LLDB mainline
OptionValuePathMappings.cpp
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1//===-- OptionValuePathMappings.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
10
12#include "lldb/Utility/Args.h"
14#include "lldb/Utility/Stream.h"
15
16using namespace lldb;
17using namespace lldb_private;
18
19static bool VerifyPathExists(const char *path) {
20 if (path && path[0])
21 return FileSystem::Instance().Exists(path);
22 else
23 return false;
24}
25
27 Stream &strm, uint32_t dump_mask) {
28 if (dump_mask & eDumpOptionType)
29 strm.Printf("(%s)", GetTypeAsCString());
30 if (dump_mask & eDumpOptionValue) {
31 if (dump_mask & eDumpOptionType)
32 strm.Printf(" =%s", (m_path_mappings.GetSize() > 0) ? "\n" : "");
33 m_path_mappings.Dump(&strm);
34 }
35}
36
37llvm::json::Value
39 return m_path_mappings.ToJSON();
40}
41
45 Args args(value.str());
46 const size_t argc = args.GetArgumentCount();
47
48 switch (op) {
50 Clear();
52 break;
53
55 // Must be at least one index + 1 pair of paths, and the pair count must be
56 // even
57 if (argc >= 3 && (((argc - 1) & 1) == 0)) {
58 uint32_t idx;
59 const uint32_t count = m_path_mappings.GetSize();
60 if (!llvm::to_integer(args.GetArgumentAtIndex(0), idx) || idx > count) {
61 error.SetErrorStringWithFormat(
62 "invalid file list index %s, index must be 0 through %u",
63 args.GetArgumentAtIndex(0), count);
64 } else {
65 bool changed = false;
66 for (size_t i = 1; i < argc; idx++, i += 2) {
67 const char *orginal_path = args.GetArgumentAtIndex(i);
68 const char *replace_path = args.GetArgumentAtIndex(i + 1);
69 if (VerifyPathExists(replace_path)) {
70 if (!m_path_mappings.Replace(orginal_path, replace_path, idx,
72 m_path_mappings.Append(orginal_path, replace_path,
74 changed = true;
75 } else {
76 std::string previousError =
77 error.Fail() ? std::string(error.AsCString()) + "\n" : "";
78 error.SetErrorStringWithFormat(
79 "%sthe replacement path doesn't exist: \"%s\"",
80 previousError.c_str(), replace_path);
81 }
82 }
83 if (changed)
85 }
86 } else {
87 error.SetErrorString("replace operation takes an array index followed by "
88 "one or more path pairs");
89 }
90 break;
91
93 if (argc < 2 || (argc & 1)) {
94 error.SetErrorString("assign operation takes one or more path pairs");
95 break;
96 }
98 // Fall through to append case
99 [[fallthrough]];
101 if (argc < 2 || (argc & 1)) {
102 error.SetErrorString("append operation takes one or more path pairs");
103 break;
104 } else {
105 bool changed = false;
106 for (size_t i = 0; i < argc; i += 2) {
107 const char *orginal_path = args.GetArgumentAtIndex(i);
108 const char *replace_path = args.GetArgumentAtIndex(i + 1);
109 if (VerifyPathExists(replace_path)) {
110 m_path_mappings.Append(orginal_path, replace_path, m_notify_changes);
111 m_value_was_set = true;
112 changed = true;
113 } else {
114 std::string previousError =
115 error.Fail() ? std::string(error.AsCString()) + "\n" : "";
116 error.SetErrorStringWithFormat(
117 "%sthe replacement path doesn't exist: \"%s\"",
118 previousError.c_str(), replace_path);
119 }
120 }
121 if (changed)
123 }
124 break;
125
128 // Must be at least one index + 1 pair of paths, and the pair count must be
129 // even
130 if (argc >= 3 && (((argc - 1) & 1) == 0)) {
131 uint32_t idx;
132 const uint32_t count = m_path_mappings.GetSize();
133 if (!llvm::to_integer(args.GetArgumentAtIndex(0), idx) || idx > count) {
134 error.SetErrorStringWithFormat(
135 "invalid file list index %s, index must be 0 through %u",
136 args.GetArgumentAtIndex(0), count);
137 } else {
138 bool changed = false;
140 ++idx;
141 for (size_t i = 1; i < argc; i += 2) {
142 const char *orginal_path = args.GetArgumentAtIndex(i);
143 const char *replace_path = args.GetArgumentAtIndex(i + 1);
144 if (VerifyPathExists(replace_path)) {
145 m_path_mappings.Insert(orginal_path, replace_path, idx,
147 changed = true;
148 idx++;
149 } else {
150 std::string previousError =
151 error.Fail() ? std::string(error.AsCString()) + "\n" : "";
152 error.SetErrorStringWithFormat(
153 "%sthe replacement path doesn't exist: \"%s\"",
154 previousError.c_str(), replace_path);
155 }
156 }
157 if (changed)
159 }
160 } else {
161 error.SetErrorString("insert operation takes an array index followed by "
162 "one or more path pairs");
163 }
164 break;
165
167 if (argc > 0) {
168 std::vector<int> remove_indexes;
169 for (size_t i = 0; i < argc; ++i) {
170 int idx;
171 if (!llvm::to_integer(args.GetArgumentAtIndex(i), idx) || idx < 0 ||
172 idx >= (int)m_path_mappings.GetSize()) {
173 error.SetErrorStringWithFormat(
174 "invalid array index '%s', aborting remove operation",
175 args.GetArgumentAtIndex(i));
176 break;
177 } else
178 remove_indexes.push_back(idx);
179 }
180
181 // Sort and then erase in reverse so indexes are always valid
182 llvm::sort(remove_indexes);
183 for (auto index : llvm::reverse(remove_indexes))
186 } else {
187 error.SetErrorString("remove operation takes one or more array index");
188 }
189 break;
190
193 break;
194 }
195 return error;
196}
static llvm::raw_ostream & error(Stream &strm)
static bool VerifyPathExists(const char *path)
A command line argument class.
Definition: Args.h:33
size_t GetArgumentCount() const
Gets the number of arguments left in this command object.
Definition: Args.h:116
const char * GetArgumentAtIndex(size_t idx) const
Gets the NULL terminated C string argument pointer for the argument at index idx.
Definition: Args.cpp:264
"lldb/Target/ExecutionContext.h" A class that contains an execution context.
bool Exists(const FileSpec &file_spec) const
Returns whether the given file exists.
static FileSystem & Instance()
llvm::json::Value ToJSON(const ExecutionContext *exe_ctx) override
Status SetValueFromString(llvm::StringRef value, VarSetOperationType op=eVarSetOperationAssign) override
void DumpValue(const ExecutionContext *exe_ctx, Stream &strm, uint32_t dump_mask) override
virtual Status SetValueFromString(llvm::StringRef value, VarSetOperationType op=eVarSetOperationAssign)
virtual const char * GetTypeAsCString() const
Definition: OptionValue.h:77
bool Remove(size_t index, bool notify)
bool Replace(llvm::StringRef path, llvm::StringRef replacement, bool notify)
void Insert(llvm::StringRef path, llvm::StringRef replacement, uint32_t insert_idx, bool notify)
void Append(llvm::StringRef path, llvm::StringRef replacement, bool notify)
void Dump(Stream *s, int pair_index=-1)
An error handling class.
Definition: Status.h:44
A stream class that can stream formatted output to a file.
Definition: Stream.h:28
size_t Printf(const char *format,...) __attribute__((format(printf
Output printf formatted output to the stream.
Definition: Stream.cpp:107
A class that represents a running process on the host machine.
VarSetOperationType
Settable state variable types.
Definition: SBAddress.h:15