Enum rustc_mir_build::thir::pattern::usefulness::Reachability
source · Expand description
Indicates whether or not a given arm is reachable.
Variants§
Reachable(Vec<Span>)
The arm is reachable. This additionally carries a set of or-pattern branches that have been found to be unreachable despite the overall arm being reachable. Used only in the presence of or-patterns, otherwise it stays empty.
Unreachable
The arm is unreachable.
Trait Implementations§
source§impl Clone for Reachability
impl Clone for Reachability
source§fn clone(&self) -> Reachability
fn clone(&self) -> Reachability
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moreAuto Trait Implementations§
impl RefUnwindSafe for Reachability
impl !Send for Reachability
impl !Sync for Reachability
impl Unpin for Reachability
impl UnwindSafe for Reachability
Blanket Implementations§
Layout§
Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...)
attributes. Please see the Rust Reference’s “Type Layout” chapter for details on type layout guarantees.
Size: 24 bytes
Size for each variant:
Reachable
: 24 bytesUnreachable
: 0 bytes