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rust-clippy/tests/ui/unnecessary_lazy_eval.stderr

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error: unnecessary closure used to substitute value for `Option::None`
--> $DIR/unnecessary_lazy_eval.rs:71:13
|
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`
= help: to override `-D warnings` add `#[allow(clippy::unnecessary_lazy_evaluations)]`
error: unnecessary closure used to substitute value for `Option::None`
--> $DIR/unnecessary_lazy_eval.rs:72:13
|
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:73:13
|
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:75:13
|
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:76:13
|
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:77:13
|
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:78:13
|
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:79:13
|
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:80:13
|
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:81:13
|
LL | let _ = cond.then(|| astronomers_pi);
| ^^^^^-----------------------
| |
| help: use `then_some(..)` instead: `then_some(astronomers_pi)`
error: unnecessary closure used with `bool::then`
--> $DIR/unnecessary_lazy_eval.rs:82:13
|
LL | let _ = true.then(|| -> _ {});
| ^^^^^----------------
| |
| help: use `then_some(..)` instead: `then_some({})`
error: unnecessary closure used with `bool::then`
--> $DIR/unnecessary_lazy_eval.rs:83:13
|
LL | let _ = true.then(|| {});
| ^^^^^-----------
| |
| help: use `then_some(..)` instead: `then_some({})`
error: unnecessary closure used to substitute value for `Option::None`
--> $DIR/unnecessary_lazy_eval.rs:87:13
|
LL | let _ = Some(1).unwrap_or_else(|| *r);
| ^^^^^^^^---------------------
| |
| help: use `unwrap_or(..)` instead: `unwrap_or(*r)`
error: unnecessary closure used to substitute value for `Option::None`
--> $DIR/unnecessary_lazy_eval.rs:89:13
|
LL | let _ = Some(1).unwrap_or_else(|| *b);
| ^^^^^^^^---------------------
| |
| help: use `unwrap_or(..)` instead: `unwrap_or(*b)`
error: unnecessary closure used to substitute value for `Option::None`
--> $DIR/unnecessary_lazy_eval.rs:91:13
|
LL | let _ = Some(1).as_ref().unwrap_or_else(|| &r);
| ^^^^^^^^^^^^^^^^^---------------------
| |
| help: use `unwrap_or(..)` instead: `unwrap_or(&r)`
error: unnecessary closure used to substitute value for `Option::None`
--> $DIR/unnecessary_lazy_eval.rs:92:13
|
LL | let _ = Some(1).as_ref().unwrap_or_else(|| &b);
| ^^^^^^^^^^^^^^^^^---------------------
| |
| help: use `unwrap_or(..)` instead: `unwrap_or(&b)`
error: unnecessary closure used to substitute value for `Option::None`
--> $DIR/unnecessary_lazy_eval.rs:95:13
|
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:96:13
|
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:97:28
|
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:98:13
|
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:99:35
|
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:100:28
|
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:103:13
|
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:104:13
|
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:105:13
|
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:106:13
|
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:107:13
|
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:137:28
|
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:138:13
|
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:139:13
|
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:145:13
|
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:146:13
|
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:147:13
|
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:169:35
|
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:170:35
|
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:171:35
|
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:173:35
|
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:174:35
|
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:175:35
|
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:176:35
|
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: unnecessary closure used with `bool::then`
--> $DIR/unnecessary_lazy_eval.rs:208:14
|
LL | let _x = false.then(|| i32::MAX - 1);
| ^^^^^^---------------------
| |
| help: use `then_some(..)` instead: `then_some(i32::MAX - 1)`
error: unnecessary closure used with `bool::then`
--> $DIR/unnecessary_lazy_eval.rs:212:14
|
LL | let _x = false.then(|| (1 + 2 * 3 - 2 / 3 + 9) << 2);
| ^^^^^^-------------------------------------
| |
| help: use `then_some(..)` instead: `then_some((1 + 2 * 3 - 2 / 3 + 9) << 2)`
error: unnecessary closure used with `bool::then`
--> $DIR/unnecessary_lazy_eval.rs:214:14
|
LL | let _x = false.then(|| 255u8 << 7);
| ^^^^^^-------------------
| |
| help: use `then_some(..)` instead: `then_some(255u8 << 7)`
error: unnecessary closure used with `bool::then`
--> $DIR/unnecessary_lazy_eval.rs:220:14
|
LL | let _x = false.then(|| i32::MAX + -1);
| ^^^^^^----------------------
| |
| help: use `then_some(..)` instead: `then_some(i32::MAX + -1)`
error: unnecessary closure used with `bool::then`
--> $DIR/unnecessary_lazy_eval.rs:222:14
|
LL | let _x = false.then(|| -i32::MAX);
| ^^^^^^------------------
| |
| help: use `then_some(..)` instead: `then_some(-i32::MAX)`
error: unnecessary closure used with `bool::then`
--> $DIR/unnecessary_lazy_eval.rs:229:14
|
LL | let _x = false.then(|| x << 2);
| ^^^^^^---------------
| |
| help: use `then_some(..)` instead: `then_some(x << 2)`
error: unnecessary closure used with `bool::then`
--> $DIR/unnecessary_lazy_eval.rs:236:14
|
LL | let _x = false.then(|| f1 + f2);
| ^^^^^^----------------
| |
| help: use `then_some(..)` instead: `then_some(f1 + f2)`
error: aborting due to 47 previous errors
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