diff options
Diffstat (limited to 'src/google/protobuf/compiler/php/php_generator.cc')
| -rw-r--r-- | src/google/protobuf/compiler/php/php_generator.cc | 781 |
1 files changed, 781 insertions, 0 deletions
diff --git a/src/google/protobuf/compiler/php/php_generator.cc b/src/google/protobuf/compiler/php/php_generator.cc new file mode 100644 index 00000000..75ddb405 --- /dev/null +++ b/src/google/protobuf/compiler/php/php_generator.cc @@ -0,0 +1,781 @@ +// Protocol Buffers - Google's data interchange format +// Copyright 2008 Google Inc. All rights reserved. +// https://developers.google.com/protocol-buffers/ +// +// 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. + +#include <google/protobuf/compiler/php/php_generator.h> + +#include <google/protobuf/compiler/code_generator.h> +#include <google/protobuf/compiler/plugin.h> +#include <google/protobuf/descriptor.h> +#include <google/protobuf/descriptor.pb.h> +#include <google/protobuf/io/printer.h> +#include <google/protobuf/io/zero_copy_stream.h> +#include <google/protobuf/stubs/strutil.h> + +#include <sstream> + +using google::protobuf::internal::scoped_ptr; + +const std::string kDescriptorFile = "google/protobuf/descriptor.proto"; +const std::string kDescriptorPackageName = "Google\\Protobuf\\Internal"; + +namespace google { +namespace protobuf { +namespace compiler { +namespace php { + +// Forward decls. +std::string PhpName(const std::string& full_name, bool is_descriptor); +std::string DefaultForField(google::protobuf::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 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) { + string message_name = message->name(); + const google::protobuf::Descriptor* descriptor = message->containing_type(); + while (descriptor != NULL) { + message_name = descriptor->name() + '_' + message_name; + descriptor = descriptor->containing_type(); + } + return PhpName(message->file()->package(), is_descriptor) + '\\' + + message_name; +} + +std::string MessageFullName(const google::protobuf::Descriptor* message, + bool is_descriptor) { + if (is_descriptor) { + return StringReplace(message->full_name(), + "google.protobuf", + "google.protobuf.internal", false); + } else { + return message->full_name(); + } +} + +std::string EnumFullName(const google::protobuf::EnumDescriptor* envm, + bool is_descriptor) { + if (is_descriptor) { + return StringReplace(envm->full_name(), + "google.protobuf", + "google.protobuf.internal", false); + } else { + return envm->full_name(); + } +} + +std::string EnumClassName(const google::protobuf::EnumDescriptor* envm) { + string enum_class_name = envm->name(); + const google::protobuf::Descriptor* descriptor = envm->containing_type(); + while (descriptor != NULL) { + enum_class_name = descriptor->name() + '_' + enum_class_name; + descriptor = descriptor->containing_type(); + } + return enum_class_name; +} + +std::string EnumName(const google::protobuf::EnumDescriptor* envm, + bool is_descriptor) { + string enum_name = EnumClassName(envm); + return PhpName(envm->file()->package(), is_descriptor) + '\\' + enum_name; +} + +std::string PhpName(const std::string& full_name, bool is_descriptor) { + if (is_descriptor) { + return kDescriptorPackageName; + } + + std::string result; + bool cap_next_letter = true; + for (int i = 0; i < full_name.size(); i++) { + if ('a' <= full_name[i] && full_name[i] <= 'z' && cap_next_letter) { + result += full_name[i] + ('A' - 'a'); + cap_next_letter = false; + } else if (full_name[i] == '.') { + result += '\\'; + cap_next_letter = true; + } else { + result += full_name[i]; + cap_next_letter = false; + } + } + return result; +} + +std::string DefaultForField(const google::protobuf::FieldDescriptor* field) { + switch (field->type()) { + case FieldDescriptor::TYPE_INT32: + case FieldDescriptor::TYPE_INT64: + case FieldDescriptor::TYPE_UINT32: + case FieldDescriptor::TYPE_UINT64: + case FieldDescriptor::TYPE_SINT32: + case FieldDescriptor::TYPE_SINT64: + case FieldDescriptor::TYPE_FIXED32: + case FieldDescriptor::TYPE_FIXED64: + case FieldDescriptor::TYPE_SFIXED32: + case FieldDescriptor::TYPE_SFIXED64: + case FieldDescriptor::TYPE_ENUM: return "0"; + case FieldDescriptor::TYPE_DOUBLE: + case FieldDescriptor::TYPE_FLOAT: return "0.0"; + case FieldDescriptor::TYPE_BOOL: return "false"; + case FieldDescriptor::TYPE_STRING: + case FieldDescriptor::TYPE_BYTES: return "''"; + case FieldDescriptor::TYPE_MESSAGE: + case FieldDescriptor::TYPE_GROUP: return "null"; + default: assert(false); return ""; + } +} + +std::string GeneratedFileName(const std::string& proto_file, + bool is_descriptor) { + if (is_descriptor) { + return "descriptor_internal.pb.php"; + } else { + int lastindex = proto_file.find_last_of("."); + return proto_file.substr(0, lastindex) + ".pb.php"; + } +} + +std::string IntToString(int32 value) { + std::ostringstream os; + os << value; + return os.str(); +} + +std::string LabelForField(const google::protobuf::FieldDescriptor* field) { + switch (field->label()) { + case FieldDescriptor::LABEL_OPTIONAL: return "optional"; + case FieldDescriptor::LABEL_REQUIRED: return "required"; + case FieldDescriptor::LABEL_REPEATED: return "repeated"; + default: assert(false); return ""; + } +} + +std::string TypeName(const google::protobuf::FieldDescriptor* field) { + switch (field->type()) { + case FieldDescriptor::TYPE_INT32: return "int32"; + case FieldDescriptor::TYPE_INT64: return "int64"; + case FieldDescriptor::TYPE_UINT32: return "uint32"; + case FieldDescriptor::TYPE_UINT64: return "uint64"; + case FieldDescriptor::TYPE_SINT32: return "sint32"; + case FieldDescriptor::TYPE_SINT64: return "sint64"; + case FieldDescriptor::TYPE_FIXED32: return "fixed32"; + case FieldDescriptor::TYPE_FIXED64: return "fixed64"; + case FieldDescriptor::TYPE_SFIXED32: return "sfixed32"; + case FieldDescriptor::TYPE_SFIXED64: return "sfixed64"; + case FieldDescriptor::TYPE_DOUBLE: return "double"; + case FieldDescriptor::TYPE_FLOAT: return "float"; + case FieldDescriptor::TYPE_BOOL: return "bool"; + case FieldDescriptor::TYPE_ENUM: return "enum"; + case FieldDescriptor::TYPE_STRING: return "string"; + case FieldDescriptor::TYPE_BYTES: return "bytes"; + case FieldDescriptor::TYPE_MESSAGE: return "message"; + case FieldDescriptor::TYPE_GROUP: return "group"; + default: assert(false); return ""; + } +} + +std::string EnumOrMessageSuffix( + const google::protobuf::FieldDescriptor* field, bool is_descriptor) { + if (field->cpp_type() == FieldDescriptor::CPPTYPE_MESSAGE) { + return ", '" + MessageFullName(field->message_type(), is_descriptor) + "'"; + } + if (field->cpp_type() == FieldDescriptor::CPPTYPE_ENUM) { + return ", '" + EnumFullName(field->enum_type(), is_descriptor) + "'"; + } + return ""; +} + +// Converts a name to camel-case. If cap_first_letter is true, capitalize the +// first letter. +std::string UnderscoresToCamelCase(const string& input, bool cap_first_letter) { + std::string result; + for (int i = 0; i < input.size(); i++) { + if ('a' <= input[i] && input[i] <= 'z') { + if (cap_first_letter) { + result += input[i] + ('A' - 'a'); + } else { + result += input[i]; + } + cap_first_letter = false; + } else if ('A' <= input[i] && input[i] <= 'Z') { + if (i == 0 && !cap_first_letter) { + // Force first letter to lower-case unless explicitly told to + // capitalize it. + result += input[i] + ('a' - 'A'); + } else { + // Capital letters after the first are left as-is. + result += input[i]; + } + cap_first_letter = false; + } else if ('0' <= input[i] && input[i] <= '9') { + result += input[i]; + cap_first_letter = true; + } else { + cap_first_letter = true; + } + } + // Add a trailing "_" if the name should be altered. + if (input[input.size() - 1] == '#') { + result += '_'; + } + return result; +} + +std::string EscapeDollor(const string& to_escape) { + return StringReplace(to_escape, "$", "\\$", true); +} + +std::string BinaryToHex(const string& src) { + string dest; + size_t i; + unsigned char symbol[16] = { + '0', '1', '2', '3', + '4', '5', '6', '7', + '8', '9', 'a', 'b', + 'c', 'd', 'e', 'f', + }; + + dest.resize(src.size() * 2); + char* append_ptr = &dest[0]; + + for (i = 0; i < src.size(); i++) { + *append_ptr++ = symbol[(src[i] & 0xf0) >> 4]; + *append_ptr++ = symbol[src[i] & 0x0f]; + } + + return dest; +} + +void Indent(google::protobuf::io::Printer* printer) { + printer->Indent(); + printer->Indent(); +} +void Outdent(google::protobuf::io::Printer* printer) { + printer->Outdent(); + printer->Outdent(); +} + +void GenerateField(const google::protobuf::FieldDescriptor* field, + google::protobuf::io::Printer* printer, bool is_descriptor) { + if (field->is_repeated()) { + printer->Print( + "private $@name@;\n", + "name", field->name()); + } else if (field->containing_oneof()) { + // Oneof fields are handled by GenerateOneofField. + return; + } else { + printer->Print( + "private $@name@ = @default@;\n", + "name", field->name(), + "default", DefaultForField(field)); + } + + if (is_descriptor) { + printer->Print( + "private $has_@name@ = false;\n", + "name", field->name()); + } +} + +void GenerateOneofField(const google::protobuf::OneofDescriptor* oneof, + google::protobuf::io::Printer* printer) { + // Oneof property needs to be protected in order to be accessed by parent + // class in implementation. + printer->Print( + "protected $@name@;\n", + "name", oneof->name()); +} + +void GenerateFieldAccessor(const google::protobuf::FieldDescriptor* field, + bool is_descriptor, + google::protobuf::io::Printer* printer) { + const OneofDescriptor* oneof = field->containing_oneof(); + + // Generate getter. + if (oneof != NULL) { + printer->Print( + "public function get@camel_name@()\n" + "{\n" + " return $this->readOneof(@number@);\n" + "}\n\n", + "camel_name", UnderscoresToCamelCase(field->name(), true), + "number", IntToString(field->number())); + } else { + printer->Print( + "public function get@camel_name@()\n" + "{\n" + " return $this->@name@;\n" + "}\n\n", + "camel_name", UnderscoresToCamelCase(field->name(), true), "name", + field->name()); + } + + // Generate setter. + printer->Print( + "public function set@camel_name@(@var@)\n" + "{\n", + "camel_name", UnderscoresToCamelCase(field->name(), true), + "var", (field->is_repeated() || + field->cpp_type() == FieldDescriptor::CPPTYPE_MESSAGE) ? + "&$var": "$var"); + + Indent(printer); + + // Type check. + if (field->is_map()) { + } else if (field->is_repeated()) { + printer->Print( + "GPBUtil::checkRepeatedField($var, GPBType::@type@", + "type", ToUpper(field->type_name())); + if (field->cpp_type() == FieldDescriptor::CPPTYPE_MESSAGE) { + printer->Print( + ", \\@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", + EnumName(field->enum_type(), is_descriptor) + "::class"); + } else { + printer->Print(");\n"); + } + } else if (field->cpp_type() == FieldDescriptor::CPPTYPE_MESSAGE) { + printer->Print( + "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", + "class_name", EnumName(field->enum_type(), is_descriptor)); + } else if (field->cpp_type() == FieldDescriptor::CPPTYPE_STRING) { + printer->Print( + "GPBUtil::checkString($var, @utf8@);\n", + "utf8", + field->type() == FieldDescriptor::TYPE_STRING ? "True": "False"); + } else { + printer->Print( + "GPBUtil::check@type@($var);\n", + "type", UnderscoresToCamelCase(field->cpp_type_name(), true)); + } + + if (oneof != NULL) { + printer->Print( + "$this->writeOneof(@number@, $var);\n", + "number", IntToString(field->number())); + } else { + printer->Print( + "$this->@name@ = $var;\n", + "name", field->name()); + } + + // Set has bit for proto2 only. + if (is_descriptor) { + printer->Print( + "$this->has_@field_name@ = true;\n", + "field_name", field->name()); + } + + Outdent(printer); + + printer->Print( + "}\n\n"); + + // Generate has method for proto2 only. + if (is_descriptor) { + printer->Print( + "public function has@camel_name@()\n" + "{\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(); + + 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), + "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", + "name", value->name(), + "number", IntToString(value->number())); + } + printer->Print("->finalizeToPool();\n\n"); + Outdent(printer); +} + +void GenerateMessageToPool(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 class_name = name_prefix.empty()? + message->name() : name_prefix + "_" + message->name(); + + printer->Print( + "$pool->addMessage('@message@', @class_name@::class)\n", + "message", MessageFullName(message, is_descriptor), + "class_name", class_name); + + Indent(printer); + + for (int i = 0; i < message->field_count(); i++) { + const FieldDescriptor* field = message->field(i); + if (field->is_map()) { + const FieldDescriptor* key = + field->message_type()->FindFieldByName("key"); + const FieldDescriptor* val = + field->message_type()->FindFieldByName("value"); + printer->Print( + "->map('@field@', GPBType::@key@, " + "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)); + } else if (!field->containing_oneof()) { + printer->Print( + "->@label@('@field@', 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)); + } + } + + // oneofs. + for (int i = 0; i < message->oneof_decl_count(); i++) { + const OneofDescriptor* oneof = message->oneof_decl(i); + 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", + "field", field->name(), + "type", ToUpper(field->type_name()), + "number", SimpleItoa(field->number()), + "other", EnumOrMessageSuffix(field, is_descriptor)); + } + printer->Print("->finish()\n"); + Outdent(printer); + } + + printer->Print( + "->finalizeToPool();\n"); + + Outdent(printer); + + printer->Print( + "\n"); + + for (int i = 0; i < message->nested_type_count(); i++) { + GenerateMessageToPool(class_name, message->nested_type(i), is_descriptor, + printer); + } + for (int i = 0; i < message->enum_type_count(); i++) { + GenerateEnumToPool(message->enum_type(i), is_descriptor, 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"); + + for (int i = 0; i < file->message_type_count(); i++) { + GenerateMessageToPool("", file->message_type(i), is_descriptor, printer); + } + for (int i = 0; i < file->enum_type_count(); i++) { + GenerateEnumToPool(file->enum_type(i), is_descriptor, printer); + } + + printer->Print( + "$pool->finish();\n"); + } else { + // Add messages and enums to descriptor pool. + printer->Print("$pool = DescriptorPool::getGeneratedPool();\n\n"); + + FileDescriptorSet files; + FileDescriptorProto* file_proto = files.add_file(); + file->CopyTo(file_proto); + string files_data; + files.SerializeToString(&files_data); + + printer->Print("$pool->internalAddGeneratedFile(hex2bin(\n"); + Indent(printer); + + // Only write 30 bytes per line. + static const int kBytesPerLine = 30; + for (int i = 0; i < files_data.size(); i += kBytesPerLine) { + printer->Print( + "\"@data@\"@dot@\n", + "data", BinaryToHex(files_data.substr(i, kBytesPerLine)), + "dot", i + kBytesPerLine < files_data.size() ? " ." : ""); + } + + Outdent(printer); + 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())); + } + Outdent(printer); + printer->Print("}\n\n"); +} + +void GenerateUseDeclaration(bool is_descriptor, + google::protobuf::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" + "use Google\\Protobuf\\Internal\\InputStream;\n\n" + "use Google\\Protobuf\\Internal\\GPBUtil;\n\n"); + } +} + +void GenerateFile(const google::protobuf::FileDescriptor* file, + bool is_descriptor, google::protobuf::io::Printer* printer) { + printer->Print( + "<?php\n" + "# Generated by the protocol buffer compiler. DO NOT EDIT!\n" + "# source: @filename@\n" + "\n", + "filename", file->name()); + if (!file->package().empty()) { + printer->Print("namespace @name@;\n\n", + "name", PhpName(file->package(), is_descriptor)); + } + + 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)); + } + + GenerateUseDeclaration(is_descriptor, printer); + + for (int i = 0; i < file->message_type_count(); i++) { + GenerateMessage("", file->message_type(i), is_descriptor, printer); + } + for (int i = 0; i < file->enum_type_count(); i++) { + GenerateEnum(file->enum_type(i), printer); + } + + GenerateAddFileToPool(file, is_descriptor, printer); +} + +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) { + *error = + "Can only generate PHP code for google/protobuf/descriptor.proto.\n"; + return false; + } + + if (!is_descriptor && file->syntax() != FileDescriptor::SYNTAX_PROTO3) { + *error = + "Can only generate PHP code for proto3 .proto files.\n" + "Please add 'syntax = \"proto3\";' to the top of your .proto file.\n"; + 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); + + return true; +} + +} // namespace php +} // namespace compiler +} // namespace protobuf +} // namespace google |