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//===-- CommandObjectSourceFile.cpp -----------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "CommandObjectSourceFile.h"
// C Includes
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/Interpreter/Args.h"
#include "lldb/Interpreter/CommandContext.h"
#include "lldb/Interpreter/CommandInterpreter.h"
#include "lldb/Interpreter/CommandReturnObject.h"
#include "lldb/Target/Process.h"
#include "lldb/Core/SourceManager.h"
#include "lldb/Target/TargetList.h"
#include "lldb/Interpreter/CommandCompletions.h"
using namespace lldb;
using namespace lldb_private;
CommandObjectSourceFile::CommandOptions::CommandOptions () :
Options()
{
}
CommandObjectSourceFile::CommandOptions::~CommandOptions ()
{
}
Error
CommandObjectSourceFile::CommandOptions::SetOptionValue (int option_idx, const char *option_arg)
{
Error error;
const char short_option = g_option_table[option_idx].short_option;
switch (short_option)
{
case 'l':
start_line = Args::StringToUInt32 (option_arg, 0);
if (start_line == 0)
error.SetErrorStringWithFormat("Invalid line number: '%s'.\n", option_arg);
break;
case 'n':
num_lines = Args::StringToUInt32 (option_arg, 0);
if (num_lines == 0)
error.SetErrorStringWithFormat("Invalid line count: '%s'.\n", option_arg);
break;
case 'f':
file_name = option_arg;
break;
default:
error.SetErrorStringWithFormat("Unrecognized short option '%c'.\n", short_option);
break;
}
return error;
}
void
CommandObjectSourceFile::CommandOptions::ResetOptionValues ()
{
Options::ResetOptionValues();
file_spec.Clear();
file_name.clear();
start_line = 0;
num_lines = 10;
}
const lldb::OptionDefinition*
CommandObjectSourceFile::CommandOptions::GetDefinitions ()
{
return g_option_table;
}
lldb::OptionDefinition
CommandObjectSourceFile::CommandOptions::g_option_table[] =
{
{ LLDB_OPT_SET_1, false, "line", 'l', required_argument, NULL, 0, "<line>", "The line number at which to start the display source."},
{ LLDB_OPT_SET_1, false, "file", 'f', required_argument, NULL, CommandCompletions::eSourceFileCompletion, "<file>", "The file from which to display source."},
{ LLDB_OPT_SET_1, false, "count", 'n', required_argument, NULL, 0, "<count>", "The number of source lines to display."},
{ 0, false, NULL, 0, 0, NULL, 0, NULL, NULL }
};
//-------------------------------------------------------------------------
// CommandObjectSourceFile
//-------------------------------------------------------------------------
CommandObjectSourceFile::CommandObjectSourceFile() :
CommandObject ("source-file",
"Display source files from the current executable's debug info.",
"source-file [<cmd-options>] [<filename>]")
{
}
CommandObjectSourceFile::~CommandObjectSourceFile ()
{
}
Options *
CommandObjectSourceFile::GetOptions ()
{
return &m_options;
}
bool
CommandObjectSourceFile::Execute
(
Args& args,
CommandContext *context,
CommandInterpreter *interpreter,
CommandReturnObject &result
)
{
const int argc = args.GetArgumentCount();
if (argc != 0)
{
result.AppendErrorWithFormat("'%s' takes no arguments, only flags.\n", GetCommandName());
result.SetStatus (eReturnStatusFailed);
}
ExecutionContext exe_ctx(context->GetExecutionContext());
if (m_options.file_name.empty())
{
// Last valid source manager context, or the current frame if no
// valid last context in source manager.
// One little trick here, if you type the exact same list command twice in a row, it is
// more likely because you typed it once, then typed it again
if (m_options.start_line == 0)
{
if (interpreter->GetSourceManager().DisplayMoreWithLineNumbers (&result.GetOutputStream()))
{
result.SetStatus (eReturnStatusSuccessFinishResult);
}
}
else
{
if (interpreter->GetSourceManager().DisplaySourceLinesWithLineNumbersUsingLastFile(
m_options.start_line, // Line to display
0, // Lines before line to display
m_options.num_lines, // Lines after line to display
"", // Don't mark "line"
&result.GetOutputStream()))
{
result.SetStatus (eReturnStatusSuccessFinishResult);
}
}
}
else
{
const char *filename = m_options.file_name.c_str();
Target *target = context->GetTarget();
if (target == NULL)
{
result.AppendError ("invalid target, set executable file using 'file' command");
result.SetStatus (eReturnStatusFailed);
return false;
}
bool check_inlines = false;
SymbolContextList sc_list;
size_t num_matches = target->GetImages().ResolveSymbolContextForFilePath (filename,
0,
check_inlines,
eSymbolContextModule | eSymbolContextCompUnit,
sc_list);
if (num_matches > 0)
{
SymbolContext sc;
if (sc_list.GetContextAtIndex(0, sc))
{
if (sc.comp_unit)
{
interpreter->GetSourceManager ().DisplaySourceLinesWithLineNumbers (sc.comp_unit,
m_options.start_line, // Line to display
0, // Lines before line to display
m_options.num_lines, // Lines after line to display
"", // Don't mark "line"
&result.GetOutputStream());
result.SetStatus (eReturnStatusSuccessFinishResult);
}
}
}
}
return result.Succeeded();
}
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