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1 (* Title: HOL/Nunchaku/Tools/nunchaku_display.ML |
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2 Author: Jasmin Blanchette, VU Amsterdam |
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3 Copyright 2015, 2016, 2017 |
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4 |
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5 Pretty printing of Isabelle/HOL models for Nunchaku. |
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6 *) |
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7 |
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8 signature NUNCHAKU_DISPLAY = |
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9 sig |
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10 type isa_model = Nunchaku_Reconstruct.isa_model |
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11 |
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12 val pretty_of_isa_model_opt: Proof.context -> isa_model option -> Pretty.T |
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13 end; |
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14 |
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15 structure Nunchaku_Display : NUNCHAKU_DISPLAY = |
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16 struct |
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17 |
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18 open Nunchaku_Util; |
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19 open Nunchaku_Reconstruct; |
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20 |
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21 val indent_size = 2; |
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22 |
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23 val pretty_indent = Pretty.indent indent_size; |
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24 |
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25 fun sorting_str_of_typ (TFree (s, _)) = "a" ^ s |
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26 | sorting_str_of_typ (Type (s, Ts)) = "b" ^ s ^ space_implode " " (map sorting_str_of_typ Ts) |
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27 | sorting_str_of_typ (TVar _) = "X"; |
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28 |
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29 fun sorting_str_of_term (Const (s, T)) = "b" ^ s ^ sorting_str_of_typ T |
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30 | sorting_str_of_term (Free (s, _)) = "a" ^ s |
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31 | sorting_str_of_term (t $ u) = sorting_str_of_term t ^ " " ^ sorting_str_of_term u |
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32 | sorting_str_of_term (Abs (_, T, t)) = "c" ^ sorting_str_of_typ T ^ " " ^ sorting_str_of_term t |
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33 | sorting_str_of_term _ = "X"; |
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34 |
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35 fun pretty_of_isa_model_opt _ NONE = |
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36 pretty_indent (Pretty.str "Model unavailable (internal error)") |
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37 | pretty_of_isa_model_opt ctxt0 |
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38 (SOME {type_model, free_model, pat_complete_model, pat_incomplete_model, skolem_model}) = |
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39 let |
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40 val ctxt = ctxt0 |> Config.put show_question_marks false; |
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41 |
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42 val pat_incomplete_model' = pat_incomplete_model |
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43 |> filter_out (can (fn Const (@{const_name unreachable}, _) => ()) o fst); |
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44 |
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45 fun pretty_of_typ_entry (T, atoms) = |
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46 Pretty.block (Pretty.breaks [Syntax.pretty_typ ctxt T, Pretty.str "=", |
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47 Pretty.enum "," "{" "}" (map (Syntax.pretty_term ctxt) atoms)]); |
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48 |
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49 fun pretty_of_term_entry (t, value) = |
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50 let |
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51 val no_types_ctxt = ctxt |> Config.put show_types false; |
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52 val schematic_ctxt = ctxt |> Proof_Context.set_mode Proof_Context.mode_schematic; |
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53 |
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54 val show_types = Config.get ctxt show_types; |
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55 val value' = value |> perhaps (try (Syntax.check_term schematic_ctxt)); |
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56 val T = fastype_of t; |
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57 val T' = if T = dummyT then try fastype_of value' |> the_default T else T; |
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58 val t' = t |> show_types ? Type.constraint T'; |
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59 in |
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60 Pretty.block (Pretty.breaks |
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61 [Syntax.pretty_term ctxt t' |
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62 |> (show_types andalso T' <> dummyT) ? (single #> Pretty.enclose "(" ")"), |
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63 Pretty.str "=", Syntax.pretty_term no_types_ctxt value']) |
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64 end; |
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65 |
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66 fun chunks_of_entries sorting_str_of pretty_of title entries = |
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67 if not (null entries) then |
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68 (if title = "" then [] else [Pretty.str (title ^ plural_s_for_list entries ^ ":")]) @ |
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69 map (pretty_indent o pretty_of) (sort_by (sorting_str_of o fst) entries) |
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70 else |
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71 []; |
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72 |
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73 val chunks = |
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74 (if null free_model then |
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75 [pretty_indent (Pretty.str "No free variables")] |
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76 else |
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77 chunks_of_entries sorting_str_of_term pretty_of_term_entry "" free_model) @ |
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78 chunks_of_entries sorting_str_of_term pretty_of_term_entry "Skolem constant" skolem_model @ |
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79 chunks_of_entries sorting_str_of_term pretty_of_term_entry "Underspecified constant" |
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80 pat_incomplete_model' @ |
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81 (if Config.get ctxt show_consts then |
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82 chunks_of_entries sorting_str_of_term pretty_of_term_entry "Fully specified constant" |
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83 pat_complete_model |
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84 else |
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85 []) @ |
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86 chunks_of_entries sorting_str_of_typ pretty_of_typ_entry "Type" type_model; |
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87 in |
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88 Pretty.chunks chunks |
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89 end; |
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90 |
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91 end; |