Add primitives.
List of primitives.
Declare new block, used by extension.
Get a list of elements whose scope includes given block.
A block accessing elements, getter or setter.
List of elements accessible.
Type of each block.
Whether an element should be included. Passed argument will be the corresponding declaration block. By default, any existing block(non-null block) will be allowed.
XML element list for category callback.
List of something dynamically generated by a declaration block. Typical example is local variable.