[RISCV][VLOPT] Add vector narrowing integer right shift instructions to isSupportedIn...
[llvm-project.git] / lldb / source / Utility / StructuredData.cpp
blobfb4f6920d62eb880159781fe26a73b57fb72bde7
1 //===-- StructuredData.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 //===----------------------------------------------------------------------===//
9 #include "lldb/Utility/StructuredData.h"
10 #include "lldb/Utility/FileSpec.h"
11 #include "lldb/Utility/Status.h"
12 #include "llvm/ADT/StringExtras.h"
13 #include "llvm/Support/MemoryBuffer.h"
14 #include <cerrno>
15 #include <cinttypes>
16 #include <cstdlib>
18 using namespace lldb_private;
19 using namespace llvm;
21 static StructuredData::ObjectSP ParseJSONValue(json::Value &value);
22 static StructuredData::ObjectSP ParseJSONObject(json::Object *object);
23 static StructuredData::ObjectSP ParseJSONArray(json::Array *array);
25 StructuredData::ObjectSP StructuredData::ParseJSON(llvm::StringRef json_text) {
26 llvm::Expected<json::Value> value = json::parse(json_text);
27 if (!value) {
28 llvm::consumeError(value.takeError());
29 return nullptr;
31 return ParseJSONValue(*value);
34 StructuredData::ObjectSP
35 StructuredData::ParseJSONFromFile(const FileSpec &input_spec, Status &error) {
36 StructuredData::ObjectSP return_sp;
38 auto buffer_or_error = llvm::MemoryBuffer::getFile(input_spec.GetPath());
39 if (!buffer_or_error) {
40 error = Status::FromErrorStringWithFormatv(
41 "could not open input file: {0} - {1}.", input_spec.GetPath(),
42 buffer_or_error.getError().message());
43 return return_sp;
45 llvm::Expected<json::Value> value =
46 json::parse(buffer_or_error.get()->getBuffer().str());
47 if (value)
48 return ParseJSONValue(*value);
49 error = Status::FromError(value.takeError());
50 return StructuredData::ObjectSP();
53 bool StructuredData::IsRecordType(const ObjectSP object_sp) {
54 return object_sp->GetType() == lldb::eStructuredDataTypeArray ||
55 object_sp->GetType() == lldb::eStructuredDataTypeDictionary;
58 static StructuredData::ObjectSP ParseJSONValue(json::Value &value) {
59 if (json::Object *O = value.getAsObject())
60 return ParseJSONObject(O);
62 if (json::Array *A = value.getAsArray())
63 return ParseJSONArray(A);
65 if (auto s = value.getAsString())
66 return std::make_shared<StructuredData::String>(*s);
68 if (auto b = value.getAsBoolean())
69 return std::make_shared<StructuredData::Boolean>(*b);
71 if (auto u = value.getAsUINT64())
72 return std::make_shared<StructuredData::UnsignedInteger>(*u);
74 if (auto i = value.getAsInteger())
75 return std::make_shared<StructuredData::SignedInteger>(*i);
77 if (auto d = value.getAsNumber())
78 return std::make_shared<StructuredData::Float>(*d);
80 if (auto n = value.getAsNull())
81 return std::make_shared<StructuredData::Null>();
83 return StructuredData::ObjectSP();
86 static StructuredData::ObjectSP ParseJSONObject(json::Object *object) {
87 auto dict_up = std::make_unique<StructuredData::Dictionary>();
88 for (auto &KV : *object) {
89 StringRef key = KV.first;
90 json::Value value = KV.second;
91 if (StructuredData::ObjectSP value_sp = ParseJSONValue(value))
92 dict_up->AddItem(key, value_sp);
94 return std::move(dict_up);
97 static StructuredData::ObjectSP ParseJSONArray(json::Array *array) {
98 auto array_up = std::make_unique<StructuredData::Array>();
99 for (json::Value &value : *array) {
100 if (StructuredData::ObjectSP value_sp = ParseJSONValue(value))
101 array_up->AddItem(value_sp);
103 return std::move(array_up);
106 StructuredData::ObjectSP
107 StructuredData::Object::GetObjectForDotSeparatedPath(llvm::StringRef path) {
108 if (GetType() == lldb::eStructuredDataTypeDictionary) {
109 std::pair<llvm::StringRef, llvm::StringRef> match = path.split('.');
110 llvm::StringRef key = match.first;
111 ObjectSP value = GetAsDictionary()->GetValueForKey(key);
112 if (!value)
113 return {};
115 // Do we have additional words to descend? If not, return the value
116 // we're at right now.
117 if (match.second.empty())
118 return value;
120 return value->GetObjectForDotSeparatedPath(match.second);
123 if (GetType() == lldb::eStructuredDataTypeArray) {
124 std::pair<llvm::StringRef, llvm::StringRef> match = path.split('[');
125 if (match.second.empty())
126 return shared_from_this();
128 uint64_t val = 0;
129 if (!llvm::to_integer(match.second, val, /* Base = */ 10))
130 return {};
132 return GetAsArray()->GetItemAtIndex(val);
135 return shared_from_this();
138 void StructuredData::Object::DumpToStdout(bool pretty_print) const {
139 json::OStream stream(llvm::outs(), pretty_print ? 2 : 0);
140 Serialize(stream);
143 void StructuredData::Array::Serialize(json::OStream &s) const {
144 s.arrayBegin();
145 for (const auto &item_sp : m_items) {
146 item_sp->Serialize(s);
148 s.arrayEnd();
151 void StructuredData::Float::Serialize(json::OStream &s) const {
152 s.value(m_value);
155 void StructuredData::Boolean::Serialize(json::OStream &s) const {
156 s.value(m_value);
159 void StructuredData::String::Serialize(json::OStream &s) const {
160 s.value(m_value);
163 void StructuredData::Dictionary::Serialize(json::OStream &s) const {
164 s.objectBegin();
166 // To ensure the output format is always stable, we sort the dictionary by key
167 // first.
168 using Entry = std::pair<llvm::StringRef, ObjectSP>;
169 std::vector<Entry> sorted_entries;
170 for (const auto &pair : m_dict)
171 sorted_entries.push_back({pair.first(), pair.second});
173 llvm::sort(sorted_entries);
175 for (const auto &pair : sorted_entries) {
176 s.attributeBegin(pair.first);
177 pair.second->Serialize(s);
178 s.attributeEnd();
180 s.objectEnd();
183 void StructuredData::Null::Serialize(json::OStream &s) const {
184 s.value(nullptr);
187 void StructuredData::Generic::Serialize(json::OStream &s) const {
188 s.value(llvm::formatv("{0:X}", m_object));
191 void StructuredData::Float::GetDescription(lldb_private::Stream &s) const {
192 s.Printf("%f", m_value);
195 void StructuredData::Boolean::GetDescription(lldb_private::Stream &s) const {
196 s.Printf(m_value ? "True" : "False");
199 void StructuredData::String::GetDescription(lldb_private::Stream &s) const {
200 s.Printf("%s", m_value.empty() ? "\"\"" : m_value.c_str());
203 void StructuredData::Array::GetDescription(lldb_private::Stream &s) const {
204 size_t index = 0;
205 size_t indentation_level = s.GetIndentLevel();
206 for (const auto &item_sp : m_items) {
207 // Sanitize.
208 if (!item_sp)
209 continue;
211 // Reset original indentation level.
212 s.SetIndentLevel(indentation_level);
213 s.Indent();
215 // Print key
216 s.Printf("[%zu]:", index++);
218 // Return to new line and increase indentation if value is record type.
219 // Otherwise add spacing.
220 bool should_indent = IsRecordType(item_sp);
221 if (should_indent) {
222 s.EOL();
223 s.IndentMore();
224 } else {
225 s.PutChar(' ');
228 // Print value and new line if now last pair.
229 item_sp->GetDescription(s);
230 if (item_sp != *(--m_items.end()))
231 s.EOL();
233 // Reset indentation level if it was incremented previously.
234 if (should_indent)
235 s.IndentLess();
239 void StructuredData::Dictionary::GetDescription(lldb_private::Stream &s) const {
240 size_t indentation_level = s.GetIndentLevel();
242 // To ensure the output format is always stable, we sort the dictionary by key
243 // first.
244 using Entry = std::pair<llvm::StringRef, ObjectSP>;
245 std::vector<Entry> sorted_entries;
246 for (const auto &pair : m_dict)
247 sorted_entries.push_back({pair.first(), pair.second});
249 llvm::sort(sorted_entries);
251 for (auto iter = sorted_entries.begin(); iter != sorted_entries.end();
252 iter++) {
253 // Sanitize.
254 if (iter->first.empty() || !iter->second)
255 continue;
257 // Reset original indentation level.
258 s.SetIndentLevel(indentation_level);
259 s.Indent();
261 // Print key.
262 s.Format("{0}:", iter->first);
264 // Return to new line and increase indentation if value is record type.
265 // Otherwise add spacing.
266 bool should_indent = IsRecordType(iter->second);
267 if (should_indent) {
268 s.EOL();
269 s.IndentMore();
270 } else {
271 s.PutChar(' ');
274 // Print value and new line if now last pair.
275 iter->second->GetDescription(s);
276 if (std::next(iter) != sorted_entries.end())
277 s.EOL();
279 // Reset indentation level if it was incremented previously.
280 if (should_indent)
281 s.IndentLess();
285 void StructuredData::Null::GetDescription(lldb_private::Stream &s) const {
286 s.Printf("NULL");
289 void StructuredData::Generic::GetDescription(lldb_private::Stream &s) const {
290 s.Printf("%p", m_object);