Struct script::dom::htmlcollection::OptionU32

struct OptionU32 {
    bits: u32,
}

An optional u32, using maxint to represent None. It would be nicer just to use Option for this, but that would produce word alignment issues since Option uses 33 bits.

Fields

bits: u32

Implementations

impl OptionU32

fn to_option(self) -> Option<u32>

fn some(bits: u32) -> OptionU32

fn none() -> OptionU32

Trait Implementations

impl Clone for OptionU32

fn clone(&self) -> OptionU32

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl MallocSizeOf for OptionU32

fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize

Measure the heap usage of all descendant heap-allocated structures, but not the space taken up by the value itself.

impl Traceable for OptionU32

unsafe fn trace(&self, tracer: *mut JSTracer)

Trace self.

impl Copy for OptionU32