1 //===-- CommandObjectScript.cpp ---------------------------------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #include "CommandObjectScript.h"
11 
12 // C Includes
13 // C++ Includes
14 // Other libraries and framework includes
15 // Project includes
16 
17 #include "lldb/Core/Debugger.h"
18 
19 #include "lldb/DataFormatters/DataVisualization.h"
20 
21 #include "lldb/Interpreter/Args.h"
22 #include "lldb/Interpreter/CommandInterpreter.h"
23 #include "lldb/Interpreter/CommandReturnObject.h"
24 #include "lldb/Interpreter/ScriptInterpreter.h"
25 
26 using namespace lldb;
27 using namespace lldb_private;
28 
29 //-------------------------------------------------------------------------
30 // CommandObjectScript
31 //-------------------------------------------------------------------------
32 
33 CommandObjectScript::CommandObjectScript(CommandInterpreter &interpreter, ScriptLanguage script_lang)
34     : CommandObjectRaw(interpreter, "script", "Invoke the script interpreter with provided code and display any "
35                                               "results.  Start the interactive interpreter if no code is supplied.",
36                        "script [<script-code>]")
37 {
38 }
39 
40 CommandObjectScript::~CommandObjectScript ()
41 {
42 }
43 
44 bool
45 CommandObjectScript::DoExecute
46 (
47     const char *command,
48     CommandReturnObject &result
49 )
50 {
51 #ifdef LLDB_DISABLE_PYTHON
52     // if we ever support languages other than Python this simple #ifdef won't work
53     result.AppendError("your copy of LLDB does not support scripting.");
54     result.SetStatus (eReturnStatusFailed);
55     return false;
56 #else
57     if (m_interpreter.GetDebugger().GetScriptLanguage() == lldb::eScriptLanguageNone)
58     {
59         result.AppendError("the script-lang setting is set to none - scripting not available");
60         result.SetStatus (eReturnStatusFailed);
61         return false;
62     }
63 
64     ScriptInterpreter *script_interpreter = m_interpreter.GetScriptInterpreter ();
65 
66     if (script_interpreter == nullptr)
67     {
68         result.AppendError("no script interpreter");
69         result.SetStatus (eReturnStatusFailed);
70         return false;
71     }
72 
73     DataVisualization::ForceUpdate(); // script might change Python code we use for formatting.. make sure we keep up to date with it
74 
75     if (command == nullptr || command[0] == '\0')
76     {
77         script_interpreter->ExecuteInterpreterLoop ();
78         result.SetStatus (eReturnStatusSuccessFinishNoResult);
79         return result.Succeeded();
80     }
81 
82     // We can do better when reporting the status of one-liner script execution.
83     if (script_interpreter->ExecuteOneLine (command, &result))
84         result.SetStatus(eReturnStatusSuccessFinishNoResult);
85     else
86         result.SetStatus(eReturnStatusFailed);
87 
88     return result.Succeeded();
89 #endif
90 }
91