forked from OSchip/llvm-project
709 lines
20 KiB
C++
709 lines
20 KiB
C++
//===-- NSArray.cpp ---------------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/lldb-python.h"
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#include "lldb/DataFormatters/CXXFormatterFunctions.h"
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#include "lldb/Core/DataBufferHeap.h"
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#include "lldb/Core/Error.h"
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#include "lldb/Core/Stream.h"
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#include "lldb/Core/ValueObject.h"
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#include "lldb/Core/ValueObjectConstResult.h"
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#include "lldb/Host/Endian.h"
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#include "lldb/Symbol/ClangASTContext.h"
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#include "lldb/Target/ObjCLanguageRuntime.h"
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#include "Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCRuntime.h"
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#include "lldb/Target/Target.h"
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#include "clang/AST/ASTContext.h"
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using namespace lldb;
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using namespace lldb_private;
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using namespace lldb_private::formatters;
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namespace lldb_private {
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namespace formatters {
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class NSArrayMSyntheticFrontEnd : public SyntheticChildrenFrontEnd
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{
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public:
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NSArrayMSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp);
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virtual size_t
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CalculateNumChildren ();
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virtual lldb::ValueObjectSP
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GetChildAtIndex (size_t idx);
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virtual bool
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Update() = 0;
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virtual bool
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MightHaveChildren ();
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virtual size_t
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GetIndexOfChildWithName (const ConstString &name);
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virtual
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~NSArrayMSyntheticFrontEnd () {}
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protected:
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virtual lldb::addr_t
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GetDataAddress () = 0;
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virtual uint64_t
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GetUsedCount () = 0;
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virtual uint64_t
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GetOffset () = 0;
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virtual uint64_t
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GetSize () = 0;
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ExecutionContextRef m_exe_ctx_ref;
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uint8_t m_ptr_size;
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ClangASTType m_id_type;
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std::vector<lldb::ValueObjectSP> m_children;
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};
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class NSArrayMSyntheticFrontEnd_109 : public NSArrayMSyntheticFrontEnd
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{
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private:
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struct DataDescriptor_32
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{
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uint32_t _used;
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uint32_t _priv1 : 2 ;
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uint32_t _size : 30;
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uint32_t _priv2 : 2;
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uint32_t _offset : 30;
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uint32_t _priv3;
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uint32_t _data;
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};
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struct DataDescriptor_64
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{
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uint64_t _used;
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uint64_t _priv1 : 2 ;
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uint64_t _size : 62;
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uint64_t _priv2 : 2;
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uint64_t _offset : 62;
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uint32_t _priv3;
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uint64_t _data;
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};
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public:
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NSArrayMSyntheticFrontEnd_109 (lldb::ValueObjectSP valobj_sp);
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virtual bool
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Update();
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virtual
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~NSArrayMSyntheticFrontEnd_109 ();
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protected:
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virtual lldb::addr_t
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GetDataAddress ();
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virtual uint64_t
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GetUsedCount ();
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virtual uint64_t
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GetOffset ();
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virtual uint64_t
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GetSize ();
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private:
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DataDescriptor_32 *m_data_32;
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DataDescriptor_64 *m_data_64;
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};
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class NSArrayMSyntheticFrontEnd_1010 : public NSArrayMSyntheticFrontEnd
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{
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private:
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struct DataDescriptor_32
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{
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uint32_t _used;
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uint32_t _offset;
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uint32_t _size : 28;
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uint64_t _priv1 : 4;
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uint32_t _priv2;
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uint32_t _data;
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};
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struct DataDescriptor_64
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{
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uint64_t _used;
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uint64_t _offset;
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uint64_t _size : 60;
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uint64_t _priv1 : 4;
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uint32_t _priv2;
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uint64_t _data;
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};
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public:
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NSArrayMSyntheticFrontEnd_1010 (lldb::ValueObjectSP valobj_sp);
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virtual bool
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Update();
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virtual
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~NSArrayMSyntheticFrontEnd_1010 ();
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protected:
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virtual lldb::addr_t
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GetDataAddress ();
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virtual uint64_t
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GetUsedCount ();
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virtual uint64_t
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GetOffset ();
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virtual uint64_t
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GetSize ();
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private:
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DataDescriptor_32 *m_data_32;
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DataDescriptor_64 *m_data_64;
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};
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class NSArrayISyntheticFrontEnd : public SyntheticChildrenFrontEnd
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{
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public:
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NSArrayISyntheticFrontEnd (lldb::ValueObjectSP valobj_sp);
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virtual size_t
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CalculateNumChildren ();
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virtual lldb::ValueObjectSP
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GetChildAtIndex (size_t idx);
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virtual bool
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Update();
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virtual bool
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MightHaveChildren ();
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virtual size_t
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GetIndexOfChildWithName (const ConstString &name);
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virtual
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~NSArrayISyntheticFrontEnd ();
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private:
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ExecutionContextRef m_exe_ctx_ref;
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uint8_t m_ptr_size;
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uint64_t m_items;
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lldb::addr_t m_data_ptr;
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ClangASTType m_id_type;
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std::vector<lldb::ValueObjectSP> m_children;
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};
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class NSArrayCodeRunningSyntheticFrontEnd : public SyntheticChildrenFrontEnd
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{
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public:
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NSArrayCodeRunningSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp);
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virtual size_t
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CalculateNumChildren ();
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virtual lldb::ValueObjectSP
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GetChildAtIndex (size_t idx);
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virtual bool
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Update();
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virtual bool
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MightHaveChildren ();
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virtual size_t
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GetIndexOfChildWithName (const ConstString &name);
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virtual
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~NSArrayCodeRunningSyntheticFrontEnd ();
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};
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}
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}
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bool
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lldb_private::formatters::NSArraySummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
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{
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ProcessSP process_sp = valobj.GetProcessSP();
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if (!process_sp)
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return false;
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ObjCLanguageRuntime* runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
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if (!runtime)
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return false;
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ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(valobj));
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if (!descriptor.get() || !descriptor->IsValid())
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return false;
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uint32_t ptr_size = process_sp->GetAddressByteSize();
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lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0);
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if (!valobj_addr)
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return false;
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uint64_t value = 0;
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const char* class_name = descriptor->GetClassName().GetCString();
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if (!class_name || !*class_name)
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return false;
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if (!strcmp(class_name,"__NSArrayI"))
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{
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Error error;
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value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size, ptr_size, 0, error);
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if (error.Fail())
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return false;
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}
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else if (!strcmp(class_name,"__NSArrayM"))
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{
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Error error;
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value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size, ptr_size, 0, error);
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if (error.Fail())
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return false;
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}
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else if (!strcmp(class_name,"__NSCFArray"))
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{
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Error error;
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value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + 2 * ptr_size, ptr_size, 0, error);
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if (error.Fail())
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return false;
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}
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else
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{
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if (!ExtractValueFromObjCExpression(valobj, "int", "count", value))
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return false;
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}
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stream.Printf("@\"%" PRIu64 " object%s\"",
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value,
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value == 1 ? "" : "s");
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return true;
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}
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lldb_private::formatters::NSArrayMSyntheticFrontEnd::NSArrayMSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
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SyntheticChildrenFrontEnd(*valobj_sp),
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m_exe_ctx_ref(),
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m_ptr_size(8),
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m_id_type(),
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m_children()
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{
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if (valobj_sp)
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{
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clang::ASTContext *ast = valobj_sp->GetExecutionContextRef().GetTargetSP()->GetScratchClangASTContext()->getASTContext();
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if (ast)
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m_id_type = ClangASTType(ast, ast->ObjCBuiltinIdTy);
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if (valobj_sp->GetProcessSP())
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m_ptr_size = valobj_sp->GetProcessSP()->GetAddressByteSize();
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}
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}
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lldb_private::formatters::NSArrayMSyntheticFrontEnd_109::NSArrayMSyntheticFrontEnd_109 (lldb::ValueObjectSP valobj_sp) :
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NSArrayMSyntheticFrontEnd(valobj_sp),
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m_data_32(NULL),
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m_data_64(NULL)
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{
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}
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lldb_private::formatters::NSArrayMSyntheticFrontEnd_1010::NSArrayMSyntheticFrontEnd_1010 (lldb::ValueObjectSP valobj_sp) :
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NSArrayMSyntheticFrontEnd(valobj_sp),
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m_data_32(NULL),
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m_data_64(NULL)
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{
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}
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size_t
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lldb_private::formatters::NSArrayMSyntheticFrontEnd::CalculateNumChildren ()
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{
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return GetUsedCount();
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}
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lldb::ValueObjectSP
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lldb_private::formatters::NSArrayMSyntheticFrontEnd::GetChildAtIndex (size_t idx)
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{
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if (idx >= CalculateNumChildren())
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return lldb::ValueObjectSP();
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lldb::addr_t object_at_idx = GetDataAddress();
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size_t pyhs_idx = idx;
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pyhs_idx += GetOffset();
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if (GetSize() <= pyhs_idx)
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pyhs_idx -= GetSize();
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object_at_idx += (pyhs_idx * m_ptr_size);
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StreamString idx_name;
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idx_name.Printf("[%" PRIu64 "]", (uint64_t)idx);
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lldb::ValueObjectSP retval_sp = CreateValueObjectFromAddress(idx_name.GetData(),
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object_at_idx,
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m_exe_ctx_ref,
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m_id_type);
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m_children.push_back(retval_sp);
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return retval_sp;
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}
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bool
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lldb_private::formatters::NSArrayMSyntheticFrontEnd_109::Update()
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{
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m_children.clear();
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ValueObjectSP valobj_sp = m_backend.GetSP();
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m_ptr_size = 0;
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delete m_data_32;
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m_data_32 = NULL;
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delete m_data_64;
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m_data_64 = NULL;
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if (!valobj_sp)
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return false;
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m_exe_ctx_ref = valobj_sp->GetExecutionContextRef();
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Error error;
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error.Clear();
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lldb::ProcessSP process_sp(valobj_sp->GetProcessSP());
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if (!process_sp)
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return false;
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m_ptr_size = process_sp->GetAddressByteSize();
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uint64_t data_location = valobj_sp->GetValueAsUnsigned(0) + m_ptr_size;
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if (m_ptr_size == 4)
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{
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m_data_32 = new DataDescriptor_32();
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process_sp->ReadMemory (data_location, m_data_32, sizeof(DataDescriptor_32), error);
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}
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else
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{
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m_data_64 = new DataDescriptor_64();
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process_sp->ReadMemory (data_location, m_data_64, sizeof(DataDescriptor_64), error);
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}
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if (error.Fail())
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return false;
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return false;
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}
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bool
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lldb_private::formatters::NSArrayMSyntheticFrontEnd_1010::Update()
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{
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m_children.clear();
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ValueObjectSP valobj_sp = m_backend.GetSP();
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m_ptr_size = 0;
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delete m_data_32;
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m_data_32 = NULL;
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delete m_data_64;
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m_data_64 = NULL;
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if (!valobj_sp)
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return false;
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m_exe_ctx_ref = valobj_sp->GetExecutionContextRef();
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Error error;
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error.Clear();
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lldb::ProcessSP process_sp(valobj_sp->GetProcessSP());
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if (!process_sp)
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return false;
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m_ptr_size = process_sp->GetAddressByteSize();
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uint64_t data_location = valobj_sp->GetValueAsUnsigned(0) + m_ptr_size;
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if (m_ptr_size == 4)
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{
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m_data_32 = new DataDescriptor_32();
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process_sp->ReadMemory (data_location, m_data_32, sizeof(DataDescriptor_32), error);
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}
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else
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{
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m_data_64 = new DataDescriptor_64();
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process_sp->ReadMemory (data_location, m_data_64, sizeof(DataDescriptor_64), error);
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}
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if (error.Fail())
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return false;
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return false;
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}
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bool
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lldb_private::formatters::NSArrayMSyntheticFrontEnd::MightHaveChildren ()
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{
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return true;
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}
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size_t
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lldb_private::formatters::NSArrayMSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
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{
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const char* item_name = name.GetCString();
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uint32_t idx = ExtractIndexFromString(item_name);
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if (idx < UINT32_MAX && idx >= CalculateNumChildren())
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return UINT32_MAX;
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return idx;
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}
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lldb::addr_t
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lldb_private::formatters::NSArrayMSyntheticFrontEnd_109::GetDataAddress ()
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{
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if (!m_data_32 && !m_data_64)
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return LLDB_INVALID_ADDRESS;
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return m_data_32 ? m_data_32->_data :
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m_data_64->_data;
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}
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uint64_t
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lldb_private::formatters::NSArrayMSyntheticFrontEnd_109::GetUsedCount ()
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{
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if (!m_data_32 && !m_data_64)
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return 0;
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return m_data_32 ? m_data_32->_used :
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m_data_64->_used;
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}
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uint64_t
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lldb_private::formatters::NSArrayMSyntheticFrontEnd_109::GetOffset ()
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{
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if (!m_data_32 && !m_data_64)
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return 0;
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return m_data_32 ? m_data_32->_offset :
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m_data_64->_offset;
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}
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uint64_t
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lldb_private::formatters::NSArrayMSyntheticFrontEnd_109::GetSize ()
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{
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if (!m_data_32 && !m_data_64)
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return 0;
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return m_data_32 ? m_data_32->_size :
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m_data_64->_size;
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}
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lldb_private::formatters::NSArrayMSyntheticFrontEnd_109::~NSArrayMSyntheticFrontEnd_109 ()
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{
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delete m_data_32;
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m_data_32 = NULL;
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delete m_data_64;
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m_data_64 = NULL;
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}
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lldb::addr_t
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lldb_private::formatters::NSArrayMSyntheticFrontEnd_1010::GetDataAddress ()
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{
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if (!m_data_32 && !m_data_64)
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return LLDB_INVALID_ADDRESS;
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return m_data_32 ? m_data_32->_data :
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m_data_64->_data;
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}
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uint64_t
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lldb_private::formatters::NSArrayMSyntheticFrontEnd_1010::GetUsedCount ()
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{
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if (!m_data_32 && !m_data_64)
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return 0;
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return m_data_32 ? m_data_32->_used :
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m_data_64->_used;
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}
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uint64_t
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lldb_private::formatters::NSArrayMSyntheticFrontEnd_1010::GetOffset ()
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{
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if (!m_data_32 && !m_data_64)
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return 0;
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return m_data_32 ? m_data_32->_offset :
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m_data_64->_offset;
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}
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uint64_t
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lldb_private::formatters::NSArrayMSyntheticFrontEnd_1010::GetSize ()
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{
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if (!m_data_32 && !m_data_64)
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return 0;
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return m_data_32 ? m_data_32->_size :
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m_data_64->_size;
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}
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lldb_private::formatters::NSArrayMSyntheticFrontEnd_1010::~NSArrayMSyntheticFrontEnd_1010 ()
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{
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delete m_data_32;
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m_data_32 = NULL;
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delete m_data_64;
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m_data_64 = NULL;
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}
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lldb_private::formatters::NSArrayISyntheticFrontEnd::NSArrayISyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
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SyntheticChildrenFrontEnd (*valobj_sp.get()),
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m_exe_ctx_ref (),
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m_ptr_size (8),
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m_items (0),
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m_data_ptr (0)
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{
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if (valobj_sp)
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{
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clang::ASTContext *ast = valobj_sp->GetClangType().GetASTContext();
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if (ast)
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m_id_type = ClangASTType(ast, ast->ObjCBuiltinIdTy);
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}
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}
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lldb_private::formatters::NSArrayISyntheticFrontEnd::~NSArrayISyntheticFrontEnd ()
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{
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}
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size_t
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lldb_private::formatters::NSArrayISyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
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{
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const char* item_name = name.GetCString();
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uint32_t idx = ExtractIndexFromString(item_name);
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if (idx < UINT32_MAX && idx >= CalculateNumChildren())
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return UINT32_MAX;
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return idx;
|
|
}
|
|
|
|
size_t
|
|
lldb_private::formatters::NSArrayISyntheticFrontEnd::CalculateNumChildren ()
|
|
{
|
|
return m_items;
|
|
}
|
|
|
|
bool
|
|
lldb_private::formatters::NSArrayISyntheticFrontEnd::Update()
|
|
{
|
|
m_ptr_size = 0;
|
|
m_items = 0;
|
|
m_data_ptr = 0;
|
|
m_children.clear();
|
|
ValueObjectSP valobj_sp = m_backend.GetSP();
|
|
if (!valobj_sp)
|
|
return false;
|
|
m_exe_ctx_ref = valobj_sp->GetExecutionContextRef();
|
|
Error error;
|
|
error.Clear();
|
|
lldb::ProcessSP process_sp(valobj_sp->GetProcessSP());
|
|
if (!process_sp)
|
|
return false;
|
|
m_ptr_size = process_sp->GetAddressByteSize();
|
|
uint64_t data_location = valobj_sp->GetValueAsUnsigned(0) + m_ptr_size;
|
|
m_items = process_sp->ReadPointerFromMemory(data_location, error);
|
|
if (error.Fail())
|
|
return false;
|
|
m_data_ptr = data_location+m_ptr_size;
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
lldb_private::formatters::NSArrayISyntheticFrontEnd::MightHaveChildren ()
|
|
{
|
|
return true;
|
|
}
|
|
|
|
lldb::ValueObjectSP
|
|
lldb_private::formatters::NSArrayISyntheticFrontEnd::GetChildAtIndex (size_t idx)
|
|
{
|
|
if (idx >= CalculateNumChildren())
|
|
return lldb::ValueObjectSP();
|
|
lldb::addr_t object_at_idx = m_data_ptr;
|
|
object_at_idx += (idx * m_ptr_size);
|
|
ProcessSP process_sp = m_exe_ctx_ref.GetProcessSP();
|
|
if (!process_sp)
|
|
return lldb::ValueObjectSP();
|
|
Error error;
|
|
if (error.Fail())
|
|
return lldb::ValueObjectSP();
|
|
StreamString idx_name;
|
|
idx_name.Printf("[%" PRIu64 "]", (uint64_t)idx);
|
|
lldb::ValueObjectSP retval_sp = CreateValueObjectFromAddress(idx_name.GetData(),
|
|
object_at_idx,
|
|
m_exe_ctx_ref,
|
|
m_id_type);
|
|
m_children.push_back(retval_sp);
|
|
return retval_sp;
|
|
}
|
|
|
|
SyntheticChildrenFrontEnd* lldb_private::formatters::NSArraySyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp)
|
|
{
|
|
if (!valobj_sp)
|
|
return nullptr;
|
|
|
|
lldb::ProcessSP process_sp (valobj_sp->GetProcessSP());
|
|
if (!process_sp)
|
|
return NULL;
|
|
AppleObjCRuntime *runtime = (AppleObjCRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
|
|
if (!runtime)
|
|
return NULL;
|
|
|
|
ClangASTType valobj_type(valobj_sp->GetClangType());
|
|
Flags flags(valobj_type.GetTypeInfo());
|
|
|
|
if (flags.IsClear(eTypeIsPointer))
|
|
{
|
|
Error error;
|
|
valobj_sp = valobj_sp->AddressOf(error);
|
|
if (error.Fail() || !valobj_sp)
|
|
return NULL;
|
|
}
|
|
|
|
ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(*valobj_sp.get()));
|
|
|
|
if (!descriptor.get() || !descriptor->IsValid())
|
|
return NULL;
|
|
|
|
const char* class_name = descriptor->GetClassName().GetCString();
|
|
|
|
if (!class_name || !*class_name)
|
|
return NULL;
|
|
|
|
if (!strcmp(class_name,"__NSArrayI"))
|
|
{
|
|
return (new NSArrayISyntheticFrontEnd(valobj_sp));
|
|
}
|
|
else if (!strcmp(class_name,"__NSArrayM"))
|
|
{
|
|
if (runtime->GetFoundationVersion() >= 1100)
|
|
return (new NSArrayMSyntheticFrontEnd_1010(valobj_sp));
|
|
else
|
|
return (new NSArrayMSyntheticFrontEnd_109(valobj_sp));
|
|
}
|
|
else
|
|
{
|
|
return (new NSArrayCodeRunningSyntheticFrontEnd(valobj_sp));
|
|
}
|
|
}
|
|
|
|
lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::NSArrayCodeRunningSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
|
|
SyntheticChildrenFrontEnd(*valobj_sp.get())
|
|
{}
|
|
|
|
size_t
|
|
lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::CalculateNumChildren ()
|
|
{
|
|
uint64_t count = 0;
|
|
if (ExtractValueFromObjCExpression(m_backend, "int", "count", count))
|
|
return count;
|
|
return 0;
|
|
}
|
|
|
|
lldb::ValueObjectSP
|
|
lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::GetChildAtIndex (size_t idx)
|
|
{
|
|
StreamString idx_name;
|
|
idx_name.Printf("[%" PRIu64 "]", (uint64_t)idx);
|
|
lldb::ValueObjectSP valobj_sp = CallSelectorOnObject(m_backend,"id","objectAtIndex:",idx);
|
|
if (valobj_sp)
|
|
valobj_sp->SetName(ConstString(idx_name.GetData()));
|
|
return valobj_sp;
|
|
}
|
|
|
|
bool
|
|
lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::Update()
|
|
{
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::MightHaveChildren ()
|
|
{
|
|
return true;
|
|
}
|
|
|
|
size_t
|
|
lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::~NSArrayCodeRunningSyntheticFrontEnd ()
|
|
{}
|