1 //===-- OptionValueChar.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/OptionValueChar.h"
11 
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 OptionValueChar::DumpValue(const ExecutionContext *exe_ctx, Stream &strm,
21                                 uint32_t dump_mask) {
22   if (dump_mask & eDumpOptionType)
23     strm.Printf("(%s)", GetTypeAsCString());
24 
25   if (dump_mask & eDumpOptionValue) {
26     if (dump_mask & eDumpOptionType)
27       strm.PutCString(" = ");
28     if (m_current_value != '\0')
29       strm.PutChar(m_current_value);
30     else
31       strm.PutCString("(null)");
32   }
33 }
34 
35 Status OptionValueChar::SetValueFromString(llvm::StringRef value,
36                                            VarSetOperationType op) {
37   Status error;
38   switch (op) {
39   case eVarSetOperationClear:
40     Clear();
41     break;
42 
43   case eVarSetOperationReplace:
44   case eVarSetOperationAssign: {
45     bool success = false;
46     char char_value = OptionArgParser::ToChar(value, '\0', &success);
47     if (success) {
48       m_current_value = char_value;
49       m_value_was_set = true;
50     } else
51       error.SetErrorStringWithFormat("'%s' cannot be longer than 1 character",
52                                      value.str().c_str());
53   } break;
54 
55   default:
56     error = OptionValue::SetValueFromString(value, op);
57     break;
58   }
59   return error;
60 }
61 
62 lldb::OptionValueSP OptionValueChar::DeepCopy() const {
63   return OptionValueSP(new OptionValueChar(*this));
64 }
65