2013-02-21 19:57:10 +00:00
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//===-- LibStdcpp.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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2015-09-04 21:01:18 +00:00
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#include "LibStdcpp.h"
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2013-02-21 19:57:10 +00:00
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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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2015-10-22 00:23:38 +00:00
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#include "lldb/DataFormatters/StringPrinter.h"
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2015-09-04 00:33:51 +00:00
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#include "lldb/DataFormatters/VectorIterator.h"
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2013-02-21 19:57:10 +00:00
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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/Target.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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2015-09-04 00:33:51 +00:00
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class LibstdcppMapIteratorSyntheticFrontEnd : public SyntheticChildrenFrontEnd
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{
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public:
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LibstdcppMapIteratorSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp);
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size_t
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CalculateNumChildren() override;
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lldb::ValueObjectSP
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GetChildAtIndex(size_t idx) override;
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bool
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Update() override;
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bool
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MightHaveChildren() override;
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size_t
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GetIndexOfChildWithName (const ConstString &name) override;
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~LibstdcppMapIteratorSyntheticFrontEnd() override;
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private:
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ExecutionContextRef m_exe_ctx_ref;
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lldb::addr_t m_pair_address;
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CompilerType m_pair_type;
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EvaluateExpressionOptions m_options;
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lldb::ValueObjectSP m_pair_sp;
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};
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2013-02-21 19:57:10 +00:00
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/*
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(std::_Rb_tree_iterator<std::pair<const int, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >) ibeg = {
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(_Base_ptr) _M_node = 0x0000000100103910 {
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(std::_Rb_tree_color) _M_color = _S_black
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(std::_Rb_tree_node_base::_Base_ptr) _M_parent = 0x00000001001038c0
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(std::_Rb_tree_node_base::_Base_ptr) _M_left = 0x0000000000000000
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(std::_Rb_tree_node_base::_Base_ptr) _M_right = 0x0000000000000000
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}
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}
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*/
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2015-09-04 00:33:51 +00:00
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LibstdcppMapIteratorSyntheticFrontEnd::LibstdcppMapIteratorSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
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2013-07-11 22:46:58 +00:00
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SyntheticChildrenFrontEnd(*valobj_sp.get()),
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m_exe_ctx_ref(),
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m_pair_address(0),
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m_pair_type(),
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m_options(),
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m_pair_sp()
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2013-02-21 19:57:10 +00:00
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{
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if (valobj_sp)
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Update();
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2013-11-07 00:11:47 +00:00
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m_options.SetCoerceToId(false);
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m_options.SetUnwindOnError(true);
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m_options.SetKeepInMemory(true);
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m_options.SetUseDynamic(lldb::eDynamicCanRunTarget);
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2013-02-21 19:57:10 +00:00
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}
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bool
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2015-09-04 00:33:51 +00:00
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LibstdcppMapIteratorSyntheticFrontEnd::Update()
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2013-02-21 19:57:10 +00:00
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{
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ValueObjectSP valobj_sp = m_backend.GetSP();
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if (!valobj_sp)
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return false;
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TargetSP target_sp(valobj_sp->GetTargetSP());
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if (!target_sp)
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return false;
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bool is_64bit = (target_sp->GetArchitecture().GetAddressByteSize() == 8);
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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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ValueObjectSP _M_node_sp(valobj_sp->GetChildMemberWithName(ConstString("_M_node"), true));
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if (!_M_node_sp)
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return false;
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m_pair_address = _M_node_sp->GetValueAsUnsigned(0);
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if (m_pair_address == 0)
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return false;
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m_pair_address += (is_64bit ? 32 : 16);
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2015-08-24 23:46:31 +00:00
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CompilerType my_type(valobj_sp->GetCompilerType());
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2015-08-13 00:24:24 +00:00
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if (my_type.GetNumTemplateArguments() >= 1)
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2013-02-21 19:57:10 +00:00
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{
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TemplateArgumentKind kind;
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2015-08-13 00:24:24 +00:00
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CompilerType pair_type = my_type.GetTemplateArgument(0, kind);
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2013-02-21 19:57:10 +00:00
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if (kind != eTemplateArgumentKindType && kind != eTemplateArgumentKindTemplate && kind != eTemplateArgumentKindTemplateExpansion)
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return false;
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2013-07-11 22:46:58 +00:00
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m_pair_type = pair_type;
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2013-02-21 19:57:10 +00:00
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}
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else
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return false;
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return true;
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}
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size_t
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2015-09-04 00:33:51 +00:00
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LibstdcppMapIteratorSyntheticFrontEnd::CalculateNumChildren ()
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2013-02-21 19:57:10 +00:00
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{
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return 2;
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}
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lldb::ValueObjectSP
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2015-09-04 00:33:51 +00:00
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LibstdcppMapIteratorSyntheticFrontEnd::GetChildAtIndex (size_t idx)
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2013-02-21 19:57:10 +00:00
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{
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2013-07-11 22:46:58 +00:00
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if (m_pair_address != 0 && m_pair_type)
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{
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if (!m_pair_sp)
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2014-12-09 19:51:20 +00:00
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m_pair_sp = CreateValueObjectFromAddress("pair", m_pair_address, m_exe_ctx_ref, m_pair_type);
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2013-07-11 22:46:58 +00:00
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if (m_pair_sp)
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return m_pair_sp->GetChildAtIndex(idx, true);
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}
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2013-02-21 19:57:10 +00:00
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return lldb::ValueObjectSP();
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}
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bool
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2015-09-04 00:33:51 +00:00
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LibstdcppMapIteratorSyntheticFrontEnd::MightHaveChildren ()
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2013-02-21 19:57:10 +00:00
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{
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return true;
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}
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size_t
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2015-09-04 00:33:51 +00:00
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LibstdcppMapIteratorSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
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2013-02-21 19:57:10 +00:00
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{
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if (name == ConstString("first"))
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return 0;
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if (name == ConstString("second"))
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return 1;
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return UINT32_MAX;
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}
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2015-09-04 00:33:51 +00:00
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LibstdcppMapIteratorSyntheticFrontEnd::~LibstdcppMapIteratorSyntheticFrontEnd ()
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2013-02-21 19:57:10 +00:00
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{}
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SyntheticChildrenFrontEnd*
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lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp)
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{
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if (!valobj_sp)
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return NULL;
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return (new LibstdcppMapIteratorSyntheticFrontEnd(valobj_sp));
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}
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/*
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(lldb) fr var ibeg --ptr-depth 1
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(__gnu_cxx::__normal_iterator<int *, std::vector<int, std::allocator<int> > >) ibeg = {
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_M_current = 0x00000001001037a0 {
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*_M_current = 1
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}
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}
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*/
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SyntheticChildrenFrontEnd*
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lldb_private::formatters::LibStdcppVectorIteratorSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp)
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{
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static ConstString g_item_name;
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if (!g_item_name)
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g_item_name.SetCString("_M_current");
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if (!valobj_sp)
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return NULL;
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return (new VectorIteratorSyntheticFrontEnd(valobj_sp,g_item_name));
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}
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2015-09-03 01:29:42 +00:00
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lldb_private::formatters::VectorIteratorSyntheticFrontEnd::VectorIteratorSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp,
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ConstString item_name) :
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SyntheticChildrenFrontEnd(*valobj_sp.get()),
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m_exe_ctx_ref(),
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m_item_name(item_name),
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m_item_sp()
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{
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if (valobj_sp)
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Update();
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}
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bool
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lldb_private::formatters::VectorIteratorSyntheticFrontEnd::Update()
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{
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m_item_sp.reset();
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ValueObjectSP valobj_sp = m_backend.GetSP();
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if (!valobj_sp)
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return false;
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if (!valobj_sp)
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return false;
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ValueObjectSP item_ptr(valobj_sp->GetChildMemberWithName(m_item_name,true));
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if (!item_ptr)
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return false;
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if (item_ptr->GetValueAsUnsigned(0) == 0)
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return false;
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Error err;
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m_exe_ctx_ref = valobj_sp->GetExecutionContextRef();
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m_item_sp = CreateValueObjectFromAddress("item", item_ptr->GetValueAsUnsigned(0), m_exe_ctx_ref, item_ptr->GetCompilerType().GetPointeeType());
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if (err.Fail())
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m_item_sp.reset();
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return false;
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}
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size_t
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lldb_private::formatters::VectorIteratorSyntheticFrontEnd::CalculateNumChildren ()
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{
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return 1;
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}
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lldb::ValueObjectSP
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lldb_private::formatters::VectorIteratorSyntheticFrontEnd::GetChildAtIndex (size_t idx)
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{
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if (idx == 0)
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return m_item_sp;
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return lldb::ValueObjectSP();
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}
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bool
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lldb_private::formatters::VectorIteratorSyntheticFrontEnd::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::VectorIteratorSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
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{
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if (name == ConstString("item"))
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return 0;
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return UINT32_MAX;
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}
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lldb_private::formatters::VectorIteratorSyntheticFrontEnd::~VectorIteratorSyntheticFrontEnd ()
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{
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}
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2015-10-22 00:23:38 +00:00
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bool
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lldb_private::formatters::LibStdcppStringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
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{
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const bool scalar_is_load_addr = true;
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AddressType addr_type;
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lldb::addr_t addr_of_string = valobj.GetAddressOf(scalar_is_load_addr, &addr_type);
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if (addr_of_string != LLDB_INVALID_ADDRESS)
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{
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switch (addr_type)
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{
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case eAddressTypeLoad:
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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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StringPrinter::ReadStringAndDumpToStreamOptions options(valobj);
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Error error;
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lldb::addr_t addr_of_data = process_sp->ReadPointerFromMemory(addr_of_string, error);
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if (error.Fail() || addr_of_data == 0 || addr_of_data == LLDB_INVALID_ADDRESS)
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return false;
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options.SetLocation(addr_of_data);
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options.SetProcessSP(process_sp);
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options.SetStream(&stream);
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options.SetNeedsZeroTermination(false);
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options.SetBinaryZeroIsTerminator(true);
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lldb::addr_t size_of_data = process_sp->ReadPointerFromMemory(addr_of_string + process_sp->GetAddressByteSize(), error);
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if (error.Fail())
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return false;
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options.SetSourceSize(size_of_data);
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if (!StringPrinter::ReadStringAndDumpToStream<StringPrinter::StringElementType::UTF8>(options))
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{
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stream.Printf("Summary Unavailable");
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return true;
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}
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else
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return true;
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}
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break;
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case eAddressTypeHost:
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break;
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case eAddressTypeInvalid:
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case eAddressTypeFile:
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break;
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}
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}
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return false;
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}
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bool
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lldb_private::formatters::LibStdcppWStringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
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{
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const bool scalar_is_load_addr = true;
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AddressType addr_type;
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lldb::addr_t addr_of_string = valobj.GetAddressOf(scalar_is_load_addr, &addr_type);
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if (addr_of_string != LLDB_INVALID_ADDRESS)
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{
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switch (addr_type)
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{
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case eAddressTypeLoad:
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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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CompilerType wchar_compiler_type = valobj.GetCompilerType().GetBasicTypeFromAST(lldb::eBasicTypeWChar);
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if (!wchar_compiler_type)
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return false;
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const uint32_t wchar_size = wchar_compiler_type.GetBitSize(nullptr); // Safe to pass NULL for exe_scope here
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StringPrinter::ReadStringAndDumpToStreamOptions options(valobj);
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Error error;
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lldb::addr_t addr_of_data = process_sp->ReadPointerFromMemory(addr_of_string, error);
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if (error.Fail() || addr_of_data == 0 || addr_of_data == LLDB_INVALID_ADDRESS)
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return false;
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options.SetLocation(addr_of_data);
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options.SetProcessSP(process_sp);
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options.SetStream(&stream);
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options.SetNeedsZeroTermination(false);
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options.SetBinaryZeroIsTerminator(false);
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lldb::addr_t size_of_data = process_sp->ReadPointerFromMemory(addr_of_string + process_sp->GetAddressByteSize(), error);
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if (error.Fail())
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return false;
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options.SetSourceSize(size_of_data);
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|
|
|
options.SetPrefixToken("L");
|
|
|
|
|
|
|
|
switch (wchar_size)
|
|
|
|
{
|
|
|
|
case 8:
|
|
|
|
return StringPrinter::ReadStringAndDumpToStream<StringPrinter::StringElementType::UTF8>(options);
|
|
|
|
case 16:
|
|
|
|
return StringPrinter::ReadStringAndDumpToStream<StringPrinter::StringElementType::UTF16>(options);
|
|
|
|
case 32:
|
|
|
|
return StringPrinter::ReadStringAndDumpToStream<StringPrinter::StringElementType::UTF32>(options);
|
|
|
|
default:
|
|
|
|
stream.Printf("size for wchar_t is not valid");
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case eAddressTypeHost:
|
|
|
|
break;
|
|
|
|
case eAddressTypeInvalid:
|
|
|
|
case eAddressTypeFile:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return false;
|
|
|
|
}
|