juce::JSONUtils Struct Reference

Detailed Description

A mini namespace to hold utility functions for working with juce::vars.

Public Member Functions
	JSONUtils ()=delete
	No constructor.

Static Public Member Functions
static std::optional< var >	setPointer (const var &v, String pointer, const var &newValue)
	Given a JSON array/object 'v', a string representing a JSON pointer, and a new property value 'newValue', returns a copy of 'v' where the property or array index referenced by the pointer has been set to 'newValue'.
static var	makeObject (const std::map< Identifier, var > &source)
	Converts the provided key/value pairs into a JSON object.
static var	makeObjectWithKeyFirst (const std::map< Identifier, var > &source, Identifier key)
	Converts the provided key/value pairs into a JSON object with the provided key at the first position in the object.
static bool	deepEqual (const var &a, const var &b)
	Returns true if and only if the contents of a match the contents of b.

Constructors and Destructors

JSONUtils()

juce::JSONUtils::JSONUtils ( )

delete

No constructor.

Member Functions

setPointer()

std::optional< var > juce::JSONUtils::setPointer ( const var & v, String pointer, const var & newValue )

static

Given a JSON array/object 'v', a string representing a JSON pointer, and a new property value 'newValue', returns a copy of 'v' where the property or array index referenced by the pointer has been set to 'newValue'.

If the pointer cannot be followed, due to referencing missing array indices or fields, then this returns nullopt.

For more details, check the JSON Pointer RFC 6901: https://datatracker.ietf.org/doc/html/rfc6901

makeObject()

var juce::JSONUtils::makeObject ( const std::map< Identifier, var > & source )

static

Converts the provided key/value pairs into a JSON object.

makeObjectWithKeyFirst()

var juce::JSONUtils::makeObjectWithKeyFirst ( const std::map< Identifier, var > & source, Identifier key )

static

Converts the provided key/value pairs into a JSON object with the provided key at the first position in the object.

This is useful because the MIDI-CI spec requires that certain fields (e.g. status) should be placed at the beginning of a MIDI-CI header.

deepEqual()

bool juce::JSONUtils::deepEqual ( const var & a, const var & b )

static

Returns true if and only if the contents of a match the contents of b.

Unlike var::operator==, this will recursively check that contained DynamicObject and Array instances compare equal.