From 40ee551715c3a784ea6132dbf604b0e665ca2def Mon Sep 17 00:00:00 2001 From: temporal Date: Thu, 10 Jul 2008 02:12:20 +0000 Subject: Initial checkin. --- .../protobuf/compiler/java/java_message_field.cc | 302 +++++++++++++++++++++ 1 file changed, 302 insertions(+) create mode 100644 src/google/protobuf/compiler/java/java_message_field.cc (limited to 'src/google/protobuf/compiler/java/java_message_field.cc') diff --git a/src/google/protobuf/compiler/java/java_message_field.cc b/src/google/protobuf/compiler/java/java_message_field.cc new file mode 100644 index 00000000..16ddb0d6 --- /dev/null +++ b/src/google/protobuf/compiler/java/java_message_field.cc @@ -0,0 +1,302 @@ +// Protocol Buffers - Google's data interchange format +// Copyright 2008 Google Inc. +// http://code.google.com/p/protobuf/ +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +// Author: kenton@google.com (Kenton Varda) +// Based on original Protocol Buffers design by +// Sanjay Ghemawat, Jeff Dean, and others. + +#include +#include + +#include +#include +#include +#include +#include + +namespace google { +namespace protobuf { +namespace compiler { +namespace java { + +namespace { + +// TODO(kenton): Factor out a "SetCommonFieldVariables()" to get rid of +// repeat code between this and the other field types. +void SetMessageVariables(const FieldDescriptor* descriptor, + map* variables) { + (*variables)["name"] = + UnderscoresToCamelCase(descriptor); + (*variables)["capitalized_name"] = + UnderscoresToCapitalizedCamelCase(descriptor); + (*variables)["number"] = SimpleItoa(descriptor->number()); + (*variables)["type"] = ClassName(descriptor->message_type()); + (*variables)["group_or_message"] = + (descriptor->type() == FieldDescriptor::TYPE_GROUP) ? + "Group" : "Message"; +} + +} // namespace + +// =================================================================== + +MessageFieldGenerator:: +MessageFieldGenerator(const FieldDescriptor* descriptor) + : descriptor_(descriptor) { + SetMessageVariables(descriptor, &variables_); +} + +MessageFieldGenerator::~MessageFieldGenerator() {} + +void MessageFieldGenerator:: +GenerateMembers(io::Printer* printer) const { + printer->Print(variables_, + "private boolean has$capitalized_name$;\n" + "private $type$ $name$_ = $type$.getDefaultInstance();\n" + "public boolean has$capitalized_name$() { return has$capitalized_name$; }\n" + "public $type$ get$capitalized_name$() { return $name$_; }\n"); +} + +void MessageFieldGenerator:: +GenerateBuilderMembers(io::Printer* printer) const { + printer->Print(variables_, + "public boolean has$capitalized_name$() {\n" + " return result.has$capitalized_name$();\n" + "}\n" + "public $type$ get$capitalized_name$() {\n" + " return result.get$capitalized_name$();\n" + "}\n" + "public Builder set$capitalized_name$($type$ value) {\n" + " result.has$capitalized_name$ = true;\n" + " result.$name$_ = value;\n" + " return this;\n" + "}\n" + "public Builder set$capitalized_name$($type$.Builder builderForValue) {\n" + " result.has$capitalized_name$ = true;\n" + " result.$name$_ = builderForValue.build();\n" + " return this;\n" + "}\n" + "public Builder merge$capitalized_name$($type$ value) {\n" + " if (result.has$capitalized_name$() &&\n" + " result.$name$_ != $type$.getDefaultInstance()) {\n" + " result.$name$_ =\n" + " $type$.newBuilder(result.$name$_).mergeFrom(value).buildPartial();\n" + " } else {\n" + " result.$name$_ = value;\n" + " }\n" + " result.has$capitalized_name$ = true;\n" + " return this;\n" + "}\n" + "public Builder clear$capitalized_name$() {\n" + " result.has$capitalized_name$ = false;\n" + " result.$name$_ = $type$.getDefaultInstance();\n" + " return this;\n" + "}\n"); +} + +void MessageFieldGenerator:: +GenerateMergingCode(io::Printer* printer) const { + printer->Print(variables_, + "if (other.has$capitalized_name$()) {\n" + " merge$capitalized_name$(other.get$capitalized_name$());\n" + "}\n"); +} + +void MessageFieldGenerator:: +GenerateBuildingCode(io::Printer* printer) const { + // Nothing to do for singular fields. +} + +void MessageFieldGenerator:: +GenerateParsingCode(io::Printer* printer) const { + printer->Print(variables_, + "$type$.Builder subBuilder = $type$.newBuilder();\n" + "if (has$capitalized_name$()) {\n" + " subBuilder.mergeFrom(get$capitalized_name$());\n" + "}\n"); + + if (descriptor_->type() == FieldDescriptor::TYPE_GROUP) { + printer->Print(variables_, + "input.readGroup($number$, subBuilder, extensionRegistry);\n"); + } else { + printer->Print(variables_, + "input.readMessage(subBuilder, extensionRegistry);\n"); + } + + printer->Print(variables_, + "set$capitalized_name$(subBuilder.buildPartial());\n"); +} + +void MessageFieldGenerator:: +GenerateSerializationCode(io::Printer* printer) const { + printer->Print(variables_, + "if (has$capitalized_name$()) {\n" + " output.write$group_or_message$($number$, get$capitalized_name$());\n" + "}\n"); +} + +void MessageFieldGenerator:: +GenerateSerializedSizeCode(io::Printer* printer) const { + printer->Print(variables_, + "if (has$capitalized_name$()) {\n" + " size += com.google.protobuf.CodedOutputStream\n" + " .compute$group_or_message$Size($number$, get$capitalized_name$());\n" + "}\n"); +} + +string MessageFieldGenerator::GetBoxedType() const { + return ClassName(descriptor_->message_type()); +} + +// =================================================================== + +RepeatedMessageFieldGenerator:: +RepeatedMessageFieldGenerator(const FieldDescriptor* descriptor) + : descriptor_(descriptor) { + SetMessageVariables(descriptor, &variables_); +} + +RepeatedMessageFieldGenerator::~RepeatedMessageFieldGenerator() {} + +void RepeatedMessageFieldGenerator:: +GenerateMembers(io::Printer* printer) const { + printer->Print(variables_, + "private java.util.List<$type$> $name$_ =\n" + " java.util.Collections.emptyList();\n" + "public java.util.List<$type$> get$capitalized_name$List() {\n" + " return $name$_;\n" // note: unmodifiable list + "}\n" + "public int get$capitalized_name$Count() { return $name$_.size(); }\n" + "public $type$ get$capitalized_name$(int index) {\n" + " return $name$_.get(index);\n" + "}\n"); +} + +void RepeatedMessageFieldGenerator:: +GenerateBuilderMembers(io::Printer* printer) const { + printer->Print(variables_, + // Note: We return an unmodifiable list because otherwise the caller + // could hold on to the returned list and modify it after the message + // has been built, thus mutating the message which is supposed to be + // immutable. + "public java.util.List<$type$> get$capitalized_name$List() {\n" + " return java.util.Collections.unmodifiableList(result.$name$_);\n" + "}\n" + "public int get$capitalized_name$Count() {\n" + " return result.get$capitalized_name$Count();\n" + "}\n" + "public $type$ get$capitalized_name$(int index) {\n" + " return result.get$capitalized_name$(index);\n" + "}\n" + "public Builder set$capitalized_name$(int index, $type$ value) {\n" + " result.$name$_.set(index, value);\n" + " return this;\n" + "}\n" + "public Builder set$capitalized_name$(int index, " + "$type$.Builder builderForValue) {\n" + " result.$name$_.set(index, builderForValue.build());\n" + " return this;\n" + "}\n" + "public Builder add$capitalized_name$($type$ value) {\n" + " if (result.$name$_.isEmpty()) {\n" + " result.$name$_ = new java.util.ArrayList<$type$>();\n" + " }\n" + " result.$name$_.add(value);\n" + " return this;\n" + "}\n" + "public Builder add$capitalized_name$($type$.Builder builderForValue) {\n" + " if (result.$name$_.isEmpty()) {\n" + " result.$name$_ = new java.util.ArrayList<$type$>();\n" + " }\n" + " result.$name$_.add(builderForValue.build());\n" + " return this;\n" + "}\n" + "public Builder addAll$capitalized_name$(\n" + " java.lang.Iterable values) {\n" + " if (result.$name$_.isEmpty()) {\n" + " result.$name$_ = new java.util.ArrayList<$type$>();\n" + " }\n" + " super.addAll(values, result.$name$_);\n" + " return this;\n" + "}\n" + "public Builder clear$capitalized_name$() {\n" + " result.$name$_ = java.util.Collections.emptyList();\n" + " return this;\n" + "}\n"); +} + +void RepeatedMessageFieldGenerator:: +GenerateMergingCode(io::Printer* printer) const { + printer->Print(variables_, + "if (!other.$name$_.isEmpty()) {\n" + " if (result.$name$_.isEmpty()) {\n" + " result.$name$_ = new java.util.ArrayList<$type$>();\n" + " }\n" + " result.$name$_.addAll(other.$name$_);\n" + "}\n"); +} + +void RepeatedMessageFieldGenerator:: +GenerateBuildingCode(io::Printer* printer) const { + printer->Print(variables_, + "if (result.$name$_ != java.util.Collections.EMPTY_LIST) {\n" + " result.$name$_ =\n" + " java.util.Collections.unmodifiableList(result.$name$_);\n" + "}\n"); +} + +void RepeatedMessageFieldGenerator:: +GenerateParsingCode(io::Printer* printer) const { + printer->Print(variables_, + "$type$.Builder subBuilder = $type$.newBuilder();\n"); + + if (descriptor_->type() == FieldDescriptor::TYPE_GROUP) { + printer->Print(variables_, + "input.readGroup($number$, subBuilder, extensionRegistry);\n"); + } else { + printer->Print(variables_, + "input.readMessage(subBuilder, extensionRegistry);\n"); + } + + printer->Print(variables_, + "add$capitalized_name$(subBuilder.buildPartial());\n"); +} + +void RepeatedMessageFieldGenerator:: +GenerateSerializationCode(io::Printer* printer) const { + printer->Print(variables_, + "for ($type$ element : get$capitalized_name$List()) {\n" + " output.write$group_or_message$($number$, element);\n" + "}\n"); +} + +void RepeatedMessageFieldGenerator:: +GenerateSerializedSizeCode(io::Printer* printer) const { + printer->Print(variables_, + "for ($type$ element : get$capitalized_name$List()) {\n" + " size += com.google.protobuf.CodedOutputStream\n" + " .compute$group_or_message$Size($number$, element);\n" + "}\n"); +} + +string RepeatedMessageFieldGenerator::GetBoxedType() const { + return ClassName(descriptor_->message_type()); +} + +} // namespace java +} // namespace compiler +} // namespace protobuf +} // namespace google -- cgit v1.2.3