Annotation Glossary

C

closure

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

D

destroy

This parameter is a 'destroy_data', for callbacks.

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

optional

NULL may be passed instead of a pointer to a location.

out

Parameter for returning results. Default is transfer full.

R

rename-to

Rename the original symbol's name to SYMBOL.

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 full

The caller owns the data, and is responsible for free it.

transfer none

The data is owned by the callee, which is responsible of freeing it.