poco/JSON/include/Poco/JSON/Handler.h at develop · cppfool/poco · GitHub

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// Handler.h

// $Id$

// Library: JSON

// Package: JSON

// Module: Handler

// Definition of the Handler class.

// and Contributors.

// SPDX-License-Identifier: BSL-1.0

#ifndef JSON_Handler_INCLUDED

#define JSON_Handler_INCLUDED

#include "Poco/JSON/JSON.h"

#include "Poco/SharedPtr.h"

#include "Poco/Dynamic/Var.h"

#include "Poco/Dynamic/Struct.h"

namespace Poco {

namespace JSON {

class JSON_API Handler

{

public:

typedef SharedPtr<Handler> Ptr;

Handler();

/// Constructor;

virtual ~Handler();

/// Destructor

virtual void reset() = 0;

/// Resets the handler state.

virtual void startObject() = 0;

/// The parser has read a {, meaning a new object will be read

virtual void endObject() = 0;

/// The parser has read a }, meaning the object is read

virtual void startArray() = 0;

/// The parser has read a [, meaning a new array will be read

virtual void endArray() = 0;

/// The parser has read a ], meaning the array is read

virtual void key(const std::string& k) = 0;

/// A key of an object is read

virtual void null() = 0;

/// A null value is read

virtual void value(int v) = 0;

/// An integer value is read

virtual void value(unsigned v) = 0;

/// An unsigned value is read. This will only be triggered if the

/// value cannot fit into a signed int.

#if defined(POCO_HAVE_INT64)

virtual void value(Int64 v) = 0;

/// A 64-bit integer value is read

virtual void value(UInt64 v) = 0;

/// An unsigned 64-bit integer value is read. This will only be

/// triggered if the value cannot fit into a signed 64-bit integer.

#endif

virtual void value(const std::string& value) = 0;

/// A string value is read.

virtual void value(double d) = 0;

/// A double value is read

virtual void value(bool b) = 0;

/// A boolean value is read

virtual Poco::Dynamic::Var asVar() const;

/// Returns the result of the parser (an object, array or string),

/// empty Var if there is no result.

virtual Poco::DynamicStruct asStruct() const;

/// Returns the result of the parser (an object, array or string),

/// empty Var if there is no result.

};

}} // namespace Poco::JSON

#endif // JSON_Handler_INCLUDED

poco/JSON/include/Poco/JSON/Handler.h at develop · cppfool/poco · GitHub

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