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add a regression test
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// Regression test for #115348.
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unsafe fn uwu() {}
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// Tests that the false-positive warning "unnecessary `unsafe` block"
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// should not be reported, when the error "non-exhaustive patterns"
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// appears.
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fn foo(x: Option<u32>) {
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match x {
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//~^ ERROR non-exhaustive patterns: `None` not covered
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Some(_) => unsafe { uwu() },
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}
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}
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fn main() {}
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error[E0004]: non-exhaustive patterns: `None` not covered
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--> $DIR/issue-115348-false-positive-warning-of-unnecessary-unsafe.rs:10:11
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LL | match x {
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| ^ pattern `None` not covered
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note: `Option<u32>` defined here
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--> $SRC_DIR/core/src/option.rs:LL:COL
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::: $SRC_DIR/core/src/option.rs:LL:COL
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= note: not covered
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= note: the matched value is of type `Option<u32>`
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help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown
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LL ~ Some(_) => unsafe { uwu() },
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LL ~ None => todo!(),
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error: aborting due to previous error
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For more information about this error, try `rustc --explain E0004`.
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