Function gluon_vm::core::optimize::merge_slice_produce2

pub fn merge_slice_produce2<'a, 'b, T, U>(
    allocator: Option<&'a Allocator<'a>>, 
    slice: &'b [U], 
    converter: impl FnMut(&'b U) -> T, 
    action: impl FnMut(&'b U) -> Option<T>
) -> Option<&'a [T]> where
    U: ArenaAllocatable<'b> + 'b,
    T: ArenaAllocatable<'a>,