[Upb C++] Split name-related functions from gen_utils.{h,cc} into names.{h,cc}. Also create a separate build target for output.{h,cc} (though it's kept private, since we prefer protobuf/io/printer.h for newer code).
PiperOrigin-RevId: 535333251pull/13171/head
Protobuf Team Bot
2 years ago
committed by
Copybara-Service
parent
a0f520dc75
commit
3e4de3c7dd
12 changed files with 327 additions and 206 deletions
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/*
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* Copyright (c) 2009-2021, Google LLC |
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* All rights reserved. |
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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 met: |
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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 copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* * Neither the name of Google LLC nor the |
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* names of its contributors may be used to endorse or promote products |
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* derived from 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 "AS IS" |
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL Google LLC BE LIABLE FOR ANY DIRECT, |
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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* ON ANY 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 OF THIS |
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#include "protos_generator/names.h" |
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#include <string> |
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#include "upbc/keywords.h" |
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namespace protos_generator { |
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namespace protobuf = ::google::protobuf; |
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namespace { |
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std::string NamespaceFromPackageName(absl::string_view package_name) { |
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return absl::StrCat(absl::StrReplaceAll(package_name, {{".", "::"}}), |
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"::protos"); |
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} |
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std::string DotsToColons(const std::string& name) { |
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return absl::StrReplaceAll(name, {{".", "::"}}); |
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} |
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std::string Namespace(const std::string& package) { |
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if (package.empty()) return ""; |
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return "::" + DotsToColons(package); |
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} |
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// Return the qualified C++ name for a file level symbol.
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std::string QualifiedFileLevelSymbol(const protobuf::FileDescriptor* file, |
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const std::string& name) { |
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if (file->package().empty()) { |
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return absl::StrCat("::", name); |
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} |
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// Append ::protos postfix to package name.
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return absl::StrCat(Namespace(file->package()), "::protos::", name); |
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} |
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std::string CppTypeInternal(const protobuf::FieldDescriptor* field, |
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bool is_const, bool is_type_parameter) { |
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std::string maybe_const = is_const ? "const " : ""; |
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switch (field->cpp_type()) { |
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case protobuf::FieldDescriptor::CPPTYPE_MESSAGE: { |
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if (is_type_parameter) { |
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return absl::StrCat(maybe_const, |
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QualifiedClassName(field->message_type())); |
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} else { |
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return absl::StrCat(maybe_const, |
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QualifiedClassName(field->message_type()), "*"); |
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} |
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} |
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case protobuf::FieldDescriptor::CPPTYPE_BOOL: |
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return "bool"; |
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case protobuf::FieldDescriptor::CPPTYPE_FLOAT: |
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return "float"; |
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case protobuf::FieldDescriptor::CPPTYPE_INT32: |
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case protobuf::FieldDescriptor::CPPTYPE_ENUM: |
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return "int32_t"; |
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case protobuf::FieldDescriptor::CPPTYPE_UINT32: |
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return "uint32_t"; |
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case protobuf::FieldDescriptor::CPPTYPE_DOUBLE: |
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return "double"; |
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case protobuf::FieldDescriptor::CPPTYPE_INT64: |
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return "int64_t"; |
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case protobuf::FieldDescriptor::CPPTYPE_UINT64: |
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return "uint64_t"; |
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case protobuf::FieldDescriptor::CPPTYPE_STRING: |
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return "absl::string_view"; |
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default: |
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ABSL_LOG(FATAL) << "Unexpected type: " << field->cpp_type(); |
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} |
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} |
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} // namespace
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std::string ClassName(const protobuf::Descriptor* descriptor) { |
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const protobuf::Descriptor* parent = descriptor->containing_type(); |
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std::string res; |
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// Classes in global namespace without package names are prefixed
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// by protos_ to avoid collision with C compiler structs defined in
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// proto.upb.h.
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if ((parent && parent->file()->package().empty()) || |
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descriptor->file()->package().empty()) { |
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res = std::string(kNoPackageNamePrefix); |
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} |
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if (parent) res += ClassName(parent) + "_"; |
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absl::StrAppend(&res, descriptor->name()); |
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return ::upbc::ResolveKeywordConflict(res); |
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} |
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std::string QualifiedClassName(const protobuf::Descriptor* descriptor) { |
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return QualifiedFileLevelSymbol(descriptor->file(), ClassName(descriptor)); |
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} |
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std::string QualifiedInternalClassName(const protobuf::Descriptor* descriptor) { |
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return QualifiedFileLevelSymbol( |
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descriptor->file(), absl::StrCat("internal::", ClassName(descriptor))); |
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} |
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std::string CppSourceFilename(const google::protobuf::FileDescriptor* file) { |
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return StripExtension(file->name()) + ".upb.proto.cc"; |
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} |
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std::string ForwardingHeaderFilename(const google::protobuf::FileDescriptor* file) { |
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return StripExtension(file->name()) + ".upb.fwd.h"; |
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} |
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std::string UpbCFilename(const google::protobuf::FileDescriptor* file) { |
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return StripExtension(file->name()) + ".upb.h"; |
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} |
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std::string CppHeaderFilename(const google::protobuf::FileDescriptor* file) { |
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return StripExtension(file->name()) + ".upb.proto.h"; |
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} |
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void WriteStartNamespace(const protobuf::FileDescriptor* file, Output& output) { |
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// Skip namespace generation if package name is not specified.
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if (file->package().empty()) { |
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return; |
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} |
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output("namespace $0 {\n\n", NamespaceFromPackageName(file->package())); |
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} |
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void WriteEndNamespace(const protobuf::FileDescriptor* file, Output& output) { |
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if (file->package().empty()) { |
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return; |
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} |
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output("} // namespace $0\n\n", NamespaceFromPackageName(file->package())); |
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} |
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std::string CppConstType(const protobuf::FieldDescriptor* field) { |
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return CppTypeInternal(field, /* is_const= */ true, |
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/* is_type_parameter= */ false); |
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} |
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std::string CppTypeParameterName(const protobuf::FieldDescriptor* field) { |
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return CppTypeInternal(field, /* is_const= */ false, |
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/* is_type_parameter= */ true); |
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} |
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std::string MessageBaseType(const protobuf::FieldDescriptor* field, |
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bool is_const) { |
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ABSL_DCHECK(field->cpp_type() == protobuf::FieldDescriptor::CPPTYPE_MESSAGE); |
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std::string maybe_const = is_const ? "const " : ""; |
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return maybe_const + QualifiedClassName(field->message_type()); |
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} |
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std::string MessagePtrConstType(const protobuf::FieldDescriptor* field, |
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bool is_const) { |
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ABSL_DCHECK(field->cpp_type() == protobuf::FieldDescriptor::CPPTYPE_MESSAGE); |
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std::string maybe_const = is_const ? "const " : ""; |
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return "::protos::Ptr<" + maybe_const + |
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QualifiedClassName(field->message_type()) + ">"; |
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} |
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std::string MessageCProxyType(const protobuf::FieldDescriptor* field, |
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bool is_const) { |
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ABSL_DCHECK(field->cpp_type() == protobuf::FieldDescriptor::CPPTYPE_MESSAGE); |
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std::string maybe_const = is_const ? "const " : ""; |
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return maybe_const + QualifiedInternalClassName(field->message_type()) + |
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"CProxy"; |
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} |
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std::string MessageProxyType(const protobuf::FieldDescriptor* field, |
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bool is_const) { |
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ABSL_DCHECK(field->cpp_type() == protobuf::FieldDescriptor::CPPTYPE_MESSAGE); |
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std::string maybe_const = is_const ? "const " : ""; |
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return maybe_const + QualifiedInternalClassName(field->message_type()) + |
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"Proxy"; |
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} |
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} // namespace protos_generator
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@ -0,0 +1,70 @@ |
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/*
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* Copyright (c) 2009-2021, Google LLC |
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* All rights reserved. |
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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 met: |
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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 copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* * Neither the name of Google LLC nor the |
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* names of its contributors may be used to endorse or promote products |
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* derived from 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 "AS IS" |
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL Google LLC BE LIABLE FOR ANY DIRECT, |
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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* ON ANY 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 OF THIS |
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#ifndef UPB_PROTOS_GENERATOR_NAMES_H_ |
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#define UPB_PROTOS_GENERATOR_NAMES_H_ |
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#include <string> |
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#include "google/protobuf/descriptor.pb.h" |
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#include "protos_generator/output.h" |
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namespace protos_generator { |
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namespace protobuf = ::google::protobuf; |
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inline constexpr absl::string_view kNoPackageNamePrefix = "protos_"; |
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std::string ClassName(const protobuf::Descriptor* descriptor); |
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std::string QualifiedClassName(const protobuf::Descriptor* descriptor); |
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std::string QualifiedInternalClassName(const protobuf::Descriptor* descriptor); |
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std::string CppSourceFilename(const google::protobuf::FileDescriptor* file); |
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std::string ForwardingHeaderFilename(const google::protobuf::FileDescriptor* file); |
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std::string UpbCFilename(const google::protobuf::FileDescriptor* file); |
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std::string CppHeaderFilename(const google::protobuf::FileDescriptor* file); |
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void WriteStartNamespace(const protobuf::FileDescriptor* file, Output& output); |
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void WriteEndNamespace(const protobuf::FileDescriptor* file, Output& output); |
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std::string CppConstType(const protobuf::FieldDescriptor* field); |
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std::string CppTypeParameterName(const protobuf::FieldDescriptor* field); |
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std::string MessageBaseType(const protobuf::FieldDescriptor* field, |
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bool is_const); |
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// Generate protos::Ptr<const Model> to be used in accessors as public
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// signatures.
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std::string MessagePtrConstType(const protobuf::FieldDescriptor* field, |
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bool is_const); |
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std::string MessageCProxyType(const protobuf::FieldDescriptor* field, |
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bool is_const); |
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std::string MessageProxyType(const protobuf::FieldDescriptor* field, |
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bool is_const); |
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} // namespace protos_generator
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#endif // UPB_PROTOS_GENERATOR_NAMES_H_
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