anch::json::ReaderContext Class Reference

JSON reader context. More...

#include <readerContext.hpp>

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Public Member Functions
	ReaderContext ()=delete
	ReaderContext (const ReaderContext &context)=delete
	ReaderContext (ReaderContext &&context)=delete
	ReaderContext (std::istream &is, const anch::json::MappingOptions &options) noexcept
virtual	~ReaderContext () noexcept
char	discard ()
void	parseUnknown ()
bool	next (char &current)
void	back ()

Public Attributes
std::istream &	input
anch::json::MappingOptions	options
std::string	pbuf
uint32_t	offset
std::size_t	bufferSize
char *	buffer
std::size_t	read

Protected Member Functions
virtual std::streamsize	refillBuffer ()

Detailed Description

JSON reader context.

Context is used to store mapping options and deserialization buffers

Author

Vincent Lachenal

Since

0.1

Constructor & Destructor Documentation

ReaderContext() [1/4]

anch::json::ReaderContext::ReaderContext ( )

delete

Forbids ReaderContext default constructor

ReaderContext() [2/4]

anch::json::ReaderContext::ReaderContext ( const ReaderContext & context )

delete

Forbids ReaderContext copy constructor

Parameters

context

the context not to copy

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ReaderContext() [3/4]

anch::json::ReaderContext::ReaderContext ( ReaderContext && context )

delete

Forbids ReaderContext move constructor

Parameters

context

the context not to move

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ReaderContext() [4/4]

anch::json::ReaderContext::ReaderContext ( std::istream & is, const anch::json::MappingOptions & options )

noexcept

ReaderContext constructor

Parameters

is	the input stream to read
options	the mapping options to use

~ReaderContext()

virtual anch::json::ReaderContext::~ReaderContext ( )

virtualnoexcept

ReaderContext destructor
Delete buffers

Member Function Documentation

back()

void anch::json::ReaderContext::back

(

)

Go to previous character.

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discard()

char anch::json::ReaderContext::discard

(

)

Discard character until found undiscardable character or fail according to options

Returns

the next undiscardable character

Exceptions

anch::json::MappingError

potential overflow ...

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next()

bool anch::json::ReaderContext::next

(

char &

current

)

Get next character in buffer.
If buffer has reached its end, it will refill buffer with the input stream.

Parameters

current

the character to write in

Returns

true if buffer end has been reached

Exceptions

anch::json::MappingError

no more character available

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parseUnknown()

void anch::json::ReaderContext::parseUnknown

(

)

Parse unknown value or fail according to options

Exceptions

anch::json::MappingError

unknown fields are not allowed or parsing error

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refillBuffer()

virtual std::streamsize anch::json::ReaderContext::refillBuffer ( )

protectedvirtual

Refill buffer from input stream

Returns

the number of read characters

Reimplemented in anch::json::Reader, and Reader.

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Member Data Documentation

buffer

char* anch::json::ReaderContext::buffer

Parser buffer

bufferSize

std::size_t anch::json::ReaderContext::bufferSize

Parser buffer size (default to 1024)

input

std::istream& anch::json::ReaderContext::input

The input stream to parse

offset

uint32_t anch::json::ReaderContext::offset

The current offset

options

anch::json::MappingOptions anch::json::ReaderContext::options

Mapping options

pbuf

std::string anch::json::ReaderContext::pbuf

Primitive value buffer

read

std::size_t anch::json::ReaderContext::read

Global number of read characters

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

• anch-json/inc/json/readerContext.hpp