82 lines
1.3 KiB
Rust
82 lines
1.3 KiB
Rust
#![feature(coverage_attribute)]
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//@ edition: 2021
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//@ compile-flags: -Zcoverage-options=branch
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//@ llvm-cov-flags: --show-branches=count
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macro_rules! no_merge {
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() => {
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for _ in 0..1 {}
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};
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}
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fn branch_not(a: bool) {
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no_merge!();
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if a {
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say("a")
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}
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if !a {
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say("not a");
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}
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if !!a {
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say("not not a");
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}
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if !!!a {
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say("not not not a");
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}
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}
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fn branch_not_as(a: bool) {
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no_merge!();
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if !(a as bool) {
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say("not (a as bool)");
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}
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if !!(a as bool) {
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say("not not (a as bool)");
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}
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if !!!(a as bool) {
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say("not not (a as bool)");
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}
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}
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fn branch_and(a: bool, b: bool) {
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no_merge!();
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if a && b {
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say("both");
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} else {
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say("not both");
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}
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}
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fn branch_or(a: bool, b: bool) {
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no_merge!();
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if a || b {
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say("either");
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} else {
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say("neither");
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}
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}
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#[coverage(off)]
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fn say(message: &str) {
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core::hint::black_box(message);
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}
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#[coverage(off)]
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fn main() {
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for a in [false, true, true] {
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branch_not(a);
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branch_not_as(a);
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}
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for a in [false, true, true, true, true] {
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for b in [false, true, true] {
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branch_and(a, b);
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branch_or(a, b);
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}
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}
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}
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