lldb/source/Interpreter/OptionValueChar.cpp

   1 //===-- OptionValueChar.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/OptionValueChar.h"
  10
  11 #include "lldb/Interpreter/OptionArgParser.h"
  12 #include "lldb/Utility/Stream.h"
  13 #include "lldb/Utility/StringList.h"
  14 #include "llvm/ADT/STLExtras.h"
  15
  16 using namespace lldb;
  17 using namespace lldb_private;
  18
  19 void OptionValueChar::DumpValue(const ExecutionContext *exe_ctx, Stream &strm,
  20                                 uint32_t dump_mask) {
  21   if (dump_mask & eDumpOptionType)
  22     strm.Printf("(%s)", GetTypeAsCString());
  23
  24   if (dump_mask & eDumpOptionValue) {
  25     if (dump_mask & eDumpOptionType)
  26       strm.PutCString(" = ");
  27     if (m_current_value != '\0')
  28       strm.PutChar(m_current_value);
  29     else
  30       strm.PutCString("(null)");
  31   }
  32 }
  33
  34 Status OptionValueChar::SetValueFromString(llvm::StringRef value,
  35                                            VarSetOperationType op) {
  36   Status error;
  37   switch (op) {
  38   case eVarSetOperationClear:
  39     Clear();
  40     break;
  41
  42   case eVarSetOperationReplace:
  43   case eVarSetOperationAssign: {
  44     bool success = false;
  45     char char_value = OptionArgParser::ToChar(value, '\0', &success);
  46     if (success) {
  47       m_current_value = char_value;
  48       m_value_was_set = true;
  49     } else
  50       return Status::FromErrorStringWithFormatv(
  51           "'{0}' cannot be longer than 1 character", value);
  52   } break;
  53
  54   default:
  55     error = OptionValue::SetValueFromString(value, op);
  56     break;
  57   }
  58   return error;
  59 }