diff options
Diffstat (limited to 'src/google/protobuf/compiler/php/php_generator.cc')
| -rw-r--r-- | src/google/protobuf/compiler/php/php_generator.cc | 786 |
1 files changed, 547 insertions, 239 deletions
diff --git a/src/google/protobuf/compiler/php/php_generator.cc b/src/google/protobuf/compiler/php/php_generator.cc index 75ddb405..ec9a2365 100644 --- a/src/google/protobuf/compiler/php/php_generator.cc +++ b/src/google/protobuf/compiler/php/php_generator.cc @@ -43,6 +43,11 @@ using google::protobuf::internal::scoped_ptr; const std::string kDescriptorFile = "google/protobuf/descriptor.proto"; +const std::string kEmptyFile = "google/protobuf/empty.proto"; +const std::string kEmptyMetadataFile = "GPBMetadata/Google/Protobuf/GPBEmpty.php"; +const std::string kDescriptorMetadataFile = + "GPBMetadata/Google/Protobuf/Internal/Descriptor.php"; +const std::string kDescriptorDirName = "Google/Protobuf/Internal"; const std::string kDescriptorPackageName = "Google\\Protobuf\\Internal"; namespace google { @@ -52,38 +57,57 @@ namespace php { // Forward decls. std::string PhpName(const std::string& full_name, bool is_descriptor); -std::string DefaultForField(google::protobuf::FieldDescriptor* field); +std::string DefaultForField(FieldDescriptor* field); std::string IntToString(int32 value); -std::string GeneratedFileName(const std::string& proto_file, - bool is_descriptor); -std::string LabelForField(google::protobuf::FieldDescriptor* field); -std::string TypeName(google::protobuf::FieldDescriptor* field); +std::string FilenameToClassname(const string& filename); +std::string GeneratedMetadataFileName(const std::string& proto_file, + bool is_descriptor); +std::string LabelForField(FieldDescriptor* field); +std::string TypeName(FieldDescriptor* field); std::string UnderscoresToCamelCase(const string& name, bool cap_first_letter); std::string EscapeDollor(const string& to_escape); std::string BinaryToHex(const string& binary); -void GenerateMessage(const string& name_prefix, - const google::protobuf::Descriptor* message, - bool is_descriptor, - google::protobuf::io::Printer* printer); -void GenerateEnum(const google::protobuf::EnumDescriptor* en, - google::protobuf::io::Printer* printer); -void Indent(google::protobuf::io::Printer* printer); -void Outdent(google::protobuf::io::Printer* printer); - -std::string MessageName(const google::protobuf::Descriptor* message, - bool is_descriptor) { +void Indent(io::Printer* printer); +void Outdent(io::Printer* printer); +void GenerateMessageDocComment(io::Printer* printer, const Descriptor* message); +void GenerateFieldDocComment(io::Printer* printer, + const FieldDescriptor* field); +void GenerateEnumDocComment(io::Printer* printer, const EnumDescriptor* enum_); +void GenerateEnumValueDocComment(io::Printer* printer, + const EnumValueDescriptor* value); + +std::string RenameEmpty(const std::string& name) { + if (name == "Empty") { + return "GPBEmpty"; + } else { + return name; + } +} + +std::string MessagePrefix(const Descriptor* message) { + // Empty cannot be php class name. + if (message->name() == "Empty" && + message->file()->package() == "google.protobuf") { + return "GPB"; + } else { + return ""; + } +} + +std::string MessageName(const Descriptor* message, bool is_descriptor) { string message_name = message->name(); - const google::protobuf::Descriptor* descriptor = message->containing_type(); + const Descriptor* descriptor = message->containing_type(); while (descriptor != NULL) { message_name = descriptor->name() + '_' + message_name; descriptor = descriptor->containing_type(); } + message_name = MessagePrefix(message) + message_name; + return PhpName(message->file()->package(), is_descriptor) + '\\' + message_name; } -std::string MessageFullName(const google::protobuf::Descriptor* message, - bool is_descriptor) { +std::string MessageFullName(const Descriptor* message, bool is_descriptor) { if (is_descriptor) { return StringReplace(message->full_name(), "google.protobuf", @@ -93,8 +117,7 @@ std::string MessageFullName(const google::protobuf::Descriptor* message, } } -std::string EnumFullName(const google::protobuf::EnumDescriptor* envm, - bool is_descriptor) { +std::string EnumFullName(const EnumDescriptor* envm, bool is_descriptor) { if (is_descriptor) { return StringReplace(envm->full_name(), "google.protobuf", @@ -104,9 +127,9 @@ std::string EnumFullName(const google::protobuf::EnumDescriptor* envm, } } -std::string EnumClassName(const google::protobuf::EnumDescriptor* envm) { +std::string EnumClassName(const EnumDescriptor* envm) { string enum_class_name = envm->name(); - const google::protobuf::Descriptor* descriptor = envm->containing_type(); + const Descriptor* descriptor = envm->containing_type(); while (descriptor != NULL) { enum_class_name = descriptor->name() + '_' + enum_class_name; descriptor = descriptor->containing_type(); @@ -114,8 +137,7 @@ std::string EnumClassName(const google::protobuf::EnumDescriptor* envm) { return enum_class_name; } -std::string EnumName(const google::protobuf::EnumDescriptor* envm, - bool is_descriptor) { +std::string EnumName(const EnumDescriptor* envm, bool is_descriptor) { string enum_name = EnumClassName(envm); return PhpName(envm->file()->package(), is_descriptor) + '\\' + enum_name; } @@ -142,7 +164,7 @@ std::string PhpName(const std::string& full_name, bool is_descriptor) { return result; } -std::string DefaultForField(const google::protobuf::FieldDescriptor* field) { +std::string DefaultForField(const FieldDescriptor* field) { switch (field->type()) { case FieldDescriptor::TYPE_INT32: case FieldDescriptor::TYPE_INT64: @@ -166,14 +188,63 @@ std::string DefaultForField(const google::protobuf::FieldDescriptor* field) { } } -std::string GeneratedFileName(const std::string& proto_file, - bool is_descriptor) { +std::string GeneratedMetadataFileName(const std::string& proto_file, + bool is_descriptor) { + int start_index = 0; + int first_index = proto_file.find_first_of("/", start_index); + std::string result = "GPBMetadata/"; + + if (proto_file == kEmptyFile) { + return kEmptyMetadataFile; + } if (is_descriptor) { - return "descriptor_internal.pb.php"; + return kDescriptorMetadataFile; + } + + // Append directory name. + std::string file_no_suffix; + int lastindex = proto_file.find_last_of("."); + if (proto_file == kEmptyFile) { + return kEmptyMetadataFile; } else { - int lastindex = proto_file.find_last_of("."); - return proto_file.substr(0, lastindex) + ".pb.php"; + file_no_suffix = proto_file.substr(0, lastindex); + } + + while (first_index != string::npos) { + result += UnderscoresToCamelCase( + file_no_suffix.substr(start_index, first_index - start_index), true); + result += "/"; + start_index = first_index + 1; + first_index = file_no_suffix.find_first_of("/", start_index); + } + + // Append file name. + result += RenameEmpty(UnderscoresToCamelCase( + file_no_suffix.substr(start_index, first_index - start_index), true)); + + return result += ".php"; +} + +std::string GeneratedMessageFileName(const Descriptor* message, + bool is_descriptor) { + std::string result = MessageName(message, is_descriptor); + for (int i = 0; i < result.size(); i++) { + if (result[i] == '\\') { + result[i] = '/'; + } } + return result + ".php"; +} + +std::string GeneratedEnumFileName(const EnumDescriptor* en, + bool is_descriptor) { + std::string result = EnumName(en, is_descriptor); + for (int i = 0; i < result.size(); i++) { + if (result[i] == '\\') { + result[i] = '/'; + } + } + return result + ".php"; } std::string IntToString(int32 value) { @@ -182,7 +253,7 @@ std::string IntToString(int32 value) { return os.str(); } -std::string LabelForField(const google::protobuf::FieldDescriptor* field) { +std::string LabelForField(const FieldDescriptor* field) { switch (field->label()) { case FieldDescriptor::LABEL_OPTIONAL: return "optional"; case FieldDescriptor::LABEL_REQUIRED: return "required"; @@ -191,7 +262,7 @@ std::string LabelForField(const google::protobuf::FieldDescriptor* field) { } } -std::string TypeName(const google::protobuf::FieldDescriptor* field) { +std::string TypeName(const FieldDescriptor* field) { switch (field->type()) { case FieldDescriptor::TYPE_INT32: return "int32"; case FieldDescriptor::TYPE_INT64: return "int64"; @@ -216,7 +287,7 @@ std::string TypeName(const google::protobuf::FieldDescriptor* field) { } std::string EnumOrMessageSuffix( - const google::protobuf::FieldDescriptor* field, bool is_descriptor) { + const FieldDescriptor* field, bool is_descriptor) { if (field->cpp_type() == FieldDescriptor::CPPTYPE_MESSAGE) { return ", '" + MessageFullName(field->message_type(), is_descriptor) + "'"; } @@ -287,74 +358,77 @@ std::string BinaryToHex(const string& src) { return dest; } -void Indent(google::protobuf::io::Printer* printer) { +void Indent(io::Printer* printer) { printer->Indent(); printer->Indent(); } -void Outdent(google::protobuf::io::Printer* printer) { +void Outdent(io::Printer* printer) { printer->Outdent(); printer->Outdent(); } -void GenerateField(const google::protobuf::FieldDescriptor* field, - google::protobuf::io::Printer* printer, bool is_descriptor) { +void GenerateField(const FieldDescriptor* field, io::Printer* printer, + bool is_descriptor) { if (field->is_repeated()) { + GenerateFieldDocComment(printer, field); printer->Print( - "private $@name@;\n", + "private $^name^;\n", "name", field->name()); } else if (field->containing_oneof()) { // Oneof fields are handled by GenerateOneofField. return; } else { + GenerateFieldDocComment(printer, field); printer->Print( - "private $@name@ = @default@;\n", + "private $^name^ = ^default^;\n", "name", field->name(), "default", DefaultForField(field)); } if (is_descriptor) { printer->Print( - "private $has_@name@ = false;\n", + "private $has_^name^ = false;\n", "name", field->name()); } } -void GenerateOneofField(const google::protobuf::OneofDescriptor* oneof, - google::protobuf::io::Printer* printer) { +void GenerateOneofField(const OneofDescriptor* oneof, io::Printer* printer) { // Oneof property needs to be protected in order to be accessed by parent // class in implementation. printer->Print( - "protected $@name@;\n", + "protected $^name^;\n", "name", oneof->name()); } -void GenerateFieldAccessor(const google::protobuf::FieldDescriptor* field, - bool is_descriptor, - google::protobuf::io::Printer* printer) { +void GenerateFieldAccessor(const FieldDescriptor* field, bool is_descriptor, + io::Printer* printer) { const OneofDescriptor* oneof = field->containing_oneof(); // Generate getter. if (oneof != NULL) { + GenerateFieldDocComment(printer, field); printer->Print( - "public function get@camel_name@()\n" + "public function get^camel_name^()\n" "{\n" - " return $this->readOneof(@number@);\n" + " return $this->readOneof(^number^);\n" "}\n\n", "camel_name", UnderscoresToCamelCase(field->name(), true), "number", IntToString(field->number())); } else { + GenerateFieldDocComment(printer, field); printer->Print( - "public function get@camel_name@()\n" + "public function get^camel_name^()\n" "{\n" - " return $this->@name@;\n" + " return $this->^name^;\n" "}\n\n", "camel_name", UnderscoresToCamelCase(field->name(), true), "name", field->name()); } // Generate setter. + GenerateFieldDocComment(printer, field); printer->Print( - "public function set@camel_name@(@var@)\n" + "public function set^camel_name^(^var^)\n" "{\n", "camel_name", UnderscoresToCamelCase(field->name(), true), "var", (field->is_repeated() || @@ -367,16 +441,17 @@ void GenerateFieldAccessor(const google::protobuf::FieldDescriptor* field, if (field->is_map()) { } else if (field->is_repeated()) { printer->Print( - "GPBUtil::checkRepeatedField($var, GPBType::@type@", + "GPBUtil::checkRepeatedField($var, " + "\\Google\\Protobuf\\Internal\\GPBType::^type^", "type", ToUpper(field->type_name())); if (field->cpp_type() == FieldDescriptor::CPPTYPE_MESSAGE) { printer->Print( - ", \\@class_name@);\n", + ", \\^class_name^);\n", "class_name", MessageName(field->message_type(), is_descriptor) + "::class"); } else if (field->cpp_type() == FieldDescriptor::CPPTYPE_ENUM) { printer->Print( - ", @class_name@);\n", + ", ^class_name^);\n", "class_name", EnumName(field->enum_type(), is_descriptor) + "::class"); } else { @@ -384,37 +459,37 @@ void GenerateFieldAccessor(const google::protobuf::FieldDescriptor* field, } } else if (field->cpp_type() == FieldDescriptor::CPPTYPE_MESSAGE) { printer->Print( - "GPBUtil::checkMessage($var, \\@class_name@::class);\n", + "GPBUtil::checkMessage($var, \\^class_name^::class);\n", "class_name", MessageName(field->message_type(), is_descriptor)); } else if (field->cpp_type() == FieldDescriptor::CPPTYPE_ENUM) { printer->Print( - "GPBUtil::checkEnum($var, \\@class_name@::class);\n", + "GPBUtil::checkEnum($var, \\^class_name^::class);\n", "class_name", EnumName(field->enum_type(), is_descriptor)); } else if (field->cpp_type() == FieldDescriptor::CPPTYPE_STRING) { printer->Print( - "GPBUtil::checkString($var, @utf8@);\n", + "GPBUtil::checkString($var, ^utf8^);\n", "utf8", field->type() == FieldDescriptor::TYPE_STRING ? "True": "False"); } else { printer->Print( - "GPBUtil::check@type@($var);\n", + "GPBUtil::check^type^($var);\n", "type", UnderscoresToCamelCase(field->cpp_type_name(), true)); } if (oneof != NULL) { printer->Print( - "$this->writeOneof(@number@, $var);\n", + "$this->writeOneof(^number^, $var);\n", "number", IntToString(field->number())); } else { printer->Print( - "$this->@name@ = $var;\n", + "$this->^name^ = $var;\n", "name", field->name()); } // Set has bit for proto2 only. if (is_descriptor) { printer->Print( - "$this->has_@field_name@ = true;\n", + "$this->has_^field_name^ = true;\n", "field_name", field->name()); } @@ -426,125 +501,27 @@ void GenerateFieldAccessor(const google::protobuf::FieldDescriptor* field, // Generate has method for proto2 only. if (is_descriptor) { printer->Print( - "public function has@camel_name@()\n" + "public function has^camel_name^()\n" "{\n" - " return $this->has_@field_name@;\n" + " return $this->has_^field_name^;\n" "}\n\n", "camel_name", UnderscoresToCamelCase(field->name(), true), "field_name", field->name()); } } -void GenerateRepeatedFieldDecode( - const google::protobuf::FieldDescriptor* field, - google::protobuf::io::Printer* printer) { - printer->Print( - "if ($input->read@cap_wire_type@($var)) return False;\n" - "$this->get@cap_field_name@() []= $var;\n", - "cap_field_name", UnderscoresToCamelCase(field->name(), true), - "cap_wire_type", UnderscoresToCamelCase(field->type_name(), true)); -} - -void GeneratePrimitiveFieldDecode( - const google::protobuf::FieldDescriptor* field, - google::protobuf::io::Printer* printer) { - printer->Print( - "if ($input->read@cap_wire_type@($var)) return False;\n" - "$this->set@cap_field_name@($var);\n", - "cap_field_name", UnderscoresToCamelCase(field->name(), true), - "cap_wire_type", UnderscoresToCamelCase(field->type_name(), true)); -} - -void GenerateFieldDecode(const google::protobuf::FieldDescriptor* field, - google::protobuf::io::Printer* printer) { - printer->Print( - "case @number@:\n", - "number", IntToString(field->number())); - Indent(printer); - - if (field->is_repeated()) { - GenerateRepeatedFieldDecode(field, printer); - } else { - GeneratePrimitiveFieldDecode(field, printer); - } - - printer->Print( - "break;\n"); - Outdent(printer); -} - -void GenerateMessage(const string& name_prefix, - const google::protobuf::Descriptor* message, - bool is_descriptor, - google::protobuf::io::Printer* printer) { - // Don't generate MapEntry messages -- we use the PHP extension's native - // support for map fields instead. - if (message->options().map_entry()) { - return; - } - - string message_name = name_prefix.empty()? - message->name() : name_prefix + "_" + message->name(); - +void GenerateEnumToPool(const EnumDescriptor* en, io::Printer* printer) { printer->Print( - "class @name@ extends \\Google\\Protobuf\\Internal\\Message\n" - "{\n", - "name", message_name); - Indent(printer); - - // Field and oneof definitions. - for (int i = 0; i < message->field_count(); i++) { - const FieldDescriptor* field = message->field(i); - GenerateField(field, printer, is_descriptor); - } - for (int i = 0; i < message->oneof_decl_count(); i++) { - const OneofDescriptor* oneof = message->oneof_decl(i); - GenerateOneofField(oneof, printer); - } - printer->Print("\n"); - - // Field and oneof accessors. - for (int i = 0; i < message->field_count(); i++) { - const FieldDescriptor* field = message->field(i); - GenerateFieldAccessor(field, is_descriptor, printer); - } - for (int i = 0; i < message->oneof_decl_count(); i++) { - const google::protobuf::OneofDescriptor* oneof = message->oneof_decl(i); - printer->Print( - "public function get@camel_name@()\n" - "{\n" - " return $this->@name@;\n" - "}\n\n", - "camel_name", UnderscoresToCamelCase(oneof->name(), true), "name", - oneof->name()); - } - - Outdent(printer); - printer->Print("}\n\n"); - - // Nested messages and enums. - for (int i = 0; i < message->nested_type_count(); i++) { - GenerateMessage(message_name, message->nested_type(i), is_descriptor, - printer); - } - for (int i = 0; i < message->enum_type_count(); i++) { - GenerateEnum(message->enum_type(i), printer); - } -} - -void GenerateEnumToPool(const google::protobuf::EnumDescriptor* en, - bool is_descriptor, - google::protobuf::io::Printer* printer) { - printer->Print( - "$pool->addEnum('@name@', @class_name@::class)\n", - "name", EnumFullName(en, is_descriptor), + "$pool->addEnum('^name^', " + "\\Google\\Protobuf\\Internal\\^class_name^::class)\n", + "name", EnumFullName(en, true), "class_name", en->name()); Indent(printer); for (int i = 0; i < en->value_count(); i++) { const EnumValueDescriptor* value = en->value(i); printer->Print( - "->value(\"@name@\", @number@)\n", + "->value(\"^name^\", ^number^)\n", "name", value->name(), "number", IntToString(value->number())); } @@ -552,10 +529,8 @@ void GenerateEnumToPool(const google::protobuf::EnumDescriptor* en, Outdent(printer); } -void GenerateMessageToPool(const string& name_prefix, - const google::protobuf::Descriptor* message, - bool is_descriptor, - google::protobuf::io::Printer* printer) { +void GenerateMessageToPool(const string& name_prefix, const Descriptor* message, + io::Printer* printer) { // Don't generate MapEntry messages -- we use the PHP extension's native // support for map fields instead. if (message->options().map_entry()) { @@ -565,8 +540,9 @@ void GenerateMessageToPool(const string& name_prefix, message->name() : name_prefix + "_" + message->name(); printer->Print( - "$pool->addMessage('@message@', @class_name@::class)\n", - "message", MessageFullName(message, is_descriptor), + "$pool->addMessage('^message^', " + "\\Google\\Protobuf\\Internal\\^class_name^::class)\n", + "message", MessageFullName(message, true), "class_name", class_name); Indent(printer); @@ -579,38 +555,40 @@ void GenerateMessageToPool(const string& name_prefix, const FieldDescriptor* val = field->message_type()->FindFieldByName("value"); printer->Print( - "->map('@field@', GPBType::@key@, " - "GPBType::@value@, @number@@other@)\n", + "->map('^field^', \\Google\\Protobuf\\Internal\\GPBType::^key^, " + "\\Google\\Protobuf\\Internal\\GPBType::^value^, ^number^^other^)\n", "field", field->name(), "key", ToUpper(key->type_name()), "value", ToUpper(val->type_name()), "number", SimpleItoa(field->number()), - "other", EnumOrMessageSuffix(val, is_descriptor)); + "other", EnumOrMessageSuffix(val, true)); } else if (!field->containing_oneof()) { printer->Print( - "->@label@('@field@', GPBType::@type@, @number@@other@)\n", + "->^label^('^field^', " + "\\Google\\Protobuf\\Internal\\GPBType::^type^, ^number^^other^)\n", "field", field->name(), "label", LabelForField(field), "type", ToUpper(field->type_name()), "number", SimpleItoa(field->number()), - "other", EnumOrMessageSuffix(field, is_descriptor)); + "other", EnumOrMessageSuffix(field, true)); } } // oneofs. for (int i = 0; i < message->oneof_decl_count(); i++) { const OneofDescriptor* oneof = message->oneof_decl(i); - printer->Print("->oneof(@name@)\n", + printer->Print("->oneof(^name^)\n", "name", oneof->name()); Indent(printer); for (int index = 0; index < oneof->field_count(); index++) { const FieldDescriptor* field = oneof->field(index); printer->Print( - "->value('@field@', GPBType::@type@, @number@@other@)\n", + "->value('^field^', " + "\\Google\\Protobuf\\Internal\\GPBType::^type^, ^number^^other^)\n", "field", field->name(), "type", ToUpper(field->type_name()), "number", SimpleItoa(field->number()), - "other", EnumOrMessageSuffix(field, is_descriptor)); + "other", EnumOrMessageSuffix(field, true)); } printer->Print("->finish()\n"); Outdent(printer); @@ -625,33 +603,48 @@ void GenerateMessageToPool(const string& name_prefix, "\n"); for (int i = 0; i < message->nested_type_count(); i++) { - GenerateMessageToPool(class_name, message->nested_type(i), is_descriptor, - printer); + GenerateMessageToPool(class_name, message->nested_type(i), printer); } for (int i = 0; i < message->enum_type_count(); i++) { - GenerateEnumToPool(message->enum_type(i), is_descriptor, printer); + GenerateEnumToPool(message->enum_type(i), printer); } } -void GenerateAddFileToPool(const google::protobuf::FileDescriptor* file, - bool is_descriptor, - google::protobuf::io::Printer* printer) { - if (is_descriptor) { - printer->Print("$pool = DescriptorPool::getGeneratedPool();\n\n"); +void GenerateAddFileToPool(const FileDescriptor* file, bool is_descriptor, + io::Printer* printer) { + printer->Print( + "public static $is_initialized = false;\n\n" + "public static function initOnce() {\n"); + Indent(printer); + + printer->Print( + "$pool = \\Google\\Protobuf\\Internal\\" + "DescriptorPool::getGeneratedPool();\n\n" + "if (static::$is_initialized == true) {\n" + " return;\n" + "}\n"); + if (is_descriptor) { for (int i = 0; i < file->message_type_count(); i++) { - GenerateMessageToPool("", file->message_type(i), is_descriptor, printer); + GenerateMessageToPool("", file->message_type(i), printer); } for (int i = 0; i < file->enum_type_count(); i++) { - GenerateEnumToPool(file->enum_type(i), is_descriptor, printer); + GenerateEnumToPool(file->enum_type(i), printer); } printer->Print( "$pool->finish();\n"); } else { - // Add messages and enums to descriptor pool. - printer->Print("$pool = DescriptorPool::getGeneratedPool();\n\n"); + for (int i = 0; i < file->dependency_count(); i++) { + const std::string& name = file->dependency(i)->name(); + std::string dependency_filename = + GeneratedMetadataFileName(name, is_descriptor); + printer->Print( + "\\^name^::initOnce();\n", + "name", FilenameToClassname(dependency_filename)); + } + // Add messages and enums to descriptor pool. FileDescriptorSet files; FileDescriptorProto* file_proto = files.add_file(); file->CopyTo(file_proto); @@ -665,7 +658,7 @@ void GenerateAddFileToPool(const google::protobuf::FileDescriptor* file, static const int kBytesPerLine = 30; for (int i = 0; i < files_data.size(); i += kBytesPerLine) { printer->Print( - "\"@data@\"@dot@\n", + "\"^data^\"^dot^\n", "data", BinaryToHex(files_data.substr(i, kBytesPerLine)), "dot", i + kBytesPerLine < files_data.size() ? " ." : ""); } @@ -674,38 +667,20 @@ void GenerateAddFileToPool(const google::protobuf::FileDescriptor* file, printer->Print( "));\n\n"); } - -} - -void GenerateEnum(const google::protobuf::EnumDescriptor* en, - google::protobuf::io::Printer* printer) { printer->Print( - "class @name@\n" - "{\n", - "name", EnumClassName(en)); - Indent(printer); - - for (int i = 0; i < en->value_count(); i++) { - const EnumValueDescriptor* value = en->value(i); - printer->Print("const @name@ = @number@;\n", - "name", value->name(), - "number", IntToString(value->number())); - } + "static::$is_initialized = true;\n"); Outdent(printer); - printer->Print("}\n\n"); + printer->Print("}\n"); } -void GenerateUseDeclaration(bool is_descriptor, - google::protobuf::io::Printer* printer) { +void GenerateUseDeclaration(bool is_descriptor, io::Printer* printer) { if (!is_descriptor) { printer->Print( - "use Google\\Protobuf\\Internal\\DescriptorPool;\n" "use Google\\Protobuf\\Internal\\GPBType;\n" "use Google\\Protobuf\\Internal\\RepeatedField;\n" "use Google\\Protobuf\\Internal\\GPBUtil;\n\n"); } else { printer->Print( - "use Google\\Protobuf\\Internal\\DescriptorPool;\n" "use Google\\Protobuf\\Internal\\GPBType;\n" "use Google\\Protobuf\\Internal\\GPBWire;\n" "use Google\\Protobuf\\Internal\\RepeatedField;\n" @@ -714,42 +689,380 @@ void GenerateUseDeclaration(bool is_descriptor, } } -void GenerateFile(const google::protobuf::FileDescriptor* file, - bool is_descriptor, google::protobuf::io::Printer* printer) { +void GenerateHead(const FileDescriptor* file, io::Printer* printer) { printer->Print( "<?php\n" "# Generated by the protocol buffer compiler. DO NOT EDIT!\n" - "# source: @filename@\n" + "# source: ^filename^\n" "\n", "filename", file->name()); +} + +std::string FilenameToClassname(const string& filename) { + int lastindex = filename.find_last_of("."); + std::string result = filename.substr(0, lastindex); + for (int i = 0; i < result.size(); i++) { + if (result[i] == '/') { + result[i] = '\\'; + } + } + return result; +} + +void GenerateMetadataFile(const FileDescriptor* file, + bool is_descriptor, + GeneratorContext* generator_context) { + std::string filename = GeneratedMetadataFileName(file->name(), is_descriptor); + scoped_ptr<io::ZeroCopyOutputStream> output( + generator_context->Open(filename)); + io::Printer printer(output.get(), '^'); + + GenerateHead(file, &printer); + + std::string fullname = FilenameToClassname(filename); + int lastindex = fullname.find_last_of("\\"); + + printer.Print( + "namespace ^name^;\n\n", + "name", fullname.substr(0, lastindex)); + + if (lastindex != string::npos) { + printer.Print( + "class ^name^\n" + "{\n", + "name", fullname.substr(lastindex + 1)); + } else { + printer.Print( + "class ^name^\n" + "{\n", + "name", fullname); + } + Indent(&printer); + + GenerateAddFileToPool(file, is_descriptor, &printer); + + Outdent(&printer); + printer.Print("}\n\n"); +} + +void GenerateEnumFile(const FileDescriptor* file, const EnumDescriptor* en, + bool is_descriptor, GeneratorContext* generator_context) { + std::string filename = GeneratedEnumFileName(en, is_descriptor); + scoped_ptr<io::ZeroCopyOutputStream> output( + generator_context->Open(filename)); + io::Printer printer(output.get(), '^'); + + GenerateHead(file, &printer); + + std::string fullname = FilenameToClassname(filename); + int lastindex = fullname.find_last_of("\\"); + if (!file->package().empty()) { - printer->Print("namespace @name@;\n\n", - "name", PhpName(file->package(), is_descriptor)); + printer.Print( + "namespace ^name^;\n\n", + "name", fullname.substr(0, lastindex)); + } + + GenerateEnumDocComment(&printer, en); + + if (lastindex != string::npos) { + printer.Print( + "class ^name^\n" + "{\n", + "name", fullname.substr(lastindex + 1)); + } else { + printer.Print( + "class ^name^\n" + "{\n", + "name", fullname); + } + Indent(&printer); + + for (int i = 0; i < en->value_count(); i++) { + const EnumValueDescriptor* value = en->value(i); + GenerateEnumValueDocComment(&printer, value); + printer.Print("const ^name^ = ^number^;\n", + "name", value->name(), + "number", IntToString(value->number())); } - for (int i = 0; i < file->dependency_count(); i++) { - const std::string& name = file->dependency(i)->name(); - printer->Print("require_once('@name@');\n", "name", - GeneratedFileName(name, is_descriptor)); + Outdent(&printer); + printer.Print("}\n\n"); +} + +void GenerateMessageFile(const FileDescriptor* file, const Descriptor* message, + bool is_descriptor, + GeneratorContext* generator_context) { + // Don't generate MapEntry messages -- we use the PHP extension's native + // support for map fields instead. + if (message->options().map_entry()) { + return; + } + + std::string filename = GeneratedMessageFileName(message, is_descriptor); + scoped_ptr<io::ZeroCopyOutputStream> output( + generator_context->Open(filename)); + io::Printer printer(output.get(), '^'); + + GenerateHead(file, &printer); + + std::string fullname = FilenameToClassname(filename); + int lastindex = fullname.find_last_of("\\"); + + if (!file->package().empty()) { + printer.Print( + "namespace ^name^;\n\n", + "name", fullname.substr(0, lastindex)); + } + + GenerateUseDeclaration(is_descriptor, &printer); + + GenerateMessageDocComment(&printer, message); + if (lastindex != string::npos) { + printer.Print( + "class ^name^ extends \\Google\\Protobuf\\Internal\\Message\n" + "{\n", + "name", fullname.substr(lastindex + 1)); + } else { + printer.Print( + "class ^name^ extends \\Google\\Protobuf\\Internal\\Message\n" + "{\n", + "name", fullname); + } + Indent(&printer); + + // Field and oneof definitions. + for (int i = 0; i < message->field_count(); i++) { + const FieldDescriptor* field = message->field(i); + GenerateField(field, &printer, is_descriptor); + } + for (int i = 0; i < message->oneof_decl_count(); i++) { + const OneofDescriptor* oneof = message->oneof_decl(i); + GenerateOneofField(oneof, &printer); + } + printer.Print("\n"); + + printer.Print( + "public function __construct() {\n"); + Indent(&printer); + + std::string metadata_filename = + GeneratedMetadataFileName(file->name(), is_descriptor); + std::string metadata_fullname = FilenameToClassname(metadata_filename); + printer.Print( + "\\^fullname^::initOnce();\n" + "parent::__construct();\n", + "fullname", metadata_fullname); + + Outdent(&printer); + printer.Print("}\n\n"); + + // Field and oneof accessors. + for (int i = 0; i < message->field_count(); i++) { + const FieldDescriptor* field = message->field(i); + GenerateFieldAccessor(field, is_descriptor, &printer); + } + for (int i = 0; i < message->oneof_decl_count(); i++) { + const OneofDescriptor* oneof = message->oneof_decl(i); + printer.Print( + "public function get^camel_name^()\n" + "{\n" + " return $this->whichOneof(\"^name^\");\n" + "}\n\n", + "camel_name", UnderscoresToCamelCase(oneof->name(), true), "name", + oneof->name()); } - GenerateUseDeclaration(is_descriptor, printer); + Outdent(&printer); + printer.Print("}\n\n"); + + // Nested messages and enums. + for (int i = 0; i < message->nested_type_count(); i++) { + GenerateMessageFile(file, message->nested_type(i), is_descriptor, + generator_context); + } + for (int i = 0; i < message->enum_type_count(); i++) { + GenerateEnumFile(file, message->enum_type(i), is_descriptor, + generator_context); + } +} +void GenerateFile(const FileDescriptor* file, bool is_descriptor, + GeneratorContext* generator_context) { + GenerateMetadataFile(file, is_descriptor, generator_context); for (int i = 0; i < file->message_type_count(); i++) { - GenerateMessage("", file->message_type(i), is_descriptor, printer); + GenerateMessageFile(file, file->message_type(i), is_descriptor, + generator_context); } for (int i = 0; i < file->enum_type_count(); i++) { - GenerateEnum(file->enum_type(i), printer); + GenerateEnumFile(file, file->enum_type(i), is_descriptor, + generator_context); + } +} + +static string EscapePhpdoc(const string& input) { + string result; + result.reserve(input.size() * 2); + + char prev = '*'; + + for (string::size_type i = 0; i < input.size(); i++) { + char c = input[i]; + switch (c) { + case '*': + // Avoid "/*". + if (prev == '/') { + result.append("*"); + } else { + result.push_back(c); + } + break; + case '/': + // Avoid "*/". + if (prev == '*') { + result.append("/"); + } else { + result.push_back(c); + } + break; + case '@': + // '@' starts phpdoc tags including the @deprecated tag, which will + // cause a compile-time error if inserted before a declaration that + // does not have a corresponding @Deprecated annotation. + result.append("@"); + break; + case '<': + // Avoid interpretation as HTML. + result.append("<"); + break; + case '>': + // Avoid interpretation as HTML. + result.append(">"); + break; + case '&': + // Avoid interpretation as HTML. + result.append("&"); + break; + case '\\': + // Java interprets Unicode escape sequences anywhere! + result.append("\"); + break; + default: + result.push_back(c); + break; + } + + prev = c; } - GenerateAddFileToPool(file, is_descriptor, printer); + return result; } -bool Generator::Generate( - const FileDescriptor* file, - const string& parameter, - GeneratorContext* generator_context, - string* error) const { +static void GenerateDocCommentBodyForLocation( + io::Printer* printer, const SourceLocation& location) { + string comments = location.leading_comments.empty() ? + location.trailing_comments : location.leading_comments; + if (!comments.empty()) { + // TODO(teboring): Ideally we should parse the comment text as Markdown and + // write it back as HTML, but this requires a Markdown parser. For now + // we just use <pre> to get fixed-width text formatting. + + // If the comment itself contains block comment start or end markers, + // HTML-escape them so that they don't accidentally close the doc comment. + comments = EscapePhpdoc(comments); + + vector<string> lines = Split(comments, "\n"); + while (!lines.empty() && lines.back().empty()) { + lines.pop_back(); + } + + printer->Print(" * <pre>\n"); + for (int i = 0; i < lines.size(); i++) { + // Most lines should start with a space. Watch out for lines that start + // with a /, since putting that right after the leading asterisk will + // close the comment. + if (!lines[i].empty() && lines[i][0] == '/') { + printer->Print(" * ^line^\n", "line", lines[i]); + } else { + printer->Print(" *^line^\n", "line", lines[i]); + } + } + printer->Print( + " * </pre>\n" + " *\n"); + } +} + +template <typename DescriptorType> +static void GenerateDocCommentBody( + io::Printer* printer, const DescriptorType* descriptor) { + SourceLocation location; + if (descriptor->GetSourceLocation(&location)) { + GenerateDocCommentBodyForLocation(printer, location); + } +} + +static string FirstLineOf(const string& value) { + string result = value; + + string::size_type pos = result.find_first_of('\n'); + if (pos != string::npos) { + result.erase(pos); + } + + return result; +} + +void GenerateMessageDocComment(io::Printer* printer, + const Descriptor* message) { + printer->Print("/**\n"); + GenerateDocCommentBody(printer, message); + printer->Print( + " * Protobuf type <code>^fullname^</code>\n" + " */\n", + "fullname", EscapePhpdoc(message->full_name())); +} + +void GenerateFieldDocComment(io::Printer* printer, + const FieldDescriptor* field) { + // In theory we should have slightly different comments for setters, getters, + // etc., but in practice everyone already knows the difference between these + // so it's redundant information. + + // We start the comment with the main body based on the comments from the + // .proto file (if present). We then end with the field declaration, e.g.: + // optional string foo = 5; + // If the field is a group, the debug string might end with {. + printer->Print("/**\n"); + GenerateDocCommentBody(printer, field); + printer->Print( + " * <code>^def^</code>\n", + "def", EscapePhpdoc(FirstLineOf(field->DebugString()))); + printer->Print(" */\n"); +} + +void GenerateEnumDocComment(io::Printer* printer, const EnumDescriptor* enum_) { + printer->Print("/**\n"); + GenerateDocCommentBody(printer, enum_); + printer->Print( + " * Protobuf enum <code>^fullname^</code>\n" + " */\n", + "fullname", EscapePhpdoc(enum_->full_name())); +} + +void GenerateEnumValueDocComment(io::Printer* printer, + const EnumValueDescriptor* value) { + printer->Print("/**\n"); + GenerateDocCommentBody(printer, value); + printer->Print( + " * <code>^def^</code>\n" + " */\n", + "def", EscapePhpdoc(FirstLineOf(value->DebugString()))); +} + +bool Generator::Generate(const FileDescriptor* file, const string& parameter, + GeneratorContext* generator_context, + string* error) const { bool is_descriptor = parameter == "internal"; if (is_descriptor && file->name() != kDescriptorFile) { @@ -765,12 +1078,7 @@ bool Generator::Generate( return false; } - std::string filename = GeneratedFileName(file->name(), is_descriptor); - scoped_ptr<io::ZeroCopyOutputStream> output( - generator_context->Open(filename)); - io::Printer printer(output.get(), '@'); - - GenerateFile(file, is_descriptor, &printer); + GenerateFile(file, is_descriptor, generator_context); return true; } |