




The macro without-code-coverage prevents generation of code coverage for the forms of body.
body is evaluated as an implicit progn, except that inside body the compiler does not generate code coverage counters, unless force was supplied non-nil to generate-code-coverage or with-code-coverage-generation.
without-code-coverage is useful for error forms that you do not want to be counted.
There will be a counter for the (without-code-coverage ...) form itself. If you do not want this counter, use error-situation-forms instead.
LispWorks User Guide and Reference Manual - 20 Sep 2017