coverage_attribute
The tracking issue for this feature is: #84605
The coverage
attribute can be used to selectively disable coverage
instrumentation in an annotated function. This might be useful to:
- Avoid instrumentation overhead in a performance critical function
- Avoid generating coverage for a function that is not meant to be executed, but still target 100% coverage for the rest of the program.
Example
#![allow(unused)] #![feature(coverage_attribute)] fn main() { // `foo()` will get coverage instrumentation (by default) fn foo() { // ... } #[coverage(off)] fn bar() { // ... } }