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