1 //===-- lldb-private-enumerations.h -----------------------------*- 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 
9 #ifndef LLDB_LLDB_PRIVATE_ENUMERATIONS_H
10 #define LLDB_LLDB_PRIVATE_ENUMERATIONS_H
11 
12 #include "llvm/ADT/StringRef.h"
13 #include "llvm/Support/FormatProviders.h"
14 #include "llvm/Support/raw_ostream.h"
15 
16 namespace lldb_private {
17 
18 // Thread Step Types
19 enum StepType {
20   eStepTypeNone,
21   eStepTypeTrace,     ///< Single step one instruction.
22   eStepTypeTraceOver, ///< Single step one instruction, stepping over.
23   eStepTypeInto,      ///< Single step into a specified context.
24   eStepTypeOver,      ///< Single step over a specified context.
25   eStepTypeOut,       ///< Single step out a specified context.
26   eStepTypeScripted   ///< A step type implemented by the script interpreter.
27 };
28 
29 // Address Types
30 enum AddressType {
31   eAddressTypeInvalid = 0,
32   eAddressTypeFile, ///< Address is an address as found in an object or symbol
33                     /// file
34   eAddressTypeLoad, ///< Address is an address as in the current target inferior
35                     /// process
36   eAddressTypeHost  ///< Address is an address in the process that is running
37                     /// this code
38 };
39 
40 // Address Class
41 //
42 // A way of classifying an address used for disassembling and setting
43 // breakpoints. Many object files can track exactly what parts of their object
44 // files are code, data and other information. This is of course above and
45 // beyond just looking at the section types. For example, code might contain PC
46 // relative data and the object file might be able to tell us that an address
47 // in code is data.
48 enum class AddressClass {
49   eInvalid,
50   eUnknown,
51   eCode,
52   eCodeAlternateISA,
53   eData,
54   eDebug,
55   eRuntime
56 };
57 
58 // Votes - Need a tri-state, yes, no, no opinion...
59 enum Vote { eVoteNo = -1, eVoteNoOpinion = 0, eVoteYes = 1 };
60 
61 enum ArchitectureType {
62   eArchTypeInvalid,
63   eArchTypeMachO,
64   eArchTypeELF,
65   eArchTypeCOFF,
66   kNumArchTypes
67 };
68 
69 /// Settable state variable types.
70 ///
71 
72 // typedef enum SettableVariableType
73 //{
74 //    eSetVarTypeInt,
75 //    eSetVarTypeBoolean,
76 //    eSetVarTypeString,
77 //    eSetVarTypeArray,
78 //    eSetVarTypeDictionary,
79 //    eSetVarTypeEnum,
80 //    eSetVarTypeNone
81 //} SettableVariableType;
82 
83 enum VarSetOperationType {
84   eVarSetOperationReplace,
85   eVarSetOperationInsertBefore,
86   eVarSetOperationInsertAfter,
87   eVarSetOperationRemove,
88   eVarSetOperationAppend,
89   eVarSetOperationClear,
90   eVarSetOperationAssign,
91   eVarSetOperationInvalid
92 };
93 
94 enum ArgumentRepetitionType {
95   eArgRepeatPlain,        // Exactly one occurrence
96   eArgRepeatOptional,     // At most one occurrence, but it's optional
97   eArgRepeatPlus,         // One or more occurrences
98   eArgRepeatStar,         // Zero or more occurrences
99   eArgRepeatRange,        // Repetition of same argument, from 1 to n
100   eArgRepeatPairPlain,    // A pair of arguments that must always go together
101                           // ([arg-type arg-value]), occurs exactly once
102   eArgRepeatPairOptional, // A pair that occurs at most once (optional)
103   eArgRepeatPairPlus,     // One or more occurrences of a pair
104   eArgRepeatPairStar,     // Zero or more occurrences of a pair
105   eArgRepeatPairRange,    // A pair that repeats from 1 to n
106   eArgRepeatPairRangeOptional // A pair that repeats from 1 to n, but is
107                               // optional
108 };
109 
110 enum SortOrder { eSortOrderNone, eSortOrderByAddress, eSortOrderByName };
111 
112 // LazyBool is for boolean values that need to be calculated lazily. Values
113 // start off set to eLazyBoolCalculate, and then they can be calculated once
114 // and set to eLazyBoolNo or eLazyBoolYes.
115 enum LazyBool { eLazyBoolCalculate = -1, eLazyBoolNo = 0, eLazyBoolYes = 1 };
116 
117 /// Instruction types
118 enum InstructionType {
119   eInstructionTypeAny, // Support for any instructions at all (at least one)
120   eInstructionTypePrologueEpilogue, // All prologue and epilogue instructions
121                                     // that push and pop register values and
122                                     // modify sp/fp
123   eInstructionTypePCModifying,      // Any instruction that modifies the program
124                                     // counter/instruction pointer
125   eInstructionTypeAll               // All instructions of any kind
126 
127 };
128 
129 /// Format category entry types
130 enum FormatCategoryItem {
131   eFormatCategoryItemSummary = 1,
132   eFormatCategoryItemFilter = 1 << 1,
133   eFormatCategoryItemSynth = 1 << 2,
134   eFormatCategoryItemFormat = 1 << 3,
135 };
136 
137 /// Expression execution policies
138 enum ExecutionPolicy {
139   eExecutionPolicyOnlyWhenNeeded,
140   eExecutionPolicyNever,
141   eExecutionPolicyAlways,
142   eExecutionPolicyTopLevel // used for top-level code
143 };
144 
145 // Synchronicity behavior of scripted commands
146 enum ScriptedCommandSynchronicity {
147   eScriptedCommandSynchronicitySynchronous,
148   eScriptedCommandSynchronicityAsynchronous,
149   eScriptedCommandSynchronicityCurrentValue // use whatever the current
150                                             // synchronicity is
151 };
152 
153 // Verbosity mode of "po" output
154 enum LanguageRuntimeDescriptionDisplayVerbosity {
155   eLanguageRuntimeDescriptionDisplayVerbosityCompact, // only print the
156                                                       // description string, if
157                                                       // any
158   eLanguageRuntimeDescriptionDisplayVerbosityFull,    // print the full-blown
159                                                       // output
160 };
161 
162 // Loading modules from memory
163 enum MemoryModuleLoadLevel {
164   eMemoryModuleLoadLevelMinimal,  // Load sections only
165   eMemoryModuleLoadLevelPartial,  // Load function bounds but no symbols
166   eMemoryModuleLoadLevelComplete, // Load sections and all symbols
167 };
168 
169 // Behavior on fork/vfork
170 enum FollowForkMode {
171   eFollowParent, // Follow parent process
172   eFollowChild,  // Follow child process
173 };
174 
175 // Result enums for when reading multiple lines from IOHandlers
176 enum class LineStatus {
177   Success, // The line that was just edited if good and should be added to the
178            // lines
179   Status,  // There is an error with the current line and it needs to be
180            // re-edited
181            // before it can be accepted
182   Done     // Lines are complete
183 };
184 
185 // Boolean result of running a Type Validator
186 enum class TypeValidatorResult : bool { Success = true, Failure = false };
187 
188 // Enumerations that can be used to specify scopes types when looking up types.
189 enum class CompilerContextKind : uint16_t {
190   Invalid = 0,
191   TranslationUnit = 1,
192   Module = 1 << 1,
193   Namespace = 1 << 2,
194   Class = 1 << 3,
195   Struct = 1 << 4,
196   Union = 1 << 5,
197   Function = 1 << 6,
198   Variable = 1 << 7,
199   Enum = 1 << 8,
200   Typedef = 1 << 9,
201 
202   Any = 1 << 15,
203   /// Match 0..n nested modules.
204   AnyModule = Any | Module,
205   /// Match any type.
206   AnyType = Any | Class | Struct | Union | Enum | Typedef
207 };
208 
209 // Enumerations that can be used to specify the kind of metric we're looking at
210 // when collecting stats.
211 enum StatisticKind {
212   ExpressionSuccessful = 0,
213   ExpressionFailure = 1,
214   FrameVarSuccess = 2,
215   FrameVarFailure = 3,
216   StatisticMax = 4
217 };
218 
219 // Enumeration that can be used to specify a log handler.
220 enum LogHandlerKind {
221   eLogHandlerStream,
222   eLogHandlerCallback,
223   eLogHandlerCircular,
224   eLogHandlerSystem,
225   eLogHandlerDefault = eLogHandlerStream,
226 };
227 
228 enum LoadDependentFiles {
229   eLoadDependentsDefault,
230   eLoadDependentsYes,
231   eLoadDependentsNo,
232 };
233 
GetStatDescription(lldb_private::StatisticKind K)234 inline std::string GetStatDescription(lldb_private::StatisticKind K) {
235    switch (K) {
236    case StatisticKind::ExpressionSuccessful:
237      return "Number of expr evaluation successes";
238    case StatisticKind::ExpressionFailure:
239      return "Number of expr evaluation failures";
240    case StatisticKind::FrameVarSuccess:
241      return "Number of frame var successes";
242    case StatisticKind::FrameVarFailure:
243      return "Number of frame var failures";
244    case StatisticKind::StatisticMax:
245      return "";
246    }
247    llvm_unreachable("Statistic not registered!");
248 }
249 
250 } // namespace lldb_private
251 
252 namespace llvm {
253 template <> struct format_provider<lldb_private::Vote> {
254   static void format(const lldb_private::Vote &V, llvm::raw_ostream &Stream,
255                      StringRef Style) {
256     switch (V) {
257     case lldb_private::eVoteNo:
258       Stream << "no";
259       return;
260     case lldb_private::eVoteNoOpinion:
261       Stream << "no opinion";
262       return;
263     case lldb_private::eVoteYes:
264       Stream << "yes";
265       return;
266     }
267     Stream << "invalid";
268   }
269 };
270 }
271 
272 #endif // LLDB_LLDB_PRIVATE_ENUMERATIONS_H
273