File: off-on-sandwich.coverage

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rustc 1.85.0%2Bdfsg3-1
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   LL|       |#![feature(coverage_attribute)]
   LL|       |//@ edition: 2021
   LL|       |//@ reference: attributes.coverage.nesting
   LL|       |
   LL|       |// Demonstrates the interaction of `#[coverage(off)]` and `#[coverage(on)]`
   LL|       |// in nested functions.
   LL|       |
   LL|       |#[coverage(off)]
   LL|       |fn do_stuff() {}
   LL|       |
   LL|       |#[coverage(off)]
   LL|       |fn dense_a() {
   LL|       |    dense_b();
   LL|       |    dense_b();
   LL|       |    #[coverage(on)]
   LL|      2|    fn dense_b() {
   LL|      2|        dense_c();
   LL|      2|        dense_c();
   LL|       |        #[coverage(off)]
   LL|       |        fn dense_c() {
   LL|       |            do_stuff();
   LL|       |        }
   LL|      2|    }
   LL|       |}
   LL|       |
   LL|       |#[coverage(off)]
   LL|       |fn sparse_a() {
   LL|       |    sparse_b();
   LL|       |    sparse_b();
   LL|       |    fn sparse_b() {
   LL|       |        sparse_c();
   LL|       |        sparse_c();
   LL|       |        #[coverage(on)]
   LL|      4|        fn sparse_c() {
   LL|      4|            sparse_d();
   LL|      4|            sparse_d();
   LL|      8|            fn sparse_d() {
   LL|      8|                sparse_e();
   LL|      8|                sparse_e();
   LL|       |                #[coverage(off)]
   LL|       |                fn sparse_e() {
   LL|       |                    do_stuff();
   LL|       |                }
   LL|      8|            }
   LL|      4|        }
   LL|       |    }
   LL|       |}
   LL|       |
   LL|       |#[coverage(off)]
   LL|       |fn main() {
   LL|       |    dense_a();
   LL|       |    sparse_a();
   LL|       |}