summaryrefslogtreecommitdiffstats
path: root/lldb/source/Interpreter/OptionValueEnumeration.cpp
blob: 2bff0bdcec37e993b8d7582903d79238ac4c342d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
//===-- OptionValueEnumeration.cpp ------------------------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

#include "lldb/Interpreter/OptionValueEnumeration.h"

// C Includes
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/Utility/StringList.h"

using namespace lldb;
using namespace lldb_private;

OptionValueEnumeration::OptionValueEnumeration(
    const OptionEnumValueElement *enumerators, enum_type value)
    : OptionValue(), m_current_value(value), m_default_value(value),
      m_enumerations() {
  SetEnumerations(enumerators);
}

OptionValueEnumeration::~OptionValueEnumeration() {}

void OptionValueEnumeration::DumpValue(const ExecutionContext *exe_ctx,
                                       Stream &strm, uint32_t dump_mask) {
  if (dump_mask & eDumpOptionType)
    strm.Printf("(%s)", GetTypeAsCString());
  if (dump_mask & eDumpOptionValue) {
    if (dump_mask & eDumpOptionType)
      strm.PutCString(" = ");
    const size_t count = m_enumerations.GetSize();
    for (size_t i = 0; i < count; ++i) {
      if (m_enumerations.GetValueAtIndexUnchecked(i).value == m_current_value) {
        strm.PutCString(m_enumerations.GetCStringAtIndex(i).GetStringRef());
        return;
      }
    }
    strm.Printf("%" PRIu64, (uint64_t)m_current_value);
  }
}

Error OptionValueEnumeration::SetValueFromString(llvm::StringRef value,
                                                 VarSetOperationType op) {
  Error error;
  switch (op) {
  case eVarSetOperationClear:
    Clear();
    NotifyValueChanged();
    break;

  case eVarSetOperationReplace:
  case eVarSetOperationAssign: {
    ConstString const_enumerator_name(value.trim());
    const EnumerationMapEntry *enumerator_entry =
        m_enumerations.FindFirstValueForName(const_enumerator_name);
    if (enumerator_entry) {
      m_current_value = enumerator_entry->value.value;
      NotifyValueChanged();
    } else {
      StreamString error_strm;
      error_strm.Printf("invalid enumeration value '%s'", value.str().c_str());
      const size_t count = m_enumerations.GetSize();
      if (count) {
        error_strm.Printf(", valid values are: %s",
                          m_enumerations.GetCStringAtIndex(0).GetCString());
        for (size_t i = 1; i < count; ++i) {
          error_strm.Printf(", %s",
                            m_enumerations.GetCStringAtIndex(i).GetCString());
        }
      }
      error.SetErrorString(error_strm.GetString());
    }
    break;
  }

  case eVarSetOperationInsertBefore:
  case eVarSetOperationInsertAfter:
  case eVarSetOperationRemove:
  case eVarSetOperationAppend:
  case eVarSetOperationInvalid:
    error = OptionValue::SetValueFromString(value, op);
    break;
  }
  return error;
}

void OptionValueEnumeration::SetEnumerations(
    const OptionEnumValueElement *enumerators) {
  m_enumerations.Clear();
  if (enumerators) {
    for (size_t i = 0; enumerators[i].string_value != nullptr; ++i) {
      ConstString const_enumerator_name(enumerators[i].string_value);
      EnumeratorInfo enumerator_info = {enumerators[i].value,
                                        enumerators[i].usage};
      m_enumerations.Append(const_enumerator_name,
                            enumerator_info);
    }
    m_enumerations.Sort();
  }
}

lldb::OptionValueSP OptionValueEnumeration::DeepCopy() const {
  return OptionValueSP(new OptionValueEnumeration(*this));
}

size_t OptionValueEnumeration::AutoComplete(
    CommandInterpreter &interpreter, llvm::StringRef s, int match_start_point,
    int max_return_elements, bool &word_complete, StringList &matches) {
  word_complete = false;
  matches.Clear();

  const uint32_t num_enumerators = m_enumerations.GetSize();
  if (!s.empty()) {
    for (size_t i = 0; i < num_enumerators; ++i) {
      llvm::StringRef name = m_enumerations.GetCStringAtIndex(i).GetStringRef();
      if (name.startswith(s))
        matches.AppendString(name);
    }
  } else {
    // only suggest "true" or "false" by default
    for (size_t i = 0; i < num_enumerators; ++i)
      matches.AppendString(m_enumerations.GetCStringAtIndex(i).GetStringRef());
  }
  return matches.GetSize();
}
OpenPOWER on IntegriCloud