SAX implementation to create a JSON value from SAX events. More...

#include <json.hpp>

Collaboration diagram for json_sax_dom_parser< BasicJsonType, InputAdapterType >:

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Public Types
using	number_integer_t = typename BasicJsonType::number_integer_t

using	number_unsigned_t = typename BasicJsonType::number_unsigned_t

using	number_float_t = typename BasicJsonType::number_float_t

using	string_t = typename BasicJsonType::string_t

using	binary_t = typename BasicJsonType::binary_t

using	lexer_t = lexer< BasicJsonType, InputAdapterType >

Public Member Functions
	json_sax_dom_parser (BasicJsonType &r, const bool allow_exceptions_=true, lexer_t *lexer_=nullptr)

	json_sax_dom_parser (const json_sax_dom_parser &)=delete

	json_sax_dom_parser (json_sax_dom_parser &&)=default

json_sax_dom_parser &	operator= (const json_sax_dom_parser &)=delete

json_sax_dom_parser &	operator= (json_sax_dom_parser &&)=default

	~json_sax_dom_parser ()=default

bool	null ()

bool	boolean (bool val)

bool	number_integer (number_integer_t val)

bool	number_unsigned (number_unsigned_t val)

bool	number_float (number_float_t val, const string_t &)

bool	string (string_t &val)

bool	binary (binary_t &val)

bool	start_object (std::size_t len)

bool	key (string_t &val)

bool	end_object ()

bool	start_array (std::size_t len)

bool	end_array ()

template<class Exception >
bool	parse_error (std::size_t, const std::string &, const Exception &ex)

constexpr bool	is_errored () const

Private Member Functions
template<typename Value >
JSON_HEDLEY_RETURNS_NON_NULL BasicJsonType *	handle_value (Value &&v)

Private Attributes
BasicJsonType &	root
	the parsed JSON value

std::vector< BasicJsonType * >	ref_stack {}
	stack to model hierarchy of values

BasicJsonType *	object_element = nullptr
	helper to hold the reference for the next object element

bool	errored = false
	whether a syntax error occurred

const bool	allow_exceptions = true
	whether to throw exceptions in case of errors

lexer_t *	m_lexer_ref = nullptr
	the lexer reference to obtain the current position

Detailed Description

template<typename BasicJsonType, typename InputAdapterType>
class detail::json_sax_dom_parser< BasicJsonType, InputAdapterType >

SAX implementation to create a JSON value from SAX events.

This class implements the json_sax interface and processes the SAX events to create a JSON value which makes it basically a DOM parser. The structure or hierarchy of the JSON value is managed by the stack ref_stack which contains a pointer to the respective array or object for each recursion depth.

After successful parsing, the value that is passed by reference to the constructor contains the parsed value.

Template Parameters

BasicJsonType the JSON type

Definition at line 8817 of file json.hpp.

Member Typedef Documentation

◆ binary_t

template<typename BasicJsonType , typename InputAdapterType >

using binary_t = typename BasicJsonType::binary_t

Definition at line 8824 of file json.hpp.

◆ lexer_t

template<typename BasicJsonType , typename InputAdapterType >

using lexer_t = lexer<BasicJsonType, InputAdapterType>

Definition at line 8825 of file json.hpp.

◆ number_float_t

template<typename BasicJsonType , typename InputAdapterType >

using number_float_t = typename BasicJsonType::number_float_t

Definition at line 8822 of file json.hpp.

◆ number_integer_t

template<typename BasicJsonType , typename InputAdapterType >

using number_integer_t = typename BasicJsonType::number_integer_t

Definition at line 8820 of file json.hpp.

◆ number_unsigned_t

template<typename BasicJsonType , typename InputAdapterType >

using number_unsigned_t = typename BasicJsonType::number_unsigned_t

Definition at line 8821 of file json.hpp.

◆ string_t

template<typename BasicJsonType , typename InputAdapterType >

using string_t = typename BasicJsonType::string_t

Definition at line 8823 of file json.hpp.

Constructor & Destructor Documentation

◆ json_sax_dom_parser() [1/3]

template<typename BasicJsonType , typename InputAdapterType >

json_sax_dom_parser	(	BasicJsonType &	r,
		const bool	allow_exceptions_ = `true`,
		lexer_t *	lexer_ = `nullptr`
	)

inlineexplicit

Parameters

[in,out]	r	reference to a JSON value that is manipulated while parsing
[in]	allow_exceptions_	whether parse errors yield exceptions

Definition at line 8832 of file json.hpp.

◆ json_sax_dom_parser() [2/3]

template<typename BasicJsonType , typename InputAdapterType >

json_sax_dom_parser ( const json_sax_dom_parser< BasicJsonType, InputAdapterType > & )

delete

◆ json_sax_dom_parser() [3/3]

template<typename BasicJsonType , typename InputAdapterType >

json_sax_dom_parser ( json_sax_dom_parser< BasicJsonType, InputAdapterType > && )

default

◆ ~json_sax_dom_parser()

template<typename BasicJsonType , typename InputAdapterType >

~json_sax_dom_parser ( )

default

Member Function Documentation

◆ binary()

template<typename BasicJsonType , typename InputAdapterType >

bool binary ( binary_t & val )

inline

Definition at line 8879 of file json.hpp.

◆ boolean()

template<typename BasicJsonType , typename InputAdapterType >

bool boolean ( bool val )

inline

Definition at line 8849 of file json.hpp.

◆ end_array()

template<typename BasicJsonType , typename InputAdapterType >

bool end_array ( )

inline

Definition at line 8957 of file json.hpp.

References JSON_ASSERT.

◆ end_object()

template<typename BasicJsonType , typename InputAdapterType >

bool end_object ( )

inline

Definition at line 8918 of file json.hpp.

References JSON_ASSERT.

◆ handle_value()

template<typename BasicJsonType , typename InputAdapterType >

template<typename Value >

JSON_HEDLEY_RETURNS_NON_NULL BasicJsonType * handle_value ( Value && v )

inlineprivate

Invariant: If the ref stack is empty, then the passed value will be the new root.; If the ref stack contains a value, then it is an array or an object to which we can add elements

Definition at line 9071 of file json.hpp.

References JSON_ASSERT.

◆ is_errored()

template<typename BasicJsonType , typename InputAdapterType >

constexpr bool is_errored ( ) const

inlineconstexpr

Definition at line 8988 of file json.hpp.

Referenced by parser< BasicJsonType, InputAdapterType >::parse().

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◆ key()

template<typename BasicJsonType , typename InputAdapterType >

bool key ( string_t & val )

inline

Definition at line 8908 of file json.hpp.

References JSON_ASSERT.

◆ null()

template<typename BasicJsonType , typename InputAdapterType >

bool null ( )

inline

Definition at line 8843 of file json.hpp.

◆ number_float()

template<typename BasicJsonType , typename InputAdapterType >

bool number_float	(	number_float_t	val,
		const string_t &
	)

inline

Definition at line 8867 of file json.hpp.

◆ number_integer()

template<typename BasicJsonType , typename InputAdapterType >

bool number_integer ( number_integer_t val )

inline

Definition at line 8855 of file json.hpp.

◆ number_unsigned()

template<typename BasicJsonType , typename InputAdapterType >

bool number_unsigned ( number_unsigned_t val )

inline

Definition at line 8861 of file json.hpp.

◆ operator=() [1/2]

template<typename BasicJsonType , typename InputAdapterType >

json_sax_dom_parser & operator= ( const json_sax_dom_parser< BasicJsonType, InputAdapterType > & )

delete

◆ operator=() [2/2]

template<typename BasicJsonType , typename InputAdapterType >

json_sax_dom_parser & operator= ( json_sax_dom_parser< BasicJsonType, InputAdapterType > && )

default

◆ parse_error()

template<typename BasicJsonType , typename InputAdapterType >

template<class Exception >

bool parse_error	(	std::size_t	,
		const std::string &	,
		const Exception &	ex
	)

inline

Definition at line 8976 of file json.hpp.

References JSON_THROW.

Referenced by parser< BasicJsonType, InputAdapterType >::parse().

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◆ start_array()

template<typename BasicJsonType , typename InputAdapterType >

bool start_array ( std::size_t len )

inline

Definition at line 8936 of file json.hpp.

References detail::concat(), JSON_HEDLEY_UNLIKELY, JSON_THROW, and detail::unknown_size().

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◆ start_object()

template<typename BasicJsonType , typename InputAdapterType >

bool start_object ( std::size_t len )

inline

Definition at line 8885 of file json.hpp.

References detail::concat(), JSON_HEDLEY_UNLIKELY, JSON_THROW, and detail::unknown_size().

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◆ string()

template<typename BasicJsonType , typename InputAdapterType >

bool string ( string_t & val )

inline

Definition at line 8873 of file json.hpp.

Member Data Documentation

◆ allow_exceptions

template<typename BasicJsonType , typename InputAdapterType >

const bool allow_exceptions = true

private

whether to throw exceptions in case of errors

Definition at line 9117 of file json.hpp.

◆ errored

template<typename BasicJsonType , typename InputAdapterType >

bool errored = false

private

whether a syntax error occurred

Definition at line 9115 of file json.hpp.

◆ m_lexer_ref

template<typename BasicJsonType , typename InputAdapterType >

lexer_t* m_lexer_ref = nullptr

private

the lexer reference to obtain the current position

Definition at line 9119 of file json.hpp.

◆ object_element

template<typename BasicJsonType , typename InputAdapterType >

BasicJsonType* object_element = nullptr

private

helper to hold the reference for the next object element

Definition at line 9113 of file json.hpp.

◆ ref_stack

template<typename BasicJsonType , typename InputAdapterType >

std::vector<BasicJsonType*> ref_stack {}

private

stack to model hierarchy of values

Definition at line 9111 of file json.hpp.

◆ root

template<typename BasicJsonType , typename InputAdapterType >

BasicJsonType& root

private

the parsed JSON value

Definition at line 9109 of file json.hpp.

The documentation for this class was generated from the following file:

share/json.hpp

Public Types

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

◆ binary_t

◆ lexer_t

◆ number_float_t

◆ number_integer_t

◆ number_unsigned_t

◆ string_t

Constructor & Destructor Documentation

◆ json_sax_dom_parser() [1/3]

◆ json_sax_dom_parser() [2/3]

◆ json_sax_dom_parser() [3/3]

◆ ~json_sax_dom_parser()

Member Function Documentation

◆ binary()

◆ boolean()

◆ end_array()

◆ end_object()

◆ handle_value()

◆ is_errored()

◆ key()

◆ null()

◆ number_float()

◆ number_integer()

◆ number_unsigned()

◆ operator=() [1/2]

◆ operator=() [2/2]

◆ parse_error()

◆ start_array()

◆ start_object()

◆ string()

Member Data Documentation

◆ allow_exceptions

◆ errored

◆ m_lexer_ref

◆ object_element

◆ ref_stack

◆ root