61 lines
1.4 KiB
Rust
61 lines
1.4 KiB
Rust
#![warn(clippy::map_flatten)]
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#![feature(result_flattening)]
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//@no-rustfix
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// issue #8506, multi-line
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#[rustfmt::skip]
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fn long_span() {
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let _: Option<i32> = Some(1)
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.map(|x| {
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//~^ ERROR: called `map(..).flatten()` on `Option`
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//~| NOTE: `-D clippy::map-flatten` implied by `-D warnings`
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if x <= 5 {
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Some(x)
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} else {
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None
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}
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})
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.flatten();
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let _: Result<i32, i32> = Ok(1)
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.map(|x| {
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//~^ ERROR: called `map(..).flatten()` on `Result`
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if x == 1 {
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Ok(x)
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} else {
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Err(0)
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}
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})
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.flatten();
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let result: Result<i32, i32> = Ok(2);
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fn do_something() { }
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let _: Result<i32, i32> = result
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.map(|res| {
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//~^ ERROR: called `map(..).flatten()` on `Result`
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if res > 0 {
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do_something();
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Ok(res)
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} else {
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Err(0)
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}
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})
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.flatten();
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let _: Vec<_> = vec![5_i8; 6]
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.into_iter()
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.map(|some_value| {
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//~^ ERROR: called `map(..).flatten()` on `Iterator`
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if some_value > 3 {
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Some(some_value)
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} else {
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None
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}
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})
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.flatten()
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.collect();
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}
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fn main() {
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long_span();
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}
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