1//===-- OptionValueEnumeration.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/OptionValueEnumeration.h"
10
11#include "lldb/Utility/StringList.h"
12
13using namespace lldb;
14using namespace lldb_private;
15
16OptionValueEnumeration::OptionValueEnumeration(
17 const OptionEnumValues &enumerators, enum_type value)
18 : m_current_value(value), m_default_value(value) {
19 SetEnumerations(enumerators);
20}
21
22void OptionValueEnumeration::DumpValue(const ExecutionContext *exe_ctx,
23 Stream &strm, uint32_t dump_mask) {
24 if (dump_mask & eDumpOptionType)
25 strm.Printf(format: "(%s)", GetTypeAsCString());
26 if (dump_mask & eDumpOptionValue) {
27 if (dump_mask & eDumpOptionType)
28 strm.PutCString(cstr: " = ");
29 const size_t count = m_enumerations.GetSize();
30 for (size_t i = 0; i < count; ++i) {
31 if (m_enumerations.GetValueAtIndexUnchecked(idx: i).value == m_current_value) {
32 strm.PutCString(cstr: m_enumerations.GetCStringAtIndex(idx: i).GetStringRef());
33 return;
34 }
35 }
36 strm.Printf(format: "%" PRIu64, (uint64_t)m_current_value);
37 }
38}
39
40llvm::json::Value
41OptionValueEnumeration::ToJSON(const ExecutionContext *exe_ctx) const {
42 for (const auto &enums : m_enumerations) {
43 if (enums.value.value == m_current_value)
44 return enums.cstring.GetStringRef();
45 }
46
47 return std::to_string(val: static_cast<uint64_t>(m_current_value));
48}
49
50Status OptionValueEnumeration::SetValueFromString(llvm::StringRef value,
51 VarSetOperationType op) {
52 Status error;
53 switch (op) {
54 case eVarSetOperationClear:
55 Clear();
56 NotifyValueChanged();
57 break;
58
59 case eVarSetOperationReplace:
60 case eVarSetOperationAssign: {
61 ConstString const_enumerator_name(value.trim());
62 const EnumerationMapEntry *enumerator_entry =
63 m_enumerations.FindFirstValueForName(unique_cstr: const_enumerator_name);
64 if (enumerator_entry) {
65 m_current_value = enumerator_entry->value.value;
66 NotifyValueChanged();
67 } else {
68 StreamString error_strm;
69 error_strm.Printf(format: "invalid enumeration value '%s'", value.str().c_str());
70 const size_t count = m_enumerations.GetSize();
71 if (count) {
72 error_strm.Printf(format: ", valid values are: %s",
73 m_enumerations.GetCStringAtIndex(idx: 0).GetCString());
74 for (size_t i = 1; i < count; ++i) {
75 error_strm.Printf(format: ", %s",
76 m_enumerations.GetCStringAtIndex(idx: i).GetCString());
77 }
78 }
79 error = Status(error_strm.GetString().str());
80 }
81 break;
82 }
83
84 case eVarSetOperationInsertBefore:
85 case eVarSetOperationInsertAfter:
86 case eVarSetOperationRemove:
87 case eVarSetOperationAppend:
88 case eVarSetOperationInvalid:
89 error = OptionValue::SetValueFromString(value, op);
90 break;
91 }
92 return error;
93}
94
95void OptionValueEnumeration::SetEnumerations(
96 const OptionEnumValues &enumerators) {
97 m_enumerations.Clear();
98
99 for (const auto &enumerator : enumerators) {
100 ConstString const_enumerator_name(enumerator.string_value);
101 EnumeratorInfo enumerator_info = {.value: enumerator.value, .description: enumerator.usage};
102 m_enumerations.Append(unique_cstr: const_enumerator_name, value: enumerator_info);
103 }
104
105 m_enumerations.Sort();
106}
107
108void OptionValueEnumeration::AutoComplete(CommandInterpreter &interpreter,
109 CompletionRequest &request) {
110 const uint32_t num_enumerators = m_enumerations.GetSize();
111 if (!request.GetCursorArgumentPrefix().empty()) {
112 for (size_t i = 0; i < num_enumerators; ++i) {
113 llvm::StringRef name = m_enumerations.GetCStringAtIndex(idx: i).GetStringRef();
114 request.TryCompleteCurrentArg(completion: name);
115 }
116 return;
117 }
118 for (size_t i = 0; i < num_enumerators; ++i)
119 request.AddCompletion(completion: m_enumerations.GetCStringAtIndex(idx: i).GetStringRef());
120}
121

source code of lldb/source/Interpreter/OptionValueEnumeration.cpp