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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.

N

nullable

NULL may be passed as the value in, out, in-out; or as a return value.

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 container

Free data container after the code is done.

transfer full

Free data after the code is done.

transfer none

Don't free data after the code is done.

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