the closure in Sodg::find_with_closure() should be able to return absolute coordinate of a vertex

[yegor256]

This should be possible:

use sodg::Sodg;
let mut g = Sodg::empty();
g.add(0).unwrap();
g.add(1).unwrap();
g.bind(0, 1, "foo").unwrap();
assert!(g.find(0, "bar").is_err());
let v = g.find_with_closure(0, "bar", |v, a, b| {
  assert_eq!(a, "bar");
  assert_eq!(b, "");
  Ok("ν1".to_string())
}).unwrap();
assert_eq!(1, v);

Here, the closure returns "ν1", which is the absolute coordinate of the vertex no.1.

[yegor256]

@UARTman can you please help?