1 /**************************************************************************** 2 * * 3 * GNAT COMPILER COMPONENTS * 4 * * 5 * T Y P E S * 6 * * 7 * C Header File * 8 * * 9 * Copyright (C) 1992-2013, Free Software Foundation, Inc. * 10 * * 11 * GNAT is free software; you can redistribute it and/or modify it under * 12 * terms of the GNU General Public License as published by the Free Soft- * 13 * ware Foundation; either version 3, or (at your option) any later ver- * 14 * sion. GNAT is distributed in the hope that it will be useful, but WITH- * 15 * OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * 16 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * 17 * for more details. You should have received a copy of the GNU General * 18 * Public License distributed with GNAT; see file COPYING3. If not, go to * 19 * http://www.gnu.org/licenses for a complete copy of the license. * 20 * * 21 * GNAT was originally developed by the GNAT team at New York University. * 22 * Extensive contributions were provided by Ada Core Technologies Inc. * 23 * * 24 ****************************************************************************/ 25 26 /* This is the C file that corresponds to the Ada package spec Types. It was 27 created manually from the files types.ads and types.adb. 28 29 This package contains host independent type definitions which are used 30 throughout the compiler modules. The comments in the C version are brief 31 reminders of the purpose of each declaration. For complete documentation, 32 see the Ada version of these definitions. */ 33 34 /* Boolean Types: */ 35 36 /* Boolean type (cannot use enum, because of bit field restriction on some 37 compilers). */ 38 typedef unsigned char Boolean; 39 #define False 0 40 #define True 1 41 42 /* General Use Integer Types */ 43 44 /* Signed 32-bit integer */ 45 typedef int Int; 46 47 /* Signed 16-bit integer */ 48 typedef short Short; 49 50 /* Non-negative Int values */ 51 typedef Int Nat; 52 53 /* Positive Int values */ 54 typedef Int Pos; 55 56 /* 8-bit unsigned integer */ 57 typedef unsigned char Byte; 58 59 /* 8-Bit Character and String Types: */ 60 61 /* 8-bit character type */ 62 typedef char Char; 63 64 /* Graphic characters, as defined in ARM */ 65 typedef Char Graphic_Character; 66 67 /* Line terminator characters (LF, VT, FF, CR) */ 68 typedef Char Line_Terminator; 69 70 /* Characters with the upper bit set */ 71 typedef Char Upper_Half_Character; 72 73 /* String type built on Char (note that zero is an OK index) */ 74 typedef Char *Str; 75 76 /* Pointer to string of Chars */ 77 typedef Char *Str_Ptr; 78 79 /* Types for the fat pointer used for strings and the template it points to. 80 The fat pointer is conceptually a couple of pointers, but it is wrapped 81 up in a special record type. On the Ada side, the record is naturally 82 aligned (i.e. given pointer alignment) on regular platforms, but it is 83 given twice this alignment on strict-alignment platforms for performance 84 reasons. On the C side, for the sake of portability and simplicity, we 85 overalign it on all platforms (so the machine mode is always the same as 86 on the Ada side) but arrange to pass it in an even scalar position as a 87 parameter to functions (so the scalar parameter alignment is always the 88 same as on the Ada side). */ 89 typedef struct { int Low_Bound, High_Bound; } String_Template; 90 typedef struct { const char *Array; String_Template *Bounds; } 91 __attribute ((aligned (sizeof (char *) * 2))) String_Pointer; 92 93 /* Types for Node/Entity Kinds: */ 94 95 /* The reason that these are defined here in the C version, rather than in the 96 corresponding packages is that the requirement for putting bodies of 97 inlined stuff IN the C header changes the dependencies. Both sinfo.h 98 and einfo.h now reference routines defined in tree.h. 99 100 Note: these types would more naturally be defined as unsigned char, but 101 once again, the annoying restriction on bit fields for some compilers 102 bites us! */ 103 104 typedef unsigned int Node_Kind; 105 typedef unsigned int Entity_Kind; 106 107 /* Types used for Text Buffer Handling: */ 108 109 /* Type used for subscripts in text buffer. */ 110 typedef Int Text_Ptr; 111 112 /* Text buffer used to hold source file or library information file. */ 113 typedef Char *Text_Buffer; 114 115 /* Pointer to text buffer. */ 116 typedef Char *Text_Buffer_Ptr; 117 118 /* Types used for Source Input Handling: */ 119 120 /* Line number type, used for storing all line numbers. */ 121 typedef Int Line_Number_Type; 122 123 /* Column number type, used for storing all column numbers. */ 124 typedef Int Column_Number_Type; 125 126 /* Type used to store text of a source file. */ 127 typedef Text_Buffer Source_Buffer; 128 129 /* Pointer to source buffer. */ 130 typedef Text_Buffer_Ptr Source_Buffer_Ptr; 131 132 /* Type used for source location. */ 133 typedef Text_Ptr Source_Ptr; 134 135 /* Value used to indicate no source position set. */ 136 #define No_Location -1 137 138 /* Used for Sloc in all nodes in the representation of package Standard. */ 139 #define Standard_Location -2 140 141 /* Instance identifiers */ 142 typedef Nat Instance_Id; 143 144 /* Type used for union of all possible ID values covering all ranges */ 145 typedef int Union_Id; 146 147 /* Range definitions for Tree Data: */ 148 149 #define List_Low_Bound -100000000 150 #define List_High_Bound 0 151 152 #define Node_Low_Bound 0 153 #define Node_High_Bound 99999999 154 155 #define Elist_Low_Bound 100000000 156 #define Elist_High_Bound 199999999 157 158 #define Elmt_Low_Bound 200000000 159 #define Elmt_High_Bound 299999999 160 161 #define Names_Low_Bound 300000000 162 #define Names_High_Bound 399999999 163 164 #define Strings_Low_Bound 400000000 165 #define Strings_High_Bound 499999999 166 167 #define Ureal_Low_Bound 500000000 168 #define Ureal_High_Bound 599999999 169 170 #define Uint_Low_Bound 600000000 171 #define Uint_Table_Start 2000000000 172 #define Uint_High_Bound 2099999999 173 174 SUBTYPE (List_Range, Int, List_Low_Bound, List_High_Bound) 175 SUBTYPE (Node_Range, Int, Node_Low_Bound, Node_High_Bound) 176 SUBTYPE (Elist_Range, Int, Elist_Low_Bound, Elist_High_Bound) 177 SUBTYPE (Elmt_Range, Int, Elmt_Low_Bound, Elmt_High_Bound) 178 SUBTYPE (Names_Range, Int, Names_Low_Bound, Names_High_Bound) 179 SUBTYPE (Strings_Range, Int, Strings_Low_Bound, Strings_High_Bound) 180 SUBTYPE (Uint_Range, Int, Uint_Low_Bound, Uint_High_Bound) 181 SUBTYPE (Ureal_Range, Int, Ureal_Low_Bound, Ureal_High_Bound) 182 183 /* Types for Names_Table Package: */ 184 185 typedef Int Name_Id; 186 187 /* Name_Id value for no name present. */ 188 #define No_Name Names_Low_Bound 189 190 /* Name_Id value for bad name. */ 191 #define Error_Name (Names_Low_Bound + 1) 192 193 /* First subscript of names table. */ 194 #define First_Name_Id (Names_Low_Bound + 2) 195 196 /* Types for Tree Package: */ 197 198 /* Subscript of nodes table entry. */ 199 typedef Int Node_Id; 200 201 /* Used in semantics for Node_Id value referencing an entity. */ 202 typedef Node_Id Entity_Id; 203 204 /* Null node. */ 205 #define Empty 0 206 207 /* Error node. */ 208 #define Error 1 209 210 /* Subscript of first allocated node. */ 211 #define First_Node_Id Empty 212 213 /* Subscript of entry in lists table. */ 214 typedef Int List_Id; 215 216 /* Indicates absence of a list. */ 217 #define No_List 0 218 219 /* Error list. */ 220 #define Error_List List_Low_Bound 221 222 /* Subscript of first allocated list header. */ 223 #define First_List_Id Error_List 224 225 /* Element list Id, subscript value of entry in lists table. */ 226 typedef Int Elist_Id; 227 228 /* Used to indicate absence of an element list. */ 229 #define No_Elist Elist_Low_Bound 230 231 /* Subscript of first allocated elist header */ 232 #define First_Elist_Id (No_Elist + 1) 233 234 /* Element Id, subscript value of entry in elements table. */ 235 typedef Int Elmt_Id; 236 237 /* Used to indicate absence of a list element. */ 238 #define No_Elmt Elmt_Low_Bound 239 240 /* Subscript of first allocated element */ 241 #define First_Elmt_Id (No_Elmt + 1) 242 243 /* Types for String_Table Package: */ 244 245 /* Subscript of strings table entry. */ 246 typedef Int String_Id; 247 248 /* Used to indicate missing string Id. */ 249 #define No_String Strings_Low_Bound 250 251 /* Subscript of first entry in strings table. */ 252 #define First_String_Id (No_String + 1) 253 254 /* Types for Uint_Support Package: */ 255 256 /* Type used for representation of universal integers. */ 257 typedef Int Uint; 258 259 /* Used to indicate missing Uint value. */ 260 #define No_Uint Uint_Low_Bound 261 262 /* Base value used to represent Uint values. */ 263 #define Base 32768 264 265 /* Minimum and maximum integers directly representable as Uint values */ 266 #define Min_Direct (-(Base - 1)) 267 #define Max_Direct ((Base - 1) * (Base - 1)) 268 269 #define Uint_Direct_Bias (Uint_Low_Bound + Base) 270 #define Uint_Direct_First (Uint_Direct_Bias + Min_Direct) 271 #define Uint_Direct_Last (Uint_Direct_Bias + Max_Direct) 272 273 /* Define range of direct biased values */ 274 SUBTYPE (Uint_Direct, Uint, Uint_Direct_First, Uint_Direct_Last) 275 276 /* Constants in Uint format. */ 277 #define Uint_0 (Uint_Direct_Bias + 0) 278 #define Uint_1 (Uint_Direct_Bias + 1) 279 #define Uint_2 (Uint_Direct_Bias + 2) 280 #define Uint_10 (Uint_Direct_Bias + 10) 281 #define Uint_16 (Uint_Direct_Bias + 16) 282 283 /* Types for Ureal_Support Package: */ 284 285 /* Type used for representation of universal reals. */ 286 typedef Int Ureal; 287 288 /* Used to indicate missing Uint value. */ 289 #define No_Ureal Ureal_Low_Bound 290 291 /* Subscript of first entry in Ureal table. */ 292 #define Ureal_First_Entry (No_Ureal + 1) 293 294 /* Character Code Type: */ 295 296 /* Character code value, intended to be 32 bits. */ 297 typedef unsigned Char_Code; 298 299 /* Types Used for Library Management: */ 300 301 /* Unit number. */ 302 typedef Int Unit_Number_Type; 303 304 /* Unit number value for main unit. */ 305 #define Main_Unit 0 306 307 /* Type used for lines table. */ 308 typedef Source_Ptr *Lines_Table_Type; 309 310 /* Type used for pointer to lines table. */ 311 typedef Source_Ptr *Lines_Table_Ptr; 312 313 /* Length of time stamp value. */ 314 #define Time_Stamp_Length 22 315 316 /* Type used to represent time stamp. */ 317 typedef Char *Time_Stamp_Type; 318 319 /* Name_Id synonym used for file names. */ 320 typedef Name_Id File_Name_Type; 321 322 /* Constant used to indicate no file found. */ 323 #define No_File No_Name 324 325 /* Name_Id synonym used for unit names. */ 326 typedef Name_Id Unit_Name_Type; 327 328 /* Definitions for mechanism type and values */ 329 typedef Int Mechanism_Type; 330 #define Default 0 331 #define By_Copy (-1) 332 #define By_Reference (-2) 333 #define By_Descriptor (-3) 334 #define By_Descriptor_UBS (-4) 335 #define By_Descriptor_UBSB (-5) 336 #define By_Descriptor_UBA (-6) 337 #define By_Descriptor_S (-7) 338 #define By_Descriptor_SB (-8) 339 #define By_Descriptor_A (-9) 340 #define By_Descriptor_NCA (-10) 341 #define By_Descriptor_Last (-10) 342 #define By_Short_Descriptor (-11) 343 #define By_Short_Descriptor_UBS (-12) 344 #define By_Short_Descriptor_UBSB (-13) 345 #define By_Short_Descriptor_UBA (-14) 346 #define By_Short_Descriptor_S (-15) 347 #define By_Short_Descriptor_SB (-16) 348 #define By_Short_Descriptor_A (-17) 349 #define By_Short_Descriptor_NCA (-18) 350 #define By_Short_Descriptor_Last (-18) 351 352 /* Internal to Gigi. */ 353 #define By_Copy_Return (-128) 354 355 /* Definitions of Reason codes for Raise_xxx_Error nodes */ 356 #define CE_Access_Check_Failed 0 357 #define CE_Access_Parameter_Is_Null 1 358 #define CE_Discriminant_Check_Failed 2 359 #define CE_Divide_By_Zero 3 360 #define CE_Explicit_Raise 4 361 #define CE_Index_Check_Failed 5 362 #define CE_Invalid_Data 6 363 #define CE_Length_Check_Failed 7 364 #define CE_Null_Exception_Id 8 365 #define CE_Null_Not_Allowed 9 366 #define CE_Overflow_Check_Failed 10 367 #define CE_Partition_Check_Failed 11 368 #define CE_Range_Check_Failed 12 369 #define CE_Tag_Check_Failed 13 370 371 #define PE_Access_Before_Elaboration 14 372 #define PE_Accessibility_Check_Failed 15 373 #define PE_Address_Of_Intrinsic 16 374 #define PE_Aliased_Parameters 17 375 #define PE_All_Guards_Closed 18 376 #define PE_Bad_Attribute_For_Predicate 19 377 #define PE_Current_Task_In_Entry_Body 20 378 #define PE_Duplicated_Entry_Address 21 379 #define PE_Explicit_Raise 22 380 #define PE_Finalize_Raised_Exception 23 381 #define PE_Implicit_Return 24 382 #define PE_Misaligned_Address_Value 25 383 #define PE_Missing_Return 26 384 #define PE_Overlaid_Controlled_Object 27 385 #define PE_Potentially_Blocking_Operation 28 386 #define PE_Stubbed_Subprogram_Called 29 387 #define PE_Unchecked_Union_Restriction 30 388 #define PE_Non_Transportable_Actual 31 389 390 #define SE_Empty_Storage_Pool 32 391 #define SE_Explicit_Raise 33 392 #define SE_Infinite_Recursion 34 393 #define SE_Object_Too_Large 35 394 395 #define LAST_REASON_CODE 35 396