Closure

sealed case class Closure(arrow: Boolean, captureParams: List[ParamDef], params: List[ParamDef], restParam: Option[ParamDef], body: Tree, captureValues: List[Tree])(implicit pos: Position) extends Tree

Closure with explicit captures.

Value parameters:

arrow: If true, the closure is an Arrow Function (=>), which does not have an this parameter, and cannot be constructed (called with new). If false, it is a regular Function (function).