1 //===-- OptionValueBoolean.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 "lldb/Interpreter/OptionValueBoolean.h"
11
12 // C Includes
13 // C++ Includes
14 // Other libraries and framework includes
15 // Project includes
16 #include "lldb/Core/Stream.h"
17 #include "lldb/Core/StringList.h"
18 #include "lldb/Interpreter/Args.h"
19 #include "llvm/ADT/STLExtras.h"
20
21 using namespace lldb;
22 using namespace lldb_private;
23
24 void
DumpValue(const ExecutionContext * exe_ctx,Stream & strm,uint32_t dump_mask)25 OptionValueBoolean::DumpValue (const ExecutionContext *exe_ctx, Stream &strm, uint32_t dump_mask)
26 {
27 if (dump_mask & eDumpOptionType)
28 strm.Printf ("(%s)", GetTypeAsCString ());
29 // if (dump_mask & eDumpOptionName)
30 // DumpQualifiedName (strm);
31 if (dump_mask & eDumpOptionValue)
32 {
33 if (dump_mask & eDumpOptionType)
34 strm.PutCString (" = ");
35 strm.PutCString (m_current_value ? "true" : "false");
36 }
37 }
38
39 Error
SetValueFromString(llvm::StringRef value_str,VarSetOperationType op)40 OptionValueBoolean::SetValueFromString (llvm::StringRef value_str,
41 VarSetOperationType op)
42 {
43 Error error;
44 switch (op)
45 {
46 case eVarSetOperationClear:
47 Clear();
48 NotifyValueChanged();
49 break;
50
51 case eVarSetOperationReplace:
52 case eVarSetOperationAssign:
53 {
54 bool success = false;
55 bool value = Args::StringToBoolean(value_str.str().c_str(), false, &success);
56 if (success)
57 {
58 m_value_was_set = true;
59 m_current_value = value;
60 NotifyValueChanged();
61 }
62 else
63 {
64 if (value_str.size() == 0)
65 error.SetErrorString ("invalid boolean string value <empty>");
66 else
67 error.SetErrorStringWithFormat ("invalid boolean string value: '%s'",
68 value_str.str().c_str());
69 }
70 }
71 break;
72
73 case eVarSetOperationInsertBefore:
74 case eVarSetOperationInsertAfter:
75 case eVarSetOperationRemove:
76 case eVarSetOperationAppend:
77 case eVarSetOperationInvalid:
78 error = OptionValue::SetValueFromString (value_str, op);
79 break;
80 }
81 return error;
82 }
83
84 lldb::OptionValueSP
DeepCopy() const85 OptionValueBoolean::DeepCopy () const
86 {
87 return OptionValueSP(new OptionValueBoolean(*this));
88 }
89
90 size_t
AutoComplete(CommandInterpreter & interpreter,const char * s,int match_start_point,int max_return_elements,bool & word_complete,StringList & matches)91 OptionValueBoolean::AutoComplete (CommandInterpreter &interpreter,
92 const char *s,
93 int match_start_point,
94 int max_return_elements,
95 bool &word_complete,
96 StringList &matches)
97 {
98 word_complete = false;
99 matches.Clear();
100 struct StringEntry {
101 const char *string;
102 const size_t length;
103 };
104 static const StringEntry g_autocomplete_entries[] =
105 {
106 { "true" , 4 },
107 { "false", 5 },
108 { "on" , 2 },
109 { "off" , 3 },
110 { "yes" , 3 },
111 { "no" , 2 },
112 { "1" , 1 },
113 { "0" , 1 },
114 };
115 const size_t k_num_autocomplete_entries = llvm::array_lengthof(g_autocomplete_entries);
116
117 if (s && s[0])
118 {
119 const size_t s_len = strlen(s);
120 for (size_t i=0; i<k_num_autocomplete_entries; ++i)
121 {
122 if (s_len <= g_autocomplete_entries[i].length)
123 if (::strncasecmp(s, g_autocomplete_entries[i].string, s_len) == 0)
124 matches.AppendString(g_autocomplete_entries[i].string);
125 }
126 }
127 else
128 {
129 // only suggest "true" or "false" by default
130 for (size_t i=0; i<2; ++i)
131 matches.AppendString(g_autocomplete_entries[i].string);
132 }
133 return matches.GetSize();
134 }
135
136
137
138