react-native/ReactCommon/fabric/debug/DebugStringConvertible.h

60 lines
2.1 KiB
C++

/**
* Copyright (c) 2015-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#pragma once
#include <string>
#include <vector>
namespace facebook {
namespace react {
class DebugStringConvertible;
using SharedDebugStringConvertible = std::shared_ptr<const DebugStringConvertible>;
using SharedDebugStringConvertibleList = std::vector<const SharedDebugStringConvertible>;
// Abstract class describes conformance to DebugStringConvertible concept
// and implements basic recursive debug string assembly algorithm.
// Use this as a base class for providing a debugging textual representation
// of your class.
// TODO (#26770211): Clear up the naming.
class DebugStringConvertible {
public:
// Returns a name of the object.
// Default implementation returns "Node".
virtual std::string getDebugName() const;
// Returns a value assosiate with the object.
// Default implementation returns an empty string.
virtual std::string getDebugValue() const;
// Returns a list of `DebugStringConvertible` objects which can be considered
// as *children* of the object.
// Default implementation returns an empty list.
virtual SharedDebugStringConvertibleList getDebugChildren() const;
// Returns a list of `DebugStringConvertible` objects which can be considered
// as *properties* of the object.
// Default implementation returns an empty list.
virtual SharedDebugStringConvertibleList getDebugProps() const;
// Returns a string which represents the object in a human-readable way.
// Default implementation returns a description of the subtree
// rooted at this node, represented in XML-like format.
virtual std::string getDebugDescription(int level = 0) const;
// Do same as `getDebugDescription` but return only *children* and
// *properties* parts (which are used in `getDebugDescription`).
virtual std::string getDebugPropsDescription(int level = 0) const;
virtual std::string getDebugChildrenDescription(int level = 0) const;
};
} // namespace react
} // namespace facebook