1 (* Title: Pure/Thy/thy_load.ML |
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2 Author: Makarius |
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3 |
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4 Management of theory sources and auxiliary files. |
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5 *) |
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6 |
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7 signature THY_LOAD = |
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8 sig |
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9 val master_directory: theory -> Path.T |
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10 val imports_of: theory -> (string * Position.T) list |
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11 val thy_path: Path.T -> Path.T |
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12 val check_thy: Path.T -> string -> |
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13 {master: Path.T * SHA1.digest, text: string, theory_pos: Position.T, |
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14 imports: (string * Position.T) list, keywords: Thy_Header.keywords} |
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15 val parse_files: string -> (theory -> Token.file list) parser |
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16 val provide: Path.T * SHA1.digest -> theory -> theory |
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17 val provide_parse_files: string -> (theory -> Token.file list * theory) parser |
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18 val load_file: theory -> Path.T -> (Path.T * SHA1.digest) * string |
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19 val loaded_files: theory -> Path.T list |
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20 val loaded_files_current: theory -> bool |
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21 val begin_theory: Path.T -> Thy_Header.header -> theory list -> theory |
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22 val load_thy: bool -> (Toplevel.transition -> Time.time option) -> int -> Path.T -> |
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23 Thy_Header.header -> Position.T -> string -> theory list -> theory * (unit -> unit) * int |
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24 end; |
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25 |
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26 structure Thy_Load: THY_LOAD = |
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27 struct |
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28 |
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29 (* manage source files *) |
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30 |
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31 type files = |
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32 {master_dir: Path.T, (*master directory of theory source*) |
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33 imports: (string * Position.T) list, (*source specification of imports*) |
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34 provided: (Path.T * SHA1.digest) list}; (*source path, digest*) |
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35 |
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36 fun make_files (master_dir, imports, provided): files = |
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37 {master_dir = master_dir, imports = imports, provided = provided}; |
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38 |
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39 structure Files = Theory_Data |
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40 ( |
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41 type T = files; |
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42 val empty = make_files (Path.current, [], []); |
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43 fun extend _ = empty; |
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44 fun merge _ = empty; |
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45 ); |
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46 |
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47 fun map_files f = |
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48 Files.map (fn {master_dir, imports, provided} => |
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49 make_files (f (master_dir, imports, provided))); |
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50 |
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51 |
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52 val master_directory = #master_dir o Files.get; |
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53 val imports_of = #imports o Files.get; |
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54 |
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55 fun put_deps master_dir imports = map_files (fn _ => (master_dir, imports, [])); |
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56 |
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57 |
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58 (* theory files *) |
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59 |
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60 val thy_path = Path.ext "thy"; |
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61 |
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62 fun check_file dir file = File.check_file (File.full_path dir file); |
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63 |
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64 fun check_thy dir thy_name = |
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65 let |
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66 val path = thy_path (Path.basic thy_name); |
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67 val master_file = check_file dir path; |
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68 val text = File.read master_file; |
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69 |
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70 val {name = (name, pos), imports, keywords} = |
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71 Thy_Header.read (Path.position master_file) text; |
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72 val _ = thy_name <> name andalso |
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73 error ("Bad file name " ^ Path.print path ^ " for theory " ^ quote name ^ Position.here pos); |
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74 in |
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75 {master = (master_file, SHA1.digest text), text = text, theory_pos = pos, |
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76 imports = imports, keywords = keywords} |
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77 end; |
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78 |
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79 |
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80 (* load files *) |
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81 |
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82 fun parse_files cmd = |
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83 Scan.ahead Parse.not_eof -- Parse.path >> (fn (tok, name) => fn thy => |
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84 (case Token.get_files tok of |
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85 [] => |
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86 let |
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87 val master_dir = master_directory thy; |
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88 val pos = Token.pos_of tok; |
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89 val src_paths = Keyword.command_files cmd (Path.explode name); |
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90 in map (Command.read_file master_dir pos) src_paths end |
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91 | files => map Exn.release files)); |
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92 |
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93 fun provide (src_path, id) = |
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94 map_files (fn (master_dir, imports, provided) => |
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95 if AList.defined (op =) provided src_path then |
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96 error ("Duplicate use of source file: " ^ Path.print src_path) |
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97 else (master_dir, imports, (src_path, id) :: provided)); |
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98 |
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99 fun provide_parse_files cmd = |
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100 parse_files cmd >> (fn files => fn thy => |
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101 let |
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102 val fs = files thy; |
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103 val thy' = fold (fn {src_path, digest, ...} => provide (src_path, digest)) fs thy; |
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104 in (fs, thy') end); |
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105 |
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106 fun load_file thy src_path = |
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107 let |
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108 val full_path = check_file (master_directory thy) src_path; |
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109 val text = File.read full_path; |
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110 val id = SHA1.digest text; |
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111 in ((full_path, id), text) end; |
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112 |
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113 fun loaded_files_current thy = |
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114 #provided (Files.get thy) |> |
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115 forall (fn (src_path, id) => |
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116 (case try (load_file thy) src_path of |
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117 NONE => false |
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118 | SOME ((_, id'), _) => id = id')); |
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119 |
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120 (*Proof General legacy*) |
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121 fun loaded_files thy = |
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122 let val {master_dir, provided, ...} = Files.get thy |
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123 in map (File.full_path master_dir o #1) provided end; |
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124 |
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125 |
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126 (* load theory *) |
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127 |
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128 fun begin_theory master_dir {name, imports, keywords} parents = |
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129 Theory.begin_theory name parents |
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130 |> put_deps master_dir imports |
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131 |> fold Thy_Header.declare_keyword keywords; |
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132 |
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133 fun excursion master_dir last_timing init elements = |
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134 let |
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135 fun prepare_span span = |
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136 Thy_Syntax.span_content span |
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137 |> Command.read init master_dir [] |
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138 |> (fn tr => Toplevel.put_timing (last_timing tr) tr); |
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139 |
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140 fun element_result span_elem (st, _) = |
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141 let |
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142 val elem = Thy_Syntax.map_element prepare_span span_elem; |
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143 val (results, st') = Toplevel.element_result elem st; |
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144 val pos' = Toplevel.pos_of (Thy_Syntax.last_element elem); |
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145 in (results, (st', pos')) end; |
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146 |
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147 val (results, (end_state, end_pos)) = |
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148 fold_map element_result elements (Toplevel.toplevel, Position.none); |
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149 |
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150 val thy = Toplevel.end_theory end_pos end_state; |
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151 in (results, thy) end; |
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152 |
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153 fun load_thy document last_timing update_time master_dir header text_pos text parents = |
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154 let |
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155 val time = ! Toplevel.timing; |
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156 |
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157 val {name = (name, _), ...} = header; |
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158 val _ = Thy_Header.define_keywords header; |
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159 |
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160 val lexs = Keyword.get_lexicons (); |
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161 val toks = Thy_Syntax.parse_tokens lexs text_pos text; |
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162 val spans = Thy_Syntax.parse_spans toks; |
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163 val elements = Thy_Syntax.parse_elements spans; |
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164 |
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165 fun init () = |
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166 begin_theory master_dir header parents |
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167 |> Present.begin_theory update_time |
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168 (fn () => HTML.html_mode (implode o map Thy_Syntax.present_span) spans); |
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169 |
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170 val _ = if time then writeln ("\n**** Starting theory " ^ quote name ^ " ****") else (); |
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171 val (results, thy) = |
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172 cond_timeit time "" (fn () => excursion master_dir last_timing init elements); |
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173 val _ = if time then writeln ("**** Finished theory " ^ quote name ^ " ****\n") else (); |
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174 |
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175 fun present () = |
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176 let |
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177 val res = filter_out (Toplevel.is_ignored o #1) (maps Toplevel.join_results results); |
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178 val ((minor, _), outer_syntax) = Outer_Syntax.get_syntax (); |
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179 in |
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180 if exists (Toplevel.is_skipped_proof o #2) res then |
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181 warning ("Cannot present theory with skipped proofs: " ^ quote name) |
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182 else |
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183 let val tex_source = |
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184 Thy_Output.present_thy minor Keyword.command_tags |
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185 (Outer_Syntax.is_markup outer_syntax) res toks |
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186 |> Buffer.content; |
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187 in if document then Present.theory_output name tex_source else () end |
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188 end; |
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189 |
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190 in (thy, present, size text) end; |
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191 |
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192 |
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193 (* antiquotations *) |
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194 |
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195 local |
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196 |
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197 fun check_path strict ctxt dir (name, pos) = |
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198 let |
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199 val _ = Context_Position.report ctxt pos Markup.language_path; |
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200 |
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201 val path = Path.append dir (Path.explode name) |
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202 handle ERROR msg => error (msg ^ Position.here pos); |
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203 |
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204 val _ = Context_Position.report ctxt pos (Markup.path (Path.smart_implode path)); |
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205 val _ = |
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206 if can Path.expand path andalso File.exists path then () |
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207 else |
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208 let |
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209 val path' = perhaps (try Path.expand) path; |
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210 val msg = "Bad file: " ^ Path.print path' ^ Position.here pos; |
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211 in |
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212 if strict then error msg |
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213 else |
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214 Context_Position.if_visible ctxt Output.report |
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215 (Markup.markup (Markup.bad |> Markup.properties (Position.properties_of pos)) msg) |
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216 end; |
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217 in path end; |
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218 |
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219 fun file_antiq strict ctxt (name, pos) = |
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220 let |
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221 val dir = master_directory (Proof_Context.theory_of ctxt); |
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222 val _ = check_path strict ctxt dir (name, pos); |
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223 in |
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224 space_explode "/" name |
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225 |> map Thy_Output.verb_text |
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226 |> space_implode (Thy_Output.verb_text "/" ^ "\\discretionary{}{}{}") |
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227 end; |
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228 |
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229 in |
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230 |
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231 val _ = Theory.setup |
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232 (Thy_Output.antiquotation @{binding file} (Scan.lift (Parse.position Parse.path)) |
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233 (file_antiq true o #context) #> |
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234 Thy_Output.antiquotation @{binding file_unchecked} (Scan.lift (Parse.position Parse.path)) |
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235 (file_antiq false o #context) #> |
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236 ML_Antiquotation.value @{binding path} |
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237 (Args.context -- Scan.lift (Parse.position Parse.path) >> (fn (ctxt, arg) => |
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238 let val path = check_path true ctxt Path.current arg |
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239 in "Path.explode " ^ ML_Syntax.print_string (Path.implode path) end))); |
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240 |
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241 end; |
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242 |
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243 end; |
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