Annotation Glossary

A

allow-none

NULL is ok, both for passing and for returning.

array

Parameter points to an array of items.

C

closure

This parameter is a 'user_data', for callbacks; many bindings can pass NULL here.

E

element-type

Generics and defining elements of containers and arrays.

I

in

Parameter for input. Default is transfer none.

inout

Parameter for input and for returning results. Default is transfer full.

O

out

Parameter for returning results. Default is transfer full.

out callee-allocates

Out parameter, where caller must allocate storage.

out caller-allocates

Out parameter, where caller must allocate storage.

S

scope async

The callback is valid until first called.

scope call

The callback is valid only during the call to the method.

skip

Exposed in C code, not necessarily available in other languages.

T

transfer container

Free data container after the code is done.

transfer floating

Alias for transfer none, used for objects with floating refs.

transfer full

Free data after the code is done.

transfer none

Don't free data after the code is done.

type

Override the parsed C type with given type.