diff options
Diffstat (limited to 'src/tools/clippy/tests/ui/result_map_unit_fn_unfixable.rs')
-rw-r--r-- | src/tools/clippy/tests/ui/result_map_unit_fn_unfixable.rs | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/src/tools/clippy/tests/ui/result_map_unit_fn_unfixable.rs b/src/tools/clippy/tests/ui/result_map_unit_fn_unfixable.rs index b197c609d..62798b6d3 100644 --- a/src/tools/clippy/tests/ui/result_map_unit_fn_unfixable.rs +++ b/src/tools/clippy/tests/ui/result_map_unit_fn_unfixable.rs @@ -1,7 +1,7 @@ #![warn(clippy::result_map_unit_fn)] #![feature(never_type)] -#![allow(unused)] - +#![allow(unused, clippy::unnecessary_map_on_constructor)] +//@no-rustfix struct HasResult { field: Result<usize, usize>, } @@ -21,26 +21,33 @@ fn result_map_unit_fn() { let x = HasResult { field: Ok(10) }; x.field.map(|value| { do_nothing(value); do_nothing(value) }); + //~^ ERROR: called `map(f)` on an `Result` value where `f` is a closure that returns t + //~| NOTE: `-D clippy::result-map-unit-fn` implied by `-D warnings` x.field.map(|value| if value > 0 { do_nothing(value); do_nothing(value) }); + //~^ ERROR: called `map(f)` on an `Result` value where `f` is a closure that returns t // Suggestion for the let block should be `{ ... }` as it's too difficult to build a // proper suggestion for these cases x.field.map(|value| { + //~^ ERROR: called `map(f)` on an `Result` value where `f` is a closure that returns t do_nothing(value); do_nothing(value) }); x.field.map(|value| { do_nothing(value); do_nothing(value); }); + //~^ ERROR: called `map(f)` on an `Result` value where `f` is a closure that returns t // The following should suggest `if let Ok(_X) ...` as it's difficult to generate a proper let variable name for them let res: Result<!, usize> = Ok(42).map(diverge); "12".parse::<i32>().map(diverge); + //~^ ERROR: called `map(f)` on an `Result` value where `f` is a function that returns let res: Result<(), usize> = Ok(plus_one(1)).map(do_nothing); // Should suggest `if let Ok(_y) ...` to not override the existing foo variable let y: Result<usize, usize> = Ok(42); y.map(do_nothing); + //~^ ERROR: called `map(f)` on an `Result` value where `f` is a function that returns } fn main() {} |