src/test/run-make-fulldeps/instrument-coverage-llvm-ir-base/testprog.rs

   1 pub fn will_be_called() -> &'static str {
   2     let val = "called";
   3     println!("{}", val);
   4     val
   5 }
   6
   7 pub fn will_not_be_called() -> bool {
   8     println!("should not have been called");
   9     false
  10 }
  11
  12 pub fn print<T>(left: &str, value: T, right: &str)
  13 where
  14     T: std::fmt::Display,
  15 {
  16     println!("{}{}{}", left, value, right);
  17 }
  18
  19 pub fn wrap_with<F, T>(inner: T, should_wrap: bool, wrapper: F)
  20 where
  21     F: FnOnce(&T)
  22 {
  23     if should_wrap {
  24         wrapper(&inner)
  25     }
  26 }
  27
  28 fn main() {
  29     let less = 1;
  30     let more = 100;
  31
  32     if less < more {
  33         wrap_with(will_be_called(), less < more, |inner| print(" ***", inner, "*** "));
  34         wrap_with(will_be_called(), more < less, |inner| print(" ***", inner, "*** "));
  35     } else {
  36         wrap_with(will_not_be_called(), true, |inner| print("wrapped result is: ", inner, ""));
  37     }
  38 }