Query

Identifies a component boundary. join is applied to the current cursor and child yielding a continuation query which will be evaluated by the interpreter identified by componentId.

A deferred query. join is applied to the current cursor and child yielding a continuation query which will be evaluated by the current interpreter in its next stage.

The terminal query

Retains only elements satisfying pred and continuse with child

A Group of sibling queries at the same level

A Group of sibling queries as a list

The result of child if the focus is of type subtpe, Empty otherwise.

Rename the topmost field of sel to name.

Select field name given arguments args and continue with child

Picks out the unique element satisfying pred and continues with child

Untyped precursor of Narrow.

Trees of this type will be replaced by a corresponding Narrow by SelectElaborator.

Wraps the result of child as a field named name of an enclosing object.

The names of the product elements

The name of the type