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OptionValueBoolean.cpp
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1 //===-- OptionValueBoolean.cpp ----------------------------------*- C++ -*-===//
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 
10 
11 #include "lldb/Host/PosixApi.h"
13 #include "lldb/Utility/Stream.h"
15 #include "llvm/ADT/STLExtras.h"
16 
17 using namespace lldb;
18 using namespace lldb_private;
19 
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,
35  Status error;
36  switch (op) {
38  Clear();
39  NotifyValueChanged();
40  break;
41 
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.SetErrorString("invalid boolean string value <empty>");
53  else
54  error.SetErrorStringWithFormat("invalid boolean string value: '%s'",
55  value_str.str().c_str());
56  }
57  } break;
58 
64  error = OptionValue::SetValueFromString(value_str, op);
65  break;
66  }
67  return error;
68 }
69 
70 lldb::OptionValueSP OptionValueBoolean::DeepCopy() const {
71  return OptionValueSP(new OptionValueBoolean(*this));
72 }
73 
74 size_t OptionValueBoolean::AutoComplete(CommandInterpreter &interpreter,
75  CompletionRequest &request) {
76  request.SetWordComplete(false);
77  static const llvm::StringRef g_autocomplete_entries[] = {
78  "true", "false", "on", "off", "yes", "no", "1", "0"};
79 
80  auto entries = llvm::makeArrayRef(g_autocomplete_entries);
81 
82  // only suggest "true" or "false" by default
83  if (request.GetCursorArgumentPrefix().empty())
84  entries = entries.take_front(2);
85 
86  for (auto entry : entries) {
87  if (entry.startswith_lower(request.GetCursorArgumentPrefix()))
88  request.AddCompletion(entry);
89  }
90  return request.GetNumberOfMatches();
91 }
size_t PutCString(llvm::StringRef cstr)
Output a C string to the stream.
Definition: Stream.cpp:61
Enumerations for broadcasting.
Definition: SBLaunchInfo.h:14
A stream class that can stream formatted output to a file.
Definition: Stream.h:28
std::size_t GetNumberOfMatches() const
"lldb/Target/ExecutionContext.h" A class that contains an execution context.
void AddCompletion(llvm::StringRef completion, llvm::StringRef description="")
Adds a possible completion string.
"lldb/Utility/ArgCompletionRequest.h"
llvm::StringRef GetCursorArgumentPrefix() const
VarSetOperationType
Settable state variable types.
void SetErrorString(llvm::StringRef err_str)
Set the current error string to err_str.
Definition: Status.cpp:241
size_t Printf(const char *format,...) __attribute__((format(printf
Output printf formatted output to the stream.
Definition: Stream.cpp:106
Definition: SBAddress.h:15
int SetErrorStringWithFormat(const char *format,...) __attribute__((format(printf
Set the current error string to a formatted error string.
Definition: Status.cpp:255
static bool DumpValue(Stream &s, const SymbolContext *sc, const ExecutionContext *exe_ctx, const FormatEntity::Entry &entry, ValueObject *valobj)
An error handling class.
Definition: Status.h:44