mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-11-11 07:34:18 +00:00
Add test case for clippy::needless_lifetimes in async context
Edition needs to be set to 2018 due to the use of `async`.
This commit is contained in:
Samuel Tardieu
parent
3f84010688
commit
9bcf966e35
2 changed files with 27 additions and 22 deletions
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@ -27,6 +27,11 @@ fn multiple_in_and_out_2<'a, 'b>(x: &'a u8, _y: &'b u8) -> &'a u8 {
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x
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}
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// No error; multiple input refs
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async fn func<'a>(args: &[&'a str]) -> Option<&'a str> {
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args.get(0).cloned()
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}
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// No error; static involved.
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fn in_static_and_out<'a>(x: &'a u8, _y: &'static u8) -> &'a u8 {
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x
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@ -19,133 +19,133 @@ LL | fn in_and_out<'a>(x: &'a u8, _y: u8) -> &'a u8 {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
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--> $DIR/needless_lifetimes.rs:45:1
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--> $DIR/needless_lifetimes.rs:50:1
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LL | fn deep_reference_3<'a>(x: &'a u8, _y: u8) -> Result<&'a u8, ()> {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
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--> $DIR/needless_lifetimes.rs:50:1
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--> $DIR/needless_lifetimes.rs:55:1
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LL | fn where_clause_without_lt<'a, T>(x: &'a u8, _y: u8) -> Result<&'a u8, ()>
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
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--> $DIR/needless_lifetimes.rs:62:1
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--> $DIR/needless_lifetimes.rs:67:1
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LL | fn lifetime_param_2<'a, 'b>(_x: Ref<'a>, _y: &'b u8) {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
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--> $DIR/needless_lifetimes.rs:86:1
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--> $DIR/needless_lifetimes.rs:91:1
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LL | fn fn_bound_2<'a, F, I>(_m: Lt<'a, I>, _f: F) -> Lt<'a, I>
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
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--> $DIR/needless_lifetimes.rs:116:5
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--> $DIR/needless_lifetimes.rs:121:5
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LL | fn self_and_out<'s>(&'s self) -> &'s u8 {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
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--> $DIR/needless_lifetimes.rs:125:5
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--> $DIR/needless_lifetimes.rs:130:5
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LL | fn distinct_self_and_in<'s, 't>(&'s self, _x: &'t u8) {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
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--> $DIR/needless_lifetimes.rs:144:1
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--> $DIR/needless_lifetimes.rs:149:1
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LL | fn struct_with_lt<'a>(_foo: Foo<'a>) -> &'a str {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
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--> $DIR/needless_lifetimes.rs:174:1
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--> $DIR/needless_lifetimes.rs:179:1
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LL | fn trait_obj_elided2<'a>(_arg: &'a dyn Drop) -> &'a str {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
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--> $DIR/needless_lifetimes.rs:180:1
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--> $DIR/needless_lifetimes.rs:185:1
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LL | fn alias_with_lt<'a>(_foo: FooAlias<'a>) -> &'a str {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
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--> $DIR/needless_lifetimes.rs:199:1
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--> $DIR/needless_lifetimes.rs:204:1
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LL | fn named_input_elided_output<'a>(_arg: &'a str) -> &str {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
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--> $DIR/needless_lifetimes.rs:207:1
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--> $DIR/needless_lifetimes.rs:212:1
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LL | fn trait_bound_ok<'a, T: WithLifetime<'static>>(_: &'a u8, _: T) {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
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--> $DIR/needless_lifetimes.rs:243:1
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--> $DIR/needless_lifetimes.rs:248:1
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LL | fn out_return_type_lts<'a>(e: &'a str) -> Cow<'a> {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
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--> $DIR/needless_lifetimes.rs:250:9
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--> $DIR/needless_lifetimes.rs:255:9
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LL | fn needless_lt<'a>(x: &'a u8) {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
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--> $DIR/needless_lifetimes.rs:254:9
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--> $DIR/needless_lifetimes.rs:259:9
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LL | fn needless_lt<'a>(_x: &'a u8) {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
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--> $DIR/needless_lifetimes.rs:267:9
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--> $DIR/needless_lifetimes.rs:272:9
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LL | fn baz<'a>(&'a self) -> impl Foo + 'a {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
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--> $DIR/needless_lifetimes.rs:296:5
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--> $DIR/needless_lifetimes.rs:301:5
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LL | fn impl_trait_elidable_nested_named_lifetimes<'a>(i: &'a i32, f: impl for<'b> Fn(&'b i32) -> &'b i32) -> &'a i32 {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
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--> $DIR/needless_lifetimes.rs:299:5
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--> $DIR/needless_lifetimes.rs:304:5
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LL | fn impl_trait_elidable_nested_anonymous_lifetimes<'a>(i: &'a i32, f: impl Fn(&i32) -> &i32) -> &'a i32 {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
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--> $DIR/needless_lifetimes.rs:308:5
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--> $DIR/needless_lifetimes.rs:313:5
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LL | fn generics_elidable<'a, T: Fn(&i32) -> &i32>(i: &'a i32, f: T) -> &'a i32 {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
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--> $DIR/needless_lifetimes.rs:320:5
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--> $DIR/needless_lifetimes.rs:325:5
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LL | fn where_clause_elidadable<'a, T>(i: &'a i32, f: T) -> &'a i32
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
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--> $DIR/needless_lifetimes.rs:335:5
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--> $DIR/needless_lifetimes.rs:340:5
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LL | fn pointer_fn_elidable<'a>(i: &'a i32, f: fn(&i32) -> &i32) -> &'a i32 {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
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--> $DIR/needless_lifetimes.rs:348:5
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--> $DIR/needless_lifetimes.rs:353:5
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LL | fn nested_fn_pointer_3<'a>(_: &'a i32) -> fn(fn(&i32) -> &i32) -> i32 {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
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--> $DIR/needless_lifetimes.rs:351:5
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--> $DIR/needless_lifetimes.rs:356:5
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LL | fn nested_fn_pointer_4<'a>(_: &'a i32) -> impl Fn(fn(&i32)) {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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