NewChain creates a new chain of hooks.

On executes the given hook only of the given operation.

Reject returns a hook that rejects all operations that match op.

Chain acts as a list of hooks and is effectively immutable.

The GlobalsettingsFunc type is an adapter to allow the use of ordinary function as Globalsettings mutator.

The PostFunc type is an adapter to allow the use of ordinary function as Post mutator.

The SourceFunc type is an adapter to allow the use of ordinary function as Source mutator.

The UserFunc type is an adapter to allow the use of ordinary function as User mutator.

The UserSettingsFunc type is an adapter to allow the use of ordinary function as UserSettings mutator.