old-autovect-branch/libstdc++-v3/include/ext/pb_assoc/detail/value_type_adapter/value_type_adapter.hpp

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2005 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 2, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING.  If not, write to the Free
  18 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  19 // USA.
  20
  21 // As a special exception, you may use this file as part of a free software
  22 // library without restriction.  Specifically, if other files instantiate
  23 // templates or use macros or inline functions from this file, or you compile
  24 // this file and link it with other files to produce an executable, this
  25 // file does not by itself cause the resulting executable to be covered by
  26 // the GNU General Public License.  This exception does not however
  27 // invalidate any other reasons why the executable file might be covered by
  28 // the GNU General Public License.
  29
  30 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
  31
  32 // Permission to use, copy, modify, sell, and distribute this software
  33 // is hereby granted without fee, provided that the above copyright
  34 // notice appears in all copies, and that both that copyright notice and
  35 // this permission notice appear in supporting documentation. None of
  36 // the above authors, nor IBM Haifa Research Laboratories, make any
  37 // representation about the suitability of this software for any
  38 // purpose. It is provided "as is" without express or implied warranty.
  39
  40 /**
  41  * @file value_type_adapter.hpp
  42  * Contains an adapter of mapping levels.
  43  */
  44
  45 #ifndef VALUE_TYPE_ADAPTER_HPP
  46 #define VALUE_TYPE_ADAPTER_HPP
  47
  48 #include <ext/pb_assoc/detail/value_type_adapter/ref_pair.hpp>
  49 #include <ext/pb_assoc/detail/assoc_cntnr_base.hpp>
  50 #include <ext/pb_assoc/detail/value_type_adapter/invalidation_guarantee_selector.hpp>
  51 #include <ext/pb_assoc/detail/type_utils.hpp>
  52 #include <utility>
  53 #include <algorithm>
  54
  55 namespace pb_assoc
  56 {
  57
  58   namespace detail
  59   {
  60
  61 #define PB_ASSOC_STATIC_ASSERT(UNIQUE, E) \
  62         typedef \
  63                 pb_assoc::detail::static_assert_dummy_class< \
  64                         sizeof(pb_assoc::detail::static_assert<(bool)(E)>)> \
  65                         UNIQUE##static_assert_type
  66
  67 #define PB_ASSOC_CLASS_T_DEC \
  68         template< \
  69                 typename Key, \
  70                 typename Data, \
  71                 class DS_Tag, \
  72                 class Policy_Tl, \
  73                 class Allocator, \
  74                 int Mapping_Level>
  75
  76 #define PB_ASSOC_CLASS_C_DEC \
  77         value_type_adapter< \
  78                 Key, \
  79                 Data, \
  80                 DS_Tag, \
  81                 Policy_Tl, \
  82                 Allocator, \
  83                 Mapping_Level>
  84
  85 #define PB_ASSOC_BASE_C_DEC \
  86         cond_type< \
  87                 Mapping_Level != 1, \
  88                 value_type_adapter< \
  89                         Key, \
  90                         Data, \
  91                         DS_Tag, \
  92                         Policy_Tl, \
  93                         Allocator, \
  94                         Mapping_Level - 1>, \
  95                 typename assoc_cntnr_base< \
  96                         Key, \
  97                         Data, \
  98                         DS_Tag, \
  99                         Policy_Tl, \
 100                         Allocator>::type>::type
 101
 102     template<typename Key,
 103              typename Data,
 104              class DS_Tag,
 105              class Policy_Tl,
 106              class Allocator,
 107              int Mapping_Level>
 108     struct value_type_adapter : public PB_ASSOC_BASE_C_DEC
 109     {
 110
 111     private:
 112       typedef typename PB_ASSOC_BASE_C_DEC my_base;
 113
 114       typedef typename my_base::data_type my_base_data_type;
 115
 116       enum
 117         {
 118           same_alloc_type =
 119           is_same_type<
 120           typename my_base::allocator::template rebind<
 121           char>::other,
 122           typename my_base_data_type::allocator::template rebind<
 123           char>::other>::value
 124         };
 125
 126       PB_ASSOC_STATIC_ASSERT(wrong_level, Mapping_Level > 0);
 127
 128       PB_ASSOC_STATIC_ASSERT(must_be_same_alloc, same_alloc_type);
 129
 130 #include <ext/pb_assoc/detail/value_type_adapter/value_type_traits.hpp>
 131 #include <ext/pb_assoc/detail/value_type_adapter/it_value_type_traits.hpp>
 132
 133       typedef
 134       it_value_type_traits_<
 135         typename base_it_key_type<
 136         my_base,
 137         Mapping_Level == 1>::type,
 138         typename my_base_data_type::const_key_reference,
 139         typename cond_type<
 140         is_same_type<
 141         typename my_base_data_type::data_type,
 142         null_data_type>::value,
 143         null_data_type,
 144         typename my_base_data_type::data_reference>::type,
 145         typename my_base_data_type::reference,
 146         typename my_base::allocator>
 147       it_value_type_traits_t;
 148
 149 #include <ext/pb_assoc/detail/value_type_adapter/iterator.hpp>
 150
 151       typedef
 152       value_type_traits_<
 153         typename my_base::key_type,
 154         typename my_base_data_type::key_type,
 155         typename my_base_data_type::data_type,
 156         typename my_base::allocator>
 157       value_type_traits_t;
 158
 159       enum
 160         {
 161           has_data =
 162           !is_same_type<
 163           typename my_base_data_type::data_type,
 164           null_data_type>::value
 165         };
 166
 167     public:
 168
 169       typedef typename Allocator::size_type size_type;
 170
 171       typedef typename Allocator::difference_type difference_type;
 172
 173       typedef typename my_base::allocator allocator;
 174
 175       typedef typename it_value_type_traits_t::key_type it_key_type;
 176
 177       typedef
 178       std::pair<
 179         typename my_base::key_type,
 180         typename my_base_data_type::key_type>
 181       key_type;
 182
 183       typedef
 184       typename allocator::template rebind<
 185         key_type>::other::reference
 186       key_reference;
 187
 188       typedef
 189       typename allocator::template rebind<
 190         key_type>::other::const_reference
 191       const_key_reference;
 192
 193       typedef
 194       typename allocator::template rebind<
 195         key_type>::other::pointer
 196       key_pointer;
 197
 198       typedef
 199       typename allocator::template rebind<
 200         key_type>::other::const_pointer
 201       const_key_pointer;
 202
 203       typedef typename my_base_data_type::data_type data_type;
 204
 205       typedef
 206       typename allocator::template rebind<
 207         data_type>::other::reference
 208       data_reference;
 209
 210       typedef
 211       typename allocator::template rebind<
 212         data_type>::other::const_reference
 213       const_data_reference;
 214
 215       typedef
 216       typename allocator::template rebind<
 217         data_type>::other::pointer
 218       data_pointer;
 219
 220       typedef
 221       typename allocator::template rebind<
 222         data_type>::other::const_pointer
 223       const_data_pointer;
 224
 225       typedef typename value_type_traits_t::value_type value_type;
 226
 227       typedef typename value_type_traits_t::reference reference;
 228
 229       typedef typename value_type_traits_t::const_reference const_reference;
 230
 231       typedef typename value_type_traits_t::pointer pointer;
 232
 233       typedef typename value_type_traits_t::const_pointer const_pointer;
 234
 235       typedef
 236       it_<
 237         typename my_base::const_find_iterator,
 238         typename my_base_data_type::const_find_iterator,
 239         has_data,
 240         true>
 241       const_find_iterator;
 242
 243       typedef
 244       it_<
 245         typename my_base::find_iterator,
 246         typename my_base_data_type::find_iterator,
 247         has_data,
 248         false>
 249       find_iterator;
 250
 251       typedef
 252       it_<
 253         typename my_base::const_iterator,
 254         typename my_base_data_type::const_iterator,
 255         has_data,
 256         true>
 257       const_iterator;
 258
 259       typedef
 260       it_<
 261         typename my_base::iterator,
 262         typename my_base_data_type::iterator,
 263         has_data,
 264         false>
 265       iterator;
 266
 267       enum
 268         {
 269           mapping_level = mapping_level_imp<
 270           typename my_base::given_data_type>::value -1
 271         };
 272
 273       // Tmp Ami rebind
 274
 275       typedef compound_ds_tag ds_category;
 276
 277       typedef
 278       typename cond_type<
 279         mapping_level == 1,
 280         typename cond_type<
 281         has_data,
 282         data_enabled_ms_tag,
 283         basic_ms_tag>::type,
 284         compound_data_enabled_ms_tag>::type
 285       ms_category;
 286
 287       typedef
 288       typename cond_type<
 289         Mapping_Level == 1,
 290         DS_Tag,
 291         compound_ds_tag>::type
 292       effective_base_ds_tag;
 293
 294       typedef ds_traits< my_base_data_type> base_data_ds_traits;
 295
 296       enum
 297         {
 298           erase_can_throw =
 299           base_data_ds_traits::erase_can_throw
 300         };
 301
 302       enum
 303         {
 304           order_preserving =
 305           order_preserving_imp<
 306           my_base,
 307           effective_base_ds_tag>::value&&
 308           base_data_ds_traits::order_preserving
 309         };
 310
 311       enum
 312         {
 313           erase_iterators =
 314           base_data_ds_traits::erase_iterators
 315         };
 316
 317       typedef
 318       typename ig_sel<
 319         typename invalidation_guarantee_imp<
 320         my_base,
 321         effective_base_ds_tag>::type,
 322         typename ds_traits<
 323         my_base_data_type>::invalidation_guarantee>::type
 324       invalidation_guarantee;
 325
 326       enum
 327         {
 328           reverse_iteration =
 329           reverse_iteration_imp<
 330           my_base,
 331           effective_base_ds_tag>::value&&
 332           base_data_ds_traits::reverse_iteration
 333         };
 334
 335       enum
 336         {
 337           split_join = false
 338         };
 339
 340     protected:
 341       typedef typename my_base_data_type::data_pointer erase_imp_ret_t;
 342
 343     private:
 344       inline const_key_reference
 345       extract_key_imp(const_reference r_val, int_to_type<true>)
 346       {
 347         return (r_val.first);
 348       }
 349
 350       inline const_key_reference
 351       extract_key_imp(const_reference r_val, int_to_type<false>)
 352       {
 353         return (r_val);
 354       }
 355
 356       inline it_key_type
 357       extract_key_imp(typename iterator::const_reference r_val, int_to_type<true>)
 358       {
 359         return (r_val.first);
 360       }
 361
 362       inline it_key_type
 363       extract_key_imp(typename iterator::const_reference r_val, int_to_type<false>)
 364       {
 365         return (r_val);
 366       }
 367
 368     public:
 369
 370       inline size_type
 371       size() const
 372       {
 373         return (std::distance(begin(), end()));
 374       }
 375
 376       inline size_type
 377       max_size() const
 378       {
 379         return (my_base::max_size());
 380       }
 381
 382       inline bool
 383       empty() const
 384       {
 385         return (size() == 0);
 386       }
 387
 388       inline static const_key_reference
 389       extract_key(const_reference r_val)
 390       {
 391         return (extract_key_imp(
 392                                 r_val,
 393                                 int_to_type<has_data>()));
 394       }
 395
 396       inline it_key_type
 397       extract_key(typename iterator::const_reference r_val)
 398       {
 399         return (extract_key_imp(
 400                                 r_val,
 401                                 int_to_type<has_data>()));
 402       }
 403
 404       inline std::pair<
 405         find_iterator,
 406         bool>
 407       insert(const_reference r_val)
 408       {
 409         typedef std::pair< typename my_base::find_iterator, bool> base_ins_ret;
 410
 411         // Tmp Ami
 412       }
 413
 414       inline data_reference
 415       operator[](const_key_reference r_key)
 416       {
 417         return (subscript_imp(r_key));
 418       }
 419
 420       inline const_find_iterator
 421       find(const_key_reference r_key) const
 422       {
 423         typename my_base::const_find_iterator it = my_base::find(r_key.first);
 424
 425         if (it == my_base::end())
 426           return (end());
 427
 428         typename my_base_data_type::const_find_iterator sec_it =
 429           it->second.find(r_key.second);
 430
 431         if (sec_it == it->second.end())
 432           return (end());
 433
 434         return (const_find_iterator(it, sec_it));
 435       }
 436
 437       inline find_iterator
 438       find(const_key_reference r_key)
 439       {
 440         typename my_base::find_iterator it = my_base::find(r_key.first);
 441
 442         if (it == my_base::end())
 443           return (end());
 444
 445         typename my_base_data_type::find_iterator sec_it =
 446           it->second.find(r_key.second);
 447
 448         if (sec_it == it->second.end())
 449           return (end());
 450
 451         return (find_iterator(it, my_base::end(), sec_it));
 452       }
 453
 454       inline const_data_reference
 455       operator[](const_key_reference r_key) const
 456       {
 457         return (my_base::operator[](r_key.first).operator[](r_key.second));
 458       }
 459
 460       inline size_type
 461       erase(const_key_reference r_key)
 462       {
 463         typename my_base::find_iterator it =
 464           my_base::find(r_key.first);
 465
 466         if (it == my_base::end())
 467           return (0);
 468
 469         if (it->second.find(r_key.second) == it->second.end())
 470           return (0);
 471
 472         it->second.erase(r_key.second);
 473
 474         return (1);
 475       }
 476
 477 #include <ext/pb_assoc/detail/value_type_adapter/erase_if_pred.hpp>
 478
 479       template<class Pred>
 480       inline size_type
 481       erase_if(Pred prd)
 482       {
 483         typename my_base::iterator it = my_base::begin();
 484
 485         typename my_base::iterator end_it = my_base::end();
 486
 487         size_type ersd = 0;
 488
 489         // Tmp Ami check erase can throw
 490
 491         while (it != end_it)
 492           {
 493             if (it->second.empty() == false)
 494               {
 495                 erase_if_pred<Pred> p(prd, it);
 496
 497                 ersd += it->second.erase_if(p);
 498               }
 499
 500             ++it;
 501           }
 502
 503         return (ersd);
 504       }
 505
 506       void
 507       clear()
 508       {
 509         typename my_base::iterator it = my_base::begin();
 510
 511         typename my_base::iterator end_it = my_base::end();
 512
 513         while (it != end_it)
 514           it->second.clear();
 515       }
 516
 517       inline const_iterator
 518       begin() const
 519       {
 520         typename my_base::const_iterator it = my_base::begin();
 521
 522         while (it != my_base::end()&&  it->second.size() == 0)
 523           ++it;
 524
 525         if (it == my_base::end())
 526           return (end());
 527
 528         return (const_iterator(it, my_base::end(), it->second.begin()));
 529       }
 530
 531       inline iterator
 532       begin()
 533       {
 534         typename my_base::iterator it = my_base::begin();
 535
 536         while (it != my_base::end()&&  it->second.size() == 0)
 537           ++it;
 538
 539         if (it == my_base::end())
 540           return (end());
 541
 542         return (iterator(it, my_base::end(), it->second.begin()));
 543       }
 544
 545       inline const_iterator
 546       end() const
 547       {
 548         return (const_iterator(my_base::end(), my_base::end()));
 549       }
 550
 551       inline iterator
 552       end()
 553       {
 554         return (iterator(my_base::end(), my_base::end()));
 555       }
 556
 557     protected:
 558
 559       virtual
 560       ~value_type_adapter()
 561       { }
 562
 563 #define PB_ASSOC_CLASS_NAME value_type_adapter
 564
 565 #define PB_ASSOC_DIRECT_BASE_C_DEC PB_ASSOC_BASE_C_DEC
 566
 567 #define PB_ASSOC_DIRECT_BASE_CAST_C_DEC \
 568         typename PB_ASSOC_DIRECT_BASE_C_DEC
 569
 570 #include <ext/pb_assoc/detail/constructors_destructor_fn_imps.hpp>
 571
 572 #undef PB_ASSOC_CLASS_NAME
 573
 574 #undef PB_ASSOC_DIRECT_BASE_C_DEC
 575
 576 #undef PB_ASSOC_DIRECT_BASE_CAST_C_DEC
 577
 578       data_reference
 579       subscript_imp(const_key_reference r_key)
 580       {
 581         return (my_base::subscript_imp(r_key.first)[r_key.second]);
 582       }
 583
 584     private:
 585       value_type_adapter&
 586       operator=(const value_type_adapter& r_other);
 587     };
 588
 589 #undef PB_ASSOC_CLASS_T_DEC
 590
 591 #undef PB_ASSOC_CLASS_C_DEC
 592
 593 #undef PB_ASSOC_BASE_C_DEC
 594
 595   } // namespace detail
 596
 597 } // namespace pb_assoc
 598
 599 #endif // #ifndef VALUE_TYPE_ADAPTER_HPP
 600