LLDB  mainline
NSArray.cpp
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1 //===-- NSArray.cpp -------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #include "clang/AST/ASTContext.h"
10 #include "clang/Basic/TargetInfo.h"
11 
12 #include "Cocoa.h"
13 
16 
17 #include "lldb/Core/ValueObject.h"
21 #include "lldb/Target/Language.h"
22 #include "lldb/Target/Target.h"
24 #include "lldb/Utility/Endian.h"
25 #include "lldb/Utility/Status.h"
26 #include "lldb/Utility/Stream.h"
27 
28 using namespace lldb;
29 using namespace lldb_private;
30 using namespace lldb_private::formatters;
31 
32 namespace lldb_private {
33 namespace formatters {
34 std::map<ConstString, CXXFunctionSummaryFormat::Callback> &
35 NSArray_Additionals::GetAdditionalSummaries() {
36  static std::map<ConstString, CXXFunctionSummaryFormat::Callback> g_map;
37  return g_map;
38 }
39 
40 std::map<ConstString, CXXSyntheticChildren::CreateFrontEndCallback> &
41 NSArray_Additionals::GetAdditionalSynthetics() {
42  static std::map<ConstString, CXXSyntheticChildren::CreateFrontEndCallback>
43  g_map;
44  return g_map;
45 }
46 
48 public:
49  NSArrayMSyntheticFrontEndBase(lldb::ValueObjectSP valobj_sp);
50 
51  ~NSArrayMSyntheticFrontEndBase() override = default;
52 
53  size_t CalculateNumChildren() override;
54 
55  lldb::ValueObjectSP GetChildAtIndex(size_t idx) override;
56 
57  bool Update() override = 0;
58 
59  bool MightHaveChildren() override;
60 
61  size_t GetIndexOfChildWithName(ConstString name) override;
62 
63 protected:
64  virtual lldb::addr_t GetDataAddress() = 0;
65 
66  virtual uint64_t GetUsedCount() = 0;
67 
68  virtual uint64_t GetOffset() = 0;
69 
70  virtual uint64_t GetSize() = 0;
71 
73  uint8_t m_ptr_size = 8;
75 };
76 
77 template <typename D32, typename D64>
79 public:
80  GenericNSArrayMSyntheticFrontEnd(lldb::ValueObjectSP valobj_sp);
81 
83 
84  bool Update() override;
85 
86 protected:
87  lldb::addr_t GetDataAddress() override;
88 
89  uint64_t GetUsedCount() override;
90 
91  uint64_t GetOffset() override;
92 
93  uint64_t GetSize() override;
94 
95 private:
96  D32 *m_data_32;
97  D64 *m_data_64;
98 };
99 
100 namespace Foundation1010 {
101  namespace {
102  struct DataDescriptor_32 {
106  uint64_t _priv1 : 4;
109  };
110 
111  struct DataDescriptor_64 {
112  uint64_t _used;
113  uint64_t _offset;
114  uint64_t _size : 60;
115  uint64_t _priv1 : 4;
117  uint64_t _data;
118  };
119  }
120 
123 }
124 
125 namespace Foundation1428 {
126  namespace {
127  struct DataDescriptor_32 {
128  uint32_t _used;
130  uint32_t _size;
131  uint32_t _data;
132  };
133 
134  struct DataDescriptor_64 {
135  uint64_t _used;
136  uint64_t _offset;
137  uint64_t _size;
138  uint64_t _data;
139  };
140  }
141 
144 }
145 
146 namespace Foundation1437 {
147  template <typename PtrType>
148  struct DataDescriptor {
149  PtrType _cow;
150  // __deque
151  PtrType _data;
156  };
157 
161 
162  template <typename DD>
163  uint64_t
165  lldb::addr_t valobj_addr, Status &error) {
166  const lldb::addr_t start_of_descriptor =
167  valobj_addr + process.GetAddressByteSize();
168  DD descriptor = DD();
169  process.ReadMemory(start_of_descriptor, &descriptor,
170  sizeof(descriptor), error);
171  if (error.Fail()) {
172  return 0;
173  }
174  return descriptor._used;
175  }
176 
177  uint64_t
179  Status &error) {
180  if (process.GetAddressByteSize() == 4) {
181  return __NSArrayMSize_Impl<DataDescriptor<uint32_t>>(process, valobj_addr,
182  error);
183  } else {
184  return __NSArrayMSize_Impl<DataDescriptor<uint64_t>>(process, valobj_addr,
185  error);
186  }
187  }
188 
189 }
190 
191 namespace CallStackArray {
196  const uint32_t _size = 0;
197 };
198 
200  uint64_t _data;
201  uint64_t _used;
202  uint64_t _offset;
203  const uint64_t _size = 0;
204 };
205 
208 } // namespace CallStackArray
209 
210 template <typename D32, typename D64, bool Inline>
212 public:
213  GenericNSArrayISyntheticFrontEnd(lldb::ValueObjectSP valobj_sp);
214 
216 
217  size_t CalculateNumChildren() override;
218 
219  lldb::ValueObjectSP GetChildAtIndex(size_t idx) override;
220 
221  bool Update() override;
222 
223  bool MightHaveChildren() override;
224 
225  size_t GetIndexOfChildWithName(ConstString name) override;
226 
227 private:
229  uint8_t m_ptr_size = 8;
230 
231  D32 *m_data_32;
232  D64 *m_data_64;
234 };
235 
236 namespace Foundation1300 {
237  struct IDD32 {
240  };
241 
242  struct IDD64 {
243  uint64_t used;
244  uint64_t list;
245  };
246 
249 }
250 
251 namespace Foundation1430 {
254 }
255 
256 namespace Foundation1436 {
257  struct IDD32 {
259  uint32_t list; // in Inline cases, this is the first element
260  };
261 
262  struct IDD64 {
263  uint64_t used;
264  uint64_t list; // in Inline cases, this is the first element
265  };
266 
269 
272 
275 
276  uint64_t
278  Status &error) {
279  return Foundation1437::__NSArrayMSize(process, valobj_addr, error);
280  }
281 }
282 
283 namespace ConstantArray {
284 
286  uint64_t used;
288 };
289 
291  uint64_t used;
292  uint64_t list;
293 };
294 
297 } // namespace ConstantArray
298 
300 public:
301  NSArray0SyntheticFrontEnd(lldb::ValueObjectSP valobj_sp);
302 
303  ~NSArray0SyntheticFrontEnd() override = default;
304 
305  size_t CalculateNumChildren() override;
306 
307  lldb::ValueObjectSP GetChildAtIndex(size_t idx) override;
308 
309  bool Update() override;
310 
311  bool MightHaveChildren() override;
312 
313  size_t GetIndexOfChildWithName(ConstString name) override;
314 };
315 
317 public:
318  NSArray1SyntheticFrontEnd(lldb::ValueObjectSP valobj_sp);
319 
320  ~NSArray1SyntheticFrontEnd() override = default;
321 
322  size_t CalculateNumChildren() override;
323 
324  lldb::ValueObjectSP GetChildAtIndex(size_t idx) override;
325 
326  bool Update() override;
327 
328  bool MightHaveChildren() override;
329 
330  size_t GetIndexOfChildWithName(ConstString name) override;
331 };
332 } // namespace formatters
333 } // namespace lldb_private
334 
336  ValueObject &valobj, Stream &stream, const TypeSummaryOptions &options) {
337  static ConstString g_TypeHint("NSArray");
338 
339  ProcessSP process_sp = valobj.GetProcessSP();
340  if (!process_sp)
341  return false;
342 
343  ObjCLanguageRuntime *runtime = ObjCLanguageRuntime::Get(*process_sp);
344 
345  if (!runtime)
346  return false;
347 
349  runtime->GetClassDescriptor(valobj));
350 
351  if (!descriptor || !descriptor->IsValid())
352  return false;
353 
354  uint32_t ptr_size = process_sp->GetAddressByteSize();
355 
356  lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0);
357 
358  if (!valobj_addr)
359  return false;
360 
361  uint64_t value = 0;
362 
363  ConstString class_name(descriptor->GetClassName());
364 
365  static const ConstString g_NSArrayI("__NSArrayI");
366  static const ConstString g_NSArrayM("__NSArrayM");
367  static const ConstString g_NSArrayI_Transfer("__NSArrayI_Transfer");
368  static const ConstString g_NSFrozenArrayM("__NSFrozenArrayM");
369  static const ConstString g_NSArray0("__NSArray0");
370  static const ConstString g_NSArray1("__NSSingleObjectArrayI");
371  static const ConstString g_NSArrayCF("__NSCFArray");
372  static const ConstString g_NSArrayMLegacy("__NSArrayM_Legacy");
373  static const ConstString g_NSArrayMImmutable("__NSArrayM_Immutable");
374  static const ConstString g_NSCallStackArray("_NSCallStackArray");
375  static const ConstString g_NSConstantArray("NSConstantArray");
376 
377  if (class_name.IsEmpty())
378  return false;
379 
380  if (class_name == g_NSArrayI) {
381  Status error;
382  value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size,
383  ptr_size, 0, error);
384  if (error.Fail())
385  return false;
386  } else if (class_name == g_NSConstantArray) {
387  Status error;
388  value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size, 8,
389  0, error);
390  if (error.Fail())
391  return false;
392  } else if (class_name == g_NSArrayM) {
393  AppleObjCRuntime *apple_runtime =
394  llvm::dyn_cast_or_null<AppleObjCRuntime>(runtime);
395  Status error;
396  if (apple_runtime && apple_runtime->GetFoundationVersion() >= 1437) {
397  value = Foundation1437::__NSArrayMSize(*process_sp, valobj_addr, error);
398  } else {
399  value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size,
400  ptr_size, 0, error);
401  }
402  if (error.Fail())
403  return false;
404  } else if (class_name == g_NSArrayI_Transfer) {
405  Status error;
406  value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size,
407  ptr_size, 0, error);
408  if (error.Fail())
409  return false;
410  } else if (class_name == g_NSFrozenArrayM) {
411  Status error;
412  value = Foundation1436::__NSFrozenArrayMSize(*process_sp, valobj_addr, error);
413  if (error.Fail())
414  return false;
415  } else if (class_name == g_NSArrayMLegacy) {
416  Status error;
417  value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size,
418  ptr_size, 0, error);
419  if (error.Fail())
420  return false;
421  } else if (class_name == g_NSArrayMImmutable) {
422  Status error;
423  value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size,
424  ptr_size, 0, error);
425  if (error.Fail())
426  return false;
427  } else if (class_name == g_NSArray0) {
428  value = 0;
429  } else if (class_name == g_NSArray1) {
430  value = 1;
431  } else if (class_name == g_NSArrayCF || class_name == g_NSCallStackArray) {
432  // __NSCFArray and _NSCallStackArray store the number of elements as a
433  // pointer-sized value at offset `2 * ptr_size`.
434  Status error;
435  value = process_sp->ReadUnsignedIntegerFromMemory(
436  valobj_addr + 2 * ptr_size, ptr_size, 0, error);
437  if (error.Fail())
438  return false;
439  } else {
440  auto &map(NSArray_Additionals::GetAdditionalSummaries());
441  auto iter = map.find(class_name), end = map.end();
442  if (iter != end)
443  return iter->second(valobj, stream, options);
444  else
445  return false;
446  }
447 
448  std::string prefix, suffix;
449  if (Language *language = Language::FindPlugin(options.GetLanguage())) {
450  if (!language->GetFormatterPrefixSuffix(valobj, g_TypeHint, prefix,
451  suffix)) {
452  prefix.clear();
453  suffix.clear();
454  }
455  }
456 
457  stream.Printf("%s%" PRIu64 " %s%s%s", prefix.c_str(), value, "element",
458  value == 1 ? "" : "s", suffix.c_str());
459  return true;
460 }
461 
463  NSArrayMSyntheticFrontEndBase(lldb::ValueObjectSP valobj_sp)
464  : SyntheticChildrenFrontEnd(*valobj_sp), m_exe_ctx_ref(), m_id_type() {
465  if (valobj_sp) {
466  auto *clang_ast_context = ScratchTypeSystemClang::GetForTarget(
467  *valobj_sp->GetExecutionContextRef().GetTargetSP());
468  if (clang_ast_context)
470  clang_ast_context,
471  clang_ast_context->getASTContext().ObjCBuiltinIdTy.getAsOpaquePtr());
472  if (valobj_sp->GetProcessSP())
473  m_ptr_size = valobj_sp->GetProcessSP()->GetAddressByteSize();
474  }
475 }
476 
477 template <typename D32, typename D64>
480  GenericNSArrayMSyntheticFrontEnd(lldb::ValueObjectSP valobj_sp)
481  : NSArrayMSyntheticFrontEndBase(valobj_sp), m_data_32(nullptr),
482  m_data_64(nullptr) {}
483 
484 size_t
486  return GetUsedCount();
487 }
488 
489 lldb::ValueObjectSP
491  size_t idx) {
492  if (idx >= CalculateNumChildren())
493  return lldb::ValueObjectSP();
494  lldb::addr_t object_at_idx = GetDataAddress();
495  size_t pyhs_idx = idx;
496  pyhs_idx += GetOffset();
497  if (GetSize() <= pyhs_idx)
498  pyhs_idx -= GetSize();
499  object_at_idx += (pyhs_idx * m_ptr_size);
500  StreamString idx_name;
501  idx_name.Printf("[%" PRIu64 "]", (uint64_t)idx);
502  return CreateValueObjectFromAddress(idx_name.GetString(), object_at_idx,
503  m_exe_ctx_ref, m_id_type);
504 }
505 
506 template <typename D32, typename D64>
507 bool
510  ValueObjectSP valobj_sp = m_backend.GetSP();
511  m_ptr_size = 0;
512  delete m_data_32;
513  m_data_32 = nullptr;
514  delete m_data_64;
515  m_data_64 = nullptr;
516  if (!valobj_sp)
517  return false;
518  m_exe_ctx_ref = valobj_sp->GetExecutionContextRef();
519  Status error;
520  error.Clear();
521  lldb::ProcessSP process_sp(valobj_sp->GetProcessSP());
522  if (!process_sp)
523  return false;
524  m_ptr_size = process_sp->GetAddressByteSize();
525  uint64_t data_location = valobj_sp->GetValueAsUnsigned(0) + m_ptr_size;
526  if (m_ptr_size == 4) {
527  m_data_32 = new D32();
528  process_sp->ReadMemory(data_location, m_data_32, sizeof(D32),
529  error);
530  } else {
531  m_data_64 = new D64();
532  process_sp->ReadMemory(data_location, m_data_64, sizeof(D64),
533  error);
534  }
535 
536  return error.Success();
537 }
538 
539 bool
541  return true;
542 }
543 
544 size_t
546  ConstString name) {
547  const char *item_name = name.GetCString();
548  uint32_t idx = ExtractIndexFromString(item_name);
549  if (idx < UINT32_MAX && idx >= CalculateNumChildren())
550  return UINT32_MAX;
551  return idx;
552 }
553 
554 template <typename D32, typename D64>
555 lldb_private::formatters::
556  GenericNSArrayMSyntheticFrontEnd<D32, D64>::
557  ~GenericNSArrayMSyntheticFrontEnd<D32, D64>() {
558  delete m_data_32;
559  m_data_32 = nullptr;
560  delete m_data_64;
561  m_data_64 = nullptr;
562 }
563 
564 template <typename D32, typename D64>
566 lldb_private::formatters::
567  GenericNSArrayMSyntheticFrontEnd<D32, D64>::
568  GenericNSArrayMSyntheticFrontEnd::GetDataAddress() {
569  if (!m_data_32 && !m_data_64)
570  return LLDB_INVALID_ADDRESS;
571  return m_data_32 ? m_data_32->_data : m_data_64->_data;
572 }
573 
574 template <typename D32, typename D64>
575 uint64_t
576 lldb_private::formatters::
577  GenericNSArrayMSyntheticFrontEnd<D32, D64>::
578  GenericNSArrayMSyntheticFrontEnd::GetUsedCount() {
579  if (!m_data_32 && !m_data_64)
580  return 0;
581  return m_data_32 ? m_data_32->_used : m_data_64->_used;
582 }
583 
584 template <typename D32, typename D64>
585 uint64_t
586 lldb_private::formatters::
587  GenericNSArrayMSyntheticFrontEnd<D32, D64>::
588  GenericNSArrayMSyntheticFrontEnd::GetOffset() {
589  if (!m_data_32 && !m_data_64)
590  return 0;
591  return m_data_32 ? m_data_32->_offset : m_data_64->_offset;
592 }
593 
594 template <typename D32, typename D64>
595 uint64_t
596 lldb_private::formatters::
597  GenericNSArrayMSyntheticFrontEnd<D32, D64>::
598  GenericNSArrayMSyntheticFrontEnd::GetSize() {
599  if (!m_data_32 && !m_data_64)
600  return 0;
601  return m_data_32 ? m_data_32->_size : m_data_64->_size;
602 }
603 
604 template <typename D32, typename D64, bool Inline>
606  GenericNSArrayISyntheticFrontEnd(lldb::ValueObjectSP valobj_sp)
607  : SyntheticChildrenFrontEnd(*valobj_sp), m_exe_ctx_ref(),
608  m_data_32(nullptr), m_data_64(nullptr) {
609  if (valobj_sp) {
610  CompilerType type = valobj_sp->GetCompilerType();
611  if (type) {
612  auto *clang_ast_context = ScratchTypeSystemClang::GetForTarget(
613  *valobj_sp->GetExecutionContextRef().GetTargetSP());
614  if (clang_ast_context)
615  m_id_type = clang_ast_context->GetType(
616  clang_ast_context->getASTContext().ObjCBuiltinIdTy);
617  }
618  }
619 }
620 
621 template <typename D32, typename D64, bool Inline>
624  delete m_data_32;
625  m_data_32 = nullptr;
626  delete m_data_64;
627  m_data_64 = nullptr;
628 }
629 
630 template <typename D32, typename D64, bool Inline>
631 size_t
634  const char *item_name = name.GetCString();
635  uint32_t idx = ExtractIndexFromString(item_name);
636  if (idx < UINT32_MAX && idx >= CalculateNumChildren())
637  return UINT32_MAX;
638  return idx;
639 }
640 
641 template <typename D32, typename D64, bool Inline>
642 size_t
645  return m_data_32 ? m_data_32->used : m_data_64->used;
646 }
647 
648 template <typename D32, typename D64, bool Inline>
649 bool
652  ValueObjectSP valobj_sp = m_backend.GetSP();
653  m_ptr_size = 0;
654  delete m_data_32;
655  m_data_32 = nullptr;
656  delete m_data_64;
657  m_data_64 = nullptr;
658  if (!valobj_sp)
659  return false;
660  m_exe_ctx_ref = valobj_sp->GetExecutionContextRef();
661  Status error;
662  error.Clear();
663  lldb::ProcessSP process_sp(valobj_sp->GetProcessSP());
664  if (!process_sp)
665  return false;
666  m_ptr_size = process_sp->GetAddressByteSize();
667  uint64_t data_location = valobj_sp->GetValueAsUnsigned(0) + m_ptr_size;
668  if (m_ptr_size == 4) {
669  m_data_32 = new D32();
670  process_sp->ReadMemory(data_location, m_data_32, sizeof(D32),
671  error);
672  } else {
673  m_data_64 = new D64();
674  process_sp->ReadMemory(data_location, m_data_64, sizeof(D64),
675  error);
676  }
677 
678  return error.Success();
679 }
680 
681 template <typename D32, typename D64, bool Inline>
682 bool
685  return true;
686 }
687 
688 template <typename D32, typename D64, bool Inline>
689 lldb::ValueObjectSP
691  GetChildAtIndex(size_t idx) {
692  if (idx >= CalculateNumChildren())
693  return lldb::ValueObjectSP();
694  lldb::addr_t object_at_idx;
695  if (Inline) {
696  object_at_idx = m_backend.GetSP()->GetValueAsUnsigned(0) + m_ptr_size;
697  object_at_idx += m_ptr_size == 4 ? sizeof(D32) : sizeof(D64); // skip the data header
698  object_at_idx -= m_ptr_size; // we treat the last entry in the data header as the first pointer
699  } else {
700  object_at_idx = m_data_32 ? m_data_32->list : m_data_64->list;
701  }
702  object_at_idx += (idx * m_ptr_size);
703 
704  ProcessSP process_sp = m_exe_ctx_ref.GetProcessSP();
705  if (!process_sp)
706  return lldb::ValueObjectSP();
707  Status error;
708  if (error.Fail())
709  return lldb::ValueObjectSP();
710  StreamString idx_name;
711  idx_name.Printf("[%" PRIu64 "]", (uint64_t)idx);
712  return CreateValueObjectFromAddress(idx_name.GetString(), object_at_idx,
713  m_exe_ctx_ref, m_id_type);
714 }
715 
717  lldb::ValueObjectSP valobj_sp)
718  : SyntheticChildrenFrontEnd(*valobj_sp) {}
719 
720 size_t
722  ConstString name) {
723  return UINT32_MAX;
724 }
725 
726 size_t
728  return 0;
729 }
730 
732  return false;
733 }
734 
736  return false;
737 }
738 
739 lldb::ValueObjectSP
741  size_t idx) {
742  return lldb::ValueObjectSP();
743 }
744 
746  lldb::ValueObjectSP valobj_sp)
747  : SyntheticChildrenFrontEnd(*valobj_sp.get()) {}
748 
749 size_t
751  ConstString name) {
752  static const ConstString g_zero("[0]");
753 
754  if (name == g_zero)
755  return 0;
756 
757  return UINT32_MAX;
758 }
759 
760 size_t
762  return 1;
763 }
764 
766  return false;
767 }
768 
770  return true;
771 }
772 
773 lldb::ValueObjectSP
775  size_t idx) {
776  static const ConstString g_zero("[0]");
777 
778  if (idx == 0) {
779  auto *clang_ast_context =
780  ScratchTypeSystemClang::GetForTarget(*m_backend.GetTargetSP());
781  if (clang_ast_context) {
782  CompilerType id_type(
783  clang_ast_context->GetBasicType(lldb::eBasicTypeObjCID));
784  return m_backend.GetSyntheticChildAtOffset(
785  m_backend.GetProcessSP()->GetAddressByteSize(), id_type, true,
786  g_zero);
787  }
788  }
789  return lldb::ValueObjectSP();
790 }
791 
794  CXXSyntheticChildren *synth, lldb::ValueObjectSP valobj_sp) {
795  if (!valobj_sp)
796  return nullptr;
797 
798  lldb::ProcessSP process_sp(valobj_sp->GetProcessSP());
799  if (!process_sp)
800  return nullptr;
801  AppleObjCRuntime *runtime = llvm::dyn_cast_or_null<AppleObjCRuntime>(
802  ObjCLanguageRuntime::Get(*process_sp));
803  if (!runtime)
804  return nullptr;
805 
806  CompilerType valobj_type(valobj_sp->GetCompilerType());
807  Flags flags(valobj_type.GetTypeInfo());
808 
809  if (flags.IsClear(eTypeIsPointer)) {
810  Status error;
811  valobj_sp = valobj_sp->AddressOf(error);
812  if (error.Fail() || !valobj_sp)
813  return nullptr;
814  }
815 
817  runtime->GetClassDescriptor(*valobj_sp));
818 
819  if (!descriptor || !descriptor->IsValid())
820  return nullptr;
821 
822  ConstString class_name(descriptor->GetClassName());
823 
824  static const ConstString g_NSArrayI("__NSArrayI");
825  static const ConstString g_NSConstantArray("NSConstantArray");
826  static const ConstString g_NSArrayI_Transfer("__NSArrayI_Transfer");
827  static const ConstString g_NSFrozenArrayM("__NSFrozenArrayM");
828  static const ConstString g_NSArrayM("__NSArrayM");
829  static const ConstString g_NSArray0("__NSArray0");
830  static const ConstString g_NSArray1("__NSSingleObjectArrayI");
831  static const ConstString g_NSArrayMLegacy("__NSArrayM_Legacy");
832  static const ConstString g_NSArrayMImmutable("__NSArrayM_Immutable");
833  static const ConstString g_NSCallStackArray("_NSCallStackArray");
834 
835  if (class_name.IsEmpty())
836  return nullptr;
837 
838  if (class_name == g_NSArrayI) {
839  if (runtime->GetFoundationVersion() >= 1436)
840  return (new Foundation1436::NSArrayISyntheticFrontEnd(valobj_sp));
841  if (runtime->GetFoundationVersion() >= 1430)
842  return (new Foundation1430::NSArrayISyntheticFrontEnd(valobj_sp));
843  return (new Foundation1300::NSArrayISyntheticFrontEnd(valobj_sp));
844  } else if (class_name == g_NSArrayI_Transfer) {
846  } else if (class_name == g_NSConstantArray) {
848  } else if (class_name == g_NSFrozenArrayM) {
849  return (new Foundation1436::NSFrozenArrayMSyntheticFrontEnd(valobj_sp));
850  } else if (class_name == g_NSArray0) {
851  return (new NSArray0SyntheticFrontEnd(valobj_sp));
852  } else if (class_name == g_NSArray1) {
853  return (new NSArray1SyntheticFrontEnd(valobj_sp));
854  } else if (class_name == g_NSArrayM) {
855  if (runtime->GetFoundationVersion() >= 1437)
856  return (new Foundation1437::NSArrayMSyntheticFrontEnd(valobj_sp));
857  if (runtime->GetFoundationVersion() >= 1428)
858  return (new Foundation1428::NSArrayMSyntheticFrontEnd(valobj_sp));
859  if (runtime->GetFoundationVersion() >= 1100)
860  return (new Foundation1010::NSArrayMSyntheticFrontEnd(valobj_sp));
861  } else if (class_name == g_NSCallStackArray) {
863  } else {
865  auto iter = map.find(class_name), end = map.end();
866  if (iter != end)
867  return iter->second(synth, valobj_sp);
868  }
869 
870  return nullptr;
871 }
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Definition: NSArray.cpp:721
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Definition: NSArray.cpp:258
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Definition: Process.cpp:1922
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Definition: ObjCLanguageRuntime.h:45
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Definition: ObjCLanguageRuntime.h:214
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Definition: ValueObject.h:338
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Definition: TypeSummary.cpp:31
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Definition: NSArray.cpp:750
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Definition: NSArray.cpp:211
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Definition: NSArray.cpp:735
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Definition: NSArray.cpp:103
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Definition: TypeSummary.h:26
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Definition: ConstString.h:215
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Definition: NSArray.cpp:106
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Definition: CompilerType.h:33
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Output printf formatted output to the stream.
Definition: Stream.cpp:107
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Definition: NSArray.cpp:238
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Definition: CXXFunctionPointer.h:15
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Definition: SBCommandInterpreterRunOptions.h:16
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Definition: NSArray.cpp:299
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Definition: NSArray.cpp:509
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Definition: NSArray.cpp:651
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Definition: NSArray.cpp:633
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Definition: NSArray.cpp:107
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Definition: NSArray.cpp:761
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Definition: NSArray.cpp:540
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Definition: NSArray.cpp:262
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Test a single flag bit to see if it is clear (zero).
Definition: Flags.h:111
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Definition: NSArray.cpp:239
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Definition: ExecutionContext.h:72
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