1 //===-- OptionValueBoolean.cpp --------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #include "lldb/Interpreter/OptionValueBoolean.h"
10 
11 #include "lldb/Host/PosixApi.h"
12 #include "lldb/Interpreter/OptionArgParser.h"
13 #include "lldb/Utility/Stream.h"
14 #include "lldb/Utility/StringList.h"
15 #include "llvm/ADT/STLExtras.h"
16 
17 using namespace lldb;
18 using namespace lldb_private;
19 
20 void OptionValueBoolean::DumpValue(const ExecutionContext *exe_ctx,
21                                    Stream &strm, uint32_t dump_mask) {
22   if (dump_mask & eDumpOptionType)
23     strm.Printf("(%s)", GetTypeAsCString());
24   //    if (dump_mask & eDumpOptionName)
25   //        DumpQualifiedName (strm);
26   if (dump_mask & eDumpOptionValue) {
27     if (dump_mask & eDumpOptionType)
28       strm.PutCString(" = ");
29     strm.PutCString(m_current_value ? "true" : "false");
30   }
31 }
32 
33 Status OptionValueBoolean::SetValueFromString(llvm::StringRef value_str,
34                                               VarSetOperationType op) {
35   Status error;
36   switch (op) {
37   case eVarSetOperationClear:
38     Clear();
39     NotifyValueChanged();
40     break;
41 
42   case eVarSetOperationReplace:
43   case eVarSetOperationAssign: {
44     bool success = false;
45     bool value = OptionArgParser::ToBoolean(value_str, false, &success);
46     if (success) {
47       m_value_was_set = true;
48       m_current_value = value;
49       NotifyValueChanged();
50     } else {
51       if (value_str.size() == 0)
52         error.SetErrorString("invalid boolean string value <empty>");
53       else
54         error.SetErrorStringWithFormat("invalid boolean string value: '%s'",
55                                        value_str.str().c_str());
56     }
57   } break;
58 
59   case eVarSetOperationInsertBefore:
60   case eVarSetOperationInsertAfter:
61   case eVarSetOperationRemove:
62   case eVarSetOperationAppend:
63   case eVarSetOperationInvalid:
64     error = OptionValue::SetValueFromString(value_str, op);
65     break;
66   }
67   return error;
68 }
69 
70 void OptionValueBoolean::AutoComplete(CommandInterpreter &interpreter,
71                                       CompletionRequest &request) {
72   llvm::StringRef autocomplete_entries[] = {"true", "false", "on", "off",
73                                             "yes",  "no",    "1",  "0"};
74 
75   auto entries = llvm::makeArrayRef(autocomplete_entries);
76 
77   // only suggest "true" or "false" by default
78   if (request.GetCursorArgumentPrefix().empty())
79     entries = entries.take_front(2);
80 
81   for (auto entry : entries)
82     request.TryCompleteCurrentArg(entry);
83 }
84