83 lines
2.7 KiB
C++
83 lines
2.7 KiB
C++
/* Copyright 2017 The TensorFlow Authors. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==============================================================================*/
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#ifndef TENSORFLOW_LITE_TESTING_MESSAGE_H_
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#define TENSORFLOW_LITE_TESTING_MESSAGE_H_
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#include <memory>
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#include <string>
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#include <vector>
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namespace tflite {
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namespace testing {
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// A Message is a textual protobuf-like structure that looks like:
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// tag {
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// f : "values"
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// child {
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// a : 1
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// }
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// }
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// This class provides the framework for processing message but does not
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// associate any particular behavior to fields and submessage. In order
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// to properly parse a stream this class must be derived.
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class Message {
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public:
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// Reads a stream, tokenizes it and create a new message under the given
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// top-level message. Returns true if the parsing succeeded.
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static bool Read(std::istream* input, Message* message);
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Message() {}
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virtual ~Message() {}
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// Called when a new field is found. For example, when:
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// f : "values"
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// is found, it triggers:
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// SetField("f", "values");
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virtual void SetField(const std::string& name, const std::string& value) {}
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// Called when a submessage is started. For example, when:
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// child {
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// is found, it triggers
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// AddChild("child");
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// If nullptr is returned, the contents of the submessage will be ignored.
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// Otherwise, the returned Message will be used to handle new fields and new
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// submessages. The caller should not take ownership of the returned pointer.
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virtual Message* AddChild(const std::string& name) { return nullptr; }
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// Called when a submessage is completed, that is, whenever a '}' is found.
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virtual void Finish() {}
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protected:
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// Takes ownership of the given pointer. Subclasses can use this method if
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// they don't want to implement their own ownership semantics.
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Message* Store(Message* n) {
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children_.emplace_back(n);
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return n;
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}
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// Returns a list of all owned submessages.
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const std::vector<std::unique_ptr<Message>>& Children() const {
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return children_;
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}
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private:
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std::vector<std::unique_ptr<Message>> children_;
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};
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} // namespace testing
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} // namespace tflite
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#endif // TENSORFLOW_LITE_TESTING_MESSAGE_H_
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