rust/tests/coverage/macro_in_closure.rs

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#![feature(coverage_attribute)]
// edition: 2021
// If a closure body consists entirely of a single bang-macro invocation, the
// body span ends up inside the macro-expansion, so we need to un-expand it
// back to the declaration site.
static NO_BLOCK: fn() = || println!("hello");
static WITH_BLOCK: fn() = || {
println!("hello");
};
#[coverage(off)]
fn main() {
NO_BLOCK();
WITH_BLOCK();
}