forked from OSchip/llvm-project
607 lines
21 KiB
C++
607 lines
21 KiB
C++
//===-- LineTable.cpp -------------------------------------------*- C++ -*-===//
|
||
//
|
||
// The LLVM Compiler Infrastructure
|
||
//
|
||
// This file is distributed under the University of Illinois Open Source
|
||
// License. See LICENSE.TXT for details.
|
||
//
|
||
//===----------------------------------------------------------------------===//
|
||
|
||
#include "lldb/Core/Address.h"
|
||
#include "lldb/Core/Module.h"
|
||
#include "lldb/Core/Section.h"
|
||
#include "lldb/Core/Stream.h"
|
||
#include "lldb/Symbol/CompileUnit.h"
|
||
#include "lldb/Symbol/LineTable.h"
|
||
#include <algorithm>
|
||
|
||
using namespace lldb;
|
||
using namespace lldb_private;
|
||
|
||
//----------------------------------------------------------------------
|
||
// LineTable constructor
|
||
//----------------------------------------------------------------------
|
||
LineTable::LineTable(CompileUnit* comp_unit) :
|
||
m_comp_unit(comp_unit),
|
||
m_entries()
|
||
{
|
||
}
|
||
|
||
//----------------------------------------------------------------------
|
||
// Destructor
|
||
//----------------------------------------------------------------------
|
||
LineTable::~LineTable()
|
||
{
|
||
}
|
||
|
||
void
|
||
LineTable::InsertLineEntry
|
||
(
|
||
lldb::addr_t file_addr,
|
||
uint32_t line,
|
||
uint16_t column,
|
||
uint16_t file_idx,
|
||
bool is_start_of_statement,
|
||
bool is_start_of_basic_block,
|
||
bool is_prologue_end,
|
||
bool is_epilogue_begin,
|
||
bool is_terminal_entry
|
||
)
|
||
{
|
||
Entry entry(file_addr, line, column, file_idx, is_start_of_statement, is_start_of_basic_block, is_prologue_end, is_epilogue_begin, is_terminal_entry);
|
||
|
||
entry_collection::iterator begin_pos = m_entries.begin();
|
||
entry_collection::iterator end_pos = m_entries.end();
|
||
LineTable::Entry::LessThanBinaryPredicate less_than_bp(this);
|
||
entry_collection::iterator pos = upper_bound(begin_pos, end_pos, entry, less_than_bp);
|
||
|
||
// Stream s(stdout);
|
||
// s << "\n\nBefore:\n";
|
||
// Dump (&s, Address::DumpStyleFileAddress);
|
||
m_entries.insert(pos, entry);
|
||
// s << "After:\n";
|
||
// Dump (&s, Address::DumpStyleFileAddress);
|
||
}
|
||
|
||
LineSequence::LineSequence()
|
||
{
|
||
}
|
||
|
||
void
|
||
LineTable::LineSequenceImpl::Clear()
|
||
{
|
||
m_entries.clear();
|
||
}
|
||
|
||
LineSequence* LineTable::CreateLineSequenceContainer ()
|
||
{
|
||
return new LineTable::LineSequenceImpl();
|
||
}
|
||
|
||
void
|
||
LineTable::AppendLineEntryToSequence
|
||
(
|
||
LineSequence* sequence,
|
||
lldb::addr_t file_addr,
|
||
uint32_t line,
|
||
uint16_t column,
|
||
uint16_t file_idx,
|
||
bool is_start_of_statement,
|
||
bool is_start_of_basic_block,
|
||
bool is_prologue_end,
|
||
bool is_epilogue_begin,
|
||
bool is_terminal_entry
|
||
)
|
||
{
|
||
assert(sequence != nullptr);
|
||
LineSequenceImpl* seq = reinterpret_cast<LineSequenceImpl*>(sequence);
|
||
Entry entry(file_addr, line, column, file_idx, is_start_of_statement, is_start_of_basic_block, is_prologue_end, is_epilogue_begin, is_terminal_entry);
|
||
entry_collection &entries = seq->m_entries;
|
||
// Replace the last entry if the address is the same, otherwise append it. If we have multiple
|
||
// line entries at the same address, this indicates illegal DWARF so this "fixes" the line table
|
||
// to be correct. If not fixed this can cause a line entry's address that when resolved back to
|
||
// a symbol context, could resolve to a different line entry. We really want a 1 to 1 mapping
|
||
// here to avoid these kinds of inconsistencies. We will need tor revisit this if the DWARF line
|
||
// tables are updated to allow multiple entries at the same address legally.
|
||
if (!entries.empty() && entries.back().file_addr == file_addr)
|
||
{
|
||
// GCC don't use the is_prologue_end flag to mark the first instruction after the prologue.
|
||
// Instead of it it is issueing a line table entry for the first instruction of the prologue
|
||
// and one for the first instruction after the prologue. If the size of the prologue is 0
|
||
// instruction then the 2 line entry will have the same file address. Removing it will remove
|
||
// our ability to properly detect the location of the end of prologe so we set the prologue_end
|
||
// flag to preserve this information (setting the prologue_end flag for an entry what is after
|
||
// the prologue end don't have any effect)
|
||
entry.is_prologue_end = entry.file_idx == entries.back().file_idx;
|
||
entries.back() = entry;
|
||
}
|
||
else
|
||
entries.push_back (entry);
|
||
}
|
||
|
||
void
|
||
LineTable::InsertSequence (LineSequence* sequence)
|
||
{
|
||
assert(sequence != nullptr);
|
||
LineSequenceImpl* seq = reinterpret_cast<LineSequenceImpl*>(sequence);
|
||
if (seq->m_entries.empty())
|
||
return;
|
||
Entry& entry = seq->m_entries.front();
|
||
|
||
// If the first entry address in this sequence is greater than or equal to
|
||
// the address of the last item in our entry collection, just append.
|
||
if (m_entries.empty() || !Entry::EntryAddressLessThan(entry, m_entries.back()))
|
||
{
|
||
m_entries.insert(m_entries.end(),
|
||
seq->m_entries.begin(),
|
||
seq->m_entries.end());
|
||
return;
|
||
}
|
||
|
||
// Otherwise, find where this belongs in the collection
|
||
entry_collection::iterator begin_pos = m_entries.begin();
|
||
entry_collection::iterator end_pos = m_entries.end();
|
||
LineTable::Entry::LessThanBinaryPredicate less_than_bp(this);
|
||
entry_collection::iterator pos = upper_bound(begin_pos, end_pos, entry, less_than_bp);
|
||
#ifdef LLDB_CONFIGURATION_DEBUG
|
||
// If we aren't inserting at the beginning, the previous entry should
|
||
// terminate a sequence.
|
||
if (pos != begin_pos)
|
||
{
|
||
entry_collection::iterator prev_pos = pos - 1;
|
||
assert(prev_pos->is_terminal_entry);
|
||
}
|
||
#endif
|
||
m_entries.insert(pos, seq->m_entries.begin(), seq->m_entries.end());
|
||
}
|
||
|
||
//----------------------------------------------------------------------
|
||
LineTable::Entry::LessThanBinaryPredicate::LessThanBinaryPredicate(LineTable *line_table) :
|
||
m_line_table (line_table)
|
||
{
|
||
}
|
||
|
||
bool
|
||
LineTable::Entry::LessThanBinaryPredicate::operator() (const LineTable::Entry& a, const LineTable::Entry& b) const
|
||
{
|
||
#define LT_COMPARE(a,b) if (a != b) return a < b
|
||
LT_COMPARE (a.file_addr, b.file_addr);
|
||
// b and a reversed on purpose below.
|
||
LT_COMPARE (b.is_terminal_entry, a.is_terminal_entry);
|
||
LT_COMPARE (a.line, b.line);
|
||
LT_COMPARE (a.column, b.column);
|
||
LT_COMPARE (a.is_start_of_statement, b.is_start_of_statement);
|
||
LT_COMPARE (a.is_start_of_basic_block, b.is_start_of_basic_block);
|
||
// b and a reversed on purpose below.
|
||
LT_COMPARE (b.is_prologue_end, a.is_prologue_end);
|
||
LT_COMPARE (a.is_epilogue_begin, b.is_epilogue_begin);
|
||
LT_COMPARE (a.file_idx, b.file_idx);
|
||
return false;
|
||
#undef LT_COMPARE
|
||
}
|
||
|
||
|
||
|
||
uint32_t
|
||
LineTable::GetSize() const
|
||
{
|
||
return m_entries.size();
|
||
}
|
||
|
||
bool
|
||
LineTable::GetLineEntryAtIndex(uint32_t idx, LineEntry& line_entry)
|
||
{
|
||
if (idx < m_entries.size())
|
||
{
|
||
ConvertEntryAtIndexToLineEntry (idx, line_entry);
|
||
return true;
|
||
}
|
||
line_entry.Clear();
|
||
return false;
|
||
}
|
||
|
||
bool
|
||
LineTable::FindLineEntryByAddress (const Address &so_addr, LineEntry& line_entry, uint32_t *index_ptr)
|
||
{
|
||
if (index_ptr != nullptr )
|
||
*index_ptr = UINT32_MAX;
|
||
|
||
bool success = false;
|
||
|
||
if (so_addr.GetModule().get() == m_comp_unit->GetModule().get())
|
||
{
|
||
Entry search_entry;
|
||
search_entry.file_addr = so_addr.GetFileAddress();
|
||
if (search_entry.file_addr != LLDB_INVALID_ADDRESS)
|
||
{
|
||
entry_collection::const_iterator begin_pos = m_entries.begin();
|
||
entry_collection::const_iterator end_pos = m_entries.end();
|
||
entry_collection::const_iterator pos = lower_bound(begin_pos, end_pos, search_entry, Entry::EntryAddressLessThan);
|
||
if (pos != end_pos)
|
||
{
|
||
if (pos != begin_pos)
|
||
{
|
||
if (pos->file_addr != search_entry.file_addr)
|
||
--pos;
|
||
else if (pos->file_addr == search_entry.file_addr)
|
||
{
|
||
// If this is a termination entry, it shouldn't match since
|
||
// entries with the "is_terminal_entry" member set to true
|
||
// are termination entries that define the range for the
|
||
// previous entry.
|
||
if (pos->is_terminal_entry)
|
||
{
|
||
// The matching entry is a terminal entry, so we skip
|
||
// ahead to the next entry to see if there is another
|
||
// entry following this one whose section/offset matches.
|
||
++pos;
|
||
if (pos != end_pos)
|
||
{
|
||
if (pos->file_addr != search_entry.file_addr)
|
||
pos = end_pos;
|
||
}
|
||
}
|
||
|
||
if (pos != end_pos)
|
||
{
|
||
// While in the same section/offset backup to find the first
|
||
// line entry that matches the address in case there are
|
||
// multiple
|
||
while (pos != begin_pos)
|
||
{
|
||
entry_collection::const_iterator prev_pos = pos - 1;
|
||
if (prev_pos->file_addr == search_entry.file_addr &&
|
||
prev_pos->is_terminal_entry == false)
|
||
--pos;
|
||
else
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
}
|
||
|
||
// Make sure we have a valid match and that the match isn't a terminating
|
||
// entry for a previous line...
|
||
if (pos != end_pos && pos->is_terminal_entry == false)
|
||
{
|
||
uint32_t match_idx = std::distance (begin_pos, pos);
|
||
success = ConvertEntryAtIndexToLineEntry(match_idx, line_entry);
|
||
if (index_ptr != nullptr && success)
|
||
*index_ptr = match_idx;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
return success;
|
||
}
|
||
|
||
|
||
bool
|
||
LineTable::ConvertEntryAtIndexToLineEntry (uint32_t idx, LineEntry &line_entry)
|
||
{
|
||
if (idx < m_entries.size())
|
||
{
|
||
const Entry& entry = m_entries[idx];
|
||
ModuleSP module_sp (m_comp_unit->GetModule());
|
||
if (module_sp && module_sp->ResolveFileAddress(entry.file_addr, line_entry.range.GetBaseAddress()))
|
||
{
|
||
if (!entry.is_terminal_entry && idx + 1 < m_entries.size())
|
||
line_entry.range.SetByteSize(m_entries[idx+1].file_addr - entry.file_addr);
|
||
else
|
||
line_entry.range.SetByteSize(0);
|
||
|
||
line_entry.file = m_comp_unit->GetSupportFiles().GetFileSpecAtIndex (entry.file_idx);
|
||
line_entry.line = entry.line;
|
||
line_entry.column = entry.column;
|
||
line_entry.is_start_of_statement = entry.is_start_of_statement;
|
||
line_entry.is_start_of_basic_block = entry.is_start_of_basic_block;
|
||
line_entry.is_prologue_end = entry.is_prologue_end;
|
||
line_entry.is_epilogue_begin = entry.is_epilogue_begin;
|
||
line_entry.is_terminal_entry = entry.is_terminal_entry;
|
||
return true;
|
||
}
|
||
}
|
||
return false;
|
||
}
|
||
|
||
uint32_t
|
||
LineTable::FindLineEntryIndexByFileIndex
|
||
(
|
||
uint32_t start_idx,
|
||
const std::vector<uint32_t> &file_indexes,
|
||
uint32_t line,
|
||
bool exact,
|
||
LineEntry* line_entry_ptr
|
||
)
|
||
{
|
||
|
||
const size_t count = m_entries.size();
|
||
std::vector<uint32_t>::const_iterator begin_pos = file_indexes.begin();
|
||
std::vector<uint32_t>::const_iterator end_pos = file_indexes.end();
|
||
size_t best_match = UINT32_MAX;
|
||
|
||
for (size_t idx = start_idx; idx < count; ++idx)
|
||
{
|
||
// Skip line table rows that terminate the previous row (is_terminal_entry is non-zero)
|
||
if (m_entries[idx].is_terminal_entry)
|
||
continue;
|
||
|
||
if (find (begin_pos, end_pos, m_entries[idx].file_idx) == end_pos)
|
||
continue;
|
||
|
||
// Exact match always wins. Otherwise try to find the closest line > the desired
|
||
// line.
|
||
// FIXME: Maybe want to find the line closest before and the line closest after and
|
||
// if they're not in the same function, don't return a match.
|
||
|
||
if (m_entries[idx].line < line)
|
||
{
|
||
continue;
|
||
}
|
||
else if (m_entries[idx].line == line)
|
||
{
|
||
if (line_entry_ptr)
|
||
ConvertEntryAtIndexToLineEntry (idx, *line_entry_ptr);
|
||
return idx;
|
||
}
|
||
else if (!exact)
|
||
{
|
||
if (best_match == UINT32_MAX)
|
||
best_match = idx;
|
||
else if (m_entries[idx].line < m_entries[best_match].line)
|
||
best_match = idx;
|
||
}
|
||
}
|
||
|
||
if (best_match != UINT32_MAX)
|
||
{
|
||
if (line_entry_ptr)
|
||
ConvertEntryAtIndexToLineEntry (best_match, *line_entry_ptr);
|
||
return best_match;
|
||
}
|
||
return UINT32_MAX;
|
||
}
|
||
|
||
uint32_t
|
||
LineTable::FindLineEntryIndexByFileIndex (uint32_t start_idx, uint32_t file_idx, uint32_t line, bool exact, LineEntry* line_entry_ptr)
|
||
{
|
||
const size_t count = m_entries.size();
|
||
size_t best_match = UINT32_MAX;
|
||
|
||
for (size_t idx = start_idx; idx < count; ++idx)
|
||
{
|
||
// Skip line table rows that terminate the previous row (is_terminal_entry is non-zero)
|
||
if (m_entries[idx].is_terminal_entry)
|
||
continue;
|
||
|
||
if (m_entries[idx].file_idx != file_idx)
|
||
continue;
|
||
|
||
// Exact match always wins. Otherwise try to find the closest line > the desired
|
||
// line.
|
||
// FIXME: Maybe want to find the line closest before and the line closest after and
|
||
// if they're not in the same function, don't return a match.
|
||
|
||
if (m_entries[idx].line < line)
|
||
{
|
||
continue;
|
||
}
|
||
else if (m_entries[idx].line == line)
|
||
{
|
||
if (line_entry_ptr)
|
||
ConvertEntryAtIndexToLineEntry (idx, *line_entry_ptr);
|
||
return idx;
|
||
}
|
||
else if (!exact)
|
||
{
|
||
if (best_match == UINT32_MAX)
|
||
best_match = idx;
|
||
else if (m_entries[idx].line < m_entries[best_match].line)
|
||
best_match = idx;
|
||
}
|
||
}
|
||
|
||
if (best_match != UINT32_MAX)
|
||
{
|
||
if (line_entry_ptr)
|
||
ConvertEntryAtIndexToLineEntry (best_match, *line_entry_ptr);
|
||
return best_match;
|
||
}
|
||
return UINT32_MAX;
|
||
}
|
||
|
||
size_t
|
||
LineTable::FineLineEntriesForFileIndex (uint32_t file_idx,
|
||
bool append,
|
||
SymbolContextList &sc_list)
|
||
{
|
||
|
||
if (!append)
|
||
sc_list.Clear();
|
||
|
||
size_t num_added = 0;
|
||
const size_t count = m_entries.size();
|
||
if (count > 0)
|
||
{
|
||
SymbolContext sc (m_comp_unit);
|
||
|
||
for (size_t idx = 0; idx < count; ++idx)
|
||
{
|
||
// Skip line table rows that terminate the previous row (is_terminal_entry is non-zero)
|
||
if (m_entries[idx].is_terminal_entry)
|
||
continue;
|
||
|
||
if (m_entries[idx].file_idx == file_idx)
|
||
{
|
||
if (ConvertEntryAtIndexToLineEntry (idx, sc.line_entry))
|
||
{
|
||
++num_added;
|
||
sc_list.Append(sc);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
return num_added;
|
||
}
|
||
|
||
|
||
void
|
||
LineTable::Dump (Stream *s, Target *target, Address::DumpStyle style, Address::DumpStyle fallback_style, bool show_line_ranges)
|
||
{
|
||
const size_t count = m_entries.size();
|
||
LineEntry line_entry;
|
||
FileSpec prev_file;
|
||
for (size_t idx = 0; idx < count; ++idx)
|
||
{
|
||
ConvertEntryAtIndexToLineEntry (idx, line_entry);
|
||
line_entry.Dump (s, target, prev_file != line_entry.file, style, fallback_style, show_line_ranges);
|
||
s->EOL();
|
||
prev_file = line_entry.file;
|
||
}
|
||
}
|
||
|
||
|
||
void
|
||
LineTable::GetDescription (Stream *s, Target *target, DescriptionLevel level)
|
||
{
|
||
const size_t count = m_entries.size();
|
||
LineEntry line_entry;
|
||
for (size_t idx = 0; idx < count; ++idx)
|
||
{
|
||
ConvertEntryAtIndexToLineEntry (idx, line_entry);
|
||
line_entry.GetDescription (s, level, m_comp_unit, target, true);
|
||
s->EOL();
|
||
}
|
||
}
|
||
|
||
size_t
|
||
LineTable::GetContiguousFileAddressRanges (FileAddressRanges &file_ranges, bool append)
|
||
{
|
||
if (!append)
|
||
file_ranges.Clear();
|
||
const size_t initial_count = file_ranges.GetSize();
|
||
|
||
const size_t count = m_entries.size();
|
||
LineEntry line_entry;
|
||
FileAddressRanges::Entry range (LLDB_INVALID_ADDRESS, 0);
|
||
for (size_t idx = 0; idx < count; ++idx)
|
||
{
|
||
const Entry& entry = m_entries[idx];
|
||
|
||
if (entry.is_terminal_entry)
|
||
{
|
||
if (range.GetRangeBase() != LLDB_INVALID_ADDRESS)
|
||
{
|
||
range.SetRangeEnd(entry.file_addr);
|
||
file_ranges.Append(range);
|
||
range.Clear(LLDB_INVALID_ADDRESS);
|
||
}
|
||
}
|
||
else if (range.GetRangeBase() == LLDB_INVALID_ADDRESS)
|
||
{
|
||
range.SetRangeBase(entry.file_addr);
|
||
}
|
||
}
|
||
return file_ranges.GetSize() - initial_count;
|
||
}
|
||
|
||
LineTable *
|
||
LineTable::LinkLineTable (const FileRangeMap &file_range_map)
|
||
{
|
||
std::unique_ptr<LineTable> line_table_ap (new LineTable (m_comp_unit));
|
||
LineSequenceImpl sequence;
|
||
const size_t count = m_entries.size();
|
||
LineEntry line_entry;
|
||
const FileRangeMap::Entry *file_range_entry = nullptr;
|
||
const FileRangeMap::Entry *prev_file_range_entry = nullptr;
|
||
lldb::addr_t prev_file_addr = LLDB_INVALID_ADDRESS;
|
||
bool prev_entry_was_linked = false;
|
||
bool range_changed = false;
|
||
for (size_t idx = 0; idx < count; ++idx)
|
||
{
|
||
const Entry& entry = m_entries[idx];
|
||
|
||
const bool end_sequence = entry.is_terminal_entry;
|
||
const lldb::addr_t lookup_file_addr = entry.file_addr - (end_sequence ? 1 : 0);
|
||
if (file_range_entry == nullptr || !file_range_entry->Contains(lookup_file_addr))
|
||
{
|
||
prev_file_range_entry = file_range_entry;
|
||
file_range_entry = file_range_map.FindEntryThatContains(lookup_file_addr);
|
||
range_changed = true;
|
||
}
|
||
|
||
lldb::addr_t prev_end_entry_linked_file_addr = LLDB_INVALID_ADDRESS;
|
||
lldb::addr_t entry_linked_file_addr = LLDB_INVALID_ADDRESS;
|
||
|
||
bool terminate_previous_entry = false;
|
||
if (file_range_entry)
|
||
{
|
||
entry_linked_file_addr = entry.file_addr - file_range_entry->GetRangeBase() + file_range_entry->data;
|
||
// Determine if we need to terminate the previous entry when the previous
|
||
// entry was not contiguous with this one after being linked.
|
||
if (range_changed && prev_file_range_entry)
|
||
{
|
||
prev_end_entry_linked_file_addr = std::min<lldb::addr_t>(entry.file_addr, prev_file_range_entry->GetRangeEnd()) - prev_file_range_entry->GetRangeBase() + prev_file_range_entry->data;
|
||
if (prev_end_entry_linked_file_addr != entry_linked_file_addr)
|
||
terminate_previous_entry = prev_entry_was_linked;
|
||
}
|
||
}
|
||
else if (prev_entry_was_linked)
|
||
{
|
||
// This entry doesn't have a remapping and it needs to be removed.
|
||
// Watch out in case we need to terminate a previous entry needs to
|
||
// be terminated now that one line entry in a sequence is not longer valid.
|
||
if (!sequence.m_entries.empty() &&
|
||
!sequence.m_entries.back().is_terminal_entry)
|
||
{
|
||
terminate_previous_entry = true;
|
||
}
|
||
}
|
||
|
||
if (terminate_previous_entry && !sequence.m_entries.empty())
|
||
{
|
||
assert (prev_file_addr != LLDB_INVALID_ADDRESS);
|
||
sequence.m_entries.push_back(sequence.m_entries.back());
|
||
if (prev_end_entry_linked_file_addr == LLDB_INVALID_ADDRESS)
|
||
prev_end_entry_linked_file_addr = std::min<lldb::addr_t>(entry.file_addr,prev_file_range_entry->GetRangeEnd()) - prev_file_range_entry->GetRangeBase() + prev_file_range_entry->data;
|
||
sequence.m_entries.back().file_addr = prev_end_entry_linked_file_addr;
|
||
sequence.m_entries.back().is_terminal_entry = true;
|
||
|
||
// Append the sequence since we just terminated the previous one
|
||
line_table_ap->InsertSequence (&sequence);
|
||
sequence.Clear();
|
||
}
|
||
|
||
// Now link the current entry
|
||
if (file_range_entry)
|
||
{
|
||
// This entry has an address remapping and it needs to have its address relinked
|
||
sequence.m_entries.push_back(entry);
|
||
sequence.m_entries.back().file_addr = entry_linked_file_addr;
|
||
}
|
||
|
||
// If we have items in the sequence and the last entry is a terminal entry,
|
||
// insert this sequence into our new line table.
|
||
if (!sequence.m_entries.empty() && sequence.m_entries.back().is_terminal_entry)
|
||
{
|
||
line_table_ap->InsertSequence (&sequence);
|
||
sequence.Clear();
|
||
prev_entry_was_linked = false;
|
||
}
|
||
else
|
||
{
|
||
prev_entry_was_linked = file_range_entry != nullptr;
|
||
}
|
||
prev_file_addr = entry.file_addr;
|
||
range_changed = false;
|
||
}
|
||
if (line_table_ap->m_entries.empty())
|
||
return nullptr;
|
||
return line_table_ap.release();
|
||
}
|
||
|
||
|
||
|
||
|