author | wenzelm |
Wed, 06 Aug 2008 00:10:22 +0200 | |
changeset 27751 | 22c32eb18c23 |
parent 27729 | aaf08262b177 |
child 27813 | 96fbe385a0d0 |
permissions | -rw-r--r-- |
5824 | 1 |
(* Title: Pure/Isar/method.ML |
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ID: $Id$ |
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Author: Markus Wenzel, TU Muenchen |
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Isar proof methods. |
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*) |
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signature BASIC_METHOD = |
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sig |
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val FINDGOAL: (int -> thm -> 'a Seq.seq) -> thm -> 'a Seq.seq |
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val HEADGOAL: (int -> thm -> 'a Seq.seq) -> thm -> 'a Seq.seq |
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type method |
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val trace_rules: bool ref |
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end; |
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signature METHOD = |
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sig |
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include BASIC_METHOD |
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val apply: Position.T -> (Proof.context -> method) -> Proof.context -> thm list -> cases_tactic |
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val RAW_METHOD_CASES: (thm list -> cases_tactic) -> method |
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val RAW_METHOD: (thm list -> tactic) -> method |
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val METHOD_CASES: (thm list -> cases_tactic) -> method |
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val METHOD: (thm list -> tactic) -> method |
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val fail: method |
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val succeed: method |
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val insert_tac: thm list -> int -> tactic |
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val insert: thm list -> method |
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val insert_facts: method |
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val SIMPLE_METHOD: tactic -> method |
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val SIMPLE_METHOD': (int -> tactic) -> method |
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val SIMPLE_METHOD'': ((int -> tactic) -> tactic) -> (int -> tactic) -> method |
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val defer: int option -> method |
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val prefer: int -> method |
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val cheating: bool -> Proof.context -> method |
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val intro: thm list -> method |
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val elim: thm list -> method |
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val unfold: thm list -> Proof.context -> method |
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val fold: thm list -> Proof.context -> method |
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val atomize: bool -> method |
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val this: method |
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val fact: thm list -> Proof.context -> method |
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val assumption: Proof.context -> method |
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val close: bool -> Proof.context -> method |
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val trace: Proof.context -> thm list -> unit |
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val rule_tac: thm list -> thm list -> int -> tactic |
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val some_rule_tac: thm list -> Proof.context -> thm list -> int -> tactic |
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val intros_tac: thm list -> thm list -> tactic |
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val rule: thm list -> method |
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val erule: int -> thm list -> method |
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val drule: int -> thm list -> method |
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val frule: int -> thm list -> method |
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val iprover_tac: Proof.context -> int option -> int -> tactic |
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val set_tactic: (thm list -> tactic) -> Proof.context -> Proof.context |
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val tactic: string * Position.T -> Proof.context -> method |
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val raw_tactic: string * Position.T -> Proof.context -> method |
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type src = Args.src |
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datatype text = |
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Basic of (Proof.context -> method) * Position.T | |
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Source of src | |
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Source_i of src | |
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Then of text list | |
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Orelse of text list | |
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Try of text | |
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Repeat1 of text | |
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SelectGoals of int * text |
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val primitive_text: (thm -> thm) -> text |
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val succeed_text: text |
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val default_text: text |
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val this_text: text |
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val done_text: text |
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val sorry_text: bool -> text |
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val finish_text: text option * bool -> Position.T -> text |
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val print_methods: theory -> unit |
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val intern: theory -> xstring -> string |
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val defined: theory -> string -> bool |
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val method: theory -> src -> Proof.context -> method |
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val method_i: theory -> src -> Proof.context -> method |
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val add_methods: (bstring * (src -> Proof.context -> method) * string) list |
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-> theory -> theory |
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val add_method: bstring * (src -> Proof.context -> method) * string |
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-> theory -> theory |
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val method_setup: bstring -> string * Position.T -> string -> theory -> theory |
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val syntax: (Context.generic * Args.T list -> 'a * (Context.generic * Args.T list)) |
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-> src -> Proof.context -> 'a * Proof.context |
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val simple_args: (Args.T list -> 'a * Args.T list) |
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-> ('a -> Proof.context -> method) -> src -> Proof.context -> method |
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val ctxt_args: (Proof.context -> method) -> src -> Proof.context -> method |
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val no_args: method -> src -> Proof.context -> method |
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type modifier |
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val sectioned_args: (Context.generic * Args.T list -> 'a * (Context.generic * Args.T list)) -> |
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(Args.T list -> modifier * Args.T list) list -> |
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('a -> Proof.context -> 'b) -> src -> Proof.context -> 'b |
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val bang_sectioned_args: |
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(Args.T list -> modifier * Args.T list) list -> |
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(thm list -> Proof.context -> 'a) -> src -> Proof.context -> 'a |
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val bang_sectioned_args': |
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(Args.T list -> modifier * Args.T list) list -> |
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(Context.generic * Args.T list -> 'a * (Context.generic * Args.T list)) -> |
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('a -> thm list -> Proof.context -> 'b) -> src -> Proof.context -> 'b |
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val only_sectioned_args: |
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(Args.T list -> modifier * Args.T list) list -> |
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(Proof.context -> 'a) -> src -> Proof.context -> 'a |
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val thms_ctxt_args: (thm list -> Proof.context -> 'a) -> src -> |
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Proof.context -> 'a |
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val thms_args: (thm list -> 'a) -> src -> Proof.context -> 'a |
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val thm_args: (thm -> 'a) -> src -> Proof.context -> 'a |
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val goal_args: (Args.T list -> 'a * Args.T list) -> ('a -> int -> tactic) |
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-> src -> Proof.context -> method |
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val goal_args': (Context.generic * Args.T list -> 'a * (Context.generic * Args.T list)) |
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-> ('a -> int -> tactic) -> src -> Proof.context -> method |
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val goal_args_ctxt: (Args.T list -> 'a * Args.T list) -> |
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(Proof.context -> 'a -> int -> tactic) -> src -> Proof.context -> method |
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val goal_args_ctxt': (Context.generic * Args.T list -> 'a * (Context.generic * Args.T list)) -> |
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(Proof.context -> 'a -> int -> tactic) -> src -> Proof.context -> method |
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val parse: OuterLex.token list -> text * OuterLex.token list |
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val parse_args: Args.T list -> text * Args.T list |
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end; |
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structure Method: METHOD = |
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struct |
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(** generic tools **) |
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(* goal addressing *) |
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fun FINDGOAL tac st = |
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let fun find i n = if i > n then Seq.fail else Seq.APPEND (tac i, find (i + 1) n) |
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in find 1 (Thm.nprems_of st) st end; |
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fun HEADGOAL tac = tac 1; |
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(** proof methods **) |
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(* datatype method *) |
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datatype method = Meth of thm list -> cases_tactic; |
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parents:
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fun apply pos meth_fun ctxt facts goal = Position.setmp_thread_data_seq pos |
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(fn () => let val Meth meth = meth_fun ctxt in meth facts goal end) (); |
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val RAW_METHOD_CASES = Meth; |
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fun RAW_METHOD tac = RAW_METHOD_CASES (NO_CASES o tac); |
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fun METHOD_CASES tac = RAW_METHOD_CASES (fn facts => |
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Seq.THEN (ALLGOALS Goal.conjunction_tac, tac facts)); |
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fun METHOD tac = RAW_METHOD (fn facts => ALLGOALS Goal.conjunction_tac THEN tac facts); |
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val fail = METHOD (K no_tac); |
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val succeed = METHOD (K all_tac); |
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(* insert facts *) |
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local |
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fun cut_rule_tac rule = |
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Tactic.rtac (Drule.forall_intr_vars rule COMP_INCR revcut_rl); |
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in |
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fun insert_tac [] i = all_tac |
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| insert_tac facts i = EVERY (map (fn th => cut_rule_tac th i) facts); |
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val insert_facts = METHOD (ALLGOALS o insert_tac); |
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fun insert thms = METHOD (fn _ => ALLGOALS (insert_tac thms)); |
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fun SIMPLE_METHOD tac = METHOD (fn facts => ALLGOALS (insert_tac facts) THEN tac); |
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fun SIMPLE_METHOD'' quant tac = METHOD (fn facts => quant (insert_tac facts THEN' tac)); |
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val SIMPLE_METHOD' = SIMPLE_METHOD'' HEADGOAL; |
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end; |
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(* shuffle subgoals *) |
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fun prefer i = METHOD (K (Tactic.defer_tac i THEN PRIMITIVE (Thm.permute_prems 0 ~1))); |
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fun defer opt_i = METHOD (K (Tactic.defer_tac (the_default 1 opt_i))); |
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(* cheating *) |
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fun cheating int ctxt = METHOD (K (setmp quick_and_dirty (int orelse ! quick_and_dirty) |
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(SkipProof.cheat_tac (ProofContext.theory_of ctxt)))); |
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(* unfold intro/elim rules *) |
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fun intro ths = SIMPLE_METHOD' (CHANGED_PROP o REPEAT_ALL_NEW (Tactic.match_tac ths)); |
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fun elim ths = SIMPLE_METHOD' (CHANGED_PROP o REPEAT_ALL_NEW (Tactic.ematch_tac ths)); |
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(* unfold/fold definitions *) |
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fun unfold_meth ths ctxt = SIMPLE_METHOD (CHANGED_PROP (LocalDefs.unfold_tac ctxt ths)); |
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fun fold_meth ths ctxt = SIMPLE_METHOD (CHANGED_PROP (LocalDefs.fold_tac ctxt ths)); |
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(* atomize rule statements *) |
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fun atomize false = SIMPLE_METHOD' (CHANGED_PROP o ObjectLogic.atomize_prems_tac) |
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| atomize true = RAW_METHOD (K (HEADGOAL (CHANGED_PROP o ObjectLogic.full_atomize_tac))); |
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(* this -- resolve facts directly *) |
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val this = METHOD (EVERY o map (HEADGOAL o Tactic.rtac)); |
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(* fact -- composition by facts from context *) |
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fun fact [] ctxt = SIMPLE_METHOD' (ProofContext.some_fact_tac ctxt) |
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| fact rules _ = SIMPLE_METHOD' (ProofContext.fact_tac rules); |
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(* assumption *) |
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local |
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fun cond_rtac cond rule = SUBGOAL (fn (prop, i) => |
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if cond (Logic.strip_assums_concl prop) |
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then Tactic.rtac rule i else no_tac); |
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fun legacy_tac st = |
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(legacy_feature |
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("Implicit use of prems in assumption proof" ^ Position.str_of (Position.thread_data ())); |
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all_tac st); |
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fun assm_tac ctxt = |
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assume_tac APPEND' |
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Goal.assume_rule_tac ctxt APPEND' |
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(CHANGED o solve_tac (Assumption.prems_of ctxt) THEN' K legacy_tac) APPEND' |
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cond_rtac (can Logic.dest_equals) Drule.reflexive_thm APPEND' |
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cond_rtac (can Logic.dest_term) Drule.termI; |
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17110 | 238 |
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in |
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fun assumption ctxt = METHOD (HEADGOAL o |
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(fn [] => assm_tac ctxt |
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| [fact] => solve_tac [fact] |
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| _ => K no_tac)); |
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fun close immed ctxt = METHOD (K |
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(FILTER Thm.no_prems |
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((if immed then ALLGOALS (assm_tac ctxt) else all_tac) THEN flexflex_tac))); |
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end; |
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(* rule etc. -- single-step refinements *) |
12347 | 254 |
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17110 | 255 |
val trace_rules = ref false; |
12347 | 256 |
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17110 | 257 |
fun trace ctxt rules = |
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if ! trace_rules andalso not (null rules) then |
17110 | 259 |
Pretty.big_list "rules:" (map (ProofContext.pretty_thm ctxt) rules) |
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|> Pretty.string_of |> tracing |
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else (); |
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12347 | 262 |
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local |
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fun gen_rule_tac tac rules facts = |
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(fn i => fn st => |
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if null facts then tac rules i st |
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else Seq.maps (fn rule => (tac o single) rule i st) (Drule.multi_resolves facts rules)) |
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THEN_ALL_NEW Goal.norm_hhf_tac; |
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fun gen_arule_tac tac j rules facts = |
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EVERY' (gen_rule_tac tac rules facts :: replicate j Tactic.assume_tac); |
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fun gen_some_rule_tac tac arg_rules ctxt facts = SUBGOAL (fn (goal, i) => |
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let |
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val rules = |
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if not (null arg_rules) then arg_rules |
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else flat (ContextRules.find_rules false facts goal ctxt) |
12055 | 279 |
in trace ctxt rules; tac rules facts i end); |
10309 | 280 |
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10744 | 281 |
fun meth tac x = METHOD (HEADGOAL o tac x); |
282 |
fun meth' tac x y = METHOD (HEADGOAL o tac x y); |
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|
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in |
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||
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val rule_tac = gen_rule_tac Tactic.resolve_tac; |
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val rule = meth rule_tac; |
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val some_rule_tac = gen_some_rule_tac rule_tac; |
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val some_rule = meth' some_rule_tac; |
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val erule = meth' (gen_arule_tac Tactic.eresolve_tac); |
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val drule = meth' (gen_arule_tac Tactic.dresolve_tac); |
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val frule = meth' (gen_arule_tac Tactic.forward_tac); |
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7419 | 295 |
end; |
296 |
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297 |
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(* intros_tac -- pervasive search spanned by intro rules *) |
299 |
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300 |
fun intros_tac intros facts = |
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301 |
ALLGOALS (insert_tac facts THEN' |
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REPEAT_ALL_NEW (resolve_tac intros)) |
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THEN Tactic.distinct_subgoals_tac; |
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305 |
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(* iprover -- intuitionistic proof search *) |
17110 | 307 |
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308 |
local |
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310 |
val remdups_tac = SUBGOAL (fn (g, i) => |
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let val prems = Logic.strip_assums_hyp g in |
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REPEAT_DETERM_N (length prems - length (distinct op aconv prems)) |
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(Tactic.ematch_tac [Drule.remdups_rl] i THEN Tactic.eq_assume_tac i) |
314 |
end); |
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316 |
fun REMDUPS tac = tac THEN_ALL_NEW remdups_tac; |
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318 |
val bires_tac = Tactic.biresolution_from_nets_tac ContextRules.orderlist; |
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320 |
fun safe_step_tac ctxt = |
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321 |
ContextRules.Swrap ctxt |
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322 |
(eq_assume_tac ORELSE' |
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323 |
bires_tac true (ContextRules.netpair_bang ctxt)); |
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17110 | 325 |
fun unsafe_step_tac ctxt = |
326 |
ContextRules.wrap ctxt |
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327 |
(assume_tac APPEND' |
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328 |
bires_tac false (ContextRules.netpair_bang ctxt) APPEND' |
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bires_tac false (ContextRules.netpair ctxt)); |
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331 |
fun step_tac ctxt i = |
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332 |
REPEAT_DETERM1 (REMDUPS (safe_step_tac ctxt) i) ORELSE |
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REMDUPS (unsafe_step_tac ctxt) i; |
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||
335 |
fun intprover_tac ctxt gs d lim = SUBGOAL (fn (g, i) => if d > lim then no_tac else |
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336 |
let |
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337 |
val ps = Logic.strip_assums_hyp g; |
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val c = Logic.strip_assums_concl g; |
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339 |
in |
|
18921 | 340 |
if member (fn ((ps1, c1), (ps2, c2)) => |
19307 | 341 |
c1 aconv c2 andalso |
342 |
length ps1 = length ps2 andalso |
|
343 |
gen_eq_set (op aconv) (ps1, ps2)) gs (ps, c) then no_tac |
|
17110 | 344 |
else (step_tac ctxt THEN_ALL_NEW intprover_tac ctxt ((ps, c) :: gs) (d + 1) lim) i |
345 |
end); |
|
346 |
||
347 |
in |
|
348 |
||
17587 | 349 |
fun iprover_tac ctxt opt_lim = |
18939 | 350 |
SELECT_GOAL (DEEPEN (2, the_default 20 opt_lim) (intprover_tac ctxt [] 0) 4 1); |
17110 | 351 |
|
352 |
end; |
|
8195 | 353 |
|
354 |
||
8351 | 355 |
(* ML tactics *) |
356 |
||
26472
9afdd61cf528
ml_tactic: non-critical version via proof data and thread data;
wenzelm
parents:
26463
diff
changeset
|
357 |
structure TacticData = ProofDataFun |
9afdd61cf528
ml_tactic: non-critical version via proof data and thread data;
wenzelm
parents:
26463
diff
changeset
|
358 |
( |
27235 | 359 |
type T = thm list -> tactic; |
26472
9afdd61cf528
ml_tactic: non-critical version via proof data and thread data;
wenzelm
parents:
26463
diff
changeset
|
360 |
fun init _ = undefined; |
9afdd61cf528
ml_tactic: non-critical version via proof data and thread data;
wenzelm
parents:
26463
diff
changeset
|
361 |
); |
9afdd61cf528
ml_tactic: non-critical version via proof data and thread data;
wenzelm
parents:
26463
diff
changeset
|
362 |
|
9afdd61cf528
ml_tactic: non-critical version via proof data and thread data;
wenzelm
parents:
26463
diff
changeset
|
363 |
val set_tactic = TacticData.put; |
8351 | 364 |
|
26472
9afdd61cf528
ml_tactic: non-critical version via proof data and thread data;
wenzelm
parents:
26463
diff
changeset
|
365 |
fun ml_tactic (txt, pos) ctxt = |
9afdd61cf528
ml_tactic: non-critical version via proof data and thread data;
wenzelm
parents:
26463
diff
changeset
|
366 |
let |
9afdd61cf528
ml_tactic: non-critical version via proof data and thread data;
wenzelm
parents:
26463
diff
changeset
|
367 |
val ctxt' = ctxt |> Context.proof_map |
27235 | 368 |
(ML_Context.expression pos |
369 |
"fun tactic (facts: thm list) : tactic" |
|
26472
9afdd61cf528
ml_tactic: non-critical version via proof data and thread data;
wenzelm
parents:
26463
diff
changeset
|
370 |
"Context.map_proof (Method.set_tactic tactic)" txt); |
27235 | 371 |
in Context.setmp_thread_data (SOME (Context.Proof ctxt)) (TacticData.get ctxt') end; |
23425 | 372 |
|
373 |
fun tactic txt ctxt = METHOD (ml_tactic txt ctxt); |
|
374 |
fun raw_tactic txt ctxt = RAW_METHOD (ml_tactic txt ctxt); |
|
8351 | 375 |
|
376 |
||
5824 | 377 |
|
17110 | 378 |
(** method syntax **) |
379 |
||
380 |
(* method text *) |
|
381 |
||
382 |
type src = Args.src; |
|
5824 | 383 |
|
17110 | 384 |
datatype text = |
23349 | 385 |
Basic of (Proof.context -> method) * Position.T | |
17110 | 386 |
Source of src | |
20030 | 387 |
Source_i of src | |
17110 | 388 |
Then of text list | |
389 |
Orelse of text list | |
|
390 |
Try of text | |
|
19186 | 391 |
Repeat1 of text | |
392 |
SelectGoals of int * text; |
|
17110 | 393 |
|
23349 | 394 |
fun primitive_text r = Basic (K (SIMPLE_METHOD (PRIMITIVE r)), Position.none); |
395 |
val succeed_text = Basic (K succeed, Position.none); |
|
17110 | 396 |
val default_text = Source (Args.src (("default", []), Position.none)); |
23349 | 397 |
val this_text = Basic (K this, Position.none); |
398 |
val done_text = Basic (K (SIMPLE_METHOD all_tac), Position.none); |
|
399 |
fun sorry_text int = Basic (cheating int, Position.none); |
|
17110 | 400 |
|
23349 | 401 |
fun finish_text (NONE, immed) pos = Basic (close immed, pos) |
402 |
| finish_text (SOME txt, immed) pos = Then [txt, Basic (close immed, pos)]; |
|
17110 | 403 |
|
404 |
||
405 |
(* method definitions *) |
|
5824 | 406 |
|
24116 | 407 |
structure Methods = TheoryDataFun |
22846 | 408 |
( |
20289 | 409 |
type T = (((src -> Proof.context -> method) * string) * stamp) NameSpace.table; |
16347 | 410 |
val empty = NameSpace.empty_table; |
6546 | 411 |
val copy = I; |
16448 | 412 |
val extend = I; |
23655
d2d1138e0ddc
replaced exception TableFun/GraphFun.DUPS by TableFun/GraphFun.DUP;
wenzelm
parents:
23590
diff
changeset
|
413 |
fun merge _ tables : T = NameSpace.merge_tables (eq_snd (op =)) tables handle Symtab.DUP dup => |
d2d1138e0ddc
replaced exception TableFun/GraphFun.DUPS by TableFun/GraphFun.DUP;
wenzelm
parents:
23590
diff
changeset
|
414 |
error ("Attempt to merge different versions of method " ^ quote dup); |
22846 | 415 |
); |
5824 | 416 |
|
22846 | 417 |
fun print_methods thy = |
418 |
let |
|
24116 | 419 |
val meths = Methods.get thy; |
22846 | 420 |
fun prt_meth (name, ((_, comment), _)) = Pretty.block |
421 |
[Pretty.str (name ^ ":"), Pretty.brk 2, Pretty.str comment]; |
|
422 |
in |
|
423 |
[Pretty.big_list "methods:" (map prt_meth (NameSpace.extern_table meths))] |
|
424 |
|> Pretty.chunks |> Pretty.writeln |
|
425 |
end; |
|
7611 | 426 |
|
5824 | 427 |
|
428 |
(* get methods *) |
|
429 |
||
26892 | 430 |
val intern = NameSpace.intern o #1 o Methods.get; |
431 |
val defined = Symtab.defined o #2 o Methods.get; |
|
432 |
||
20030 | 433 |
fun method_i thy = |
5824 | 434 |
let |
24116 | 435 |
val meths = #2 (Methods.get thy); |
5884 | 436 |
fun meth src = |
20030 | 437 |
let val ((name, _), pos) = Args.dest_src src in |
17412 | 438 |
(case Symtab.lookup meths name of |
15531 | 439 |
NONE => error ("Unknown proof method: " ^ quote name ^ Position.str_of pos) |
27751 | 440 |
| SOME ((mth, _), _) => (Position.report (Markup.method name) pos; mth src)) |
5824 | 441 |
end; |
442 |
in meth end; |
|
443 |
||
24116 | 444 |
fun method thy = method_i thy o Args.map_name (NameSpace.intern (#1 (Methods.get thy))); |
20030 | 445 |
|
5824 | 446 |
|
17110 | 447 |
(* add method *) |
5824 | 448 |
|
449 |
fun add_methods raw_meths thy = |
|
450 |
let |
|
16145 | 451 |
val new_meths = raw_meths |> map (fn (name, f, comment) => |
16347 | 452 |
(name, ((f, comment), stamp ()))); |
5824 | 453 |
|
23086 | 454 |
fun add meths = NameSpace.extend_table (Sign.naming_of thy) new_meths meths |
23655
d2d1138e0ddc
replaced exception TableFun/GraphFun.DUPS by TableFun/GraphFun.DUP;
wenzelm
parents:
23590
diff
changeset
|
455 |
handle Symtab.DUP dup => error ("Duplicate declaration of method " ^ quote dup); |
24116 | 456 |
in Methods.map add thy end; |
5824 | 457 |
|
9194 | 458 |
val add_method = add_methods o Library.single; |
459 |
||
5824 | 460 |
|
17356
09afdf37cdb3
added cheating, sorry_text (from skip_proofs.ML);
wenzelm
parents:
17314
diff
changeset
|
461 |
(* method_setup *) |
09afdf37cdb3
added cheating, sorry_text (from skip_proofs.ML);
wenzelm
parents:
17314
diff
changeset
|
462 |
|
26385
ae7564661e76
ML runtime compilation: pass position, tuned signature;
wenzelm
parents:
26291
diff
changeset
|
463 |
fun method_setup name (txt, pos) cmt = |
26472
9afdd61cf528
ml_tactic: non-critical version via proof data and thread data;
wenzelm
parents:
26463
diff
changeset
|
464 |
Context.theory_map (ML_Context.expression pos |
22118 | 465 |
"val method: bstring * (Method.src -> Proof.context -> Proof.method) * string" |
22086 | 466 |
"Context.map_theory (Method.add_method method)" |
26472
9afdd61cf528
ml_tactic: non-critical version via proof data and thread data;
wenzelm
parents:
26463
diff
changeset
|
467 |
("(" ^ quote name ^ ", " ^ txt ^ ", " ^ quote cmt ^ ")")); |
17356
09afdf37cdb3
added cheating, sorry_text (from skip_proofs.ML);
wenzelm
parents:
17314
diff
changeset
|
468 |
|
09afdf37cdb3
added cheating, sorry_text (from skip_proofs.ML);
wenzelm
parents:
17314
diff
changeset
|
469 |
|
5884 | 470 |
|
17110 | 471 |
(** concrete syntax **) |
5824 | 472 |
|
5884 | 473 |
(* basic *) |
474 |
||
18999 | 475 |
fun syntax scan = Args.context_syntax "method" scan; |
5824 | 476 |
|
17110 | 477 |
fun simple_args scan f src ctxt : method = |
21879 | 478 |
fst (syntax (Scan.lift (scan >> (fn x => f x ctxt))) src ctxt); |
8351 | 479 |
|
20289 | 480 |
fun ctxt_args (f: Proof.context -> method) src ctxt = |
21879 | 481 |
fst (syntax (Scan.succeed (f ctxt)) src ctxt); |
7555 | 482 |
|
483 |
fun no_args m = ctxt_args (K m); |
|
5884 | 484 |
|
485 |
||
486 |
(* sections *) |
|
5824 | 487 |
|
20289 | 488 |
type modifier = (Proof.context -> Proof.context) * attribute; |
7268 | 489 |
|
490 |
local |
|
491 |
||
24010
2ef318813e1a
method section scanners: added [[declaration]] syntax, ignore sid-effects of thms;
wenzelm
parents:
23937
diff
changeset
|
492 |
fun thms ss = Scan.repeat (Scan.unless (Scan.lift (Scan.first ss)) Attrib.multi_thm) >> flat; |
19186 | 493 |
fun app (f, att) (context, ths) = foldl_map att (Context.map_proof f context, ths); |
5824 | 494 |
|
24022 | 495 |
fun section ss = Scan.depend (fn context => (Scan.first ss -- Scan.pass context (thms ss)) :|-- |
496 |
(fn (m, ths) => Scan.succeed (app m (context, ths)))); |
|
5884 | 497 |
|
7601 | 498 |
fun sectioned args ss = args -- Scan.repeat (section ss); |
5884 | 499 |
|
7268 | 500 |
in |
5824 | 501 |
|
5884 | 502 |
fun sectioned_args args ss f src ctxt = |
21879 | 503 |
let val ((x, _), ctxt') = syntax (sectioned args ss) src ctxt |
5921 | 504 |
in f x ctxt' end; |
5884 | 505 |
|
7601 | 506 |
fun bang_sectioned_args ss f = sectioned_args Args.bang_facts ss f; |
9777 | 507 |
fun bang_sectioned_args' ss scan f = |
508 |
sectioned_args (Args.bang_facts -- scan >> swap) ss (uncurry f); |
|
7601 | 509 |
fun only_sectioned_args ss f = sectioned_args (Scan.succeed ()) ss (fn () => f); |
7268 | 510 |
|
18999 | 511 |
fun thms_ctxt_args f = sectioned_args (thms []) [] f; |
8093 | 512 |
fun thms_args f = thms_ctxt_args (K o f); |
9706 | 513 |
fun thm_args f = thms_args (fn [thm] => f thm | _ => error "Single theorem expected"); |
5824 | 514 |
|
7268 | 515 |
end; |
516 |
||
5824 | 517 |
|
17587 | 518 |
(* iprover syntax *) |
12347 | 519 |
|
520 |
local |
|
521 |
||
522 |
val introN = "intro"; |
|
523 |
val elimN = "elim"; |
|
524 |
val destN = "dest"; |
|
525 |
val ruleN = "rule"; |
|
526 |
||
527 |
fun modifier name kind kind' att = |
|
15531 | 528 |
Args.$$$ name |-- (kind >> K NONE || kind' |-- Args.nat --| Args.colon >> SOME) |
20289 | 529 |
>> (pair (I: Proof.context -> Proof.context) o att); |
12347 | 530 |
|
17587 | 531 |
val iprover_modifiers = |
18728 | 532 |
[modifier destN Args.bang_colon Args.bang ContextRules.dest_bang, |
533 |
modifier destN Args.colon (Scan.succeed ()) ContextRules.dest, |
|
534 |
modifier elimN Args.bang_colon Args.bang ContextRules.elim_bang, |
|
535 |
modifier elimN Args.colon (Scan.succeed ()) ContextRules.elim, |
|
536 |
modifier introN Args.bang_colon Args.bang ContextRules.intro_bang, |
|
537 |
modifier introN Args.colon (Scan.succeed ()) ContextRules.intro, |
|
538 |
Args.del -- Args.colon >> K (I, ContextRules.rule_del)]; |
|
12347 | 539 |
|
540 |
in |
|
541 |
||
18640 | 542 |
val iprover_meth = |
543 |
bang_sectioned_args' iprover_modifiers (Scan.lift (Scan.option Args.nat)) |
|
544 |
(fn n => fn prems => fn ctxt => METHOD (fn facts => |
|
545 |
HEADGOAL (insert_tac (prems @ facts) THEN' |
|
23590
ad95084a5c63
renamed ObjectLogic.atomize_tac to ObjectLogic.atomize_prems_tac;
wenzelm
parents:
23577
diff
changeset
|
546 |
ObjectLogic.atomize_prems_tac THEN' iprover_tac ctxt n))); |
12347 | 547 |
|
548 |
end; |
|
549 |
||
550 |
||
9539 | 551 |
(* tactic syntax *) |
8238 | 552 |
|
10744 | 553 |
fun nat_thms_args f = uncurry f oo |
21879 | 554 |
(fst oo syntax (Scan.lift (Scan.optional (Args.parens Args.nat) 0) -- Attrib.thms)); |
10744 | 555 |
|
21879 | 556 |
fun goal_args' args tac src ctxt = fst (syntax (Args.goal_spec HEADGOAL -- args >> |
21592 | 557 |
(fn (quant, s) => SIMPLE_METHOD'' quant (tac s))) src ctxt); |
8537 | 558 |
|
9539 | 559 |
fun goal_args args tac = goal_args' (Scan.lift args) tac; |
8238 | 560 |
|
14174
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
561 |
fun goal_args_ctxt' args tac src ctxt = |
21879 | 562 |
fst (syntax (Args.goal_spec HEADGOAL -- args >> |
21592 | 563 |
(fn (quant, s) => SIMPLE_METHOD'' quant (tac ctxt s))) src ctxt); |
8238 | 564 |
|
14174
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
565 |
fun goal_args_ctxt args tac = goal_args_ctxt' (Scan.lift args) tac; |
5824 | 566 |
|
14718 | 567 |
|
18708 | 568 |
(* theory setup *) |
5824 | 569 |
|
26463 | 570 |
val _ = Context.>> (Context.map_theory |
571 |
(add_methods |
|
572 |
[("fail", no_args fail, "force failure"), |
|
573 |
("succeed", no_args succeed, "succeed"), |
|
574 |
("-", no_args insert_facts, "do nothing (insert current facts only)"), |
|
575 |
("insert", thms_args insert, "insert theorems, ignoring facts (improper)"), |
|
576 |
("intro", thms_args intro, "repeatedly apply introduction rules"), |
|
577 |
("elim", thms_args elim, "repeatedly apply elimination rules"), |
|
578 |
("unfold", thms_ctxt_args unfold_meth, "unfold definitions"), |
|
579 |
("fold", thms_ctxt_args fold_meth, "fold definitions"), |
|
580 |
("atomize", (atomize o fst) oo syntax (Args.mode "full"), |
|
581 |
"present local premises as object-level statements"), |
|
582 |
("iprover", iprover_meth, "intuitionistic proof search"), |
|
583 |
("rule", thms_ctxt_args some_rule, "apply some intro/elim rule"), |
|
584 |
("erule", nat_thms_args erule, "apply rule in elimination manner (improper)"), |
|
585 |
("drule", nat_thms_args drule, "apply rule in destruct manner (improper)"), |
|
586 |
("frule", nat_thms_args frule, "apply rule in forward manner (improper)"), |
|
587 |
("this", no_args this, "apply current facts as rules"), |
|
588 |
("fact", thms_ctxt_args fact, "composition by facts from context"), |
|
589 |
("assumption", ctxt_args assumption, "proof by assumption, preferring facts"), |
|
27244 | 590 |
("rename_tac", goal_args (Scan.repeat1 Args.name) Tactic.rename_tac, |
26463 | 591 |
"rename parameters of goal"), |
592 |
("rotate_tac", goal_args (Scan.optional Args.int 1) Tactic.rotate_tac, |
|
593 |
"rotate assumptions of goal"), |
|
594 |
("tactic", simple_args (Args.position Args.name) tactic, "ML tactic as proof method"), |
|
595 |
("raw_tactic", simple_args (Args.position Args.name) raw_tactic, |
|
596 |
"ML tactic as raw proof method")])); |
|
5824 | 597 |
|
598 |
||
22118 | 599 |
(* outer parser *) |
600 |
||
601 |
structure T = OuterLex; |
|
602 |
structure P = OuterParse; |
|
603 |
||
604 |
fun is_symid_meth s = |
|
605 |
s <> "|" andalso s <> "?" andalso s <> "+" andalso T.is_sid s; |
|
606 |
||
27383
cbb4dafea38a
replaced simple_text by fully-featured parse_args;
wenzelm
parents:
27244
diff
changeset
|
607 |
local |
cbb4dafea38a
replaced simple_text by fully-featured parse_args;
wenzelm
parents:
27244
diff
changeset
|
608 |
|
22118 | 609 |
fun meth4 x = |
610 |
(P.position (P.xname >> rpair []) >> (Source o Args.src) || |
|
611 |
P.$$$ "(" |-- P.!!! (meth0 --| P.$$$ ")")) x |
|
612 |
and meth3 x = |
|
613 |
(meth4 --| P.$$$ "?" >> Try || |
|
614 |
meth4 --| P.$$$ "+" >> Repeat1 || |
|
615 |
meth4 -- (P.$$$ "[" |-- Scan.optional P.nat 1 --| P.$$$ "]") >> (SelectGoals o swap) || |
|
616 |
meth4) x |
|
617 |
and meth2 x = |
|
27383
cbb4dafea38a
replaced simple_text by fully-featured parse_args;
wenzelm
parents:
27244
diff
changeset
|
618 |
(P.position (P.xname -- P.generic_args1 is_symid_meth) >> (Source o Args.src) || |
22118 | 619 |
meth3) x |
620 |
and meth1 x = (P.enum1 "," meth2 >> (fn [m] => m | ms => Then ms)) x |
|
621 |
and meth0 x = (P.enum1 "|" meth1 >> (fn [m] => m | ms => Orelse ms)) x; |
|
622 |
||
623 |
in val parse = meth3 end; |
|
624 |
||
625 |
||
27383
cbb4dafea38a
replaced simple_text by fully-featured parse_args;
wenzelm
parents:
27244
diff
changeset
|
626 |
(* args parser *) |
cbb4dafea38a
replaced simple_text by fully-featured parse_args;
wenzelm
parents:
27244
diff
changeset
|
627 |
|
cbb4dafea38a
replaced simple_text by fully-featured parse_args;
wenzelm
parents:
27244
diff
changeset
|
628 |
local |
cbb4dafea38a
replaced simple_text by fully-featured parse_args;
wenzelm
parents:
27244
diff
changeset
|
629 |
|
cbb4dafea38a
replaced simple_text by fully-featured parse_args;
wenzelm
parents:
27244
diff
changeset
|
630 |
fun enum1 sep scan = scan ::: Scan.repeat (Args.$$$ sep |-- scan); |
cbb4dafea38a
replaced simple_text by fully-featured parse_args;
wenzelm
parents:
27244
diff
changeset
|
631 |
|
cbb4dafea38a
replaced simple_text by fully-featured parse_args;
wenzelm
parents:
27244
diff
changeset
|
632 |
fun meth4 x = |
cbb4dafea38a
replaced simple_text by fully-featured parse_args;
wenzelm
parents:
27244
diff
changeset
|
633 |
(Args.position (Args.name >> rpair []) >> (Source o Args.src) || |
cbb4dafea38a
replaced simple_text by fully-featured parse_args;
wenzelm
parents:
27244
diff
changeset
|
634 |
Args.$$$ "(" |-- Args.!!! (meth0 --| Args.$$$ ")")) x |
cbb4dafea38a
replaced simple_text by fully-featured parse_args;
wenzelm
parents:
27244
diff
changeset
|
635 |
and meth3 x = |
cbb4dafea38a
replaced simple_text by fully-featured parse_args;
wenzelm
parents:
27244
diff
changeset
|
636 |
(meth4 --| Args.$$$ "?" >> Try || |
cbb4dafea38a
replaced simple_text by fully-featured parse_args;
wenzelm
parents:
27244
diff
changeset
|
637 |
meth4 --| Args.$$$ "+" >> Repeat1 || |
cbb4dafea38a
replaced simple_text by fully-featured parse_args;
wenzelm
parents:
27244
diff
changeset
|
638 |
meth4 -- (Args.$$$ "[" |-- Scan.optional Args.nat 1 --| Args.$$$ "]") >> (SelectGoals o swap) || |
cbb4dafea38a
replaced simple_text by fully-featured parse_args;
wenzelm
parents:
27244
diff
changeset
|
639 |
meth4) x |
cbb4dafea38a
replaced simple_text by fully-featured parse_args;
wenzelm
parents:
27244
diff
changeset
|
640 |
and meth2 x = |
cbb4dafea38a
replaced simple_text by fully-featured parse_args;
wenzelm
parents:
27244
diff
changeset
|
641 |
(Args.position (Args.name -- Args.generic_args1 is_symid_meth) >> (Source o Args.src) || |
cbb4dafea38a
replaced simple_text by fully-featured parse_args;
wenzelm
parents:
27244
diff
changeset
|
642 |
meth3) x |
cbb4dafea38a
replaced simple_text by fully-featured parse_args;
wenzelm
parents:
27244
diff
changeset
|
643 |
and meth1 x = (enum1 "," meth2 >> (fn [m] => m | ms => Then ms)) x |
cbb4dafea38a
replaced simple_text by fully-featured parse_args;
wenzelm
parents:
27244
diff
changeset
|
644 |
and meth0 x = (enum1 "|" meth1 >> (fn [m] => m | ms => Orelse ms)) x; |
cbb4dafea38a
replaced simple_text by fully-featured parse_args;
wenzelm
parents:
27244
diff
changeset
|
645 |
|
cbb4dafea38a
replaced simple_text by fully-featured parse_args;
wenzelm
parents:
27244
diff
changeset
|
646 |
in val parse_args = meth3 end; |
cbb4dafea38a
replaced simple_text by fully-featured parse_args;
wenzelm
parents:
27244
diff
changeset
|
647 |
|
cbb4dafea38a
replaced simple_text by fully-featured parse_args;
wenzelm
parents:
27244
diff
changeset
|
648 |
|
16145 | 649 |
(*final declarations of this structure!*) |
650 |
val unfold = unfold_meth; |
|
651 |
val fold = fold_meth; |
|
652 |
||
5824 | 653 |
end; |
654 |
||
655 |
structure BasicMethod: BASIC_METHOD = Method; |
|
656 |
open BasicMethod; |