fn is_useful , more skeletons
Specify a lifetime on pattern references
impl PatStack
fill impl Matrix
PatStack::pop_head_constructor
Index-based approach
struct PatCtxt
fields construction fn Fields::wildcards
split wildcard
fn Constructor::is_covered_by_any(..)
fn Matrix::specialize_constructor(..)
impl Usefulness
Initial work on witness construction
Reorganize files
Replace match checking diagnostic
Handle types of expanded patterns
unit match checking go brrr
c3c2893f30