rust/tests/ui/search_is_some.rs

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// aux-build:option_helpers.rs
extern crate option_helpers;
use option_helpers::IteratorFalsePositives;
#[warn(clippy::search_is_some)]
#[rustfmt::skip]
fn main() {
let v = vec![3, 2, 1, 0, -1, -2, -3];
let y = &&42;
// Check `find().is_some()`, multi-line case.
let _ = v.iter().find(|&x| {
*x < 0
}
).is_some();
// Check `position().is_some()`, multi-line case.
let _ = v.iter().position(|&x| {
x < 0
}
).is_some();
// Check `rposition().is_some()`, multi-line case.
let _ = v.iter().rposition(|&x| {
x < 0
}
).is_some();
// Check that we don't lint if the caller is not an `Iterator` or string
let foo = IteratorFalsePositives { foo: 0 };
let _ = foo.find().is_some();
let _ = foo.position().is_some();
let _ = foo.rposition().is_some();
// check that we don't lint if `find()` is called with
// `Pattern` that is not a string
let _ = "hello world".find(|c: char| c == 'o' || c == 'l').is_some();
}