src/tools/clippy/tests/ui/box_collection.rs

   1 #![warn(clippy::all)]
   2 #![allow(
   3     clippy::boxed_local,
   4     clippy::needless_pass_by_value,
   5     clippy::disallowed_names,
   6     unused
   7 )]
   8
   9 use std::collections::{BTreeMap, BTreeSet, BinaryHeap, HashMap, HashSet, LinkedList, VecDeque};
  10
  11 macro_rules! boxit {
  12     ($init:expr, $x:ty) => {
  13         let _: Box<$x> = Box::new($init);
  14     };
  15 }
  16
  17 fn test_macro() {
  18     boxit!(Vec::new(), Vec<u8>);
  19 }
  20
  21 fn test1(foo: Box<Vec<bool>>) {}
  22
  23 fn test2(foo: Box<dyn Fn(Vec<u32>)>) {
  24     // pass if #31 is fixed
  25     foo(vec![1, 2, 3])
  26 }
  27
  28 fn test3(foo: Box<String>) {}
  29
  30 fn test4(foo: Box<HashMap<String, String>>) {}
  31
  32 fn test5(foo: Box<HashSet<i64>>) {}
  33
  34 fn test6(foo: Box<VecDeque<i32>>) {}
  35
  36 fn test7(foo: Box<LinkedList<i16>>) {}
  37
  38 fn test8(foo: Box<BTreeMap<i8, String>>) {}
  39
  40 fn test9(foo: Box<BTreeSet<u64>>) {}
  41
  42 fn test10(foo: Box<BinaryHeap<u32>>) {}
  43
  44 fn test_local_not_linted() {
  45     let _: Box<Vec<bool>>;
  46 }
  47
  48 // All of these test should be allowed because they are part of the
  49 // public api and `avoid_breaking_exported_api` is `false` by default.
  50 pub fn pub_test(foo: Box<Vec<bool>>) {}
  51
  52 pub fn pub_test_ret() -> Box<Vec<bool>> {
  53     Box::new(Vec::new())
  54 }
  55
  56 fn main() {}