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Fix suggestion unwrap_or_else

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This commit is contained in:
Alexey Semenyuk 2024-08-24 15:43:00 +05:00
parent ecfc7d906f
commit f4fc3858bc
3 changed files with 402 additions and 203 deletions
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4
clippy_lints/src/methods/unnecessary_lazy_eval.rs
View File

@ -64,9 +64,9 @@ pub(super) fn check<'tcx>(
// but prefer to avoid changing the signature of the function itself.
if let hir::ExprKind::MethodCall(.., span) = expr.kind {
span_lint_and_then(cx, UNNECESSARY_LAZY_EVALUATIONS, expr.span, msg, |diag| {
diag.span_suggestion(
diag.span_suggestion_verbose(
span,
format!("use `{simplify_using}(..)` instead"),
format!("use `{simplify_using}` instead"),
format!("{simplify_using}({})", snippet(cx, body_expr.span, "..")),
applicability,
);

566
tests/ui/unnecessary_lazy_eval.stderr
View File

@ -2,316 +2,432 @@ error: unnecessary closure used to substitute value for `Option::None`
--> tests/ui/unnecessary_lazy_eval.rs:83:13
|
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)]`
help: use `unwrap_or` instead
|
LL | let _ = opt.unwrap_or(2);
| ~~~~~~~~~~~~
error: unnecessary closure used to substitute value for `Option::None`
--> tests/ui/unnecessary_lazy_eval.rs:84:13
|
LL | let _ = opt.unwrap_or_else(|| astronomers_pi);
| ^^^^---------------------------------
| |
| help: use `unwrap_or(..)` instead: `unwrap_or(astronomers_pi)`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `unwrap_or` instead
|
LL | let _ = opt.unwrap_or(astronomers_pi);
| ~~~~~~~~~~~~~~~~~~~~~~~~~
error: unnecessary closure used to substitute value for `Option::None`
--> tests/ui/unnecessary_lazy_eval.rs:85:13
|
LL | let _ = opt.unwrap_or_else(|| ext_str.some_field);
| ^^^^-------------------------------------
| |
| help: use `unwrap_or(..)` instead: `unwrap_or(ext_str.some_field)`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `unwrap_or` instead
|
LL | let _ = opt.unwrap_or(ext_str.some_field);
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
error: unnecessary closure used to substitute value for `Option::None`
--> tests/ui/unnecessary_lazy_eval.rs:87:13
|
LL | let _ = opt.and_then(|_| ext_opt);
| ^^^^---------------------
| |
| help: use `and(..)` instead: `and(ext_opt)`
| ^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `and` instead
|
LL | let _ = opt.and(ext_opt);
| ~~~~~~~~~~~~
error: unnecessary closure used to substitute value for `Option::None`
--> tests/ui/unnecessary_lazy_eval.rs:88:13
|
LL | let _ = opt.or_else(|| ext_opt);
| ^^^^-------------------
| |
| help: use `or(..)` instead: `or(ext_opt)`
| ^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `or` instead
|
LL | let _ = opt.or(ext_opt);
| ~~~~~~~~~~~
error: unnecessary closure used to substitute value for `Option::None`
--> tests/ui/unnecessary_lazy_eval.rs:89:13
|
LL | let _ = opt.or_else(|| None);
| ^^^^----------------
| |
| help: use `or(..)` instead: `or(None)`
| ^^^^^^^^^^^^^^^^^^^^
|
help: use `or` instead
|
LL | let _ = opt.or(None);
| ~~~~~~~~
error: unnecessary closure used to substitute value for `Option::None`
--> tests/ui/unnecessary_lazy_eval.rs:90:13
|
LL | let _ = opt.get_or_insert_with(|| 2);
| ^^^^------------------------
| |
| help: use `get_or_insert(..)` instead: `get_or_insert(2)`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `get_or_insert` instead
|
LL | let _ = opt.get_or_insert(2);
| ~~~~~~~~~~~~~~~~
error: unnecessary closure used to substitute value for `Option::None`
--> tests/ui/unnecessary_lazy_eval.rs:91:13
|
LL | let _ = opt.ok_or_else(|| 2);
| ^^^^----------------
| |
| help: use `ok_or(..)` instead: `ok_or(2)`
| ^^^^^^^^^^^^^^^^^^^^
|
help: use `ok_or` instead
|
LL | let _ = opt.ok_or(2);
| ~~~~~~~~
error: unnecessary closure used to substitute value for `Option::None`
--> tests/ui/unnecessary_lazy_eval.rs:92:13
|
LL | let _ = nested_tuple_opt.unwrap_or_else(|| Some((1, 2)));
| ^^^^^^^^^^^^^^^^^-------------------------------
| |
| help: use `unwrap_or(..)` instead: `unwrap_or(Some((1, 2)))`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `unwrap_or` instead
|
LL | let _ = nested_tuple_opt.unwrap_or(Some((1, 2)));
| ~~~~~~~~~~~~~~~~~~~~~~~
error: unnecessary closure used with `bool::then`
--> tests/ui/unnecessary_lazy_eval.rs:93:13
|
LL | let _ = cond.then(|| astronomers_pi);
| ^^^^^-----------------------
| |
| help: use `then_some(..)` instead: `then_some(astronomers_pi)`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `then_some` instead
|
LL | let _ = cond.then_some(astronomers_pi);
| ~~~~~~~~~~~~~~~~~~~~~~~~~
error: unnecessary closure used with `bool::then`
--> tests/ui/unnecessary_lazy_eval.rs:94:13
|
LL | let _ = true.then(|| -> _ {});
| ^^^^^----------------
| |
| help: use `then_some(..)` instead: `then_some({})`
| ^^^^^^^^^^^^^^^^^^^^^
|
help: use `then_some` instead
|
LL | let _ = true.then_some({});
| ~~~~~~~~~~~~~
error: unnecessary closure used with `bool::then`
--> tests/ui/unnecessary_lazy_eval.rs:95:13
|
LL | let _ = true.then(|| {});
| ^^^^^-----------
| |
| help: use `then_some(..)` instead: `then_some({})`
| ^^^^^^^^^^^^^^^^
|
help: use `then_some` instead
|
LL | let _ = true.then_some({});
| ~~~~~~~~~~~~~
error: unnecessary closure used to substitute value for `Option::None`
--> tests/ui/unnecessary_lazy_eval.rs:99:13
|
LL | let _ = Some(1).unwrap_or_else(|| *r);
| ^^^^^^^^---------------------
| |
| help: use `unwrap_or(..)` instead: `unwrap_or(*r)`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `unwrap_or` instead
|
LL | let _ = Some(1).unwrap_or(*r);
| ~~~~~~~~~~~~~
error: unnecessary closure used to substitute value for `Option::None`
--> tests/ui/unnecessary_lazy_eval.rs:101:13
|
LL | let _ = Some(1).unwrap_or_else(|| *b);
| ^^^^^^^^---------------------
| |
| help: use `unwrap_or(..)` instead: `unwrap_or(*b)`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `unwrap_or` instead
|
LL | let _ = Some(1).unwrap_or(*b);
| ~~~~~~~~~~~~~
error: unnecessary closure used to substitute value for `Option::None`
--> tests/ui/unnecessary_lazy_eval.rs:103:13
|
LL | let _ = Some(1).as_ref().unwrap_or_else(|| &r);
| ^^^^^^^^^^^^^^^^^---------------------
| |
| help: use `unwrap_or(..)` instead: `unwrap_or(&r)`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `unwrap_or` instead
|
LL | let _ = Some(1).as_ref().unwrap_or(&r);
| ~~~~~~~~~~~~~
error: unnecessary closure used to substitute value for `Option::None`
--> tests/ui/unnecessary_lazy_eval.rs:104:13
|
LL | let _ = Some(1).as_ref().unwrap_or_else(|| &b);
| ^^^^^^^^^^^^^^^^^---------------------
| |
| help: use `unwrap_or(..)` instead: `unwrap_or(&b)`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `unwrap_or` instead
|
LL | let _ = Some(1).as_ref().unwrap_or(&b);
| ~~~~~~~~~~~~~
error: unnecessary closure used to substitute value for `Option::None`
--> tests/ui/unnecessary_lazy_eval.rs:107:13
|
LL | let _ = Some(10).unwrap_or_else(|| 2);
| ^^^^^^^^^--------------------
| |
| help: use `unwrap_or(..)` instead: `unwrap_or(2)`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `unwrap_or` instead
|
LL | let _ = Some(10).unwrap_or(2);
| ~~~~~~~~~~~~
error: unnecessary closure used to substitute value for `Option::None`
--> tests/ui/unnecessary_lazy_eval.rs:108:13
|
LL | let _ = Some(10).and_then(|_| ext_opt);
| ^^^^^^^^^---------------------
| |
| help: use `and(..)` instead: `and(ext_opt)`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `and` instead
|
LL | let _ = Some(10).and(ext_opt);
| ~~~~~~~~~~~~
error: unnecessary closure used to substitute value for `Option::None`
--> tests/ui/unnecessary_lazy_eval.rs:109:28
|
LL | let _: Option<usize> = None.or_else(|| ext_opt);
| ^^^^^-------------------
| |
| help: use `or(..)` instead: `or(ext_opt)`
| ^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `or` instead
|
LL | let _: Option<usize> = None.or(ext_opt);
| ~~~~~~~~~~~
error: unnecessary closure used to substitute value for `Option::None`
--> tests/ui/unnecessary_lazy_eval.rs:110:13
|
LL | let _ = None.get_or_insert_with(|| 2);
| ^^^^^------------------------
| |
| help: use `get_or_insert(..)` instead: `get_or_insert(2)`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `get_or_insert` instead
|
LL | let _ = None.get_or_insert(2);
| ~~~~~~~~~~~~~~~~
error: unnecessary closure used to substitute value for `Option::None`
--> tests/ui/unnecessary_lazy_eval.rs:111:35
|
LL | let _: Result<usize, usize> = None.ok_or_else(|| 2);
| ^^^^^----------------
| |
| help: use `ok_or(..)` instead: `ok_or(2)`
| ^^^^^^^^^^^^^^^^^^^^^
|
help: use `ok_or` instead
|
LL | let _: Result<usize, usize> = None.ok_or(2);
| ~~~~~~~~
error: unnecessary closure used to substitute value for `Option::None`
--> tests/ui/unnecessary_lazy_eval.rs:112:28
|
LL | let _: Option<usize> = None.or_else(|| None);
| ^^^^^----------------
| |
| help: use `or(..)` instead: `or(None)`
| ^^^^^^^^^^^^^^^^^^^^^
|
help: use `or` instead
|
LL | let _: Option<usize> = None.or(None);
| ~~~~~~~~
error: unnecessary closure used to substitute value for `Option::None`
--> tests/ui/unnecessary_lazy_eval.rs:115:13
|
LL | let _ = deep.0.unwrap_or_else(|| 2);
| ^^^^^^^--------------------
| |
| help: use `unwrap_or(..)` instead: `unwrap_or(2)`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `unwrap_or` instead
|
LL | let _ = deep.0.unwrap_or(2);
| ~~~~~~~~~~~~
error: unnecessary closure used to substitute value for `Option::None`
--> tests/ui/unnecessary_lazy_eval.rs:116:13
|
LL | let _ = deep.0.and_then(|_| ext_opt);
| ^^^^^^^---------------------
| |
| help: use `and(..)` instead: `and(ext_opt)`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `and` instead
|
LL | let _ = deep.0.and(ext_opt);
| ~~~~~~~~~~~~
error: unnecessary closure used to substitute value for `Option::None`
--> tests/ui/unnecessary_lazy_eval.rs:117:13
|
LL | let _ = deep.0.or_else(|| None);
| ^^^^^^^----------------
| |
| help: use `or(..)` instead: `or(None)`
| ^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `or` instead
|
LL | let _ = deep.0.or(None);
| ~~~~~~~~
error: unnecessary closure used to substitute value for `Option::None`
--> tests/ui/unnecessary_lazy_eval.rs:118:13
|
LL | let _ = deep.0.get_or_insert_with(|| 2);
| ^^^^^^^------------------------
| |
| help: use `get_or_insert(..)` instead: `get_or_insert(2)`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `get_or_insert` instead
|
LL | let _ = deep.0.get_or_insert(2);
| ~~~~~~~~~~~~~~~~
error: unnecessary closure used to substitute value for `Option::None`
--> tests/ui/unnecessary_lazy_eval.rs:119:13
|
LL | let _ = deep.0.ok_or_else(|| 2);
| ^^^^^^^----------------
| |
| help: use `ok_or(..)` instead: `ok_or(2)`
| ^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `ok_or` instead
|
LL | let _ = deep.0.ok_or(2);
| ~~~~~~~~
error: unnecessary closure used to substitute value for `Option::None`
--> tests/ui/unnecessary_lazy_eval.rs:150:28
|
LL | let _: Option<usize> = None.or_else(|| Some(3));
| ^^^^^-------------------
| |
| help: use `or(..)` instead: `or(Some(3))`
| ^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `or` instead
|
LL | let _: Option<usize> = None.or(Some(3));
| ~~~~~~~~~~~
error: unnecessary closure used to substitute value for `Option::None`
--> tests/ui/unnecessary_lazy_eval.rs:151:13
|
LL | let _ = deep.0.or_else(|| Some(3));
| ^^^^^^^-------------------
| |
| help: use `or(..)` instead: `or(Some(3))`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `or` instead
|
LL | let _ = deep.0.or(Some(3));
| ~~~~~~~~~~~
error: unnecessary closure used to substitute value for `Option::None`
--> tests/ui/unnecessary_lazy_eval.rs:152:13
|
LL | let _ = opt.or_else(|| Some(3));
| ^^^^-------------------
| |
| help: use `or(..)` instead: `or(Some(3))`
| ^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `or` instead
|
LL | let _ = opt.or(Some(3));
| ~~~~~~~~~~~
error: unnecessary closure used to substitute value for `Result::Err`
--> tests/ui/unnecessary_lazy_eval.rs:158:13
|
LL | let _ = res2.unwrap_or_else(|_| 2);
| ^^^^^---------------------
| |
| help: use `unwrap_or(..)` instead: `unwrap_or(2)`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `unwrap_or` instead
|
LL | let _ = res2.unwrap_or(2);
| ~~~~~~~~~~~~
error: unnecessary closure used to substitute value for `Result::Err`
--> tests/ui/unnecessary_lazy_eval.rs:159:13
|
LL | let _ = res2.unwrap_or_else(|_| astronomers_pi);
| ^^^^^----------------------------------
| |
| help: use `unwrap_or(..)` instead: `unwrap_or(astronomers_pi)`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `unwrap_or` instead
|
LL | let _ = res2.unwrap_or(astronomers_pi);
| ~~~~~~~~~~~~~~~~~~~~~~~~~
error: unnecessary closure used to substitute value for `Result::Err`
--> tests/ui/unnecessary_lazy_eval.rs:160:13
|
LL | let _ = res2.unwrap_or_else(|_| ext_str.some_field);
| ^^^^^--------------------------------------
| |
| help: use `unwrap_or(..)` instead: `unwrap_or(ext_str.some_field)`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `unwrap_or` instead
|
LL | let _ = res2.unwrap_or(ext_str.some_field);
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
error: unnecessary closure used to substitute value for `Result::Err`
--> tests/ui/unnecessary_lazy_eval.rs:182:35
|
LL | let _: Result<usize, usize> = res.and_then(|_| Err(2));
| ^^^^--------------------
| |
| help: use `and(..)` instead: `and(Err(2))`
| ^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `and` instead
|
LL | let _: Result<usize, usize> = res.and(Err(2));
| ~~~~~~~~~~~
error: unnecessary closure used to substitute value for `Result::Err`
--> tests/ui/unnecessary_lazy_eval.rs:183:35
|
LL | let _: Result<usize, usize> = res.and_then(|_| Err(astronomers_pi));
| ^^^^---------------------------------
| |
| help: use `and(..)` instead: `and(Err(astronomers_pi))`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `and` instead
|
LL | let _: Result<usize, usize> = res.and(Err(astronomers_pi));
| ~~~~~~~~~~~~~~~~~~~~~~~~
error: unnecessary closure used to substitute value for `Result::Err`
--> tests/ui/unnecessary_lazy_eval.rs:184:35
|
LL | let _: Result<usize, usize> = res.and_then(|_| Err(ext_str.some_field));
| ^^^^-------------------------------------
| |
| help: use `and(..)` instead: `and(Err(ext_str.some_field))`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `and` instead
|
LL | let _: Result<usize, usize> = res.and(Err(ext_str.some_field));
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
error: unnecessary closure used to substitute value for `Result::Err`
--> tests/ui/unnecessary_lazy_eval.rs:186:35
|
LL | let _: Result<usize, usize> = res.or_else(|_| Ok(2));
| ^^^^------------------
| |
| help: use `or(..)` instead: `or(Ok(2))`
| ^^^^^^^^^^^^^^^^^^^^^^
|
help: use `or` instead
|
LL | let _: Result<usize, usize> = res.or(Ok(2));
| ~~~~~~~~~
error: unnecessary closure used to substitute value for `Result::Err`
--> tests/ui/unnecessary_lazy_eval.rs:187:35
|
LL | let _: Result<usize, usize> = res.or_else(|_| Ok(astronomers_pi));
| ^^^^-------------------------------
| |
| help: use `or(..)` instead: `or(Ok(astronomers_pi))`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `or` instead
|
LL | let _: Result<usize, usize> = res.or(Ok(astronomers_pi));
| ~~~~~~~~~~~~~~~~~~~~~~
error: unnecessary closure used to substitute value for `Result::Err`
--> tests/ui/unnecessary_lazy_eval.rs:188:35
|
LL | let _: Result<usize, usize> = res.or_else(|_| Ok(ext_str.some_field));
| ^^^^-----------------------------------
| |
| help: use `or(..)` instead: `or(Ok(ext_str.some_field))`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `or` instead
|
LL | let _: Result<usize, usize> = res.or(Ok(ext_str.some_field));
| ~~~~~~~~~~~~~~~~~~~~~~~~~~
error: unnecessary closure used to substitute value for `Result::Err`
--> tests/ui/unnecessary_lazy_eval.rs:189:35
@ -324,193 +440,265 @@ LL | | // some lines
... |
LL | | // some lines
LL | | or_else(|_| Ok(ext_str.some_field));
| |_____----------------------------------^
| |
| help: use `or(..)` instead: `or(Ok(ext_str.some_field))`
| |_______________________________________^
|
help: use `or` instead
|
LL | or(Ok(ext_str.some_field));
| ~~~~~~~~~~~~~~~~~~~~~~~~~~
error: unnecessary closure used with `bool::then`
--> tests/ui/unnecessary_lazy_eval.rs:219:14
|
LL | let _x = false.then(|| i32::MAX + 1);
| ^^^^^^---------------------
| |
| help: use `then_some(..)` instead: `then_some(i32::MAX + 1)`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `then_some` instead
|
LL | let _x = false.then_some(i32::MAX + 1);
| ~~~~~~~~~~~~~~~~~~~~~~~
error: unnecessary closure used with `bool::then`
--> tests/ui/unnecessary_lazy_eval.rs:221:14
|
LL | let _x = false.then(|| i32::MAX * 2);
| ^^^^^^---------------------
| |
| help: use `then_some(..)` instead: `then_some(i32::MAX * 2)`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `then_some` instead
|
LL | let _x = false.then_some(i32::MAX * 2);
| ~~~~~~~~~~~~~~~~~~~~~~~
error: unnecessary closure used with `bool::then`
--> tests/ui/unnecessary_lazy_eval.rs:223:14
|
LL | let _x = false.then(|| i32::MAX - 1);
| ^^^^^^---------------------
| |
| help: use `then_some(..)` instead: `then_some(i32::MAX - 1)`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `then_some` instead
|
LL | let _x = false.then_some(i32::MAX - 1);
| ~~~~~~~~~~~~~~~~~~~~~~~
error: unnecessary closure used with `bool::then`
--> tests/ui/unnecessary_lazy_eval.rs:225:14
|
LL | let _x = false.then(|| i32::MIN - 1);
| ^^^^^^---------------------
| |
| help: use `then_some(..)` instead: `then_some(i32::MIN - 1)`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `then_some` instead
|
LL | let _x = false.then_some(i32::MIN - 1);
| ~~~~~~~~~~~~~~~~~~~~~~~
error: unnecessary closure used with `bool::then`
--> tests/ui/unnecessary_lazy_eval.rs:227:14
|
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)`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `then_some` instead
|
LL | let _x = false.then_some((1 + 2 * 3 - 2 / 3 + 9) << 2);
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
error: unnecessary closure used with `bool::then`
--> tests/ui/unnecessary_lazy_eval.rs:229:14
|
LL | let _x = false.then(|| 255u8 << 7);
| ^^^^^^-------------------
| |
| help: use `then_some(..)` instead: `then_some(255u8 << 7)`
| ^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `then_some` instead
|
LL | let _x = false.then_some(255u8 << 7);
| ~~~~~~~~~~~~~~~~~~~~~
error: unnecessary closure used with `bool::then`
--> tests/ui/unnecessary_lazy_eval.rs:231:14
|
LL | let _x = false.then(|| 255u8 << 8);
| ^^^^^^-------------------
| |
| help: use `then_some(..)` instead: `then_some(255u8 << 8)`
| ^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `then_some` instead
|
LL | let _x = false.then_some(255u8 << 8);
| ~~~~~~~~~~~~~~~~~~~~~
error: unnecessary closure used with `bool::then`
--> tests/ui/unnecessary_lazy_eval.rs:233:14
|
LL | let _x = false.then(|| 255u8 >> 8);
| ^^^^^^-------------------
| |
| help: use `then_some(..)` instead: `then_some(255u8 >> 8)`
| ^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `then_some` instead
|
LL | let _x = false.then_some(255u8 >> 8);
| ~~~~~~~~~~~~~~~~~~~~~
error: unnecessary closure used with `bool::then`
--> tests/ui/unnecessary_lazy_eval.rs:236:14
|
LL | let _x = false.then(|| i32::MAX + -1);
| ^^^^^^----------------------
| |
| help: use `then_some(..)` instead: `then_some(i32::MAX + -1)`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `then_some` instead
|
LL | let _x = false.then_some(i32::MAX + -1);
| ~~~~~~~~~~~~~~~~~~~~~~~~
error: unnecessary closure used with `bool::then`
--> tests/ui/unnecessary_lazy_eval.rs:238:14
|
LL | let _x = false.then(|| -i32::MAX);
| ^^^^^^------------------
| |
| help: use `then_some(..)` instead: `then_some(-i32::MAX)`
| ^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `then_some` instead
|
LL | let _x = false.then_some(-i32::MAX);
| ~~~~~~~~~~~~~~~~~~~~
error: unnecessary closure used with `bool::then`
--> tests/ui/unnecessary_lazy_eval.rs:240:14
|
LL | let _x = false.then(|| -i32::MIN);
| ^^^^^^------------------
| |
| help: use `then_some(..)` instead: `then_some(-i32::MIN)`
| ^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `then_some` instead
|
LL | let _x = false.then_some(-i32::MIN);
| ~~~~~~~~~~~~~~~~~~~~
error: unnecessary closure used with `bool::then`
--> tests/ui/unnecessary_lazy_eval.rs:243:14
|
LL | let _x = false.then(|| 255 >> -7);
| ^^^^^^------------------
| |
| help: use `then_some(..)` instead: `then_some(255 >> -7)`
| ^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `then_some` instead
|
LL | let _x = false.then_some(255 >> -7);
| ~~~~~~~~~~~~~~~~~~~~
error: unnecessary closure used with `bool::then`
--> tests/ui/unnecessary_lazy_eval.rs:245:14
|
LL | let _x = false.then(|| 255 << -1);
| ^^^^^^------------------
| |
| help: use `then_some(..)` instead: `then_some(255 << -1)`
| ^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `then_some` instead
|
LL | let _x = false.then_some(255 << -1);
| ~~~~~~~~~~~~~~~~~~~~
error: unnecessary closure used with `bool::then`
--> tests/ui/unnecessary_lazy_eval.rs:247:14
|
LL | let _x = false.then(|| 1 / 0);
| ^^^^^^--------------
| |
| help: use `then_some(..)` instead: `then_some(1 / 0)`
| ^^^^^^^^^^^^^^^^^^^^
|
help: use `then_some` instead
|
LL | let _x = false.then_some(1 / 0);
| ~~~~~~~~~~~~~~~~
error: unnecessary closure used with `bool::then`
--> tests/ui/unnecessary_lazy_eval.rs:249:14
|
LL | let _x = false.then(|| x << -1);
| ^^^^^^----------------
| |
| help: use `then_some(..)` instead: `then_some(x << -1)`
| ^^^^^^^^^^^^^^^^^^^^^^
|
help: use `then_some` instead
|
LL | let _x = false.then_some(x << -1);
| ~~~~~~~~~~~~~~~~~~
error: unnecessary closure used with `bool::then`
--> tests/ui/unnecessary_lazy_eval.rs:251:14
|
LL | let _x = false.then(|| x << 2);
| ^^^^^^---------------
| |
| help: use `then_some(..)` instead: `then_some(x << 2)`
| ^^^^^^^^^^^^^^^^^^^^^
|
help: use `then_some` instead
|
LL | let _x = false.then_some(x << 2);
| ~~~~~~~~~~~~~~~~~
error: unnecessary closure used with `bool::then`
--> tests/ui/unnecessary_lazy_eval.rs:261:14
|
LL | let _x = false.then(|| x / 0);
| ^^^^^^--------------
| |
| help: use `then_some(..)` instead: `then_some(x / 0)`
| ^^^^^^^^^^^^^^^^^^^^
|
help: use `then_some` instead
|
LL | let _x = false.then_some(x / 0);
| ~~~~~~~~~~~~~~~~
error: unnecessary closure used with `bool::then`
--> tests/ui/unnecessary_lazy_eval.rs:263:14
|
LL | let _x = false.then(|| x % 0);
| ^^^^^^--------------
| |
| help: use `then_some(..)` instead: `then_some(x % 0)`
| ^^^^^^^^^^^^^^^^^^^^
|
help: use `then_some` instead
|
LL | let _x = false.then_some(x % 0);
| ~~~~~~~~~~~~~~~~
error: unnecessary closure used with `bool::then`
--> tests/ui/unnecessary_lazy_eval.rs:266:14
|
LL | let _x = false.then(|| 1 / -1);
| ^^^^^^---------------
| |
| help: use `then_some(..)` instead: `then_some(1 / -1)`
| ^^^^^^^^^^^^^^^^^^^^^
|
help: use `then_some` instead
|
LL | let _x = false.then_some(1 / -1);
| ~~~~~~~~~~~~~~~~~
error: unnecessary closure used with `bool::then`
--> tests/ui/unnecessary_lazy_eval.rs:268:14
|
LL | let _x = false.then(|| i32::MIN / -1);
| ^^^^^^----------------------
| |
| help: use `then_some(..)` instead: `then_some(i32::MIN / -1)`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `then_some` instead
|
LL | let _x = false.then_some(i32::MIN / -1);
| ~~~~~~~~~~~~~~~~~~~~~~~~
error: unnecessary closure used with `bool::then`
--> tests/ui/unnecessary_lazy_eval.rs:271:14
|
LL | let _x = false.then(|| i32::MIN / 0);
| ^^^^^^---------------------
| |
| help: use `then_some(..)` instead: `then_some(i32::MIN / 0)`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `then_some` instead
|
LL | let _x = false.then_some(i32::MIN / 0);
| ~~~~~~~~~~~~~~~~~~~~~~~
error: unnecessary closure used with `bool::then`
--> tests/ui/unnecessary_lazy_eval.rs:273:14
|
LL | let _x = false.then(|| 4 / 2);
| ^^^^^^--------------
| |
| help: use `then_some(..)` instead: `then_some(4 / 2)`
| ^^^^^^^^^^^^^^^^^^^^
|
help: use `then_some` instead
|
LL | let _x = false.then_some(4 / 2);
| ~~~~~~~~~~~~~~~~
error: unnecessary closure used with `bool::then`
--> tests/ui/unnecessary_lazy_eval.rs:281:14
|
LL | let _x = false.then(|| f1 + f2);
| ^^^^^^----------------
| |
| help: use `then_some(..)` instead: `then_some(f1 + f2)`
| ^^^^^^^^^^^^^^^^^^^^^^
|
help: use `then_some` instead
|
LL | let _x = false.then_some(f1 + f2);
| ~~~~~~~~~~~~~~~~~~
error: aborting due to 63 previous errors

35
tests/ui/unnecessary_lazy_eval_unfixable.stderr
View File

@ -2,36 +2,47 @@ error: unnecessary closure used to substitute value for `Result::Err`
--> tests/ui/unnecessary_lazy_eval_unfixable.rs:13:13
|
LL | let _ = Ok(1).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)]`
help: use `unwrap_or` instead
|
LL | let _ = Ok(1).unwrap_or(2);
| ~~~~~~~~~~~~
error: unnecessary closure used to substitute value for `Result::Err`
--> tests/ui/unnecessary_lazy_eval_unfixable.rs:19:13
|
LL | let _ = Ok(1).unwrap_or_else(|e::E| 2);
| ^^^^^^------------------------
| |
| help: use `unwrap_or(..)` instead: `unwrap_or(2)`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `unwrap_or` instead
|
LL | let _ = Ok(1).unwrap_or(2);
| ~~~~~~~~~~~~
error: unnecessary closure used to substitute value for `Result::Err`
--> tests/ui/unnecessary_lazy_eval_unfixable.rs:21:13
|
LL | let _ = Ok(1).unwrap_or_else(|SomeStruct { .. }| 2);
| ^^^^^^-------------------------------------
| |
| help: use `unwrap_or(..)` instead: `unwrap_or(2)`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `unwrap_or` instead
|
LL | let _ = Ok(1).unwrap_or(2);
| ~~~~~~~~~~~~
error: unnecessary closure used with `bool::then`
--> tests/ui/unnecessary_lazy_eval_unfixable.rs:31:13
|
LL | let _ = true.then(|| -> &[u8] { &[] });
| ^^^^^-------------------------
| |
| help: use `then_some(..)` instead: `then_some({ &[] })`
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: use `then_some` instead
|
LL | let _ = true.then_some({ &[] });
| ~~~~~~~~~~~~~~~~~~
error: aborting due to 4 previous errors