70 lines
2.1 KiB
Rust
70 lines
2.1 KiB
Rust
#![warn(clippy::diverging_sub_expression)]
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#![allow(clippy::match_same_arms, clippy::overly_complex_bool_expr)]
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#![allow(clippy::nonminimal_bool)]
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#[allow(clippy::empty_loop)]
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fn diverge() -> ! {
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loop {}
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}
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struct A;
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impl A {
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fn foo(&self) -> ! {
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diverge()
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}
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}
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#[allow(unused_variables, clippy::unnecessary_operation, clippy::short_circuit_statement)]
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fn main() {
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let b = true;
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b || diverge();
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//~^ ERROR: sub-expression diverges
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//~| NOTE: `-D clippy::diverging-sub-expression` implied by `-D warnings`
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b || A.foo();
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//~^ ERROR: sub-expression diverges
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}
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#[allow(dead_code, unused_variables)]
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#[rustfmt::skip]
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fn foobar() {
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loop {
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let x = match 5 {
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4 => return,
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5 => continue,
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6 => true || return,
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//~^ ERROR: sub-expression diverges
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7 => true || continue,
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//~^ ERROR: sub-expression diverges
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8 => break,
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9 => diverge(),
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3 => true || diverge(),
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//~^ ERROR: sub-expression diverges
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10 => match 42 {
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99 => return,
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_ => true || panic!("boo"),
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//~^ ERROR: sub-expression diverges
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},
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// lint blocks as well
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15 => true || { return; },
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//~^ ERROR: sub-expression diverges
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16 => false || { return; },
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//~^ ERROR: sub-expression diverges
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// ... and when it's a single expression
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17 => true || { return },
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//~^ ERROR: sub-expression diverges
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18 => false || { return },
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//~^ ERROR: sub-expression diverges
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// ... but not when there's both an expression and a statement
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19 => true || { _ = 1; return },
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20 => false || { _ = 1; return },
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// ... or multiple statements
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21 => true || { _ = 1; return; },
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22 => false || { _ = 1; return; },
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23 => true || { return; true },
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24 => true || { return; true },
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_ => true || break,
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//~^ ERROR: sub-expression diverges
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};
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}
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}
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