lldb/source/Interpreter/OptionValueBoolean.cpp

   1 //===-- OptionValueBoolean.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/OptionValueBoolean.h"
  10
  11 #include "lldb/Host/PosixApi.h"
  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 OptionValueBoolean::DumpValue(const ExecutionContext *exe_ctx,
  21                                    Stream &strm, uint32_t dump_mask) {
  22   if (dump_mask & eDumpOptionType)
  23     strm.Printf("(%s)", GetTypeAsCString());
  24   //    if (dump_mask & eDumpOptionName)
  25   //        DumpQualifiedName (strm);
  26   if (dump_mask & eDumpOptionValue) {
  27     if (dump_mask & eDumpOptionType)
  28       strm.PutCString(" = ");
  29     strm.PutCString(m_current_value ? "true" : "false");
  30   }
  31 }
  32
  33 Status OptionValueBoolean::SetValueFromString(llvm::StringRef value_str,
  34                                               VarSetOperationType op) {
  35   Status error;
  36   switch (op) {
  37   case eVarSetOperationClear:
  38     Clear();
  39     NotifyValueChanged();
  40     break;
  41
  42   case eVarSetOperationReplace:
  43   case eVarSetOperationAssign: {
  44     bool success = false;
  45     bool value = OptionArgParser::ToBoolean(value_str, false, &success);
  46     if (success) {
  47       m_value_was_set = true;
  48       m_current_value = value;
  49       NotifyValueChanged();
  50     } else {
  51       if (value_str.size() == 0)
  52         error = Status::FromErrorString("invalid boolean string value <empty>");
  53       else
  54         error = Status::FromErrorStringWithFormat(
  55             "invalid boolean string value: '%s'", value_str.str().c_str());
  56     }
  57   } break;
  58
  59   case eVarSetOperationInsertBefore:
  60   case eVarSetOperationInsertAfter:
  61   case eVarSetOperationRemove:
  62   case eVarSetOperationAppend:
  63   case eVarSetOperationInvalid:
  64     error = OptionValue::SetValueFromString(value_str, op);
  65     break;
  66   }
  67   return error;
  68 }
  69
  70 void OptionValueBoolean::AutoComplete(CommandInterpreter &interpreter,
  71                                       CompletionRequest &request) {
  72   llvm::StringRef autocomplete_entries[] = {"true", "false", "on", "off",
  73                                             "yes",  "no",    "1",  "0"};
  74
  75   auto entries = llvm::ArrayRef(autocomplete_entries);
  76
  77   // only suggest "true" or "false" by default
  78   if (request.GetCursorArgumentPrefix().empty())
  79     entries = entries.take_front(2);
  80
  81   for (auto entry : entries)
  82     request.TryCompleteCurrentArg(entry);
  83 }