| // 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 <google/protobuf/compiler/java/java_extension.h> |
| #include <google/protobuf/compiler/java/java_helpers.h> |
| #include <google/protobuf/stubs/strutil.h> |
| #include <google/protobuf/io/printer.h> |
| |
| namespace google { |
| namespace protobuf { |
| namespace compiler { |
| namespace java { |
| |
| namespace { |
| |
| const char* TypeName(FieldDescriptor::Type field_type) { |
| switch (field_type) { |
| case FieldDescriptor::TYPE_INT32 : return "INT32"; |
| case FieldDescriptor::TYPE_UINT32 : return "UINT32"; |
| case FieldDescriptor::TYPE_SINT32 : return "SINT32"; |
| case FieldDescriptor::TYPE_FIXED32 : return "FIXED32"; |
| case FieldDescriptor::TYPE_SFIXED32: return "SFIXED32"; |
| case FieldDescriptor::TYPE_INT64 : return "INT64"; |
| case FieldDescriptor::TYPE_UINT64 : return "UINT64"; |
| case FieldDescriptor::TYPE_SINT64 : return "SINT64"; |
| case FieldDescriptor::TYPE_FIXED64 : return "FIXED64"; |
| case FieldDescriptor::TYPE_SFIXED64: return "SFIXED64"; |
| case FieldDescriptor::TYPE_FLOAT : return "FLOAT"; |
| case FieldDescriptor::TYPE_DOUBLE : return "DOUBLE"; |
| case FieldDescriptor::TYPE_BOOL : return "BOOL"; |
| case FieldDescriptor::TYPE_STRING : return "STRING"; |
| case FieldDescriptor::TYPE_BYTES : return "BYTES"; |
| case FieldDescriptor::TYPE_ENUM : return "ENUM"; |
| case FieldDescriptor::TYPE_GROUP : return "GROUP"; |
| case FieldDescriptor::TYPE_MESSAGE : return "MESSAGE"; |
| |
| // No default because we want the compiler to complain if any new |
| // types are added. |
| } |
| |
| GOOGLE_LOG(FATAL) << "Can't get here."; |
| return NULL; |
| } |
| |
| } |
| |
| ExtensionGenerator::ExtensionGenerator(const FieldDescriptor* descriptor) |
| : descriptor_(descriptor) { |
| if (descriptor_->extension_scope() != NULL) { |
| scope_ = ClassName(descriptor_->extension_scope()); |
| } else { |
| scope_ = ClassName(descriptor_->file()); |
| } |
| } |
| |
| ExtensionGenerator::~ExtensionGenerator() {} |
| |
| // Initializes the vars referenced in the generated code templates. |
| void InitTemplateVars(const FieldDescriptor* descriptor, |
| const string& scope, |
| map<string, string>* vars_pointer) { |
| map<string, string> &vars = *vars_pointer; |
| vars["scope"] = scope; |
| vars["name"] = UnderscoresToCamelCase(descriptor); |
| vars["containing_type"] = ClassName(descriptor->containing_type()); |
| vars["number"] = SimpleItoa(descriptor->number()); |
| vars["constant_name"] = FieldConstantName(descriptor); |
| vars["index"] = SimpleItoa(descriptor->index()); |
| vars["default"] = |
| descriptor->is_repeated() ? "" : DefaultValue(descriptor); |
| vars["type_constant"] = TypeName(GetType(descriptor)); |
| vars["packed"] = descriptor->options().packed() ? "true" : "false"; |
| vars["enum_map"] = "null"; |
| vars["prototype"] = "null"; |
| |
| JavaType java_type = GetJavaType(descriptor); |
| string singular_type; |
| switch (java_type) { |
| case JAVATYPE_MESSAGE: |
| singular_type = ClassName(descriptor->message_type()); |
| vars["prototype"] = singular_type + ".getDefaultInstance()"; |
| break; |
| case JAVATYPE_ENUM: |
| singular_type = ClassName(descriptor->enum_type()); |
| vars["enum_map"] = singular_type + ".internalGetValueMap()"; |
| break; |
| default: |
| singular_type = BoxedPrimitiveTypeName(java_type); |
| break; |
| } |
| vars["type"] = descriptor->is_repeated() ? |
| "java.util.List<" + singular_type + ">" : singular_type; |
| vars["singular_type"] = singular_type; |
| } |
| |
| void ExtensionGenerator::Generate(io::Printer* printer) { |
| map<string, string> vars; |
| InitTemplateVars(descriptor_, scope_, &vars); |
| printer->Print(vars, |
| "public static final int $constant_name$ = $number$;\n"); |
| |
| if (HasDescriptorMethods(descriptor_->file())) { |
| // Non-lite extensions |
| if (descriptor_->extension_scope() == NULL) { |
| // Non-nested |
| printer->Print( |
| vars, |
| "public static final\n" |
| " com.google.protobuf.GeneratedMessage.GeneratedExtension<\n" |
| " $containing_type$,\n" |
| " $type$> $name$ = com.google.protobuf.GeneratedMessage\n" |
| " .newFileScopedGeneratedExtension(\n" |
| " $singular_type$.class,\n" |
| " $prototype$);\n"); |
| } else { |
| // Nested |
| printer->Print( |
| vars, |
| "public static final\n" |
| " com.google.protobuf.GeneratedMessage.GeneratedExtension<\n" |
| " $containing_type$,\n" |
| " $type$> $name$ = com.google.protobuf.GeneratedMessage\n" |
| " .newMessageScopedGeneratedExtension(\n" |
| " $scope$.getDefaultInstance(),\n" |
| " $index$,\n" |
| " $singular_type$.class,\n" |
| " $prototype$);\n"); |
| } |
| } else { |
| // Lite extensions |
| if (descriptor_->is_repeated()) { |
| printer->Print( |
| vars, |
| "public static final\n" |
| " com.google.protobuf.GeneratedMessageLite.GeneratedExtension<\n" |
| " $containing_type$,\n" |
| " $type$> $name$ = com.google.protobuf.GeneratedMessageLite\n" |
| " .newRepeatedGeneratedExtension(\n" |
| " $containing_type$.getDefaultInstance(),\n" |
| " $prototype$,\n" |
| " $enum_map$,\n" |
| " $number$,\n" |
| " com.google.protobuf.WireFormat.FieldType.$type_constant$,\n" |
| " $packed$);\n"); |
| } else { |
| printer->Print( |
| vars, |
| "public static final\n" |
| " com.google.protobuf.GeneratedMessageLite.GeneratedExtension<\n" |
| " $containing_type$,\n" |
| " $type$> $name$ = com.google.protobuf.GeneratedMessageLite\n" |
| " .newSingularGeneratedExtension(\n" |
| " $containing_type$.getDefaultInstance(),\n" |
| " $default$,\n" |
| " $prototype$,\n" |
| " $enum_map$,\n" |
| " $number$,\n" |
| " com.google.protobuf.WireFormat.FieldType.$type_constant$);\n"); |
| } |
| } |
| } |
| |
| void ExtensionGenerator::GenerateNonNestedInitializationCode( |
| io::Printer* printer) { |
| if (descriptor_->extension_scope() == NULL && |
| HasDescriptorMethods(descriptor_->file())) { |
| // Only applies to non-nested, non-lite extensions. |
| printer->Print( |
| "$name$.internalInit(descriptor.getExtensions().get($index$));\n", |
| "name", UnderscoresToCamelCase(descriptor_), |
| "index", SimpleItoa(descriptor_->index())); |
| } |
| } |
| |
| void ExtensionGenerator::GenerateRegistrationCode(io::Printer* printer) { |
| printer->Print( |
| "registry.add($scope$.$name$);\n", |
| "scope", scope_, |
| "name", UnderscoresToCamelCase(descriptor_)); |
| } |
| |
| } // namespace java |
| } // namespace compiler |
| } // namespace protobuf |
| } // namespace google |
