/thirdparty/breakpad/third_party/protobuf/protobuf/src/google/protobuf/compiler/cpp/cpp_message_field.cc

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 30
 31// Author: kenton@google.com (Kenton Varda)
 32//  Based on original Protocol Buffers design by
 33//  Sanjay Ghemawat, Jeff Dean, and others.
 34
 35#include <google/protobuf/compiler/cpp/cpp_message_field.h>
 36#include <google/protobuf/compiler/cpp/cpp_helpers.h>
 37#include <google/protobuf/io/printer.h>
 38#include <google/protobuf/stubs/strutil.h>
 39
 40namespace google {
 41namespace protobuf {
 42namespace compiler {
 43namespace cpp {
 44
 45namespace {
 46
 47void SetMessageVariables(const FieldDescriptor* descriptor,
 48                         map<string, string>* variables) {
 49  SetCommonFieldVariables(descriptor, variables);
 50  (*variables)["type"] = FieldMessageTypeName(descriptor);
 51  (*variables)["stream_writer"] = (*variables)["declared_type"] +
 52      (HasFastArraySerialization(descriptor->message_type()->file()) ?
 53       "MaybeToArray" :
 54       "");
 55}
 56
 57}  // namespace
 58
 59// ===================================================================
 60
 61MessageFieldGenerator::
 62MessageFieldGenerator(const FieldDescriptor* descriptor)
 63  : descriptor_(descriptor) {
 64  SetMessageVariables(descriptor, &variables_);
 65}
 66
 67MessageFieldGenerator::~MessageFieldGenerator() {}
 68
 69void MessageFieldGenerator::
 70GeneratePrivateMembers(io::Printer* printer) const {
 71  printer->Print(variables_, "$type$* $name$_;\n");
 72}
 73
 74void MessageFieldGenerator::
 75GenerateAccessorDeclarations(io::Printer* printer) const {
 76  printer->Print(variables_,
 77    "inline const $type$& $name$() const$deprecation$;\n"
 78    "inline $type$* mutable_$name$()$deprecation$;\n"
 79    "inline $type$* release_$name$()$deprecation$;\n");
 80}
 81
 82void MessageFieldGenerator::
 83GenerateInlineAccessorDefinitions(io::Printer* printer) const {
 84  printer->Print(variables_,
 85    "inline const $type$& $classname$::$name$() const {\n"
 86    "  return $name$_ != NULL ? *$name$_ : *default_instance_->$name$_;\n"
 87    "}\n"
 88    "inline $type$* $classname$::mutable_$name$() {\n"
 89    "  set_has_$name$();\n"
 90    "  if ($name$_ == NULL) $name$_ = new $type$;\n"
 91    "  return $name$_;\n"
 92    "}\n"
 93    "inline $type$* $classname$::release_$name$() {\n"
 94    "  clear_has_$name$();\n"
 95    "  $type$* temp = $name$_;\n"
 96    "  $name$_ = NULL;\n"
 97    "  return temp;\n"
 98    "}\n");
 99}
100
101void MessageFieldGenerator::
102GenerateClearingCode(io::Printer* printer) const {
103  printer->Print(variables_,
104    "if ($name$_ != NULL) $name$_->$type$::Clear();\n");
105}
106
107void MessageFieldGenerator::
108GenerateMergingCode(io::Printer* printer) const {
109  printer->Print(variables_,
110    "mutable_$name$()->$type$::MergeFrom(from.$name$());\n");
111}
112
113void MessageFieldGenerator::
114GenerateSwappingCode(io::Printer* printer) const {
115  printer->Print(variables_, "std::swap($name$_, other->$name$_);\n");
116}
117
118void MessageFieldGenerator::
119GenerateConstructorCode(io::Printer* printer) const {
120  printer->Print(variables_, "$name$_ = NULL;\n");
121}
122
123void MessageFieldGenerator::
124GenerateMergeFromCodedStream(io::Printer* printer) const {
125  if (descriptor_->type() == FieldDescriptor::TYPE_MESSAGE) {
126    printer->Print(variables_,
127      "DO_(::google::protobuf::internal::WireFormatLite::ReadMessageNoVirtual(\n"
128      "     input, mutable_$name$()));\n");
129  } else {
130    printer->Print(variables_,
131      "DO_(::google::protobuf::internal::WireFormatLite::ReadGroupNoVirtual(\n"
132      "      $number$, input, mutable_$name$()));\n");
133  }
134}
135
136void MessageFieldGenerator::
137GenerateSerializeWithCachedSizes(io::Printer* printer) const {
138  printer->Print(variables_,
139    "::google::protobuf::internal::WireFormatLite::Write$stream_writer$(\n"
140    "  $number$, this->$name$(), output);\n");
141}
142
143void MessageFieldGenerator::
144GenerateSerializeWithCachedSizesToArray(io::Printer* printer) const {
145  printer->Print(variables_,
146    "target = ::google::protobuf::internal::WireFormatLite::\n"
147    "  Write$declared_type$NoVirtualToArray(\n"
148    "    $number$, this->$name$(), target);\n");
149}
150
151void MessageFieldGenerator::
152GenerateByteSize(io::Printer* printer) const {
153  printer->Print(variables_,
154    "total_size += $tag_size$ +\n"
155    "  ::google::protobuf::internal::WireFormatLite::$declared_type$SizeNoVirtual(\n"
156    "    this->$name$());\n");
157}
158
159// ===================================================================
160
161RepeatedMessageFieldGenerator::
162RepeatedMessageFieldGenerator(const FieldDescriptor* descriptor)
163  : descriptor_(descriptor) {
164  SetMessageVariables(descriptor, &variables_);
165}
166
167RepeatedMessageFieldGenerator::~RepeatedMessageFieldGenerator() {}
168
169void RepeatedMessageFieldGenerator::
170GeneratePrivateMembers(io::Printer* printer) const {
171  printer->Print(variables_,
172    "::google::protobuf::RepeatedPtrField< $type$ > $name$_;\n");
173}
174
175void RepeatedMessageFieldGenerator::
176GenerateAccessorDeclarations(io::Printer* printer) const {
177  printer->Print(variables_,
178    "inline const $type$& $name$(int index) const$deprecation$;\n"
179    "inline $type$* mutable_$name$(int index)$deprecation$;\n"
180    "inline $type$* add_$name$()$deprecation$;\n");
181  printer->Print(variables_,
182    "inline const ::google::protobuf::RepeatedPtrField< $type$ >&\n"
183    "    $name$() const$deprecation$;\n"
184    "inline ::google::protobuf::RepeatedPtrField< $type$ >*\n"
185    "    mutable_$name$()$deprecation$;\n");
186}
187
188void RepeatedMessageFieldGenerator::
189GenerateInlineAccessorDefinitions(io::Printer* printer) const {
190  printer->Print(variables_,
191    "inline const $type$& $classname$::$name$(int index) const {\n"
192    "  return $name$_.Get(index);\n"
193    "}\n"
194    "inline $type$* $classname$::mutable_$name$(int index) {\n"
195    "  return $name$_.Mutable(index);\n"
196    "}\n"
197    "inline $type$* $classname$::add_$name$() {\n"
198    "  return $name$_.Add();\n"
199    "}\n");
200  printer->Print(variables_,
201    "inline const ::google::protobuf::RepeatedPtrField< $type$ >&\n"
202    "$classname$::$name$() const {\n"
203    "  return $name$_;\n"
204    "}\n"
205    "inline ::google::protobuf::RepeatedPtrField< $type$ >*\n"
206    "$classname$::mutable_$name$() {\n"
207    "  return &$name$_;\n"
208    "}\n");
209}
210
211void RepeatedMessageFieldGenerator::
212GenerateClearingCode(io::Printer* printer) const {
213  printer->Print(variables_, "$name$_.Clear();\n");
214}
215
216void RepeatedMessageFieldGenerator::
217GenerateMergingCode(io::Printer* printer) const {
218  printer->Print(variables_, "$name$_.MergeFrom(from.$name$_);\n");
219}
220
221void RepeatedMessageFieldGenerator::
222GenerateSwappingCode(io::Printer* printer) const {
223  printer->Print(variables_, "$name$_.Swap(&other->$name$_);\n");
224}
225
226void RepeatedMessageFieldGenerator::
227GenerateConstructorCode(io::Printer* printer) const {
228  // Not needed for repeated fields.
229}
230
231void RepeatedMessageFieldGenerator::
232GenerateMergeFromCodedStream(io::Printer* printer) const {
233  if (descriptor_->type() == FieldDescriptor::TYPE_MESSAGE) {
234    printer->Print(variables_,
235      "DO_(::google::protobuf::internal::WireFormatLite::ReadMessageNoVirtual(\n"
236      "      input, add_$name$()));\n");
237  } else {
238    printer->Print(variables_,
239      "DO_(::google::protobuf::internal::WireFormatLite::ReadGroupNoVirtual(\n"
240      "      $number$, input, add_$name$()));\n");
241  }
242}
243
244void RepeatedMessageFieldGenerator::
245GenerateSerializeWithCachedSizes(io::Printer* printer) const {
246  printer->Print(variables_,
247    "for (int i = 0; i < this->$name$_size(); i++) {\n"
248    "  ::google::protobuf::internal::WireFormatLite::Write$stream_writer$(\n"
249    "    $number$, this->$name$(i), output);\n"
250    "}\n");
251}
252
253void RepeatedMessageFieldGenerator::
254GenerateSerializeWithCachedSizesToArray(io::Printer* printer) const {
255  printer->Print(variables_,
256    "for (int i = 0; i < this->$name$_size(); i++) {\n"
257    "  target = ::google::protobuf::internal::WireFormatLite::\n"
258    "    Write$declared_type$NoVirtualToArray(\n"
259    "      $number$, this->$name$(i), target);\n"
260    "}\n");
261}
262
263void RepeatedMessageFieldGenerator::
264GenerateByteSize(io::Printer* printer) const {
265  printer->Print(variables_,
266    "total_size += $tag_size$ * this->$name$_size();\n"
267    "for (int i = 0; i < this->$name$_size(); i++) {\n"
268    "  total_size +=\n"
269    "    ::google::protobuf::internal::WireFormatLite::$declared_type$SizeNoVirtual(\n"
270    "      this->$name$(i));\n"
271    "}\n");
272}
273
274}  // namespace cpp
275}  // namespace compiler
276}  // namespace protobuf
277}  // namespace google