mirror of
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350 lines
13 KiB
C++
350 lines
13 KiB
C++
// Protocol Buffers - Google's data interchange format
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// Copyright 2008 Google Inc. All rights reserved.
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// https://developers.google.com/protocol-buffers/
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include <sstream>
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#include <thirdparty/protobuf/compiler/code_generator.h>
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#include <thirdparty/protobuf/descriptor.h>
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#include <thirdparty/protobuf/descriptor.pb.h>
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#include <thirdparty/protobuf/io/printer.h>
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#include <thirdparty/protobuf/io/zero_copy_stream.h>
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#include <thirdparty/protobuf/stubs/strutil.h>
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#include <thirdparty/protobuf/compiler/csharp/csharp_doc_comment.h>
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#include <thirdparty/protobuf/compiler/csharp/csharp_helpers.h>
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#include <thirdparty/protobuf/compiler/csharp/csharp_options.h>
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#include <thirdparty/protobuf/compiler/csharp/csharp_primitive_field.h>
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namespace google {
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namespace protobuf {
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namespace compiler {
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namespace csharp {
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PrimitiveFieldGenerator::PrimitiveFieldGenerator(
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const FieldDescriptor* descriptor, int presenceIndex, const Options *options)
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: FieldGeneratorBase(descriptor, presenceIndex, options) {
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// TODO(jonskeet): Make this cleaner...
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is_value_type = descriptor->type() != FieldDescriptor::TYPE_STRING
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&& descriptor->type() != FieldDescriptor::TYPE_BYTES;
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if (!is_value_type && !SupportsPresenceApi(descriptor_)) {
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variables_["has_property_check"] = variables_["property_name"] + ".Length != 0";
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variables_["other_has_property_check"] = "other." + variables_["property_name"] + ".Length != 0";
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}
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}
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PrimitiveFieldGenerator::~PrimitiveFieldGenerator() {
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}
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void PrimitiveFieldGenerator::GenerateMembers(io::Printer* printer) {
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// Note: in multiple places, this code assumes that all fields
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// that support presence are either nullable, or use a presence field bit.
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// Fields which are oneof members are not generated here; they're generated in PrimitiveOneofFieldGenerator below.
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// Extensions are not generated here either.
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// Proto2 allows different default values to be specified. These are retained
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// via static fields. They don't particularly need to be, but we don't need
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// to change that. In Proto3 the default value we don't generate these
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// fields, just using the literal instead.
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if (IsProto2(descriptor_->file())) {
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// Note: "private readonly static" isn't as idiomatic as
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// "private static readonly", but changing this now would create a lot of
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// churn in generated code with near-to-zero benefit.
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printer->Print(
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variables_,
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"private readonly static $type_name$ $property_name$DefaultValue = $default_value$;\n\n");
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variables_["default_value_access"] =
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variables_["property_name"] + "DefaultValue";
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} else {
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variables_["default_value_access"] = variables_["default_value"];
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}
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// Declare the field itself.
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printer->Print(
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variables_,
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"private $type_name$ $name_def_message$;\n");
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WritePropertyDocComment(printer, descriptor_);
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AddPublicMemberAttributes(printer);
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// Most of the work is done in the property:
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// Declare the property itself (the same for all options)
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printer->Print(variables_, "$access_level$ $type_name$ $property_name$ {\n");
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// Specify the "getter", which may need to check for a presence field.
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if (SupportsPresenceApi(descriptor_)) {
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if (IsNullable(descriptor_)) {
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printer->Print(
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variables_,
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" get { return $name$_ ?? $default_value_access$; }\n");
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} else {
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printer->Print(
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variables_,
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// Note: it's possible that this could be rewritten as a
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// conditional ?: expression, but there's no significant benefit
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// to changing it.
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" get { if ($has_field_check$) { return $name$_; } else { return $default_value_access$; } }\n");
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}
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} else {
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printer->Print(
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variables_,
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" get { return $name$_; }\n");
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}
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// Specify the "setter", which may need to set a field bit as well as the
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// value.
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printer->Print(" set {\n");
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if (presenceIndex_ != -1) {
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printer->Print(
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variables_,
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" $set_has_field$;\n");
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}
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if (is_value_type) {
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printer->Print(
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variables_,
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" $name$_ = value;\n");
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} else {
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printer->Print(
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variables_,
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" $name$_ = pb::ProtoPreconditions.CheckNotNull(value, \"value\");\n");
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}
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printer->Print(
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" }\n"
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"}\n");
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// The "HasFoo" property, where required.
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if (SupportsPresenceApi(descriptor_)) {
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printer->Print(variables_,
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"/// <summary>Gets whether the \"$descriptor_name$\" field is set</summary>\n");
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AddPublicMemberAttributes(printer);
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printer->Print(
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variables_,
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"$access_level$ bool Has$property_name$ {\n"
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" get { return ");
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if (IsNullable(descriptor_)) {
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printer->Print(
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variables_,
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"$name$_ != null; }\n}\n");
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} else {
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printer->Print(
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variables_,
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"$has_field_check$; }\n}\n");
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}
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}
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// The "ClearFoo" method, where required.
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if (SupportsPresenceApi(descriptor_)) {
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printer->Print(variables_,
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"/// <summary>Clears the value of the \"$descriptor_name$\" field</summary>\n");
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AddPublicMemberAttributes(printer);
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printer->Print(
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variables_,
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"$access_level$ void Clear$property_name$() {\n");
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if (IsNullable(descriptor_)) {
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printer->Print(variables_, " $name$_ = null;\n");
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} else {
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printer->Print(variables_, " $clear_has_field$;\n");
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}
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printer->Print("}\n");
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}
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}
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void PrimitiveFieldGenerator::GenerateMergingCode(io::Printer* printer) {
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printer->Print(
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variables_,
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"if ($other_has_property_check$) {\n"
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" $property_name$ = other.$property_name$;\n"
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"}\n");
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}
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void PrimitiveFieldGenerator::GenerateParsingCode(io::Printer* printer) {
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// Note: invoke the property setter rather than writing straight to the field,
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// so that we can normalize "null to empty" for strings and bytes.
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printer->Print(
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variables_,
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"$property_name$ = input.Read$capitalized_type_name$();\n");
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}
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void PrimitiveFieldGenerator::GenerateSerializationCode(io::Printer* printer) {
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printer->Print(
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variables_,
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"if ($has_property_check$) {\n"
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" output.WriteRawTag($tag_bytes$);\n"
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" output.Write$capitalized_type_name$($property_name$);\n"
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"}\n");
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}
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void PrimitiveFieldGenerator::GenerateSerializedSizeCode(io::Printer* printer) {
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printer->Print(
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variables_,
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"if ($has_property_check$) {\n");
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printer->Indent();
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int fixedSize = GetFixedSize(descriptor_->type());
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if (fixedSize == -1) {
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printer->Print(
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variables_,
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"size += $tag_size$ + pb::CodedOutputStream.Compute$capitalized_type_name$Size($property_name$);\n");
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} else {
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printer->Print(
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"size += $tag_size$ + $fixed_size$;\n",
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"fixed_size", StrCat(fixedSize),
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"tag_size", variables_["tag_size"]);
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}
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printer->Outdent();
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printer->Print("}\n");
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}
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void PrimitiveFieldGenerator::WriteHash(io::Printer* printer) {
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const char *text = "if ($has_property_check$) hash ^= $property_name$.GetHashCode();\n";
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if (descriptor_->type() == FieldDescriptor::TYPE_FLOAT) {
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text = "if ($has_property_check$) hash ^= pbc::ProtobufEqualityComparers.BitwiseSingleEqualityComparer.GetHashCode($property_name$);\n";
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} else if (descriptor_->type() == FieldDescriptor::TYPE_DOUBLE) {
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text = "if ($has_property_check$) hash ^= pbc::ProtobufEqualityComparers.BitwiseDoubleEqualityComparer.GetHashCode($property_name$);\n";
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}
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printer->Print(variables_, text);
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}
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void PrimitiveFieldGenerator::WriteEquals(io::Printer* printer) {
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const char *text = "if ($property_name$ != other.$property_name$) return false;\n";
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if (descriptor_->type() == FieldDescriptor::TYPE_FLOAT) {
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text = "if (!pbc::ProtobufEqualityComparers.BitwiseSingleEqualityComparer.Equals($property_name$, other.$property_name$)) return false;\n";
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} else if (descriptor_->type() == FieldDescriptor::TYPE_DOUBLE) {
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text = "if (!pbc::ProtobufEqualityComparers.BitwiseDoubleEqualityComparer.Equals($property_name$, other.$property_name$)) return false;\n";
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}
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printer->Print(variables_, text);
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}
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void PrimitiveFieldGenerator::WriteToString(io::Printer* printer) {
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printer->Print(
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variables_,
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"PrintField(\"$descriptor_name$\", $has_property_check$, $property_name$, writer);\n");
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}
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void PrimitiveFieldGenerator::GenerateCloningCode(io::Printer* printer) {
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printer->Print(variables_,
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"$name$_ = other.$name$_;\n");
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}
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void PrimitiveFieldGenerator::GenerateCodecCode(io::Printer* printer) {
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printer->Print(
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variables_,
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"pb::FieldCodec.For$capitalized_type_name$($tag$, $default_value$)");
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}
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void PrimitiveFieldGenerator::GenerateExtensionCode(io::Printer* printer) {
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WritePropertyDocComment(printer, descriptor_);
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AddDeprecatedFlag(printer);
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printer->Print(
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variables_,
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"$access_level$ static readonly pb::Extension<$extended_type$, $type_name$> $property_name$ =\n"
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" new pb::Extension<$extended_type$, $type_name$>($number$, ");
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GenerateCodecCode(printer);
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printer->Print(");\n");
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}
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PrimitiveOneofFieldGenerator::PrimitiveOneofFieldGenerator(
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const FieldDescriptor* descriptor, int presenceIndex, const Options *options)
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: PrimitiveFieldGenerator(descriptor, presenceIndex, options) {
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SetCommonOneofFieldVariables(&variables_);
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}
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PrimitiveOneofFieldGenerator::~PrimitiveOneofFieldGenerator() {
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}
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void PrimitiveOneofFieldGenerator::GenerateMembers(io::Printer* printer) {
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WritePropertyDocComment(printer, descriptor_);
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AddPublicMemberAttributes(printer);
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printer->Print(
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variables_,
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"$access_level$ $type_name$ $property_name$ {\n"
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" get { return $has_property_check$ ? ($type_name$) $oneof_name$_ : $default_value$; }\n"
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" set {\n");
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if (is_value_type) {
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printer->Print(
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variables_,
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" $oneof_name$_ = value;\n");
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} else {
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printer->Print(
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variables_,
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" $oneof_name$_ = pb::ProtoPreconditions.CheckNotNull(value, \"value\");\n");
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}
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printer->Print(
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variables_,
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" $oneof_name$Case_ = $oneof_property_name$OneofCase.$oneof_case_name$;\n"
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" }\n"
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"}\n");
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if (SupportsPresenceApi(descriptor_)) {
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printer->Print(
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variables_,
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"/// <summary>Gets whether the \"$descriptor_name$\" field is set</summary>\n");
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AddPublicMemberAttributes(printer);
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printer->Print(
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variables_,
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"$access_level$ bool Has$property_name$ {\n"
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" get { return $oneof_name$Case_ == $oneof_property_name$OneofCase.$oneof_case_name$; }\n"
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"}\n");
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printer->Print(
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variables_,
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"/// <summary> Clears the value of the oneof if it's currently set to \"$descriptor_name$\" </summary>\n");
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AddPublicMemberAttributes(printer);
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printer->Print(
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variables_,
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"$access_level$ void Clear$property_name$() {\n"
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" if ($has_property_check$) {\n"
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" Clear$oneof_property_name$();\n"
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" }\n"
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"}\n");
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}
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}
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void PrimitiveOneofFieldGenerator::GenerateMergingCode(io::Printer* printer) {
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printer->Print(variables_, "$property_name$ = other.$property_name$;\n");
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}
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void PrimitiveOneofFieldGenerator::WriteToString(io::Printer* printer) {
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printer->Print(variables_,
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"PrintField(\"$descriptor_name$\", $has_property_check$, $oneof_name$_, writer);\n");
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}
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void PrimitiveOneofFieldGenerator::GenerateParsingCode(io::Printer* printer) {
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printer->Print(
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variables_,
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"$property_name$ = input.Read$capitalized_type_name$();\n");
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}
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void PrimitiveOneofFieldGenerator::GenerateCloningCode(io::Printer* printer) {
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printer->Print(variables_,
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"$property_name$ = other.$property_name$;\n");
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}
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} // namespace csharp
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} // namespace compiler
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} // namespace protobuf
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} // namespace google
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