JUCE: FromVar Class Reference

JUCE

- Main Page
- Related Pages
- Topics
- Classes
- Files

- Class List
- Class Index
- Class Hierarchy
- Class Members

Loading...
Searching...
No Matches
Static Public Member Functions | List of all members
FromVar Class Reference
juce_core » javascript

Allows converting a var to an object of arbitrary type. More...

`#include <juce_JSONSerialisation.h>`

## Static Public Member Functions
template<typename T >
static std::optional< T > | convert (const var &v)
| Attempts to convert a var to an instance of type T.

## 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

## Member Function Documentation

## ◆ convert()

template<typename T >

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

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

- juce_JSONSerialisation.h