llvm-project/lldb/source/Core/FormatEntity.cpp

2533 lines
98 KiB
C++

//===-- FormatEntity.cpp ----------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/StringRef.h"
#include "lldb/Core/FormatEntity.h"
#include "lldb/Core/Address.h"
#include "lldb/Core/Debugger.h"
#include "lldb/Core/Module.h"
#include "lldb/Core/Stream.h"
#include "lldb/Core/StreamString.h"
#include "lldb/Core/ValueObject.h"
#include "lldb/Core/ValueObjectVariable.h"
#include "lldb/DataFormatters/DataVisualization.h"
#include "lldb/DataFormatters/FormatManager.h"
#include "lldb/Host/FileSpec.h"
#include "lldb/Interpreter/CommandInterpreter.h"
#include "lldb/Symbol/Block.h"
#include "lldb/Symbol/CompileUnit.h"
#include "lldb/Symbol/Function.h"
#include "lldb/Symbol/LineEntry.h"
#include "lldb/Symbol/Symbol.h"
#include "lldb/Symbol/VariableList.h"
#include "lldb/Target/ExecutionContext.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/RegisterContext.h"
#include "lldb/Target/SectionLoadList.h"
#include "lldb/Target/StackFrame.h"
#include "lldb/Target/StopInfo.h"
#include "lldb/Target/Target.h"
#include "lldb/Target/Thread.h"
#include "lldb/Utility/AnsiTerminal.h"
using namespace lldb;
using namespace lldb_private;
enum FileKind
{
FileError = 0,
Basename,
Dirname,
Fullpath
};
#define ENTRY(n,t,f) { n, NULL, FormatEntity::Entry::Type::t, FormatEntity::Entry::FormatType::f, 0,0,NULL, false}
#define ENTRY_VALUE(n,t,f,v) { n, NULL, FormatEntity::Entry::Type::t, FormatEntity::Entry::FormatType::f, v,0,NULL, false}
#define ENTRY_CHILDREN(n,t,f,c) { n, NULL, FormatEntity::Entry::Type::t, FormatEntity::Entry::FormatType::f, 0,llvm::array_lengthof(c),c, false}
#define ENTRY_CHILDREN_KEEP_SEP(n,t,f,c) { n, NULL, FormatEntity::Entry::Type::t, FormatEntity::Entry::FormatType::f, 0,llvm::array_lengthof(c),c, true}
#define ENTRY_STRING(n,s) { n, s, FormatEntity::Entry::Type::InsertString, FormatEntity::Entry::FormatType::None, 0,0, NULL, false}
static FormatEntity::Entry::Definition g_string_entry[] =
{
ENTRY("*", ParentString, None)
};
static FormatEntity::Entry::Definition g_addr_entries[] =
{
ENTRY ("load", AddressLoad , UInt64),
ENTRY ("file", AddressFile , UInt64),
ENTRY ("load", AddressLoadOrFile, UInt64),
};
static FormatEntity::Entry::Definition g_file_child_entries[] =
{
ENTRY_VALUE("basename", ParentNumber, CString, FileKind::Basename),
ENTRY_VALUE("dirname", ParentNumber, CString, FileKind::Dirname),
ENTRY_VALUE("fullpath", ParentNumber, CString, FileKind::Fullpath)
};
static FormatEntity::Entry::Definition g_frame_child_entries[] =
{
ENTRY ("index", FrameIndex , UInt32),
ENTRY ("pc" , FrameRegisterPC , UInt64),
ENTRY ("fp" , FrameRegisterFP , UInt64),
ENTRY ("sp" , FrameRegisterSP , UInt64),
ENTRY ("flags", FrameRegisterFlags, UInt64),
ENTRY_CHILDREN ("reg", FrameRegisterByName, UInt64, g_string_entry),
};
static FormatEntity::Entry::Definition g_function_child_entries[] =
{
ENTRY ("id" , FunctionID , UInt64),
ENTRY ("name" , FunctionName , CString),
ENTRY ("name-without-args" , FunctionNameNoArgs , CString),
ENTRY ("name-with-args" , FunctionNameWithArgs , CString),
ENTRY ("addr-offset" , FunctionAddrOffset , UInt64),
ENTRY ("concrete-only-addr-offset-no-padding", FunctionAddrOffsetConcrete, UInt64),
ENTRY ("line-offset" , FunctionLineOffset , UInt64),
ENTRY ("pc-offset" , FunctionPCOffset , UInt64),
ENTRY ("initial-function" , FunctionInitial , None),
ENTRY ("changed" , FunctionChanged , None)
};
static FormatEntity::Entry::Definition g_line_child_entries[] =
{
ENTRY_CHILDREN("file", LineEntryFile , None , g_file_child_entries),
ENTRY("number" , LineEntryLineNumber , UInt32),
ENTRY("start-addr" , LineEntryStartAddress, UInt64),
ENTRY("end-addr" , LineEntryEndAddress , UInt64),
};
static FormatEntity::Entry::Definition g_module_child_entries[] =
{
ENTRY_CHILDREN("file", ModuleFile, None, g_file_child_entries),
};
static FormatEntity::Entry::Definition g_process_child_entries[] =
{
ENTRY ( "id" , ProcessID , UInt64 ),
ENTRY_VALUE ( "name" , ProcessFile , CString , FileKind::Basename),
ENTRY_CHILDREN ( "file" , ProcessFile , None , g_file_child_entries),
};
static FormatEntity::Entry::Definition g_svar_child_entries[] =
{
ENTRY ( "*" , ParentString , None)
};
static FormatEntity::Entry::Definition g_var_child_entries[] =
{
ENTRY ( "*" , ParentString , None)
};
static FormatEntity::Entry::Definition g_thread_child_entries[] =
{
ENTRY ( "id" , ThreadID , UInt64 ),
ENTRY ( "protocol_id" , ThreadProtocolID , UInt64 ),
ENTRY ( "index" , ThreadIndexID , UInt32 ),
ENTRY_CHILDREN ( "info" , ThreadInfo , None , g_string_entry),
ENTRY ( "queue" , ThreadQueue , CString ),
ENTRY ( "name" , ThreadName , CString ),
ENTRY ( "stop-reason" , ThreadStopReason , CString ),
ENTRY ( "return-value" , ThreadReturnValue , CString ),
ENTRY ( "completed-expression", ThreadCompletedExpression , CString ),
};
static FormatEntity::Entry::Definition g_target_child_entries[] =
{
ENTRY ( "arch" , TargetArch , CString ),
};
#define _TO_STR2(_val) #_val
#define _TO_STR(_val) _TO_STR2(_val)
static FormatEntity::Entry::Definition g_ansi_fg_entries[] =
{
ENTRY_STRING ("black" , ANSI_ESC_START _TO_STR(ANSI_FG_COLOR_BLACK) ANSI_ESC_END),
ENTRY_STRING ("red" , ANSI_ESC_START _TO_STR(ANSI_FG_COLOR_RED) ANSI_ESC_END),
ENTRY_STRING ("green" , ANSI_ESC_START _TO_STR(ANSI_FG_COLOR_GREEN) ANSI_ESC_END),
ENTRY_STRING ("yellow" , ANSI_ESC_START _TO_STR(ANSI_FG_COLOR_YELLOW) ANSI_ESC_END),
ENTRY_STRING ("blue" , ANSI_ESC_START _TO_STR(ANSI_FG_COLOR_BLUE) ANSI_ESC_END),
ENTRY_STRING ("purple" , ANSI_ESC_START _TO_STR(ANSI_FG_COLOR_PURPLE) ANSI_ESC_END),
ENTRY_STRING ("cyan" , ANSI_ESC_START _TO_STR(ANSI_FG_COLOR_CYAN) ANSI_ESC_END),
ENTRY_STRING ("white" , ANSI_ESC_START _TO_STR(ANSI_FG_COLOR_WHITE) ANSI_ESC_END),
};
static FormatEntity::Entry::Definition g_ansi_bg_entries[] =
{
ENTRY_STRING ("black" , ANSI_ESC_START _TO_STR(ANSI_BG_COLOR_BLACK) ANSI_ESC_END),
ENTRY_STRING ("red" , ANSI_ESC_START _TO_STR(ANSI_BG_COLOR_RED) ANSI_ESC_END),
ENTRY_STRING ("green" , ANSI_ESC_START _TO_STR(ANSI_BG_COLOR_GREEN) ANSI_ESC_END),
ENTRY_STRING ("yellow" , ANSI_ESC_START _TO_STR(ANSI_BG_COLOR_YELLOW) ANSI_ESC_END),
ENTRY_STRING ("blue" , ANSI_ESC_START _TO_STR(ANSI_BG_COLOR_BLUE) ANSI_ESC_END),
ENTRY_STRING ("purple" , ANSI_ESC_START _TO_STR(ANSI_BG_COLOR_PURPLE) ANSI_ESC_END),
ENTRY_STRING ("cyan" , ANSI_ESC_START _TO_STR(ANSI_BG_COLOR_CYAN) ANSI_ESC_END),
ENTRY_STRING ("white" , ANSI_ESC_START _TO_STR(ANSI_BG_COLOR_WHITE) ANSI_ESC_END),
};
static FormatEntity::Entry::Definition g_ansi_entries[] =
{
ENTRY_CHILDREN ( "fg" , Invalid , None , g_ansi_fg_entries),
ENTRY_CHILDREN ( "bg" , Invalid , None , g_ansi_bg_entries),
ENTRY_STRING ( "normal" , ANSI_ESC_START _TO_STR(ANSI_CTRL_NORMAL) ANSI_ESC_END),
ENTRY_STRING ( "bold" , ANSI_ESC_START _TO_STR(ANSI_CTRL_BOLD) ANSI_ESC_END),
ENTRY_STRING ( "faint" , ANSI_ESC_START _TO_STR(ANSI_CTRL_FAINT) ANSI_ESC_END),
ENTRY_STRING ( "italic" , ANSI_ESC_START _TO_STR(ANSI_CTRL_ITALIC) ANSI_ESC_END),
ENTRY_STRING ( "underline" , ANSI_ESC_START _TO_STR(ANSI_CTRL_UNDERLINE) ANSI_ESC_END),
ENTRY_STRING ( "slow-blink" , ANSI_ESC_START _TO_STR(ANSI_CTRL_SLOW_BLINK) ANSI_ESC_END),
ENTRY_STRING ( "fast-blink" , ANSI_ESC_START _TO_STR(ANSI_CTRL_FAST_BLINK) ANSI_ESC_END),
ENTRY_STRING ( "negative" , ANSI_ESC_START _TO_STR(ANSI_CTRL_IMAGE_NEGATIVE) ANSI_ESC_END),
ENTRY_STRING ( "conceal" , ANSI_ESC_START _TO_STR(ANSI_CTRL_CONCEAL) ANSI_ESC_END),
ENTRY_STRING ( "crossed-out" , ANSI_ESC_START _TO_STR(ANSI_CTRL_CROSSED_OUT) ANSI_ESC_END),
};
static FormatEntity::Entry::Definition g_script_child_entries[] =
{
ENTRY ( "frame" , ScriptFrame , None),
ENTRY ( "process" , ScriptProcess , None),
ENTRY ( "target" , ScriptTarget , None),
ENTRY ( "thread" , ScriptThread , None),
ENTRY ( "var" , ScriptVariable , None),
ENTRY ( "svar" , ScriptVariableSynthetic , None),
ENTRY ( "thread" , ScriptThread , None),
};
static FormatEntity::Entry::Definition g_top_level_entries[] =
{
ENTRY_CHILDREN ("addr" , AddressLoadOrFile , UInt64 , g_addr_entries),
ENTRY ("addr-file-or-load" , AddressLoadOrFile , UInt64 ),
ENTRY_CHILDREN ("ansi" , Invalid , None , g_ansi_entries),
ENTRY ("current-pc-arrow" , CurrentPCArrow , CString ),
ENTRY_CHILDREN ("file" , File , CString , g_file_child_entries),
ENTRY_CHILDREN ("frame" , Invalid , None , g_frame_child_entries),
ENTRY_CHILDREN ("function" , Invalid , None , g_function_child_entries),
ENTRY_CHILDREN ("line" , Invalid , None , g_line_child_entries),
ENTRY_CHILDREN ("module" , Invalid , None , g_module_child_entries),
ENTRY_CHILDREN ("process" , Invalid , None , g_process_child_entries),
ENTRY_CHILDREN ("script" , Invalid , None , g_script_child_entries),
ENTRY_CHILDREN_KEEP_SEP ("svar" , VariableSynthetic , None , g_svar_child_entries),
ENTRY_CHILDREN ("thread" , Invalid , None , g_thread_child_entries),
ENTRY_CHILDREN ("target" , Invalid , None , g_target_child_entries),
ENTRY_CHILDREN_KEEP_SEP ("var" , Variable , None , g_var_child_entries),
};
static FormatEntity::Entry::Definition g_root = ENTRY_CHILDREN ("<root>", Root, None, g_top_level_entries);
FormatEntity::Entry::Entry (llvm::StringRef s) :
string (s.data(), s.size()),
printf_format (),
children (),
definition (NULL),
type (Type::String),
fmt (lldb::eFormatDefault),
number (0),
deref (false)
{
}
FormatEntity::Entry::Entry (char ch) :
string (1, ch),
printf_format (),
children (),
definition (NULL),
type (Type::String),
fmt (lldb::eFormatDefault),
number (0),
deref (false)
{
}
void
FormatEntity::Entry::AppendChar (char ch)
{
if (children.empty() || children.back().type != Entry::Type::String)
children.push_back(Entry(ch));
else
children.back().string.append(1, ch);
}
void
FormatEntity::Entry::AppendText (const llvm::StringRef &s)
{
if (children.empty() || children.back().type != Entry::Type::String)
children.push_back(Entry(s));
else
children.back().string.append(s.data(), s.size());
}
void
FormatEntity::Entry::AppendText (const char *cstr)
{
return AppendText (llvm::StringRef(cstr));
}
Error
FormatEntity::Parse (const llvm::StringRef &format_str, Entry &entry)
{
entry.Clear();
entry.type = Entry::Type::Root;
llvm::StringRef modifiable_format (format_str);
return ParseInternal (modifiable_format, entry, 0);
}
#define ENUM_TO_CSTR(eee) case FormatEntity::Entry::Type::eee: return #eee
const char *
FormatEntity::Entry::TypeToCString (Type t)
{
switch (t)
{
ENUM_TO_CSTR(Invalid);
ENUM_TO_CSTR(ParentNumber);
ENUM_TO_CSTR(ParentString);
ENUM_TO_CSTR(InsertString);
ENUM_TO_CSTR(Root);
ENUM_TO_CSTR(String);
ENUM_TO_CSTR(Scope);
ENUM_TO_CSTR(Variable);
ENUM_TO_CSTR(VariableSynthetic);
ENUM_TO_CSTR(ScriptVariable);
ENUM_TO_CSTR(ScriptVariableSynthetic);
ENUM_TO_CSTR(AddressLoad);
ENUM_TO_CSTR(AddressFile);
ENUM_TO_CSTR(AddressLoadOrFile);
ENUM_TO_CSTR(ProcessID);
ENUM_TO_CSTR(ProcessFile);
ENUM_TO_CSTR(ScriptProcess);
ENUM_TO_CSTR(ThreadID);
ENUM_TO_CSTR(ThreadProtocolID);
ENUM_TO_CSTR(ThreadIndexID);
ENUM_TO_CSTR(ThreadName);
ENUM_TO_CSTR(ThreadQueue);
ENUM_TO_CSTR(ThreadStopReason);
ENUM_TO_CSTR(ThreadReturnValue);
ENUM_TO_CSTR(ThreadCompletedExpression);
ENUM_TO_CSTR(ScriptThread);
ENUM_TO_CSTR(ThreadInfo);
ENUM_TO_CSTR(TargetArch);
ENUM_TO_CSTR(ScriptTarget);
ENUM_TO_CSTR(ModuleFile);
ENUM_TO_CSTR(File);
ENUM_TO_CSTR(FrameIndex);
ENUM_TO_CSTR(FrameRegisterPC);
ENUM_TO_CSTR(FrameRegisterSP);
ENUM_TO_CSTR(FrameRegisterFP);
ENUM_TO_CSTR(FrameRegisterFlags);
ENUM_TO_CSTR(FrameRegisterByName);
ENUM_TO_CSTR(ScriptFrame);
ENUM_TO_CSTR(FunctionID);
ENUM_TO_CSTR(FunctionDidChange);
ENUM_TO_CSTR(FunctionInitialFunction);
ENUM_TO_CSTR(FunctionName);
ENUM_TO_CSTR(FunctionNameWithArgs);
ENUM_TO_CSTR(FunctionNameNoArgs);
ENUM_TO_CSTR(FunctionAddrOffset);
ENUM_TO_CSTR(FunctionAddrOffsetConcrete);
ENUM_TO_CSTR(FunctionLineOffset);
ENUM_TO_CSTR(FunctionPCOffset);
ENUM_TO_CSTR(FunctionInitial);
ENUM_TO_CSTR(FunctionChanged);
ENUM_TO_CSTR(LineEntryFile);
ENUM_TO_CSTR(LineEntryLineNumber);
ENUM_TO_CSTR(LineEntryStartAddress);
ENUM_TO_CSTR(LineEntryEndAddress);
ENUM_TO_CSTR(CurrentPCArrow);
}
return "???";
}
#undef ENUM_TO_CSTR
void
FormatEntity::Entry::Dump (Stream &s, int depth) const
{
s.Printf ("%*.*s%-20s: ", depth * 2, depth * 2, "", TypeToCString(type));
if (fmt != eFormatDefault)
s.Printf ("lldb-format = %s, ", FormatManager::GetFormatAsCString (fmt));
if (!string.empty())
s.Printf ("string = \"%s\"", string.c_str());
if (!printf_format.empty())
s.Printf ("printf_format = \"%s\"", printf_format.c_str());
if (number != 0)
s.Printf ("number = %" PRIu64 " (0x%" PRIx64 "), ", number, number);
if (deref)
s.Printf ("deref = true, ");
s.EOL();
for (const auto &child : children)
{
child.Dump(s, depth + 1);
}
}
template <typename T>
static bool RunScriptFormatKeyword(Stream &s,
const SymbolContext *sc,
const ExecutionContext *exe_ctx,
T t,
const char *script_function_name)
{
Target *target = Target::GetTargetFromContexts (exe_ctx, sc);
if (target)
{
ScriptInterpreter *script_interpreter = target->GetDebugger().GetCommandInterpreter().GetScriptInterpreter();
if (script_interpreter)
{
Error error;
std::string script_output;
if (script_interpreter->RunScriptFormatKeyword(script_function_name, t, script_output, error) && error.Success())
{
s.Printf("%s", script_output.c_str());
return true;
}
else
{
s.Printf("<error: %s>",error.AsCString());
}
}
}
return false;
}
static bool
DumpAddress (Stream &s,
const SymbolContext *sc,
const ExecutionContext *exe_ctx,
const Address &addr,
bool print_file_addr_or_load_addr)
{
Target *target = Target::GetTargetFromContexts (exe_ctx, sc);
addr_t vaddr = LLDB_INVALID_ADDRESS;
if (exe_ctx && !target->GetSectionLoadList().IsEmpty())
vaddr = addr.GetLoadAddress (target);
if (vaddr == LLDB_INVALID_ADDRESS)
vaddr = addr.GetFileAddress ();
if (vaddr != LLDB_INVALID_ADDRESS)
{
int addr_width = 0;
if (exe_ctx && target)
{
addr_width = target->GetArchitecture().GetAddressByteSize() * 2;
}
if (addr_width == 0)
addr_width = 16;
if (print_file_addr_or_load_addr)
{
ExecutionContextScope *exe_scope = NULL;
if (exe_ctx)
exe_scope = exe_ctx->GetBestExecutionContextScope();
addr.Dump (&s, exe_scope, Address::DumpStyleLoadAddress, Address::DumpStyleModuleWithFileAddress, 0);
}
else
{
s.Printf("0x%*.*" PRIx64, addr_width, addr_width, vaddr);
}
return true;
}
return false;
}
static bool
DumpAddressOffsetFromFunction (Stream &s,
const SymbolContext *sc,
const ExecutionContext *exe_ctx,
const Address &format_addr,
bool concrete_only,
bool no_padding,
bool print_zero_offsets)
{
if (format_addr.IsValid())
{
Address func_addr;
if (sc)
{
if (sc->function)
{
func_addr = sc->function->GetAddressRange().GetBaseAddress();
if (sc->block && !concrete_only)
{
// Check to make sure we aren't in an inline
// function. If we are, use the inline block
// range that contains "format_addr" since
// blocks can be discontiguous.
Block *inline_block = sc->block->GetContainingInlinedBlock ();
AddressRange inline_range;
if (inline_block && inline_block->GetRangeContainingAddress (format_addr, inline_range))
func_addr = inline_range.GetBaseAddress();
}
}
else if (sc->symbol && sc->symbol->ValueIsAddress())
func_addr = sc->symbol->GetAddress();
}
if (func_addr.IsValid())
{
const char *addr_offset_padding = no_padding ? "" : " ";
if (func_addr.GetSection() == format_addr.GetSection())
{
addr_t func_file_addr = func_addr.GetFileAddress();
addr_t addr_file_addr = format_addr.GetFileAddress();
if (addr_file_addr > func_file_addr
|| (addr_file_addr == func_file_addr && print_zero_offsets))
{
s.Printf("%s+%s%" PRIu64, addr_offset_padding, addr_offset_padding, addr_file_addr - func_file_addr);
}
else if (addr_file_addr < func_file_addr)
{
s.Printf("%s-%s%" PRIu64, addr_offset_padding, addr_offset_padding, func_file_addr - addr_file_addr);
}
return true;
}
else
{
Target *target = Target::GetTargetFromContexts (exe_ctx, sc);
if (target)
{
addr_t func_load_addr = func_addr.GetLoadAddress (target);
addr_t addr_load_addr = format_addr.GetLoadAddress (target);
if (addr_load_addr > func_load_addr
|| (addr_load_addr == func_load_addr && print_zero_offsets))
{
s.Printf("%s+%s%" PRIu64, addr_offset_padding, addr_offset_padding, addr_load_addr - func_load_addr);
}
else if (addr_load_addr < func_load_addr)
{
s.Printf("%s-%s%" PRIu64, addr_offset_padding, addr_offset_padding, func_load_addr - addr_load_addr);
}
return true;
}
}
}
}
return false;
}
static bool
ScanBracketedRange (llvm::StringRef subpath,
size_t& close_bracket_index,
const char*& var_name_final_if_array_range,
int64_t& index_lower,
int64_t& index_higher)
{
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_TYPES));
close_bracket_index = llvm::StringRef::npos;
const size_t open_bracket_index = subpath.find('[');
if (open_bracket_index == llvm::StringRef::npos)
{
if (log)
log->Printf("[ScanBracketedRange] no bracketed range, skipping entirely");
return false;
}
close_bracket_index = subpath.find(']', open_bracket_index + 1);
if (close_bracket_index == llvm::StringRef::npos)
{
if (log)
log->Printf("[ScanBracketedRange] no bracketed range, skipping entirely");
return false;
}
else
{
var_name_final_if_array_range = subpath.data() + open_bracket_index;
if (close_bracket_index - open_bracket_index == 1)
{
if (log)
log->Printf("[ScanBracketedRange] '[]' detected.. going from 0 to end of data");
index_lower = 0;
}
else
{
const size_t separator_index = subpath.find('-', open_bracket_index + 1);
if (separator_index == llvm::StringRef::npos)
{
const char *index_lower_cstr = subpath.data() + open_bracket_index + 1;
index_lower = ::strtoul (index_lower_cstr, NULL, 0);
index_higher = index_lower;
if (log)
log->Printf("[ScanBracketedRange] [%" PRId64 "] detected, high index is same", index_lower);
}
else
{
const char *index_lower_cstr = subpath.data() + open_bracket_index + 1;
const char *index_higher_cstr = subpath.data() + separator_index + 1;
index_lower = ::strtoul (index_lower_cstr, NULL, 0);
index_higher = ::strtoul (index_higher_cstr, NULL, 0);
if (log)
log->Printf("[ScanBracketedRange] [%" PRId64 "-%" PRId64 "] detected", index_lower, index_higher);
}
if (index_lower > index_higher && index_higher > 0)
{
if (log)
log->Printf("[ScanBracketedRange] swapping indices");
const int64_t temp = index_lower;
index_lower = index_higher;
index_higher = temp;
}
}
}
return true;
}
static bool
DumpFile (Stream &s, const FileSpec &file, FileKind file_kind)
{
switch (file_kind)
{
case FileKind::FileError:
break;
case FileKind::Basename:
if (file.GetFilename())
{
s << file.GetFilename();
return true;
}
break;
case FileKind::Dirname:
if (file.GetDirectory())
{
s << file.GetDirectory();
return true;
}
break;
case FileKind::Fullpath:
if (file)
{
s << file;
return true;
}
break;
}
return false;
}
static bool
DumpRegister (Stream &s,
StackFrame *frame,
RegisterKind reg_kind,
uint32_t reg_num,
Format format)
{
if (frame)
{
RegisterContext *reg_ctx = frame->GetRegisterContext().get();
if (reg_ctx)
{
const uint32_t lldb_reg_num = reg_ctx->ConvertRegisterKindToRegisterNumber(reg_kind, reg_num);
if (lldb_reg_num != LLDB_INVALID_REGNUM)
{
const RegisterInfo *reg_info = reg_ctx->GetRegisterInfoAtIndex (lldb_reg_num);
if (reg_info)
{
RegisterValue reg_value;
if (reg_ctx->ReadRegister (reg_info, reg_value))
{
reg_value.Dump(&s, reg_info, false, false, format);
return true;
}
}
}
}
}
return false;
}
static ValueObjectSP
ExpandIndexedExpression (ValueObject* valobj,
size_t index,
StackFrame* frame,
bool deref_pointer)
{
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_TYPES));
const char* ptr_deref_format = "[%d]";
std::string ptr_deref_buffer(10,0);
::sprintf(&ptr_deref_buffer[0], ptr_deref_format, index);
if (log)
log->Printf("[ExpandIndexedExpression] name to deref: %s",ptr_deref_buffer.c_str());
const char* first_unparsed;
ValueObject::GetValueForExpressionPathOptions options;
ValueObject::ExpressionPathEndResultType final_value_type;
ValueObject::ExpressionPathScanEndReason reason_to_stop;
ValueObject::ExpressionPathAftermath what_next = (deref_pointer ? ValueObject::eExpressionPathAftermathDereference : ValueObject::eExpressionPathAftermathNothing);
ValueObjectSP item = valobj->GetValueForExpressionPath (ptr_deref_buffer.c_str(),
&first_unparsed,
&reason_to_stop,
&final_value_type,
options,
&what_next);
if (!item)
{
if (log)
log->Printf("[ExpandIndexedExpression] ERROR: unparsed portion = %s, why stopping = %d,"
" final_value_type %d",
first_unparsed, reason_to_stop, final_value_type);
}
else
{
if (log)
log->Printf("[ExpandIndexedExpression] ALL RIGHT: unparsed portion = %s, why stopping = %d,"
" final_value_type %d",
first_unparsed, reason_to_stop, final_value_type);
}
return item;
}
static char
ConvertValueObjectStyleToChar(ValueObject::ValueObjectRepresentationStyle style)
{
switch (style)
{
case ValueObject::eValueObjectRepresentationStyleLanguageSpecific: return '@';
case ValueObject::eValueObjectRepresentationStyleValue: return 'V';
case ValueObject::eValueObjectRepresentationStyleLocation: return 'L';
case ValueObject::eValueObjectRepresentationStyleSummary: return 'S';
case ValueObject::eValueObjectRepresentationStyleChildrenCount: return '#';
case ValueObject::eValueObjectRepresentationStyleType: return 'T';
case ValueObject::eValueObjectRepresentationStyleName: return 'N';
case ValueObject::eValueObjectRepresentationStyleExpressionPath: return '>';
}
return '\0';
}
static bool
DumpValue (Stream &s,
const SymbolContext *sc,
const ExecutionContext *exe_ctx,
const FormatEntity::Entry &entry,
ValueObject *valobj)
{
if (valobj == NULL)
return false;
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_TYPES));
Format custom_format = eFormatInvalid;
ValueObject::ValueObjectRepresentationStyle val_obj_display = entry.string.empty() ? ValueObject::eValueObjectRepresentationStyleValue : ValueObject::eValueObjectRepresentationStyleSummary;
bool do_deref_pointer = entry.deref;
bool is_script = false;
switch (entry.type)
{
case FormatEntity::Entry::Type::ScriptVariable:
is_script = true;
break;
case FormatEntity::Entry::Type::Variable:
custom_format = entry.fmt;
val_obj_display = (ValueObject::ValueObjectRepresentationStyle)entry.number;
break;
case FormatEntity::Entry::Type::ScriptVariableSynthetic:
is_script = true;
// Fall through
case FormatEntity::Entry::Type::VariableSynthetic:
custom_format = entry.fmt;
val_obj_display = (ValueObject::ValueObjectRepresentationStyle)entry.number;
if (!valobj->IsSynthetic())
{
valobj = valobj->GetSyntheticValue().get();
if (valobj == nullptr)
return false;
}
break;
default:
return false;
}
if (valobj == NULL)
return false;
ValueObject::ExpressionPathAftermath what_next = (do_deref_pointer ?
ValueObject::eExpressionPathAftermathDereference : ValueObject::eExpressionPathAftermathNothing);
ValueObject::GetValueForExpressionPathOptions options;
options.DontCheckDotVsArrowSyntax().DoAllowBitfieldSyntax().DoAllowFragileIVar().DoAllowSyntheticChildren();
ValueObject* target = NULL;
const char* var_name_final_if_array_range = NULL;
size_t close_bracket_index = llvm::StringRef::npos;
int64_t index_lower = -1;
int64_t index_higher = -1;
bool is_array_range = false;
const char* first_unparsed;
bool was_plain_var = false;
bool was_var_format = false;
bool was_var_indexed = false;
ValueObject::ExpressionPathScanEndReason reason_to_stop = ValueObject::eExpressionPathScanEndReasonEndOfString;
ValueObject::ExpressionPathEndResultType final_value_type = ValueObject::eExpressionPathEndResultTypePlain;
if (is_script)
{
return RunScriptFormatKeyword (s, sc, exe_ctx, valobj, entry.string.c_str());
}
llvm::StringRef subpath (entry.string);
// simplest case ${var}, just print valobj's value
if (entry.string.empty())
{
if (entry.printf_format.empty() && entry.fmt == eFormatDefault && entry.number == ValueObject::eValueObjectRepresentationStyleValue)
was_plain_var = true;
else
was_var_format = true;
target = valobj;
}
else // this is ${var.something} or multiple .something nested
{
if (entry.string[0] == '[')
was_var_indexed = true;
ScanBracketedRange (subpath,
close_bracket_index,
var_name_final_if_array_range,
index_lower,
index_higher);
Error error;
const std::string &expr_path = entry.string;
if (log)
log->Printf("[Debugger::FormatPrompt] symbol to expand: %s",expr_path.c_str());
target = valobj->GetValueForExpressionPath(expr_path.c_str(),
&first_unparsed,
&reason_to_stop,
&final_value_type,
options,
&what_next).get();
if (!target)
{
if (log)
log->Printf("[Debugger::FormatPrompt] ERROR: unparsed portion = %s, why stopping = %d,"
" final_value_type %d",
first_unparsed, reason_to_stop, final_value_type);
return false;
}
else
{
if (log)
log->Printf("[Debugger::FormatPrompt] ALL RIGHT: unparsed portion = %s, why stopping = %d,"
" final_value_type %d",
first_unparsed, reason_to_stop, final_value_type);
target = target->GetQualifiedRepresentationIfAvailable(target->GetDynamicValueType(), true).get();
}
}
is_array_range = (final_value_type == ValueObject::eExpressionPathEndResultTypeBoundedRange ||
final_value_type == ValueObject::eExpressionPathEndResultTypeUnboundedRange);
do_deref_pointer = (what_next == ValueObject::eExpressionPathAftermathDereference);
if (do_deref_pointer && !is_array_range)
{
// I have not deref-ed yet, let's do it
// this happens when we are not going through GetValueForVariableExpressionPath
// to get to the target ValueObject
Error error;
target = target->Dereference(error).get();
if (error.Fail())
{
if (log)
log->Printf("[Debugger::FormatPrompt] ERROR: %s\n", error.AsCString("unknown")); \
return false;
}
do_deref_pointer = false;
}
if (!target)
{
if (log)
log->Printf("[Debugger::FormatPrompt] could not calculate target for prompt expression");
return false;
}
// we do not want to use the summary for a bitfield of type T:n
// if we were originally dealing with just a T - that would get
// us into an endless recursion
if (target->IsBitfield() && was_var_indexed)
{
// TODO: check for a (T:n)-specific summary - we should still obey that
StreamString bitfield_name;
bitfield_name.Printf("%s:%d", target->GetTypeName().AsCString(), target->GetBitfieldBitSize());
lldb::TypeNameSpecifierImplSP type_sp(new TypeNameSpecifierImpl(bitfield_name.GetData(),false));
if (val_obj_display == ValueObject::eValueObjectRepresentationStyleSummary && !DataVisualization::GetSummaryForType(type_sp))
val_obj_display = ValueObject::eValueObjectRepresentationStyleValue;
}
// TODO use flags for these
const uint32_t type_info_flags = target->GetClangType().GetTypeInfo(NULL);
bool is_array = (type_info_flags & eTypeIsArray) != 0;
bool is_pointer = (type_info_flags & eTypeIsPointer) != 0;
bool is_aggregate = target->GetClangType().IsAggregateType();
if ((is_array || is_pointer) && (!is_array_range) && val_obj_display == ValueObject::eValueObjectRepresentationStyleValue) // this should be wrong, but there are some exceptions
{
StreamString str_temp;
if (log)
log->Printf("[Debugger::FormatPrompt] I am into array || pointer && !range");
if (target->HasSpecialPrintableRepresentation(val_obj_display, custom_format))
{
// try to use the special cases
bool success = target->DumpPrintableRepresentation(str_temp,
val_obj_display,
custom_format);
if (log)
log->Printf("[Debugger::FormatPrompt] special cases did%s match", success ? "" : "n't");
// should not happen
if (success)
s << str_temp.GetData();
return true;
}
else
{
if (was_plain_var) // if ${var}
{
s << target->GetTypeName() << " @ " << target->GetLocationAsCString();
}
else if (is_pointer) // if pointer, value is the address stored
{
target->DumpPrintableRepresentation (s,
val_obj_display,
custom_format,
ValueObject::ePrintableRepresentationSpecialCasesDisable);
}
return true;
}
}
// if directly trying to print ${var}, and this is an aggregate, display a nice
// type @ location message
if (is_aggregate && was_plain_var)
{
s << target->GetTypeName() << " @ " << target->GetLocationAsCString();
return true;
}
// if directly trying to print ${var%V}, and this is an aggregate, do not let the user do it
if (is_aggregate && ((was_var_format && val_obj_display == ValueObject::eValueObjectRepresentationStyleValue)))
{
s << "<invalid use of aggregate type>";
return true;
}
if (!is_array_range)
{
if (log)
log->Printf("[Debugger::FormatPrompt] dumping ordinary printable output");
return target->DumpPrintableRepresentation(s,val_obj_display, custom_format);
}
else
{
if (log)
log->Printf("[Debugger::FormatPrompt] checking if I can handle as array");
if (!is_array && !is_pointer)
return false;
if (log)
log->Printf("[Debugger::FormatPrompt] handle as array");
llvm::StringRef special_directions;
if (close_bracket_index != llvm::StringRef::npos && subpath.size() > close_bracket_index)
{
ConstString additional_data (subpath.drop_front(close_bracket_index+1));
StreamString special_directions_stream;
special_directions_stream.Printf("${%svar%s",
do_deref_pointer ? "*" : "",
additional_data.GetCString());
if (entry.fmt != eFormatDefault)
{
const char format_char = FormatManager::GetFormatAsFormatChar(entry.fmt);
if (format_char != '\0')
special_directions_stream.Printf("%%%c", format_char);
else
{
const char *format_cstr = FormatManager::GetFormatAsCString(entry.fmt);
special_directions_stream.Printf("%%%s", format_cstr);
}
}
else if (entry.number != 0)
{
const char style_char = ConvertValueObjectStyleToChar ((ValueObject::ValueObjectRepresentationStyle)entry.number);
if (style_char)
special_directions_stream.Printf("%%%c", style_char);
}
special_directions_stream.PutChar('}');
special_directions = llvm::StringRef(special_directions_stream.GetString());
}
// let us display items index_lower thru index_higher of this array
s.PutChar('[');
if (index_higher < 0)
index_higher = valobj->GetNumChildren() - 1;
uint32_t max_num_children = target->GetTargetSP()->GetMaximumNumberOfChildrenToDisplay();
bool success = true;
for (int64_t index = index_lower;index<=index_higher; ++index)
{
ValueObject* item = ExpandIndexedExpression (target,
index,
exe_ctx->GetFramePtr(),
false).get();
if (!item)
{
if (log)
log->Printf("[Debugger::FormatPrompt] ERROR in getting child item at index %" PRId64, index);
}
else
{
if (log)
log->Printf("[Debugger::FormatPrompt] special_directions for child item: %s",special_directions.data() ? special_directions.data() : "");
}
if (special_directions.empty())
{
success &= item->DumpPrintableRepresentation(s,val_obj_display, custom_format);
}
else
{
success &= FormatEntity::FormatStringRef(special_directions, s, sc, exe_ctx, NULL, item, false, false);
}
if (--max_num_children == 0)
{
s.PutCString(", ...");
break;
}
if (index < index_higher)
s.PutChar(',');
}
s.PutChar(']');
return success;
}
}
static bool
DumpRegister (Stream &s,
StackFrame *frame,
const char *reg_name,
Format format)
{
if (frame)
{
RegisterContext *reg_ctx = frame->GetRegisterContext().get();
if (reg_ctx)
{
const RegisterInfo *reg_info = reg_ctx->GetRegisterInfoByName(reg_name);
if (reg_info)
{
RegisterValue reg_value;
if (reg_ctx->ReadRegister (reg_info, reg_value))
{
reg_value.Dump(&s, reg_info, false, false, format);
return true;
}
}
}
}
return false;
}
static bool
FormatThreadExtendedInfoRecurse(const FormatEntity::Entry &entry,
const StructuredData::ObjectSP &thread_info_dictionary,
const SymbolContext *sc,
const ExecutionContext *exe_ctx,
Stream &s)
{
llvm::StringRef path(entry.string);
StructuredData::ObjectSP value = thread_info_dictionary->GetObjectForDotSeparatedPath (path);
if (value.get())
{
if (value->GetType() == StructuredData::Type::eTypeInteger)
{
const char *token_format = "0x%4.4" PRIx64;
if (!entry.printf_format.empty())
token_format = entry.printf_format.c_str();
s.Printf(token_format, value->GetAsInteger()->GetValue());
return true;
}
else if (value->GetType() == StructuredData::Type::eTypeFloat)
{
s.Printf ("%f", value->GetAsFloat()->GetValue());
return true;
}
else if (value->GetType() == StructuredData::Type::eTypeString)
{
s.Printf("%s", value->GetAsString()->GetValue().c_str());
return true;
}
else if (value->GetType() == StructuredData::Type::eTypeArray)
{
if (value->GetAsArray()->GetSize() > 0)
{
s.Printf ("%zu", value->GetAsArray()->GetSize());
return true;
}
}
else if (value->GetType() == StructuredData::Type::eTypeDictionary)
{
s.Printf ("%zu", value->GetAsDictionary()->GetKeys()->GetAsArray()->GetSize());
return true;
}
}
return false;
}
static inline bool
IsToken(const char *var_name_begin, const char *var)
{
return (::strncmp (var_name_begin, var, strlen(var)) == 0);
}
bool
FormatEntity::FormatStringRef (const llvm::StringRef &format_str,
Stream &s,
const SymbolContext *sc,
const ExecutionContext *exe_ctx,
const Address *addr,
ValueObject* valobj,
bool function_changed,
bool initial_function)
{
if (!format_str.empty())
{
FormatEntity::Entry root;
Error error = FormatEntity::Parse(format_str, root);
if (error.Success())
{
return FormatEntity::Format (root,
s,
sc,
exe_ctx,
addr,
valobj,
function_changed,
initial_function);
}
}
return false;
}
bool
FormatEntity::FormatCString (const char *format,
Stream &s,
const SymbolContext *sc,
const ExecutionContext *exe_ctx,
const Address *addr,
ValueObject* valobj,
bool function_changed,
bool initial_function)
{
if (format && format[0])
{
FormatEntity::Entry root;
llvm::StringRef format_str(format);
Error error = FormatEntity::Parse(format_str, root);
if (error.Success())
{
return FormatEntity::Format (root,
s,
sc,
exe_ctx,
addr,
valobj,
function_changed,
initial_function);
}
}
return false;
}
bool
FormatEntity::Format (const Entry &entry,
Stream &s,
const SymbolContext *sc,
const ExecutionContext *exe_ctx,
const Address *addr,
ValueObject* valobj,
bool function_changed,
bool initial_function)
{
switch (entry.type)
{
case Entry::Type::Invalid:
case Entry::Type::ParentNumber: // Only used for FormatEntity::Entry::Definition encoding
case Entry::Type::ParentString: // Only used for FormatEntity::Entry::Definition encoding
case Entry::Type::InsertString: // Only used for FormatEntity::Entry::Definition encoding
return false;
case Entry::Type::Root:
for (const auto &child : entry.children)
{
if (Format (child,
s,
sc,
exe_ctx,
addr,
valobj,
function_changed,
initial_function) == false)
{
return false; // If any item of root fails, then the formatting fails
}
}
return true; // Only return true if all items succeeded
case Entry::Type::String:
s.PutCString(entry.string.c_str());
return true;
case Entry::Type::Scope:
{
StreamString scope_stream;
bool success = false;
for (const auto &child : entry.children)
{
success = Format (child, scope_stream, sc, exe_ctx, addr, valobj, function_changed, initial_function);
if (!success)
break;
}
// Only if all items in a scope succeed, then do we
// print the output into the main stream
if (success)
s.Write(scope_stream.GetString().data(), scope_stream.GetString().size());
}
return true; // Scopes always successfully print themselves
case Entry::Type::Variable:
case Entry::Type::VariableSynthetic:
case Entry::Type::ScriptVariable:
case Entry::Type::ScriptVariableSynthetic:
if (DumpValue(s, sc, exe_ctx, entry, valobj))
return true;
return false;
case Entry::Type::AddressFile:
case Entry::Type::AddressLoad:
case Entry::Type::AddressLoadOrFile:
if (addr && addr->IsValid() && DumpAddress(s, sc, exe_ctx, *addr, entry.type == Entry::Type::AddressLoadOrFile))
return true;
return false;
case Entry::Type::ProcessID:
if (exe_ctx)
{
Process *process = exe_ctx->GetProcessPtr();
if (process)
{
const char *format = "%" PRIu64;
if (!entry.printf_format.empty())
format = entry.printf_format.c_str();
s.Printf(format, process->GetID());
return true;
}
}
return false;
case Entry::Type::ProcessFile:
if (exe_ctx)
{
Process *process = exe_ctx->GetProcessPtr();
if (process)
{
Module *exe_module = process->GetTarget().GetExecutableModulePointer();
if (exe_module)
{
if (DumpFile(s, exe_module->GetFileSpec(), (FileKind)entry.number))
return true;
}
}
}
return false;
case Entry::Type::ScriptProcess:
if (exe_ctx)
{
Process *process = exe_ctx->GetProcessPtr();
if (process)
return RunScriptFormatKeyword (s, sc, exe_ctx, process, entry.string.c_str());
}
return false;
case Entry::Type::ThreadID:
if (exe_ctx)
{
Thread *thread = exe_ctx->GetThreadPtr();
if (thread)
{
const char *format = "0x%4.4" PRIx64;
if (!entry.printf_format.empty())
{
// Watch for the special "tid" format...
if (entry.printf_format == "tid")
{
bool handled = false;
Target &target = thread->GetProcess()->GetTarget();
ArchSpec arch (target.GetArchitecture ());
llvm::Triple::OSType ostype = arch.IsValid() ? arch.GetTriple().getOS() : llvm::Triple::UnknownOS;
if ((ostype == llvm::Triple::FreeBSD) || (ostype == llvm::Triple::Linux))
{
handled = true;
format = "%" PRIu64;
}
}
else
{
format = entry.printf_format.c_str();
}
}
s.Printf(format, thread->GetID());
return true;
}
}
return false;
case Entry::Type::ThreadProtocolID:
if (exe_ctx)
{
Thread *thread = exe_ctx->GetThreadPtr();
if (thread)
{
const char *format = "0x%4.4" PRIx64;
if (!entry.printf_format.empty())
format = entry.printf_format.c_str();
s.Printf(format, thread->GetProtocolID());
return true;
}
}
return false;
case Entry::Type::ThreadIndexID:
if (exe_ctx)
{
Thread *thread = exe_ctx->GetThreadPtr();
if (thread)
{
const char *format = "%" PRIu32;
if (!entry.printf_format.empty())
format = entry.printf_format.c_str();
s.Printf(format, thread->GetIndexID());
return true;
}
}
return false;
case Entry::Type::ThreadName:
if (exe_ctx)
{
Thread *thread = exe_ctx->GetThreadPtr();
if (thread)
{
const char *cstr = thread->GetName();
if (cstr && cstr[0])
{
s.PutCString(cstr);
return true;
}
}
}
return false;
case Entry::Type::ThreadQueue:
if (exe_ctx)
{
Thread *thread = exe_ctx->GetThreadPtr();
if (thread)
{
const char *cstr = thread->GetQueueName();
if (cstr && cstr[0])
{
s.PutCString(cstr);
return true;
}
}
}
return false;
case Entry::Type::ThreadStopReason:
if (exe_ctx)
{
Thread *thread = exe_ctx->GetThreadPtr();
if (thread)
{
StopInfoSP stop_info_sp = thread->GetStopInfo ();
if (stop_info_sp && stop_info_sp->IsValid())
{
const char *cstr = stop_info_sp->GetDescription();
if (cstr && cstr[0])
{
s.PutCString(cstr);
return true;
}
}
}
}
return false;
case Entry::Type::ThreadReturnValue:
if (exe_ctx)
{
Thread *thread = exe_ctx->GetThreadPtr();
if (thread)
{
StopInfoSP stop_info_sp = thread->GetStopInfo ();
if (stop_info_sp && stop_info_sp->IsValid())
{
ValueObjectSP return_valobj_sp = StopInfo::GetReturnValueObject (stop_info_sp);
if (return_valobj_sp)
{
return_valobj_sp->Dump(s);
return true;
}
}
}
}
return false;
case Entry::Type::ThreadCompletedExpression:
if (exe_ctx)
{
Thread *thread = exe_ctx->GetThreadPtr();
if (thread)
{
StopInfoSP stop_info_sp = thread->GetStopInfo ();
if (stop_info_sp && stop_info_sp->IsValid())
{
ClangExpressionVariableSP expression_var_sp = StopInfo::GetExpressionVariable (stop_info_sp);
if (expression_var_sp && expression_var_sp->GetValueObject())
{
expression_var_sp->GetValueObject()->Dump(s);
return true;
}
}
}
}
return false;
case Entry::Type::ScriptThread:
if (exe_ctx)
{
Thread *thread = exe_ctx->GetThreadPtr();
if (thread)
return RunScriptFormatKeyword (s, sc, exe_ctx, thread, entry.string.c_str());
}
return false;
case Entry::Type::ThreadInfo:
if (exe_ctx)
{
Thread *thread = exe_ctx->GetThreadPtr();
if (thread)
{
StructuredData::ObjectSP object_sp = thread->GetExtendedInfo();
if (object_sp && object_sp->GetType() == StructuredData::Type::eTypeDictionary)
{
if (FormatThreadExtendedInfoRecurse (entry, object_sp, sc, exe_ctx, s))
return true;
}
}
}
return false;
case Entry::Type::TargetArch:
if (exe_ctx)
{
Target *target = exe_ctx->GetTargetPtr();
if (target)
{
const ArchSpec &arch = target->GetArchitecture ();
if (arch.IsValid())
{
s.PutCString (arch.GetArchitectureName());
return true;
}
}
}
return false;
case Entry::Type::ScriptTarget:
if (exe_ctx)
{
Target *target = exe_ctx->GetTargetPtr();
if (target)
return RunScriptFormatKeyword (s, sc, exe_ctx, target, entry.string.c_str());
}
return false;
case Entry::Type::ModuleFile:
if (sc)
{
Module *module = sc->module_sp.get();
if (module)
{
if (DumpFile(s, module->GetFileSpec(), (FileKind)entry.number))
return true;
}
}
return false;
case Entry::Type::File:
if (sc)
{
CompileUnit *cu = sc->comp_unit;
if (cu)
{
// CompileUnit is a FileSpec
if (DumpFile(s, *cu, (FileKind)entry.number))
return true;
}
}
return false;
case Entry::Type::FrameIndex:
if (exe_ctx)
{
StackFrame *frame = exe_ctx->GetFramePtr();
if (frame)
{
const char *format = "%" PRIu32;
if (!entry.printf_format.empty())
format = entry.printf_format.c_str();
s.Printf(format, frame->GetFrameIndex());
return true;
}
}
return false;
case Entry::Type::FrameRegisterPC:
if (exe_ctx)
{
StackFrame *frame = exe_ctx->GetFramePtr();
if (frame)
{
const Address &pc_addr = frame->GetFrameCodeAddress();
if (pc_addr.IsValid())
{
if (DumpAddress(s, sc, exe_ctx, pc_addr, false))
return true;
}
}
}
return false;
case Entry::Type::FrameRegisterSP:
if (exe_ctx)
{
StackFrame *frame = exe_ctx->GetFramePtr();
if (frame)
{
if (DumpRegister (s, frame, eRegisterKindGeneric, LLDB_REGNUM_GENERIC_SP, (lldb::Format)entry.number))
return true;
}
}
return false;
case Entry::Type::FrameRegisterFP:
if (exe_ctx)
{
StackFrame *frame = exe_ctx->GetFramePtr();
if (frame)
{
if (DumpRegister (s, frame, eRegisterKindGeneric, LLDB_REGNUM_GENERIC_FP, (lldb::Format)entry.number))
return true;
}
}
return false;
case Entry::Type::FrameRegisterFlags:
if (exe_ctx)
{
StackFrame *frame = exe_ctx->GetFramePtr();
if (frame)
{
if (DumpRegister (s, frame, eRegisterKindGeneric, LLDB_REGNUM_GENERIC_FLAGS, (lldb::Format)entry.number))
return true;
}
}
return false;
case Entry::Type::FrameRegisterByName:
if (exe_ctx)
{
StackFrame *frame = exe_ctx->GetFramePtr();
if (frame)
{
if (DumpRegister (s, frame, entry.string.c_str(), (lldb::Format)entry.number))
return true;
}
}
return false;
case Entry::Type::ScriptFrame:
if (exe_ctx)
{
StackFrame *frame = exe_ctx->GetFramePtr();
if (frame)
return RunScriptFormatKeyword (s, sc, exe_ctx, frame, entry.string.c_str());
}
return false;
case Entry::Type::FunctionID:
if (sc)
{
if (sc->function)
{
s.Printf("function{0x%8.8" PRIx64 "}", sc->function->GetID());
return true;
}
else if (sc->symbol)
{
s.Printf("symbol[%u]", sc->symbol->GetID());
return true;
}
}
return false;
case Entry::Type::FunctionDidChange:
return function_changed;
case Entry::Type::FunctionInitialFunction:
return initial_function;
case Entry::Type::FunctionName:
{
const char *name = NULL;
if (sc->function)
name = sc->function->GetName().AsCString (NULL);
else if (sc->symbol)
name = sc->symbol->GetName().AsCString (NULL);
if (name)
{
s.PutCString(name);
if (sc->block)
{
Block *inline_block = sc->block->GetContainingInlinedBlock ();
if (inline_block)
{
const InlineFunctionInfo *inline_info = sc->block->GetInlinedFunctionInfo();
if (inline_info)
{
s.PutCString(" [inlined] ");
inline_info->GetName().Dump(&s);
}
}
}
return true;
}
}
return false;
case Entry::Type::FunctionNameNoArgs:
{
ConstString name;
if (sc->function)
name = sc->function->GetMangled().GetName (Mangled::ePreferDemangledWithoutArguments);
else if (sc->symbol)
name = sc->symbol->GetMangled().GetName (Mangled::ePreferDemangledWithoutArguments);
if (name)
{
s.PutCString(name.GetCString());
return true;
}
}
return false;
case Entry::Type::FunctionNameWithArgs:
{
// Print the function name with arguments in it
if (sc->function)
{
ExecutionContextScope *exe_scope = exe_ctx ? exe_ctx->GetBestExecutionContextScope() : NULL;
const char *cstr = sc->function->GetName().AsCString (NULL);
if (cstr)
{
const InlineFunctionInfo *inline_info = NULL;
VariableListSP variable_list_sp;
bool get_function_vars = true;
if (sc->block)
{
Block *inline_block = sc->block->GetContainingInlinedBlock ();
if (inline_block)
{
get_function_vars = false;
inline_info = sc->block->GetInlinedFunctionInfo();
if (inline_info)
variable_list_sp = inline_block->GetBlockVariableList (true);
}
}
if (get_function_vars)
{
variable_list_sp = sc->function->GetBlock(true).GetBlockVariableList (true);
}
if (inline_info)
{
s.PutCString (cstr);
s.PutCString (" [inlined] ");
cstr = inline_info->GetName().GetCString();
}
VariableList args;
if (variable_list_sp)
variable_list_sp->AppendVariablesWithScope(eValueTypeVariableArgument, args);
if (args.GetSize() > 0)
{
const char *open_paren = strchr (cstr, '(');
const char *close_paren = nullptr;
const char *generic = strchr(cstr, '<');
// if before the arguments list begins there is a template sign
// then scan to the end of the generic args before you try to find
// the arguments list
if (generic && open_paren && generic < open_paren)
{
int generic_depth = 1;
++generic;
for (;
*generic && generic_depth > 0;
generic++)
{
if (*generic == '<')
generic_depth++;
if (*generic == '>')
generic_depth--;
}
if (*generic)
open_paren = strchr(generic, '(');
else
open_paren = nullptr;
}
if (open_paren)
{
if (IsToken (open_paren, "(anonymous namespace)"))
{
open_paren = strchr (open_paren + strlen("(anonymous namespace)"), '(');
if (open_paren)
close_paren = strchr (open_paren, ')');
}
else
close_paren = strchr (open_paren, ')');
}
if (open_paren)
s.Write(cstr, open_paren - cstr + 1);
else
{
s.PutCString (cstr);
s.PutChar ('(');
}
const size_t num_args = args.GetSize();
for (size_t arg_idx = 0; arg_idx < num_args; ++arg_idx)
{
std::string buffer;
VariableSP var_sp (args.GetVariableAtIndex (arg_idx));
ValueObjectSP var_value_sp (ValueObjectVariable::Create (exe_scope, var_sp));
const char *var_representation = nullptr;
const char *var_name = var_value_sp->GetName().GetCString();
if (var_value_sp->GetClangType().IsAggregateType() &&
DataVisualization::ShouldPrintAsOneLiner(*var_value_sp.get()))
{
static StringSummaryFormat format(TypeSummaryImpl::Flags()
.SetHideItemNames(false)
.SetShowMembersOneLiner(true),
"");
format.FormatObject(var_value_sp.get(), buffer, TypeSummaryOptions());
var_representation = buffer.c_str();
}
else
var_representation = var_value_sp->GetValueAsCString();
if (arg_idx > 0)
s.PutCString (", ");
if (var_value_sp->GetError().Success())
{
if (var_representation)
s.Printf ("%s=%s", var_name, var_representation);
else
s.Printf ("%s=%s at %s", var_name, var_value_sp->GetTypeName().GetCString(), var_value_sp->GetLocationAsCString());
}
else
s.Printf ("%s=<unavailable>", var_name);
}
if (close_paren)
s.PutCString (close_paren);
else
s.PutChar(')');
}
else
{
s.PutCString(cstr);
}
return true;
}
}
else if (sc->symbol)
{
const char *cstr = sc->symbol->GetName().AsCString (NULL);
if (cstr)
{
s.PutCString(cstr);
return true;
}
}
}
return false;
case Entry::Type::FunctionAddrOffset:
if (addr)
{
if (DumpAddressOffsetFromFunction (s, sc, exe_ctx, *addr, false, false, false))
return true;
}
return false;
case Entry::Type::FunctionAddrOffsetConcrete:
if (addr)
{
if (DumpAddressOffsetFromFunction (s, sc, exe_ctx, *addr, true, true, true))
return true;
}
return false;
case Entry::Type::FunctionLineOffset:
if (DumpAddressOffsetFromFunction (s, sc, exe_ctx, sc->line_entry.range.GetBaseAddress(), false, false, false))
return true;
return false;
case Entry::Type::FunctionPCOffset:
if (exe_ctx)
{
StackFrame *frame = exe_ctx->GetFramePtr();
if (frame)
{
if (DumpAddressOffsetFromFunction (s, sc, exe_ctx, frame->GetFrameCodeAddress(), false, false, false))
return true;
}
}
return false;
case Entry::Type::FunctionChanged:
return function_changed == true;
case Entry::Type::FunctionInitial:
return initial_function == true;
case Entry::Type::LineEntryFile:
if (sc && sc->line_entry.IsValid())
{
Module *module = sc->module_sp.get();
if (module)
{
if (DumpFile(s, sc->line_entry.file, (FileKind)entry.number))
return true;
}
}
return false;
case Entry::Type::LineEntryLineNumber:
if (sc && sc->line_entry.IsValid())
{
const char *format = "%" PRIu32;
if (!entry.printf_format.empty())
format = entry.printf_format.c_str();
s.Printf(format, sc->line_entry.line);
return true;
}
return false;
case Entry::Type::LineEntryStartAddress:
case Entry::Type::LineEntryEndAddress:
if (sc && sc->line_entry.range.GetBaseAddress().IsValid())
{
Address addr = sc->line_entry.range.GetBaseAddress();
if (entry.type == Entry::Type::LineEntryEndAddress)
addr.Slide(sc->line_entry.range.GetByteSize());
if (DumpAddress(s, sc, exe_ctx, addr, false))
return true;
}
return false;
case Entry::Type::CurrentPCArrow:
if (addr && exe_ctx && exe_ctx->GetFramePtr())
{
RegisterContextSP reg_ctx = exe_ctx->GetFramePtr()->GetRegisterContextSP();
if (reg_ctx.get())
{
addr_t pc_loadaddr = reg_ctx->GetPC();
if (pc_loadaddr != LLDB_INVALID_ADDRESS)
{
Address pc;
pc.SetLoadAddress (pc_loadaddr, exe_ctx->GetTargetPtr());
if (pc == *addr)
{
s.Printf ("-> ");
return true;
}
}
}
s.Printf(" ");
return true;
}
return false;
}
return false;
}
static bool
DumpCommaSeparatedChildEntryNames (Stream &s, const FormatEntity::Entry::Definition *parent)
{
if (parent->children)
{
const size_t n = parent->num_children;
for (size_t i=0; i<n; ++i)
{
if (i > 0)
s.PutCString(", ");
s.Printf ("\"%s\"", parent->children[i].name);
}
return true;
}
return false;
}
static Error
ParseEntry (const llvm::StringRef &format_str,
const FormatEntity::Entry::Definition *parent,
FormatEntity::Entry &entry)
{
Error error;
const size_t sep_pos = format_str.find_first_of(".[:");
const char sep_char = (sep_pos == llvm::StringRef::npos) ? '\0' : format_str[sep_pos];
llvm::StringRef key = format_str.substr(0, sep_pos);
const size_t n = parent->num_children;
for (size_t i=0; i<n; ++i)
{
const FormatEntity::Entry::Definition *entry_def = parent->children + i;
if (key.equals(entry_def->name) || entry_def->name[0] == '*')
{
llvm::StringRef value;
if (sep_char)
value = format_str.substr(sep_pos + (entry_def->keep_separator ? 0 : 1));
switch (entry_def->type)
{
case FormatEntity::Entry::Type::ParentString:
entry.string = std::move(format_str.str());
return error; // Success
case FormatEntity::Entry::Type::ParentNumber:
entry.number = entry_def->data;
return error; // Success
case FormatEntity::Entry::Type::InsertString:
entry.type = entry_def->type;
entry.string = entry_def->string;
return error; // Success
default:
entry.type = entry_def->type;
break;
}
if (value.empty())
{
if (entry_def->type == FormatEntity::Entry::Type::Invalid)
{
if (entry_def->children)
{
StreamString error_strm;
error_strm.Printf("'%s' can't be specified on its own, you must access one of its children: ", entry_def->name);
DumpCommaSeparatedChildEntryNames (error_strm, entry_def);
error.SetErrorStringWithFormat("%s", error_strm.GetString().c_str());
}
else if (sep_char == ':')
{
// Any value whose separator is a with a ':' means this value has a string argument
// that needs to be stored in the entry (like "${script.var:}").
// In this case the string value is the empty string which is ok.
}
else
{
error.SetErrorStringWithFormat("%s", "invalid entry definitions");
}
}
}
else
{
if (entry_def->children)
{
error = ParseEntry (value, entry_def, entry);
}
else if (sep_char == ':')
{
// Any value whose separator is a with a ':' means this value has a string argument
// that needs to be stored in the entry (like "${script.var:modulename.function}")
entry.string = std::move(value.str());
}
else
{
error.SetErrorStringWithFormat("'%s' followed by '%s' but it has no children",
key.str().c_str(),
value.str().c_str());
}
}
return error;
}
}
StreamString error_strm;
if (parent->type == FormatEntity::Entry::Type::Root)
error_strm.Printf("invalid top level item '%s'. Valid top level items are: ", key.str().c_str());
else
error_strm.Printf("invalid member '%s' in '%s'. Valid members are: ", key.str().c_str(), parent->name);
DumpCommaSeparatedChildEntryNames (error_strm, parent);
error.SetErrorStringWithFormat("%s", error_strm.GetString().c_str());
return error;
}
static const FormatEntity::Entry::Definition *
FindEntry (const llvm::StringRef &format_str, const FormatEntity::Entry::Definition *parent, llvm::StringRef &remainder)
{
Error error;
std::pair<llvm::StringRef, llvm::StringRef> p = format_str.split('.');
const size_t n = parent->num_children;
for (size_t i=0; i<n; ++i)
{
const FormatEntity::Entry::Definition *entry_def = parent->children + i;
if (p.first.equals(entry_def->name) || entry_def->name[0] == '*')
{
if (p.second.empty())
{
if (format_str.back() == '.')
remainder = format_str.drop_front(format_str.size() - 1);
else
remainder = llvm::StringRef(); // Exact match
return entry_def;
}
else
{
if (entry_def->children)
{
return FindEntry (p.second, entry_def, remainder);
}
else
{
remainder = p.second;
return entry_def;
}
}
}
}
remainder = format_str;
return parent;
}
Error
FormatEntity::ParseInternal (llvm::StringRef &format, Entry &parent_entry, uint32_t depth)
{
Error error;
while (!format.empty() && error.Success())
{
const size_t non_special_chars = format.find_first_of("${}\\");
if (non_special_chars == llvm::StringRef::npos)
{
// No special characters, just string bytes so add them and we are done
parent_entry.AppendText(format);
return error;
}
if (non_special_chars > 0)
{
// We have a special character, so add all characters before these as a plain string
parent_entry.AppendText(format.substr(0,non_special_chars));
format = format.drop_front(non_special_chars);
}
switch (format[0])
{
case '\0':
return error;
case '{':
{
format = format.drop_front(); // Skip the '{'
Entry scope_entry(Entry::Type::Scope);
error = FormatEntity::ParseInternal (format, scope_entry, depth+1);
if (error.Fail())
return error;
parent_entry.AppendEntry(std::move(scope_entry));
}
break;
case '}':
if (depth == 0)
error.SetErrorString("unmatched '}' character");
else
format = format.drop_front(); // Skip the '}' as we are at the end of the scope
return error;
case '\\':
{
format = format.drop_front(); // Skip the '\' character
if (format.empty())
{
error.SetErrorString("'\\' character was not followed by another character");
return error;
}
const char desens_char = format[0];
format = format.drop_front(); // Skip the desensitized char character
switch (desens_char)
{
case 'a': parent_entry.AppendChar('\a'); break;
case 'b': parent_entry.AppendChar('\b'); break;
case 'f': parent_entry.AppendChar('\f'); break;
case 'n': parent_entry.AppendChar('\n'); break;
case 'r': parent_entry.AppendChar('\r'); break;
case 't': parent_entry.AppendChar('\t'); break;
case 'v': parent_entry.AppendChar('\v'); break;
case '\'': parent_entry.AppendChar('\''); break;
case '\\': parent_entry.AppendChar('\\'); break;
case '0':
// 1 to 3 octal chars
{
// Make a string that can hold onto the initial zero char,
// up to 3 octal digits, and a terminating NULL.
char oct_str[5] = { 0, 0, 0, 0, 0 };
int i;
for (i=0; (format[i] >= '0' && format[i] <= '7') && i<4; ++i)
oct_str[i] = format[i];
// We don't want to consume the last octal character since
// the main for loop will do this for us, so we advance p by
// one less than i (even if i is zero)
format = format.drop_front(i);
unsigned long octal_value = ::strtoul (oct_str, NULL, 8);
if (octal_value <= UINT8_MAX)
{
parent_entry.AppendChar((char)octal_value);
}
else
{
error.SetErrorString("octal number is larger than a single byte");
return error;
}
}
break;
case 'x':
// hex number in the format
if (isxdigit(format[0]))
{
// Make a string that can hold onto two hex chars plus a
// NULL terminator
char hex_str[3] = { 0,0,0 };
hex_str[0] = format[0];
format = format.drop_front();
if (isxdigit(format[0]))
{
hex_str[1] = format[0];
format = format.drop_front();
}
unsigned long hex_value = strtoul (hex_str, NULL, 16);
if (hex_value <= UINT8_MAX)
{
parent_entry.AppendChar((char)hex_value);
}
else
{
error.SetErrorString("hex number is larger than a single byte");
return error;
}
}
else
{
parent_entry.AppendChar(desens_char);
}
break;
default:
// Just desensitize any other character by just printing what
// came after the '\'
parent_entry.AppendChar(desens_char);
break;
}
}
break;
case '$':
if (format.size() == 1)
{
// '$' at the end of a format string, just print the '$'
parent_entry.AppendText("$");
}
else
{
format = format.drop_front(); // Skip the '$'
if (format[0] == '{')
{
format = format.drop_front(); // Skip the '{'
llvm::StringRef variable, variable_format;
error = FormatEntity::ExtractVariableInfo (format, variable, variable_format);
if (error.Fail())
return error;
bool verify_is_thread_id = false;
Entry entry;
if (!variable_format.empty())
{
entry.printf_format = std::move(variable_format.str());
// If the format contains a '%' we are going to assume this is
// a printf style format. So if you want to format your thread ID
// using "0x%llx" you can use:
// ${thread.id%0x%llx}
//
// If there is no '%' in the format, then it is assumed to be a
// LLDB format name, or one of the extended formats specified in
// the switch statement below.
if (entry.printf_format.find('%') == std::string::npos)
{
bool clear_printf = false;
if (FormatManager::GetFormatFromCString(entry.printf_format.c_str(),
false,
entry.fmt))
{
// We have an LLDB format, so clear the printf format
clear_printf = true;
}
else if (entry.printf_format.size() == 1)
{
switch (entry.printf_format[0])
{
case '@': // if this is an @ sign, print ObjC description
entry.number = ValueObject::eValueObjectRepresentationStyleLanguageSpecific;
clear_printf = true;
break;
case 'V': // if this is a V, print the value using the default format
entry.number = ValueObject::eValueObjectRepresentationStyleValue;
clear_printf = true;
break;
case 'L': // if this is an L, print the location of the value
entry.number = ValueObject::eValueObjectRepresentationStyleLocation;
clear_printf = true;
break;
case 'S': // if this is an S, print the summary after all
entry.number = ValueObject::eValueObjectRepresentationStyleSummary;
clear_printf = true;
break;
case '#': // if this is a '#', print the number of children
entry.number = ValueObject::eValueObjectRepresentationStyleChildrenCount;
clear_printf = true;
break;
case 'T': // if this is a 'T', print the type
entry.number = ValueObject::eValueObjectRepresentationStyleType;
clear_printf = true;
break;
case 'N': // if this is a 'N', print the name
entry.number = ValueObject::eValueObjectRepresentationStyleName;
clear_printf = true;
break;
case '>': // if this is a '>', print the expression path
entry.number = ValueObject::eValueObjectRepresentationStyleExpressionPath;
clear_printf = true;
break;
default:
error.SetErrorStringWithFormat("invalid format: '%s'", entry.printf_format.c_str());
return error;
}
}
else if (FormatManager::GetFormatFromCString(entry.printf_format.c_str(),
true,
entry.fmt))
{
clear_printf = true;
}
else if (entry.printf_format == "tid")
{
verify_is_thread_id = true;
}
else
{
error.SetErrorStringWithFormat("invalid format: '%s'", entry.printf_format.c_str());
return error;
}
// Our format string turned out to not be a printf style format
// so lets clear the string
if (clear_printf)
entry.printf_format.clear();
}
}
// Check for dereferences
if (variable[0] == '*')
{
entry.deref = true;
variable = variable.drop_front();
}
error = ParseEntry (variable, &g_root, entry);
if (error.Fail())
return error;
if (verify_is_thread_id)
{
if (entry.type != Entry::Type::ThreadID &&
entry.type != Entry::Type::ThreadProtocolID)
{
error.SetErrorString("the 'tid' format can only be used on ${thread.id} and ${thread.protocol_id}");
}
}
switch (entry.type)
{
case Entry::Type::Variable:
case Entry::Type::VariableSynthetic:
if (entry.number == 0)
{
if (entry.string.empty())
entry.number = ValueObject::eValueObjectRepresentationStyleValue;
else
entry.number = ValueObject::eValueObjectRepresentationStyleSummary;
}
break;
default:
// Make sure someone didn't try to dereference anything but ${var} or ${svar}
if (entry.deref)
{
error.SetErrorStringWithFormat("${%s} can't be dereferenced, only ${var} and ${svar} can.", variable.str().c_str());
return error;
}
}
// Check if this entry just wants to insert a constant string
// value into the parent_entry, if so, insert the string with
// AppendText, else append the entry to the parent_entry.
if (entry.type == Entry::Type::InsertString)
parent_entry.AppendText(entry.string.c_str());
else
parent_entry.AppendEntry(std::move(entry));
}
}
break;
}
}
return error;
}
Error
FormatEntity::ExtractVariableInfo (llvm::StringRef &format_str, llvm::StringRef &variable_name, llvm::StringRef &variable_format)
{
Error error;
variable_name = llvm::StringRef();
variable_format = llvm::StringRef();
const size_t paren_pos = format_str.find_first_of('}');
if (paren_pos != llvm::StringRef::npos)
{
const size_t percent_pos = format_str.find_first_of('%');
if (percent_pos < paren_pos)
{
if (percent_pos > 0)
{
if (percent_pos > 1)
variable_name = format_str.substr(0, percent_pos);
variable_format = format_str.substr(percent_pos + 1, paren_pos - (percent_pos + 1));
}
}
else
{
variable_name = format_str.substr(0, paren_pos);
}
// Strip off elements and the formatting and the trailing '}'
format_str = format_str.substr(paren_pos + 1);
}
else
{
error.SetErrorStringWithFormat("missing terminating '}' character for '${%s'", format_str.str().c_str());
}
return error;
}
bool
FormatEntity::FormatFileSpec (const FileSpec &file_spec, Stream &s, llvm::StringRef variable_name, llvm::StringRef variable_format)
{
if (variable_name.empty() || variable_name.equals(".fullpath"))
{
file_spec.Dump(&s);
return true;
}
else if (variable_name.equals(".basename"))
{
s.PutCString(file_spec.GetFilename().AsCString(""));
return true;
}
else if (variable_name.equals(".dirname"))
{
s.PutCString(file_spec.GetFilename().AsCString(""));
return true;
}
return false;
}
static std::string
MakeMatch (const llvm::StringRef &prefix, const char *suffix)
{
std::string match(prefix.str());
match.append(suffix);
return std::move(match);
}
static void
AddMatches (const FormatEntity::Entry::Definition *def,
const llvm::StringRef &prefix,
const llvm::StringRef &match_prefix,
StringList &matches)
{
const size_t n = def->num_children;
if (n > 0)
{
for (size_t i=0; i<n; ++i)
{
std::string match = std::move(prefix.str());
if (match_prefix.empty())
matches.AppendString(MakeMatch (prefix, def->children[i].name));
else if (strncmp(def->children[i].name, match_prefix.data(), match_prefix.size()) == 0)
matches.AppendString(MakeMatch (prefix, def->children[i].name + match_prefix.size()));
}
}
}
size_t
FormatEntity::AutoComplete (const char *s,
int match_start_point,
int max_return_elements,
bool &word_complete,
StringList &matches)
{
word_complete = false;
llvm::StringRef str(s + match_start_point);
matches.Clear();
const size_t dollar_pos = str.rfind('$');
if (dollar_pos != llvm::StringRef::npos)
{
// Hitting TAB after $ at the end of the string add a "{"
if (dollar_pos == str.size() - 1)
{
std::string match = std::move(str.str());
match.append("{");
matches.AppendString(std::move(match));
}
else if (str[dollar_pos + 1] == '{')
{
const size_t close_pos = str.find('}', dollar_pos + 2);
if (close_pos == llvm::StringRef::npos)
{
const size_t format_pos = str.find('%', dollar_pos + 2);
if (format_pos == llvm::StringRef::npos)
{
llvm::StringRef partial_variable (str.substr(dollar_pos + 2));
if (partial_variable.empty())
{
// Suggest all top level entites as we are just past "${"
AddMatches(&g_root, str, llvm::StringRef(), matches);
}
else
{
// We have a partially specified variable, find it
llvm::StringRef remainder;
const FormatEntity::Entry::Definition* entry_def = FindEntry (partial_variable, &g_root, remainder);
if (entry_def)
{
const size_t n = entry_def->num_children;
if (remainder.empty())
{
// Exact match
if (n > 0)
{
// "${thread.info" <TAB>
matches.AppendString(std::move(MakeMatch (str, ".")));
}
else
{
// "${thread.id" <TAB>
matches.AppendString(std::move(MakeMatch (str, "}")));
word_complete = true;
}
}
else if (remainder.equals("."))
{
// "${thread." <TAB>
AddMatches(entry_def, str, llvm::StringRef(), matches);
}
else
{
// We have a partial match
// "${thre" <TAB>
AddMatches(entry_def, str, remainder, matches);
}
}
}
}
}
}
}
return matches.GetSize();
}