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diff --git a/src/google/protobuf/compiler/javanano/javanano_primitive_field.cc b/src/google/protobuf/compiler/javanano/javanano_primitive_field.cc
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+// 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/javanano/javanano_primitive_field.h>
+#include <google/protobuf/stubs/common.h>
+#include <google/protobuf/compiler/javanano/javanano_helpers.h>
+#include <google/protobuf/io/printer.h>
+#include <google/protobuf/wire_format.h>
+#include <google/protobuf/stubs/strutil.h>
+#include <google/protobuf/stubs/substitute.h>
+
+namespace google {
+namespace protobuf {
+namespace compiler {
+namespace javanano {
+
+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 "byte[]";
+ 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 false;
+ 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;
+}
+
+bool IsArrayType(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 false;
+ case JAVATYPE_BYTES : return true;
+ case JAVATYPE_ENUM : return false;
+ case JAVATYPE_MESSAGE: return false;
+
+ // 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;
+}
+
+// Return true if the type is a that has variable length
+// for instance String's.
+bool IsVariableLenType(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 false;
+ 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;
+}
+
+bool AllAscii(const string& text) {
+ for (int i = 0; i < text.size(); i++) {
+ if ((text[i] & 0x80) != 0) {
+ return false;
+ }
+ }
+ return true;
+}
+
+void SetPrimitiveVariables(const FieldDescriptor* descriptor, const Params params,
+ map<string, string>* variables) {
+ (*variables)["name"] =
+ UnderscoresToCamelCase(descriptor);
+ (*variables)["capitalized_name"] =
+ UnderscoresToCapitalizedCamelCase(descriptor);
+ (*variables)["number"] = SimpleItoa(descriptor->number());
+ (*variables)["type"] = PrimitiveTypeName(GetJavaType(descriptor));
+ (*variables)["default"] = DefaultValue(params, descriptor);
+ (*variables)["default_constant"] = FieldDefaultConstantName(descriptor);
+ // For C++-string types (string and bytes), we might need to have
+ // the generated code do the unicode decoding (see comments in
+ // InternalNano.java for gory details.). We would like to do this
+ // once into a "private static final" field and re-use that from
+ // then on.
+ if (descriptor->cpp_type() == FieldDescriptor::CPPTYPE_STRING &&
+ !descriptor->default_value_string().empty()) {
+ string default_value;
+ if (descriptor->type() == FieldDescriptor::TYPE_BYTES) {
+ default_value = strings::Substitute(
+ "com.google.protobuf.nano.InternalNano.bytesDefaultValue(\"$0\")",
+ CEscape(descriptor->default_value_string()));
+ } else {
+ if (AllAscii(descriptor->default_value_string())) {
+ // All chars are ASCII. In this case CEscape() works fine.
+ default_value = "\"" + CEscape(descriptor->default_value_string()) + "\"";
+ } else {
+ default_value = strings::Substitute(
+ "com.google.protobuf.nano.InternalNano.stringDefaultValue(\"$0\")",
+ CEscape(descriptor->default_value_string()));
+ }
+ }
+ (*variables)["default_constant_value"] = default_value;
+ }
+ (*variables)["boxed_type"] = BoxedPrimitiveTypeName(GetJavaType(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);
+ }
+ (*variables)["message_name"] = descriptor->containing_type()->name();
+ (*variables)["empty_array_name"] = EmptyArrayName(params, descriptor);
+}
+} // namespace
+
+// ===================================================================
+
+PrimitiveFieldGenerator::
+PrimitiveFieldGenerator(const FieldDescriptor* descriptor, const Params& params)
+ : FieldGenerator(params), descriptor_(descriptor) {
+ SetPrimitiveVariables(descriptor, params, &variables_);
+}
+
+PrimitiveFieldGenerator::~PrimitiveFieldGenerator() {}
+
+void PrimitiveFieldGenerator::
+GenerateMembers(io::Printer* printer) const {
+ if (variables_.find("default_constant_value") != variables_.end()) {
+ // Those primitive types that need a saved default.
+ printer->Print(variables_,
+ "private static final $type$ $default_constant$ = $default_constant_value$;\n");
+ if (descriptor_->type() == FieldDescriptor::TYPE_BYTES) {
+ printer->Print(variables_,
+ "public $type$ $name$ = $default$.clone();\n");
+ } else {
+ printer->Print(variables_,
+ "public $type$ $name$ = $default$;\n");
+ }
+ } else {
+ printer->Print(variables_,
+ "public $type$ $name$ = $default$;\n");
+ }
+}
+
+void PrimitiveFieldGenerator::
+GenerateMergingCode(io::Printer* printer) const {
+ printer->Print(variables_, "$name$ = other.$name$;\n");
+}
+
+void PrimitiveFieldGenerator::
+GenerateParsingCode(io::Printer* printer) const {
+ printer->Print(variables_,
+ "$name$ = input.read$capitalized_type$();\n");
+}
+
+void PrimitiveFieldGenerator::
+GenerateSerializationCode(io::Printer* printer) const {
+ if (descriptor_->is_required()) {
+ printer->Print(variables_,
+ "output.write$capitalized_type$($number$, $name$);\n");
+ } else {
+ if (IsArrayType(GetJavaType(descriptor_))) {
+ printer->Print(variables_,
+ "if (!java.util.Arrays.equals($name$, $default$)) {\n");
+ } else if (IsReferenceType(GetJavaType(descriptor_))) {
+ printer->Print(variables_,
+ "if (!$name$.equals($default$)) {\n");
+ } else {
+ printer->Print(variables_,
+ "if ($name$ != $default$) {\n");
+ }
+
+ printer->Print(variables_,
+ " output.write$capitalized_type$($number$, $name$);\n"
+ "}\n");
+ }
+}
+
+void PrimitiveFieldGenerator::
+GenerateSerializedSizeCode(io::Printer* printer) const {
+ if (descriptor_->is_required()) {
+ printer->Print(variables_,
+ "size += com.google.protobuf.nano.CodedOutputByteBufferNano\n"
+ " .compute$capitalized_type$Size($number$, $name$);\n");
+ } else {
+ if (IsArrayType(GetJavaType(descriptor_))) {
+ printer->Print(variables_,
+ "if (!java.util.Arrays.equals($name$, $default$)) {\n");
+ } else if (IsReferenceType(GetJavaType(descriptor_))) {
+ printer->Print(variables_,
+ "if (!$name$.equals($default$)) {\n");
+ } else {
+ printer->Print(variables_,
+ "if ($name$ != $default$) {\n");
+ }
+
+ printer->Print(variables_,
+ " size += com.google.protobuf.nano.CodedOutputByteBufferNano\n"
+ " .compute$capitalized_type$Size($number$, $name$);\n"
+ "}\n");
+ }
+}
+
+string PrimitiveFieldGenerator::GetBoxedType() const {
+ return BoxedPrimitiveTypeName(GetJavaType(descriptor_));
+}
+
+// ===================================================================
+
+RepeatedPrimitiveFieldGenerator::
+RepeatedPrimitiveFieldGenerator(const FieldDescriptor* descriptor, const Params& params)
+ : FieldGenerator(params), descriptor_(descriptor) {
+ SetPrimitiveVariables(descriptor, params, &variables_);
+}
+
+RepeatedPrimitiveFieldGenerator::~RepeatedPrimitiveFieldGenerator() {}
+
+void RepeatedPrimitiveFieldGenerator::
+GenerateMembers(io::Printer* printer) const {
+ printer->Print(variables_,
+ "public $type$[] $name$ = $default$;\n");
+ if (descriptor_->options().packed()) {
+ printer->Print(variables_,
+ "private int $name$MemoizedSerializedSize;\n");
+ }
+}
+
+void RepeatedPrimitiveFieldGenerator::
+GenerateMergingCode(io::Printer* printer) const {
+ printer->Print(variables_,
+ "if (other.$name$.length > 0) {\n"
+ " $type$[] merged = java.util.Arrays.copyOf(result.$name$, result.$name$.length + other.$name$.length);\n"
+ " java.lang.System.arraycopy(other.$name$, 0, merged, results.$name$.length, other.$name$.length);\n"
+ " result.$name$ = merged;\n"
+ "}\n");
+}
+
+void RepeatedPrimitiveFieldGenerator::
+GenerateParsingCode(io::Printer* printer) const {
+ // First, figure out the length of the array, then parse.
+ if (descriptor_->options().packed()) {
+ printer->Print(variables_,
+ "int length = input.readRawVarint32();\n"
+ "int limit = input.pushLimit(length);\n"
+ "// First pass to compute array length.\n"
+ "int arrayLength = 0;\n"
+ "int startPos = input.getPosition();\n"
+ "while (input.getBytesUntilLimit() > 0) {\n"
+ " input.read$capitalized_type$();\n"
+ " arrayLength++;\n"
+ "}\n"
+ "input.rewindToPosition(startPos);\n"
+ "$name$ = new $type$[arrayLength];\n"
+ "for (int i = 0; i < arrayLength; i++) {\n"
+ " $name$[i] = input.read$capitalized_type$();\n"
+ "}\n"
+ "input.popLimit(limit);\n");
+ } else {
+ printer->Print(variables_,
+ "int arrayLength = com.google.protobuf.nano.WireFormatNano.getRepeatedFieldArrayLength(input, $tag$);\n"
+ "int i = $name$.length;\n"
+ "$name$ = java.util.Arrays.copyOf($name$, $name$.length + arrayLength);\n"
+ "for (; i < $name$.length - 1; i++) {\n"
+ " $name$[i] = input.read$capitalized_type$();\n"
+ " input.readTag();\n"
+ "}\n"
+ "// Last one without readTag.\n"
+ "$name$[i] = input.read$capitalized_type$();\n");
+ }
+}
+
+void RepeatedPrimitiveFieldGenerator::
+GenerateSerializationCode(io::Printer* printer) const {
+ if (descriptor_->options().packed()) {
+ printer->Print(variables_,
+ "if ($name$.length > 0) {\n"
+ " output.writeRawVarint32($tag$);\n"
+ " output.writeRawVarint32($name$MemoizedSerializedSize);\n"
+ "}\n");
+ printer->Print(variables_,
+ "for ($type$ element : $name$) {\n"
+ " output.write$capitalized_type$NoTag(element);\n"
+ "}\n");
+ } else {
+ printer->Print(variables_,
+ "for ($type$ element : $name$) {\n"
+ " output.write$capitalized_type$($number$, element);\n"
+ "}\n");
+ }
+}
+
+void RepeatedPrimitiveFieldGenerator::
+GenerateSerializedSizeCode(io::Printer* printer) const {
+ printer->Print(variables_,
+ "if ($name$.length > 0) {\n");
+ printer->Indent();
+
+ if (FixedSize(descriptor_->type()) == -1) {
+ printer->Print(variables_,
+ "int dataSize = 0;\n"
+ "for ($type$ element : $name$) {\n"
+ " dataSize += com.google.protobuf.nano.CodedOutputByteBufferNano\n"
+ " .compute$capitalized_type$SizeNoTag(element);\n"
+ "}\n");
+ } else {
+ printer->Print(variables_,
+ "int dataSize = $fixed_size$ * $name$.length;\n");
+ }
+
+ printer->Print(
+ "size += dataSize;\n");
+ if (descriptor_->options().packed()) {
+ // cache the data size for packed fields.
+ printer->Print(variables_,
+ "size += $tag_size$;\n"
+ "size += com.google.protobuf.nano.CodedOutputByteBufferNano\n"
+ " .computeRawVarint32Size(dataSize);\n"
+ "$name$MemoizedSerializedSize = dataSize;\n");
+ } else {
+ printer->Print(variables_,
+ "size += $tag_size$ * $name$.length;\n");
+ }
+
+ printer->Outdent();
+
+ // set cached size to 0 for empty packed fields.
+ if (descriptor_->options().packed()) {
+ printer->Print(variables_,
+ "} else {\n"
+ " $name$MemoizedSerializedSize = 0;\n"
+ "}\n");
+ } else {
+ printer->Print(
+ "}\n");
+ }
+}
+
+string RepeatedPrimitiveFieldGenerator::GetBoxedType() const {
+ return BoxedPrimitiveTypeName(GetJavaType(descriptor_));
+}
+
+} // namespace javanano
+} // namespace compiler
+} // namespace protobuf
+} // namespace google