Destructor for structs

New to Julia
1

Does Julia lang has something like a destructor or finalizer for structs?

2

There are finalizers:

help?> finalizer
search: finalizer UndefInitializer finalize

  finalizer(f, x)

  Register a function f(x) to be called when there are no program-accessible references to x, and return x. The type of x must be a mutable struct, otherwise the
  behavior of this function is unpredictable.

  f must not cause a task switch, which excludes most I/O operations such as println. @schedule println("message") or ccall(:jl_, Cvoid, (Any,), "message") may be
  helpful for debugging purposes.
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3

Note that the help message is not correct and has been replaced in the master documentation.