mirror of
https://github.com/intel/llvm.git
synced 2026-01-24 17:01:00 +08:00
44d937820b
The many many benefits include: 1 - Input/Output/Error streams are now handled as real streams not a push style input 2 - auto completion in python embedded interpreter 3 - multi-line input for "script" and "expression" commands now allow you to edit previous/next lines using up and down arrow keys and this makes multi-line input actually a viable thing to use 4 - it is now possible to use curses to drive LLDB (please try the "gui" command) We will need to deal with and fix any buildbot failures and tests and arise now that input/output and error are correctly hooked up in all cases. llvm-svn: 200263
614 lines
20 KiB
C++
614 lines
20 KiB
C++
//===-- SBCommandInterpreter.cpp --------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/lldb-python.h"
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#include "lldb/lldb-types.h"
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#include "lldb/Core/SourceManager.h"
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#include "lldb/Core/Listener.h"
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#include "lldb/Interpreter/CommandInterpreter.h"
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#include "lldb/Interpreter/CommandObjectMultiword.h"
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#include "lldb/Interpreter/CommandReturnObject.h"
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#include "lldb/Target/Target.h"
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#include "lldb/API/SBBroadcaster.h"
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#include "lldb/API/SBCommandReturnObject.h"
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#include "lldb/API/SBCommandInterpreter.h"
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#include "lldb/API/SBProcess.h"
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#include "lldb/API/SBTarget.h"
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#include "lldb/API/SBListener.h"
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#include "lldb/API/SBStream.h"
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#include "lldb/API/SBStringList.h"
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using namespace lldb;
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using namespace lldb_private;
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class CommandPluginInterfaceImplementation : public CommandObjectParsed
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{
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public:
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CommandPluginInterfaceImplementation (CommandInterpreter &interpreter,
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const char *name,
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lldb::SBCommandPluginInterface* backend,
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const char *help = NULL,
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const char *syntax = NULL,
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uint32_t flags = 0) :
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CommandObjectParsed (interpreter, name, help, syntax, flags),
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m_backend(backend) {}
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virtual bool
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IsRemovable() const { return true; }
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protected:
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virtual bool
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DoExecute (Args& command, CommandReturnObject &result)
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{
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SBCommandReturnObject sb_return(&result);
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SBCommandInterpreter sb_interpreter(&m_interpreter);
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SBDebugger debugger_sb(m_interpreter.GetDebugger().shared_from_this());
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bool ret = m_backend->DoExecute (debugger_sb,(char**)command.GetArgumentVector(), sb_return);
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sb_return.Release();
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return ret;
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}
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lldb::SBCommandPluginInterface* m_backend;
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};
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SBCommandInterpreter::SBCommandInterpreter (CommandInterpreter *interpreter) :
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m_opaque_ptr (interpreter)
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{
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Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
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if (log)
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log->Printf ("SBCommandInterpreter::SBCommandInterpreter (interpreter=%p)"
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" => SBCommandInterpreter(%p)", interpreter, m_opaque_ptr);
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}
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SBCommandInterpreter::SBCommandInterpreter(const SBCommandInterpreter &rhs) :
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m_opaque_ptr (rhs.m_opaque_ptr)
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{
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}
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const SBCommandInterpreter &
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SBCommandInterpreter::operator = (const SBCommandInterpreter &rhs)
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{
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m_opaque_ptr = rhs.m_opaque_ptr;
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return *this;
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}
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SBCommandInterpreter::~SBCommandInterpreter ()
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{
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}
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bool
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SBCommandInterpreter::IsValid() const
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{
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return m_opaque_ptr != NULL;
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}
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bool
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SBCommandInterpreter::CommandExists (const char *cmd)
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{
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if (cmd && m_opaque_ptr)
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return m_opaque_ptr->CommandExists (cmd);
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return false;
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}
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bool
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SBCommandInterpreter::AliasExists (const char *cmd)
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{
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if (cmd && m_opaque_ptr)
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return m_opaque_ptr->AliasExists (cmd);
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return false;
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}
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bool
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SBCommandInterpreter::IsActive ()
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{
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if (m_opaque_ptr)
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return m_opaque_ptr->IsActive ();
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return false;
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}
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const char *
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SBCommandInterpreter::GetIOHandlerControlSequence(char ch)
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{
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if (m_opaque_ptr)
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return m_opaque_ptr->GetDebugger().GetTopIOHandlerControlSequence (ch).GetCString();
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return NULL;
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}
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lldb::ReturnStatus
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SBCommandInterpreter::HandleCommand (const char *command_line, SBCommandReturnObject &result, bool add_to_history)
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{
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Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
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if (log)
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log->Printf ("SBCommandInterpreter(%p)::HandleCommand (command=\"%s\", SBCommandReturnObject(%p), add_to_history=%i)",
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m_opaque_ptr, command_line, result.get(), add_to_history);
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result.Clear();
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if (command_line && m_opaque_ptr)
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{
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m_opaque_ptr->HandleCommand (command_line, add_to_history ? eLazyBoolYes : eLazyBoolNo, result.ref());
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}
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else
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{
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result->AppendError ("SBCommandInterpreter or the command line is not valid");
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result->SetStatus (eReturnStatusFailed);
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}
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// We need to get the value again, in case the command disabled the log!
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log = lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API);
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if (log)
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{
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SBStream sstr;
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result.GetDescription (sstr);
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log->Printf ("SBCommandInterpreter(%p)::HandleCommand (command=\"%s\", SBCommandReturnObject(%p): %s, add_to_history=%i) => %i",
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m_opaque_ptr, command_line, result.get(), sstr.GetData(), add_to_history, result.GetStatus());
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}
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return result.GetStatus();
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}
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int
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SBCommandInterpreter::HandleCompletion (const char *current_line,
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const char *cursor,
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const char *last_char,
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int match_start_point,
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int max_return_elements,
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SBStringList &matches)
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{
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Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
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int num_completions = 0;
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// Sanity check the arguments that are passed in:
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// cursor & last_char have to be within the current_line.
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if (current_line == NULL || cursor == NULL || last_char == NULL)
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return 0;
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if (cursor < current_line || last_char < current_line)
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return 0;
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size_t current_line_size = strlen (current_line);
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if (cursor - current_line > current_line_size || last_char - current_line > current_line_size)
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return 0;
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if (log)
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log->Printf ("SBCommandInterpreter(%p)::HandleCompletion (current_line=\"%s\", cursor at: %" PRId64 ", last char at: %" PRId64 ", match_start_point: %d, max_return_elements: %d)",
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m_opaque_ptr, current_line, (uint64_t) (cursor - current_line), (uint64_t) (last_char - current_line), match_start_point, max_return_elements);
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if (m_opaque_ptr)
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{
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lldb_private::StringList lldb_matches;
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num_completions = m_opaque_ptr->HandleCompletion (current_line, cursor, last_char, match_start_point,
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max_return_elements, lldb_matches);
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SBStringList temp_list (&lldb_matches);
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matches.AppendList (temp_list);
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}
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if (log)
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log->Printf ("SBCommandInterpreter(%p)::HandleCompletion - Found %d completions.", m_opaque_ptr, num_completions);
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return num_completions;
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}
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int
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SBCommandInterpreter::HandleCompletion (const char *current_line,
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uint32_t cursor_pos,
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int match_start_point,
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int max_return_elements,
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lldb::SBStringList &matches)
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{
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const char *cursor = current_line + cursor_pos;
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const char *last_char = current_line + strlen (current_line);
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return HandleCompletion (current_line, cursor, last_char, match_start_point, max_return_elements, matches);
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}
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bool
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SBCommandInterpreter::HasCommands ()
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{
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if (m_opaque_ptr)
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return m_opaque_ptr->HasCommands();
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return false;
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}
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bool
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SBCommandInterpreter::HasAliases ()
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{
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if (m_opaque_ptr)
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return m_opaque_ptr->HasAliases();
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return false;
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}
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bool
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SBCommandInterpreter::HasAliasOptions ()
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{
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if (m_opaque_ptr)
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return m_opaque_ptr->HasAliasOptions ();
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return false;
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}
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SBProcess
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SBCommandInterpreter::GetProcess ()
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{
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SBProcess sb_process;
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ProcessSP process_sp;
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if (m_opaque_ptr)
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{
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TargetSP target_sp(m_opaque_ptr->GetDebugger().GetSelectedTarget());
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if (target_sp)
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{
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Mutex::Locker api_locker(target_sp->GetAPIMutex());
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process_sp = target_sp->GetProcessSP();
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sb_process.SetSP(process_sp);
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}
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}
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Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
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if (log)
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log->Printf ("SBCommandInterpreter(%p)::GetProcess () => SBProcess(%p)",
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m_opaque_ptr, process_sp.get());
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return sb_process;
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}
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SBDebugger
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SBCommandInterpreter::GetDebugger ()
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{
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SBDebugger sb_debugger;
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if (m_opaque_ptr)
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sb_debugger.reset(m_opaque_ptr->GetDebugger().shared_from_this());
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Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
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if (log)
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log->Printf ("SBCommandInterpreter(%p)::GetDebugger () => SBDebugger(%p)",
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m_opaque_ptr, sb_debugger.get());
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return sb_debugger;
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}
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CommandInterpreter *
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SBCommandInterpreter::get ()
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{
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return m_opaque_ptr;
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}
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CommandInterpreter &
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SBCommandInterpreter::ref ()
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{
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assert (m_opaque_ptr);
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return *m_opaque_ptr;
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}
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void
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SBCommandInterpreter::reset (lldb_private::CommandInterpreter *interpreter)
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{
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m_opaque_ptr = interpreter;
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}
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void
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SBCommandInterpreter::SourceInitFileInHomeDirectory (SBCommandReturnObject &result)
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{
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result.Clear();
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if (m_opaque_ptr)
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{
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TargetSP target_sp(m_opaque_ptr->GetDebugger().GetSelectedTarget());
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Mutex::Locker api_locker;
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if (target_sp)
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api_locker.Lock(target_sp->GetAPIMutex());
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m_opaque_ptr->SourceInitFile (false, result.ref());
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}
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else
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{
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result->AppendError ("SBCommandInterpreter is not valid");
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result->SetStatus (eReturnStatusFailed);
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}
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Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
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if (log)
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log->Printf ("SBCommandInterpreter(%p)::SourceInitFileInHomeDirectory (&SBCommandReturnObject(%p))",
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m_opaque_ptr, result.get());
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}
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void
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SBCommandInterpreter::SourceInitFileInCurrentWorkingDirectory (SBCommandReturnObject &result)
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{
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result.Clear();
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if (m_opaque_ptr)
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{
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TargetSP target_sp(m_opaque_ptr->GetDebugger().GetSelectedTarget());
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Mutex::Locker api_locker;
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if (target_sp)
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api_locker.Lock(target_sp->GetAPIMutex());
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m_opaque_ptr->SourceInitFile (true, result.ref());
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}
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else
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{
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result->AppendError ("SBCommandInterpreter is not valid");
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result->SetStatus (eReturnStatusFailed);
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}
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Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
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if (log)
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log->Printf ("SBCommandInterpreter(%p)::SourceInitFileInCurrentWorkingDirectory (&SBCommandReturnObject(%p))",
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m_opaque_ptr, result.get());
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}
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SBBroadcaster
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SBCommandInterpreter::GetBroadcaster ()
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{
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Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
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SBBroadcaster broadcaster (m_opaque_ptr, false);
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if (log)
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log->Printf ("SBCommandInterpreter(%p)::GetBroadcaster() => SBBroadcaster(%p)",
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m_opaque_ptr, broadcaster.get());
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return broadcaster;
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}
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const char *
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SBCommandInterpreter::GetBroadcasterClass ()
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{
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return Communication::GetStaticBroadcasterClass().AsCString();
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}
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const char *
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SBCommandInterpreter::GetArgumentTypeAsCString (const lldb::CommandArgumentType arg_type)
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{
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return CommandObject::GetArgumentTypeAsCString (arg_type);
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}
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const char *
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SBCommandInterpreter::GetArgumentDescriptionAsCString (const lldb::CommandArgumentType arg_type)
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{
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return CommandObject::GetArgumentDescriptionAsCString (arg_type);
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}
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bool
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SBCommandInterpreter::SetCommandOverrideCallback (const char *command_name,
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lldb::CommandOverrideCallback callback,
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void *baton)
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{
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if (command_name && command_name[0] && m_opaque_ptr)
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{
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std::string command_name_str (command_name);
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CommandObject *cmd_obj = m_opaque_ptr->GetCommandObjectForCommand(command_name_str);
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if (cmd_obj)
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{
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assert(command_name_str.empty());
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cmd_obj->SetOverrideCallback (callback, baton);
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return true;
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}
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}
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return false;
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}
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#ifndef LLDB_DISABLE_PYTHON
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// Defined in the SWIG source file
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extern "C" void
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init_lldb(void);
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// these are the Pythonic implementations of the required callbacks
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// these are scripting-language specific, which is why they belong here
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// we still need to use function pointers to them instead of relying
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// on linkage-time resolution because the SWIG stuff and this file
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// get built at different times
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extern "C" bool
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LLDBSwigPythonBreakpointCallbackFunction (const char *python_function_name,
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const char *session_dictionary_name,
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const lldb::StackFrameSP& sb_frame,
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const lldb::BreakpointLocationSP& sb_bp_loc);
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extern "C" bool
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LLDBSwigPythonWatchpointCallbackFunction (const char *python_function_name,
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const char *session_dictionary_name,
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const lldb::StackFrameSP& sb_frame,
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const lldb::WatchpointSP& sb_wp);
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extern "C" bool
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LLDBSwigPythonCallTypeScript (const char *python_function_name,
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void *session_dictionary,
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const lldb::ValueObjectSP& valobj_sp,
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void** pyfunct_wrapper,
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std::string& retval);
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extern "C" void*
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LLDBSwigPythonCreateSyntheticProvider (const char *python_class_name,
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const char *session_dictionary_name,
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const lldb::ValueObjectSP& valobj_sp);
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extern "C" uint32_t
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LLDBSwigPython_CalculateNumChildren (void *implementor);
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extern "C" void *
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LLDBSwigPython_GetChildAtIndex (void *implementor, uint32_t idx);
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extern "C" int
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LLDBSwigPython_GetIndexOfChildWithName (void *implementor, const char* child_name);
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extern "C" void *
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LLDBSWIGPython_CastPyObjectToSBValue (void* data);
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extern lldb::ValueObjectSP
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LLDBSWIGPython_GetValueObjectSPFromSBValue (void* data);
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extern "C" bool
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LLDBSwigPython_UpdateSynthProviderInstance (void* implementor);
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extern "C" bool
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LLDBSwigPython_MightHaveChildrenSynthProviderInstance (void* implementor);
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extern "C" bool
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LLDBSwigPythonCallCommand (const char *python_function_name,
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const char *session_dictionary_name,
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lldb::DebuggerSP& debugger,
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const char* args,
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lldb_private::CommandReturnObject &cmd_retobj);
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extern "C" bool
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LLDBSwigPythonCallModuleInit (const char *python_module_name,
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const char *session_dictionary_name,
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lldb::DebuggerSP& debugger);
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extern "C" void*
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LLDBSWIGPythonCreateOSPlugin (const char *python_class_name,
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const char *session_dictionary_name,
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const lldb::ProcessSP& process_sp);
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extern "C" bool
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LLDBSWIGPythonRunScriptKeywordProcess (const char* python_function_name,
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const char* session_dictionary_name,
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lldb::ProcessSP& process,
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std::string& output);
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extern "C" bool
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LLDBSWIGPythonRunScriptKeywordThread (const char* python_function_name,
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const char* session_dictionary_name,
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lldb::ThreadSP& thread,
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std::string& output);
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extern "C" bool
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LLDBSWIGPythonRunScriptKeywordTarget (const char* python_function_name,
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const char* session_dictionary_name,
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lldb::TargetSP& target,
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std::string& output);
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extern "C" bool
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LLDBSWIGPythonRunScriptKeywordFrame (const char* python_function_name,
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const char* session_dictionary_name,
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lldb::StackFrameSP& frame,
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std::string& output);
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extern "C" void*
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LLDBSWIGPython_GetDynamicSetting (void* module,
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const char* setting,
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const lldb::TargetSP& target_sp);
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#endif
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void
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SBCommandInterpreter::InitializeSWIG ()
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{
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static bool g_initialized = false;
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if (!g_initialized)
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{
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g_initialized = true;
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|
#ifndef LLDB_DISABLE_PYTHON
|
|
ScriptInterpreter::InitializeInterpreter (init_lldb,
|
|
LLDBSwigPythonBreakpointCallbackFunction,
|
|
LLDBSwigPythonWatchpointCallbackFunction,
|
|
LLDBSwigPythonCallTypeScript,
|
|
LLDBSwigPythonCreateSyntheticProvider,
|
|
LLDBSwigPython_CalculateNumChildren,
|
|
LLDBSwigPython_GetChildAtIndex,
|
|
LLDBSwigPython_GetIndexOfChildWithName,
|
|
LLDBSWIGPython_CastPyObjectToSBValue,
|
|
LLDBSWIGPython_GetValueObjectSPFromSBValue,
|
|
LLDBSwigPython_UpdateSynthProviderInstance,
|
|
LLDBSwigPython_MightHaveChildrenSynthProviderInstance,
|
|
LLDBSwigPythonCallCommand,
|
|
LLDBSwigPythonCallModuleInit,
|
|
LLDBSWIGPythonCreateOSPlugin,
|
|
LLDBSWIGPythonRunScriptKeywordProcess,
|
|
LLDBSWIGPythonRunScriptKeywordThread,
|
|
LLDBSWIGPythonRunScriptKeywordTarget,
|
|
LLDBSWIGPythonRunScriptKeywordFrame,
|
|
LLDBSWIGPython_GetDynamicSetting);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
lldb::SBCommand
|
|
SBCommandInterpreter::AddMultiwordCommand (const char* name, const char* help)
|
|
{
|
|
CommandObjectMultiword *new_command = new CommandObjectMultiword(*m_opaque_ptr,name,help);
|
|
new_command->SetRemovable (true);
|
|
lldb::CommandObjectSP new_command_sp(new_command);
|
|
if (new_command_sp && m_opaque_ptr->AddUserCommand(name, new_command_sp, true))
|
|
return lldb::SBCommand(new_command_sp);
|
|
return lldb::SBCommand();
|
|
}
|
|
|
|
lldb::SBCommand
|
|
SBCommandInterpreter::AddCommand (const char* name, lldb::SBCommandPluginInterface* impl, const char* help)
|
|
{
|
|
lldb::CommandObjectSP new_command_sp;
|
|
new_command_sp.reset(new CommandPluginInterfaceImplementation(*m_opaque_ptr,name,impl,help));
|
|
|
|
if (new_command_sp && m_opaque_ptr->AddUserCommand(name, new_command_sp, true))
|
|
return lldb::SBCommand(new_command_sp);
|
|
return lldb::SBCommand();
|
|
}
|
|
|
|
SBCommand::SBCommand ()
|
|
{}
|
|
|
|
SBCommand::SBCommand (lldb::CommandObjectSP cmd_sp) : m_opaque_sp (cmd_sp)
|
|
{}
|
|
|
|
bool
|
|
SBCommand::IsValid ()
|
|
{
|
|
return (bool)m_opaque_sp;
|
|
}
|
|
|
|
const char*
|
|
SBCommand::GetName ()
|
|
{
|
|
if (IsValid ())
|
|
return m_opaque_sp->GetCommandName ();
|
|
return NULL;
|
|
}
|
|
|
|
const char*
|
|
SBCommand::GetHelp ()
|
|
{
|
|
if (IsValid ())
|
|
return m_opaque_sp->GetHelp ();
|
|
return NULL;
|
|
}
|
|
|
|
lldb::SBCommand
|
|
SBCommand::AddMultiwordCommand (const char* name, const char* help)
|
|
{
|
|
if (!IsValid ())
|
|
return lldb::SBCommand();
|
|
if (m_opaque_sp->IsMultiwordObject() == false)
|
|
return lldb::SBCommand();
|
|
CommandObjectMultiword *new_command = new CommandObjectMultiword(m_opaque_sp->GetCommandInterpreter(),name,help);
|
|
new_command->SetRemovable (true);
|
|
lldb::CommandObjectSP new_command_sp(new_command);
|
|
if (new_command_sp && m_opaque_sp->LoadSubCommand(name,new_command_sp))
|
|
return lldb::SBCommand(new_command_sp);
|
|
return lldb::SBCommand();
|
|
}
|
|
|
|
lldb::SBCommand
|
|
SBCommand::AddCommand (const char* name, lldb::SBCommandPluginInterface *impl, const char* help)
|
|
{
|
|
if (!IsValid ())
|
|
return lldb::SBCommand();
|
|
if (m_opaque_sp->IsMultiwordObject() == false)
|
|
return lldb::SBCommand();
|
|
lldb::CommandObjectSP new_command_sp;
|
|
new_command_sp.reset(new CommandPluginInterfaceImplementation(m_opaque_sp->GetCommandInterpreter(),name,impl,help));
|
|
if (new_command_sp && m_opaque_sp->LoadSubCommand(name,new_command_sp))
|
|
return lldb::SBCommand(new_command_sp);
|
|
return lldb::SBCommand();
|
|
}
|
|
|