contrib/llvm/tools/lldb/source/Interpreter/OptionGroupBoolean.cpp

   1 //===-- OptionGroupBoolean.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/OptionGroupBoolean.h"
  11
  12 // C Includes
  13 // C++ Includes
  14 // Other libraries and framework includes
  15 // Project includes
  16 #include "lldb/Host/OptionParser.h"
  17
  18 using namespace lldb;
  19 using namespace lldb_private;
  20
  21 OptionGroupBoolean::OptionGroupBoolean(uint32_t usage_mask, bool required,
  22                                        const char *long_option,
  23                                        int short_option, const char *usage_text,
  24                                        bool default_value,
  25                                        bool no_argument_toggle_default)
  26     : m_value(default_value, default_value) {
  27   m_option_definition.usage_mask = usage_mask;
  28   m_option_definition.required = required;
  29   m_option_definition.long_option = long_option;
  30   m_option_definition.short_option = short_option;
  31   m_option_definition.validator = nullptr;
  32   m_option_definition.option_has_arg = no_argument_toggle_default
  33                                            ? OptionParser::eNoArgument
  34                                            : OptionParser::eRequiredArgument;
  35   m_option_definition.enum_values = nullptr;
  36   m_option_definition.completion_type = 0;
  37   m_option_definition.argument_type = eArgTypeBoolean;
  38   m_option_definition.usage_text = usage_text;
  39 }
  40
  41 OptionGroupBoolean::~OptionGroupBoolean() {}
  42
  43 Status OptionGroupBoolean::SetOptionValue(uint32_t option_idx,
  44                                           llvm::StringRef option_value,
  45                                           ExecutionContext *execution_context) {
  46   Status error;
  47   if (m_option_definition.option_has_arg == OptionParser::eNoArgument) {
  48     // Not argument, toggle the default value and mark the option as having
  49     // been set
  50     m_value.SetCurrentValue(!m_value.GetDefaultValue());
  51     m_value.SetOptionWasSet();
  52   } else {
  53     error = m_value.SetValueFromString(option_value);
  54   }
  55   return error;
  56 }
  57
  58 void OptionGroupBoolean::OptionParsingStarting(
  59     ExecutionContext *execution_context) {
  60   m_value.Clear();
  61 }