SheathLeafClauses

The state produced in some child clause by the sheathLeaf function is essentially "consumed" by the elaborateSheath function in the parent.

Note that in the documentation is use a couple of shorthands:

M - means Map Fm - means FlatMap ent - means a Ast Query. Typically just a Ast Entity e.v - this dot-shorthand means Property(e, v) where e is an Ast Ident. This is essentially a scalar-projection from the entity e. leaf - Typically this is a query-ast clause that results in a scalar type. It could be M(ent,e,e.v) or an sql"stuff".as[Query[Int/String/Boolean/etc...] ]