Annotation Glossary

A

allow-none

NULL is OK, both for passing and for returning.

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.

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.

U

Unstable

Unstable interfaces are experimental or transitional. They are typically used to give outside developers early access to new or rapidly changing technology, or to provide an interim solution to a problem where a more general solution is anticipated. No claims are made about either source or binary compatibility from one minor release to the next. The Unstable interface level is a warning that these interfaces are subject to change without warning and should not be used in unbundled products. Given such caveats, customer impact need not be a factor when considering incompatible changes to an Unstable interface in a major or minor release. Nonetheless, when such changes are introduced, the changes should still be mentioned in the release notes for the affected release.