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

Issue 1842653006: Update //third_party/protobuf to version 3. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: merge Created 4 years, 8 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
new file mode 100644
index 0000000000000000000000000000000000000000..eb5964bd300e0ccef72611b2c0915c170a236f67
--- /dev/null
+++ b/third_party/protobuf/src/google/protobuf/compiler/java/java_string_field_lite.cc
@@ -0,0 +1,900 @@
+// 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/logging.h>
+#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"] =
+ "com.google.protobuf.GeneratedMessageLite.emptyProtobufList()";
+
+ (*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"] + ".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);
+}
+
+} // 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. In the SPEED and CODE_SIZE runtimes,
+// strings are not stored as java.lang.String in the Message because of 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.
+//
+// In the LITE_RUNTIME, we store strings as java.lang.String because we assume
+// that the users of this runtime are not subject to proto1 constraints and are
+// running code on devices that are user facing. That is, the developers are
+// properly incentivized to only fetch the data they need to read and wish to
+// reduce the number of allocations incurred when running on a user's device.
+
+// TODO(dweis): Consider dropping all of the *Bytes() methods. They really
+// shouldn't be necessary or used on devices.
+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.String $name$_;\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"
+ " return $name$_;\n"
+ "}\n");
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public com.google.protobuf.ByteString\n"
+ " get$capitalized_name$Bytes() {\n"
+ " return com.google.protobuf.ByteString.copyFromUtf8($name$_);\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.toStringUtf8();\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 {
+ // 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");
+ }
+}
+
+void ImmutableStringFieldLiteGenerator::
+GenerateParsingDoneCode(io::Printer* printer) const {
+ // noop for strings
+}
+
+void ImmutableStringFieldLiteGenerator::
+GenerateSerializationCode(io::Printer* printer) const {
+ // Lite runtime should reduce allocations by serializing the string directly.
+ // This avoids spurious intermediary ByteString allocations, cutting overall
+ // allocations in half.
+ printer->Print(variables_,
+ "if ($is_field_present_message$) {\n"
+ " output.writeString($number$, get$capitalized_name$());\n"
+ "}\n");
+}
+
+void ImmutableStringFieldLiteGenerator::
+GenerateSerializedSizeCode(io::Printer* printer) const {
+ // Lite runtime should reduce allocations by computing on the string directly.
+ // This avoids spurious intermediary ByteString allocations, cutting overall
+ // allocations in half.
+ printer->Print(variables_,
+ "if ($is_field_present_message$) {\n"
+ " size += com.google.protobuf.CodedOutputStream\n"
+ " .computeStringSize($number$, get$capitalized_name$());\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.String ref $default_init$;\n"
+ " if ($has_oneof_case_message$) {\n"
+ " ref = (java.lang.String) $oneof_name$_;\n"
+ " }\n"
+ " return ref;\n"
+ "}\n");
+ WriteFieldDocComment(printer, descriptor_);
+
+ printer->Print(variables_,
+ "$deprecation$public com.google.protobuf.ByteString\n"
+ " get$capitalized_name$Bytes() {\n"
+ " java.lang.String ref $default_init$;\n"
+ " if ($has_oneof_case_message$) {\n"
+ " ref = (java.lang.String) $oneof_name$_;\n"
+ " }\n"
+ " return com.google.protobuf.ByteString.copyFromUtf8(ref);\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.toStringUtf8();\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 {
+ // 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");
+ }
+}
+
+void ImmutableStringOneofFieldLiteGenerator::
+GenerateSerializationCode(io::Printer* printer) const {
+ // Lite runtime should reduce allocations by serializing the string directly.
+ // This avoids spurious intermediary ByteString allocations, cutting overall
+ // allocations in half.
+ printer->Print(variables_,
+ "if ($has_oneof_case_message$) {\n"
+ " output.writeString($number$, get$capitalized_name$());\n"
+ "}\n");
+}
+
+void ImmutableStringOneofFieldLiteGenerator::
+GenerateSerializedSizeCode(io::Printer* printer) const {
+ // Lite runtime should reduce allocations by computing on the string directly.
+ // This avoids spurious intermediary ByteString allocations, cutting overall
+ // allocations in half.
+ printer->Print(variables_,
+ "if ($has_oneof_case_message$) {\n"
+ " size += com.google.protobuf.CodedOutputStream\n"
+ " .computeStringSize($number$, get$capitalized_name$());\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_,
+ "$deprecation$java.util.List<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 RepeatedImmutableStringFieldLiteGenerator::
+GenerateMembers(io::Printer* printer) const {
+ printer->Print(variables_,
+ "private com.google.protobuf.Internal.ProtobufList<String> $name$_;\n");
+ PrintExtraFieldInfo(variables_, printer);
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public java.util.List<String> 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 com.google.protobuf.ByteString.copyFromUtf8(\n"
+ " $name$_.get(index));\n"
+ "}\n");
+
+ printer->Print(variables_,
+ "private void ensure$capitalized_name$IsMutable() {\n"
+ " if (!$is_mutable$) {\n"
+ " $name$_ = com.google.protobuf.GeneratedMessageLite.newProtobufList(\n"
+ " $name$_);\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.toStringUtf8());\n"
+ "}\n");
+}
+
+void RepeatedImmutableStringFieldLiteGenerator::
+GenerateBuilderMembers(io::Printer* printer) const {
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public java.util.List<String>\n"
+ " get$capitalized_name$List() {\n"
+ " return java.util.Collections.unmodifiableList(\n"
+ " instance.get$capitalized_name$List());\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 {
+ // 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");
+ }
+ printer->Print(variables_,
+ "if (!$is_mutable$) {\n"
+ " $name$_ = com.google.protobuf.GeneratedMessageLite.newProtobufList();\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::
+GenerateParsingDoneCode(io::Printer* printer) const {
+ printer->Print(variables_,
+ "if ($is_mutable$) {\n"
+ " $name$_.makeImmutable();\n"
+ "}\n");
+}
+
+void RepeatedImmutableStringFieldLiteGenerator::
+GenerateSerializationCode(io::Printer* printer) const {
+ // Lite runtime should reduce allocations by serializing the string directly.
+ // This avoids spurious intermediary ByteString allocations, cutting overall
+ // allocations in half.
+ printer->Print(variables_,
+ "for (int i = 0; i < $name$_.size(); i++) {\n"
+ " output.writeString($number$, $name$_.get(i));\n"
+ "}\n");
+}
+
+void RepeatedImmutableStringFieldLiteGenerator::
+GenerateSerializedSizeCode(io::Printer* printer) const {
+ // Lite runtime should reduce allocations by computing on the string directly.
+ // This avoids spurious intermediary ByteString allocations, cutting overall
+ // allocations in half.
+ 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"
+ " .computeStringSizeNoTag($name$_.get(i));\n"
+ "}\n");
+
+ printer->Print(
+ "size += dataSize;\n");
+
+
+ printer->Print(variables_,
+ "size += $tag_size$ * get$capitalized_name$List().size();\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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