author | blanchet |
Fri, 18 Oct 2013 10:35:56 +0200 | |
changeset 54145 | 297d1c603999 |
parent 54133 | a22ded8a7f7d |
child 54153 | 67487a607ce2 |
permissions | -rw-r--r-- |
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1 |
(* Title: HOL/BNF/Tools/bnf_fp_rec_sugar.ML |
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2 |
Author: Lorenz Panny, TU Muenchen |
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3 |
Copyright 2013 |
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Recursor and corecursor sugar. |
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*) |
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7 |
|
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signature BNF_FP_REC_SUGAR = |
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sig |
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val add_primrec: (binding * typ option * mixfix) list -> |
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(Attrib.binding * term) list -> local_theory -> (term list * thm list list) * local_theory |
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val add_primrec_cmd: (binding * string option * mixfix) list -> |
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(Attrib.binding * string) list -> local_theory -> (term list * thm list list) * local_theory |
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val add_primrec_global: (binding * typ option * mixfix) list -> |
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(Attrib.binding * term) list -> theory -> (term list * thm list list) * theory |
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val add_primrec_overloaded: (string * (string * typ) * bool) list -> |
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(binding * typ option * mixfix) list -> |
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(Attrib.binding * term) list -> theory -> (term list * thm list list) * theory |
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val add_primrec_simple: ((binding * typ) * mixfix) list -> term list -> |
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local_theory -> (string list * (term list * (int list list * thm list list))) * local_theory |
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val add_primcorecursive_cmd: bool -> |
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(binding * string option * mixfix) list * ((Attrib.binding * string) * string option) list -> |
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Proof.context -> Proof.state |
53822 | 24 |
val add_primcorec_cmd: bool -> |
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(binding * string option * mixfix) list * ((Attrib.binding * string) * string option) list -> |
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local_theory -> local_theory |
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end; |
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structure BNF_FP_Rec_Sugar : BNF_FP_REC_SUGAR = |
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struct |
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open BNF_Util |
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open BNF_FP_Util |
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open BNF_FP_Rec_Sugar_Util |
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open BNF_FP_Rec_Sugar_Tactics |
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54065 | 37 |
val codeN = "code"; |
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val ctrN = "ctr"; |
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val discN = "disc"; |
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val selN = "sel"; |
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53791 | 41 |
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val nitpicksimp_attrs = @{attributes [nitpick_simp]}; |
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val simp_attrs = @{attributes [simp]}; |
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val code_nitpicksimp_attrs = Code.add_default_eqn_attrib :: nitpicksimp_attrs; |
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val code_nitpicksimp_simp_attrs = Code.add_default_eqn_attrib :: nitpicksimp_attrs @ simp_attrs; |
53794 | 46 |
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exception Primrec_Error of string * term list; |
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fun primrec_error str = raise Primrec_Error (str, []); |
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fun primrec_error_eqn str eqn = raise Primrec_Error (str, [eqn]); |
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fun primrec_error_eqns str eqns = raise Primrec_Error (str, eqns); |
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53358 | 53 |
fun finds eq = fold_map (fn x => List.partition (curry eq x) #>> pair x); |
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53357 | 55 |
val free_name = try (fn Free (v, _) => v); |
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val const_name = try (fn Const (v, _) => v); |
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53358 | 57 |
val undef_const = Const (@{const_name undefined}, dummyT); |
53357 | 58 |
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53358 | 59 |
fun permute_args n t = list_comb (t, map Bound (0 :: (n downto 1))) |
53720 | 60 |
|> fold (K (Term.abs (Name.uu, dummyT))) (0 upto n); |
53401 | 61 |
val abs_tuple = HOLogic.tupled_lambda o HOLogic.mk_tuple; |
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fun drop_All t = subst_bounds (strip_qnt_vars @{const_name all} t |> map Free |> rev, |
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strip_qnt_body @{const_name all} t) |
53720 | 64 |
fun abstract vs = |
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let fun a n (t $ u) = a n t $ a n u |
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| a n (Abs (v, T, b)) = Abs (v, T, a (n + 1) b) |
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| a n t = let val idx = find_index (equal t) vs in |
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if idx < 0 then t else Bound (n + idx) end |
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in a 0 end; |
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fun mk_prod1 Ts (t, u) = HOLogic.pair_const (fastype_of1 (Ts, t)) (fastype_of1 (Ts, u)) $ t $ u; |
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fun mk_tuple1 Ts = the_default HOLogic.unit o try (foldr1 (mk_prod1 Ts)); |
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53794 | 73 |
fun get_indices fixes t = map (fst #>> Binding.name_of #> Free) fixes |
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|> map_index (fn (i, v) => if exists_subterm (equal v) t then SOME i else NONE) |
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|> map_filter I; |
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53310 | 77 |
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(* Primrec *) |
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type eqn_data = { |
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fun_name: string, |
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rec_type: typ, |
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ctr: term, |
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ctr_args: term list, |
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left_args: term list, |
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right_args: term list, |
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res_type: typ, |
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rhs_term: term, |
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user_eqn: term |
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}; |
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91 |
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fun dissect_eqn lthy fun_names eqn' = |
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let |
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val eqn = drop_All eqn' |> HOLogic.dest_Trueprop |
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handle TERM _ => |
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primrec_error_eqn "malformed function equation (expected \"lhs = rhs\")" eqn'; |
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val (lhs, rhs) = HOLogic.dest_eq eqn |
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handle TERM _ => |
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primrec_error_eqn "malformed function equation (expected \"lhs = rhs\")" eqn'; |
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val (fun_name, args) = strip_comb lhs |
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|>> (fn x => if is_Free x then fst (dest_Free x) |
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else primrec_error_eqn "malformed function equation (does not start with free)" eqn); |
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val (left_args, rest) = take_prefix is_Free args; |
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val (nonfrees, right_args) = take_suffix is_Free rest; |
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val num_nonfrees = length nonfrees; |
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val _ = num_nonfrees = 1 orelse if num_nonfrees = 0 then |
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primrec_error_eqn "constructor pattern missing in left-hand side" eqn else |
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primrec_error_eqn "more than one non-variable argument in left-hand side" eqn; |
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val _ = member (op =) fun_names fun_name orelse |
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primrec_error_eqn "malformed function equation (does not start with function name)" eqn |
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111 |
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val (ctr, ctr_args) = strip_comb (the_single nonfrees); |
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val _ = try (num_binder_types o fastype_of) ctr = SOME (length ctr_args) orelse |
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primrec_error_eqn "partially applied constructor in pattern" eqn; |
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val _ = let val d = duplicates (op =) (left_args @ ctr_args @ right_args) in null d orelse |
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primrec_error_eqn ("duplicate variable \"" ^ Syntax.string_of_term lthy (hd d) ^ |
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"\" in left-hand side") eqn end; |
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val _ = forall is_Free ctr_args orelse |
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119 |
primrec_error_eqn "non-primitive pattern in left-hand side" eqn; |
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120 |
val _ = |
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121 |
let val b = fold_aterms (fn x as Free (v, _) => |
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122 |
if (not (member (op =) (left_args @ ctr_args @ right_args) x) andalso |
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123 |
not (member (op =) fun_names v) andalso |
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124 |
not (Variable.is_fixed lthy v)) then cons x else I | _ => I) rhs [] |
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125 |
in |
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126 |
null b orelse |
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127 |
primrec_error_eqn ("extra variable(s) in right-hand side: " ^ |
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128 |
commas (map (Syntax.string_of_term lthy) b)) eqn |
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129 |
end; |
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130 |
in |
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131 |
{fun_name = fun_name, |
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132 |
rec_type = body_type (type_of ctr), |
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133 |
ctr = ctr, |
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134 |
ctr_args = ctr_args, |
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135 |
left_args = left_args, |
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136 |
right_args = right_args, |
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137 |
res_type = map fastype_of (left_args @ right_args) ---> fastype_of rhs, |
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138 |
rhs_term = rhs, |
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139 |
user_eqn = eqn'} |
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140 |
end; |
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|
141 |
|
53401 | 142 |
fun rewrite_map_arg get_ctr_pos rec_type res_type = |
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143 |
let |
53357 | 144 |
val pT = HOLogic.mk_prodT (rec_type, res_type); |
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145 |
|
53357 | 146 |
val maybe_suc = Option.map (fn x => x + 1); |
147 |
fun subst d (t as Bound d') = t |> d = SOME d' ? curry (op $) (fst_const pT) |
|
148 |
| subst d (Abs (v, T, b)) = Abs (v, if d = SOME ~1 then pT else T, subst (maybe_suc d) b) |
|
149 |
| subst d t = |
|
53358 | 150 |
let |
151 |
val (u, vs) = strip_comb t; |
|
53401 | 152 |
val ctr_pos = try (get_ctr_pos o the) (free_name u) |> the_default ~1; |
53358 | 153 |
in |
53401 | 154 |
if ctr_pos >= 0 then |
53357 | 155 |
if d = SOME ~1 andalso length vs = ctr_pos then |
156 |
list_comb (permute_args ctr_pos (snd_const pT), vs) |
|
157 |
else if length vs > ctr_pos andalso is_some d |
|
158 |
andalso d = try (fn Bound n => n) (nth vs ctr_pos) then |
|
159 |
list_comb (snd_const pT $ nth vs ctr_pos, map (subst d) (nth_drop ctr_pos vs)) |
|
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160 |
else |
53357 | 161 |
primrec_error_eqn ("recursive call not directly applied to constructor argument") t |
162 |
else if d = SOME ~1 andalso const_name u = SOME @{const_name comp} then |
|
163 |
list_comb (map_types (K dummyT) u, map2 subst [NONE, d] vs) |
|
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164 |
else |
53357 | 165 |
list_comb (u, map (subst (d |> d = SOME ~1 ? K NONE)) vs) |
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166 |
end |
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|
167 |
in |
53357 | 168 |
subst (SOME ~1) |
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169 |
end; |
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|
170 |
|
54102 | 171 |
fun subst_rec_calls lthy get_ctr_pos has_call ctr_args mutual_calls nested_calls t = |
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|
172 |
let |
53350 | 173 |
fun subst bound_Ts (Abs (v, T, b)) = Abs (v, T, subst (T :: bound_Ts) b) |
53358 | 174 |
| subst bound_Ts (t as g' $ y) = |
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175 |
let |
54102 | 176 |
val maybe_mutual_y' = AList.lookup (op =) mutual_calls y; |
177 |
val maybe_nested_y' = AList.lookup (op =) nested_calls y; |
|
53358 | 178 |
val (g, g_args) = strip_comb g'; |
53401 | 179 |
val ctr_pos = try (get_ctr_pos o the) (free_name g) |> the_default ~1; |
180 |
val _ = ctr_pos < 0 orelse length g_args >= ctr_pos orelse |
|
53358 | 181 |
primrec_error_eqn "too few arguments in recursive call" t; |
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182 |
in |
53358 | 183 |
if not (member (op =) ctr_args y) then |
184 |
pairself (subst bound_Ts) (g', y) |> (op $) |
|
53401 | 185 |
else if ctr_pos >= 0 then |
54102 | 186 |
list_comb (the maybe_mutual_y', g_args) |
187 |
else if is_some maybe_nested_y' then |
|
53358 | 188 |
(if has_call g' then t else y) |
54102 | 189 |
|> massage_nested_rec_call lthy has_call |
190 |
(rewrite_map_arg get_ctr_pos) bound_Ts y (the maybe_nested_y') |
|
53358 | 191 |
|> (if has_call g' then I else curry (op $) g') |
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192 |
else |
53350 | 193 |
t |
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194 |
end |
53350 | 195 |
| subst _ t = t |
196 |
in |
|
197 |
subst [] t |
|
53358 | 198 |
|> tap (fn u => has_call u andalso (* FIXME detect this case earlier *) |
199 |
primrec_error_eqn "recursive call not directly applied to constructor argument" t) |
|
53350 | 200 |
end; |
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|
201 |
|
54003 | 202 |
fun build_rec_arg lthy (funs_data : eqn_data list list) has_call (ctr_spec : rec_ctr_spec) |
203 |
(maybe_eqn_data : eqn_data option) = |
|
53358 | 204 |
if is_none maybe_eqn_data then undef_const else |
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205 |
let |
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|
206 |
val eqn_data = the maybe_eqn_data; |
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|
207 |
val t = #rhs_term eqn_data; |
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|
208 |
val ctr_args = #ctr_args eqn_data; |
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|
209 |
|
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|
210 |
val calls = #calls ctr_spec; |
54102 | 211 |
val n_args = fold (curry (op +) o (fn Mutual_Rec _ => 2 | _ => 1)) calls 0; |
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|
212 |
|
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|
213 |
val no_calls' = tag_list 0 calls |
54102 | 214 |
|> map_filter (try (apsnd (fn No_Rec n => n | Mutual_Rec (n, _) => n))); |
215 |
val mutual_calls' = tag_list 0 calls |
|
216 |
|> map_filter (try (apsnd (fn Mutual_Rec (_, n) => n))); |
|
217 |
val nested_calls' = tag_list 0 calls |
|
218 |
|> map_filter (try (apsnd (fn Nested_Rec n => n))); |
|
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|
219 |
|
54102 | 220 |
fun make_mutual_type _ = dummyT; (* FIXME? *) |
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|
221 |
|
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|
222 |
val rec_res_type_list = map (fn (x :: _) => (#rec_type x, #res_type x)) funs_data; |
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|
223 |
|
54102 | 224 |
fun make_nested_type (Type (Tname, Ts)) = Type (Tname, Ts |> map (fn T => |
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|
225 |
let val maybe_res_type = AList.lookup (op =) rec_res_type_list T in |
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|
226 |
if is_some maybe_res_type |
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|
227 |
then HOLogic.mk_prodT (T, the maybe_res_type) |
54102 | 228 |
else make_nested_type T end)) |
229 |
| make_nested_type T = T; |
|
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|
230 |
|
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|
231 |
val args = replicate n_args ("", dummyT) |
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|
232 |
|> Term.rename_wrt_term t |
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|
233 |
|> map Free |
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|
234 |
|> fold (fn (ctr_arg_idx, arg_idx) => |
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|
235 |
nth_map arg_idx (K (nth ctr_args ctr_arg_idx))) |
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|
236 |
no_calls' |
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|
237 |
|> fold (fn (ctr_arg_idx, arg_idx) => |
54102 | 238 |
nth_map arg_idx (K (nth ctr_args ctr_arg_idx |> map_types make_mutual_type))) |
239 |
mutual_calls' |
|
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|
240 |
|> fold (fn (ctr_arg_idx, arg_idx) => |
54102 | 241 |
nth_map arg_idx (K (nth ctr_args ctr_arg_idx |> map_types make_nested_type))) |
242 |
nested_calls'; |
|
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|
243 |
|
53401 | 244 |
val fun_name_ctr_pos_list = |
245 |
map (fn (x :: _) => (#fun_name x, length (#left_args x))) funs_data; |
|
246 |
val get_ctr_pos = try (the o AList.lookup (op =) fun_name_ctr_pos_list) #> the_default ~1; |
|
54102 | 247 |
val mutual_calls = map (apfst (nth ctr_args) o apsnd (nth args)) mutual_calls'; |
248 |
val nested_calls = map (apfst (nth ctr_args) o apsnd (nth args)) nested_calls'; |
|
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|
249 |
|
53401 | 250 |
val abstractions = args @ #left_args eqn_data @ #right_args eqn_data; |
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|
251 |
in |
53350 | 252 |
t |
54102 | 253 |
|> subst_rec_calls lthy get_ctr_pos has_call ctr_args mutual_calls nested_calls |
53401 | 254 |
|> fold_rev lambda abstractions |
53350 | 255 |
end; |
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|
256 |
|
54003 | 257 |
fun build_defs lthy bs mxs (funs_data : eqn_data list list) (rec_specs : rec_spec list) has_call = |
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|
258 |
let |
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|
259 |
val n_funs = length funs_data; |
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|
260 |
|
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|
261 |
val ctr_spec_eqn_data_list' = |
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|
262 |
(take n_funs rec_specs |> map #ctr_specs) ~~ funs_data |
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|
263 |
|> maps (uncurry (finds (fn (x, y) => #ctr x = #ctr y)) |
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|
264 |
##> (fn x => null x orelse |
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|
265 |
primrec_error_eqns "excess equations in definition" (map #rhs_term x)) #> fst); |
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|
266 |
val _ = ctr_spec_eqn_data_list' |> map (fn (_, x) => length x <= 1 orelse |
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|
267 |
primrec_error_eqns ("multiple equations for constructor") (map #user_eqn x)); |
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|
268 |
|
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|
269 |
val ctr_spec_eqn_data_list = |
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|
270 |
ctr_spec_eqn_data_list' @ (drop n_funs rec_specs |> maps #ctr_specs |> map (rpair [])); |
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|
271 |
|
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|
272 |
val recs = take n_funs rec_specs |> map #recx; |
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|
273 |
val rec_args = ctr_spec_eqn_data_list |
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|
274 |
|> sort ((op <) o pairself (#offset o fst) |> make_ord) |
53358 | 275 |
|> map (uncurry (build_rec_arg lthy funs_data has_call) o apsnd (try the_single)); |
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|
276 |
val ctr_poss = map (fn x => |
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277 |
if length (distinct ((op =) o pairself (length o #left_args)) x) <> 1 then |
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|
278 |
primrec_error ("inconstant constructor pattern position for function " ^ |
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279 |
quote (#fun_name (hd x))) |
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|
280 |
else |
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|
281 |
hd x |> #left_args |> length) funs_data; |
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|
282 |
in |
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|
283 |
(recs, ctr_poss) |
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|
284 |
|-> map2 (fn recx => fn ctr_pos => list_comb (recx, rec_args) |> permute_args ctr_pos) |
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|
285 |
|> Syntax.check_terms lthy |
53352 | 286 |
|> map3 (fn b => fn mx => fn t => ((b, mx), ((Binding.map_name Thm.def_name b, []), t))) bs mxs |
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287 |
end; |
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|
288 |
|
54001 | 289 |
fun find_rec_calls has_call (eqn_data : eqn_data) = |
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|
290 |
let |
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|
291 |
fun find (Abs (_, _, b)) ctr_arg = find b ctr_arg |
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|
292 |
| find (t as _ $ _) ctr_arg = |
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|
293 |
let |
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|
294 |
val (f', args') = strip_comb t; |
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|
295 |
val n = find_index (equal ctr_arg) args'; |
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|
296 |
in |
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|
297 |
if n < 0 then |
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|
298 |
find f' ctr_arg @ maps (fn x => find x ctr_arg) args' |
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|
299 |
else |
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|
300 |
let val (f, args) = chop n args' |>> curry list_comb f' in |
53358 | 301 |
if has_call f then |
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|
302 |
f :: maps (fn x => find x ctr_arg) args |
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|
303 |
else |
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|
304 |
find f ctr_arg @ maps (fn x => find x ctr_arg) args |
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|
305 |
end |
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|
306 |
end |
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|
307 |
| find _ _ = []; |
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|
308 |
in |
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|
309 |
map (find (#rhs_term eqn_data)) (#ctr_args eqn_data) |
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|
310 |
|> (fn [] => NONE | callss => SOME (#ctr eqn_data, callss)) |
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|
311 |
end; |
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|
312 |
|
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|
313 |
fun prepare_primrec fixes specs lthy = |
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|
314 |
let |
53352 | 315 |
val (bs, mxs) = map_split (apfst fst) fixes; |
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316 |
val fun_names = map Binding.name_of bs; |
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317 |
val eqns_data = map (dissect_eqn lthy fun_names) specs; |
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|
318 |
val funs_data = eqns_data |
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|
319 |
|> partition_eq ((op =) o pairself #fun_name) |
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320 |
|> finds (fn (x, y) => x = #fun_name (hd y)) fun_names |> fst |
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|
321 |
|> map (fn (x, y) => the_single y handle List.Empty => |
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|
322 |
primrec_error ("missing equations for function " ^ quote x)); |
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|
323 |
|
53358 | 324 |
val has_call = exists_subterm (map (fst #>> Binding.name_of #> Free) fixes |> member (op =)); |
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|
325 |
val arg_Ts = map (#rec_type o hd) funs_data; |
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|
326 |
val res_Ts = map (#res_type o hd) funs_data; |
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|
327 |
val callssss = funs_data |
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|
328 |
|> map (partition_eq ((op =) o pairself #ctr)) |
53358 | 329 |
|> map (maps (map_filter (find_rec_calls has_call))); |
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|
330 |
|
53830
ed2eb7df2aac
don't note more induction principles than there are functions + tuning
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|
331 |
val ((n2m, rec_specs, _, induct_thm, induct_thms), lthy') = |
53794 | 332 |
rec_specs_of bs arg_Ts res_Ts (get_indices fixes) callssss lthy; |
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|
333 |
|
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|
334 |
val actual_nn = length funs_data; |
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|
335 |
|
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|
336 |
val _ = let val ctrs = (maps (map #ctr o #ctr_specs) rec_specs) in |
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|
337 |
map (fn {ctr, user_eqn, ...} => member (op =) ctrs ctr orelse |
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|
338 |
primrec_error_eqn ("argument " ^ quote (Syntax.string_of_term lthy' ctr) ^ |
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|
339 |
" is not a constructor in left-hand side") user_eqn) eqns_data end; |
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|
340 |
|
53358 | 341 |
val defs = build_defs lthy' bs mxs funs_data rec_specs has_call; |
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|
342 |
|
54013
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|
343 |
fun prove lthy def_thms' ({ctr_specs, nested_map_idents, nested_map_comps, ...} : rec_spec) |
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|
344 |
(fun_data : eqn_data list) = |
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|
345 |
let |
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|
346 |
val def_thms = map (snd o snd) def_thms'; |
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|
347 |
val simp_thmss = finds (fn (x, y) => #ctr x = #ctr y) fun_data ctr_specs |
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|
348 |
|> fst |
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|
349 |
|> map_filter (try (fn (x, [y]) => |
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|
350 |
(#user_eqn x, length (#left_args x) + length (#right_args x), #rec_thm y))) |
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|
351 |
|> map (fn (user_eqn, num_extra_args, rec_thm) => |
53329 | 352 |
mk_primrec_tac lthy num_extra_args nested_map_idents nested_map_comps def_thms rec_thm |
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|
353 |
|> K |> Goal.prove lthy [] [] user_eqn); |
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|
354 |
val poss = find_indices (fn (x, y) => #ctr x = #ctr y) fun_data eqns_data; |
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|
355 |
in |
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|
356 |
(poss, simp_thmss) |
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|
357 |
end; |
53303
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|
358 |
|
54013
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|
359 |
val notes = |
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|
360 |
(if n2m then map2 (fn name => fn thm => |
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|
361 |
(name, inductN, [thm], [])) fun_names (take actual_nn induct_thms) else []) |
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improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
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|
362 |
|> map (fn (prefix, thmN, thms, attrs) => |
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|
363 |
((Binding.qualify true prefix (Binding.name thmN), attrs), [(thms, [])])); |
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|
364 |
|
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|
365 |
val common_name = mk_common_name fun_names; |
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|
366 |
|
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|
367 |
val common_notes = |
54013
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|
368 |
(if n2m then [(inductN, [induct_thm], [])] else []) |
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|
369 |
|> map (fn (thmN, thms, attrs) => |
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|
370 |
((Binding.qualify true common_name (Binding.name thmN), attrs), [(thms, [])])); |
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changeset
|
371 |
in |
54013
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improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
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|
372 |
(((fun_names, defs), |
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|
373 |
fn lthy => fn defs => |
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|
374 |
split_list (map2 (prove lthy defs) (take actual_nn rec_specs) funs_data)), |
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|
375 |
lthy' |> Local_Theory.notes (notes @ common_notes) |> snd) |
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|
376 |
end; |
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|
377 |
|
54013
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|
378 |
(* primrec definition *) |
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|
379 |
|
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|
380 |
fun add_primrec_simple fixes ts lthy = |
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|
381 |
let |
54013
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|
382 |
val (((names, defs), prove), lthy) = prepare_primrec fixes ts lthy |
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|
383 |
handle ERROR str => primrec_error str; |
53303
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moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
384 |
in |
54013
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
385 |
lthy |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
386 |
|> fold_map Local_Theory.define defs |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
387 |
|-> (fn defs => `(fn lthy => (names, (map fst defs, prove lthy defs)))) |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
388 |
end |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
389 |
handle Primrec_Error (str, eqns) => |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
390 |
if null eqns |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
391 |
then error ("primrec_new error:\n " ^ str) |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
392 |
else error ("primrec_new error:\n " ^ str ^ "\nin\n " ^ |
53822 | 393 |
space_implode "\n " (map (quote o Syntax.string_of_term lthy) eqns)); |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
394 |
|
54013
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
395 |
local |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
396 |
|
54028 | 397 |
fun gen_primrec prep_spec (raw_fixes : (binding * 'a option * mixfix) list) raw_spec lthy = |
54013
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
398 |
let |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
399 |
val d = duplicates (op =) (map (Binding.name_of o #1) raw_fixes) |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
400 |
val _ = null d orelse primrec_error ("duplicate function name(s): " ^ commas d); |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
401 |
|
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
402 |
val (fixes, specs) = fst (prep_spec raw_fixes raw_spec lthy); |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
403 |
|
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
404 |
val mk_notes = |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
405 |
flat ooo map3 (fn poss => fn prefix => fn thms => |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
406 |
let |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
407 |
val (bs, attrss) = map_split (fst o nth specs) poss; |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
408 |
val notes = |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
409 |
map3 (fn b => fn attrs => fn thm => |
54145
297d1c603999
make sure that registered code equations are actually equations
blanchet
parents:
54133
diff
changeset
|
410 |
((Binding.qualify false prefix b, code_nitpicksimp_simp_attrs @ attrs), [([thm], [])])) |
54013
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
411 |
bs attrss thms; |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
412 |
in |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
413 |
((Binding.qualify true prefix (Binding.name simpsN), []), [(thms, [])]) :: notes |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
414 |
end); |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
415 |
in |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
416 |
lthy |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
417 |
|> add_primrec_simple fixes (map snd specs) |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
418 |
|-> (fn (names, (ts, (posss, simpss))) => |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
419 |
Spec_Rules.add Spec_Rules.Equational (ts, flat simpss) |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
420 |
#> Local_Theory.notes (mk_notes posss names simpss) |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
421 |
#>> pair ts o map snd) |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
422 |
end; |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
423 |
|
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
424 |
in |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
425 |
|
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
426 |
val add_primrec = gen_primrec Specification.check_spec; |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
427 |
val add_primrec_cmd = gen_primrec Specification.read_spec; |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
428 |
|
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
429 |
end; |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
430 |
|
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
431 |
fun add_primrec_global fixes specs thy = |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
432 |
let |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
433 |
val lthy = Named_Target.theory_init thy; |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
434 |
val ((ts, simps), lthy') = add_primrec fixes specs lthy; |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
435 |
val simps' = burrow (Proof_Context.export lthy' lthy) simps; |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
436 |
in ((ts, simps'), Local_Theory.exit_global lthy') end; |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
437 |
|
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
438 |
fun add_primrec_overloaded ops fixes specs thy = |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
439 |
let |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
440 |
val lthy = Overloading.overloading ops thy; |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
441 |
val ((ts, simps), lthy') = add_primrec fixes specs lthy; |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
442 |
val simps' = burrow (Proof_Context.export lthy' lthy) simps; |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
443 |
in ((ts, simps'), Local_Theory.exit_global lthy') end; |
38c0bbb8348b
improved backwards compatiblity of primrec_new (Isabelle/ML interface, attributes, etc.)
traytel
parents:
54003
diff
changeset
|
444 |
|
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
445 |
|
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
446 |
|
53310 | 447 |
(* Primcorec *) |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
448 |
|
53341 | 449 |
type co_eqn_data_disc = { |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
450 |
fun_name: string, |
53720 | 451 |
fun_T: typ, |
53401 | 452 |
fun_args: term list, |
53720 | 453 |
ctr: term, |
53341 | 454 |
ctr_no: int, (*###*) |
53720 | 455 |
disc: term, |
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
456 |
prems: term list, |
53822 | 457 |
auto_gen: bool, |
54097
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
458 |
maybe_ctr_rhs: term option, |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
459 |
maybe_code_rhs: term option, |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
460 |
user_eqn: term |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
461 |
}; |
54001 | 462 |
|
53341 | 463 |
type co_eqn_data_sel = { |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
464 |
fun_name: string, |
53720 | 465 |
fun_T: typ, |
53401 | 466 |
fun_args: term list, |
53341 | 467 |
ctr: term, |
468 |
sel: term, |
|
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
469 |
rhs_term: term, |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
470 |
user_eqn: term |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
471 |
}; |
54001 | 472 |
|
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
473 |
datatype co_eqn_data = |
53341 | 474 |
Disc of co_eqn_data_disc | |
475 |
Sel of co_eqn_data_sel; |
|
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
476 |
|
54132 | 477 |
fun co_dissect_eqn_disc seq fun_names (ctr_specss : corec_ctr_spec list list) maybe_ctr_rhs |
478 |
maybe_code_rhs prems' concl matchedsss = |
|
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
479 |
let |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
480 |
fun find_subterm p = let (* FIXME \<exists>? *) |
53401 | 481 |
fun f (t as u $ v) = if p t then SOME t else merge_options (f u, f v) |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
482 |
| f t = if p t then SOME t else NONE |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
483 |
in f end; |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
484 |
|
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
485 |
val applied_fun = concl |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
486 |
|> find_subterm (member ((op =) o apsnd SOME) fun_names o try (fst o dest_Free o head_of)) |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
487 |
|> the |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
488 |
handle Option.Option => primrec_error_eqn "malformed discriminator equation" concl; |
53720 | 489 |
val ((fun_name, fun_T), fun_args) = strip_comb applied_fun |>> dest_Free; |
54132 | 490 |
val ctr_specs = the (AList.lookup (op =) (fun_names ~~ ctr_specss) fun_name); |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
491 |
|
53720 | 492 |
val discs = map #disc ctr_specs; |
493 |
val ctrs = map #ctr ctr_specs; |
|
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
494 |
val not_disc = head_of concl = @{term Not}; |
53401 | 495 |
val _ = not_disc andalso length ctrs <> 2 andalso |
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
496 |
primrec_error_eqn "\<not>ed discriminator for a type with \<noteq> 2 constructors" concl; |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
497 |
val disc = find_subterm (member (op =) discs o head_of) concl; |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
498 |
val eq_ctr0 = concl |> perhaps (try (HOLogic.dest_not)) |> try (HOLogic.dest_eq #> snd) |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
499 |
|> (fn SOME t => let val n = find_index (equal t) ctrs in |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
500 |
if n >= 0 then SOME n else NONE end | _ => NONE); |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
501 |
val _ = is_some disc orelse is_some eq_ctr0 orelse |
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
502 |
primrec_error_eqn "no discriminator in equation" concl; |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
503 |
val ctr_no' = |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
504 |
if is_none disc then the eq_ctr0 else find_index (equal (head_of (the disc))) discs; |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
505 |
val ctr_no = if not_disc then 1 - ctr_no' else ctr_no'; |
53720 | 506 |
val ctr = #ctr (nth ctr_specs ctr_no); |
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
507 |
|
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
508 |
val catch_all = try (fst o dest_Free o the_single) prems' = SOME Name.uu_; |
53720 | 509 |
val matchedss = AList.lookup (op =) matchedsss fun_name |> the_default []; |
510 |
val prems = map (abstract (List.rev fun_args)) prems'; |
|
511 |
val real_prems = |
|
54067 | 512 |
(if catch_all orelse seq then maps s_not_conj matchedss else []) @ |
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
513 |
(if catch_all then [] else prems); |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
514 |
|
53720 | 515 |
val matchedsss' = AList.delete (op =) fun_name matchedsss |
54065 | 516 |
|> cons (fun_name, if seq then matchedss @ [prems] else matchedss @ [real_prems]); |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
517 |
|
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
518 |
val user_eqn = |
54097
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
519 |
(real_prems, concl) |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
520 |
|>> map HOLogic.mk_Trueprop ||> HOLogic.mk_Trueprop o abstract (List.rev fun_args) |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
521 |
|> curry Logic.list_all (map dest_Free fun_args) o Logic.list_implies; |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
522 |
in |
53341 | 523 |
(Disc { |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
524 |
fun_name = fun_name, |
53720 | 525 |
fun_T = fun_T, |
53401 | 526 |
fun_args = fun_args, |
53720 | 527 |
ctr = ctr, |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
528 |
ctr_no = ctr_no, |
53720 | 529 |
disc = #disc (nth ctr_specs ctr_no), |
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
530 |
prems = real_prems, |
53822 | 531 |
auto_gen = catch_all, |
54097
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
532 |
maybe_ctr_rhs = maybe_ctr_rhs, |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
533 |
maybe_code_rhs = maybe_code_rhs, |
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
534 |
user_eqn = user_eqn |
53720 | 535 |
}, matchedsss') |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
536 |
end; |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
537 |
|
54132 | 538 |
fun co_dissect_eqn_sel fun_names (ctr_specss : corec_ctr_spec list list) eqn' of_spec eqn = |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
539 |
let |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
540 |
val (lhs, rhs) = HOLogic.dest_eq eqn |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
541 |
handle TERM _ => |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
542 |
primrec_error_eqn "malformed function equation (expected \"lhs = rhs\")" eqn; |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
543 |
val sel = head_of lhs; |
53720 | 544 |
val ((fun_name, fun_T), fun_args) = dest_comb lhs |> snd |> strip_comb |> apfst dest_Free |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
545 |
handle TERM _ => |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
546 |
primrec_error_eqn "malformed selector argument in left-hand side" eqn; |
54132 | 547 |
val ctr_specs = the (AList.lookup (op =) (fun_names ~~ ctr_specss) fun_name) |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
548 |
handle Option.Option => primrec_error_eqn "malformed selector argument in left-hand side" eqn; |
53831
80423b9080cf
support "of" syntax to disambiguate selector equations
panny
parents:
53830
diff
changeset
|
549 |
val ctr_spec = |
80423b9080cf
support "of" syntax to disambiguate selector equations
panny
parents:
53830
diff
changeset
|
550 |
if is_some of_spec |
54132 | 551 |
then the (find_first (equal (the of_spec) o #ctr) ctr_specs) |
552 |
else ctr_specs |> filter (exists (equal sel) o #sels) |> the_single |
|
53831
80423b9080cf
support "of" syntax to disambiguate selector equations
panny
parents:
53830
diff
changeset
|
553 |
handle List.Empty => primrec_error_eqn "ambiguous selector - use \"of\"" eqn; |
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
554 |
val user_eqn = drop_All eqn'; |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
555 |
in |
53341 | 556 |
Sel { |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
557 |
fun_name = fun_name, |
53720 | 558 |
fun_T = fun_T, |
53401 | 559 |
fun_args = fun_args, |
53341 | 560 |
ctr = #ctr ctr_spec, |
561 |
sel = sel, |
|
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
562 |
rhs_term = rhs, |
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
563 |
user_eqn = user_eqn |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
564 |
} |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
565 |
end; |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
566 |
|
54132 | 567 |
fun co_dissect_eqn_ctr seq fun_names (ctr_specss : corec_ctr_spec list list) eqn' maybe_code_rhs |
54097
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
568 |
prems concl matchedsss = |
53910 | 569 |
let |
54065 | 570 |
val (lhs, rhs) = HOLogic.dest_eq concl; |
54097
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
571 |
val (fun_name, fun_args) = strip_comb lhs |>> fst o dest_Free; |
54132 | 572 |
val ctr_specs = the (AList.lookup (op =) (fun_names ~~ ctr_specss) fun_name); |
54074
43cdae9524bf
allow 'let's around constructors in constructor view
blanchet
parents:
54068
diff
changeset
|
573 |
val (ctr, ctr_args) = strip_comb (unfold_let rhs); |
53720 | 574 |
val {disc, sels, ...} = the (find_first (equal ctr o #ctr) ctr_specs) |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
575 |
handle Option.Option => primrec_error_eqn "not a constructor" ctr; |
53341 | 576 |
|
54065 | 577 |
val disc_concl = betapply (disc, lhs); |
53720 | 578 |
val (maybe_eqn_data_disc, matchedsss') = if length ctr_specs = 1 |
579 |
then (NONE, matchedsss) |
|
54132 | 580 |
else apfst SOME (co_dissect_eqn_disc seq fun_names ctr_specss |
54097
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
581 |
(SOME (abstract (List.rev fun_args) rhs)) maybe_code_rhs prems disc_concl matchedsss); |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
582 |
|
54065 | 583 |
val sel_concls = (sels ~~ ctr_args) |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
584 |
|> map (fn (sel, ctr_arg) => HOLogic.mk_eq (betapply (sel, lhs), ctr_arg)); |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
585 |
|
53856 | 586 |
(* |
54065 | 587 |
val _ = tracing ("reduced\n " ^ Syntax.string_of_term @{context} concl ^ "\nto\n \<cdot> " ^ |
588 |
(is_some maybe_eqn_data_disc ? K (Syntax.string_of_term @{context} disc_concl ^ "\n \<cdot> ")) "" ^ |
|
54097
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
589 |
space_implode "\n \<cdot> " (map (Syntax.string_of_term @{context}) sel_concls) ^ |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
590 |
"\nfor premise(s)\n \<cdot> " ^ |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
591 |
space_implode "\n \<cdot> " (map (Syntax.string_of_term @{context}) prems)); |
53856 | 592 |
*) |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
593 |
|
54132 | 594 |
val eqns_data_sel = map (co_dissect_eqn_sel fun_names ctr_specss eqn' (SOME ctr)) sel_concls; |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
595 |
in |
53720 | 596 |
(the_list maybe_eqn_data_disc @ eqns_data_sel, matchedsss') |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
597 |
end; |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
598 |
|
54132 | 599 |
fun co_dissect_eqn_code lthy has_call fun_names ctr_specss eqn' concl matchedsss = |
54065 | 600 |
let |
601 |
val (lhs, (rhs', rhs)) = HOLogic.dest_eq concl ||> `(expand_corec_code_rhs lthy has_call []); |
|
54097
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
602 |
val (fun_name, fun_args) = strip_comb lhs |>> fst o dest_Free; |
54132 | 603 |
val ctr_specs = the (AList.lookup (op =) (fun_names ~~ ctr_specss) fun_name); |
54065 | 604 |
|
605 |
val cond_ctrs = fold_rev_corec_code_rhs lthy (fn cs => fn ctr => fn _ => |
|
606 |
if member ((op =) o apsnd #ctr) ctr_specs ctr |
|
607 |
then cons (ctr, cs) |
|
608 |
else primrec_error_eqn "not a constructor" ctr) [] rhs' [] |
|
609 |
|> AList.group (op =); |
|
610 |
||
54068 | 611 |
val ctr_premss = (case cond_ctrs of [_] => [[]] | _ => map (s_dnf o snd) cond_ctrs); |
54065 | 612 |
val ctr_concls = cond_ctrs |> map (fn (ctr, _) => |
613 |
binder_types (fastype_of ctr) |
|
614 |
|> map_index (fn (n, T) => massage_corec_code_rhs lthy (fn _ => fn ctr' => fn args => |
|
615 |
if ctr' = ctr then nth args n else Const (@{const_name undefined}, T)) [] rhs') |
|
616 |
|> curry list_comb ctr |
|
617 |
|> curry HOLogic.mk_eq lhs); |
|
618 |
in |
|
54132 | 619 |
fold_map2 (co_dissect_eqn_ctr false fun_names ctr_specss eqn' |
54097
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
620 |
(SOME (abstract (List.rev fun_args) rhs))) |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
621 |
ctr_premss ctr_concls matchedsss |
54065 | 622 |
end; |
623 |
||
54132 | 624 |
fun co_dissect_eqn lthy seq has_call fun_names (ctr_specss : corec_ctr_spec list list) eqn' of_spec |
54065 | 625 |
matchedsss = |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
626 |
let |
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
627 |
val eqn = drop_All eqn' |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
628 |
handle TERM _ => primrec_error_eqn "malformed function equation" eqn'; |
54065 | 629 |
val (prems, concl) = Logic.strip_horn eqn |
53341 | 630 |
|> apfst (map HOLogic.dest_Trueprop) o apsnd HOLogic.dest_Trueprop; |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
631 |
|
54065 | 632 |
val head = concl |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
633 |
|> perhaps (try HOLogic.dest_not) |> perhaps (try (fst o HOLogic.dest_eq)) |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
634 |
|> head_of; |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
635 |
|
54065 | 636 |
val maybe_rhs = concl |> perhaps (try (HOLogic.dest_not)) |> try (snd o HOLogic.dest_eq); |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
637 |
|
54132 | 638 |
val discs = maps (map #disc) ctr_specss; |
639 |
val sels = maps (maps #sels) ctr_specss; |
|
640 |
val ctrs = maps (map #ctr) ctr_specss; |
|
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
641 |
in |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
642 |
if member (op =) discs head orelse |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
643 |
is_some maybe_rhs andalso |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
644 |
member (op =) (filter (null o binder_types o fastype_of) ctrs) (the maybe_rhs) then |
54132 | 645 |
co_dissect_eqn_disc seq fun_names ctr_specss NONE NONE prems concl matchedsss |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
646 |
|>> single |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
647 |
else if member (op =) sels head then |
54132 | 648 |
([co_dissect_eqn_sel fun_names ctr_specss eqn' of_spec concl], matchedsss) |
54065 | 649 |
else if is_Free head andalso member (op =) fun_names (fst (dest_Free head)) andalso |
54074
43cdae9524bf
allow 'let's around constructors in constructor view
blanchet
parents:
54068
diff
changeset
|
650 |
member (op =) ctrs (head_of (unfold_let (the maybe_rhs))) then |
54132 | 651 |
co_dissect_eqn_ctr seq fun_names ctr_specss eqn' NONE prems concl matchedsss |
54065 | 652 |
else if is_Free head andalso member (op =) fun_names (fst (dest_Free head)) andalso |
653 |
null prems then |
|
54132 | 654 |
co_dissect_eqn_code lthy has_call fun_names ctr_specss eqn' concl matchedsss |
54065 | 655 |
|>> flat |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
656 |
else |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
657 |
primrec_error_eqn "malformed function equation" eqn |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
658 |
end; |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
659 |
|
54002 | 660 |
fun build_corec_arg_disc (ctr_specs : corec_ctr_spec list) |
661 |
({fun_args, ctr_no, prems, ...} : co_eqn_data_disc) = |
|
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
662 |
if is_none (#pred (nth ctr_specs ctr_no)) then I else |
54068 | 663 |
s_conjs prems |
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
664 |
|> curry subst_bounds (List.rev fun_args) |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
665 |
|> HOLogic.tupled_lambda (HOLogic.mk_tuple fun_args) |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
666 |
|> K |> nth_map (the (#pred (nth ctr_specs ctr_no))); |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
667 |
|
54002 | 668 |
fun build_corec_arg_no_call (sel_eqns : co_eqn_data_sel list) sel = |
53720 | 669 |
find_first (equal sel o #sel) sel_eqns |
670 |
|> try (fn SOME {fun_args, rhs_term, ...} => abs_tuple fun_args rhs_term) |
|
671 |
|> the_default undef_const |
|
53411 | 672 |
|> K; |
53360 | 673 |
|
54102 | 674 |
fun build_corec_args_mutual_call lthy has_call (sel_eqns : co_eqn_data_sel list) sel = |
53360 | 675 |
let |
53411 | 676 |
val maybe_sel_eqn = find_first (equal sel o #sel) sel_eqns; |
53360 | 677 |
in |
53876 | 678 |
if is_none maybe_sel_eqn then (I, I, I) else |
679 |
let |
|
680 |
val {fun_args, rhs_term, ... } = the maybe_sel_eqn; |
|
54097
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
681 |
val bound_Ts = List.rev (map fastype_of fun_args); |
53890 | 682 |
fun rewrite_q _ t = if has_call t then @{term False} else @{term True}; |
683 |
fun rewrite_g _ t = if has_call t then undef_const else t; |
|
53899 | 684 |
fun rewrite_h bound_Ts t = |
685 |
if has_call t then mk_tuple1 bound_Ts (snd (strip_comb t)) else undef_const; |
|
54102 | 686 |
fun massage f _ = massage_mutual_corec_call lthy has_call f bound_Ts rhs_term |
54097
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
687 |
|> abs_tuple fun_args; |
53876 | 688 |
in |
689 |
(massage rewrite_q, |
|
690 |
massage rewrite_g, |
|
691 |
massage rewrite_h) |
|
692 |
end |
|
53360 | 693 |
end; |
694 |
||
54102 | 695 |
fun build_corec_arg_nested_call lthy has_call (sel_eqns : co_eqn_data_sel list) sel = |
53411 | 696 |
let |
697 |
val maybe_sel_eqn = find_first (equal sel o #sel) sel_eqns; |
|
53899 | 698 |
in |
699 |
if is_none maybe_sel_eqn then I else |
|
700 |
let |
|
701 |
val {fun_args, rhs_term, ...} = the maybe_sel_eqn; |
|
54097
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
702 |
val bound_Ts = List.rev (map fastype_of fun_args); |
53899 | 703 |
fun rewrite bound_Ts U T (Abs (v, V, b)) = Abs (v, V, rewrite (V :: bound_Ts) U T b) |
704 |
| rewrite bound_Ts U T (t as _ $ _) = |
|
705 |
let val (u, vs) = strip_comb t in |
|
706 |
if is_Free u andalso has_call u then |
|
707 |
Inr_const U T $ mk_tuple1 bound_Ts vs |
|
708 |
else if try (fst o dest_Const) u = SOME @{const_name prod_case} then |
|
709 |
map (rewrite bound_Ts U T) vs |> chop 1 |>> HOLogic.mk_split o the_single |> list_comb |
|
710 |
else |
|
711 |
list_comb (rewrite bound_Ts U T u, map (rewrite bound_Ts U T) vs) |
|
712 |
end |
|
713 |
| rewrite _ U T t = |
|
714 |
if is_Free t andalso has_call t then Inr_const U T $ HOLogic.unit else t; |
|
715 |
fun massage t = |
|
54097
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
716 |
rhs_term |
54102 | 717 |
|> massage_nested_corec_call lthy has_call rewrite bound_Ts (range_type (fastype_of t)) |
53735 | 718 |
|> abs_tuple fun_args; |
53899 | 719 |
in |
720 |
massage |
|
721 |
end |
|
53411 | 722 |
end; |
53360 | 723 |
|
54002 | 724 |
fun build_corec_args_sel lthy has_call (all_sel_eqns : co_eqn_data_sel list) |
725 |
(ctr_spec : corec_ctr_spec) = |
|
53341 | 726 |
let val sel_eqns = filter (equal (#ctr ctr_spec) o #ctr) all_sel_eqns in |
727 |
if null sel_eqns then I else |
|
728 |
let |
|
729 |
val sel_call_list = #sels ctr_spec ~~ #calls ctr_spec; |
|
730 |
||
731 |
val no_calls' = map_filter (try (apsnd (fn No_Corec n => n))) sel_call_list; |
|
54102 | 732 |
val mutual_calls' = map_filter (try (apsnd (fn Mutual_Corec n => n))) sel_call_list; |
733 |
val nested_calls' = map_filter (try (apsnd (fn Nested_Corec n => n))) sel_call_list; |
|
53341 | 734 |
in |
53360 | 735 |
I |
53735 | 736 |
#> fold (fn (sel, n) => nth_map n (build_corec_arg_no_call sel_eqns sel)) no_calls' |
53360 | 737 |
#> fold (fn (sel, (q, g, h)) => |
54102 | 738 |
let val (fq, fg, fh) = build_corec_args_mutual_call lthy has_call sel_eqns sel in |
739 |
nth_map q fq o nth_map g fg o nth_map h fh end) mutual_calls' |
|
53360 | 740 |
#> fold (fn (sel, n) => nth_map n |
54102 | 741 |
(build_corec_arg_nested_call lthy has_call sel_eqns sel)) nested_calls' |
53341 | 742 |
end |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
743 |
end; |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
744 |
|
54002 | 745 |
fun co_build_defs lthy bs mxs has_call arg_Tss (corec_specs : corec_spec list) |
746 |
(disc_eqnss : co_eqn_data_disc list list) (sel_eqnss : co_eqn_data_sel list list) = |
|
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
747 |
let |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
748 |
val corec_specs' = take (length bs) corec_specs; |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
749 |
val corecs = map #corec corec_specs'; |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
750 |
val ctr_specss = map #ctr_specs corec_specs'; |
53360 | 751 |
val corec_args = hd corecs |
752 |
|> fst o split_last o binder_types o fastype_of |
|
753 |
|> map (Const o pair @{const_name undefined}) |
|
53720 | 754 |
|> fold2 (fold o build_corec_arg_disc) ctr_specss disc_eqnss |
53360 | 755 |
|> fold2 (fold o build_corec_args_sel lthy has_call) sel_eqnss ctr_specss; |
53735 | 756 |
fun currys [] t = t |
757 |
| currys Ts t = t $ mk_tuple1 (List.rev Ts) (map Bound (length Ts - 1 downto 0)) |
|
758 |
|> fold_rev (Term.abs o pair Name.uu) Ts; |
|
53401 | 759 |
|
53856 | 760 |
(* |
53360 | 761 |
val _ = tracing ("corecursor arguments:\n \<cdot> " ^ |
53411 | 762 |
space_implode "\n \<cdot> " (map (Syntax.string_of_term lthy) corec_args)); |
53856 | 763 |
*) |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
764 |
|
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
765 |
val exclss' = |
53720 | 766 |
disc_eqnss |
53822 | 767 |
|> map (map (fn x => (#fun_args x, #ctr_no x, #prems x, #auto_gen x)) |
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
768 |
#> fst o (fn xs => fold_map (fn x => fn ys => ((x, ys), ys @ [x])) xs []) |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
769 |
#> maps (uncurry (map o pair) |
53822 | 770 |
#> map (fn ((fun_args, c, x, a), (_, c', y, a')) => |
54068 | 771 |
((c, c', a orelse a'), (x, s_not (s_conjs y))) |
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
772 |
||> apfst (map HOLogic.mk_Trueprop) o apsnd HOLogic.mk_Trueprop |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
773 |
||> Logic.list_implies |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
774 |
||> curry Logic.list_all (map dest_Free fun_args)))) |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
775 |
in |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
776 |
map (list_comb o rpair corec_args) corecs |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
777 |
|> map2 (fn Ts => fn t => if length Ts = 0 then t $ HOLogic.unit else t) arg_Tss |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
778 |
|> map2 currys arg_Tss |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
779 |
|> Syntax.check_terms lthy |
53352 | 780 |
|> map3 (fn b => fn mx => fn t => ((b, mx), ((Binding.map_name Thm.def_name b, []), t))) bs mxs |
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
781 |
|> rpair exclss' |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
782 |
end; |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
783 |
|
54002 | 784 |
fun mk_real_disc_eqns fun_binding arg_Ts ({ctr_specs, ...} : corec_spec) |
785 |
(sel_eqns : co_eqn_data_sel list) (disc_eqns : co_eqn_data_disc list) = |
|
53720 | 786 |
if length disc_eqns <> length ctr_specs - 1 then disc_eqns else |
787 |
let |
|
788 |
val n = 0 upto length ctr_specs |
|
789 |
|> the o find_first (fn idx => not (exists (equal idx o #ctr_no) disc_eqns)); |
|
53722
e176d6d3345f
generate more theorems (e.g. for types with only one constructor)
panny
parents:
53720
diff
changeset
|
790 |
val fun_args = (try (#fun_args o hd) disc_eqns, try (#fun_args o hd) sel_eqns) |
e176d6d3345f
generate more theorems (e.g. for types with only one constructor)
panny
parents:
53720
diff
changeset
|
791 |
|> the_default (map (curry Free Name.uu) arg_Ts) o merge_options; |
53720 | 792 |
val extra_disc_eqn = { |
793 |
fun_name = Binding.name_of fun_binding, |
|
794 |
fun_T = arg_Ts ---> body_type (fastype_of (#ctr (hd ctr_specs))), |
|
53722
e176d6d3345f
generate more theorems (e.g. for types with only one constructor)
panny
parents:
53720
diff
changeset
|
795 |
fun_args = fun_args, |
53720 | 796 |
ctr = #ctr (nth ctr_specs n), |
797 |
ctr_no = n, |
|
798 |
disc = #disc (nth ctr_specs n), |
|
54067 | 799 |
prems = maps (s_not_conj o #prems) disc_eqns, |
53822 | 800 |
auto_gen = true, |
54097
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
801 |
maybe_ctr_rhs = NONE, |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
802 |
maybe_code_rhs = NONE, |
53720 | 803 |
user_eqn = undef_const}; |
804 |
in |
|
805 |
chop n disc_eqns ||> cons extra_disc_eqn |> (op @) |
|
806 |
end; |
|
807 |
||
54065 | 808 |
fun add_primcorec simple seq fixes specs of_specs lthy = |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
809 |
let |
53352 | 810 |
val (bs, mxs) = map_split (apfst fst) fixes; |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
811 |
val (arg_Ts, res_Ts) = map (strip_type o snd o fst #>> HOLogic.mk_tupleT) fixes |> split_list; |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
812 |
|
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
813 |
val callssss = []; (* FIXME *) |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
814 |
|
53830
ed2eb7df2aac
don't note more induction principles than there are functions + tuning
blanchet
parents:
53822
diff
changeset
|
815 |
val ((n2m, corec_specs', _, coinduct_thm, strong_coinduct_thm, coinduct_thms, |
53797 | 816 |
strong_coinduct_thms), lthy') = |
53794 | 817 |
corec_specs_of bs arg_Ts res_Ts (get_indices fixes) callssss lthy; |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
818 |
|
53830
ed2eb7df2aac
don't note more induction principles than there are functions + tuning
blanchet
parents:
53822
diff
changeset
|
819 |
val actual_nn = length bs; |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
820 |
val fun_names = map Binding.name_of bs; |
53830
ed2eb7df2aac
don't note more induction principles than there are functions + tuning
blanchet
parents:
53822
diff
changeset
|
821 |
val corec_specs = take actual_nn corec_specs'; (*###*) |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
822 |
|
54065 | 823 |
val has_call = exists_subterm (map (fst #>> Binding.name_of #> Free) fixes |> member (op =)); |
53831
80423b9080cf
support "of" syntax to disambiguate selector equations
panny
parents:
53830
diff
changeset
|
824 |
val eqns_data = |
54132 | 825 |
fold_map2 (co_dissect_eqn lthy seq has_call fun_names (map #ctr_specs corec_specs)) |
54065 | 826 |
(map snd specs) of_specs [] |
53831
80423b9080cf
support "of" syntax to disambiguate selector equations
panny
parents:
53830
diff
changeset
|
827 |
|> flat o fst; |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
828 |
|
53720 | 829 |
val disc_eqnss' = map_filter (try (fn Disc x => x)) eqns_data |
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
830 |
|> partition_eq ((op =) o pairself #fun_name) |
53720 | 831 |
|> fst o finds (fn (x, ({fun_name, ...} :: _)) => x = fun_name) fun_names |
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
832 |
|> map (sort ((op <) o pairself #ctr_no |> make_ord) o flat o snd); |
53720 | 833 |
val _ = disc_eqnss' |> map (fn x => |
834 |
let val d = duplicates ((op =) o pairself #ctr_no) x in null d orelse |
|
835 |
primrec_error_eqns "excess discriminator equations in definition" |
|
836 |
(maps (fn t => filter (equal (#ctr_no t) o #ctr_no) x) d |> map #user_eqn) end); |
|
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
837 |
|
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
838 |
val sel_eqnss = map_filter (try (fn Sel x => x)) eqns_data |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
839 |
|> partition_eq ((op =) o pairself #fun_name) |
53720 | 840 |
|> fst o finds (fn (x, ({fun_name, ...} :: _)) => x = fun_name) fun_names |
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
841 |
|> map (flat o snd); |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
842 |
|
53360 | 843 |
val arg_Tss = map (binder_types o snd o fst) fixes; |
53722
e176d6d3345f
generate more theorems (e.g. for types with only one constructor)
panny
parents:
53720
diff
changeset
|
844 |
val disc_eqnss = map5 mk_real_disc_eqns bs arg_Tss corec_specs sel_eqnss disc_eqnss'; |
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
845 |
val (defs, exclss') = |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
846 |
co_build_defs lthy' bs mxs has_call arg_Tss corec_specs disc_eqnss sel_eqnss; |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
847 |
|
53923 | 848 |
fun excl_tac (c, c', a) = |
54065 | 849 |
if a orelse c = c' orelse seq then |
54044
93ab44e992ae
strengthened tactic (primcorec_sel_tac) + tuning
blanchet
parents:
54030
diff
changeset
|
850 |
SOME (K (HEADGOAL (mk_primcorec_assumption_tac lthy []))) |
93ab44e992ae
strengthened tactic (primcorec_sel_tac) + tuning
blanchet
parents:
54030
diff
changeset
|
851 |
else if simple then |
93ab44e992ae
strengthened tactic (primcorec_sel_tac) + tuning
blanchet
parents:
54030
diff
changeset
|
852 |
SOME (K (auto_tac lthy)) |
93ab44e992ae
strengthened tactic (primcorec_sel_tac) + tuning
blanchet
parents:
54030
diff
changeset
|
853 |
else |
93ab44e992ae
strengthened tactic (primcorec_sel_tac) + tuning
blanchet
parents:
54030
diff
changeset
|
854 |
NONE; |
53822 | 855 |
|
53856 | 856 |
(* |
53822 | 857 |
val _ = tracing ("exclusiveness properties:\n \<cdot> " ^ |
858 |
space_implode "\n \<cdot> " (maps (map (Syntax.string_of_term lthy o snd)) exclss')); |
|
53856 | 859 |
*) |
53822 | 860 |
|
861 |
val exclss'' = exclss' |> map (map (fn (idx, t) => |
|
53923 | 862 |
(idx, (Option.map (Goal.prove lthy [] [] t) (excl_tac idx), t)))); |
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
863 |
val taut_thmss = map (map (apsnd (the o fst)) o filter (is_some o fst o snd)) exclss''; |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
864 |
val (obligation_idxss, obligationss) = exclss'' |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
865 |
|> map (map (apsnd (rpair [] o snd)) o filter (is_none o fst o snd)) |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
866 |
|> split_list o map split_list; |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
867 |
|
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
868 |
fun prove thmss' def_thms' lthy = |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
869 |
let |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
870 |
val def_thms = map (snd o snd) def_thms'; |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
871 |
|
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
872 |
val exclss' = map (op ~~) (obligation_idxss ~~ thmss'); |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
873 |
fun mk_exclsss excls n = |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
874 |
(excls, map (fn k => replicate k [TrueI] @ replicate (n - k) []) (0 upto n - 1)) |
53822 | 875 |
|-> fold (fn ((c, c', _), thm) => nth_map c (nth_map c' (K [thm]))); |
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
876 |
val exclssss = (exclss' ~~ taut_thmss |> map (op @), fun_names ~~ corec_specs) |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
877 |
|-> map2 (fn excls => fn (_, {ctr_specs, ...}) => mk_exclsss excls (length ctr_specs)); |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
878 |
|
54002 | 879 |
fun prove_disc ({ctr_specs, ...} : corec_spec) exclsss |
880 |
({fun_name, fun_T, fun_args, ctr_no, prems, ...} : co_eqn_data_disc) = |
|
53722
e176d6d3345f
generate more theorems (e.g. for types with only one constructor)
panny
parents:
53720
diff
changeset
|
881 |
if Term.aconv_untyped (#disc (nth ctr_specs ctr_no), @{term "\<lambda>x. x = x"}) then [] else |
53720 | 882 |
let |
53722
e176d6d3345f
generate more theorems (e.g. for types with only one constructor)
panny
parents:
53720
diff
changeset
|
883 |
val {disc_corec, ...} = nth ctr_specs ctr_no; |
53720 | 884 |
val k = 1 + ctr_no; |
885 |
val m = length prems; |
|
886 |
val t = |
|
887 |
list_comb (Free (fun_name, fun_T), map Bound (length fun_args - 1 downto 0)) |
|
888 |
|> curry betapply (#disc (nth ctr_specs ctr_no)) (*###*) |
|
889 |
|> HOLogic.mk_Trueprop |
|
890 |
|> curry Logic.list_implies (map HOLogic.mk_Trueprop prems) |
|
891 |
|> curry Logic.list_all (map dest_Free fun_args); |
|
892 |
in |
|
54097
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
893 |
if prems = [@{term False}] then [] else |
53720 | 894 |
mk_primcorec_disc_tac lthy def_thms disc_corec k m exclsss |
895 |
|> K |> Goal.prove lthy [] [] t |
|
896 |
|> pair (#disc (nth ctr_specs ctr_no)) |
|
897 |
|> single |
|
898 |
end; |
|
899 |
||
54002 | 900 |
fun prove_sel ({nested_maps, nested_map_idents, nested_map_comps, ctr_specs, ...} |
901 |
: corec_spec) (disc_eqns : co_eqn_data_disc list) exclsss |
|
902 |
({fun_name, fun_T, fun_args, ctr, sel, rhs_term, ...} : co_eqn_data_sel) = |
|
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
903 |
let |
53909 | 904 |
val SOME ctr_spec = find_first (equal ctr o #ctr) ctr_specs; |
53720 | 905 |
val ctr_no = find_index (equal ctr o #ctr) ctr_specs; |
54067 | 906 |
val prems = the_default (maps (s_not_conj o #prems) disc_eqns) |
53720 | 907 |
(find_first (equal ctr_no o #ctr_no) disc_eqns |> Option.map #prems); |
908 |
val sel_corec = find_index (equal sel) (#sels ctr_spec) |
|
909 |
|> nth (#sel_corecs ctr_spec); |
|
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
910 |
val k = 1 + ctr_no; |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
911 |
val m = length prems; |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
912 |
val t = |
53720 | 913 |
list_comb (Free (fun_name, fun_T), map Bound (length fun_args - 1 downto 0)) |
914 |
|> curry betapply sel |
|
915 |
|> rpair (abstract (List.rev fun_args) rhs_term) |
|
916 |
|> HOLogic.mk_Trueprop o HOLogic.mk_eq |
|
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
917 |
|> curry Logic.list_implies (map HOLogic.mk_Trueprop prems) |
53720 | 918 |
|> curry Logic.list_all (map dest_Free fun_args); |
53925 | 919 |
val (distincts, _, sel_splits, sel_split_asms) = case_thms_of_term lthy [] rhs_term; |
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
920 |
in |
53918
0fc622be0185
use new "sel_split(_asm)" to avoid giving rise to quantifiers, which would in turn require relying on injectivity
blanchet
parents:
53910
diff
changeset
|
921 |
mk_primcorec_sel_tac lthy def_thms distincts sel_splits sel_split_asms nested_maps |
53910 | 922 |
nested_map_idents nested_map_comps sel_corec k m exclsss |
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
923 |
|> K |> Goal.prove lthy [] [] t |
53720 | 924 |
|> pair sel |
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
925 |
end; |
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
926 |
|
54002 | 927 |
fun prove_ctr disc_alist sel_alist (disc_eqns : co_eqn_data_disc list) |
928 |
(sel_eqns : co_eqn_data_sel list) ({ctr, disc, sels, collapse, ...} : corec_ctr_spec) = |
|
54097
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
929 |
(* don't try to prove theorems when some sel_eqns are missing *) |
53720 | 930 |
if not (exists (equal ctr o #ctr) disc_eqns) |
53722
e176d6d3345f
generate more theorems (e.g. for types with only one constructor)
panny
parents:
53720
diff
changeset
|
931 |
andalso not (exists (equal ctr o #ctr) sel_eqns) |
54097
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
932 |
orelse |
53720 | 933 |
filter (equal ctr o #ctr) sel_eqns |
934 |
|> fst o finds ((op =) o apsnd #sel) sels |
|
935 |
|> exists (null o snd) |
|
936 |
then [] else |
|
937 |
let |
|
54097
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
938 |
val (fun_name, fun_T, fun_args, prems, maybe_rhs) = |
53722
e176d6d3345f
generate more theorems (e.g. for types with only one constructor)
panny
parents:
53720
diff
changeset
|
939 |
(find_first (equal ctr o #ctr) disc_eqns, find_first (equal ctr o #ctr) sel_eqns) |
54097
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
940 |
|>> Option.map (fn x => (#fun_name x, #fun_T x, #fun_args x, #prems x, |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
941 |
#maybe_ctr_rhs x)) |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
942 |
||> Option.map (fn x => (#fun_name x, #fun_T x, #fun_args x, [], NONE)) |
53722
e176d6d3345f
generate more theorems (e.g. for types with only one constructor)
panny
parents:
53720
diff
changeset
|
943 |
|> the o merge_options; |
53720 | 944 |
val m = length prems; |
54097
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
945 |
val t = (if is_some maybe_rhs then the maybe_rhs else |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
946 |
filter (equal ctr o #ctr) sel_eqns |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
947 |
|> fst o finds ((op =) o apsnd #sel) sels |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
948 |
|> map (snd #> (fn [x] => (List.rev (#fun_args x), #rhs_term x)) #-> abstract) |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
949 |
|> curry list_comb ctr) |
53720 | 950 |
|> curry HOLogic.mk_eq (list_comb (Free (fun_name, fun_T), |
951 |
map Bound (length fun_args - 1 downto 0))) |
|
952 |
|> HOLogic.mk_Trueprop |
|
953 |
|> curry Logic.list_implies (map HOLogic.mk_Trueprop prems) |
|
954 |
|> curry Logic.list_all (map dest_Free fun_args); |
|
53791 | 955 |
val maybe_disc_thm = AList.lookup (op =) disc_alist disc; |
956 |
val sel_thms = map snd (filter (member (op =) sels o fst) sel_alist); |
|
53720 | 957 |
in |
54097
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
958 |
if prems = [@{term False}] then [] else |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
959 |
mk_primcorec_ctr_of_dtr_tac lthy m collapse maybe_disc_thm sel_thms |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
960 |
|> K |> Goal.prove lthy [] [] t |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
961 |
|> pair ctr |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
962 |
|> single |
53876 | 963 |
end; |
53720 | 964 |
|
54098 | 965 |
fun prove_code disc_eqns sel_eqns ctr_alist {ctr_specs, ...} = |
966 |
let |
|
54097
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
967 |
val (fun_name, fun_T, fun_args, maybe_rhs) = |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
968 |
(find_first (member (op =) (map #ctr ctr_specs) o #ctr) disc_eqns, |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
969 |
find_first (member (op =) (map #ctr ctr_specs) o #ctr) sel_eqns) |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
970 |
|>> Option.map (fn x => (#fun_name x, #fun_T x, #fun_args x, #maybe_code_rhs x)) |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
971 |
||> Option.map (fn x => (#fun_name x, #fun_T x, #fun_args x, NONE)) |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
972 |
|> the o merge_options; |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
973 |
|
54120
c2f18fd05414
use Code.abort instead of undefined in auto-generated equations
panny
parents:
54106
diff
changeset
|
974 |
val lhs = list_comb (Free (fun_name, fun_T), map Bound (length fun_args - 1 downto 0)); |
54097
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
975 |
val maybe_rhs' = if is_some maybe_rhs then maybe_rhs else |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
976 |
let |
54098 | 977 |
fun prove_code_ctr {ctr, sels, ...} = |
54097
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
978 |
if not (exists (equal ctr o fst) ctr_alist) then NONE else |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
979 |
let |
54099 | 980 |
val prems = find_first (equal ctr o #ctr) disc_eqns |
981 |
|> Option.map #prems |> the_default []; |
|
54097
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
982 |
val t = |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
983 |
filter (equal ctr o #ctr) sel_eqns |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
984 |
|> fst o finds ((op =) o apsnd #sel) sels |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
985 |
|> map (snd #> (fn [x] => (List.rev (#fun_args x), #rhs_term x)) #-> abstract) |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
986 |
|> curry list_comb ctr; |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
987 |
in |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
988 |
SOME (prems, t) |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
989 |
end; |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
990 |
val maybe_ctr_conds_argss = map prove_code_ctr ctr_specs; |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
991 |
in |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
992 |
if exists is_none maybe_ctr_conds_argss then NONE else |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
993 |
fold_rev (fn SOME (prems, u) => fn t => mk_If (s_conjs prems) u t) |
54120
c2f18fd05414
use Code.abort instead of undefined in auto-generated equations
panny
parents:
54106
diff
changeset
|
994 |
maybe_ctr_conds_argss |
c2f18fd05414
use Code.abort instead of undefined in auto-generated equations
panny
parents:
54106
diff
changeset
|
995 |
(Const (@{const_name Code.abort}, @{typ String.literal} --> |
c2f18fd05414
use Code.abort instead of undefined in auto-generated equations
panny
parents:
54106
diff
changeset
|
996 |
(@{typ unit} --> body_type fun_T) --> body_type fun_T) $ |
c2f18fd05414
use Code.abort instead of undefined in auto-generated equations
panny
parents:
54106
diff
changeset
|
997 |
@{term "STR []"} $ (* FIXME *) |
c2f18fd05414
use Code.abort instead of undefined in auto-generated equations
panny
parents:
54106
diff
changeset
|
998 |
absdummy @{typ unit} (incr_boundvars 1 lhs)) |
54097
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
999 |
|> SOME |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
1000 |
end; |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
1001 |
in |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
1002 |
if is_none maybe_rhs' then [] else |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
1003 |
let |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
1004 |
val rhs = the maybe_rhs'; |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
1005 |
val bound_Ts = List.rev (map fastype_of fun_args); |
54133 | 1006 |
val ctr_thms = map snd ctr_alist; |
54097
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
1007 |
val ms = map (Logic.count_prems o prop_of) ctr_thms; |
54133 | 1008 |
val t = HOLogic.mk_eq (lhs, rhs) |
1009 |
|> HOLogic.mk_Trueprop |
|
1010 |
|> curry Logic.list_all (map dest_Free fun_args); |
|
54098 | 1011 |
val (distincts, discIs, sel_splits, sel_split_asms) = |
54133 | 1012 |
case_thms_of_term lthy bound_Ts rhs; |
54120
c2f18fd05414
use Code.abort instead of undefined in auto-generated equations
panny
parents:
54106
diff
changeset
|
1013 |
val _ = tracing ("code equation: " ^ Syntax.string_of_term lthy t); |
54098 | 1014 |
|
54133 | 1015 |
val code_thm = mk_primcorec_raw_code_of_ctr_tac lthy distincts discIs sel_splits |
54097
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
1016 |
sel_split_asms ms ctr_thms |
54133 | 1017 |
|> K |> Goal.prove lthy [] [] t; |
1018 |
val _ = tracing ("code theorem: " ^ Syntax.string_of_term lthy (prop_of code_thm)); |
|
54106
e5f853482006
keep temporary error handling in there until code equations are properly generated
blanchet
parents:
54102
diff
changeset
|
1019 |
in |
54133 | 1020 |
[code_thm] |
54106
e5f853482006
keep temporary error handling in there until code equations are properly generated
blanchet
parents:
54102
diff
changeset
|
1021 |
end |
e5f853482006
keep temporary error handling in there until code equations are properly generated
blanchet
parents:
54102
diff
changeset
|
1022 |
handle ERROR s => (warning s; []) (*###*) |
e5f853482006
keep temporary error handling in there until code equations are properly generated
blanchet
parents:
54102
diff
changeset
|
1023 |
end; |
54097
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
1024 |
|
53791 | 1025 |
val disc_alists = map3 (maps oo prove_disc) corec_specs exclssss disc_eqnss; |
1026 |
val sel_alists = map4 (map ooo prove_sel) corec_specs disc_eqnss exclssss sel_eqnss; |
|
1027 |
val disc_thmss = map (map snd) disc_alists; |
|
1028 |
val sel_thmss = map (map snd) sel_alists; |
|
54097
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
1029 |
|
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
1030 |
val ctr_alists = map5 (maps oooo prove_ctr) disc_alists sel_alists disc_eqnss sel_eqnss |
53744
9db52ae90009
setting the stage for safe constructor simp rules
blanchet
parents:
53743
diff
changeset
|
1031 |
(map #ctr_specs corec_specs); |
54097
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
1032 |
val ctr_thmss = map (map snd) ctr_alists; |
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
1033 |
|
92c5bd3b342d
prove user-supplied equations for ctr and code reductions, preserving "let"s, "case"s etc.;
panny
parents:
54074
diff
changeset
|
1034 |
val code_thmss = map4 prove_code disc_eqnss sel_eqnss ctr_alists corec_specs; |
53791 | 1035 |
|
54030
732b53d9b720
don't register equations of the form 'f x = ...' as simp rules, even if they are safe (noncorecursive), because they unfold too aggresively concepts users are likely to want to stay folded
blanchet
parents:
54028
diff
changeset
|
1036 |
val simp_thmss = map2 append disc_thmss sel_thmss |
53795 | 1037 |
|
53797 | 1038 |
val common_name = mk_common_name fun_names; |
1039 |
||
53791 | 1040 |
val notes = |
53830
ed2eb7df2aac
don't note more induction principles than there are functions + tuning
blanchet
parents:
53822
diff
changeset
|
1041 |
[(coinductN, map (if n2m then single else K []) coinduct_thms, []), |
54145
297d1c603999
make sure that registered code equations are actually equations
blanchet
parents:
54133
diff
changeset
|
1042 |
(codeN, code_thmss, code_nitpicksimp_attrs), |
53797 | 1043 |
(ctrN, ctr_thmss, []), |
53791 | 1044 |
(discN, disc_thmss, simp_attrs), |
53795 | 1045 |
(selN, sel_thmss, simp_attrs), |
53797 | 1046 |
(simpsN, simp_thmss, []), |
53830
ed2eb7df2aac
don't note more induction principles than there are functions + tuning
blanchet
parents:
53822
diff
changeset
|
1047 |
(strong_coinductN, map (if n2m then single else K []) strong_coinduct_thms, [])] |
53791 | 1048 |
|> maps (fn (thmN, thmss, attrs) => |
1049 |
map2 (fn fun_name => fn thms => |
|
1050 |
((Binding.qualify true fun_name (Binding.name thmN), attrs), [(thms, [])])) |
|
53830
ed2eb7df2aac
don't note more induction principles than there are functions + tuning
blanchet
parents:
53822
diff
changeset
|
1051 |
fun_names (take actual_nn thmss)) |
53791 | 1052 |
|> filter_out (null o fst o hd o snd); |
53797 | 1053 |
|
1054 |
val common_notes = |
|
53830
ed2eb7df2aac
don't note more induction principles than there are functions + tuning
blanchet
parents:
53822
diff
changeset
|
1055 |
[(coinductN, if n2m then [coinduct_thm] else [], []), |
ed2eb7df2aac
don't note more induction principles than there are functions + tuning
blanchet
parents:
53822
diff
changeset
|
1056 |
(strong_coinductN, if n2m then [strong_coinduct_thm] else [], [])] |
53797 | 1057 |
|> filter_out (null o #2) |
1058 |
|> map (fn (thmN, thms, attrs) => |
|
1059 |
((Binding.qualify true common_name (Binding.name thmN), attrs), [(thms, [])])); |
|
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
1060 |
in |
54030
732b53d9b720
don't register equations of the form 'f x = ...' as simp rules, even if they are safe (noncorecursive), because they unfold too aggresively concepts users are likely to want to stay folded
blanchet
parents:
54028
diff
changeset
|
1061 |
lthy |> Local_Theory.notes (notes @ common_notes) |> snd |
53654
8b9ea4420f81
prove simp theorems for newly generated definitions
panny
parents:
53411
diff
changeset
|
1062 |
end; |
53822 | 1063 |
|
1064 |
fun after_qed thmss' = fold_map Local_Theory.define defs #-> prove thmss'; |
|
1065 |
||
1066 |
val _ = if not simple orelse forall null obligationss then () else |
|
1067 |
primrec_error "need exclusiveness proofs - use primcorecursive instead of primcorec"; |
|
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
1068 |
in |
53822 | 1069 |
if simple then |
1070 |
lthy' |
|
1071 |
|> after_qed (map (fn [] => []) obligationss) |
|
1072 |
|> pair NONE o SOME |
|
1073 |
else |
|
1074 |
lthy' |
|
1075 |
|> Proof.theorem NONE after_qed obligationss |
|
1076 |
|> Proof.refine (Method.primitive_text I) |
|
1077 |
|> Seq.hd |
|
1078 |
|> rpair NONE o SOME |
|
1079 |
end; |
|
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
1080 |
|
53831
80423b9080cf
support "of" syntax to disambiguate selector equations
panny
parents:
53830
diff
changeset
|
1081 |
fun add_primcorec_ursive_cmd simple seq (raw_fixes, raw_specs') lthy = |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
1082 |
let |
53831
80423b9080cf
support "of" syntax to disambiguate selector equations
panny
parents:
53830
diff
changeset
|
1083 |
val (raw_specs, of_specs) = split_list raw_specs' ||> map (Option.map (Syntax.read_term lthy)); |
80423b9080cf
support "of" syntax to disambiguate selector equations
panny
parents:
53830
diff
changeset
|
1084 |
val ((fixes, specs), _) = Specification.read_spec raw_fixes raw_specs lthy; |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
1085 |
in |
53831
80423b9080cf
support "of" syntax to disambiguate selector equations
panny
parents:
53830
diff
changeset
|
1086 |
add_primcorec simple seq fixes specs of_specs lthy |
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
1087 |
handle ERROR str => primrec_error str |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
1088 |
end |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
1089 |
handle Primrec_Error (str, eqns) => |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
1090 |
if null eqns |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
1091 |
then error ("primcorec error:\n " ^ str) |
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
1092 |
else error ("primcorec error:\n " ^ str ^ "\nin\n " ^ |
53822 | 1093 |
space_implode "\n " (map (quote o Syntax.string_of_term lthy) eqns)); |
1094 |
||
1095 |
val add_primcorecursive_cmd = (the o fst) ooo add_primcorec_ursive_cmd false; |
|
1096 |
val add_primcorec_cmd = (the o snd) ooo add_primcorec_ursive_cmd true; |
|
53303
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
1097 |
|
ae49b835ca01
moved files related to "primrec_new", "primcorec", and "datatype_compat" from bitbucket co-rec repository
blanchet
parents:
diff
changeset
|
1098 |
end; |