STACKCHECK

Stackcheck is a Go static analysis tool that checks that a set of
functions can only be reached through a given function. This is useful
for cases where you want to ensure that calls happen on a goroutine,
or that you don't have lock inversion.

EXAMPLE:

	package main

	func main() {
		f()
		g()
	}

	func f() {
		// stackcheck: root foo
		g()
	}

	func g() {
		// stackcheck: foo
	}

Passed to stackcheck, it will check that g() is only called by f and
its callees.

WARNING:

I cooked this up as an example of how you can use static analysis
to make your life easier, but I will not make any guarantees that
it will actually make your life easier. The search logic is probably
broken on edge cases, The output formatting is atrocious and the way
to specify packages is janky. Use at own risk.