diff options
Diffstat (limited to 'src/google/protobuf/compiler/javamicro/javamicro_message.cc')
| -rw-r--r-- | src/google/protobuf/compiler/javamicro/javamicro_message.cc | 474 |
1 files changed, 0 insertions, 474 deletions
diff --git a/src/google/protobuf/compiler/javamicro/javamicro_message.cc b/src/google/protobuf/compiler/javamicro/javamicro_message.cc deleted file mode 100644 index 7fc6c3d..0000000 --- a/src/google/protobuf/compiler/javamicro/javamicro_message.cc +++ /dev/null @@ -1,474 +0,0 @@ -// Protocol Buffers - Google's data interchange format -// Copyright 2008 Google Inc. All rights reserved. -// http://code.google.com/p/protobuf/ -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following disclaimer -// in the documentation and/or other materials provided with the -// distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived from -// this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -// Author: kenton@google.com (Kenton Varda) -// Based on original Protocol Buffers design by -// Sanjay Ghemawat, Jeff Dean, and others. - -#include <algorithm> -#include <google/protobuf/stubs/hash.h> -#include <google/protobuf/compiler/javamicro/javamicro_message.h> -#include <google/protobuf/compiler/javamicro/javamicro_enum.h> -#include <google/protobuf/compiler/javamicro/javamicro_helpers.h> -#include <google/protobuf/stubs/strutil.h> -#include <google/protobuf/io/printer.h> -#include <google/protobuf/io/coded_stream.h> -#include <google/protobuf/wire_format.h> -#include <google/protobuf/descriptor.pb.h> - -namespace google { -namespace protobuf { -namespace compiler { -namespace javamicro { - -using internal::WireFormat; -using internal::WireFormatLite; - -namespace { - -void PrintFieldComment(io::Printer* printer, const FieldDescriptor* field) { - // Print the field's proto-syntax definition as a comment. We don't want to - // print group bodies so we cut off after the first line. - string def = field->DebugString(); - printer->Print("// $def$\n", - "def", def.substr(0, def.find_first_of('\n'))); -} - -struct FieldOrderingByNumber { - inline bool operator()(const FieldDescriptor* a, - const FieldDescriptor* b) const { - return a->number() < b->number(); - } -}; - -// Sort the fields of the given Descriptor by number into a new[]'d array -// and return it. -const FieldDescriptor** SortFieldsByNumber(const Descriptor* descriptor) { - const FieldDescriptor** fields = - new const FieldDescriptor*[descriptor->field_count()]; - for (int i = 0; i < descriptor->field_count(); i++) { - fields[i] = descriptor->field(i); - } - sort(fields, fields + descriptor->field_count(), - FieldOrderingByNumber()); - return fields; -} - -// Get an identifier that uniquely identifies this type within the file. -// This is used to declare static variables related to this type at the -// outermost file scope. -string UniqueFileScopeIdentifier(const Descriptor* descriptor) { - return "static_" + StringReplace(descriptor->full_name(), ".", "_", true); -} - -// Returns true if the message type has any required fields. If it doesn't, -// we can optimize out calls to its isInitialized() method. -// -// already_seen is used to avoid checking the same type multiple times -// (and also to protect against recursion). -static bool HasRequiredFields( - const Descriptor* type, - hash_set<const Descriptor*>* already_seen) { - if (already_seen->count(type) > 0) { - // The type is already in cache. This means that either: - // a. The type has no required fields. - // b. We are in the midst of checking if the type has required fields, - // somewhere up the stack. In this case, we know that if the type - // has any required fields, they'll be found when we return to it, - // and the whole call to HasRequiredFields() will return true. - // Therefore, we don't have to check if this type has required fields - // here. - return false; - } - already_seen->insert(type); - - // If the type has extensions, an extension with message type could contain - // required fields, so we have to be conservative and assume such an - // extension exists. - if (type->extension_range_count() > 0) return true; - - for (int i = 0; i < type->field_count(); i++) { - const FieldDescriptor* field = type->field(i); - if (field->is_required()) { - return true; - } - if (field->cpp_type() == FieldDescriptor::CPPTYPE_MESSAGE) { - if (HasRequiredFields(field->message_type(), already_seen)) { - return true; - } - } - } - - return false; -} - -static bool HasRequiredFields(const Descriptor* type) { - hash_set<const Descriptor*> already_seen; - return HasRequiredFields(type, &already_seen); -} - -} // namespace - -// =================================================================== - -MessageGenerator::MessageGenerator(const Descriptor* descriptor, const Params& params) - : params_(params), - descriptor_(descriptor), - field_generators_(descriptor, params) { -} - -MessageGenerator::~MessageGenerator() {} - -void MessageGenerator::GenerateStaticVariables(io::Printer* printer) { - // Generate static members for all nested types. - for (int i = 0; i < descriptor_->nested_type_count(); i++) { - // TODO(kenton): Reuse MessageGenerator objects? - MessageGenerator(descriptor_->nested_type(i), params_) - .GenerateStaticVariables(printer); - } -} - -void MessageGenerator::GenerateStaticVariableInitializers( - io::Printer* printer) { - // Generate static member initializers for all nested types. - for (int i = 0; i < descriptor_->nested_type_count(); i++) { - // TODO(kenton): Reuse MessageGenerator objects? - MessageGenerator(descriptor_->nested_type(i), params_) - .GenerateStaticVariableInitializers(printer); - } - - if (descriptor_->extension_count() != 0) { - GOOGLE_LOG(FATAL) << "Extensions not supported in MICRO_RUNTIME\n"; - } -} - -void MessageGenerator::Generate(io::Printer* printer) { - bool is_own_file = - params_.java_multiple_files() || ((descriptor_->containing_type() == NULL) - && !params_.has_java_outer_classname(descriptor_->file()->name())); - -#if 0 - GOOGLE_LOG(INFO) << "is_own_file=" << is_own_file; - GOOGLE_LOG(INFO) << "containing_type()=" << ((descriptor_->containing_type() == NULL) ? "NULL" : "not null"); - GOOGLE_LOG(INFO) << "java_multiple_files()=" << params_.java_multiple_files(); - GOOGLE_LOG(INFO) << "has_java_outer_classname()=" << params_.has_java_outer_classname(file_->name()); -#endif - - if ((descriptor_->extension_count() != 0) - || (descriptor_->extension_range_count() != 0)) { - GOOGLE_LOG(FATAL) << "Extensions not supported in MICRO_RUNTIME\n"; - } - - printer->Print( - "public $modifiers$ final class $classname$ extends\n" - " com.google.protobuf.micro.MessageMicro {\n", - "modifiers", is_own_file ? "" : "static", - "classname", descriptor_->name()); - printer->Indent(); - printer->Print( - "public $classname$() {}\n" - "\n", - "classname", descriptor_->name()); - - // Nested types and extensions - for (int i = 0; i < descriptor_->enum_type_count(); i++) { - EnumGenerator(descriptor_->enum_type(i), params_).Generate(printer); - } - - for (int i = 0; i < descriptor_->nested_type_count(); i++) { - MessageGenerator(descriptor_->nested_type(i), params_).Generate(printer); - } - - // Fields - for (int i = 0; i < descriptor_->field_count(); i++) { - PrintFieldComment(printer, descriptor_->field(i)); - printer->Print("public static final int $constant_name$ = $number$;\n", - "constant_name", FieldConstantName(descriptor_->field(i)), - "number", SimpleItoa(descriptor_->field(i)->number())); - field_generators_.get(descriptor_->field(i)).GenerateMembers(printer); - printer->Print("\n"); - } - - GenerateClear(printer); - GenerateIsInitialized(printer); - GenerateMessageSerializationMethods(printer); - GenerateMergeFromMethods(printer); - GenerateParseFromMethods(printer); - - printer->Outdent(); - printer->Print("}\n\n"); -} - -// =================================================================== - -void MessageGenerator:: -GenerateMessageSerializationMethods(io::Printer* printer) { - scoped_array<const FieldDescriptor*> sorted_fields( - SortFieldsByNumber(descriptor_)); - - if (descriptor_->extension_range_count() != 0) { - GOOGLE_LOG(FATAL) << "Extensions not supported in MICRO_RUNTIME\n"; - } - - printer->Print( - "public void writeTo(com.google.protobuf.micro.CodedOutputStreamMicro output)\n" - " throws java.io.IOException {\n"); - printer->Indent(); - - // Output the fields in sorted order - for (int i = 0; i < descriptor_->field_count(); i++) { - GenerateSerializeOneField(printer, sorted_fields[i]); - } - - printer->Outdent(); - printer->Print( - "}\n" - "\n" - "private int cachedSize = -1;\n" - "public int getCachedSize() {\n" - " if (cachedSize < 0) {\n" - " // getSerializedSize sets cachedSize\n" - " getSerializedSize();\n" - " }\n" - " return cachedSize;\n" - "}\n" - "\n" - "public int getSerializedSize() {\n" - " int size = 0;\n"); - printer->Indent(); - - for (int i = 0; i < descriptor_->field_count(); i++) { - field_generators_.get(sorted_fields[i]).GenerateSerializedSizeCode(printer); - } - - printer->Outdent(); - printer->Print( - " cachedSize = size;\n" - " return size;\n" - "}\n" - "\n"); -} - -void MessageGenerator::GenerateMergeFromMethods(io::Printer* printer) { - scoped_array<const FieldDescriptor*> sorted_fields( - SortFieldsByNumber(descriptor_)); - - if (params_.java_use_vector()) { - printer->Print( - "public com.google.protobuf.micro.MessageMicro mergeFrom(\n" - " com.google.protobuf.micro.CodedInputStreamMicro input)\n" - " throws java.io.IOException {\n", - "classname", descriptor_->name()); - } else { - printer->Print( - "public $classname$ mergeFrom(\n" - " com.google.protobuf.micro.CodedInputStreamMicro input)\n" - " throws java.io.IOException {\n", - "classname", descriptor_->name()); - } - printer->Indent(); - - printer->Print( - "while (true) {\n"); - printer->Indent(); - - printer->Print( - "int tag = input.readTag();\n" - "switch (tag) {\n"); - printer->Indent(); - - printer->Print( - "case 0:\n" // zero signals EOF / limit reached - " return this;\n" - "default: {\n" - " if (!parseUnknownField(input, tag)) {\n" - " return this;\n" // it's an endgroup tag - " }\n" - " break;\n" - "}\n"); - - for (int i = 0; i < descriptor_->field_count(); i++) { - const FieldDescriptor* field = sorted_fields[i]; - uint32 tag = WireFormatLite::MakeTag(field->number(), - WireFormat::WireTypeForField(field)); - - printer->Print( - "case $tag$: {\n", - "tag", SimpleItoa(tag)); - printer->Indent(); - - field_generators_.get(field).GenerateParsingCode(printer); - - printer->Outdent(); - printer->Print( - " break;\n" - "}\n"); - } - - printer->Outdent(); - printer->Outdent(); - printer->Outdent(); - printer->Print( - " }\n" // switch (tag) - " }\n" // while (true) - "}\n" - "\n"); -} - -void MessageGenerator:: -GenerateParseFromMethods(io::Printer* printer) { - bool is_own_file = - descriptor_->containing_type() == NULL; - - // Note: These are separate from GenerateMessageSerializationMethods() - // because they need to be generated even for messages that are optimized - // for code size. - printer->Print( - "public $static$ $classname$ parseFrom(byte[] data)\n" - " throws com.google.protobuf.micro.InvalidProtocolBufferMicroException {\n" - " return ($classname$) (new $classname$().mergeFrom(data));\n" - "}\n" - "\n" - "public $static$ $classname$ parseFrom(\n" - " com.google.protobuf.micro.CodedInputStreamMicro input)\n" - " throws java.io.IOException {\n" - " return ($classname$) (new $classname$().mergeFrom(input));\n" - "}\n" - "\n", - "static", (is_own_file ? "static" : ""), - "classname", descriptor_->name()); -} - -void MessageGenerator::GenerateSerializeOneField( - io::Printer* printer, const FieldDescriptor* field) { - field_generators_.get(field).GenerateSerializationCode(printer); -} - -void MessageGenerator::GenerateClear(io::Printer* printer) { - printer->Print( - "public final $classname$ clear() {\n", - "classname", descriptor_->name()); - printer->Indent(); - - // Call clear for all of the fields. - for (int i = 0; i < descriptor_->field_count(); i++) { - const FieldDescriptor* field = descriptor_->field(i); - - printer->Print( - "clear$name$();\n", - "name", UnderscoresToCapitalizedCamelCase(field)); - } - - printer->Outdent(); - printer->Print( - " cachedSize = -1;\n" - " return this;\n" - "}\n" - "\n"); -} - - -void MessageGenerator::GenerateIsInitialized(io::Printer* printer) { - printer->Print( - "public final boolean isInitialized() {\n"); - printer->Indent(); - - // Check that all required fields in this message are set. - // TODO(kenton): We can optimize this when we switch to putting all the - // "has" fields into a single bitfield. - for (int i = 0; i < descriptor_->field_count(); i++) { - const FieldDescriptor* field = descriptor_->field(i); - - if (field->is_required()) { - printer->Print( - "if (!has$name$) return false;\n", - "name", UnderscoresToCapitalizedCamelCase(field)); - } - } - - // Now check that all embedded messages are initialized. - for (int i = 0; i < descriptor_->field_count(); i++) { - const FieldDescriptor* field = descriptor_->field(i); - if (field->cpp_type() == FieldDescriptor::CPPTYPE_MESSAGE && - HasRequiredFields(field->message_type())) { - switch (field->label()) { - case FieldDescriptor::LABEL_REQUIRED: - printer->Print( - "if (!get$name$().isInitialized()) return false;\n", - "type", ClassName(params_, field->message_type()), - "name", UnderscoresToCapitalizedCamelCase(field)); - break; - case FieldDescriptor::LABEL_OPTIONAL: - printer->Print( - "if (has$name$()) {\n" - " if (!get$name$().isInitialized()) return false;\n" - "}\n", - "type", ClassName(params_, field->message_type()), - "name", UnderscoresToCapitalizedCamelCase(field)); - break; - case FieldDescriptor::LABEL_REPEATED: - if (params_.java_use_vector()) { - printer->Print( - "for (int i = 0; i < get$name$List().size(); i++) {\n" - " if (get$name$(i).isInitialized()) return false;\n" - "}\n", - "type", ClassName(params_, field->message_type()), - "name", UnderscoresToCapitalizedCamelCase(field)); - } else { - printer->Print( - "for ($type$ element : get$name$List()) {\n" - " if (!element.isInitialized()) return false;\n" - "}\n", - "type", ClassName(params_, field->message_type()), - "name", UnderscoresToCapitalizedCamelCase(field)); - } - break; - } - } - } - - if (descriptor_->extension_range_count() > 0) { - printer->Print( - "if (!extensionsAreInitialized()) return false;\n"); - } - - printer->Outdent(); - printer->Print( - " return true;\n" - "}\n" - "\n"); -} - -// =================================================================== - -} // namespace javamicro -} // namespace compiler -} // namespace protobuf -} // namespace google |