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juce::FromVar Class Reference

`#include <juce_JSONSerialisation.h>`

## Static Public Member Functions

template<typename T>
static std::optional< T > | convert (const var &v)

## Detailed Description

Allows converting a var to an object of arbitrary type.

To use this, you must first ensure that the type passed to convert is set up for serialisation. For details of what this entails, see the docs for SerialisationTraits.

In short, the constant 'marshallingVersion', and either the single function 'serialise()', or the function pair 'load()' and 'save()' must be defined for the type. These may be defined as public members of the type T itself, or as public members of juce::SerialisationTraits<T>, which is a specialisation of the SerialisationTraits template struct for the type T.

See also
  ToVar

Definition at line 259 of file juce_JSONSerialisation.h.

## Member Function Documentation

## convert()

template<typename T>

std::optional< T > juce::FromVar::convert | ( | const var & | v | ) |

inline static

Attempts to convert a var to an instance of type T.

This will return a non-null optional if conversion succeeds, or nullopt if conversion fails.

Definition at line 267 of file juce_JSONSerialisation.h.

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

- juce_JSONSerialisation.h