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Auto merge of #10358 - pksunkara:unnecessary-unwrap, r=llogiq

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Add `unnecessary_literal_unwrap` lint

Add lint for more unnecessary unwraps and suggest fixes for them.

Fixes #10352

- [x] Followed [lint naming conventions][lint_naming]
- [x] Added passing UI tests (including committed `.stderr` file)
- [x] `cargo test` passes locally
- [x] Executed `cargo dev update_lints`
- [x] Added lint documentation
- [x] Run `cargo dev fmt`

r? `@llogiq`

---

changelog: New lint [`unnecessary_literal_unwrap`]
[#10358](https://github.com/rust-lang/rust-clippy/pull/10358)
<!-- changelog_checked -->
This commit is contained in:
bors 2023-06-12 18:04:22 +00:00
commit 7c2bf28365
72 changed files with 1883 additions and 379 deletions
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1
CHANGELOG.md
View File

@ -5248,6 +5248,7 @@ Released 2018-09-13
[`unnecessary_fold`]: https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[`unnecessary_join`]: https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_join
[`unnecessary_lazy_evaluations`]: https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_lazy_evaluations
[`unnecessary_literal_unwrap`]: https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_literal_unwrap
[`unnecessary_mut_passed`]: https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_mut_passed
[`unnecessary_operation`]: https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_operation
[`unnecessary_owned_empty_strings`]: https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_owned_empty_strings

1
clippy_lints/src/declared_lints.rs
View File

@ -408,6 +408,7 @@ pub(crate) static LINTS: &[&crate::LintInfo] = &[
crate::methods::UNNECESSARY_FOLD_INFO,
crate::methods::UNNECESSARY_JOIN_INFO,
crate::methods::UNNECESSARY_LAZY_EVALUATIONS_INFO,
crate::methods::UNNECESSARY_LITERAL_UNWRAP_INFO,
crate::methods::UNNECESSARY_SORT_BY_INFO,
crate::methods::UNNECESSARY_TO_OWNED_INFO,
crate::methods::UNWRAP_OR_ELSE_DEFAULT_INFO,

57
clippy_lints/src/methods/mod.rs
View File

@ -93,6 +93,7 @@ mod unnecessary_fold;
mod unnecessary_iter_cloned;
mod unnecessary_join;
mod unnecessary_lazy_eval;
mod unnecessary_literal_unwrap;
mod unnecessary_sort_by;
mod unnecessary_to_owned;
mod unwrap_or_else_default;
@ -273,6 +274,32 @@ declare_clippy_lint! {
"using `.unwrap()` on `Result` or `Option`, which should at least get a better message using `expect()`"
}
declare_clippy_lint! {
/// ### What it does
/// Checks for `.unwrap()` related calls on `Result`s and `Option`s that are constructed.
///
/// ### Why is this bad?
/// It is better to write the value directly without the indirection.
///
/// ### Examples
/// ```rust
/// let val1 = Some(1).unwrap();
/// let val2 = Ok::<_, ()>(1).unwrap();
/// let val3 = Err::<(), _>(1).unwrap_err();
/// ```
///
/// Use instead:
/// ```rust
/// let val1 = 1;
/// let val2 = 1;
/// let val3 = 1;
/// ```
#[clippy::version = "1.69.0"]
pub UNNECESSARY_LITERAL_UNWRAP,
complexity,
"using `unwrap()` related calls on `Result` and `Option` constructors"
}
declare_clippy_lint! {
/// ### What it does
/// Checks for `.expect()` or `.expect_err()` calls on `Result`s and `.expect()` call on `Option`s.
@ -3349,6 +3376,7 @@ impl_lint_pass!(Methods => [
SUSPICIOUS_COMMAND_ARG_SPACE,
CLEAR_WITH_DRAIN,
MANUAL_NEXT_BACK,
UNNECESSARY_LITERAL_UNWRAP,
]);
/// Extracts a method call name, args, and `Span` of the method name.
@ -3606,12 +3634,18 @@ impl Methods {
case_sensitive_file_extension_comparisons::check(cx, expr, span, recv, arg);
}
},
("expect", [_]) => match method_call(recv) {
("expect", [_]) => {
match method_call(recv) {
Some(("ok", recv, [], _, _)) => ok_expect::check(cx, expr, recv),
Some(("err", recv, [], err_span, _)) => err_expect::check(cx, expr, recv, span, err_span, &self.msrv),
_ => expect_used::check(cx, expr, recv, false, self.allow_expect_in_tests),
}
unnecessary_literal_unwrap::check(cx, expr, recv, name, args);
},
("expect_err", [_]) => {
unnecessary_literal_unwrap::check(cx, expr, recv, name, args);
expect_used::check(cx, expr, recv, true, self.allow_expect_in_tests);
},
("expect_err", [_]) => expect_used::check(cx, expr, recv, true, self.allow_expect_in_tests),
("extend", [arg]) => {
string_extend_chars::check(cx, expr, recv, arg);
extend_with_drain::check(cx, expr, recv, arg);
@ -3816,10 +3850,15 @@ impl Methods {
},
_ => {},
}
unnecessary_literal_unwrap::check(cx, expr, recv, name, args);
unwrap_used::check(cx, expr, recv, false, self.allow_unwrap_in_tests);
},
("unwrap_err", []) => unwrap_used::check(cx, expr, recv, true, self.allow_unwrap_in_tests),
("unwrap_or", [u_arg]) => match method_call(recv) {
("unwrap_err", []) => {
unnecessary_literal_unwrap::check(cx, expr, recv, name, args);
unwrap_used::check(cx, expr, recv, true, self.allow_unwrap_in_tests);
},
("unwrap_or", [u_arg]) => {
match method_call(recv) {
Some((arith @ ("checked_add" | "checked_sub" | "checked_mul"), lhs, [rhs], _, _)) => {
manual_saturating_arithmetic::check(cx, expr, lhs, rhs, u_arg, &arith["checked_".len()..]);
},
@ -3830,14 +3869,22 @@ impl Methods {
obfuscated_if_else::check(cx, expr, t_recv, t_arg, u_arg);
},
_ => {},
}
unnecessary_literal_unwrap::check(cx, expr, recv, name, args);
},
("unwrap_or_else", [u_arg]) => match method_call(recv) {
("unwrap_or_default", []) => {
unnecessary_literal_unwrap::check(cx, expr, recv, name, args);
}
("unwrap_or_else", [u_arg]) => {
match method_call(recv) {
Some(("map", recv, [map_arg], _, _))
if map_unwrap_or::check(cx, expr, recv, map_arg, u_arg, &self.msrv) => {},
_ => {
unwrap_or_else_default::check(cx, expr, recv, u_arg);
unnecessary_lazy_eval::check(cx, expr, recv, u_arg, "unwrap_or");
},
}
unnecessary_literal_unwrap::check(cx, expr, recv, name, args);
},
("zip", [arg]) => {
if let ExprKind::MethodCall(name, iter_recv, [], _) = recv.kind

95
clippy_lints/src/methods/unnecessary_literal_unwrap.rs Normal file
View File

@ -0,0 +1,95 @@
use clippy_utils::{diagnostics::span_lint_and_then, is_res_lang_ctor, last_path_segment, path_res, MaybePath};
use rustc_errors::Applicability;
use rustc_hir as hir;
use rustc_lint::LateContext;
use super::UNNECESSARY_LITERAL_UNWRAP;
fn get_ty_from_args<'a>(args: Option<&'a [hir::GenericArg<'a>]>, index: usize) -> Option<&'a hir::Ty<'a>> {
let args = args?;
if args.len() <= index {
return None;
}
match args[index] {
hir::GenericArg::Type(ty) => match ty.kind {
hir::TyKind::Infer => None,
_ => Some(ty),
},
_ => None,
}
}
pub(super) fn check(
cx: &LateContext<'_>,
expr: &hir::Expr<'_>,
recv: &hir::Expr<'_>,
method: &str,
args: &[hir::Expr<'_>],
) {
let init = clippy_utils::expr_or_init(cx, recv);
let (constructor, call_args, ty) = if let hir::ExprKind::Call(call, call_args) = init.kind {
let Some(qpath) = call.qpath_opt() else { return };
let args = last_path_segment(qpath).args.map(|args| args.args);
let res = cx.qpath_res(qpath, call.hir_id());
if is_res_lang_ctor(cx, res, hir::LangItem::OptionSome) {
("Some", call_args, get_ty_from_args(args, 0))
} else if is_res_lang_ctor(cx, res, hir::LangItem::ResultOk) {
("Ok", call_args, get_ty_from_args(args, 0))
} else if is_res_lang_ctor(cx, res, hir::LangItem::ResultErr) {
("Err", call_args, get_ty_from_args(args, 1))
} else {
return;
}
} else if is_res_lang_ctor(cx, path_res(cx, init), hir::LangItem::OptionNone) {
let call_args: &[hir::Expr<'_>] = &[];
("None", call_args, None)
} else {
return;
};
let help_message = format!("used `{method}()` on `{constructor}` value");
let suggestion_message = format!("remove the `{constructor}` and `{method}()`");
span_lint_and_then(cx, UNNECESSARY_LITERAL_UNWRAP, expr.span, &help_message, |diag| {
let suggestions = match (constructor, method, ty) {
("None", "unwrap", _) => Some(vec![(expr.span, "panic!()".to_string())]),
("None", "expect", _) => Some(vec![
(expr.span.with_hi(args[0].span.lo()), "panic!(".to_string()),
(expr.span.with_lo(args[0].span.hi()), ")".to_string()),
]),
(_, _, Some(_)) => None,
("Ok", "unwrap_err", None) | ("Err", "unwrap", None) => Some(vec![
(
recv.span.with_hi(call_args[0].span.lo()),
"panic!(\"{:?}\", ".to_string(),
),
(expr.span.with_lo(call_args[0].span.hi()), ")".to_string()),
]),
("Ok", "expect_err", None) | ("Err", "expect", None) => Some(vec![
(
recv.span.with_hi(call_args[0].span.lo()),
"panic!(\"{1}: {:?}\", ".to_string(),
),
(call_args[0].span.with_lo(args[0].span.lo()), ", ".to_string()),
]),
(_, _, None) => Some(vec![
(recv.span.with_hi(call_args[0].span.lo()), String::new()),
(expr.span.with_lo(call_args[0].span.hi()), String::new()),
]),
};
match (init.span == recv.span, suggestions) {
(true, Some(suggestions)) => {
diag.multipart_suggestion(suggestion_message, suggestions, Applicability::MachineApplicable);
},
_ => {
diag.span_help(init.span, suggestion_message);
},
}
});
}

1
tests/ui-toml/allow_mixed_uninlined_format_args/uninlined_format_args.fixed
View File

@ -1,5 +1,6 @@
//@run-rustfix
#![warn(clippy::uninlined_format_args)]
#![allow(clippy::unnecessary_literal_unwrap)]
fn main() {
let local_i32 = 1;

1
tests/ui-toml/allow_mixed_uninlined_format_args/uninlined_format_args.rs
View File

@ -1,5 +1,6 @@
//@run-rustfix
#![warn(clippy::uninlined_format_args)]
#![allow(clippy::unnecessary_literal_unwrap)]
fn main() {
let local_i32 = 1;

12
tests/ui-toml/allow_mixed_uninlined_format_args/uninlined_format_args.stderr
View File

@ -1,5 +1,5 @@
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:9:5
--> $DIR/uninlined_format_args.rs:10:5
|
LL | println!("val='{}'", local_i32);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -12,7 +12,7 @@ LL + println!("val='{local_i32}'");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:10:5
--> $DIR/uninlined_format_args.rs:11:5
|
LL | println!("Hello {} is {:.*}", "x", local_i32, local_f64);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -24,7 +24,7 @@ LL + println!("Hello {} is {local_f64:.local_i32$}", "x");
|
error: literal with an empty format string
--> $DIR/uninlined_format_args.rs:10:35
--> $DIR/uninlined_format_args.rs:11:35
|
LL | println!("Hello {} is {:.*}", "x", local_i32, local_f64);
| ^^^
@ -37,7 +37,7 @@ LL + println!("Hello x is {:.*}", local_i32, local_f64);
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:11:5
--> $DIR/uninlined_format_args.rs:12:5
|
LL | println!("Hello {} is {:.*}", local_i32, 5, local_f64);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -49,7 +49,7 @@ LL + println!("Hello {local_i32} is {local_f64:.*}", 5);
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:12:5
--> $DIR/uninlined_format_args.rs:13:5
|
LL | println!("Hello {} is {2:.*}", local_i32, 5, local_f64);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -61,7 +61,7 @@ LL + println!("Hello {local_i32} is {local_f64:.*}", 5);
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:13:5
--> $DIR/uninlined_format_args.rs:14:5
|
LL | println!("{}, {}", local_i32, local_opt.unwrap());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

1
tests/ui-toml/arithmetic_side_effects_allowed/arithmetic_side_effects_allowed.rs
View File

@ -1,4 +1,5 @@
#![warn(clippy::arithmetic_side_effects)]
#![allow(clippy::unnecessary_literal_unwrap)]
use core::ops::{Add, Neg};

18
tests/ui-toml/arithmetic_side_effects_allowed/arithmetic_side_effects_allowed.stderr
View File

@ -1,5 +1,5 @@
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects_allowed.rs:68:13
--> $DIR/arithmetic_side_effects_allowed.rs:69:13
|
LL | let _ = Baz + Baz;
| ^^^^^^^^^
@ -7,49 +7,49 @@ LL | let _ = Baz + Baz;
= note: `-D clippy::arithmetic-side-effects` implied by `-D warnings`
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects_allowed.rs:79:13
--> $DIR/arithmetic_side_effects_allowed.rs:80:13
|
LL | let _ = 1i32 + Baz;
| ^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects_allowed.rs:82:13
--> $DIR/arithmetic_side_effects_allowed.rs:83:13
|
LL | let _ = 1i64 + Foo;
| ^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects_allowed.rs:86:13
--> $DIR/arithmetic_side_effects_allowed.rs:87:13
|
LL | let _ = 1i64 + Baz;
| ^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects_allowed.rs:97:13
--> $DIR/arithmetic_side_effects_allowed.rs:98:13
|
LL | let _ = Baz + 1i32;
| ^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects_allowed.rs:100:13
--> $DIR/arithmetic_side_effects_allowed.rs:101:13
|
LL | let _ = Foo + 1i64;
| ^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects_allowed.rs:104:13
--> $DIR/arithmetic_side_effects_allowed.rs:105:13
|
LL | let _ = Baz + 1i64;
| ^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects_allowed.rs:113:13
--> $DIR/arithmetic_side_effects_allowed.rs:114:13
|
LL | let _ = -Bar;
| ^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects_allowed.rs:115:13
--> $DIR/arithmetic_side_effects_allowed.rs:116:13
|
LL | let _ = -Baz;
| ^^^^

1
tests/ui-toml/expect_used/expect_used.rs
View File

@ -1,5 +1,6 @@
//@compile-flags: --test
#![warn(clippy::expect_used)]
#![allow(clippy::unnecessary_literal_unwrap)]
fn expect_option() {
let opt = Some(0);

4
tests/ui-toml/expect_used/expect_used.stderr
View File

@ -1,5 +1,5 @@
error: used `expect()` on an `Option` value
--> $DIR/expect_used.rs:6:13
--> $DIR/expect_used.rs:7:13
|
LL | let _ = opt.expect("");
| ^^^^^^^^^^^^^^
@ -8,7 +8,7 @@ LL | let _ = opt.expect("");
= note: `-D clippy::expect-used` implied by `-D warnings`
error: used `expect()` on a `Result` value
--> $DIR/expect_used.rs:11:13
--> $DIR/expect_used.rs:12:13
|
LL | let _ = res.expect("");
| ^^^^^^^^^^^^^^

1
tests/ui/assertions_on_result_states.fixed
View File

@ -1,5 +1,6 @@
//@run-rustfix
#![warn(clippy::assertions_on_result_states)]
#![allow(clippy::unnecessary_literal_unwrap)]
use std::result::Result;

1
tests/ui/assertions_on_result_states.rs
View File

@ -1,5 +1,6 @@
//@run-rustfix
#![warn(clippy::assertions_on_result_states)]
#![allow(clippy::unnecessary_literal_unwrap)]
use std::result::Result;

14
tests/ui/assertions_on_result_states.stderr
View File

@ -1,5 +1,5 @@
error: called `assert!` with `Result::is_ok`
--> $DIR/assertions_on_result_states.rs:24:5
--> $DIR/assertions_on_result_states.rs:25:5
|
LL | assert!(r.is_ok());
| ^^^^^^^^^^^^^^^^^^ help: replace with: `r.unwrap()`
@ -7,37 +7,37 @@ LL | assert!(r.is_ok());
= note: `-D clippy::assertions-on-result-states` implied by `-D warnings`
error: called `assert!` with `Result::is_ok`
--> $DIR/assertions_on_result_states.rs:42:5
--> $DIR/assertions_on_result_states.rs:43:5
|
LL | assert!(get_ok().is_ok());
| ^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `get_ok().unwrap()`
error: called `assert!` with `Result::is_ok`
--> $DIR/assertions_on_result_states.rs:45:5
--> $DIR/assertions_on_result_states.rs:46:5
|
LL | assert!(get_ok_macro!().is_ok());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `get_ok_macro!().unwrap()`
error: called `assert!` with `Result::is_ok`
--> $DIR/assertions_on_result_states.rs:58:5
--> $DIR/assertions_on_result_states.rs:59:5
|
LL | assert!(r.is_ok());
| ^^^^^^^^^^^^^^^^^^ help: replace with: `r.unwrap()`
error: called `assert!` with `Result::is_ok`
--> $DIR/assertions_on_result_states.rs:64:9
--> $DIR/assertions_on_result_states.rs:65:9
|
LL | assert!(r.is_ok());
| ^^^^^^^^^^^^^^^^^^ help: replace with: `r.unwrap()`
error: called `assert!` with `Result::is_err`
--> $DIR/assertions_on_result_states.rs:72:5
--> $DIR/assertions_on_result_states.rs:73:5
|
LL | assert!(r.is_err());
| ^^^^^^^^^^^^^^^^^^^ help: replace with: `r.unwrap_err()`
error: called `assert!` with `Result::is_err`
--> $DIR/assertions_on_result_states.rs:82:5
--> $DIR/assertions_on_result_states.rs:83:5
|
LL | assert!(res.is_err())
| ^^^^^^^^^^^^^^^^^^^^^ help: replace with: `res.unwrap_err();`

7
tests/ui/blocks_in_if_conditions_closure.rs
View File

@ -1,5 +1,10 @@
#![warn(clippy::blocks_in_if_conditions)]
#![allow(unused, clippy::let_and_return, clippy::needless_if)]
#![allow(
unused,
clippy::let_and_return,
clippy::needless_if,
clippy::unnecessary_literal_unwrap
)]
fn predicate<F: FnOnce(T) -> bool, T>(pfn: F, val: T) -> bool {
pfn(val)

4
tests/ui/blocks_in_if_conditions_closure.stderr
View File

@ -1,5 +1,5 @@
error: in an `if` condition, avoid complex blocks or closures with blocks; instead, move the block or closure higher and bind it with a `let`
--> $DIR/blocks_in_if_conditions_closure.rs:18:17
--> $DIR/blocks_in_if_conditions_closure.rs:23:17
|
LL | |x| {
| _________________^
@ -11,7 +11,7 @@ LL | | },
= note: `-D clippy::blocks-in-if-conditions` implied by `-D warnings`
error: in an `if` condition, avoid complex blocks or closures with blocks; instead, move the block or closure higher and bind it with a `let`
--> $DIR/blocks_in_if_conditions_closure.rs:27:13
--> $DIR/blocks_in_if_conditions_closure.rs:32:13
|
LL | |x| {
| _____________^

6
tests/ui/checked_unwrap/complex_conditionals.rs
View File

@ -1,5 +1,9 @@
#![deny(clippy::panicking_unwrap, clippy::unnecessary_unwrap)]
#![allow(clippy::if_same_then_else, clippy::branches_sharing_code)]
#![allow(
clippy::if_same_then_else,
clippy::branches_sharing_code,
clippy::unnecessary_literal_unwrap
)]
fn test_complex_conditions() {
let x: Result<(), ()> = Ok(());

40
tests/ui/checked_unwrap/complex_conditionals.stderr
View File

@ -1,5 +1,5 @@
error: called `unwrap` on `x` after checking its variant with `is_ok`
--> $DIR/complex_conditionals.rs:8:9
--> $DIR/complex_conditionals.rs:12:9
|
LL | if x.is_ok() && y.is_err() {
| --------- the check is happening here
@ -14,7 +14,7 @@ LL | #![deny(clippy::panicking_unwrap, clippy::unnecessary_unwrap)]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
error: this call to `unwrap_err()` will always panic
--> $DIR/complex_conditionals.rs:9:9
--> $DIR/complex_conditionals.rs:13:9
|
LL | if x.is_ok() && y.is_err() {
| --------- because of this check
@ -29,7 +29,7 @@ LL | #![deny(clippy::panicking_unwrap, clippy::unnecessary_unwrap)]
| ^^^^^^^^^^^^^^^^^^^^^^^^
error: this call to `unwrap()` will always panic
--> $DIR/complex_conditionals.rs:10:9
--> $DIR/complex_conditionals.rs:14:9
|
LL | if x.is_ok() && y.is_err() {
| ---------- because of this check
@ -38,7 +38,7 @@ LL | y.unwrap(); // will panic
| ^^^^^^^^^^
error: called `unwrap_err` on `y` after checking its variant with `is_err`
--> $DIR/complex_conditionals.rs:11:9
--> $DIR/complex_conditionals.rs:15:9
|
LL | if x.is_ok() && y.is_err() {
| ---------- the check is happening here
@ -49,7 +49,7 @@ LL | y.unwrap_err(); // unnecessary
= help: try using `if let` or `match`
error: this call to `unwrap()` will always panic
--> $DIR/complex_conditionals.rs:25:9
--> $DIR/complex_conditionals.rs:29:9
|
LL | if x.is_ok() || y.is_ok() {
| --------- because of this check
@ -58,7 +58,7 @@ LL | x.unwrap(); // will panic
| ^^^^^^^^^^
error: called `unwrap_err` on `x` after checking its variant with `is_ok`
--> $DIR/complex_conditionals.rs:26:9
--> $DIR/complex_conditionals.rs:30:9
|
LL | if x.is_ok() || y.is_ok() {
| --------- the check is happening here
@ -69,7 +69,7 @@ LL | x.unwrap_err(); // unnecessary
= help: try using `if let` or `match`
error: this call to `unwrap()` will always panic
--> $DIR/complex_conditionals.rs:27:9
--> $DIR/complex_conditionals.rs:31:9
|
LL | if x.is_ok() || y.is_ok() {
| --------- because of this check
@ -78,7 +78,7 @@ LL | y.unwrap(); // will panic
| ^^^^^^^^^^
error: called `unwrap_err` on `y` after checking its variant with `is_ok`
--> $DIR/complex_conditionals.rs:28:9
--> $DIR/complex_conditionals.rs:32:9
|
LL | if x.is_ok() || y.is_ok() {
| --------- the check is happening here
@ -89,7 +89,7 @@ LL | y.unwrap_err(); // unnecessary
= help: try using `if let` or `match`
error: called `unwrap` on `x` after checking its variant with `is_ok`
--> $DIR/complex_conditionals.rs:32:9
--> $DIR/complex_conditionals.rs:36:9
|
LL | if x.is_ok() && !(y.is_ok() || z.is_err()) {
| --------- the check is happening here
@ -99,7 +99,7 @@ LL | x.unwrap(); // unnecessary
= help: try using `if let` or `match`
error: this call to `unwrap_err()` will always panic
--> $DIR/complex_conditionals.rs:33:9
--> $DIR/complex_conditionals.rs:37:9
|
LL | if x.is_ok() && !(y.is_ok() || z.is_err()) {
| --------- because of this check
@ -108,7 +108,7 @@ LL | x.unwrap_err(); // will panic
| ^^^^^^^^^^^^^^
error: this call to `unwrap()` will always panic
--> $DIR/complex_conditionals.rs:34:9
--> $DIR/complex_conditionals.rs:38:9
|
LL | if x.is_ok() && !(y.is_ok() || z.is_err()) {
| --------- because of this check
@ -117,7 +117,7 @@ LL | y.unwrap(); // will panic
| ^^^^^^^^^^
error: called `unwrap_err` on `y` after checking its variant with `is_ok`
--> $DIR/complex_conditionals.rs:35:9
--> $DIR/complex_conditionals.rs:39:9
|
LL | if x.is_ok() && !(y.is_ok() || z.is_err()) {
| --------- the check is happening here
@ -128,7 +128,7 @@ LL | y.unwrap_err(); // unnecessary
= help: try using `if let` or `match`
error: called `unwrap` on `z` after checking its variant with `is_err`
--> $DIR/complex_conditionals.rs:36:9
--> $DIR/complex_conditionals.rs:40:9
|
LL | if x.is_ok() && !(y.is_ok() || z.is_err()) {
| ---------- the check is happening here
@ -139,7 +139,7 @@ LL | z.unwrap(); // unnecessary
= help: try using `if let` or `match`
error: this call to `unwrap_err()` will always panic
--> $DIR/complex_conditionals.rs:37:9
--> $DIR/complex_conditionals.rs:41:9
|
LL | if x.is_ok() && !(y.is_ok() || z.is_err()) {
| ---------- because of this check
@ -148,7 +148,7 @@ LL | z.unwrap_err(); // will panic
| ^^^^^^^^^^^^^^
error: this call to `unwrap()` will always panic
--> $DIR/complex_conditionals.rs:45:9
--> $DIR/complex_conditionals.rs:49:9
|
LL | if x.is_ok() || !(y.is_ok() && z.is_err()) {
| --------- because of this check
@ -157,7 +157,7 @@ LL | x.unwrap(); // will panic
| ^^^^^^^^^^
error: called `unwrap_err` on `x` after checking its variant with `is_ok`
--> $DIR/complex_conditionals.rs:46:9
--> $DIR/complex_conditionals.rs:50:9
|
LL | if x.is_ok() || !(y.is_ok() && z.is_err()) {
| --------- the check is happening here
@ -168,7 +168,7 @@ LL | x.unwrap_err(); // unnecessary
= help: try using `if let` or `match`
error: called `unwrap` on `y` after checking its variant with `is_ok`
--> $DIR/complex_conditionals.rs:47:9
--> $DIR/complex_conditionals.rs:51:9
|
LL | if x.is_ok() || !(y.is_ok() && z.is_err()) {
| --------- the check is happening here
@ -179,7 +179,7 @@ LL | y.unwrap(); // unnecessary
= help: try using `if let` or `match`
error: this call to `unwrap_err()` will always panic
--> $DIR/complex_conditionals.rs:48:9
--> $DIR/complex_conditionals.rs:52:9
|
LL | if x.is_ok() || !(y.is_ok() && z.is_err()) {
| --------- because of this check
@ -188,7 +188,7 @@ LL | y.unwrap_err(); // will panic
| ^^^^^^^^^^^^^^
error: this call to `unwrap()` will always panic
--> $DIR/complex_conditionals.rs:49:9
--> $DIR/complex_conditionals.rs:53:9
|
LL | if x.is_ok() || !(y.is_ok() && z.is_err()) {
| ---------- because of this check
@ -197,7 +197,7 @@ LL | z.unwrap(); // will panic
| ^^^^^^^^^^
error: called `unwrap_err` on `z` after checking its variant with `is_err`
--> $DIR/complex_conditionals.rs:50:9
--> $DIR/complex_conditionals.rs:54:9
|
LL | if x.is_ok() || !(y.is_ok() && z.is_err()) {
| ---------- the check is happening here

6
tests/ui/checked_unwrap/complex_conditionals_nested.rs
View File

@ -1,5 +1,9 @@
#![deny(clippy::panicking_unwrap, clippy::unnecessary_unwrap)]
#![allow(clippy::if_same_then_else, clippy::branches_sharing_code)]
#![allow(
clippy::if_same_then_else,
clippy::branches_sharing_code,
clippy::unnecessary_literal_unwrap
)]
fn test_nested() {
fn nested() {

4
tests/ui/checked_unwrap/complex_conditionals_nested.stderr
View File

@ -1,5 +1,5 @@
error: called `unwrap` on `x` after checking its variant with `is_some`
--> $DIR/complex_conditionals_nested.rs:8:13
--> $DIR/complex_conditionals_nested.rs:12:13
|
LL | if x.is_some() {
| -------------- help: try: `if let Some(..) = x`
@ -13,7 +13,7 @@ LL | #![deny(clippy::panicking_unwrap, clippy::unnecessary_unwrap)]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
error: this call to `unwrap()` will always panic
--> $DIR/complex_conditionals_nested.rs:10:13
--> $DIR/complex_conditionals_nested.rs:14:13
|
LL | if x.is_some() {
| ----------- because of this check

6
tests/ui/checked_unwrap/simple_conditionals.rs
View File

@ -1,6 +1,10 @@
#![feature(lint_reasons)]
#![deny(clippy::panicking_unwrap, clippy::unnecessary_unwrap)]
#![allow(clippy::if_same_then_else, clippy::branches_sharing_code)]
#![allow(
clippy::if_same_then_else,
clippy::branches_sharing_code,
clippy::unnecessary_literal_unwrap
)]
macro_rules! m {
($a:expr) => {

34
tests/ui/checked_unwrap/simple_conditionals.stderr
View File

@ -1,5 +1,5 @@
error: called `unwrap` on `x` after checking its variant with `is_some`
--> $DIR/simple_conditionals.rs:40:9
--> $DIR/simple_conditionals.rs:44:9
|
LL | if x.is_some() {
| -------------- help: try: `if let Some(..) = x`
@ -13,7 +13,7 @@ LL | #![deny(clippy::panicking_unwrap, clippy::unnecessary_unwrap)]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
error: called `expect` on `x` after checking its variant with `is_some`
--> $DIR/simple_conditionals.rs:41:9
--> $DIR/simple_conditionals.rs:45:9
|
LL | if x.is_some() {
| -------------- help: try: `if let Some(..) = x`
@ -22,7 +22,7 @@ LL | x.expect("an error message"); // unnecessary
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: this call to `unwrap()` will always panic
--> $DIR/simple_conditionals.rs:43:9
--> $DIR/simple_conditionals.rs:47:9
|
LL | if x.is_some() {
| ----------- because of this check
@ -37,7 +37,7 @@ LL | #![deny(clippy::panicking_unwrap, clippy::unnecessary_unwrap)]
| ^^^^^^^^^^^^^^^^^^^^^^^^
error: this call to `expect()` will always panic
--> $DIR/simple_conditionals.rs:44:9
--> $DIR/simple_conditionals.rs:48:9
|
LL | if x.is_some() {
| ----------- because of this check
@ -46,7 +46,7 @@ LL | x.expect("an error message"); // will panic
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: this call to `unwrap()` will always panic
--> $DIR/simple_conditionals.rs:47:9
--> $DIR/simple_conditionals.rs:51:9
|
LL | if x.is_none() {
| ----------- because of this check
@ -54,7 +54,7 @@ LL | x.unwrap(); // will panic
| ^^^^^^^^^^
error: called `unwrap` on `x` after checking its variant with `is_none`
--> $DIR/simple_conditionals.rs:49:9
--> $DIR/simple_conditionals.rs:53:9
|
LL | if x.is_none() {
| -------------- help: try: `if let Some(..) = x`
@ -63,7 +63,7 @@ LL | x.unwrap(); // unnecessary
| ^^^^^^^^^^
error: called `unwrap` on `x` after checking its variant with `is_some`
--> $DIR/simple_conditionals.rs:8:13
--> $DIR/simple_conditionals.rs:12:13
|
LL | if $a.is_some() {
| --------------- help: try: `if let Some(..) = x`
@ -76,7 +76,7 @@ LL | m!(x);
= note: this error originates in the macro `m` (in Nightly builds, run with -Z macro-backtrace for more info)
error: called `unwrap` on `x` after checking its variant with `is_ok`
--> $DIR/simple_conditionals.rs:57:9
--> $DIR/simple_conditionals.rs:61:9
|
LL | if x.is_ok() {
| ------------ help: try: `if let Ok(..) = x`
@ -84,7 +84,7 @@ LL | x.unwrap(); // unnecessary
| ^^^^^^^^^^
error: called `expect` on `x` after checking its variant with `is_ok`
--> $DIR/simple_conditionals.rs:58:9
--> $DIR/simple_conditionals.rs:62:9
|
LL | if x.is_ok() {
| ------------ help: try: `if let Ok(..) = x`
@ -93,7 +93,7 @@ LL | x.expect("an error message"); // unnecessary
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: this call to `unwrap_err()` will always panic
--> $DIR/simple_conditionals.rs:59:9
--> $DIR/simple_conditionals.rs:63:9
|
LL | if x.is_ok() {
| --------- because of this check
@ -102,7 +102,7 @@ LL | x.unwrap_err(); // will panic
| ^^^^^^^^^^^^^^
error: this call to `unwrap()` will always panic
--> $DIR/simple_conditionals.rs:61:9
--> $DIR/simple_conditionals.rs:65:9
|
LL | if x.is_ok() {
| --------- because of this check
@ -111,7 +111,7 @@ LL | x.unwrap(); // will panic
| ^^^^^^^^^^
error: this call to `expect()` will always panic
--> $DIR/simple_conditionals.rs:62:9
--> $DIR/simple_conditionals.rs:66:9
|
LL | if x.is_ok() {
| --------- because of this check
@ -120,7 +120,7 @@ LL | x.expect("an error message"); // will panic
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: called `unwrap_err` on `x` after checking its variant with `is_ok`
--> $DIR/simple_conditionals.rs:63:9
--> $DIR/simple_conditionals.rs:67:9
|
LL | if x.is_ok() {
| ------------ help: try: `if let Err(..) = x`
@ -129,7 +129,7 @@ LL | x.unwrap_err(); // unnecessary
| ^^^^^^^^^^^^^^
error: this call to `unwrap()` will always panic
--> $DIR/simple_conditionals.rs:66:9
--> $DIR/simple_conditionals.rs:70:9
|
LL | if x.is_err() {
| ---------- because of this check
@ -137,7 +137,7 @@ LL | x.unwrap(); // will panic
| ^^^^^^^^^^
error: called `unwrap_err` on `x` after checking its variant with `is_err`
--> $DIR/simple_conditionals.rs:67:9
--> $DIR/simple_conditionals.rs:71:9
|
LL | if x.is_err() {
| ------------- help: try: `if let Err(..) = x`
@ -146,7 +146,7 @@ LL | x.unwrap_err(); // unnecessary
| ^^^^^^^^^^^^^^
error: called `unwrap` on `x` after checking its variant with `is_err`
--> $DIR/simple_conditionals.rs:69:9
--> $DIR/simple_conditionals.rs:73:9
|
LL | if x.is_err() {
| ------------- help: try: `if let Ok(..) = x`
@ -155,7 +155,7 @@ LL | x.unwrap(); // unnecessary
| ^^^^^^^^^^
error: this call to `unwrap_err()` will always panic
--> $DIR/simple_conditionals.rs:70:9
--> $DIR/simple_conditionals.rs:74:9
|
LL | if x.is_err() {
| ---------- because of this check

2
tests/ui/crashes/ice-5579.rs
View File

@ -1,3 +1,5 @@
#![allow(clippy::unnecessary_literal_unwrap)]
trait IsErr {
fn is_err(&self, err: &str) -> bool;
}

2
tests/ui/err_expect.fixed
View File

@ -1,6 +1,6 @@
//@run-rustfix
#![allow(unused)]
#![allow(unused, clippy::unnecessary_literal_unwrap)]
struct MyTypeNonDebug;

2
tests/ui/err_expect.rs
View File

@ -1,6 +1,6 @@
//@run-rustfix
#![allow(unused)]
#![allow(unused, clippy::unnecessary_literal_unwrap)]
struct MyTypeNonDebug;

1
tests/ui/expect.rs
View File

@ -1,4 +1,5 @@
#![warn(clippy::expect_used)]
#![allow(clippy::unnecessary_literal_unwrap)]
fn expect_option() {
let opt = Some(0);

6
tests/ui/expect.stderr
View File

@ -1,5 +1,5 @@
error: used `expect()` on an `Option` value
--> $DIR/expect.rs:5:13
--> $DIR/expect.rs:6:13
|
LL | let _ = opt.expect("");
| ^^^^^^^^^^^^^^
@ -8,7 +8,7 @@ LL | let _ = opt.expect("");
= note: `-D clippy::expect-used` implied by `-D warnings`
error: used `expect()` on a `Result` value
--> $DIR/expect.rs:10:13
--> $DIR/expect.rs:11:13
|
LL | let _ = res.expect("");
| ^^^^^^^^^^^^^^
@ -16,7 +16,7 @@ LL | let _ = res.expect("");
= help: if this value is an `Err`, it will panic
error: used `expect_err()` on a `Result` value
--> $DIR/expect.rs:11:13
--> $DIR/expect.rs:12:13
|
LL | let _ = res.expect_err("");
| ^^^^^^^^^^^^^^^^^^

6
tests/ui/expect_fun_call.fixed
View File

@ -1,6 +1,10 @@
//@run-rustfix
#![warn(clippy::expect_fun_call)]
#![allow(clippy::to_string_in_format_args, clippy::uninlined_format_args)]
#![allow(
clippy::to_string_in_format_args,
clippy::uninlined_format_args,
clippy::unnecessary_literal_unwrap
)]
/// Checks implementation of the `EXPECT_FUN_CALL` lint

6
tests/ui/expect_fun_call.rs
View File

@ -1,6 +1,10 @@
//@run-rustfix
#![warn(clippy::expect_fun_call)]
#![allow(clippy::to_string_in_format_args, clippy::uninlined_format_args)]
#![allow(
clippy::to_string_in_format_args,
clippy::uninlined_format_args,
clippy::unnecessary_literal_unwrap
)]
/// Checks implementation of the `EXPECT_FUN_CALL` lint

30
tests/ui/expect_fun_call.stderr
View File

@ -1,5 +1,5 @@
error: use of `expect` followed by a function call
--> $DIR/expect_fun_call.rs:34:26
--> $DIR/expect_fun_call.rs:38:26
|
LL | with_none_and_format.expect(&format!("Error {}: fake error", error_code));
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| panic!("Error {}: fake error", error_code))`
@ -7,85 +7,85 @@ LL | with_none_and_format.expect(&format!("Error {}: fake error", error_code
= note: `-D clippy::expect-fun-call` implied by `-D warnings`
error: use of `expect` followed by a function call
--> $DIR/expect_fun_call.rs:37:26
--> $DIR/expect_fun_call.rs:41:26
|
LL | with_none_and_as_str.expect(format!("Error {}: fake error", error_code).as_str());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| panic!("Error {}: fake error", error_code))`
error: use of `expect` followed by a function call
--> $DIR/expect_fun_call.rs:40:37
--> $DIR/expect_fun_call.rs:44:37
|
LL | with_none_and_format_with_macro.expect(format!("Error {}: fake error", one!()).as_str());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| panic!("Error {}: fake error", one!()))`
error: use of `expect` followed by a function call
--> $DIR/expect_fun_call.rs:50:25
--> $DIR/expect_fun_call.rs:54:25
|
LL | with_err_and_format.expect(&format!("Error {}: fake error", error_code));
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| panic!("Error {}: fake error", error_code))`
error: use of `expect` followed by a function call
--> $DIR/expect_fun_call.rs:53:25
--> $DIR/expect_fun_call.rs:57:25
|
LL | with_err_and_as_str.expect(format!("Error {}: fake error", error_code).as_str());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| panic!("Error {}: fake error", error_code))`
error: use of `expect` followed by a function call
--> $DIR/expect_fun_call.rs:65:17
--> $DIR/expect_fun_call.rs:69:17
|
LL | Some("foo").expect(format!("{} {}", 1, 2).as_ref());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| panic!("{} {}", 1, 2))`
error: use of `expect` followed by a function call
--> $DIR/expect_fun_call.rs:86:21
--> $DIR/expect_fun_call.rs:90:21
|
LL | Some("foo").expect(&get_string());
| ^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| { panic!("{}", get_string()) })`
error: use of `expect` followed by a function call
--> $DIR/expect_fun_call.rs:87:21
--> $DIR/expect_fun_call.rs:91:21
|
LL | Some("foo").expect(get_string().as_ref());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| { panic!("{}", get_string()) })`
error: use of `expect` followed by a function call
--> $DIR/expect_fun_call.rs:88:21
--> $DIR/expect_fun_call.rs:92:21
|
LL | Some("foo").expect(get_string().as_str());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| { panic!("{}", get_string()) })`
error: use of `expect` followed by a function call
--> $DIR/expect_fun_call.rs:90:21
--> $DIR/expect_fun_call.rs:94:21
|
LL | Some("foo").expect(get_static_str());
| ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| { panic!("{}", get_static_str()) })`
error: use of `expect` followed by a function call
--> $DIR/expect_fun_call.rs:91:21
--> $DIR/expect_fun_call.rs:95:21
|
LL | Some("foo").expect(get_non_static_str(&0));
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| { panic!("{}", get_non_static_str(&0).to_string()) })`
error: use of `expect` followed by a function call
--> $DIR/expect_fun_call.rs:95:16
--> $DIR/expect_fun_call.rs:99:16
|
LL | Some(true).expect(&format!("key {}, {}", 1, 2));
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| panic!("key {}, {}", 1, 2))`
error: use of `expect` followed by a function call
--> $DIR/expect_fun_call.rs:101:17
--> $DIR/expect_fun_call.rs:105:17
|
LL | opt_ref.expect(&format!("{:?}", opt_ref));
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| panic!("{:?}", opt_ref))`
error: use of `expect` followed by a function call
--> $DIR/expect_fun_call.rs:105:20
--> $DIR/expect_fun_call.rs:109:20
|
LL | format_capture.expect(&format!("{error_code}"));
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| panic!("{error_code}"))`
error: use of `expect` followed by a function call
--> $DIR/expect_fun_call.rs:108:30
--> $DIR/expect_fun_call.rs:112:30
|
LL | format_capture_and_value.expect(&format!("{error_code}, {}", 1));
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| panic!("{error_code}, {}", 1))`

3
tests/ui/explicit_deref_methods.fixed
View File

@ -7,7 +7,8 @@
clippy::explicit_auto_deref,
clippy::needless_borrow,
clippy::no_effect,
clippy::uninlined_format_args
clippy::uninlined_format_args,
clippy::unnecessary_literal_unwrap
)]
use std::ops::{Deref, DerefMut};

3
tests/ui/explicit_deref_methods.rs
View File

@ -7,7 +7,8 @@
clippy::explicit_auto_deref,
clippy::needless_borrow,
clippy::no_effect,
clippy::uninlined_format_args
clippy::uninlined_format_args,
clippy::unnecessary_literal_unwrap
)]
use std::ops::{Deref, DerefMut};

24
tests/ui/explicit_deref_methods.stderr
View File

@ -1,5 +1,5 @@
error: explicit `deref` method call
--> $DIR/explicit_deref_methods.rs:53:19
--> $DIR/explicit_deref_methods.rs:54:19
|
LL | let b: &str = a.deref();
| ^^^^^^^^^ help: try this: `&*a`
@ -7,67 +7,67 @@ LL | let b: &str = a.deref();
= note: `-D clippy::explicit-deref-methods` implied by `-D warnings`
error: explicit `deref_mut` method call
--> $DIR/explicit_deref_methods.rs:55:23
--> $DIR/explicit_deref_methods.rs:56:23
|
LL | let b: &mut str = a.deref_mut();
| ^^^^^^^^^^^^^ help: try this: `&mut **a`
error: explicit `deref` method call
--> $DIR/explicit_deref_methods.rs:58:39
--> $DIR/explicit_deref_methods.rs:59:39
|
LL | let b: String = format!("{}, {}", a.deref(), a.deref());
| ^^^^^^^^^ help: try this: `&*a`
error: explicit `deref` method call
--> $DIR/explicit_deref_methods.rs:58:50
--> $DIR/explicit_deref_methods.rs:59:50
|
LL | let b: String = format!("{}, {}", a.deref(), a.deref());
| ^^^^^^^^^ help: try this: `&*a`
error: explicit `deref` method call
--> $DIR/explicit_deref_methods.rs:60:20
--> $DIR/explicit_deref_methods.rs:61:20
|
LL | println!("{}", a.deref());
| ^^^^^^^^^ help: try this: `&*a`
error: explicit `deref` method call
--> $DIR/explicit_deref_methods.rs:63:11
--> $DIR/explicit_deref_methods.rs:64:11
|
LL | match a.deref() {
| ^^^^^^^^^ help: try this: `&*a`
error: explicit `deref` method call
--> $DIR/explicit_deref_methods.rs:67:28
--> $DIR/explicit_deref_methods.rs:68:28
|
LL | let b: String = concat(a.deref());
| ^^^^^^^^^ help: try this: `&*a`
error: explicit `deref` method call
--> $DIR/explicit_deref_methods.rs:69:13
--> $DIR/explicit_deref_methods.rs:70:13
|
LL | let b = just_return(a).deref();
| ^^^^^^^^^^^^^^^^^^^^^^ help: try this: `just_return(a)`
error: explicit `deref` method call
--> $DIR/explicit_deref_methods.rs:71:28
--> $DIR/explicit_deref_methods.rs:72:28
|
LL | let b: String = concat(just_return(a).deref());
| ^^^^^^^^^^^^^^^^^^^^^^ help: try this: `just_return(a)`
error: explicit `deref` method call
--> $DIR/explicit_deref_methods.rs:73:19
--> $DIR/explicit_deref_methods.rs:74:19
|
LL | let b: &str = a.deref().deref();
| ^^^^^^^^^^^^^^^^^ help: try this: `&**a`
error: explicit `deref` method call
--> $DIR/explicit_deref_methods.rs:76:13
--> $DIR/explicit_deref_methods.rs:77:13
|
LL | let b = opt_a.unwrap().deref();
| ^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&*opt_a.unwrap()`
error: explicit `deref` method call
--> $DIR/explicit_deref_methods.rs:113:31
--> $DIR/explicit_deref_methods.rs:114:31
|
LL | let b: &str = expr_deref!(a.deref());
| ^^^^^^^^^ help: try this: `&*a`

2
tests/ui/manual_unwrap_or.fixed
View File

@ -1,6 +1,6 @@
//@run-rustfix
#![allow(dead_code)]
#![allow(unused_variables, clippy::unnecessary_wraps)]
#![allow(unused_variables, clippy::unnecessary_wraps, clippy::unnecessary_literal_unwrap)]
fn option_unwrap_or() {
// int case

2
tests/ui/manual_unwrap_or.rs
View File

@ -1,6 +1,6 @@
//@run-rustfix
#![allow(dead_code)]
#![allow(unused_variables, clippy::unnecessary_wraps)]
#![allow(unused_variables, clippy::unnecessary_wraps, clippy::unnecessary_literal_unwrap)]
fn option_unwrap_or() {
// int case

2
tests/ui/missing_panics_doc.rs
View File

@ -1,5 +1,5 @@
#![warn(clippy::missing_panics_doc)]
#![allow(clippy::option_map_unit_fn)]
#![allow(clippy::option_map_unit_fn, clippy::unnecessary_literal_unwrap)]
fn main() {}
/// This needs to be documented

3
tests/ui/needless_borrow.fixed
View File

@ -4,7 +4,8 @@
unused,
clippy::uninlined_format_args,
clippy::unnecessary_mut_passed,
clippy::unnecessary_to_owned
clippy::unnecessary_to_owned,
clippy::unnecessary_literal_unwrap
)]
#![warn(clippy::needless_borrow)]

3
tests/ui/needless_borrow.rs
View File

@ -4,7 +4,8 @@
unused,
clippy::uninlined_format_args,
clippy::unnecessary_mut_passed,
clippy::unnecessary_to_owned
clippy::unnecessary_to_owned,
clippy::unnecessary_literal_unwrap
)]
#![warn(clippy::needless_borrow)]

72
tests/ui/needless_borrow.stderr
View File

@ -1,5 +1,5 @@
error: this expression creates a reference which is immediately dereferenced by the compiler
--> $DIR/needless_borrow.rs:15:15
--> $DIR/needless_borrow.rs:16:15
|
LL | let _ = x(&&a); // warn
| ^^^ help: change this to: `&a`
@ -7,211 +7,211 @@ LL | let _ = x(&&a); // warn
= note: `-D clippy::needless-borrow` implied by `-D warnings`
error: this expression creates a reference which is immediately dereferenced by the compiler
--> $DIR/needless_borrow.rs:19:13
--> $DIR/needless_borrow.rs:20:13
|
LL | mut_ref(&mut &mut b); // warn
| ^^^^^^^^^^^ help: change this to: `&mut b`
error: this expression creates a reference which is immediately dereferenced by the compiler
--> $DIR/needless_borrow.rs:31:13
--> $DIR/needless_borrow.rs:32:13
|
LL | &&a
| ^^^ help: change this to: `&a`
error: this expression creates a reference which is immediately dereferenced by the compiler
--> $DIR/needless_borrow.rs:33:15
--> $DIR/needless_borrow.rs:34:15
|
LL | 46 => &&a,
| ^^^ help: change this to: `&a`
error: this expression creates a reference which is immediately dereferenced by the compiler
--> $DIR/needless_borrow.rs:39:27
--> $DIR/needless_borrow.rs:40:27
|
LL | break &ref_a;
| ^^^^^^ help: change this to: `ref_a`
error: this expression creates a reference which is immediately dereferenced by the compiler
--> $DIR/needless_borrow.rs:46:15
--> $DIR/needless_borrow.rs:47:15
|
LL | let _ = x(&&&a);
| ^^^^ help: change this to: `&a`
error: this expression creates a reference which is immediately dereferenced by the compiler
--> $DIR/needless_borrow.rs:47:15
--> $DIR/needless_borrow.rs:48:15
|
LL | let _ = x(&mut &&a);
| ^^^^^^^^ help: change this to: `&a`
error: this expression creates a reference which is immediately dereferenced by the compiler
--> $DIR/needless_borrow.rs:48:15
--> $DIR/needless_borrow.rs:49:15
|
LL | let _ = x(&&&mut b);
| ^^^^^^^^ help: change this to: `&mut b`
error: this expression creates a reference which is immediately dereferenced by the compiler
--> $DIR/needless_borrow.rs:49:15
--> $DIR/needless_borrow.rs:50:15
|
LL | let _ = x(&&ref_a);
| ^^^^^^^ help: change this to: `ref_a`
error: this expression creates a reference which is immediately dereferenced by the compiler
--> $DIR/needless_borrow.rs:52:11
--> $DIR/needless_borrow.rs:53:11
|
LL | x(&b);
| ^^ help: change this to: `b`
error: this expression creates a reference which is immediately dereferenced by the compiler
--> $DIR/needless_borrow.rs:59:13
--> $DIR/needless_borrow.rs:60:13
|
LL | mut_ref(&mut x);
| ^^^^^^ help: change this to: `x`
error: this expression creates a reference which is immediately dereferenced by the compiler
--> $DIR/needless_borrow.rs:60:13
--> $DIR/needless_borrow.rs:61:13
|
LL | mut_ref(&mut &mut x);
| ^^^^^^^^^^^ help: change this to: `x`
error: this expression creates a reference which is immediately dereferenced by the compiler
--> $DIR/needless_borrow.rs:61:23
--> $DIR/needless_borrow.rs:62:23
|
LL | let y: &mut i32 = &mut x;
| ^^^^^^ help: change this to: `x`
error: this expression creates a reference which is immediately dereferenced by the compiler
--> $DIR/needless_borrow.rs:62:23
--> $DIR/needless_borrow.rs:63:23
|
LL | let y: &mut i32 = &mut &mut x;
| ^^^^^^^^^^^ help: change this to: `x`
error: this expression creates a reference which is immediately dereferenced by the compiler
--> $DIR/needless_borrow.rs:71:14
--> $DIR/needless_borrow.rs:72:14
|
LL | 0 => &mut x,
| ^^^^^^ help: change this to: `x`
error: this expression creates a reference which is immediately dereferenced by the compiler
--> $DIR/needless_borrow.rs:77:14
--> $DIR/needless_borrow.rs:78:14
|
LL | 0 => &mut x,
| ^^^^^^ help: change this to: `x`
error: this expression borrows a value the compiler would automatically borrow
--> $DIR/needless_borrow.rs:89:13
--> $DIR/needless_borrow.rs:90:13
|
LL | let _ = (&x).0;
| ^^^^ help: change this to: `x`
error: this expression borrows a value the compiler would automatically borrow
--> $DIR/needless_borrow.rs:91:22
--> $DIR/needless_borrow.rs:92:22
|
LL | let _ = unsafe { (&*x).0 };
| ^^^^^ help: change this to: `(*x)`
error: this expression creates a reference which is immediately dereferenced by the compiler
--> $DIR/needless_borrow.rs:101:5
--> $DIR/needless_borrow.rs:102:5
|
LL | (&&()).foo();
| ^^^^^^ help: change this to: `(&())`
error: this expression creates a reference which is immediately dereferenced by the compiler
--> $DIR/needless_borrow.rs:110:5
--> $DIR/needless_borrow.rs:111:5
|
LL | (&&5).foo();
| ^^^^^ help: change this to: `(&5)`
error: the borrowed expression implements the required traits
--> $DIR/needless_borrow.rs:135:51
--> $DIR/needless_borrow.rs:136:51
|
LL | let _ = std::process::Command::new("ls").args(&["-a", "-l"]).status().unwrap();
| ^^^^^^^^^^^^^ help: change this to: `["-a", "-l"]`
error: the borrowed expression implements the required traits
--> $DIR/needless_borrow.rs:136:44
--> $DIR/needless_borrow.rs:137:44
|
LL | let _ = std::path::Path::new(".").join(&&".");
| ^^^^^ help: change this to: `"."`
error: the borrowed expression implements the required traits
--> $DIR/needless_borrow.rs:137:23
--> $DIR/needless_borrow.rs:138:23
|
LL | deref_target_is_x(&X);
| ^^ help: change this to: `X`
error: the borrowed expression implements the required traits
--> $DIR/needless_borrow.rs:138:26
--> $DIR/needless_borrow.rs:139:26
|
LL | multiple_constraints(&[[""]]);
| ^^^^^^^ help: change this to: `[[""]]`
error: the borrowed expression implements the required traits
--> $DIR/needless_borrow.rs:139:45
--> $DIR/needless_borrow.rs:140:45
|
LL | multiple_constraints_normalizes_to_same(&X, X);
| ^^ help: change this to: `X`
error: this expression creates a reference which is immediately dereferenced by the compiler
--> $DIR/needless_borrow.rs:140:32
--> $DIR/needless_borrow.rs:141:32
|
LL | let _ = Some("").unwrap_or(&"");
| ^^^ help: change this to: `""`
error: the borrowed expression implements the required traits
--> $DIR/needless_borrow.rs:141:33
--> $DIR/needless_borrow.rs:142:33
|
LL | let _ = std::fs::write("x", &"".to_string());
| ^^^^^^^^^^^^^^^ help: change this to: `"".to_string()`
error: this expression borrows a value the compiler would automatically borrow
--> $DIR/needless_borrow.rs:190:13
--> $DIR/needless_borrow.rs:191:13
|
LL | (&self.f)()
| ^^^^^^^^^ help: change this to: `(self.f)`
error: this expression borrows a value the compiler would automatically borrow
--> $DIR/needless_borrow.rs:199:13
--> $DIR/needless_borrow.rs:200:13
|
LL | (&mut self.f)()
| ^^^^^^^^^^^^^ help: change this to: `(self.f)`
error: the borrowed expression implements the required traits
--> $DIR/needless_borrow.rs:283:20
--> $DIR/needless_borrow.rs:284:20
|
LL | takes_iter(&mut x)
| ^^^^^^ help: change this to: `x`
error: the borrowed expression implements the required traits
--> $DIR/needless_borrow.rs:297:55
--> $DIR/needless_borrow.rs:298:55
|
LL | let _ = std::process::Command::new("ls").args(&["-a", "-l"]).status().unwrap();
| ^^^^^^^^^^^^^ help: change this to: `["-a", "-l"]`
error: the borrowed expression implements the required traits
--> $DIR/needless_borrow.rs:335:37
--> $DIR/needless_borrow.rs:336:37
|
LL | let _ = std::fs::write("x", &arg);
| ^^^^ help: change this to: `arg`
error: the borrowed expression implements the required traits
--> $DIR/needless_borrow.rs:336:37
--> $DIR/needless_borrow.rs:337:37
|
LL | let _ = std::fs::write("x", &loc);
| ^^^^ help: change this to: `loc`
error: the borrowed expression implements the required traits
--> $DIR/needless_borrow.rs:354:15
--> $DIR/needless_borrow.rs:355:15
|
LL | debug(&x);
| ^^ help: change this to: `x`
error: the borrowed expression implements the required traits
--> $DIR/needless_borrow.rs:363:15
--> $DIR/needless_borrow.rs:364:15
|
LL | use_x(&x);
| ^^ help: change this to: `x`
error: the borrowed expression implements the required traits
--> $DIR/needless_borrow.rs:457:13
--> $DIR/needless_borrow.rs:458:13
|
LL | foo(&a);
| ^^ help: change this to: `a`

6
tests/ui/needless_range_loop.rs
View File

@ -1,5 +1,9 @@
#![warn(clippy::needless_range_loop)]
#![allow(clippy::uninlined_format_args, clippy::useless_vec)]
#![allow(
clippy::uninlined_format_args,
clippy::unnecessary_literal_unwrap,
clippy::useless_vec
)]
static STATIC: [usize; 4] = [0, 1, 8, 16];
const CONST: [usize; 4] = [0, 1, 8, 16];

28
tests/ui/needless_range_loop.stderr
View File

@ -1,5 +1,5 @@
error: the loop variable `i` is only used to index `vec`
--> $DIR/needless_range_loop.rs:11:14
--> $DIR/needless_range_loop.rs:15:14
|
LL | for i in 0..vec.len() {
| ^^^^^^^^^^^^
@ -11,7 +11,7 @@ LL | for <item> in &vec {
| ~~~~~~ ~~~~
error: the loop variable `i` is only used to index `vec`
--> $DIR/needless_range_loop.rs:20:14
--> $DIR/needless_range_loop.rs:24:14
|
LL | for i in 0..vec.len() {
| ^^^^^^^^^^^^
@ -22,7 +22,7 @@ LL | for <item> in &vec {
| ~~~~~~ ~~~~
error: the loop variable `j` is only used to index `STATIC`
--> $DIR/needless_range_loop.rs:25:14
--> $DIR/needless_range_loop.rs:29:14
|
LL | for j in 0..4 {
| ^^^^
@ -33,7 +33,7 @@ LL | for <item> in &STATIC {
| ~~~~~~ ~~~~~~~
error: the loop variable `j` is only used to index `CONST`
--> $DIR/needless_range_loop.rs:29:14
--> $DIR/needless_range_loop.rs:33:14
|
LL | for j in 0..4 {
| ^^^^
@ -44,7 +44,7 @@ LL | for <item> in &CONST {
| ~~~~~~ ~~~~~~
error: the loop variable `i` is used to index `vec`
--> $DIR/needless_range_loop.rs:33:14
--> $DIR/needless_range_loop.rs:37:14
|
LL | for i in 0..vec.len() {
| ^^^^^^^^^^^^
@ -55,7 +55,7 @@ LL | for (i, <item>) in vec.iter().enumerate() {
| ~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~
error: the loop variable `i` is only used to index `vec2`
--> $DIR/needless_range_loop.rs:41:14
--> $DIR/needless_range_loop.rs:45:14
|
LL | for i in 0..vec.len() {
| ^^^^^^^^^^^^
@ -66,7 +66,7 @@ LL | for <item> in vec2.iter().take(vec.len()) {
| ~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~
error: the loop variable `i` is only used to index `vec`
--> $DIR/needless_range_loop.rs:45:14
--> $DIR/needless_range_loop.rs:49:14
|
LL | for i in 5..vec.len() {
| ^^^^^^^^^^^^
@ -77,7 +77,7 @@ LL | for <item> in vec.iter().skip(5) {
| ~~~~~~ ~~~~~~~~~~~~~~~~~~
error: the loop variable `i` is only used to index `vec`
--> $DIR/needless_range_loop.rs:49:14
--> $DIR/needless_range_loop.rs:53:14
|
LL | for i in 0..MAX_LEN {
| ^^^^^^^^^^
@ -88,7 +88,7 @@ LL | for <item> in vec.iter().take(MAX_LEN) {
| ~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~
error: the loop variable `i` is only used to index `vec`
--> $DIR/needless_range_loop.rs:53:14
--> $DIR/needless_range_loop.rs:57:14
|
LL | for i in 0..=MAX_LEN {
| ^^^^^^^^^^^
@ -99,7 +99,7 @@ LL | for <item> in vec.iter().take(MAX_LEN + 1) {
| ~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
error: the loop variable `i` is only used to index `vec`
--> $DIR/needless_range_loop.rs:57:14
--> $DIR/needless_range_loop.rs:61:14
|
LL | for i in 5..10 {
| ^^^^^
@ -110,7 +110,7 @@ LL | for <item> in vec.iter().take(10).skip(5) {
| ~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~
error: the loop variable `i` is only used to index `vec`
--> $DIR/needless_range_loop.rs:61:14
--> $DIR/needless_range_loop.rs:65:14
|
LL | for i in 5..=10 {
| ^^^^^^
@ -121,7 +121,7 @@ LL | for <item> in vec.iter().take(10 + 1).skip(5) {
| ~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
error: the loop variable `i` is used to index `vec`
--> $DIR/needless_range_loop.rs:65:14
--> $DIR/needless_range_loop.rs:69:14
|
LL | for i in 5..vec.len() {
| ^^^^^^^^^^^^
@ -132,7 +132,7 @@ LL | for (i, <item>) in vec.iter().enumerate().skip(5) {
| ~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
error: the loop variable `i` is used to index `vec`
--> $DIR/needless_range_loop.rs:69:14
--> $DIR/needless_range_loop.rs:73:14
|
LL | for i in 5..10 {
| ^^^^^
@ -143,7 +143,7 @@ LL | for (i, <item>) in vec.iter().enumerate().take(10).skip(5) {
| ~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
error: the loop variable `i` is used to index `vec`
--> $DIR/needless_range_loop.rs:74:14
--> $DIR/needless_range_loop.rs:78:14
|
LL | for i in 0..vec.len() {
| ^^^^^^^^^^^^

2
tests/ui/ok_expect.rs
View File

@ -1,3 +1,5 @@
#![allow(clippy::unnecessary_literal_unwrap)]
use std::io;
struct MyError(()); // doesn't implement Debug

10
tests/ui/ok_expect.stderr
View File

@ -1,5 +1,5 @@
error: called `ok().expect()` on a `Result` value
--> $DIR/ok_expect.rs:14:5
--> $DIR/ok_expect.rs:16:5
|
LL | res.ok().expect("disaster!");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -8,7 +8,7 @@ LL | res.ok().expect("disaster!");
= note: `-D clippy::ok-expect` implied by `-D warnings`
error: called `ok().expect()` on a `Result` value
--> $DIR/ok_expect.rs:20:5
--> $DIR/ok_expect.rs:22:5
|
LL | res3.ok().expect("whoof");
| ^^^^^^^^^^^^^^^^^^^^^^^^^
@ -16,7 +16,7 @@ LL | res3.ok().expect("whoof");
= help: you can call `expect()` directly on the `Result`
error: called `ok().expect()` on a `Result` value
--> $DIR/ok_expect.rs:22:5
--> $DIR/ok_expect.rs:24:5
|
LL | res4.ok().expect("argh");
| ^^^^^^^^^^^^^^^^^^^^^^^^
@ -24,7 +24,7 @@ LL | res4.ok().expect("argh");
= help: you can call `expect()` directly on the `Result`
error: called `ok().expect()` on a `Result` value
--> $DIR/ok_expect.rs:24:5
--> $DIR/ok_expect.rs:26:5
|
LL | res5.ok().expect("oops");
| ^^^^^^^^^^^^^^^^^^^^^^^^
@ -32,7 +32,7 @@ LL | res5.ok().expect("oops");
= help: you can call `expect()` directly on the `Result`
error: called `ok().expect()` on a `Result` value
--> $DIR/ok_expect.rs:26:5
--> $DIR/ok_expect.rs:28:5
|
LL | res6.ok().expect("meh");
| ^^^^^^^^^^^^^^^^^^^^^^^

1
tests/ui/or_fun_call.fixed
View File

@ -5,6 +5,7 @@
clippy::borrow_as_ptr,
clippy::uninlined_format_args,
clippy::unnecessary_wraps,
clippy::unnecessary_literal_unwrap,
clippy::useless_vec
)]

1
tests/ui/or_fun_call.rs
View File

@ -5,6 +5,7 @@
clippy::borrow_as_ptr,
clippy::uninlined_format_args,
clippy::unnecessary_wraps,
clippy::unnecessary_literal_unwrap,
clippy::useless_vec
)]

56
tests/ui/or_fun_call.stderr
View File

@ -1,5 +1,5 @@
error: use of `unwrap_or` followed by a function call
--> $DIR/or_fun_call.rs:53:22
--> $DIR/or_fun_call.rs:54:22
|
LL | with_constructor.unwrap_or(make());
| ^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(make)`
@ -7,163 +7,163 @@ LL | with_constructor.unwrap_or(make());
= note: `-D clippy::or-fun-call` implied by `-D warnings`
error: use of `unwrap_or` followed by a call to `new`
--> $DIR/or_fun_call.rs:56:14
--> $DIR/or_fun_call.rs:57:14
|
LL | with_new.unwrap_or(Vec::new());
| ^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_default()`
error: use of `unwrap_or` followed by a function call
--> $DIR/or_fun_call.rs:59:21
--> $DIR/or_fun_call.rs:60:21
|
LL | with_const_args.unwrap_or(Vec::with_capacity(12));
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| Vec::with_capacity(12))`
error: use of `unwrap_or` followed by a function call
--> $DIR/or_fun_call.rs:62:14
--> $DIR/or_fun_call.rs:63:14
|
LL | with_err.unwrap_or(make());
| ^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| make())`
error: use of `unwrap_or` followed by a function call
--> $DIR/or_fun_call.rs:65:19
--> $DIR/or_fun_call.rs:66:19
|
LL | with_err_args.unwrap_or(Vec::with_capacity(12));
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| Vec::with_capacity(12))`
error: use of `unwrap_or` followed by a call to `default`
--> $DIR/or_fun_call.rs:68:24
--> $DIR/or_fun_call.rs:69:24
|
LL | with_default_trait.unwrap_or(Default::default());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_default()`
error: use of `unwrap_or` followed by a call to `default`
--> $DIR/or_fun_call.rs:71:23
--> $DIR/or_fun_call.rs:72:23
|
LL | with_default_type.unwrap_or(u64::default());
| ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_default()`
error: use of `unwrap_or` followed by a function call
--> $DIR/or_fun_call.rs:74:18
--> $DIR/or_fun_call.rs:75:18
|
LL | self_default.unwrap_or(<FakeDefault>::default());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(<FakeDefault>::default)`
error: use of `unwrap_or` followed by a call to `default`
--> $DIR/or_fun_call.rs:77:18
--> $DIR/or_fun_call.rs:78:18
|
LL | real_default.unwrap_or(<FakeDefault as Default>::default());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_default()`
error: use of `unwrap_or` followed by a call to `new`
--> $DIR/or_fun_call.rs:80:14
--> $DIR/or_fun_call.rs:81:14
|
LL | with_vec.unwrap_or(vec![]);
| ^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_default()`
error: use of `unwrap_or` followed by a function call
--> $DIR/or_fun_call.rs:83:21
--> $DIR/or_fun_call.rs:84:21
|
LL | without_default.unwrap_or(Foo::new());
| ^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(Foo::new)`
error: use of `or_insert` followed by a call to `new`
--> $DIR/or_fun_call.rs:86:19
--> $DIR/or_fun_call.rs:87:19
|
LL | map.entry(42).or_insert(String::new());
| ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_default()`
error: use of `or_insert` followed by a call to `new`
--> $DIR/or_fun_call.rs:89:23
--> $DIR/or_fun_call.rs:90:23
|
LL | map_vec.entry(42).or_insert(vec![]);
| ^^^^^^^^^^^^^^^^^ help: try this: `or_default()`
error: use of `or_insert` followed by a call to `new`
--> $DIR/or_fun_call.rs:92:21
--> $DIR/or_fun_call.rs:93:21
|
LL | btree.entry(42).or_insert(String::new());
| ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_default()`
error: use of `or_insert` followed by a call to `new`
--> $DIR/or_fun_call.rs:95:25
--> $DIR/or_fun_call.rs:96:25
|
LL | btree_vec.entry(42).or_insert(vec![]);
| ^^^^^^^^^^^^^^^^^ help: try this: `or_default()`
error: use of `unwrap_or` followed by a call to `new`
--> $DIR/or_fun_call.rs:98:21
--> $DIR/or_fun_call.rs:99:21
|
LL | let _ = stringy.unwrap_or(String::new());
| ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_default()`
error: use of `unwrap_or` followed by a function call
--> $DIR/or_fun_call.rs:106:21
--> $DIR/or_fun_call.rs:107:21
|
LL | let _ = Some(1).unwrap_or(map[&1]);
| ^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| map[&1])`
error: use of `unwrap_or` followed by a function call
--> $DIR/or_fun_call.rs:108:21
--> $DIR/or_fun_call.rs:109:21
|
LL | let _ = Some(1).unwrap_or(map[&1]);
| ^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| map[&1])`
error: use of `or` followed by a function call
--> $DIR/or_fun_call.rs:132:35
--> $DIR/or_fun_call.rs:133:35
|
LL | let _ = Some("a".to_string()).or(Some("b".to_string()));
| ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_else(|| Some("b".to_string()))`
error: use of `unwrap_or` followed by a function call
--> $DIR/or_fun_call.rs:171:14
--> $DIR/or_fun_call.rs:172:14
|
LL | None.unwrap_or(ptr_to_ref(s));
| ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| ptr_to_ref(s))`
error: use of `unwrap_or` followed by a function call
--> $DIR/or_fun_call.rs:177:14
--> $DIR/or_fun_call.rs:178:14
|
LL | None.unwrap_or(unsafe { ptr_to_ref(s) });
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| unsafe { ptr_to_ref(s) })`
error: use of `unwrap_or` followed by a function call
--> $DIR/or_fun_call.rs:179:14
--> $DIR/or_fun_call.rs:180:14
|
LL | None.unwrap_or( unsafe { ptr_to_ref(s) } );
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| unsafe { ptr_to_ref(s) })`
error: use of `unwrap_or` followed by a call to `new`
--> $DIR/or_fun_call.rs:193:14
--> $DIR/or_fun_call.rs:194:14
|
LL | .unwrap_or(String::new());
| ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_default()`
error: use of `unwrap_or` followed by a call to `new`
--> $DIR/or_fun_call.rs:206:14
--> $DIR/or_fun_call.rs:207:14
|
LL | .unwrap_or(String::new());
| ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_default()`
error: use of `unwrap_or` followed by a call to `new`
--> $DIR/or_fun_call.rs:218:14
--> $DIR/or_fun_call.rs:219:14
|
LL | .unwrap_or(String::new());
| ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_default()`
error: use of `unwrap_or` followed by a call to `new`
--> $DIR/or_fun_call.rs:229:10
--> $DIR/or_fun_call.rs:230:10
|
LL | .unwrap_or(String::new());
| ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_default()`
error: use of `map_or` followed by a function call
--> $DIR/or_fun_call.rs:254:25
--> $DIR/or_fun_call.rs:255:25
|
LL | let _ = Some(4).map_or(g(), |v| v);
| ^^^^^^^^^^^^^^^^^^ help: try this: `map_or_else(g, |v| v)`
error: use of `map_or` followed by a function call
--> $DIR/or_fun_call.rs:255:25
--> $DIR/or_fun_call.rs:256:25
|
LL | let _ = Some(4).map_or(g(), f);
| ^^^^^^^^^^^^^^ help: try this: `map_or_else(g, f)`

2
tests/ui/or_then_unwrap.fixed
View File

@ -1,7 +1,7 @@
//@run-rustfix
#![warn(clippy::or_then_unwrap)]
#![allow(clippy::map_identity, clippy::let_unit_value)]
#![allow(clippy::map_identity, clippy::let_unit_value, clippy::unnecessary_literal_unwrap)]
struct SomeStruct;
impl SomeStruct {

2
tests/ui/or_then_unwrap.rs
View File

@ -1,7 +1,7 @@
//@run-rustfix
#![warn(clippy::or_then_unwrap)]
#![allow(clippy::map_identity, clippy::let_unit_value)]
#![allow(clippy::map_identity, clippy::let_unit_value, clippy::unnecessary_literal_unwrap)]
struct SomeStruct;
impl SomeStruct {

7
tests/ui/redundant_clone.fixed
View File

@ -2,7 +2,12 @@
// rustfix-only-machine-applicable
#![feature(lint_reasons)]
#![warn(clippy::redundant_clone)]
#![allow(clippy::drop_non_drop, clippy::implicit_clone, clippy::uninlined_format_args)]
#![allow(
clippy::drop_non_drop,
clippy::implicit_clone,
clippy::uninlined_format_args,
clippy::unnecessary_literal_unwrap
)]
use std::ffi::OsString;
use std::path::Path;

7
tests/ui/redundant_clone.rs
View File

@ -2,7 +2,12 @@
// rustfix-only-machine-applicable
#![feature(lint_reasons)]
#![warn(clippy::redundant_clone)]
#![allow(clippy::drop_non_drop, clippy::implicit_clone, clippy::uninlined_format_args)]
#![allow(
clippy::drop_non_drop,
clippy::implicit_clone,
clippy::uninlined_format_args,
clippy::unnecessary_literal_unwrap
)]
use std::ffi::OsString;
use std::path::Path;

60
tests/ui/redundant_clone.stderr
View File

@ -1,180 +1,180 @@
error: redundant clone
--> $DIR/redundant_clone.rs:11:42
--> $DIR/redundant_clone.rs:16:42
|
LL | let _s = ["lorem", "ipsum"].join(" ").to_string();
| ^^^^^^^^^^^^ help: remove this
|
note: this value is dropped without further use
--> $DIR/redundant_clone.rs:11:14
--> $DIR/redundant_clone.rs:16:14
|
LL | let _s = ["lorem", "ipsum"].join(" ").to_string();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: `-D clippy::redundant-clone` implied by `-D warnings`
error: redundant clone
--> $DIR/redundant_clone.rs:14:15
--> $DIR/redundant_clone.rs:19:15
|
LL | let _s = s.clone();
| ^^^^^^^^ help: remove this
|
note: this value is dropped without further use
--> $DIR/redundant_clone.rs:14:14
--> $DIR/redundant_clone.rs:19:14
|
LL | let _s = s.clone();
| ^
error: redundant clone
--> $DIR/redundant_clone.rs:17:15
--> $DIR/redundant_clone.rs:22:15
|
LL | let _s = s.to_string();
| ^^^^^^^^^^^^ help: remove this
|
note: this value is dropped without further use
--> $DIR/redundant_clone.rs:17:14
--> $DIR/redundant_clone.rs:22:14
|
LL | let _s = s.to_string();
| ^
error: redundant clone
--> $DIR/redundant_clone.rs:20:15
--> $DIR/redundant_clone.rs:25:15
|
LL | let _s = s.to_owned();
| ^^^^^^^^^^^ help: remove this
|
note: this value is dropped without further use
--> $DIR/redundant_clone.rs:20:14
--> $DIR/redundant_clone.rs:25:14
|
LL | let _s = s.to_owned();
| ^
error: redundant clone
--> $DIR/redundant_clone.rs:22:42
--> $DIR/redundant_clone.rs:27:42
|
LL | let _s = Path::new("/a/b/").join("c").to_owned();
| ^^^^^^^^^^^ help: remove this
|
note: this value is dropped without further use
--> $DIR/redundant_clone.rs:22:14
--> $DIR/redundant_clone.rs:27:14
|
LL | let _s = Path::new("/a/b/").join("c").to_owned();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: redundant clone
--> $DIR/redundant_clone.rs:24:42
--> $DIR/redundant_clone.rs:29:42
|
LL | let _s = Path::new("/a/b/").join("c").to_path_buf();
| ^^^^^^^^^^^^^^ help: remove this
|
note: this value is dropped without further use
--> $DIR/redundant_clone.rs:24:14
--> $DIR/redundant_clone.rs:29:14
|
LL | let _s = Path::new("/a/b/").join("c").to_path_buf();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: redundant clone
--> $DIR/redundant_clone.rs:26:29
--> $DIR/redundant_clone.rs:31:29
|
LL | let _s = OsString::new().to_owned();
| ^^^^^^^^^^^ help: remove this
|
note: this value is dropped without further use
--> $DIR/redundant_clone.rs:26:14
--> $DIR/redundant_clone.rs:31:14
|
LL | let _s = OsString::new().to_owned();
| ^^^^^^^^^^^^^^^
error: redundant clone
--> $DIR/redundant_clone.rs:28:29
--> $DIR/redundant_clone.rs:33:29
|
LL | let _s = OsString::new().to_os_string();
| ^^^^^^^^^^^^^^^ help: remove this
|
note: this value is dropped without further use
--> $DIR/redundant_clone.rs:28:14
--> $DIR/redundant_clone.rs:33:14
|
LL | let _s = OsString::new().to_os_string();
| ^^^^^^^^^^^^^^^
error: redundant clone
--> $DIR/redundant_clone.rs:39:19
--> $DIR/redundant_clone.rs:44:19
|
LL | let _t = tup.0.clone();
| ^^^^^^^^ help: remove this
|
note: this value is dropped without further use
--> $DIR/redundant_clone.rs:39:14
--> $DIR/redundant_clone.rs:44:14
|
LL | let _t = tup.0.clone();
| ^^^^^
error: redundant clone
--> $DIR/redundant_clone.rs:71:25
--> $DIR/redundant_clone.rs:76:25
|
LL | if b { (a.clone(), a.clone()) } else { (Alpha, a) }
| ^^^^^^^^ help: remove this
|
note: this value is dropped without further use
--> $DIR/redundant_clone.rs:71:24
--> $DIR/redundant_clone.rs:76:24
|
LL | if b { (a.clone(), a.clone()) } else { (Alpha, a) }
| ^
error: redundant clone
--> $DIR/redundant_clone.rs:128:15
--> $DIR/redundant_clone.rs:133:15
|
LL | let _s = s.clone();
| ^^^^^^^^ help: remove this
|
note: this value is dropped without further use
--> $DIR/redundant_clone.rs:128:14
--> $DIR/redundant_clone.rs:133:14
|
LL | let _s = s.clone();
| ^
error: redundant clone
--> $DIR/redundant_clone.rs:129:15
--> $DIR/redundant_clone.rs:134:15
|
LL | let _t = t.clone();
| ^^^^^^^^ help: remove this
|
note: this value is dropped without further use
--> $DIR/redundant_clone.rs:129:14
--> $DIR/redundant_clone.rs:134:14
|
LL | let _t = t.clone();
| ^
error: redundant clone
--> $DIR/redundant_clone.rs:139:19
--> $DIR/redundant_clone.rs:144:19
|
LL | let _f = f.clone();
| ^^^^^^^^ help: remove this
|
note: this value is dropped without further use
--> $DIR/redundant_clone.rs:139:18
--> $DIR/redundant_clone.rs:144:18
|
LL | let _f = f.clone();
| ^
error: redundant clone
--> $DIR/redundant_clone.rs:151:14
--> $DIR/redundant_clone.rs:156:14
|
LL | let y = x.clone().join("matthias");
| ^^^^^^^^ help: remove this
|
note: cloned value is neither consumed nor mutated
--> $DIR/redundant_clone.rs:151:13
--> $DIR/redundant_clone.rs:156:13
|
LL | let y = x.clone().join("matthias");
| ^^^^^^^^^
error: redundant clone
--> $DIR/redundant_clone.rs:205:11
--> $DIR/redundant_clone.rs:210:11
|
LL | foo(&x.clone(), move || {
| ^^^^^^^^ help: remove this
|
note: this value is dropped without further use
--> $DIR/redundant_clone.rs:205:10
--> $DIR/redundant_clone.rs:210:10
|
LL | foo(&x.clone(), move || {
| ^

7
tests/ui/uninlined_format_args.fixed
View File

@ -2,7 +2,12 @@
//@run-rustfix
#![warn(clippy::uninlined_format_args)]
#![allow(named_arguments_used_positionally, unused)]
#![allow(clippy::eq_op, clippy::format_in_format_args, clippy::print_literal)]
#![allow(
clippy::eq_op,
clippy::format_in_format_args,
clippy::print_literal,
clippy::unnecessary_literal_unwrap
)]
extern crate proc_macros;
use proc_macros::with_span;

7
tests/ui/uninlined_format_args.rs
View File

@ -2,7 +2,12 @@
//@run-rustfix
#![warn(clippy::uninlined_format_args)]
#![allow(named_arguments_used_positionally, unused)]
#![allow(clippy::eq_op, clippy::format_in_format_args, clippy::print_literal)]
#![allow(
clippy::eq_op,
clippy::format_in_format_args,
clippy::print_literal,
clippy::unnecessary_literal_unwrap
)]
extern crate proc_macros;
use proc_macros::with_span;

142
tests/ui/uninlined_format_args.stderr
View File

@ -1,5 +1,5 @@
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:40:5
--> $DIR/uninlined_format_args.rs:45:5
|
LL | println!("val='{}'", local_i32);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -12,7 +12,7 @@ LL + println!("val='{local_i32}'");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:41:5
--> $DIR/uninlined_format_args.rs:46:5
|
LL | println!("val='{ }'", local_i32); // 3 spaces
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -24,7 +24,7 @@ LL + println!("val='{local_i32}'"); // 3 spaces
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:42:5
--> $DIR/uninlined_format_args.rs:47:5
|
LL | println!("val='{ }'", local_i32); // tab
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -36,7 +36,7 @@ LL + println!("val='{local_i32}'"); // tab
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:43:5
--> $DIR/uninlined_format_args.rs:48:5
|
LL | println!("val='{ }'", local_i32); // space+tab
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -48,7 +48,7 @@ LL + println!("val='{local_i32}'"); // space+tab
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:44:5
--> $DIR/uninlined_format_args.rs:49:5
|
LL | println!("val='{ }'", local_i32); // tab+space
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -60,7 +60,7 @@ LL + println!("val='{local_i32}'"); // tab+space
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:45:5
--> $DIR/uninlined_format_args.rs:50:5
|
LL | / println!(
LL | | "val='{
@ -70,7 +70,7 @@ LL | | );
| |_____^
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:50:5
--> $DIR/uninlined_format_args.rs:55:5
|
LL | println!("{}", local_i32);
| ^^^^^^^^^^^^^^^^^^^^^^^^^
@ -82,7 +82,7 @@ LL + println!("{local_i32}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:51:5
--> $DIR/uninlined_format_args.rs:56:5
|
LL | println!("{}", fn_arg);
| ^^^^^^^^^^^^^^^^^^^^^^
@ -94,7 +94,7 @@ LL + println!("{fn_arg}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:52:5
--> $DIR/uninlined_format_args.rs:57:5
|
LL | println!("{:?}", local_i32);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -106,7 +106,7 @@ LL + println!("{local_i32:?}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:53:5
--> $DIR/uninlined_format_args.rs:58:5
|
LL | println!("{:#?}", local_i32);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -118,7 +118,7 @@ LL + println!("{local_i32:#?}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:54:5
--> $DIR/uninlined_format_args.rs:59:5
|
LL | println!("{:4}", local_i32);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -130,7 +130,7 @@ LL + println!("{local_i32:4}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:55:5
--> $DIR/uninlined_format_args.rs:60:5
|
LL | println!("{:04}", local_i32);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -142,7 +142,7 @@ LL + println!("{local_i32:04}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:56:5
--> $DIR/uninlined_format_args.rs:61:5
|
LL | println!("{:<3}", local_i32);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -154,7 +154,7 @@ LL + println!("{local_i32:<3}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:57:5
--> $DIR/uninlined_format_args.rs:62:5
|
LL | println!("{:#010x}", local_i32);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -166,7 +166,7 @@ LL + println!("{local_i32:#010x}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:58:5
--> $DIR/uninlined_format_args.rs:63:5
|
LL | println!("{:.1}", local_f64);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -178,7 +178,7 @@ LL + println!("{local_f64:.1}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:62:5
--> $DIR/uninlined_format_args.rs:67:5
|
LL | println!("{} {}", local_i32, local_f64);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -190,7 +190,7 @@ LL + println!("{local_i32} {local_f64}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:64:5
--> $DIR/uninlined_format_args.rs:69:5
|
LL | println!("{}", val);
| ^^^^^^^^^^^^^^^^^^^
@ -202,7 +202,7 @@ LL + println!("{val}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:65:5
--> $DIR/uninlined_format_args.rs:70:5
|
LL | println!("{}", v = val);
| ^^^^^^^^^^^^^^^^^^^^^^^
@ -214,7 +214,7 @@ LL + println!("{val}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:67:5
--> $DIR/uninlined_format_args.rs:72:5
|
LL | println!("val='{/t }'", local_i32);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -226,7 +226,7 @@ LL + println!("val='{local_i32}'");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:68:5
--> $DIR/uninlined_format_args.rs:73:5
|
LL | println!("val='{/n }'", local_i32);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -238,7 +238,7 @@ LL + println!("val='{local_i32}'");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:69:5
--> $DIR/uninlined_format_args.rs:74:5
|
LL | println!("val='{local_i32}'", local_i32 = local_i32);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -250,7 +250,7 @@ LL + println!("val='{local_i32}'");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:70:5
--> $DIR/uninlined_format_args.rs:75:5
|
LL | println!("val='{local_i32}'", local_i32 = fn_arg);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -262,7 +262,7 @@ LL + println!("val='{fn_arg}'");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:71:5
--> $DIR/uninlined_format_args.rs:76:5
|
LL | println!("{0}", local_i32);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -274,7 +274,7 @@ LL + println!("{local_i32}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:72:5
--> $DIR/uninlined_format_args.rs:77:5
|
LL | println!("{0:?}", local_i32);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -286,7 +286,7 @@ LL + println!("{local_i32:?}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:73:5
--> $DIR/uninlined_format_args.rs:78:5
|
LL | println!("{0:#?}", local_i32);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -298,7 +298,7 @@ LL + println!("{local_i32:#?}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:74:5
--> $DIR/uninlined_format_args.rs:79:5
|
LL | println!("{0:04}", local_i32);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -310,7 +310,7 @@ LL + println!("{local_i32:04}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:75:5
--> $DIR/uninlined_format_args.rs:80:5
|
LL | println!("{0:<3}", local_i32);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -322,7 +322,7 @@ LL + println!("{local_i32:<3}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:76:5
--> $DIR/uninlined_format_args.rs:81:5
|
LL | println!("{0:#010x}", local_i32);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -334,7 +334,7 @@ LL + println!("{local_i32:#010x}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:77:5
--> $DIR/uninlined_format_args.rs:82:5
|
LL | println!("{0:.1}", local_f64);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -346,7 +346,7 @@ LL + println!("{local_f64:.1}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:78:5
--> $DIR/uninlined_format_args.rs:83:5
|
LL | println!("{0} {0}", local_i32);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -358,7 +358,7 @@ LL + println!("{local_i32} {local_i32}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:79:5
--> $DIR/uninlined_format_args.rs:84:5
|
LL | println!("{1} {} {0} {}", local_i32, local_f64);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -370,7 +370,7 @@ LL + println!("{local_f64} {local_i32} {local_i32} {local_f64}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:80:5
--> $DIR/uninlined_format_args.rs:85:5
|
LL | println!("{0} {1}", local_i32, local_f64);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -382,7 +382,7 @@ LL + println!("{local_i32} {local_f64}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:81:5
--> $DIR/uninlined_format_args.rs:86:5
|
LL | println!("{1} {0}", local_i32, local_f64);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -394,7 +394,7 @@ LL + println!("{local_f64} {local_i32}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:82:5
--> $DIR/uninlined_format_args.rs:87:5
|
LL | println!("{1} {0} {1} {0}", local_i32, local_f64);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -406,7 +406,7 @@ LL + println!("{local_f64} {local_i32} {local_f64} {local_i32}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:84:5
--> $DIR/uninlined_format_args.rs:89:5
|
LL | println!("{v}", v = local_i32);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -418,7 +418,7 @@ LL + println!("{local_i32}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:85:5
--> $DIR/uninlined_format_args.rs:90:5
|
LL | println!("{local_i32:0$}", width);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -430,7 +430,7 @@ LL + println!("{local_i32:width$}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:86:5
--> $DIR/uninlined_format_args.rs:91:5
|
LL | println!("{local_i32:w$}", w = width);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -442,7 +442,7 @@ LL + println!("{local_i32:width$}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:87:5
--> $DIR/uninlined_format_args.rs:92:5
|
LL | println!("{local_i32:.0$}", prec);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -454,7 +454,7 @@ LL + println!("{local_i32:.prec$}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:88:5
--> $DIR/uninlined_format_args.rs:93:5
|
LL | println!("{local_i32:.p$}", p = prec);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -466,7 +466,7 @@ LL + println!("{local_i32:.prec$}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:89:5
--> $DIR/uninlined_format_args.rs:94:5
|
LL | println!("{:0$}", v = val);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -478,7 +478,7 @@ LL + println!("{val:val$}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:90:5
--> $DIR/uninlined_format_args.rs:95:5
|
LL | println!("{0:0$}", v = val);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -490,7 +490,7 @@ LL + println!("{val:val$}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:91:5
--> $DIR/uninlined_format_args.rs:96:5
|
LL | println!("{:0$.0$}", v = val);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -502,7 +502,7 @@ LL + println!("{val:val$.val$}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:92:5
--> $DIR/uninlined_format_args.rs:97:5
|
LL | println!("{0:0$.0$}", v = val);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -514,7 +514,7 @@ LL + println!("{val:val$.val$}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:93:5
--> $DIR/uninlined_format_args.rs:98:5
|
LL | println!("{0:0$.v$}", v = val);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -526,7 +526,7 @@ LL + println!("{val:val$.val$}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:94:5
--> $DIR/uninlined_format_args.rs:99:5
|
LL | println!("{0:v$.0$}", v = val);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -538,7 +538,7 @@ LL + println!("{val:val$.val$}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:95:5
--> $DIR/uninlined_format_args.rs:100:5
|
LL | println!("{v:0$.0$}", v = val);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -550,7 +550,7 @@ LL + println!("{val:val$.val$}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:96:5
--> $DIR/uninlined_format_args.rs:101:5
|
LL | println!("{v:v$.0$}", v = val);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -562,7 +562,7 @@ LL + println!("{val:val$.val$}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:97:5
--> $DIR/uninlined_format_args.rs:102:5
|
LL | println!("{v:0$.v$}", v = val);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -574,7 +574,7 @@ LL + println!("{val:val$.val$}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:98:5
--> $DIR/uninlined_format_args.rs:103:5
|
LL | println!("{v:v$.v$}", v = val);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -586,7 +586,7 @@ LL + println!("{val:val$.val$}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:99:5
--> $DIR/uninlined_format_args.rs:104:5
|
LL | println!("{:0$}", width);
| ^^^^^^^^^^^^^^^^^^^^^^^^
@ -598,7 +598,7 @@ LL + println!("{width:width$}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:100:5
--> $DIR/uninlined_format_args.rs:105:5
|
LL | println!("{:1$}", local_i32, width);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -610,7 +610,7 @@ LL + println!("{local_i32:width$}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:101:5
--> $DIR/uninlined_format_args.rs:106:5
|
LL | println!("{:w$}", w = width);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -622,7 +622,7 @@ LL + println!("{width:width$}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:102:5
--> $DIR/uninlined_format_args.rs:107:5
|
LL | println!("{:w$}", local_i32, w = width);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -634,7 +634,7 @@ LL + println!("{local_i32:width$}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:103:5
--> $DIR/uninlined_format_args.rs:108:5
|
LL | println!("{:.0$}", prec);
| ^^^^^^^^^^^^^^^^^^^^^^^^
@ -646,7 +646,7 @@ LL + println!("{prec:.prec$}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:104:5
--> $DIR/uninlined_format_args.rs:109:5
|
LL | println!("{:.1$}", local_i32, prec);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -658,7 +658,7 @@ LL + println!("{local_i32:.prec$}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:105:5
--> $DIR/uninlined_format_args.rs:110:5
|
LL | println!("{:.p$}", p = prec);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -670,7 +670,7 @@ LL + println!("{prec:.prec$}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:106:5
--> $DIR/uninlined_format_args.rs:111:5
|
LL | println!("{:.p$}", local_i32, p = prec);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -682,7 +682,7 @@ LL + println!("{local_i32:.prec$}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:107:5
--> $DIR/uninlined_format_args.rs:112:5
|
LL | println!("{:0$.1$}", width, prec);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -694,7 +694,7 @@ LL + println!("{width:width$.prec$}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:108:5
--> $DIR/uninlined_format_args.rs:113:5
|
LL | println!("{:0$.w$}", width, w = prec);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -706,7 +706,7 @@ LL + println!("{width:width$.prec$}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:109:5
--> $DIR/uninlined_format_args.rs:114:5
|
LL | println!("{:1$.2$}", local_f64, width, prec);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -718,7 +718,7 @@ LL + println!("{local_f64:width$.prec$}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:110:5
--> $DIR/uninlined_format_args.rs:115:5
|
LL | println!("{:1$.2$} {0} {1} {2}", local_f64, width, prec);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -730,7 +730,7 @@ LL + println!("{local_f64:width$.prec$} {local_f64} {width} {prec}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:111:5
--> $DIR/uninlined_format_args.rs:116:5
|
LL | / println!(
LL | | "{0:1$.2$} {0:2$.1$} {1:0$.2$} {1:2$.0$} {2:0$.1$} {2:1$.0$}",
@ -739,7 +739,7 @@ LL | | );
| |_____^
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:122:5
--> $DIR/uninlined_format_args.rs:127:5
|
LL | println!("Width = {}, value with width = {:0$}", local_i32, local_f64);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -751,7 +751,7 @@ LL + println!("Width = {local_i32}, value with width = {local_f64:local_i32$
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:123:5
--> $DIR/uninlined_format_args.rs:128:5
|
LL | println!("{:w$.p$}", local_i32, w = width, p = prec);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -763,7 +763,7 @@ LL + println!("{local_i32:width$.prec$}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:124:5
--> $DIR/uninlined_format_args.rs:129:5
|
LL | println!("{:w$.p$}", w = width, p = prec);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -775,7 +775,7 @@ LL + println!("{width:width$.prec$}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:143:5
--> $DIR/uninlined_format_args.rs:148:5
|
LL | / println!(
LL | | "{}",
@ -785,7 +785,7 @@ LL | | );
| |_____^
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:148:5
--> $DIR/uninlined_format_args.rs:153:5
|
LL | println!("{}", /* comment with a comma , in it */ val);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -797,7 +797,7 @@ LL + println!("{val}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:154:9
--> $DIR/uninlined_format_args.rs:159:9
|
LL | panic!("p1 {}", local_i32);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -809,7 +809,7 @@ LL + panic!("p1 {local_i32}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:157:9
--> $DIR/uninlined_format_args.rs:162:9
|
LL | panic!("p2 {0}", local_i32);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -821,7 +821,7 @@ LL + panic!("p2 {local_i32}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:160:9
--> $DIR/uninlined_format_args.rs:165:9
|
LL | panic!("p3 {local_i32}", local_i32 = local_i32);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -833,7 +833,7 @@ LL + panic!("p3 {local_i32}");
|
error: variables can be used directly in the `format!` string
--> $DIR/uninlined_format_args.rs:180:5
--> $DIR/uninlined_format_args.rs:185:5
|
LL | println!("expand='{}'", local_i32);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

1
tests/ui/unnecessary_lazy_eval.fixed
View File

@ -5,6 +5,7 @@
#![allow(clippy::bind_instead_of_map)]
#![allow(clippy::map_identity)]
#![allow(clippy::needless_borrow)]
#![allow(clippy::unnecessary_literal_unwrap)]
use std::ops::Deref;

1
tests/ui/unnecessary_lazy_eval.rs
View File

@ -5,6 +5,7 @@
#![allow(clippy::bind_instead_of_map)]
#![allow(clippy::map_identity)]
#![allow(clippy::needless_borrow)]
#![allow(clippy::unnecessary_literal_unwrap)]
use std::ops::Deref;

76
tests/ui/unnecessary_lazy_eval.stderr
View File

@ -1,5 +1,5 @@
error: unnecessary closure used to substitute value for `Option::None`
--> $DIR/unnecessary_lazy_eval.rs:68:13
--> $DIR/unnecessary_lazy_eval.rs:69:13
|
LL | let _ = opt.unwrap_or_else(|| 2);
| ^^^^--------------------
@ -9,7 +9,7 @@ LL | let _ = opt.unwrap_or_else(|| 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:69:13
--> $DIR/unnecessary_lazy_eval.rs:70:13
|
LL | let _ = opt.unwrap_or_else(|| astronomers_pi);
| ^^^^---------------------------------
@ -17,7 +17,7 @@ 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:70:13
--> $DIR/unnecessary_lazy_eval.rs:71:13
|
LL | let _ = opt.unwrap_or_else(|| ext_str.some_field);
| ^^^^-------------------------------------
@ -25,7 +25,7 @@ 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:72:13
--> $DIR/unnecessary_lazy_eval.rs:73:13
|
LL | let _ = opt.and_then(|_| ext_opt);
| ^^^^---------------------
@ -33,7 +33,7 @@ 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:73:13
--> $DIR/unnecessary_lazy_eval.rs:74:13
|
LL | let _ = opt.or_else(|| ext_opt);
| ^^^^-------------------
@ -41,7 +41,7 @@ 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:74:13
--> $DIR/unnecessary_lazy_eval.rs:75:13
|
LL | let _ = opt.or_else(|| None);
| ^^^^----------------
@ -49,7 +49,7 @@ 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:75:13
--> $DIR/unnecessary_lazy_eval.rs:76:13
|
LL | let _ = opt.get_or_insert_with(|| 2);
| ^^^^------------------------
@ -57,7 +57,7 @@ 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:76:13
--> $DIR/unnecessary_lazy_eval.rs:77:13
|
LL | let _ = opt.ok_or_else(|| 2);
| ^^^^----------------
@ -65,7 +65,7 @@ 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:77:13
--> $DIR/unnecessary_lazy_eval.rs:78:13
|
LL | let _ = nested_tuple_opt.unwrap_or_else(|| Some((1, 2)));
| ^^^^^^^^^^^^^^^^^-------------------------------
@ -73,7 +73,7 @@ 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:78:13
--> $DIR/unnecessary_lazy_eval.rs:79:13
|
LL | let _ = cond.then(|| astronomers_pi);
| ^^^^^-----------------------
@ -81,7 +81,7 @@ 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:82:13
--> $DIR/unnecessary_lazy_eval.rs:83:13
|
LL | let _ = Some(1).unwrap_or_else(|| *r);
| ^^^^^^^^---------------------
@ -89,7 +89,7 @@ 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:84:13
--> $DIR/unnecessary_lazy_eval.rs:85:13
|
LL | let _ = Some(1).unwrap_or_else(|| *b);
| ^^^^^^^^---------------------
@ -97,7 +97,7 @@ 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:86:13
--> $DIR/unnecessary_lazy_eval.rs:87:13
|
LL | let _ = Some(1).as_ref().unwrap_or_else(|| &r);
| ^^^^^^^^^^^^^^^^^---------------------
@ -105,7 +105,7 @@ 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:87:13
--> $DIR/unnecessary_lazy_eval.rs:88:13
|
LL | let _ = Some(1).as_ref().unwrap_or_else(|| &b);
| ^^^^^^^^^^^^^^^^^---------------------
@ -113,7 +113,7 @@ 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:90:13
--> $DIR/unnecessary_lazy_eval.rs:91:13
|
LL | let _ = Some(10).unwrap_or_else(|| 2);
| ^^^^^^^^^--------------------
@ -121,7 +121,7 @@ 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:91:13
--> $DIR/unnecessary_lazy_eval.rs:92:13
|
LL | let _ = Some(10).and_then(|_| ext_opt);
| ^^^^^^^^^---------------------
@ -129,7 +129,7 @@ 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:92:28
--> $DIR/unnecessary_lazy_eval.rs:93:28
|
LL | let _: Option<usize> = None.or_else(|| ext_opt);
| ^^^^^-------------------
@ -137,7 +137,7 @@ 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:93:13
--> $DIR/unnecessary_lazy_eval.rs:94:13
|
LL | let _ = None.get_or_insert_with(|| 2);
| ^^^^^------------------------
@ -145,7 +145,7 @@ 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:94:35
--> $DIR/unnecessary_lazy_eval.rs:95:35
|
LL | let _: Result<usize, usize> = None.ok_or_else(|| 2);
| ^^^^^----------------
@ -153,7 +153,7 @@ 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:95:28
--> $DIR/unnecessary_lazy_eval.rs:96:28
|
LL | let _: Option<usize> = None.or_else(|| None);
| ^^^^^----------------
@ -161,7 +161,7 @@ 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:98:13
--> $DIR/unnecessary_lazy_eval.rs:99:13
|
LL | let _ = deep.0.unwrap_or_else(|| 2);
| ^^^^^^^--------------------
@ -169,7 +169,7 @@ 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:99:13
--> $DIR/unnecessary_lazy_eval.rs:100:13
|
LL | let _ = deep.0.and_then(|_| ext_opt);
| ^^^^^^^---------------------
@ -177,7 +177,7 @@ 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:100:13
--> $DIR/unnecessary_lazy_eval.rs:101:13
|
LL | let _ = deep.0.or_else(|| None);
| ^^^^^^^----------------
@ -185,7 +185,7 @@ 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:101:13
--> $DIR/unnecessary_lazy_eval.rs:102:13
|
LL | let _ = deep.0.get_or_insert_with(|| 2);
| ^^^^^^^------------------------
@ -193,7 +193,7 @@ 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:102:13
--> $DIR/unnecessary_lazy_eval.rs:103:13
|
LL | let _ = deep.0.ok_or_else(|| 2);
| ^^^^^^^----------------
@ -201,7 +201,7 @@ 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:132:28
--> $DIR/unnecessary_lazy_eval.rs:133:28
|
LL | let _: Option<usize> = None.or_else(|| Some(3));
| ^^^^^-------------------
@ -209,7 +209,7 @@ 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:133:13
--> $DIR/unnecessary_lazy_eval.rs:134:13
|
LL | let _ = deep.0.or_else(|| Some(3));
| ^^^^^^^-------------------
@ -217,7 +217,7 @@ 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:134:13
--> $DIR/unnecessary_lazy_eval.rs:135:13
|
LL | let _ = opt.or_else(|| Some(3));
| ^^^^-------------------
@ -225,7 +225,7 @@ 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:140:13
--> $DIR/unnecessary_lazy_eval.rs:141:13
|
LL | let _ = res2.unwrap_or_else(|_| 2);
| ^^^^^---------------------
@ -233,7 +233,7 @@ 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:141:13
--> $DIR/unnecessary_lazy_eval.rs:142:13
|
LL | let _ = res2.unwrap_or_else(|_| astronomers_pi);
| ^^^^^----------------------------------
@ -241,7 +241,7 @@ 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:142:13
--> $DIR/unnecessary_lazy_eval.rs:143:13
|
LL | let _ = res2.unwrap_or_else(|_| ext_str.some_field);
| ^^^^^--------------------------------------
@ -249,7 +249,7 @@ 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:164:35
--> $DIR/unnecessary_lazy_eval.rs:165:35
|
LL | let _: Result<usize, usize> = res.and_then(|_| Err(2));
| ^^^^--------------------
@ -257,7 +257,7 @@ 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:165:35
--> $DIR/unnecessary_lazy_eval.rs:166:35
|
LL | let _: Result<usize, usize> = res.and_then(|_| Err(astronomers_pi));
| ^^^^---------------------------------
@ -265,7 +265,7 @@ 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:166:35
--> $DIR/unnecessary_lazy_eval.rs:167:35
|
LL | let _: Result<usize, usize> = res.and_then(|_| Err(ext_str.some_field));
| ^^^^-------------------------------------
@ -273,7 +273,7 @@ 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:168:35
--> $DIR/unnecessary_lazy_eval.rs:169:35
|
LL | let _: Result<usize, usize> = res.or_else(|_| Ok(2));
| ^^^^------------------
@ -281,7 +281,7 @@ 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:169:35
--> $DIR/unnecessary_lazy_eval.rs:170:35
|
LL | let _: Result<usize, usize> = res.or_else(|_| Ok(astronomers_pi));
| ^^^^-------------------------------
@ -289,7 +289,7 @@ 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:170:35
--> $DIR/unnecessary_lazy_eval.rs:171:35
|
LL | let _: Result<usize, usize> = res.or_else(|_| Ok(ext_str.some_field));
| ^^^^-----------------------------------
@ -297,7 +297,7 @@ 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:171:35
--> $DIR/unnecessary_lazy_eval.rs:172:35
|
LL | let _: Result<usize, usize> = res.
| ___________________________________^

1
tests/ui/unnecessary_lazy_eval_unfixable.rs
View File

@ -1,4 +1,5 @@
#![warn(clippy::unnecessary_lazy_evaluations)]
#![allow(clippy::unnecessary_literal_unwrap)]
struct Deep(Option<usize>);

6
tests/ui/unnecessary_lazy_eval_unfixable.stderr
View File

@ -1,5 +1,5 @@
error: unnecessary closure used to substitute value for `Result::Err`
--> $DIR/unnecessary_lazy_eval_unfixable.rs:12:13
--> $DIR/unnecessary_lazy_eval_unfixable.rs:13:13
|
LL | let _ = Ok(1).unwrap_or_else(|()| 2);
| ^^^^^^----------------------
@ -9,7 +9,7 @@ LL | let _ = Ok(1).unwrap_or_else(|()| 2);
= note: `-D clippy::unnecessary-lazy-evaluations` implied by `-D warnings`
error: unnecessary closure used to substitute value for `Result::Err`
--> $DIR/unnecessary_lazy_eval_unfixable.rs:16:13
--> $DIR/unnecessary_lazy_eval_unfixable.rs:17:13
|
LL | let _ = Ok(1).unwrap_or_else(|e::E| 2);
| ^^^^^^------------------------
@ -17,7 +17,7 @@ LL | let _ = Ok(1).unwrap_or_else(|e::E| 2);
| help: use `unwrap_or(..)` instead: `unwrap_or(2)`
error: unnecessary closure used to substitute value for `Result::Err`
--> $DIR/unnecessary_lazy_eval_unfixable.rs:17:13
--> $DIR/unnecessary_lazy_eval_unfixable.rs:18:13
|
LL | let _ = Ok(1).unwrap_or_else(|SomeStruct { .. }| 2);
| ^^^^^^-------------------------------------

78
tests/ui/unnecessary_literal_unwrap.fixed Normal file
View File

@ -0,0 +1,78 @@
//@run-rustfix
#![warn(clippy::unnecessary_literal_unwrap)]
#![allow(unreachable_code)]
#![allow(
clippy::unnecessary_lazy_evaluations,
clippy::diverging_sub_expression,
clippy::let_unit_value,
clippy::no_effect
)]
fn unwrap_option_some() {
let _val = 1;
let _val = 1;
1;
1;
}
fn unwrap_option_none() {
let _val = panic!();
let _val = panic!("this always happens");
panic!();
panic!("this always happens");
}
fn unwrap_result_ok() {
let _val = 1;
let _val = 1;
let _val = panic!("{:?}", 1);
let _val = panic!("{1}: {:?}", 1, "this always happens");
1;
1;
panic!("{:?}", 1);
panic!("{1}: {:?}", 1, "this always happens");
}
fn unwrap_result_err() {
let _val = 1;
let _val = 1;
let _val = panic!("{:?}", 1);
let _val = panic!("{1}: {:?}", 1, "this always happens");
1;
1;
panic!("{:?}", 1);
panic!("{1}: {:?}", 1, "this always happens");
}
fn unwrap_methods_option() {
let _val = 1;
let _val = 1;
let _val = 1;
1;
1;
1;
}
fn unwrap_methods_result() {
let _val = 1;
let _val = 1;
let _val = 1;
1;
1;
1;
}
fn main() {
unwrap_option_some();
unwrap_option_none();
unwrap_result_ok();
unwrap_result_err();
unwrap_methods_option();
unwrap_methods_result();
}

78
tests/ui/unnecessary_literal_unwrap.rs Normal file
View File

@ -0,0 +1,78 @@
//@run-rustfix
#![warn(clippy::unnecessary_literal_unwrap)]
#![allow(unreachable_code)]
#![allow(
clippy::unnecessary_lazy_evaluations,
clippy::diverging_sub_expression,
clippy::let_unit_value,
clippy::no_effect
)]
fn unwrap_option_some() {
let _val = Some(1).unwrap();
let _val = Some(1).expect("this never happens");
Some(1).unwrap();
Some(1).expect("this never happens");
}
fn unwrap_option_none() {
let _val = None::<()>.unwrap();
let _val = None::<()>.expect("this always happens");
None::<()>.unwrap();
None::<()>.expect("this always happens");
}
fn unwrap_result_ok() {
let _val = Ok::<_, ()>(1).unwrap();
let _val = Ok::<_, ()>(1).expect("this never happens");
let _val = Ok::<_, ()>(1).unwrap_err();
let _val = Ok::<_, ()>(1).expect_err("this always happens");
Ok::<_, ()>(1).unwrap();
Ok::<_, ()>(1).expect("this never happens");
Ok::<_, ()>(1).unwrap_err();
Ok::<_, ()>(1).expect_err("this always happens");
}
fn unwrap_result_err() {
let _val = Err::<(), _>(1).unwrap_err();
let _val = Err::<(), _>(1).expect_err("this never happens");
let _val = Err::<(), _>(1).unwrap();
let _val = Err::<(), _>(1).expect("this always happens");
Err::<(), _>(1).unwrap_err();
Err::<(), _>(1).expect_err("this never happens");
Err::<(), _>(1).unwrap();
Err::<(), _>(1).expect("this always happens");
}
fn unwrap_methods_option() {
let _val = Some(1).unwrap_or(2);
let _val = Some(1).unwrap_or_default();
let _val = Some(1).unwrap_or_else(|| 2);
Some(1).unwrap_or(2);
Some(1).unwrap_or_default();
Some(1).unwrap_or_else(|| 2);
}
fn unwrap_methods_result() {
let _val = Ok::<_, ()>(1).unwrap_or(2);
let _val = Ok::<_, ()>(1).unwrap_or_default();
let _val = Ok::<_, ()>(1).unwrap_or_else(|_| 2);
Ok::<_, ()>(1).unwrap_or(2);
Ok::<_, ()>(1).unwrap_or_default();
Ok::<_, ()>(1).unwrap_or_else(|_| 2);
}
fn main() {
unwrap_option_some();
unwrap_option_none();
unwrap_result_ok();
unwrap_result_err();
unwrap_methods_option();
unwrap_methods_result();
}

413
tests/ui/unnecessary_literal_unwrap.stderr Normal file
View File

@ -0,0 +1,413 @@
error: used `unwrap()` on `Some` value
--> $DIR/unnecessary_literal_unwrap.rs:12:16
|
LL | let _val = Some(1).unwrap();
| ^^^^^^^^^^^^^^^^
|
= note: `-D clippy::unnecessary-literal-unwrap` implied by `-D warnings`
help: remove the `Some` and `unwrap()`
|
LL - let _val = Some(1).unwrap();
LL + let _val = 1;
|
error: used `expect()` on `Some` value
--> $DIR/unnecessary_literal_unwrap.rs:13:16
|
LL | let _val = Some(1).expect("this never happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Some` and `expect()`
|
LL - let _val = Some(1).expect("this never happens");
LL + let _val = 1;
|
error: used `unwrap()` on `Some` value
--> $DIR/unnecessary_literal_unwrap.rs:15:5
|
LL | Some(1).unwrap();
| ^^^^^^^^^^^^^^^^
|
help: remove the `Some` and `unwrap()`
|
LL - Some(1).unwrap();
LL + 1;
|
error: used `expect()` on `Some` value
--> $DIR/unnecessary_literal_unwrap.rs:16:5
|
LL | Some(1).expect("this never happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Some` and `expect()`
|
LL - Some(1).expect("this never happens");
LL + 1;
|
error: used `unwrap()` on `None` value
--> $DIR/unnecessary_literal_unwrap.rs:20:16
|
LL | let _val = None::<()>.unwrap();
| ^^^^^^^^^^^^^^^^^^^ help: remove the `None` and `unwrap()`: `panic!()`
error: used `expect()` on `None` value
--> $DIR/unnecessary_literal_unwrap.rs:21:16
|
LL | let _val = None::<()>.expect("this always happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `None` and `expect()`
|
LL | let _val = panic!("this always happens");
| ~~~~~~~ ~
error: used `unwrap()` on `None` value
--> $DIR/unnecessary_literal_unwrap.rs:23:5
|
LL | None::<()>.unwrap();
| ^^^^^^^^^^^^^^^^^^^ help: remove the `None` and `unwrap()`: `panic!()`
error: used `expect()` on `None` value
--> $DIR/unnecessary_literal_unwrap.rs:24:5
|
LL | None::<()>.expect("this always happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `None` and `expect()`
|
LL | panic!("this always happens");
| ~~~~~~~ ~
error: used `unwrap()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap.rs:28:16
|
LL | let _val = Ok::<_, ()>(1).unwrap();
| ^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `unwrap()`
|
LL - let _val = Ok::<_, ()>(1).unwrap();
LL + let _val = 1;
|
error: used `expect()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap.rs:29:16
|
LL | let _val = Ok::<_, ()>(1).expect("this never happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `expect()`
|
LL - let _val = Ok::<_, ()>(1).expect("this never happens");
LL + let _val = 1;
|
error: used `unwrap_err()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap.rs:30:16
|
LL | let _val = Ok::<_, ()>(1).unwrap_err();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `unwrap_err()`
|
LL | let _val = panic!("{:?}", 1);
| ~~~~~~~~~~~~~~ ~
error: used `expect_err()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap.rs:31:16
|
LL | let _val = Ok::<_, ()>(1).expect_err("this always happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `expect_err()`
|
LL | let _val = panic!("{1}: {:?}", 1, "this always happens");
| ~~~~~~~~~~~~~~~~~~~ ~
error: used `unwrap()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap.rs:33:5
|
LL | Ok::<_, ()>(1).unwrap();
| ^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `unwrap()`
|
LL - Ok::<_, ()>(1).unwrap();
LL + 1;
|
error: used `expect()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap.rs:34:5
|
LL | Ok::<_, ()>(1).expect("this never happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `expect()`
|
LL - Ok::<_, ()>(1).expect("this never happens");
LL + 1;
|
error: used `unwrap_err()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap.rs:35:5
|
LL | Ok::<_, ()>(1).unwrap_err();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `unwrap_err()`
|
LL | panic!("{:?}", 1);
| ~~~~~~~~~~~~~~ ~
error: used `expect_err()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap.rs:36:5
|
LL | Ok::<_, ()>(1).expect_err("this always happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `expect_err()`
|
LL | panic!("{1}: {:?}", 1, "this always happens");
| ~~~~~~~~~~~~~~~~~~~ ~
error: used `unwrap_err()` on `Err` value
--> $DIR/unnecessary_literal_unwrap.rs:40:16
|
LL | let _val = Err::<(), _>(1).unwrap_err();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Err` and `unwrap_err()`
|
LL - let _val = Err::<(), _>(1).unwrap_err();
LL + let _val = 1;
|
error: used `expect_err()` on `Err` value
--> $DIR/unnecessary_literal_unwrap.rs:41:16
|
LL | let _val = Err::<(), _>(1).expect_err("this never happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Err` and `expect_err()`
|
LL - let _val = Err::<(), _>(1).expect_err("this never happens");
LL + let _val = 1;
|
error: used `unwrap()` on `Err` value
--> $DIR/unnecessary_literal_unwrap.rs:42:16
|
LL | let _val = Err::<(), _>(1).unwrap();
| ^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Err` and `unwrap()`
|
LL | let _val = panic!("{:?}", 1);
| ~~~~~~~~~~~~~~ ~
error: used `expect()` on `Err` value
--> $DIR/unnecessary_literal_unwrap.rs:43:16
|
LL | let _val = Err::<(), _>(1).expect("this always happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Err` and `expect()`
|
LL | let _val = panic!("{1}: {:?}", 1, "this always happens");
| ~~~~~~~~~~~~~~~~~~~ ~
error: used `unwrap_err()` on `Err` value
--> $DIR/unnecessary_literal_unwrap.rs:45:5
|
LL | Err::<(), _>(1).unwrap_err();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Err` and `unwrap_err()`
|
LL - Err::<(), _>(1).unwrap_err();
LL + 1;
|
error: used `expect_err()` on `Err` value
--> $DIR/unnecessary_literal_unwrap.rs:46:5
|
LL | Err::<(), _>(1).expect_err("this never happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Err` and `expect_err()`
|
LL - Err::<(), _>(1).expect_err("this never happens");
LL + 1;
|
error: used `unwrap()` on `Err` value
--> $DIR/unnecessary_literal_unwrap.rs:47:5
|
LL | Err::<(), _>(1).unwrap();
| ^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Err` and `unwrap()`
|
LL | panic!("{:?}", 1);
| ~~~~~~~~~~~~~~ ~
error: used `expect()` on `Err` value
--> $DIR/unnecessary_literal_unwrap.rs:48:5
|
LL | Err::<(), _>(1).expect("this always happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Err` and `expect()`
|
LL | panic!("{1}: {:?}", 1, "this always happens");
| ~~~~~~~~~~~~~~~~~~~ ~
error: used `unwrap_or()` on `Some` value
--> $DIR/unnecessary_literal_unwrap.rs:52:16
|
LL | let _val = Some(1).unwrap_or(2);
| ^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Some` and `unwrap_or()`
|
LL - let _val = Some(1).unwrap_or(2);
LL + let _val = 1;
|
error: used `unwrap_or_default()` on `Some` value
--> $DIR/unnecessary_literal_unwrap.rs:53:16
|
LL | let _val = Some(1).unwrap_or_default();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Some` and `unwrap_or_default()`
|
LL - let _val = Some(1).unwrap_or_default();
LL + let _val = 1;
|
error: used `unwrap_or_else()` on `Some` value
--> $DIR/unnecessary_literal_unwrap.rs:54:16
|
LL | let _val = Some(1).unwrap_or_else(|| 2);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Some` and `unwrap_or_else()`
|
LL - let _val = Some(1).unwrap_or_else(|| 2);
LL + let _val = 1;
|
error: used `unwrap_or()` on `Some` value
--> $DIR/unnecessary_literal_unwrap.rs:56:5
|
LL | Some(1).unwrap_or(2);
| ^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Some` and `unwrap_or()`
|
LL - Some(1).unwrap_or(2);
LL + 1;
|
error: used `unwrap_or_default()` on `Some` value
--> $DIR/unnecessary_literal_unwrap.rs:57:5
|
LL | Some(1).unwrap_or_default();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Some` and `unwrap_or_default()`
|
LL - Some(1).unwrap_or_default();
LL + 1;
|
error: used `unwrap_or_else()` on `Some` value
--> $DIR/unnecessary_literal_unwrap.rs:58:5
|
LL | Some(1).unwrap_or_else(|| 2);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Some` and `unwrap_or_else()`
|
LL - Some(1).unwrap_or_else(|| 2);
LL + 1;
|
error: used `unwrap_or()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap.rs:62:16
|
LL | let _val = Ok::<_, ()>(1).unwrap_or(2);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `unwrap_or()`
|
LL - let _val = Ok::<_, ()>(1).unwrap_or(2);
LL + let _val = 1;
|
error: used `unwrap_or_default()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap.rs:63:16
|
LL | let _val = Ok::<_, ()>(1).unwrap_or_default();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `unwrap_or_default()`
|
LL - let _val = Ok::<_, ()>(1).unwrap_or_default();
LL + let _val = 1;
|
error: used `unwrap_or_else()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap.rs:64:16
|
LL | let _val = Ok::<_, ()>(1).unwrap_or_else(|_| 2);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `unwrap_or_else()`
|
LL - let _val = Ok::<_, ()>(1).unwrap_or_else(|_| 2);
LL + let _val = 1;
|
error: used `unwrap_or()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap.rs:66:5
|
LL | Ok::<_, ()>(1).unwrap_or(2);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `unwrap_or()`
|
LL - Ok::<_, ()>(1).unwrap_or(2);
LL + 1;
|
error: used `unwrap_or_default()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap.rs:67:5
|
LL | Ok::<_, ()>(1).unwrap_or_default();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `unwrap_or_default()`
|
LL - Ok::<_, ()>(1).unwrap_or_default();
LL + 1;
|
error: used `unwrap_or_else()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap.rs:68:5
|
LL | Ok::<_, ()>(1).unwrap_or_else(|_| 2);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `unwrap_or_else()`
|
LL - Ok::<_, ()>(1).unwrap_or_else(|_| 2);
LL + 1;
|
error: aborting due to 36 previous errors

116
tests/ui/unnecessary_literal_unwrap_unfixable.rs Normal file
View File

@ -0,0 +1,116 @@
#![warn(clippy::unnecessary_literal_unwrap)]
#![allow(unreachable_code)]
#![allow(clippy::unnecessary_lazy_evaluations, clippy::let_unit_value)]
fn unwrap_option_some() {
let val = Some(1);
let _val2 = val.unwrap();
let _val2 = val.expect("this never happens");
}
fn unwrap_option_some_context() {
let _val = Some::<usize>([1, 2, 3].iter().sum()).unwrap();
let _val = Some::<usize>([1, 2, 3].iter().sum()).expect("this never happens");
let val = Some::<usize>([1, 2, 3].iter().sum());
let _val2 = val.unwrap();
let _val2 = val.expect("this never happens");
}
fn unwrap_option_none() {
let val = None::<()>;
let _val2 = val.unwrap();
let _val2 = val.expect("this always happens");
}
fn unwrap_result_ok() {
let val = Ok::<_, ()>(1);
let _val2 = val.unwrap();
let _val2 = val.expect("this never happens");
let _val2 = val.unwrap_err();
let _val2 = val.expect_err("this always happens");
}
fn unwrap_result_ok_context() {
let _val = Ok::<usize, ()>([1, 2, 3].iter().sum()).unwrap();
let _val = Ok::<usize, ()>([1, 2, 3].iter().sum()).expect("this never happens");
let _val = Ok::<usize, ()>([1, 2, 3].iter().sum()).unwrap_err();
let _val = Ok::<usize, ()>([1, 2, 3].iter().sum()).expect_err("this always happens");
let val = Ok::<usize, ()>([1, 2, 3].iter().sum());
let _val2 = val.unwrap();
let _val2 = val.expect("this never happens");
let _val2 = val.unwrap_err();
let _val2 = val.expect_err("this always happens");
}
fn unwrap_result_err() {
let val = Err::<(), _>(1);
let _val2 = val.unwrap_err();
let _val2 = val.expect_err("this never happens");
let _val2 = val.unwrap();
let _val2 = val.expect("this always happens");
}
fn unwrap_result_err_context() {
let _val = Err::<(), usize>([1, 2, 3].iter().sum()).unwrap_err();
let _val = Err::<(), usize>([1, 2, 3].iter().sum()).expect_err("this never happens");
let _val = Err::<(), usize>([1, 2, 3].iter().sum()).unwrap();
let _val = Err::<(), usize>([1, 2, 3].iter().sum()).expect("this always happens");
let val = Err::<(), usize>([1, 2, 3].iter().sum());
let _val2 = val.unwrap_err();
let _val2 = val.expect_err("this never happens");
let _val2 = val.unwrap();
let _val2 = val.expect("this always happens");
}
fn unwrap_methods_option() {
let val = Some(1);
let _val2 = val.unwrap_or(2);
let _val2 = val.unwrap_or_default();
let _val2 = val.unwrap_or_else(|| 2);
}
fn unwrap_methods_option_context() {
let _val = Some::<usize>([1, 2, 3].iter().sum()).unwrap_or(2);
let _val = Some::<usize>([1, 2, 3].iter().sum()).unwrap_or_default();
let _val = Some::<usize>([1, 2, 3].iter().sum()).unwrap_or_else(|| 2);
let val = Some::<usize>([1, 2, 3].iter().sum());
let _val2 = val.unwrap_or(2);
let _val2 = val.unwrap_or_default();
let _val2 = val.unwrap_or_else(|| 2);
}
fn unwrap_methods_result() {
let val = Ok::<_, ()>(1);
let _val2 = val.unwrap_or(2);
let _val2 = val.unwrap_or_default();
let _val2 = val.unwrap_or_else(|_| 2);
}
fn unwrap_methods_result_context() {
let _val = Ok::<usize, ()>([1, 2, 3].iter().sum()).unwrap_or(2);
let _val = Ok::<usize, ()>([1, 2, 3].iter().sum()).unwrap_or_default();
let _val = Ok::<usize, ()>([1, 2, 3].iter().sum()).unwrap_or_else(|_| 2);
let val = Ok::<usize, ()>([1, 2, 3].iter().sum());
let _val2 = val.unwrap_or(2);
let _val2 = val.unwrap_or_default();
let _val2 = val.unwrap_or_else(|_| 2);
}
fn main() {
unwrap_option_some();
unwrap_option_some_context();
unwrap_option_none();
unwrap_result_ok();
unwrap_result_ok_context();
unwrap_result_err();
unwrap_result_err_context();
unwrap_methods_option();
unwrap_methods_option_context();
unwrap_methods_result();
unwrap_methods_result_context();
}

603
tests/ui/unnecessary_literal_unwrap_unfixable.stderr Normal file
View File

@ -0,0 +1,603 @@
error: used `unwrap()` on `Some` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:7:17
|
LL | let _val2 = val.unwrap();
| ^^^^^^^^^^^^
|
help: remove the `Some` and `unwrap()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:6:15
|
LL | let val = Some(1);
| ^^^^^^^
= note: `-D clippy::unnecessary-literal-unwrap` implied by `-D warnings`
error: used `expect()` on `Some` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:8:17
|
LL | let _val2 = val.expect("this never happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Some` and `expect()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:6:15
|
LL | let val = Some(1);
| ^^^^^^^
error: used `unwrap()` on `Some` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:12:16
|
LL | let _val = Some::<usize>([1, 2, 3].iter().sum()).unwrap();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Some` and `unwrap()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:12:16
|
LL | let _val = Some::<usize>([1, 2, 3].iter().sum()).unwrap();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: used `expect()` on `Some` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:13:16
|
LL | let _val = Some::<usize>([1, 2, 3].iter().sum()).expect("this never happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Some` and `expect()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:13:16
|
LL | let _val = Some::<usize>([1, 2, 3].iter().sum()).expect("this never happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: used `unwrap()` on `Some` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:16:17
|
LL | let _val2 = val.unwrap();
| ^^^^^^^^^^^^
|
help: remove the `Some` and `unwrap()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:15:15
|
LL | let val = Some::<usize>([1, 2, 3].iter().sum());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: used `expect()` on `Some` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:17:17
|
LL | let _val2 = val.expect("this never happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Some` and `expect()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:15:15
|
LL | let val = Some::<usize>([1, 2, 3].iter().sum());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: used `unwrap()` on `None` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:22:17
|
LL | let _val2 = val.unwrap();
| ^^^^^^^^^^^^
|
help: remove the `None` and `unwrap()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:21:15
|
LL | let val = None::<()>;
| ^^^^^^^^^^
error: used `expect()` on `None` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:23:17
|
LL | let _val2 = val.expect("this always happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `None` and `expect()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:21:15
|
LL | let val = None::<()>;
| ^^^^^^^^^^
error: used `unwrap()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:28:17
|
LL | let _val2 = val.unwrap();
| ^^^^^^^^^^^^
|
help: remove the `Ok` and `unwrap()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:27:15
|
LL | let val = Ok::<_, ()>(1);
| ^^^^^^^^^^^^^^
error: used `expect()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:29:17
|
LL | let _val2 = val.expect("this never happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `expect()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:27:15
|
LL | let val = Ok::<_, ()>(1);
| ^^^^^^^^^^^^^^
error: used `unwrap_err()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:30:17
|
LL | let _val2 = val.unwrap_err();
| ^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `unwrap_err()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:27:15
|
LL | let val = Ok::<_, ()>(1);
| ^^^^^^^^^^^^^^
error: used `expect_err()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:31:17
|
LL | let _val2 = val.expect_err("this always happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `expect_err()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:27:15
|
LL | let val = Ok::<_, ()>(1);
| ^^^^^^^^^^^^^^
error: used `unwrap()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:35:16
|
LL | let _val = Ok::<usize, ()>([1, 2, 3].iter().sum()).unwrap();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `unwrap()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:35:16
|
LL | let _val = Ok::<usize, ()>([1, 2, 3].iter().sum()).unwrap();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: used `expect()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:36:16
|
LL | let _val = Ok::<usize, ()>([1, 2, 3].iter().sum()).expect("this never happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `expect()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:36:16
|
LL | let _val = Ok::<usize, ()>([1, 2, 3].iter().sum()).expect("this never happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: used `unwrap_err()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:37:16
|
LL | let _val = Ok::<usize, ()>([1, 2, 3].iter().sum()).unwrap_err();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `unwrap_err()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:37:16
|
LL | let _val = Ok::<usize, ()>([1, 2, 3].iter().sum()).unwrap_err();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: used `expect_err()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:38:16
|
LL | let _val = Ok::<usize, ()>([1, 2, 3].iter().sum()).expect_err("this always happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `expect_err()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:38:16
|
LL | let _val = Ok::<usize, ()>([1, 2, 3].iter().sum()).expect_err("this always happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: used `unwrap()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:41:17
|
LL | let _val2 = val.unwrap();
| ^^^^^^^^^^^^
|
help: remove the `Ok` and `unwrap()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:40:15
|
LL | let val = Ok::<usize, ()>([1, 2, 3].iter().sum());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: used `expect()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:42:17
|
LL | let _val2 = val.expect("this never happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `expect()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:40:15
|
LL | let val = Ok::<usize, ()>([1, 2, 3].iter().sum());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: used `unwrap_err()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:43:17
|
LL | let _val2 = val.unwrap_err();
| ^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `unwrap_err()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:40:15
|
LL | let val = Ok::<usize, ()>([1, 2, 3].iter().sum());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: used `expect_err()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:44:17
|
LL | let _val2 = val.expect_err("this always happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `expect_err()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:40:15
|
LL | let val = Ok::<usize, ()>([1, 2, 3].iter().sum());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: used `unwrap_err()` on `Err` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:49:17
|
LL | let _val2 = val.unwrap_err();
| ^^^^^^^^^^^^^^^^
|
help: remove the `Err` and `unwrap_err()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:48:15
|
LL | let val = Err::<(), _>(1);
| ^^^^^^^^^^^^^^^
error: used `expect_err()` on `Err` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:50:17
|
LL | let _val2 = val.expect_err("this never happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Err` and `expect_err()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:48:15
|
LL | let val = Err::<(), _>(1);
| ^^^^^^^^^^^^^^^
error: used `unwrap()` on `Err` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:51:17
|
LL | let _val2 = val.unwrap();
| ^^^^^^^^^^^^
|
help: remove the `Err` and `unwrap()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:48:15
|
LL | let val = Err::<(), _>(1);
| ^^^^^^^^^^^^^^^
error: used `expect()` on `Err` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:52:17
|
LL | let _val2 = val.expect("this always happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Err` and `expect()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:48:15
|
LL | let val = Err::<(), _>(1);
| ^^^^^^^^^^^^^^^
error: used `unwrap_err()` on `Err` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:56:16
|
LL | let _val = Err::<(), usize>([1, 2, 3].iter().sum()).unwrap_err();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Err` and `unwrap_err()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:56:16
|
LL | let _val = Err::<(), usize>([1, 2, 3].iter().sum()).unwrap_err();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: used `expect_err()` on `Err` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:57:16
|
LL | let _val = Err::<(), usize>([1, 2, 3].iter().sum()).expect_err("this never happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Err` and `expect_err()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:57:16
|
LL | let _val = Err::<(), usize>([1, 2, 3].iter().sum()).expect_err("this never happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: used `unwrap()` on `Err` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:58:16
|
LL | let _val = Err::<(), usize>([1, 2, 3].iter().sum()).unwrap();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Err` and `unwrap()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:58:16
|
LL | let _val = Err::<(), usize>([1, 2, 3].iter().sum()).unwrap();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: used `expect()` on `Err` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:59:16
|
LL | let _val = Err::<(), usize>([1, 2, 3].iter().sum()).expect("this always happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Err` and `expect()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:59:16
|
LL | let _val = Err::<(), usize>([1, 2, 3].iter().sum()).expect("this always happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: used `unwrap_err()` on `Err` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:62:17
|
LL | let _val2 = val.unwrap_err();
| ^^^^^^^^^^^^^^^^
|
help: remove the `Err` and `unwrap_err()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:61:15
|
LL | let val = Err::<(), usize>([1, 2, 3].iter().sum());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: used `expect_err()` on `Err` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:63:17
|
LL | let _val2 = val.expect_err("this never happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Err` and `expect_err()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:61:15
|
LL | let val = Err::<(), usize>([1, 2, 3].iter().sum());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: used `unwrap()` on `Err` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:64:17
|
LL | let _val2 = val.unwrap();
| ^^^^^^^^^^^^
|
help: remove the `Err` and `unwrap()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:61:15
|
LL | let val = Err::<(), usize>([1, 2, 3].iter().sum());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: used `expect()` on `Err` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:65:17
|
LL | let _val2 = val.expect("this always happens");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Err` and `expect()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:61:15
|
LL | let val = Err::<(), usize>([1, 2, 3].iter().sum());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: used `unwrap_or()` on `Some` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:70:17
|
LL | let _val2 = val.unwrap_or(2);
| ^^^^^^^^^^^^^^^^
|
help: remove the `Some` and `unwrap_or()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:69:15
|
LL | let val = Some(1);
| ^^^^^^^
error: used `unwrap_or_default()` on `Some` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:71:17
|
LL | let _val2 = val.unwrap_or_default();
| ^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Some` and `unwrap_or_default()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:69:15
|
LL | let val = Some(1);
| ^^^^^^^
error: used `unwrap_or_else()` on `Some` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:72:17
|
LL | let _val2 = val.unwrap_or_else(|| 2);
| ^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Some` and `unwrap_or_else()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:69:15
|
LL | let val = Some(1);
| ^^^^^^^
error: used `unwrap_or()` on `Some` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:76:16
|
LL | let _val = Some::<usize>([1, 2, 3].iter().sum()).unwrap_or(2);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Some` and `unwrap_or()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:76:16
|
LL | let _val = Some::<usize>([1, 2, 3].iter().sum()).unwrap_or(2);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: used `unwrap_or_default()` on `Some` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:77:16
|
LL | let _val = Some::<usize>([1, 2, 3].iter().sum()).unwrap_or_default();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Some` and `unwrap_or_default()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:77:16
|
LL | let _val = Some::<usize>([1, 2, 3].iter().sum()).unwrap_or_default();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: used `unwrap_or_else()` on `Some` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:78:16
|
LL | let _val = Some::<usize>([1, 2, 3].iter().sum()).unwrap_or_else(|| 2);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Some` and `unwrap_or_else()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:78:16
|
LL | let _val = Some::<usize>([1, 2, 3].iter().sum()).unwrap_or_else(|| 2);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: used `unwrap_or()` on `Some` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:81:17
|
LL | let _val2 = val.unwrap_or(2);
| ^^^^^^^^^^^^^^^^
|
help: remove the `Some` and `unwrap_or()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:80:15
|
LL | let val = Some::<usize>([1, 2, 3].iter().sum());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: used `unwrap_or_default()` on `Some` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:82:17
|
LL | let _val2 = val.unwrap_or_default();
| ^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Some` and `unwrap_or_default()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:80:15
|
LL | let val = Some::<usize>([1, 2, 3].iter().sum());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: used `unwrap_or_else()` on `Some` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:83:17
|
LL | let _val2 = val.unwrap_or_else(|| 2);
| ^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Some` and `unwrap_or_else()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:80:15
|
LL | let val = Some::<usize>([1, 2, 3].iter().sum());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: used `unwrap_or()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:88:17
|
LL | let _val2 = val.unwrap_or(2);
| ^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `unwrap_or()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:87:15
|
LL | let val = Ok::<_, ()>(1);
| ^^^^^^^^^^^^^^
error: used `unwrap_or_default()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:89:17
|
LL | let _val2 = val.unwrap_or_default();
| ^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `unwrap_or_default()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:87:15
|
LL | let val = Ok::<_, ()>(1);
| ^^^^^^^^^^^^^^
error: used `unwrap_or_else()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:90:17
|
LL | let _val2 = val.unwrap_or_else(|_| 2);
| ^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `unwrap_or_else()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:87:15
|
LL | let val = Ok::<_, ()>(1);
| ^^^^^^^^^^^^^^
error: used `unwrap_or()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:94:16
|
LL | let _val = Ok::<usize, ()>([1, 2, 3].iter().sum()).unwrap_or(2);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `unwrap_or()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:94:16
|
LL | let _val = Ok::<usize, ()>([1, 2, 3].iter().sum()).unwrap_or(2);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: used `unwrap_or_default()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:95:16
|
LL | let _val = Ok::<usize, ()>([1, 2, 3].iter().sum()).unwrap_or_default();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `unwrap_or_default()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:95:16
|
LL | let _val = Ok::<usize, ()>([1, 2, 3].iter().sum()).unwrap_or_default();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: used `unwrap_or_else()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:96:16
|
LL | let _val = Ok::<usize, ()>([1, 2, 3].iter().sum()).unwrap_or_else(|_| 2);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `unwrap_or_else()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:96:16
|
LL | let _val = Ok::<usize, ()>([1, 2, 3].iter().sum()).unwrap_or_else(|_| 2);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: used `unwrap_or()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:99:17
|
LL | let _val2 = val.unwrap_or(2);
| ^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `unwrap_or()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:98:15
|
LL | let val = Ok::<usize, ()>([1, 2, 3].iter().sum());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: used `unwrap_or_default()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:100:17
|
LL | let _val2 = val.unwrap_or_default();
| ^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `unwrap_or_default()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:98:15
|
LL | let val = Ok::<usize, ()>([1, 2, 3].iter().sum());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: used `unwrap_or_else()` on `Ok` value
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:101:17
|
LL | let _val2 = val.unwrap_or_else(|_| 2);
| ^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove the `Ok` and `unwrap_or_else()`
--> $DIR/unnecessary_literal_unwrap_unfixable.rs:98:15
|
LL | let val = Ok::<usize, ()>([1, 2, 3].iter().sum());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: aborting due to 50 previous errors

1
tests/ui/unwrap.rs
View File

@ -1,4 +1,5 @@
#![warn(clippy::unwrap_used)]
#![allow(clippy::unnecessary_literal_unwrap)]
fn unwrap_option() {
let opt = Some(0);

6
tests/ui/unwrap.stderr
View File

@ -1,5 +1,5 @@
error: used `unwrap()` on an `Option` value
--> $DIR/unwrap.rs:5:13
--> $DIR/unwrap.rs:6:13
|
LL | let _ = opt.unwrap();
| ^^^^^^^^^^^^
@ -8,7 +8,7 @@ LL | let _ = opt.unwrap();
= note: `-D clippy::unwrap-used` implied by `-D warnings`
error: used `unwrap()` on a `Result` value
--> $DIR/unwrap.rs:10:13
--> $DIR/unwrap.rs:11:13
|
LL | let _ = res.unwrap();
| ^^^^^^^^^^^^
@ -16,7 +16,7 @@ LL | let _ = res.unwrap();
= help: if you don't want to handle the `Err` case gracefully, consider using `expect()` to provide a better panic message
error: used `unwrap_err()` on a `Result` value
--> $DIR/unwrap.rs:11:13
--> $DIR/unwrap.rs:12:13
|
LL | let _ = res.unwrap_err();
| ^^^^^^^^^^^^^^^^

1
tests/ui/unwrap_expect_used.rs
View File

@ -1,4 +1,5 @@
#![warn(clippy::unwrap_used, clippy::expect_used)]
#![allow(clippy::unnecessary_literal_unwrap)]
trait OptionExt {
type Item;

12
tests/ui/unwrap_expect_used.stderr
View File

@ -1,5 +1,5 @@
error: used `unwrap()` on an `Option` value
--> $DIR/unwrap_expect_used.rs:23:5
--> $DIR/unwrap_expect_used.rs:24:5
|
LL | Some(3).unwrap();
| ^^^^^^^^^^^^^^^^
@ -8,7 +8,7 @@ LL | Some(3).unwrap();
= note: `-D clippy::unwrap-used` implied by `-D warnings`
error: used `expect()` on an `Option` value
--> $DIR/unwrap_expect_used.rs:24:5
--> $DIR/unwrap_expect_used.rs:25:5
|
LL | Some(3).expect("Hello world!");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -17,7 +17,7 @@ LL | Some(3).expect("Hello world!");
= note: `-D clippy::expect-used` implied by `-D warnings`
error: used `unwrap()` on a `Result` value
--> $DIR/unwrap_expect_used.rs:31:5
--> $DIR/unwrap_expect_used.rs:32:5
|
LL | a.unwrap();
| ^^^^^^^^^^
@ -25,7 +25,7 @@ LL | a.unwrap();
= help: if this value is an `Err`, it will panic
error: used `expect()` on a `Result` value
--> $DIR/unwrap_expect_used.rs:32:5
--> $DIR/unwrap_expect_used.rs:33:5
|
LL | a.expect("Hello world!");
| ^^^^^^^^^^^^^^^^^^^^^^^^
@ -33,7 +33,7 @@ LL | a.expect("Hello world!");
= help: if this value is an `Err`, it will panic
error: used `unwrap_err()` on a `Result` value
--> $DIR/unwrap_expect_used.rs:33:5
--> $DIR/unwrap_expect_used.rs:34:5
|
LL | a.unwrap_err();
| ^^^^^^^^^^^^^^
@ -41,7 +41,7 @@ LL | a.unwrap_err();
= help: if this value is an `Ok`, it will panic
error: used `expect_err()` on a `Result` value
--> $DIR/unwrap_expect_used.rs:34:5
--> $DIR/unwrap_expect_used.rs:35:5
|
LL | a.expect_err("Hello error!");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^

1
tests/ui/unwrap_or.rs
View File

@ -1,4 +1,5 @@
#![warn(clippy::all, clippy::or_fun_call)]
#![allow(clippy::unnecessary_literal_unwrap)]
fn main() {
let s = Some(String::from("test string")).unwrap_or("Fail".to_string()).len();

4
tests/ui/unwrap_or.stderr
View File

@ -1,5 +1,5 @@
error: use of `unwrap_or` followed by a function call
--> $DIR/unwrap_or.rs:4:47
--> $DIR/unwrap_or.rs:5:47
|
LL | let s = Some(String::from("test string")).unwrap_or("Fail".to_string()).len();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| "Fail".to_string())`
@ -7,7 +7,7 @@ LL | let s = Some(String::from("test string")).unwrap_or("Fail".to_string())
= note: `-D clippy::or-fun-call` implied by `-D warnings`
error: use of `unwrap_or` followed by a function call
--> $DIR/unwrap_or.rs:8:47
--> $DIR/unwrap_or.rs:9:47
|
LL | let s = Some(String::from("test string")).unwrap_or("Fail".to_string()).len();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| "Fail".to_string())`

2
tests/ui/unwrap_or_else_default.fixed
View File

@ -2,7 +2,7 @@
#![warn(clippy::unwrap_or_else_default)]
#![allow(dead_code)]
#![allow(clippy::unnecessary_wraps)]
#![allow(clippy::unnecessary_wraps, clippy::unnecessary_literal_unwrap)]
/// Checks implementation of the `UNWRAP_OR_ELSE_DEFAULT` lint.
fn unwrap_or_else_default() {

2
tests/ui/unwrap_or_else_default.rs
View File

@ -2,7 +2,7 @@
#![warn(clippy::unwrap_or_else_default)]
#![allow(dead_code)]
#![allow(clippy::unnecessary_wraps)]
#![allow(clippy::unnecessary_wraps, clippy::unnecessary_literal_unwrap)]
/// Checks implementation of the `UNWRAP_OR_ELSE_DEFAULT` lint.
fn unwrap_or_else_default() {