct, inducts, induct_attrs, Ts), lthy) = |
55772
367ec44763fd
correct most general type for mutual recursion when several identical types are involved
blanchet
parents:
55576
diff
changeset
|
542 |
rec_specs_of bs arg_Ts res_Ts frees callssss lthy0; |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
543 |
|
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
544 |
val actual_nn = length funs_data; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
545 |
|
55539
0819931d652d
simplified data structure by reducing the incidence of clumsy indices
blanchet
parents:
55538
diff
changeset
|
546 |
val ctrs = maps (map #ctr o #ctr_specs) rec_specs; |
0819931d652d
simplified data structure by reducing the incidence of clumsy indices
blanchet
parents:
55538
diff
changeset
|
547 |
val _ = |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
548 |
map (fn {ctr, user_eqn, ...} => member (op =) ctrs ctr orelse |
59595 | 549 |
error_at lthy0 [user_eqn] ("Argument " ^ quote (Syntax.string_of_term lthy ctr) ^ |
550 |
" is not a constructor in left-hand side")) eqns_data; |
|
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
551 |
|
59275
77cd4992edcd
Add plugin to generate transfer theorem for primrec and primcorec
desharna
parents:
59058
diff
changeset
|
552 |
val defs = build_defs lthy nonexhaustives bs mxs funs_data rec_specs has_call; |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
553 |
|
62326
3cf7a067599c
allow predicator instead of map function in 'primrec'
blanchet
parents:
62323
diff
changeset
|
554 |
fun prove def_thms ({ctr_specs, fp_nesting_map_ident0s, fp_nesting_map_comps, |
3cf7a067599c
allow predicator instead of map function in 'primrec'
blanchet
parents:
62323
diff
changeset
|
555 |
fp_nesting_pred_maps, ...} : rec_spec) (fun_data : eqn_data list) lthy' = |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
556 |
let |
55535
10194808430d
name derivations in 'primrec' for code extraction from proof terms
blanchet
parents:
55530
diff
changeset
|
557 |
val js = |
59058
a78612c67ec0
renamed "pairself" to "apply2", in accordance to @{apply 2};
wenzelm
parents:
58996
diff
changeset
|
558 |
find_indices (op = o apply2 (fn {fun_name, ctr, ...} => (fun_name, ctr))) |
55535
10194808430d
name derivations in 'primrec' for code extraction from proof terms
blanchet
parents:
55530
diff
changeset
|
559 |
fun_data eqns_data; |
10194808430d
name derivations in 'primrec' for code extraction from proof terms
blanchet
parents:
55530
diff
changeset
|
560 |
|
60004 | 561 |
val simps = finds (fn (x, y) => #ctr x = #ctr y) fun_data ctr_specs |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
562 |
|> fst |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
563 |
|> map_filter (try (fn (x, [y]) => |
59283 | 564 |
(#user_eqn x, length (#left_args x) + length (#right_args x), #rec_thm y))) |
565 |
|> map (fn (user_eqn, num_extra_args, rec_thm) => |
|
61271 | 566 |
Goal.prove_sorry lthy' [] [] user_eqn |
567 |
(fn {context = ctxt, prems = _} => |
|
568 |
mk_primrec_tac ctxt num_extra_args fp_nesting_map_ident0s fp_nesting_map_comps |
|
62326
3cf7a067599c
allow predicator instead of map function in 'primrec'
blanchet
parents:
62323
diff
changeset
|
569 |
fp_nesting_pred_maps def_thms rec_thm) |
59283 | 570 |
|> Thm.close_derivation); |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
571 |
in |
60004 | 572 |
((js, simps), lthy') |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
573 |
end; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
574 |
|
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
575 |
val notes = |
55482
61ffc2339a8c
removed assumption in 'primrec_new' that a given constructor can only occur once
blanchet
parents:
55480
diff
changeset
|
576 |
(if n2m then |
62497
5b5b704f4811
respect qualification when noting theorems in prim(co)rec
traytel
parents:
62326
diff
changeset
|
577 |
@{map 3} (fn name => fn qualify => fn thm => (name, qualify, inductN, [thm], induct_attrs)) |
5b5b704f4811
respect qualification when noting theorems in prim(co)rec
traytel
parents:
62326
diff
changeset
|
578 |
fun_names qualifys (take actual_nn inducts) |
55482
61ffc2339a8c
removed assumption in 'primrec_new' that a given constructor can only occur once
blanchet
parents:
55480
diff
changeset
|
579 |
else |
61ffc2339a8c
removed assumption in 'primrec_new' that a given constructor can only occur once
blanchet
parents:
55480
diff
changeset
|
580 |
[]) |
62497
5b5b704f4811
respect qualification when noting theorems in prim(co)rec
traytel
parents:
62326
diff
changeset
|
581 |
|> map (fn (prefix, qualify, thmN, thms, attrs) => |
5b5b704f4811
respect qualification when noting theorems in prim(co)rec
traytel
parents:
62326
diff
changeset
|
582 |
((qualify (Binding.qualify true prefix (Binding.name thmN)), attrs), [(thms, [])])); |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
583 |
|
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
584 |
val common_name = mk_common_name fun_names; |
62497
5b5b704f4811
respect qualification when noting theorems in prim(co)rec
traytel
parents:
62326
diff
changeset
|
585 |
val common_qualify = fold_rev I qualifys; |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
586 |
|
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
587 |
val common_notes = |
56857
aa2de99be748
note correct induction schemes in 'primrec' (for N2M)
blanchet
parents:
56651
diff
changeset
|
588 |
(if n2m then [(inductN, [common_induct], [])] else []) |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
589 |
|> map (fn (thmN, thms, attrs) => |
62497
5b5b704f4811
respect qualification when noting theorems in prim(co)rec
traytel
parents:
62326
diff
changeset
|
590 |
((common_qualify (Binding.qualify true common_name (Binding.name thmN)), attrs), |
5b5b704f4811
respect qualification when noting theorems in prim(co)rec
traytel
parents:
62326
diff
changeset
|
591 |
[(thms, [])])); |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
592 |
in |
62497
5b5b704f4811
respect qualification when noting theorems in prim(co)rec
traytel
parents:
62326
diff
changeset
|
593 |
(((fun_names, qualifys, defs), |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
594 |
fn lthy => fn defs => |
59275
77cd4992edcd
Add plugin to generate transfer theorem for primrec and primcorec
desharna
parents:
59058
diff
changeset
|
595 |
let |
77cd4992edcd
Add plugin to generate transfer theorem for primrec and primcorec
desharna
parents:
59058
diff
changeset
|
596 |
val def_thms = map (snd o snd) defs; |
77cd4992edcd
Add plugin to generate transfer theorem for primrec and primcorec
desharna
parents:
59058
diff
changeset
|
597 |
val ts = map fst defs; |
77cd4992edcd
Add plugin to generate transfer theorem for primrec and primcorec
desharna
parents:
59058
diff
changeset
|
598 |
val phi = Local_Theory.target_morphism lthy; |
59281 | 599 |
val fp_rec_sugar = |
600 |
{transfers = transfers, fun_names = fun_names, funs = map (Morphism.term phi) ts, |
|
601 |
fun_defs = Morphism.fact phi def_thms, fpTs = take actual_nn Ts}; |
|
59275
77cd4992edcd
Add plugin to generate transfer theorem for primrec and primcorec
desharna
parents:
59058
diff
changeset
|
602 |
in |
59281 | 603 |
map_prod split_list (interpret_lfp_rec_sugar plugins fp_rec_sugar) |
59673 | 604 |
(@{fold_map 2} (prove (map (snd o snd) defs)) (take actual_nn rec_specs) funs_data lthy) |
59275
77cd4992edcd
Add plugin to generate transfer theorem for primrec and primcorec
desharna
parents:
59058
diff
changeset
|
605 |
end), |
55535
10194808430d
name derivations in 'primrec' for code extraction from proof terms
blanchet
parents:
55530
diff
changeset
|
606 |
lthy |> Local_Theory.notes (notes @ common_notes) |> snd) |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
607 |
end; |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
608 |
|
64674
ef0a5fd30f3b
print constants in 'primrec', 'primcorec(ursive)', 'corec(ursive)', like in 'definition' and 'fun(ction)'
blanchet
parents:
63719
diff
changeset
|
609 |
fun primrec_simple0 int plugins nonexhaustive transfer fixes ts lthy = |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
610 |
let |
59275
77cd4992edcd
Add plugin to generate transfer theorem for primrec and primcorec
desharna
parents:
59058
diff
changeset
|
611 |
val actual_nn = length fixes; |
59281 | 612 |
|
59283 | 613 |
val nonexhaustives = replicate actual_nn nonexhaustive; |
614 |
val transfers = replicate actual_nn transfer; |
|
59281 | 615 |
|
62497
5b5b704f4811
respect qualification when noting theorems in prim(co)rec
traytel
parents:
62326
diff
changeset
|
616 |
val (((names, qualifys, defs), prove), lthy') = |
59595 | 617 |
prepare_primrec plugins nonexhaustives transfers fixes ts lthy; |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
618 |
in |
55527 | 619 |
lthy' |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
620 |
|> fold_map Local_Theory.define defs |
64674
ef0a5fd30f3b
print constants in 'primrec', 'primcorec(ursive)', 'corec(ursive)', like in 'definition' and 'fun(ction)'
blanchet
parents:
63719
diff
changeset
|
621 |
|> tap (uncurry (print_def_consts int)) |
59275
77cd4992edcd
Add plugin to generate transfer theorem for primrec and primcorec
desharna
parents:
59058
diff
changeset
|
622 |
|-> (fn defs => fn lthy => |
62323
8c3eec5812d8
avoid duplicate theorems in 'primrec's result when invoked programmatically
blanchet
parents:
61760
diff
changeset
|
623 |
let val ((jss, simpss), lthy) = prove lthy defs in |
62497
5b5b704f4811
respect qualification when noting theorems in prim(co)rec
traytel
parents:
62326
diff
changeset
|
624 |
(((names, qualifys), (map fst defs, map (snd o snd) defs, (jss, simpss))), lthy) |
62323
8c3eec5812d8
avoid duplicate theorems in 'primrec's result when invoked programmatically
blanchet
parents:
61760
diff
changeset
|
625 |
end) |
59595 | 626 |
end; |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
627 |
|
64674
ef0a5fd30f3b
print constants in 'primrec', 'primcorec(ursive)', 'corec(ursive)', like in 'definition' and 'fun(ction)'
blanchet
parents:
63719
diff
changeset
|
628 |
fun primrec_simple int fixes ts lthy = |
ef0a5fd30f3b
print constants in 'primrec', 'primcorec(ursive)', 'corec(ursive)', like in 'definition' and 'fun(ction)'
blanchet
parents:
63719
diff
changeset
|
629 |
primrec_simple0 int Plugin_Name.default_filter false false fixes ts lthy |
58220 | 630 |
handle OLD_PRIMREC () => |
64674
ef0a5fd30f3b
print constants in 'primrec', 'primcorec(ursive)', 'corec(ursive)', like in 'definition' and 'fun(ction)'
blanchet
parents:
63719
diff
changeset
|
631 |
Old_Primrec.primrec_simple int fixes ts lthy |
62497
5b5b704f4811
respect qualification when noting theorems in prim(co)rec
traytel
parents:
62326
diff
changeset
|
632 |
|>> apsnd (fn (ts, thms) => (ts, [], ([], [thms]))) o apfst single |
5b5b704f4811
respect qualification when noting theorems in prim(co)rec
traytel
parents:
62326
diff
changeset
|
633 |
|>> apfst (map_split (rpair I)); |
56121 | 634 |
|
64674
ef0a5fd30f3b
print constants in 'primrec', 'primcorec(ursive)', 'corec(ursive)', like in 'definition' and 'fun(ction)'
blanchet
parents:
63719
diff
changeset
|
635 |
fun gen_primrec old_primrec prep_spec int opts raw_fixes raw_specs lthy = |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
636 |
let |
60007 | 637 |
val dups = duplicates (op =) (map (fn (x, _, _) => Binding.name_of x) raw_fixes); |
59595 | 638 |
val _ = null dups orelse error ("Duplicate function name " ^ quote (hd dups)); |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
639 |
|
59283 | 640 |
val plugins = get_first (fn Plugins_Option f => SOME (f lthy) | _ => NONE) (rev opts) |
641 |
|> the_default Plugin_Name.default_filter; |
|
642 |
val nonexhaustive = exists (can (fn Nonexhaustive_Option => ())) opts; |
|
643 |
val transfer = exists (can (fn Transfer_Option => ())) opts; |
|
644 |
||
63239
d562c9948dee
explicit tagging of code equations de-baroquifies interface
haftmann
parents:
63183
diff
changeset
|
645 |
val code_attrs = if plugins code_plugin then [Code.add_default_eqn_attrib Code.Equation] else []; |
59283 | 646 |
|
56945 | 647 |
val (fixes, specs) = fst (prep_spec raw_fixes raw_specs lthy); |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
648 |
|
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
649 |
val mk_notes = |
62497
5b5b704f4811
respect qualification when noting theorems in prim(co)rec
traytel
parents:
62326
diff
changeset
|
650 |
flat oooo @{map 4} (fn js => fn prefix => fn qualify => fn thms => |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
651 |
let |
55535
10194808430d
name derivations in 'primrec' for code extraction from proof terms
blanchet
parents:
55530
diff
changeset
|
652 |
val (bs, attrss) = map_split (fst o nth specs) js; |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
653 |
val notes = |
58634
9f10d82e8188
added parameterized ML antiquotations @{map N}, @{fold N}, @{fold_map N}, @{split_list N};
wenzelm
parents:
58389
diff
changeset
|
654 |
@{map 3} (fn b => fn attrs => fn thm => |
59283 | 655 |
((Binding.qualify false prefix b, code_attrs @ nitpicksimp_simp_attrs @ attrs), |
55464 | 656 |
[([thm], [])])) |
657 |
bs attrss thms; |
|
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
658 |
in |
62497
5b5b704f4811
respect qualification when noting theorems in prim(co)rec
traytel
parents:
62326
diff
changeset
|
659 |
((qualify (Binding.qualify true prefix (Binding.name simpsN)), []), [(thms, [])]) :: notes |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
660 |
end); |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
661 |
in |
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
662 |
lthy |
64674
ef0a5fd30f3b
print constants in 'primrec', 'primcorec(ursive)', 'corec(ursive)', like in 'definition' and 'fun(ction)'
blanchet
parents:
63719
diff
changeset
|
663 |
|> primrec_simple0 int plugins nonexhaustive transfer fixes (map snd specs) |
62497
5b5b704f4811
respect qualification when noting theorems in prim(co)rec
traytel
parents:
62326
diff
changeset
|
664 |
|-> (fn ((names, qualifys), (ts, defs, (jss, simpss))) => |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
665 |
Spec_Rules.add Spec_Rules.Equational (ts, flat simpss) |
62497
5b5b704f4811
respect qualification when noting theorems in prim(co)rec
traytel
parents:
62326
diff
changeset
|
666 |
#> Local_Theory.notes (mk_notes jss names qualifys simpss) |
62323
8c3eec5812d8
avoid duplicate theorems in 'primrec's result when invoked programmatically
blanchet
parents:
61760
diff
changeset
|
667 |
#>> (fn notes => (ts, defs, map_filter (fn ("", _) => NONE | (_, thms) => SOME thms) notes))) |
55528
c367f4f3e5d4
have 'primrec_new' fall back on old 'primrec' when given old-style datatypes
blanchet
parents:
55527
diff
changeset
|
668 |
end |
60004 | 669 |
handle OLD_PRIMREC () => |
64674
ef0a5fd30f3b
print constants in 'primrec', 'primcorec(ursive)', 'corec(ursive)', like in 'definition' and 'fun(ction)'
blanchet
parents:
63719
diff
changeset
|
670 |
old_primrec int raw_fixes raw_specs lthy |
60004 | 671 |
|>> (fn (ts, thms) => (ts, [], [thms])); |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
672 |
|
63719 | 673 |
val primrec = gen_primrec Old_Primrec.primrec Specification.check_multi_specs; |
63064
2f18172214c8
support 'assumes' in specifications, e.g. 'definition', 'inductive';
wenzelm
parents:
62497
diff
changeset
|
674 |
val primrec_cmd = gen_primrec Old_Primrec.primrec_cmd Specification.read_multi_specs; |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
675 |
|
64674
ef0a5fd30f3b
print constants in 'primrec', 'primcorec(ursive)', 'corec(ursive)', like in 'definition' and 'fun(ction)'
blanchet
parents:
63719
diff
changeset
|
676 |
fun primrec_global int opts fixes specs = |
55535
10194808430d
name derivations in 'primrec' for code extraction from proof terms
blanchet
parents:
55530
diff
changeset
|
677 |
Named_Target.theory_init |
64674
ef0a5fd30f3b
print constants in 'primrec', 'primcorec(ursive)', 'corec(ursive)', like in 'definition' and 'fun(ction)'
blanchet
parents:
63719
diff
changeset
|
678 |
#> primrec int opts fixes specs |
55535
10194808430d
name derivations in 'primrec' for code extraction from proof terms
blanchet
parents:
55530
diff
changeset
|
679 |
##> Local_Theory.exit_global; |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
680 |
|
64674
ef0a5fd30f3b
print constants in 'primrec', 'primcorec(ursive)', 'corec(ursive)', like in 'definition' and 'fun(ction)'
blanchet
parents:
63719
diff
changeset
|
681 |
fun primrec_overloaded int opts ops fixes specs = |
55535
10194808430d
name derivations in 'primrec' for code extraction from proof terms
blanchet
parents:
55530
diff
changeset
|
682 |
Overloading.overloading ops |
64674
ef0a5fd30f3b
print constants in 'primrec', 'primcorec(ursive)', 'corec(ursive)', like in 'definition' and 'fun(ction)'
blanchet
parents:
63719
diff
changeset
|
683 |
#> primrec int opts fixes specs |
55535
10194808430d
name derivations in 'primrec' for code extraction from proof terms
blanchet
parents:
55530
diff
changeset
|
684 |
##> Local_Theory.exit_global; |
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
685 |
|
59281 | 686 |
val rec_option_parser = Parse.group (K "option") |
687 |
(Plugin_Name.parse_filter >> Plugins_Option |
|
688 |
|| Parse.reserved "nonexhaustive" >> K Nonexhaustive_Option |
|
59279 | 689 |
|| Parse.reserved "transfer" >> K Transfer_Option); |
56121 | 690 |
|
59936
b8ffc3dc9e24
@{command_spec} is superseded by @{command_keyword};
wenzelm
parents:
59859
diff
changeset
|
691 |
val _ = Outer_Syntax.local_theory @{command_keyword primrec} |
55529 | 692 |
"define primitive recursive functions" |
59281 | 693 |
((Scan.optional (@{keyword "("} |-- Parse.!!! (Parse.list1 rec_option_parser) |
63183 | 694 |
--| @{keyword ")"}) []) -- Parse_Spec.specification |
64674
ef0a5fd30f3b
print constants in 'primrec', 'primcorec(ursive)', 'corec(ursive)', like in 'definition' and 'fun(ction)'
blanchet
parents:
63719
diff
changeset
|
695 |
>> (fn (opts, (fixes, specs)) => snd o primrec_cmd true opts fixes specs)); |
55529 | 696 |
|
54246
8fdb4dc08ed1
split 'primrec_new' and 'primcorec' code (to ease bootstrapping, e.g. dependency on datatype 'String' in 'primcorec')
blanchet
parents:
diff
changeset
|
697 |
end; |