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55 lines
1.9 KiB
Plaintext
55 lines
1.9 KiB
Plaintext
LL| |#![feature(coverage_attribute)]
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LL| |//@ edition: 2024
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LL| |//@ revisions: base auto on
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LL| |
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LL| |// Tests for how `#[automatically_derived]` affects coverage instrumentation.
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LL| |//
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LL| |// The actual behaviour is an implementation detail, so this test mostly exists
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LL| |// to show when that behaviour has been accidentally or deliberately changed.
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LL| |//
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LL| |// Revision guide:
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LL| |// - base: Test baseline instrumentation behaviour without `#[automatically_derived]`
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LL| |// - auto: Test how `#[automatically_derived]` affects instrumentation
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LL| |// - on: Test interaction between auto-derived and `#[coverage(on)]`
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LL| |
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LL| |struct MyStruct;
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LL| |
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LL| |trait MyTrait {
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LL| | fn my_assoc_fn();
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LL| |}
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LL| |
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LL| |#[cfg_attr(auto, automatically_derived)]
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LL| |#[cfg_attr(on, automatically_derived)]
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LL| |#[cfg_attr(on, coverage(on))]
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LL| |impl MyTrait for MyStruct {
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LL| 1| fn my_assoc_fn() {
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LL| 1| fn inner_fn() {
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LL| 1| say("in inner fn");
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LL| 1| }
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LL| |
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LL| | #[coverage(on)]
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LL| 1| fn inner_fn_on() {
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LL| 1| say("in inner fn (on)");
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LL| 1| }
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LL| |
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LL| 1| let closure = || {
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LL| 1| say("in closure");
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LL| 1| };
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LL| |
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LL| 1| closure();
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LL| 1| inner_fn();
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LL| 1| inner_fn_on();
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LL| 1| }
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LL| |}
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LL| |
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LL| |#[coverage(off)]
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LL| |#[inline(never)]
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LL| |fn say(s: &str) {
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LL| | println!("{s}");
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LL| |}
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LL| |
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LL| 1|fn main() {
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LL| 1| MyStruct::my_assoc_fn();
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LL| 1|}
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