30 lines
739 B
Rust
30 lines
739 B
Rust
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//@ edition: 2021
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// If the span extractor can't find any relevant spans for a function,
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// but the function contains coverage span-marker statements (e.g. inserted
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// for `if !`), coverage codegen may think that it is instrumented and
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// consequently complain that it has no spans.
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//
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// Regression test for <https://github.com/rust-lang/rust/issues/118850>,
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// "A used function should have had coverage mapping data but did not".
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fn main() {
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affected_function();
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}
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macro_rules! macro_that_defines_a_function {
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(fn $name:ident () $body:tt) => {
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fn $name () $body
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}
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}
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macro_that_defines_a_function! {
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fn affected_function() {
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if !false {
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()
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} else {
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()
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}
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}
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}
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