rust-clippy/tests/ui/unnecessary_lazy_eval.stderr

error: unnecessary closure used to substitute value for `Option::None`
  --> $DIR/unnecessary_lazy_eval.rs:36:13
   |
LL |     let _ = opt.unwrap_or_else(|| 2);
   |             ^^^^--------------------
   |                 |
   |                 help: use `unwrap_or(..)` instead: `unwrap_or(2)`
   |
   = note: `-D clippy::unnecessary-lazy-evaluations` implied by `-D warnings`

error: unnecessary closure used to substitute value for `Option::None`
  --> $DIR/unnecessary_lazy_eval.rs:37:13
   |
LL |     let _ = opt.unwrap_or_else(|| astronomers_pi);
   |             ^^^^---------------------------------
   |                 |
   |                 help: use `unwrap_or(..)` instead: `unwrap_or(astronomers_pi)`

error: unnecessary closure used to substitute value for `Option::None`
  --> $DIR/unnecessary_lazy_eval.rs:38:13
   |
LL |     let _ = opt.unwrap_or_else(|| ext_str.some_field);
   |             ^^^^-------------------------------------
   |                 |
   |                 help: use `unwrap_or(..)` instead: `unwrap_or(ext_str.some_field)`

error: unnecessary closure used to substitute value for `Option::None`
  --> $DIR/unnecessary_lazy_eval.rs:40:13
   |
LL |     let _ = opt.and_then(|_| ext_opt);
   |             ^^^^---------------------
   |                 |
   |                 help: use `and(..)` instead: `and(ext_opt)`

error: unnecessary closure used to substitute value for `Option::None`
  --> $DIR/unnecessary_lazy_eval.rs:41:13
   |
LL |     let _ = opt.or_else(|| ext_opt);
   |             ^^^^-------------------
   |                 |
   |                 help: use `or(..)` instead: `or(ext_opt)`

error: unnecessary closure used to substitute value for `Option::None`
  --> $DIR/unnecessary_lazy_eval.rs:42:13
   |
LL |     let _ = opt.or_else(|| None);
   |             ^^^^----------------
   |                 |
   |                 help: use `or(..)` instead: `or(None)`

error: unnecessary closure used to substitute value for `Option::None`
  --> $DIR/unnecessary_lazy_eval.rs:43:13
   |
LL |     let _ = opt.get_or_insert_with(|| 2);
   |             ^^^^------------------------
   |                 |
   |                 help: use `get_or_insert(..)` instead: `get_or_insert(2)`

error: unnecessary closure used to substitute value for `Option::None`
  --> $DIR/unnecessary_lazy_eval.rs:44:13
   |
LL |     let _ = opt.ok_or_else(|| 2);
   |             ^^^^----------------
   |                 |
   |                 help: use `ok_or(..)` instead: `ok_or(2)`

error: unnecessary closure used to substitute value for `Option::None`
  --> $DIR/unnecessary_lazy_eval.rs:45:13
   |
LL |     let _ = nested_tuple_opt.unwrap_or_else(|| Some((1, 2)));
   |             ^^^^^^^^^^^^^^^^^-------------------------------
   |                              |
   |                              help: use `unwrap_or(..)` instead: `unwrap_or(Some((1, 2)))`

error: unnecessary closure used with `bool::then`
  --> $DIR/unnecessary_lazy_eval.rs:46:13
   |
LL |     let _ = cond.then(|| astronomers_pi);
   |             ^^^^^-----------------------
   |                  |
   |                  help: use `then_some(..)` instead: `then_some(astronomers_pi)`

error: unnecessary closure used to substitute value for `Option::None`
  --> $DIR/unnecessary_lazy_eval.rs:49:13
   |
LL |     let _ = Some(10).unwrap_or_else(|| 2);
   |             ^^^^^^^^^--------------------
   |                      |
   |                      help: use `unwrap_or(..)` instead: `unwrap_or(2)`

error: unnecessary closure used to substitute value for `Option::None`
  --> $DIR/unnecessary_lazy_eval.rs:50:13
   |
LL |     let _ = Some(10).and_then(|_| ext_opt);
   |             ^^^^^^^^^---------------------
   |                      |
   |                      help: use `and(..)` instead: `and(ext_opt)`

error: unnecessary closure used to substitute value for `Option::None`
  --> $DIR/unnecessary_lazy_eval.rs:51:28
   |
LL |     let _: Option<usize> = None.or_else(|| ext_opt);
   |                            ^^^^^-------------------
   |                                 |
   |                                 help: use `or(..)` instead: `or(ext_opt)`

error: unnecessary closure used to substitute value for `Option::None`
  --> $DIR/unnecessary_lazy_eval.rs:52:13
   |
LL |     let _ = None.get_or_insert_with(|| 2);
   |             ^^^^^------------------------
   |                  |
   |                  help: use `get_or_insert(..)` instead: `get_or_insert(2)`

error: unnecessary closure used to substitute value for `Option::None`
  --> $DIR/unnecessary_lazy_eval.rs:53:35
   |
LL |     let _: Result<usize, usize> = None.ok_or_else(|| 2);
   |                                   ^^^^^----------------
   |                                        |
   |                                        help: use `ok_or(..)` instead: `ok_or(2)`

error: unnecessary closure used to substitute value for `Option::None`
  --> $DIR/unnecessary_lazy_eval.rs:54:28
   |
LL |     let _: Option<usize> = None.or_else(|| None);
   |                            ^^^^^----------------
   |                                 |
   |                                 help: use `or(..)` instead: `or(None)`

error: unnecessary closure used to substitute value for `Option::None`
  --> $DIR/unnecessary_lazy_eval.rs:57:13
   |
LL |     let _ = deep.0.unwrap_or_else(|| 2);
   |             ^^^^^^^--------------------
   |                    |
   |                    help: use `unwrap_or(..)` instead: `unwrap_or(2)`

error: unnecessary closure used to substitute value for `Option::None`
  --> $DIR/unnecessary_lazy_eval.rs:58:13
   |
LL |     let _ = deep.0.and_then(|_| ext_opt);
   |             ^^^^^^^---------------------
   |                    |
   |                    help: use `and(..)` instead: `and(ext_opt)`

error: unnecessary closure used to substitute value for `Option::None`
  --> $DIR/unnecessary_lazy_eval.rs:59:13
   |
LL |     let _ = deep.0.or_else(|| None);
   |             ^^^^^^^----------------
   |                    |
   |                    help: use `or(..)` instead: `or(None)`

error: unnecessary closure used to substitute value for `Option::None`
  --> $DIR/unnecessary_lazy_eval.rs:60:13
   |
LL |     let _ = deep.0.get_or_insert_with(|| 2);
   |             ^^^^^^^------------------------
   |                    |
   |                    help: use `get_or_insert(..)` instead: `get_or_insert(2)`

error: unnecessary closure used to substitute value for `Option::None`
  --> $DIR/unnecessary_lazy_eval.rs:61:13
   |
LL |     let _ = deep.0.ok_or_else(|| 2);
   |             ^^^^^^^----------------
   |                    |
   |                    help: use `ok_or(..)` instead: `ok_or(2)`

error: unnecessary closure used to substitute value for `Option::None`
  --> $DIR/unnecessary_lazy_eval.rs:81:28
   |
LL |     let _: Option<usize> = None.or_else(|| Some(3));
   |                            ^^^^^-------------------
   |                                 |
   |                                 help: use `or(..)` instead: `or(Some(3))`

error: unnecessary closure used to substitute value for `Option::None`
  --> $DIR/unnecessary_lazy_eval.rs:82:13
   |
LL |     let _ = deep.0.or_else(|| Some(3));
   |             ^^^^^^^-------------------
   |                    |
   |                    help: use `or(..)` instead: `or(Some(3))`

error: unnecessary closure used to substitute value for `Option::None`
  --> $DIR/unnecessary_lazy_eval.rs:83:13
   |
LL |     let _ = opt.or_else(|| Some(3));
   |             ^^^^-------------------
   |                 |
   |                 help: use `or(..)` instead: `or(Some(3))`

error: unnecessary closure used to substitute value for `Result::Err`
  --> $DIR/unnecessary_lazy_eval.rs:89:13
   |
LL |     let _ = res2.unwrap_or_else(|_| 2);
   |             ^^^^^---------------------
   |                  |
   |                  help: use `unwrap_or(..)` instead: `unwrap_or(2)`

error: unnecessary closure used to substitute value for `Result::Err`
  --> $DIR/unnecessary_lazy_eval.rs:90:13
   |
LL |     let _ = res2.unwrap_or_else(|_| astronomers_pi);
   |             ^^^^^----------------------------------
   |                  |
   |                  help: use `unwrap_or(..)` instead: `unwrap_or(astronomers_pi)`

error: unnecessary closure used to substitute value for `Result::Err`
  --> $DIR/unnecessary_lazy_eval.rs:91:13
   |
LL |     let _ = res2.unwrap_or_else(|_| ext_str.some_field);
   |             ^^^^^--------------------------------------
   |                  |
   |                  help: use `unwrap_or(..)` instead: `unwrap_or(ext_str.some_field)`

error: unnecessary closure used to substitute value for `Result::Err`
  --> $DIR/unnecessary_lazy_eval.rs:113:35
   |
LL |     let _: Result<usize, usize> = res.and_then(|_| Err(2));
   |                                   ^^^^--------------------
   |                                       |
   |                                       help: use `and(..)` instead: `and(Err(2))`

error: unnecessary closure used to substitute value for `Result::Err`
  --> $DIR/unnecessary_lazy_eval.rs:114:35
   |
LL |     let _: Result<usize, usize> = res.and_then(|_| Err(astronomers_pi));
   |                                   ^^^^---------------------------------
   |                                       |
   |                                       help: use `and(..)` instead: `and(Err(astronomers_pi))`

error: unnecessary closure used to substitute value for `Result::Err`
  --> $DIR/unnecessary_lazy_eval.rs:115:35
   |
LL |     let _: Result<usize, usize> = res.and_then(|_| Err(ext_str.some_field));
   |                                   ^^^^-------------------------------------
   |                                       |
   |                                       help: use `and(..)` instead: `and(Err(ext_str.some_field))`

error: unnecessary closure used to substitute value for `Result::Err`
  --> $DIR/unnecessary_lazy_eval.rs:117:35
   |
LL |     let _: Result<usize, usize> = res.or_else(|_| Ok(2));
   |                                   ^^^^------------------
   |                                       |
   |                                       help: use `or(..)` instead: `or(Ok(2))`

error: unnecessary closure used to substitute value for `Result::Err`
  --> $DIR/unnecessary_lazy_eval.rs:118:35
   |
LL |     let _: Result<usize, usize> = res.or_else(|_| Ok(astronomers_pi));
   |                                   ^^^^-------------------------------
   |                                       |
   |                                       help: use `or(..)` instead: `or(Ok(astronomers_pi))`

error: unnecessary closure used to substitute value for `Result::Err`
  --> $DIR/unnecessary_lazy_eval.rs:119:35
   |
LL |     let _: Result<usize, usize> = res.or_else(|_| Ok(ext_str.some_field));
   |                                   ^^^^-----------------------------------
   |                                       |
   |                                       help: use `or(..)` instead: `or(Ok(ext_str.some_field))`

error: unnecessary closure used to substitute value for `Result::Err`
  --> $DIR/unnecessary_lazy_eval.rs:120:35
   |
LL |       let _: Result<usize, usize> = res.
   |  ___________________________________^
LL | |         // some lines
LL | |         // some lines
LL | |         // some lines
...  |
LL | |         // some lines
LL | |         or_else(|_| Ok(ext_str.some_field));
   | |_________----------------------------------^
   |           |
   |           help: use `or(..)` instead: `or(Ok(ext_str.some_field))`

error: aborting due to 34 previous errors