98 lines
4.0 KiB
C++
98 lines
4.0 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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#ifndef GOOGLE_PROTOBUF_UTIL_INTERNAL_TYPE_INFO_H__
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#define GOOGLE_PROTOBUF_UTIL_INTERNAL_TYPE_INFO_H__
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#include <google/protobuf/stubs/common.h>
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#include <google/protobuf/type.pb.h>
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#include <google/protobuf/stubs/statusor.h>
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#include <google/protobuf/stubs/strutil.h>
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#include <google/protobuf/util/type_resolver.h>
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#include <google/protobuf/stubs/status.h>
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// Must be included last.
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#include <google/protobuf/port_def.inc>
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namespace google {
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namespace protobuf {
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namespace util {
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namespace converter {
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// Internal helper class for type resolving. Note that this class is not
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// thread-safe and should only be accessed in one thread.
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class PROTOBUF_EXPORT TypeInfo {
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public:
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TypeInfo() {}
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virtual ~TypeInfo() {}
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// Resolves a type url into a Type. If the type url is invalid, returns
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// INVALID_ARGUMENT error status. If the type url is valid but the
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// corresponding type cannot be found, returns a NOT_FOUND error status.
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//
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// This TypeInfo class retains the ownership of the returned pointer.
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virtual util::StatusOr<const google::protobuf::Type*> ResolveTypeUrl(
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StringPiece type_url) const = 0;
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// Resolves a type url into a Type. Like ResolveTypeUrl() but returns
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// NULL if the type url is invalid or the type cannot be found.
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//
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// This TypeInfo class retains the ownership of the returned pointer.
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virtual const google::protobuf::Type* GetTypeByTypeUrl(
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StringPiece type_url) const = 0;
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// Resolves a type url for an enum. Returns NULL if the type url is
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// invalid or the type cannot be found.
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//
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// This TypeInfo class retains the ownership of the returned pointer.
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virtual const google::protobuf::Enum* GetEnumByTypeUrl(
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StringPiece type_url) const = 0;
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// Looks up a field in the specified type given a CamelCase name.
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virtual const google::protobuf::Field* FindField(
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const google::protobuf::Type* type,
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StringPiece camel_case_name) const = 0;
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// Creates a TypeInfo object that looks up type information from a
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// TypeResolver. Caller takes ownership of the returned pointer.
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static TypeInfo* NewTypeInfo(TypeResolver* type_resolver);
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private:
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GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(TypeInfo);
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};
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} // namespace converter
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} // namespace util
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} // namespace protobuf
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} // namespace google
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#include <google/protobuf/port_undef.inc>
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#endif // GOOGLE_PROTOBUF_UTIL_INTERNAL_TYPE_INFO_H__
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