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// 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)
// Based on original Protocol Buffers design by
// Sanjay Ghemawat, Jeff Dean, and others.
#include "google/protobuf/compiler/java/names.h"
#include <string>
#include "y_absl/container/flat_hash_set.h"
#include "google/protobuf/compiler/java/helpers.h"
#include "google/protobuf/compiler/java/name_resolver.h"
#include "google/protobuf/compiler/java/names.h"
#include "google/protobuf/compiler/java/options.h"
#include "google/protobuf/descriptor.pb.h"
// Must be last.
#include "google/protobuf/port_def.inc"
namespace google {
namespace protobuf {
namespace compiler {
namespace java {
namespace {
const char* DefaultPackage(Options options) {
return options.opensource_runtime ? "" : "com.google.protos";
}
bool IsReservedName(y_absl::string_view name) {
static const auto& kReservedNames =
*new y_absl::flat_hash_set<y_absl::string_view>({
"abstract", "assert", "boolean", "break", "byte",
"case", "catch", "char", "class", "const",
"continue", "default", "do", "double", "else",
"enum", "extends", "final", "finally", "float",
"for", "goto", "if", "implements", "import",
"instanceof", "int", "interface", "long", "native",
"new", "package", "private", "protected", "public",
"return", "short", "static", "strictfp", "super",
"switch", "synchronized", "this", "throw", "throws",
"transient", "try", "void", "volatile", "while",
});
return kReservedNames.contains(name);
}
bool IsForbidden(y_absl::string_view field_name) {
// Names that should be avoided (in UpperCamelCase format).
// Using them will cause the compiler to generate accessors whose names
// collide with methods defined in base classes.
// Keep this list in sync with specialFieldNames in
// java/core/src/main/java/com/google/protobuf/DescriptorMessageInfoFactory.java
static const auto& kForbiddenNames =
*new y_absl::flat_hash_set<y_absl::string_view>({
// java.lang.Object:
"Class",
// com.google.protobuf.MessageLiteOrBuilder:
"DefaultInstanceForType",
// com.google.protobuf.MessageLite:
"ParserForType",
"SerializedSize",
// com.google.protobuf.MessageOrBuilder:
"AllFields",
"DescriptorForType",
"InitializationErrorString",
"UnknownFields",
// obsolete. kept for backwards compatibility of generated code
"CachedSize",
});
return kForbiddenNames.contains(UnderscoresToCamelCase(field_name, true));
}
TProtoStringType FieldName(const FieldDescriptor* field) {
TProtoStringType field_name;
// Groups are hacky: The name of the field is just the lower-cased name
// of the group type. In Java, though, we would like to retain the original
// capitalization of the type name.
if (GetType(field) == FieldDescriptor::TYPE_GROUP) {
field_name = field->message_type()->name();
} else {
field_name = field->name();
}
if (IsForbidden(field_name)) {
// Append a trailing "#" to indicate that the name should be decorated to
// avoid collision with other names.
y_absl::StrAppend(&field_name, "#");
}
return field_name;
}
} // namespace
TProtoStringType ClassName(const Descriptor* descriptor) {
ClassNameResolver name_resolver;
return name_resolver.GetClassName(descriptor, true);
}
TProtoStringType ClassName(const EnumDescriptor* descriptor) {
ClassNameResolver name_resolver;
return name_resolver.GetClassName(descriptor, true);
}
TProtoStringType ClassName(const ServiceDescriptor* descriptor) {
ClassNameResolver name_resolver;
return name_resolver.GetClassName(descriptor, true);
}
TProtoStringType ClassName(const FileDescriptor* descriptor) {
ClassNameResolver name_resolver;
return name_resolver.GetClassName(descriptor, true);
}
TProtoStringType FileJavaPackage(const FileDescriptor* file, bool immutable,
Options options) {
TProtoStringType result;
if (file->options().has_java_package()) {
result = file->options().java_package();
} else {
result = DefaultPackage(options);
if (!file->package().empty()) {
if (!result.empty()) result += '.';
result += file->package();
}
}
return result;
}
TProtoStringType FileJavaPackage(const FileDescriptor* file, Options options) {
return FileJavaPackage(file, true /* immutable */, options);
}
TProtoStringType CapitalizedFieldName(const FieldDescriptor* field) {
return UnderscoresToCamelCase(FieldName(field), true);
}
TProtoStringType UnderscoresToCamelCase(const FieldDescriptor* field) {
return UnderscoresToCamelCase(FieldName(field), false);
}
TProtoStringType UnderscoresToCapitalizedCamelCase(const FieldDescriptor* field) {
return UnderscoresToCamelCase(FieldName(field), true);
}
TProtoStringType UnderscoresToCamelCase(const MethodDescriptor* method) {
return UnderscoresToCamelCase(method->name(), false);
}
TProtoStringType UnderscoresToCamelCaseCheckReserved(const FieldDescriptor* field) {
TProtoStringType name = UnderscoresToCamelCase(field);
if (IsReservedName(name)) {
y_absl::StrAppend(&name, "_");
}
return name;
}
} // namespace java
} // namespace compiler
} // namespace protobuf
} // namespace google
#include "google/protobuf/port_undef.inc"
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