src/test/ui/lint/unreachable_pub-pub_crate.rs

   1 // This is just like unreachable_pub.rs, but without the
   2 // `crate_visibility_modifier` feature (so that we can test the suggestions to
   3 // use `pub(crate)` that are given when that feature is off, as opposed to the
   4 // suggestions to use `crate` given when it is on). When that feature becomes
   5 // stable, this test can be deleted.
   6
   7 // check-pass
   8
   9
  10 #![warn(unreachable_pub)]
  11
  12 mod private_mod {
  13     // non-leaked `pub` items in private module should be linted
  14     pub use std::fmt; //~ WARNING unreachable_pub
  15     pub use std::env::{Args}; // braced-use has different item spans than unbraced
  16     //~^ WARNING unreachable_pub
  17
  18     pub struct Hydrogen { //~ WARNING unreachable_pub
  19         // `pub` struct fields, too
  20         pub neutrons: usize, //~ WARNING unreachable_pub
  21         // (... but not more-restricted fields)
  22         pub(crate) electrons: usize
  23     }
  24     impl Hydrogen {
  25         // impls, too
  26         pub fn count_neutrons(&self) -> usize { self.neutrons } //~ WARNING unreachable_pub
  27         pub(crate) fn count_electrons(&self) -> usize { self.electrons }
  28     }
  29
  30     pub enum Helium {} //~ WARNING unreachable_pub
  31     pub union Lithium { c1: usize, c2: u8 } //~ WARNING unreachable_pub
  32     pub fn beryllium() {} //~ WARNING unreachable_pub
  33     pub trait Boron {} //~ WARNING unreachable_pub
  34     pub const CARBON: usize = 1; //~ WARNING unreachable_pub
  35     pub static NITROGEN: usize = 2; //~ WARNING unreachable_pub
  36     pub type Oxygen = bool; //~ WARNING unreachable_pub
  37
  38     macro_rules! define_empty_struct_with_visibility {
  39         ($visibility: vis, $name: ident) => { $visibility struct $name {} }
  40         //~^ WARNING unreachable_pub
  41     }
  42     define_empty_struct_with_visibility!(pub, Fluorine);
  43
  44     extern {
  45         pub fn catalyze() -> bool; //~ WARNING unreachable_pub
  46     }
  47
  48     // items leaked through signatures (see `get_neon` below) are OK
  49     pub struct Neon {}
  50
  51     // crate-visible items are OK
  52     pub(crate) struct Sodium {}
  53 }
  54
  55 pub mod public_mod {
  56     // module is public: these are OK, too
  57     pub struct Magnesium {}
  58     pub(crate) struct Aluminum {}
  59 }
  60
  61 pub fn get_neon() -> private_mod::Neon {
  62     private_mod::Neon {}
  63 }
  64
  65 fn main() {
  66     let _ = get_neon();
  67 }