/src/google/protobuf/compiler/java/java_string_field.cc
C++ | 726 lines | 551 code | 74 blank | 101 comment | 6 complexity | 9fef8ae7d348629d9936b3815698a377 MD5 | raw file
Possible License(s): BSD-3-Clause
- // 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)
- // Author: jonp@google.com (Jon Perlow)
- // Based on original Protocol Buffers design by
- // Sanjay Ghemawat, Jeff Dean, and others.
- #include <map>
- #include <string>
- #include <google/protobuf/compiler/java/java_string_field.h>
- #include <google/protobuf/compiler/java/java_doc_comment.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 {
- void SetPrimitiveVariables(const FieldDescriptor* descriptor,
- int messageBitIndex,
- int builderBitIndex,
- map<string, string>* variables) {
- (*variables)["name"] =
- UnderscoresToCamelCase(descriptor);
- (*variables)["capitalized_name"] =
- UnderscoresToCapitalizedCamelCase(descriptor);
- (*variables)["constant_name"] = FieldConstantName(descriptor);
- (*variables)["number"] = SimpleItoa(descriptor->number());
- (*variables)["empty_list"] = "com.google.protobuf.LazyStringArrayList.EMPTY";
- (*variables)["default"] = DefaultValue(descriptor);
- (*variables)["default_init"] = ("= " + DefaultValue(descriptor));
- (*variables)["capitalized_type"] = "String";
- (*variables)["tag"] = SimpleItoa(WireFormat::MakeTag(descriptor));
- (*variables)["tag_size"] = SimpleItoa(
- WireFormat::TagSize(descriptor->number(), GetType(descriptor)));
- (*variables)["null_check"] =
- " if (value == null) {\n"
- " throw new NullPointerException();\n"
- " }\n";
- // TODO(birdo): Add @deprecated javadoc when generating javadoc is supported
- // by the proto compiler
- (*variables)["deprecation"] = descriptor->options().deprecated()
- ? "@java.lang.Deprecated " : "";
- (*variables)["on_changed"] =
- HasDescriptorMethods(descriptor->containing_type()) ? "onChanged();" : "";
- // For singular messages and builders, one bit is used for the hasField bit.
- (*variables)["get_has_field_bit_message"] = GenerateGetBit(messageBitIndex);
- (*variables)["set_has_field_bit_message"] = GenerateSetBit(messageBitIndex);
- (*variables)["get_has_field_bit_builder"] = GenerateGetBit(builderBitIndex);
- (*variables)["set_has_field_bit_builder"] = GenerateSetBit(builderBitIndex);
- (*variables)["clear_has_field_bit_builder"] =
- GenerateClearBit(builderBitIndex);
- // For repated builders, one bit is used for whether the array is immutable.
- (*variables)["get_mutable_bit_builder"] = GenerateGetBit(builderBitIndex);
- (*variables)["set_mutable_bit_builder"] = GenerateSetBit(builderBitIndex);
- (*variables)["clear_mutable_bit_builder"] = GenerateClearBit(builderBitIndex);
- // For repeated fields, one bit is used for whether the array is immutable
- // in the parsing constructor.
- (*variables)["get_mutable_bit_parser"] =
- GenerateGetBitMutableLocal(builderBitIndex);
- (*variables)["set_mutable_bit_parser"] =
- GenerateSetBitMutableLocal(builderBitIndex);
- (*variables)["get_has_field_bit_from_local"] =
- GenerateGetBitFromLocal(builderBitIndex);
- (*variables)["set_has_field_bit_to_local"] =
- GenerateSetBitToLocal(messageBitIndex);
- }
- } // namespace
- // ===================================================================
- StringFieldGenerator::
- StringFieldGenerator(const FieldDescriptor* descriptor,
- int messageBitIndex,
- int builderBitIndex)
- : descriptor_(descriptor), messageBitIndex_(messageBitIndex),
- builderBitIndex_(builderBitIndex) {
- SetPrimitiveVariables(descriptor, messageBitIndex, builderBitIndex,
- &variables_);
- }
- StringFieldGenerator::~StringFieldGenerator() {}
- int StringFieldGenerator::GetNumBitsForMessage() const {
- return 1;
- }
- int StringFieldGenerator::GetNumBitsForBuilder() const {
- return 1;
- }
- // A note about how strings are handled. This code used to just store a String
- // in the Message. This had two issues:
- //
- // 1. It wouldn't roundtrip byte arrays that were not vaid UTF-8 encoded
- // strings, but rather fields that were raw bytes incorrectly marked
- // as strings in the proto file. This is common because in the proto1
- // syntax, string was the way to indicate bytes and C++ engineers can
- // easily make this mistake without affecting the C++ API. By converting to
- // strings immediately, some java code might corrupt these byte arrays as
- // it passes through a java server even if the field was never accessed by
- // application code.
- //
- // 2. There's a performance hit to converting between bytes and strings and
- // it many cases, the field is never even read by the application code. This
- // avoids unnecessary conversions in the common use cases.
- //
- // So now, the field for String is maintained as an Object reference which can
- // either store a String or a ByteString. The code uses an instanceof check
- // to see which one it has and converts to the other one if needed. It remembers
- // the last value requested (in a thread safe manner) as this is most likely
- // the one needed next. The thread safety is such that if two threads both
- // convert the field because the changes made by each thread were not visible to
- // the other, they may cause a conversion to happen more times than would
- // otherwise be necessary. This was deemed better than adding synchronization
- // overhead. It will not cause any corruption issues or affect the behavior of
- // the API. The instanceof check is also highly optimized in the JVM and we
- // decided it was better to reduce the memory overhead by not having two
- // separate fields but rather use dynamic type checking.
- //
- // For single fields, the logic for this is done inside the generated code. For
- // repeated fields, the logic is done in LazyStringArrayList and
- // UnmodifiableLazyStringList.
- void StringFieldGenerator::
- GenerateInterfaceMembers(io::Printer* printer) const {
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$boolean has$capitalized_name$();\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$java.lang.String get$capitalized_name$();\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$com.google.protobuf.ByteString\n"
- " get$capitalized_name$Bytes();\n");
- }
- void StringFieldGenerator::
- GenerateMembers(io::Printer* printer) const {
- printer->Print(variables_,
- "private java.lang.Object $name$_;\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public boolean has$capitalized_name$() {\n"
- " return $get_has_field_bit_message$;\n"
- "}\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public java.lang.String get$capitalized_name$() {\n"
- " java.lang.Object ref = $name$_;\n"
- " if (ref instanceof java.lang.String) {\n"
- " return (java.lang.String) ref;\n"
- " } else {\n"
- " com.google.protobuf.ByteString bs = \n"
- " (com.google.protobuf.ByteString) ref;\n"
- " java.lang.String s = bs.toStringUtf8();\n"
- " if (bs.isValidUtf8()) {\n"
- " $name$_ = s;\n"
- " }\n"
- " return s;\n"
- " }\n"
- "}\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public com.google.protobuf.ByteString\n"
- " get$capitalized_name$Bytes() {\n"
- " java.lang.Object ref = $name$_;\n"
- " if (ref instanceof java.lang.String) {\n"
- " com.google.protobuf.ByteString b = \n"
- " com.google.protobuf.ByteString.copyFromUtf8(\n"
- " (java.lang.String) ref);\n"
- " $name$_ = b;\n"
- " return b;\n"
- " } else {\n"
- " return (com.google.protobuf.ByteString) ref;\n"
- " }\n"
- "}\n");
- }
- void StringFieldGenerator::
- GenerateBuilderMembers(io::Printer* printer) const {
- printer->Print(variables_,
- "private java.lang.Object $name$_ $default_init$;\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public boolean has$capitalized_name$() {\n"
- " return $get_has_field_bit_builder$;\n"
- "}\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public java.lang.String get$capitalized_name$() {\n"
- " java.lang.Object ref = $name$_;\n"
- " if (!(ref instanceof java.lang.String)) {\n"
- " java.lang.String s = ((com.google.protobuf.ByteString) ref)\n"
- " .toStringUtf8();\n"
- " $name$_ = s;\n"
- " return s;\n"
- " } else {\n"
- " return (java.lang.String) ref;\n"
- " }\n"
- "}\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public com.google.protobuf.ByteString\n"
- " get$capitalized_name$Bytes() {\n"
- " java.lang.Object ref = $name$_;\n"
- " if (ref instanceof String) {\n"
- " com.google.protobuf.ByteString b = \n"
- " com.google.protobuf.ByteString.copyFromUtf8(\n"
- " (java.lang.String) ref);\n"
- " $name$_ = b;\n"
- " return b;\n"
- " } else {\n"
- " return (com.google.protobuf.ByteString) ref;\n"
- " }\n"
- "}\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public Builder set$capitalized_name$(\n"
- " java.lang.String value) {\n"
- "$null_check$"
- " $set_has_field_bit_builder$;\n"
- " $name$_ = value;\n"
- " $on_changed$\n"
- " return this;\n"
- "}\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public Builder clear$capitalized_name$() {\n"
- " $clear_has_field_bit_builder$;\n");
- // 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_,
- " $name$_ = getDefaultInstance().get$capitalized_name$();\n");
- printer->Print(variables_,
- " $on_changed$\n"
- " return this;\n"
- "}\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public Builder set$capitalized_name$Bytes(\n"
- " com.google.protobuf.ByteString value) {\n"
- "$null_check$"
- " $set_has_field_bit_builder$;\n"
- " $name$_ = value;\n"
- " $on_changed$\n"
- " return this;\n"
- "}\n");
- }
- void StringFieldGenerator::
- GenerateFieldBuilderInitializationCode(io::Printer* printer) const {
- // noop for primitives
- }
- void StringFieldGenerator::
- GenerateInitializationCode(io::Printer* printer) const {
- printer->Print(variables_, "$name$_ = $default$;\n");
- }
- void StringFieldGenerator::
- GenerateBuilderClearCode(io::Printer* printer) const {
- printer->Print(variables_,
- "$name$_ = $default$;\n"
- "$clear_has_field_bit_builder$;\n");
- }
- void StringFieldGenerator::
- GenerateMergingCode(io::Printer* printer) const {
- // Allow a slight breach of abstraction here in order to avoid forcing
- // all string fields to Strings when copying fields from a Message.
- printer->Print(variables_,
- "if (other.has$capitalized_name$()) {\n"
- " $set_has_field_bit_builder$;\n"
- " $name$_ = other.$name$_;\n"
- " $on_changed$\n"
- "}\n");
- }
- void StringFieldGenerator::
- GenerateBuildingCode(io::Printer* printer) const {
- printer->Print(variables_,
- "if ($get_has_field_bit_from_local$) {\n"
- " $set_has_field_bit_to_local$;\n"
- "}\n"
- "result.$name$_ = $name$_;\n");
- }
- void StringFieldGenerator::
- GenerateParsingCode(io::Printer* printer) const {
- printer->Print(variables_,
- "$set_has_field_bit_message$;\n"
- "$name$_ = input.readBytes();\n");
- }
- void StringFieldGenerator::
- GenerateParsingDoneCode(io::Printer* printer) const {
- // noop for strings.
- }
- void StringFieldGenerator::
- GenerateSerializationCode(io::Printer* printer) const {
- printer->Print(variables_,
- "if ($get_has_field_bit_message$) {\n"
- " output.writeBytes($number$, get$capitalized_name$Bytes());\n"
- "}\n");
- }
- void StringFieldGenerator::
- GenerateSerializedSizeCode(io::Printer* printer) const {
- printer->Print(variables_,
- "if ($get_has_field_bit_message$) {\n"
- " size += com.google.protobuf.CodedOutputStream\n"
- " .computeBytesSize($number$, get$capitalized_name$Bytes());\n"
- "}\n");
- }
- void StringFieldGenerator::
- GenerateEqualsCode(io::Printer* printer) const {
- printer->Print(variables_,
- "result = result && get$capitalized_name$()\n"
- " .equals(other.get$capitalized_name$());\n");
- }
- void StringFieldGenerator::
- GenerateHashCode(io::Printer* printer) const {
- printer->Print(variables_,
- "hash = (37 * hash) + $constant_name$;\n");
- printer->Print(variables_,
- "hash = (53 * hash) + get$capitalized_name$().hashCode();\n");
- }
- string StringFieldGenerator::GetBoxedType() const {
- return "java.lang.String";
- }
- // ===================================================================
- RepeatedStringFieldGenerator::
- RepeatedStringFieldGenerator(const FieldDescriptor* descriptor,
- int messageBitIndex,
- int builderBitIndex)
- : descriptor_(descriptor), messageBitIndex_(messageBitIndex),
- builderBitIndex_(builderBitIndex) {
- SetPrimitiveVariables(descriptor, messageBitIndex, builderBitIndex,
- &variables_);
- }
- RepeatedStringFieldGenerator::~RepeatedStringFieldGenerator() {}
- int RepeatedStringFieldGenerator::GetNumBitsForMessage() const {
- return 0;
- }
- int RepeatedStringFieldGenerator::GetNumBitsForBuilder() const {
- return 1;
- }
- void RepeatedStringFieldGenerator::
- GenerateInterfaceMembers(io::Printer* printer) const {
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$java.util.List<java.lang.String>\n"
- "get$capitalized_name$List();\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$int get$capitalized_name$Count();\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$java.lang.String get$capitalized_name$(int index);\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$com.google.protobuf.ByteString\n"
- " get$capitalized_name$Bytes(int index);\n");
- }
- void RepeatedStringFieldGenerator::
- GenerateMembers(io::Printer* printer) const {
- printer->Print(variables_,
- "private com.google.protobuf.LazyStringList $name$_;\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public java.util.List<java.lang.String>\n"
- " get$capitalized_name$List() {\n"
- " return $name$_;\n" // note: unmodifiable list
- "}\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public int get$capitalized_name$Count() {\n"
- " return $name$_.size();\n"
- "}\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public java.lang.String get$capitalized_name$(int index) {\n"
- " return $name$_.get(index);\n"
- "}\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public com.google.protobuf.ByteString\n"
- " get$capitalized_name$Bytes(int index) {\n"
- " return $name$_.getByteString(index);\n"
- "}\n");
- if (descriptor_->options().packed() &&
- HasGeneratedMethods(descriptor_->containing_type())) {
- printer->Print(variables_,
- "private int $name$MemoizedSerializedSize = -1;\n");
- }
- }
- void RepeatedStringFieldGenerator::
- GenerateBuilderMembers(io::Printer* printer) const {
- // One field is the list and the bit field keeps track of whether the
- // list is immutable. If it's immutable, the invariant is that it must
- // either an instance of Collections.emptyList() or it's an ArrayList
- // wrapped in a Collections.unmodifiableList() wrapper and nobody else has
- // a refererence to the underlying ArrayList. This invariant allows us to
- // share instances of lists between protocol buffers avoiding expensive
- // memory allocations. Note, immutable is a strong guarantee here -- not
- // just that the list cannot be modified via the reference but that the
- // list can never be modified.
- printer->Print(variables_,
- "private com.google.protobuf.LazyStringList $name$_ = $empty_list$;\n");
- printer->Print(variables_,
- "private void ensure$capitalized_name$IsMutable() {\n"
- " if (!$get_mutable_bit_builder$) {\n"
- " $name$_ = new com.google.protobuf.LazyStringArrayList($name$_);\n"
- " $set_mutable_bit_builder$;\n"
- " }\n"
- "}\n");
- // 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.
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public java.util.List<java.lang.String>\n"
- " get$capitalized_name$List() {\n"
- " return java.util.Collections.unmodifiableList($name$_);\n"
- "}\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public int get$capitalized_name$Count() {\n"
- " return $name$_.size();\n"
- "}\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public java.lang.String get$capitalized_name$(int index) {\n"
- " return $name$_.get(index);\n"
- "}\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public com.google.protobuf.ByteString\n"
- " get$capitalized_name$Bytes(int index) {\n"
- " return $name$_.getByteString(index);\n"
- "}\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public Builder set$capitalized_name$(\n"
- " int index, java.lang.String value) {\n"
- "$null_check$"
- " ensure$capitalized_name$IsMutable();\n"
- " $name$_.set(index, value);\n"
- " $on_changed$\n"
- " return this;\n"
- "}\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public Builder add$capitalized_name$(\n"
- " java.lang.String value) {\n"
- "$null_check$"
- " ensure$capitalized_name$IsMutable();\n"
- " $name$_.add(value);\n"
- " $on_changed$\n"
- " return this;\n"
- "}\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public Builder addAll$capitalized_name$(\n"
- " java.lang.Iterable<java.lang.String> values) {\n"
- " ensure$capitalized_name$IsMutable();\n"
- " super.addAll(values, $name$_);\n"
- " $on_changed$\n"
- " return this;\n"
- "}\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public Builder clear$capitalized_name$() {\n"
- " $name$_ = $empty_list$;\n"
- " $clear_mutable_bit_builder$;\n"
- " $on_changed$\n"
- " return this;\n"
- "}\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public Builder add$capitalized_name$Bytes(\n"
- " com.google.protobuf.ByteString value) {\n"
- "$null_check$"
- " ensure$capitalized_name$IsMutable();\n"
- " $name$_.add(value);\n"
- " $on_changed$\n"
- " return this;\n"
- "}\n");
- }
- void RepeatedStringFieldGenerator::
- GenerateFieldBuilderInitializationCode(io::Printer* printer) const {
- // noop for primitives
- }
- void RepeatedStringFieldGenerator::
- GenerateInitializationCode(io::Printer* printer) const {
- printer->Print(variables_, "$name$_ = $empty_list$;\n");
- }
- void RepeatedStringFieldGenerator::
- GenerateBuilderClearCode(io::Printer* printer) const {
- printer->Print(variables_,
- "$name$_ = $empty_list$;\n"
- "$clear_mutable_bit_builder$;\n");
- }
- void RepeatedStringFieldGenerator::
- GenerateMergingCode(io::Printer* printer) const {
- // The code below does two optimizations:
- // 1. If the other list is empty, there's nothing to do. This ensures we
- // don't allocate a new array if we already have an immutable one.
- // 2. If the other list is non-empty and our current list is empty, we can
- // reuse the other list which is guaranteed to be immutable.
- printer->Print(variables_,
- "if (!other.$name$_.isEmpty()) {\n"
- " if ($name$_.isEmpty()) {\n"
- " $name$_ = other.$name$_;\n"
- " $clear_mutable_bit_builder$;\n"
- " } else {\n"
- " ensure$capitalized_name$IsMutable();\n"
- " $name$_.addAll(other.$name$_);\n"
- " }\n"
- " $on_changed$\n"
- "}\n");
- }
- void RepeatedStringFieldGenerator::
- GenerateBuildingCode(io::Printer* printer) const {
- // The code below ensures that the result has an immutable list. If our
- // list is immutable, we can just reuse it. If not, we make it immutable.
- printer->Print(variables_,
- "if ($get_mutable_bit_builder$) {\n"
- " $name$_ = new com.google.protobuf.UnmodifiableLazyStringList(\n"
- " $name$_);\n"
- " $clear_mutable_bit_builder$;\n"
- "}\n"
- "result.$name$_ = $name$_;\n");
- }
- void RepeatedStringFieldGenerator::
- GenerateParsingCode(io::Printer* printer) const {
- printer->Print(variables_,
- "if (!$get_mutable_bit_parser$) {\n"
- " $name$_ = new com.google.protobuf.LazyStringArrayList();\n"
- " $set_mutable_bit_parser$;\n"
- "}\n"
- "$name$_.add(input.readBytes());\n");
- }
- void RepeatedStringFieldGenerator::
- GenerateParsingCodeFromPacked(io::Printer* printer) const {
- printer->Print(variables_,
- "int length = input.readRawVarint32();\n"
- "int limit = input.pushLimit(length);\n"
- "if (!$get_mutable_bit_parser$ && input.getBytesUntilLimit() > 0) {\n"
- " $name$_ = new com.google.protobuf.LazyStringArrayList();\n"
- " $set_mutable_bit_parser$;\n"
- "}\n"
- "while (input.getBytesUntilLimit() > 0) {\n"
- " $name$.add(input.read$capitalized_type$());\n"
- "}\n"
- "input.popLimit(limit);\n");
- }
- void RepeatedStringFieldGenerator::
- GenerateParsingDoneCode(io::Printer* printer) const {
- printer->Print(variables_,
- "if ($get_mutable_bit_parser$) {\n"
- " $name$_ = new com.google.protobuf.UnmodifiableLazyStringList($name$_);\n"
- "}\n");
- }
- void RepeatedStringFieldGenerator::
- 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 (int i = 0; i < $name$_.size(); i++) {\n"
- " output.write$capitalized_type$NoTag($name$_.get(i));\n"
- "}\n");
- } else {
- printer->Print(variables_,
- "for (int i = 0; i < $name$_.size(); i++) {\n"
- " output.writeBytes($number$, $name$_.getByteString(i));\n"
- "}\n");
- }
- }
- void RepeatedStringFieldGenerator::
- GenerateSerializedSizeCode(io::Printer* printer) const {
- printer->Print(variables_,
- "{\n"
- " int dataSize = 0;\n");
- printer->Indent();
- printer->Print(variables_,
- "for (int i = 0; i < $name$_.size(); i++) {\n"
- " dataSize += com.google.protobuf.CodedOutputStream\n"
- " .computeBytesSizeNoTag($name$_.getByteString(i));\n"
- "}\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");
- }
- void RepeatedStringFieldGenerator::
- GenerateEqualsCode(io::Printer* printer) const {
- printer->Print(variables_,
- "result = result && get$capitalized_name$List()\n"
- " .equals(other.get$capitalized_name$List());\n");
- }
- void RepeatedStringFieldGenerator::
- GenerateHashCode(io::Printer* printer) const {
- printer->Print(variables_,
- "if (get$capitalized_name$Count() > 0) {\n"
- " hash = (37 * hash) + $constant_name$;\n"
- " hash = (53 * hash) + get$capitalized_name$List().hashCode();\n"
- "}\n");
- }
- string RepeatedStringFieldGenerator::GetBoxedType() const {
- return "String";
- }
- } // namespace java
- } // namespace compiler
- } // namespace protobuf
- } // namespace google