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Unified Diff: third_party/protobuf/src/google/protobuf/compiler/java/java_string_field_lite.cc

Issue 1322483002: Revert https://codereview.chromium.org/1291903002 (protobuf roll). (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 5 years, 4 months ago
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Index: third_party/protobuf/src/google/protobuf/compiler/java/java_string_field_lite.cc
diff --git a/third_party/protobuf/src/google/protobuf/compiler/java/java_string_field_lite.cc b/third_party/protobuf/src/google/protobuf/compiler/java/java_string_field_lite.cc
deleted file mode 100644
index 51bb245c493ea055690e892978b1f8e96c1a486b..0000000000000000000000000000000000000000
--- a/third_party/protobuf/src/google/protobuf/compiler/java/java_string_field_lite.cc
+++ /dev/null
@@ -1,1013 +0,0 @@
-// Protocol Buffers - Google's data interchange format
-// Copyright 2008 Google Inc. All rights reserved.
-// https://developers.google.com/protocol-buffers/
-//
-// 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/stubs/common.h>
-#include <google/protobuf/compiler/java/java_context.h>
-#include <google/protobuf/compiler/java/java_doc_comment.h>
-#include <google/protobuf/compiler/java/java_helpers.h>
-#include <google/protobuf/compiler/java/java_name_resolver.h>
-#include <google/protobuf/compiler/java/java_string_field_lite.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,
- const FieldGeneratorInfo* info,
- ClassNameResolver* name_resolver,
- map<string, string>* variables) {
- SetCommonFieldVariables(descriptor, info, variables);
-
- (*variables)["empty_list"] = "emptyLazyStringArrayList()";
-
- (*variables)["default"] = ImmutableDefaultValue(descriptor, name_resolver);
- (*variables)["default_init"] =
- "= " + ImmutableDefaultValue(descriptor, name_resolver);
- (*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();" : "";
-
- if (SupportFieldPresence(descriptor->file())) {
- // For singular messages and builders, one bit is used for the hasField bit.
- (*variables)["get_has_field_bit_message"] = GenerateGetBit(messageBitIndex);
-
- // Note that these have a trailing ";".
- (*variables)["set_has_field_bit_message"] =
- GenerateSetBit(messageBitIndex) + ";";
- (*variables)["clear_has_field_bit_message"] =
- GenerateClearBit(messageBitIndex) + ";";
-
- (*variables)["is_field_present_message"] = GenerateGetBit(messageBitIndex);
- } else {
- (*variables)["set_has_field_bit_message"] = "";
- (*variables)["clear_has_field_bit_message"] = "";
-
- (*variables)["is_field_present_message"] =
- "!get" + (*variables)["capitalized_name"] + "Bytes().isEmpty()";
- }
-
- // For repeated builders, the underlying list tracks mutability state.
- (*variables)["is_mutable"] = (*variables)["name"] + "_.isModifiable()";
-
- (*variables)["get_has_field_bit_from_local"] =
- GenerateGetBitFromLocal(builderBitIndex);
- (*variables)["set_has_field_bit_to_local"] =
- GenerateSetBitToLocal(messageBitIndex);
-}
-
-bool CheckUtf8(const FieldDescriptor* descriptor) {
- return descriptor->file()->options().java_string_check_utf8();
-}
-
-} // namespace
-
-// ===================================================================
-
-ImmutableStringFieldLiteGenerator::
-ImmutableStringFieldLiteGenerator(const FieldDescriptor* descriptor,
- int messageBitIndex,
- int builderBitIndex,
- Context* context)
- : descriptor_(descriptor), messageBitIndex_(messageBitIndex),
- builderBitIndex_(builderBitIndex), context_(context),
- name_resolver_(context->GetNameResolver()) {
- SetPrimitiveVariables(descriptor, messageBitIndex, builderBitIndex,
- context->GetFieldGeneratorInfo(descriptor),
- name_resolver_, &variables_);
-}
-
-ImmutableStringFieldLiteGenerator::~ImmutableStringFieldLiteGenerator() {}
-
-int ImmutableStringFieldLiteGenerator::GetNumBitsForMessage() const {
- return 1;
-}
-
-int ImmutableStringFieldLiteGenerator::GetNumBitsForBuilder() const {
- return 0;
-}
-
-// 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 ImmutableStringFieldLiteGenerator::
-GenerateInterfaceMembers(io::Printer* printer) const {
- if (SupportFieldPresence(descriptor_->file())) {
- 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 ImmutableStringFieldLiteGenerator::
-GenerateMembers(io::Printer* printer) const {
- printer->Print(variables_,
- "private java.lang.Object $name$_;\n");
- PrintExtraFieldInfo(variables_, printer);
-
- if (SupportFieldPresence(descriptor_->file())) {
- 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 (CheckUtf8(descriptor_)) {
- printer->Print(variables_,
- " $name$_ = s;\n");
- } else {
- printer->Print(variables_,
- " if (bs.isValidUtf8()) {\n"
- " $name$_ = s;\n"
- " }\n");
- }
- printer->Print(variables_,
- " 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");
-
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "private void set$capitalized_name$(\n"
- " java.lang.String value) {\n"
- "$null_check$"
- " $set_has_field_bit_message$\n"
- " $name$_ = value;\n"
- "}\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "private void clear$capitalized_name$() {\n"
- " $clear_has_field_bit_message$\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.
- " $name$_ = getDefaultInstance().get$capitalized_name$();\n"
- "}\n");
-
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "private void set$capitalized_name$Bytes(\n"
- " com.google.protobuf.ByteString value) {\n"
- "$null_check$");
- if (CheckUtf8(descriptor_)) {
- printer->Print(variables_,
- " checkByteStringIsUtf8(value);\n");
- }
- printer->Print(variables_,
- " $set_has_field_bit_message$\n"
- " $name$_ = value;\n"
- "}\n");
-}
-
-void ImmutableStringFieldLiteGenerator::
-GenerateBuilderMembers(io::Printer* printer) const {
- if (SupportFieldPresence(descriptor_->file())) {
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public boolean has$capitalized_name$() {\n"
- " return instance.has$capitalized_name$();\n"
- "}\n");
- }
-
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public java.lang.String get$capitalized_name$() {\n"
- " return instance.get$capitalized_name$();\n"
- "}\n");
-
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public com.google.protobuf.ByteString\n"
- " get$capitalized_name$Bytes() {\n"
- " return instance.get$capitalized_name$Bytes();\n"
- "}\n");
-
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public Builder set$capitalized_name$(\n"
- " java.lang.String value) {\n"
- " copyOnWrite();\n"
- " instance.set$capitalized_name$(value);\n"
- " return this;\n"
- "}\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public Builder clear$capitalized_name$() {\n"
- " copyOnWrite();\n"
- " instance.clear$capitalized_name$();\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"
- " copyOnWrite();\n"
- " instance.set$capitalized_name$Bytes(value);\n"
- " return this;\n"
- "}\n");
-}
-
-void ImmutableStringFieldLiteGenerator::
-GenerateFieldBuilderInitializationCode(io::Printer* printer) const {
- // noop for strings
-}
-
-void ImmutableStringFieldLiteGenerator::
-GenerateInitializationCode(io::Printer* printer) const {
- printer->Print(variables_, "$name$_ = $default$;\n");
-}
-
-void ImmutableStringFieldLiteGenerator::
-GenerateMergingCode(io::Printer* printer) const {
- if (SupportFieldPresence(descriptor_->file())) {
- // 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"
- " $set_has_field_bit_message$\n"
- " $name$_ = other.$name$_;\n"
- " $on_changed$\n"
- "}\n");
- } else {
- printer->Print(variables_,
- "if (!other.get$capitalized_name$().isEmpty()) {\n"
- " $name$_ = other.$name$_;\n"
- " $on_changed$\n"
- "}\n");
- }
-}
-
-void ImmutableStringFieldLiteGenerator::
-GenerateDynamicMethodMakeImmutableCode(io::Printer* printer) const {
- // noop for scalars
-}
-
-void ImmutableStringFieldLiteGenerator::
-GenerateParsingCode(io::Printer* printer) const {
- if (CheckUtf8(descriptor_)) {
- printer->Print(variables_,
- "String s = input.readStringRequireUtf8();\n"
- "$set_has_field_bit_message$\n"
- "$name$_ = s;\n");
- } else if (!HasDescriptorMethods(descriptor_->file())) {
- // Lite runtime should attempt to reduce allocations by attempting to
- // construct the string directly from the input stream buffer. This avoids
- // spurious intermediary ByteString allocations, cutting overall allocations
- // in half.
- printer->Print(variables_,
- "String s = input.readString();\n"
- "$set_has_field_bit_message$\n"
- "$name$_ = s;\n");
- } else {
- printer->Print(variables_,
- "com.google.protobuf.ByteString bs = input.readBytes();\n"
- "$set_has_field_bit_message$\n"
- "$name$_ = bs;\n");
- }
-}
-
-void ImmutableStringFieldLiteGenerator::
-GenerateParsingDoneCode(io::Printer* printer) const {
- // noop for strings
-}
-
-void ImmutableStringFieldLiteGenerator::
-GenerateSerializationCode(io::Printer* printer) const {
- printer->Print(variables_,
- "if ($is_field_present_message$) {\n"
- " output.writeBytes($number$, get$capitalized_name$Bytes());\n"
- "}\n");
-}
-
-void ImmutableStringFieldLiteGenerator::
-GenerateSerializedSizeCode(io::Printer* printer) const {
- printer->Print(variables_,
- "if ($is_field_present_message$) {\n"
- " size += com.google.protobuf.CodedOutputStream\n"
- " .computeBytesSize($number$, get$capitalized_name$Bytes());\n"
- "}\n");
-}
-
-void ImmutableStringFieldLiteGenerator::
-GenerateEqualsCode(io::Printer* printer) const {
- printer->Print(variables_,
- "result = result && get$capitalized_name$()\n"
- " .equals(other.get$capitalized_name$());\n");
-}
-
-void ImmutableStringFieldLiteGenerator::
-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 ImmutableStringFieldLiteGenerator::GetBoxedType() const {
- return "java.lang.String";
-}
-
-// ===================================================================
-
-ImmutableStringOneofFieldLiteGenerator::
-ImmutableStringOneofFieldLiteGenerator(const FieldDescriptor* descriptor,
- int messageBitIndex,
- int builderBitIndex,
- Context* context)
- : ImmutableStringFieldLiteGenerator(
- descriptor, messageBitIndex, builderBitIndex, context) {
- const OneofGeneratorInfo* info =
- context->GetOneofGeneratorInfo(descriptor->containing_oneof());
- SetCommonOneofVariables(descriptor, info, &variables_);
-}
-
-ImmutableStringOneofFieldLiteGenerator::
-~ImmutableStringOneofFieldLiteGenerator() {}
-
-void ImmutableStringOneofFieldLiteGenerator::
-GenerateMembers(io::Printer* printer) const {
- PrintExtraFieldInfo(variables_, printer);
-
- if (SupportFieldPresence(descriptor_->file())) {
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public boolean has$capitalized_name$() {\n"
- " return $has_oneof_case_message$;\n"
- "}\n");
- }
-
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public java.lang.String get$capitalized_name$() {\n"
- " java.lang.Object ref $default_init$;\n"
- " if ($has_oneof_case_message$) {\n"
- " ref = $oneof_name$_;\n"
- " }\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 (CheckUtf8(descriptor_)) {
- printer->Print(variables_,
- " if ($has_oneof_case_message$) {\n"
- " $oneof_name$_ = s;\n"
- " }\n");
- } else {
- printer->Print(variables_,
- " if (bs.isValidUtf8() && ($has_oneof_case_message$)) {\n"
- " $oneof_name$_ = s;\n"
- " }\n");
- }
- printer->Print(variables_,
- " 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 $default_init$;\n"
- " if ($has_oneof_case_message$) {\n"
- " ref = $oneof_name$_;\n"
- " }\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"
- " if ($has_oneof_case_message$) {\n"
- " $oneof_name$_ = b;\n"
- " }\n"
- " return b;\n"
- " } else {\n"
- " return (com.google.protobuf.ByteString) ref;\n"
- " }\n"
- "}\n");
-
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "private void set$capitalized_name$(\n"
- " java.lang.String value) {\n"
- "$null_check$"
- " $set_oneof_case_message$;\n"
- " $oneof_name$_ = value;\n"
- "}\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "private void clear$capitalized_name$() {\n"
- " if ($has_oneof_case_message$) {\n"
- " $clear_oneof_case_message$;\n"
- " $oneof_name$_ = null;\n"
- " }\n"
- "}\n");
-
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "private void set$capitalized_name$Bytes(\n"
- " com.google.protobuf.ByteString value) {\n"
- "$null_check$");
- if (CheckUtf8(descriptor_)) {
- printer->Print(variables_,
- " checkByteStringIsUtf8(value);\n");
- }
- printer->Print(variables_,
- " $set_oneof_case_message$;\n"
- " $oneof_name$_ = value;\n"
- "}\n");
-}
-
-void ImmutableStringOneofFieldLiteGenerator::
-GenerateBuilderMembers(io::Printer* printer) const {
- if (SupportFieldPresence(descriptor_->file())) {
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public boolean has$capitalized_name$() {\n"
- " return instance.has$capitalized_name$();\n"
- "}\n");
- }
-
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public java.lang.String get$capitalized_name$() {\n"
- " return instance.get$capitalized_name$();\n"
- "}\n");
-
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public com.google.protobuf.ByteString\n"
- " get$capitalized_name$Bytes() {\n"
- " return instance.get$capitalized_name$Bytes();\n"
- "}\n");
-
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public Builder set$capitalized_name$(\n"
- " java.lang.String value) {\n"
- " copyOnWrite();\n"
- " instance.set$capitalized_name$(value);\n"
- " return this;\n"
- "}\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public Builder clear$capitalized_name$() {\n"
- " copyOnWrite();\n"
- " instance.clear$capitalized_name$();\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"
- " copyOnWrite();\n"
- " instance.set$capitalized_name$Bytes(value);\n"
- " return this;\n"
- "}\n");
-}
-
-void ImmutableStringOneofFieldLiteGenerator::
-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_,
- "$set_oneof_case_message$;\n"
- "$oneof_name$_ = other.$oneof_name$_;\n"
- "$on_changed$\n");
-}
-
-void ImmutableStringOneofFieldLiteGenerator::
-GenerateParsingCode(io::Printer* printer) const {
- if (CheckUtf8(descriptor_)) {
- printer->Print(variables_,
- "String s = input.readStringRequireUtf8();\n"
- "$set_oneof_case_message$;\n"
- "$oneof_name$_ = s;\n");
- } else if (!HasDescriptorMethods(descriptor_->file())) {
- // Lite runtime should attempt to reduce allocations by attempting to
- // construct the string directly from the input stream buffer. This avoids
- // spurious intermediary ByteString allocations, cutting overall allocations
- // in half.
- printer->Print(variables_,
- "String s = input.readString();\n"
- "$set_oneof_case_message$;\n"
- "$oneof_name$_ = s;\n");
- } else {
- printer->Print(variables_,
- "com.google.protobuf.ByteString bs = input.readBytes();\n"
- "$set_oneof_case_message$;\n"
- "$oneof_name$_ = bs;\n");
- }
-}
-
-void ImmutableStringOneofFieldLiteGenerator::
-GenerateSerializationCode(io::Printer* printer) const {
- printer->Print(variables_,
- "if ($has_oneof_case_message$) {\n"
- " output.writeBytes($number$, get$capitalized_name$Bytes());\n"
- "}\n");
-}
-
-void ImmutableStringOneofFieldLiteGenerator::
-GenerateSerializedSizeCode(io::Printer* printer) const {
- printer->Print(variables_,
- "if ($has_oneof_case_message$) {\n"
- " size += com.google.protobuf.CodedOutputStream\n"
- " .computeBytesSize($number$, get$capitalized_name$Bytes());\n"
- "}\n");
-}
-
-// ===================================================================
-
-RepeatedImmutableStringFieldLiteGenerator::
-RepeatedImmutableStringFieldLiteGenerator(const FieldDescriptor* descriptor,
- int messageBitIndex,
- int builderBitIndex,
- Context* context)
- : descriptor_(descriptor), messageBitIndex_(messageBitIndex),
- builderBitIndex_(builderBitIndex), context_(context),
- name_resolver_(context->GetNameResolver()) {
- SetPrimitiveVariables(descriptor, messageBitIndex, builderBitIndex,
- context->GetFieldGeneratorInfo(descriptor),
- name_resolver_, &variables_);
-}
-
-RepeatedImmutableStringFieldLiteGenerator::
-~RepeatedImmutableStringFieldLiteGenerator() {}
-
-int RepeatedImmutableStringFieldLiteGenerator::GetNumBitsForMessage() const {
- return 0;
-}
-
-int RepeatedImmutableStringFieldLiteGenerator::GetNumBitsForBuilder() const {
- return 0;
-}
-
-void RepeatedImmutableStringFieldLiteGenerator::
-GenerateInterfaceMembers(io::Printer* printer) const {
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$com.google.protobuf.ProtocolStringList\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 RepeatedImmutableStringFieldLiteGenerator::
-GenerateMembers(io::Printer* printer) const {
- printer->Print(variables_,
- "private com.google.protobuf.LazyStringArrayList $name$_;\n");
- PrintExtraFieldInfo(variables_, printer);
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public com.google.protobuf.ProtocolStringList\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");
- }
-
- printer->Print(variables_,
- "private void ensure$capitalized_name$IsMutable() {\n"
- " if (!$is_mutable$) {\n"
- " $name$_ = new com.google.protobuf.LazyStringArrayList($name$_);\n"
- " }\n"
- "}\n");
-
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "private void set$capitalized_name$(\n"
- " int index, java.lang.String value) {\n"
- "$null_check$"
- " ensure$capitalized_name$IsMutable();\n"
- " $name$_.set(index, value);\n"
- "}\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "private void add$capitalized_name$(\n"
- " java.lang.String value) {\n"
- "$null_check$"
- " ensure$capitalized_name$IsMutable();\n"
- " $name$_.add(value);\n"
- "}\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "private void addAll$capitalized_name$(\n"
- " java.lang.Iterable<java.lang.String> values) {\n"
- " ensure$capitalized_name$IsMutable();\n"
- " com.google.protobuf.AbstractMessageLite.addAll(\n"
- " values, $name$_);\n"
- "}\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "private void clear$capitalized_name$() {\n"
- " $name$_ = $empty_list$;\n"
- "}\n");
-
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "private void add$capitalized_name$Bytes(\n"
- " com.google.protobuf.ByteString value) {\n"
- "$null_check$");
- if (CheckUtf8(descriptor_)) {
- printer->Print(variables_,
- " checkByteStringIsUtf8(value);\n");
- }
- printer->Print(variables_,
- " ensure$capitalized_name$IsMutable();\n"
- " $name$_.add(value);\n"
- "}\n");
-}
-
-void RepeatedImmutableStringFieldLiteGenerator::
-GenerateBuilderMembers(io::Printer* printer) const {
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public com.google.protobuf.ProtocolStringList\n"
- " get$capitalized_name$List() {\n"
- " return ((com.google.protobuf.LazyStringList)\n"
- " instance.get$capitalized_name$List()).getUnmodifiableView();\n"
- "}\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public int get$capitalized_name$Count() {\n"
- " return instance.get$capitalized_name$Count();\n"
- "}\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public java.lang.String get$capitalized_name$(int index) {\n"
- " return instance.get$capitalized_name$(index);\n"
- "}\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public com.google.protobuf.ByteString\n"
- " get$capitalized_name$Bytes(int index) {\n"
- " return instance.get$capitalized_name$Bytes(index);\n"
- "}\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public Builder set$capitalized_name$(\n"
- " int index, java.lang.String value) {\n"
- " copyOnWrite();\n"
- " instance.set$capitalized_name$(index, value);\n"
- " return this;\n"
- "}\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public Builder add$capitalized_name$(\n"
- " java.lang.String value) {\n"
- " copyOnWrite();\n"
- " instance.add$capitalized_name$(value);\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"
- " copyOnWrite();\n"
- " instance.addAll$capitalized_name$(values);\n"
- " return this;\n"
- "}\n");
- WriteFieldDocComment(printer, descriptor_);
- printer->Print(variables_,
- "$deprecation$public Builder clear$capitalized_name$() {\n"
- " copyOnWrite();\n"
- " instance.clear$capitalized_name$();\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"
- " copyOnWrite();\n"
- " instance.add$capitalized_name$Bytes(value);\n"
- " return this;\n"
- "}\n");
-}
-
-void RepeatedImmutableStringFieldLiteGenerator::
-GenerateFieldBuilderInitializationCode(io::Printer* printer) const {
- // noop for strings
-}
-
-void RepeatedImmutableStringFieldLiteGenerator::
-GenerateInitializationCode(io::Printer* printer) const {
- printer->Print(variables_, "$name$_ = $empty_list$;\n");
-}
-
-void RepeatedImmutableStringFieldLiteGenerator::
-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"
- " } else {\n"
- " ensure$capitalized_name$IsMutable();\n"
- " $name$_.addAll(other.$name$_);\n"
- " }\n"
- " $on_changed$\n"
- "}\n");
-}
-
-void RepeatedImmutableStringFieldLiteGenerator::
-GenerateDynamicMethodMakeImmutableCode(io::Printer* printer) const {
- printer->Print(variables_,
- "$name$_.makeImmutable();\n");
-}
-
-void RepeatedImmutableStringFieldLiteGenerator::
-GenerateParsingCode(io::Printer* printer) const {
- if (CheckUtf8(descriptor_)) {
- printer->Print(variables_,
- "String s = input.readStringRequireUtf8();\n");
- } else if (!HasDescriptorMethods(descriptor_->file())) {
- // Lite runtime should attempt to reduce allocations by attempting to
- // construct the string directly from the input stream buffer. This avoids
- // spurious intermediary ByteString allocations, cutting overall allocations
- // in half.
- printer->Print(variables_,
- "String s = input.readString();\n");
- } else {
- printer->Print(variables_,
- "com.google.protobuf.ByteString bs = input.readBytes();\n");
- }
- printer->Print(variables_,
- "if (!$is_mutable$) {\n"
- " $name$_ = new com.google.protobuf.LazyStringArrayList();\n"
- "}\n");
- if (CheckUtf8(descriptor_) || !HasDescriptorMethods(descriptor_->file())) {
- printer->Print(variables_,
- "$name$_.add(s);\n");
- } else {
- printer->Print(variables_,
- "$name$_.add(bs);\n");
- }
-}
-
-void RepeatedImmutableStringFieldLiteGenerator::
-GenerateParsingCodeFromPacked(io::Printer* printer) const {
- printer->Print(variables_,
- "int length = input.readRawVarint32();\n"
- "int limit = input.pushLimit(length);\n"
- "if (!$is_mutable$ && input.getBytesUntilLimit() > 0) {\n"
- " $name$_ = new com.google.protobuf.LazyStringArrayList();\n"
- "}\n"
- "while (input.getBytesUntilLimit() > 0) {\n");
- if (CheckUtf8(descriptor_)) {
- printer->Print(variables_,
- " String s = input.readStringRequireUtf8();\n");
- } else {
- printer->Print(variables_,
- " String s = input.readString();\n");
- }
- printer->Print(variables_,
- " $name$.add(s);\n");
- printer->Print(variables_,
- "}\n"
- "input.popLimit(limit);\n");
-}
-
-void RepeatedImmutableStringFieldLiteGenerator::
-GenerateParsingDoneCode(io::Printer* printer) const {
- printer->Print(variables_,
- "if ($is_mutable$) {\n"
- " $name$_.makeImmutable();\n"
- "}\n");
-}
-
-void RepeatedImmutableStringFieldLiteGenerator::
-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 RepeatedImmutableStringFieldLiteGenerator::
-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 RepeatedImmutableStringFieldLiteGenerator::
-GenerateEqualsCode(io::Printer* printer) const {
- printer->Print(variables_,
- "result = result && get$capitalized_name$List()\n"
- " .equals(other.get$capitalized_name$List());\n");
-}
-
-void RepeatedImmutableStringFieldLiteGenerator::
-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 RepeatedImmutableStringFieldLiteGenerator::GetBoxedType() const {
- return "String";
-}
-
-} // namespace java
-} // namespace compiler
-} // namespace protobuf
-} // namespace google

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