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Diffstat (limited to 'src/google/protobuf/compiler/java/java_primitive_field.cc')
| -rw-r--r-- | src/google/protobuf/compiler/java/java_primitive_field.cc | 453 |
1 files changed, 453 insertions, 0 deletions
diff --git a/src/google/protobuf/compiler/java/java_primitive_field.cc b/src/google/protobuf/compiler/java/java_primitive_field.cc new file mode 100644 index 0000000..327c205 --- /dev/null +++ b/src/google/protobuf/compiler/java/java_primitive_field.cc @@ -0,0 +1,453 @@ +// 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 <map> +#include <string> + +#include <google/protobuf/compiler/java/java_primitive_field.h> +#include <google/protobuf/stubs/common.h> +#include <google/protobuf/compiler/java/java_helpers.h> +#include <google/protobuf/io/printer.h> +#include <google/protobuf/wire_format.h> +#include <google/protobuf/stubs/strutil.h> + +namespace google { +namespace protobuf { +namespace compiler { +namespace java { + +using internal::WireFormat; +using internal::WireFormatLite; + +namespace { + +const char* PrimitiveTypeName(JavaType type) { + switch (type) { + case JAVATYPE_INT : return "int"; + case JAVATYPE_LONG : return "long"; + case JAVATYPE_FLOAT : return "float"; + case JAVATYPE_DOUBLE : return "double"; + case JAVATYPE_BOOLEAN: return "boolean"; + case JAVATYPE_STRING : return "java.lang.String"; + case JAVATYPE_BYTES : return "com.google.protobuf.ByteString"; + case JAVATYPE_ENUM : return NULL; + case JAVATYPE_MESSAGE: return NULL; + + // No default because we want the compiler to complain if any new + // JavaTypes are added. + } + + GOOGLE_LOG(FATAL) << "Can't get here."; + return NULL; +} + +bool IsReferenceType(JavaType type) { + switch (type) { + case JAVATYPE_INT : return false; + case JAVATYPE_LONG : return false; + case JAVATYPE_FLOAT : return false; + case JAVATYPE_DOUBLE : return false; + case JAVATYPE_BOOLEAN: return false; + case JAVATYPE_STRING : return true; + case JAVATYPE_BYTES : return true; + case JAVATYPE_ENUM : return true; + case JAVATYPE_MESSAGE: return true; + + // No default because we want the compiler to complain if any new + // JavaTypes are added. + } + + GOOGLE_LOG(FATAL) << "Can't get here."; + return false; +} + +const char* GetCapitalizedType(const FieldDescriptor* field) { + 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; +} + +// For encodings with fixed sizes, returns that size in bytes. Otherwise +// returns -1. +int FixedSize(FieldDescriptor::Type type) { + switch (type) { + case FieldDescriptor::TYPE_INT32 : return -1; + case FieldDescriptor::TYPE_INT64 : return -1; + case FieldDescriptor::TYPE_UINT32 : return -1; + case FieldDescriptor::TYPE_UINT64 : return -1; + case FieldDescriptor::TYPE_SINT32 : return -1; + case FieldDescriptor::TYPE_SINT64 : return -1; + case FieldDescriptor::TYPE_FIXED32 : return WireFormatLite::kFixed32Size; + case FieldDescriptor::TYPE_FIXED64 : return WireFormatLite::kFixed64Size; + case FieldDescriptor::TYPE_SFIXED32: return WireFormatLite::kSFixed32Size; + case FieldDescriptor::TYPE_SFIXED64: return WireFormatLite::kSFixed64Size; + case FieldDescriptor::TYPE_FLOAT : return WireFormatLite::kFloatSize; + case FieldDescriptor::TYPE_DOUBLE : return WireFormatLite::kDoubleSize; + + case FieldDescriptor::TYPE_BOOL : return WireFormatLite::kBoolSize; + case FieldDescriptor::TYPE_ENUM : return -1; + + case FieldDescriptor::TYPE_STRING : return -1; + case FieldDescriptor::TYPE_BYTES : return -1; + case FieldDescriptor::TYPE_GROUP : return -1; + case FieldDescriptor::TYPE_MESSAGE : return -1; + + // No default because we want the compiler to complain if any new + // types are added. + } + GOOGLE_LOG(FATAL) << "Can't get here."; + return -1; +} + +void SetPrimitiveVariables(const FieldDescriptor* descriptor, + map<string, string>* variables) { + (*variables)["name"] = + UnderscoresToCamelCase(descriptor); + (*variables)["capitalized_name"] = + UnderscoresToCapitalizedCamelCase(descriptor); + (*variables)["number"] = SimpleItoa(descriptor->number()); + (*variables)["type"] = PrimitiveTypeName(GetJavaType(descriptor)); + (*variables)["boxed_type"] = BoxedPrimitiveTypeName(GetJavaType(descriptor)); + (*variables)["default"] = DefaultValue(descriptor); + (*variables)["capitalized_type"] = GetCapitalizedType(descriptor); + (*variables)["tag"] = SimpleItoa(WireFormat::MakeTag(descriptor)); + (*variables)["tag_size"] = SimpleItoa( + WireFormat::TagSize(descriptor->number(), descriptor->type())); + if (IsReferenceType(GetJavaType(descriptor))) { + (*variables)["null_check"] = + " if (value == null) {\n" + " throw new NullPointerException();\n" + " }\n"; + } else { + (*variables)["null_check"] = ""; + } + int fixed_size = FixedSize(descriptor->type()); + if (fixed_size != -1) { + (*variables)["fixed_size"] = SimpleItoa(fixed_size); + } +} +} // namespace + +// =================================================================== + +PrimitiveFieldGenerator:: +PrimitiveFieldGenerator(const FieldDescriptor* descriptor) + : descriptor_(descriptor) { + SetPrimitiveVariables(descriptor, &variables_); +} + +PrimitiveFieldGenerator::~PrimitiveFieldGenerator() {} + +void PrimitiveFieldGenerator:: +GenerateMembers(io::Printer* printer) const { + printer->Print(variables_, + "private boolean has$capitalized_name$;\n" + "private $type$ $name$_ = $default$;\n" + "public boolean has$capitalized_name$() { return has$capitalized_name$; }\n" + "public $type$ get$capitalized_name$() { return $name$_; }\n"); +} + +void PrimitiveFieldGenerator:: +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" + "$null_check$" + " result.has$capitalized_name$ = true;\n" + " result.$name$_ = value;\n" + " return this;\n" + "}\n" + "public Builder clear$capitalized_name$() {\n" + " result.has$capitalized_name$ = false;\n"); + if (descriptor_->cpp_type() == FieldDescriptor::CPPTYPE_STRING) { + // The default value is not a simple literal so we want to avoid executing + // it multiple times. Instead, get the default out of the default instance. + printer->Print(variables_, + " result.$name$_ = getDefaultInstance().get$capitalized_name$();\n"); + } else { + printer->Print(variables_, + " result.$name$_ = $default$;\n"); + } + printer->Print(variables_, + " return this;\n" + "}\n"); +} + +void PrimitiveFieldGenerator:: +GenerateMergingCode(io::Printer* printer) const { + printer->Print(variables_, + "if (other.has$capitalized_name$()) {\n" + " set$capitalized_name$(other.get$capitalized_name$());\n" + "}\n"); +} + +void PrimitiveFieldGenerator:: +GenerateBuildingCode(io::Printer* printer) const { + // Nothing to do here for primitive types. +} + +void PrimitiveFieldGenerator:: +GenerateParsingCode(io::Printer* printer) const { + printer->Print(variables_, + "set$capitalized_name$(input.read$capitalized_type$());\n"); +} + +void PrimitiveFieldGenerator:: +GenerateSerializationCode(io::Printer* printer) const { + printer->Print(variables_, + "if (has$capitalized_name$()) {\n" + " output.write$capitalized_type$($number$, get$capitalized_name$());\n" + "}\n"); +} + +void PrimitiveFieldGenerator:: +GenerateSerializedSizeCode(io::Printer* printer) const { + printer->Print(variables_, + "if (has$capitalized_name$()) {\n" + " size += com.google.protobuf.CodedOutputStream\n" + " .compute$capitalized_type$Size($number$, get$capitalized_name$());\n" + "}\n"); +} + +string PrimitiveFieldGenerator::GetBoxedType() const { + return BoxedPrimitiveTypeName(GetJavaType(descriptor_)); +} + +// =================================================================== + +RepeatedPrimitiveFieldGenerator:: +RepeatedPrimitiveFieldGenerator(const FieldDescriptor* descriptor) + : descriptor_(descriptor) { + SetPrimitiveVariables(descriptor, &variables_); +} + +RepeatedPrimitiveFieldGenerator::~RepeatedPrimitiveFieldGenerator() {} + +void RepeatedPrimitiveFieldGenerator:: +GenerateMembers(io::Printer* printer) const { + printer->Print(variables_, + "private java.util.List<$boxed_type$> $name$_ =\n" + " java.util.Collections.emptyList();\n" + "public java.util.List<$boxed_type$> 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"); + + if (descriptor_->options().packed() && + HasGeneratedMethods(descriptor_->containing_type())) { + printer->Print(variables_, + "private int $name$MemoizedSerializedSize;\n"); + } +} + +void RepeatedPrimitiveFieldGenerator:: +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<$boxed_type$> 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" + "$null_check$" + " result.$name$_.set(index, value);\n" + " return this;\n" + "}\n" + "public Builder add$capitalized_name$($type$ value) {\n" + "$null_check$" + " if (result.$name$_.isEmpty()) {\n" + " result.$name$_ = new java.util.ArrayList<$boxed_type$>();\n" + " }\n" + " result.$name$_.add(value);\n" + " return this;\n" + "}\n" + "public Builder addAll$capitalized_name$(\n" + " java.lang.Iterable<? extends $boxed_type$> values) {\n" + " if (result.$name$_.isEmpty()) {\n" + " result.$name$_ = new java.util.ArrayList<$boxed_type$>();\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 RepeatedPrimitiveFieldGenerator:: +GenerateMergingCode(io::Printer* printer) const { + printer->Print(variables_, + "if (!other.$name$_.isEmpty()) {\n" + " if (result.$name$_.isEmpty()) {\n" + " result.$name$_ = new java.util.ArrayList<$boxed_type$>();\n" + " }\n" + " result.$name$_.addAll(other.$name$_);\n" + "}\n"); +} + +void RepeatedPrimitiveFieldGenerator:: +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 RepeatedPrimitiveFieldGenerator:: +GenerateParsingCode(io::Printer* printer) const { + if (descriptor_->options().packed()) { + printer->Print(variables_, + "int length = input.readRawVarint32();\n" + "int limit = input.pushLimit(length);\n" + "while (input.getBytesUntilLimit() > 0) {\n" + " add$capitalized_name$(input.read$capitalized_type$());\n" + "}\n" + "input.popLimit(limit);\n"); + } else { + printer->Print(variables_, + "add$capitalized_name$(input.read$capitalized_type$());\n"); + } +} + +void RepeatedPrimitiveFieldGenerator:: +GenerateSerializationCode(io::Printer* printer) const { + if (descriptor_->options().packed()) { + printer->Print(variables_, + "if (get$capitalized_name$List().size() > 0) {\n" + " output.writeRawVarint32($tag$);\n" + " output.writeRawVarint32($name$MemoizedSerializedSize);\n" + "}\n" + "for ($type$ element : get$capitalized_name$List()) {\n" + " output.write$capitalized_type$NoTag(element);\n" + "}\n"); + } else { + printer->Print(variables_, + "for ($type$ element : get$capitalized_name$List()) {\n" + " output.write$capitalized_type$($number$, element);\n" + "}\n"); + } +} + +void RepeatedPrimitiveFieldGenerator:: +GenerateSerializedSizeCode(io::Printer* printer) const { + printer->Print(variables_, + "{\n" + " int dataSize = 0;\n"); + printer->Indent(); + + if (FixedSize(descriptor_->type()) == -1) { + printer->Print(variables_, + "for ($type$ element : get$capitalized_name$List()) {\n" + " dataSize += com.google.protobuf.CodedOutputStream\n" + " .compute$capitalized_type$SizeNoTag(element);\n" + "}\n"); + } else { + printer->Print(variables_, + "dataSize = $fixed_size$ * get$capitalized_name$List().size();\n"); + } + + printer->Print( + "size += dataSize;\n"); + + if (descriptor_->options().packed()) { + printer->Print(variables_, + "if (!get$capitalized_name$List().isEmpty()) {\n" + " size += $tag_size$;\n" + " size += com.google.protobuf.CodedOutputStream\n" + " .computeInt32SizeNoTag(dataSize);\n" + "}\n"); + } else { + printer->Print(variables_, + "size += $tag_size$ * get$capitalized_name$List().size();\n"); + } + + // cache the data size for packed fields. + if (descriptor_->options().packed()) { + printer->Print(variables_, + "$name$MemoizedSerializedSize = dataSize;\n"); + } + + printer->Outdent(); + printer->Print("}\n"); +} + +string RepeatedPrimitiveFieldGenerator::GetBoxedType() const { + return BoxedPrimitiveTypeName(GetJavaType(descriptor_)); +} + +} // namespace java +} // namespace compiler +} // namespace protobuf +} // namespace google |