sys::Obj compilerJs::JsNode compilerJs::JsPodClosures
Every closure in JS requires that we create a
fan.sys.Func. The Func requires a
ClosureFuncSpec$ object that represents the closure specification for the Func.This class analyzes all closures for the pod and creates a static field for each unique ClosureFuncSpec it identifies.Then, when the actual closure Func is created and called, it uses that static field instead of creating a new one every time the closure is called.