27 lines
457 B
Rust
27 lines
457 B
Rust
use {crate::clonecell::CloneCell, std::rc::Rc};
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pub struct Opt<T> {
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t: CloneCell<Option<Rc<T>>>,
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}
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impl<T> Default for Opt<T> {
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fn default() -> Self {
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Self {
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t: Default::default(),
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}
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}
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}
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impl<T> Opt<T> {
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pub fn set(&self, t: Option<Rc<T>>) {
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self.t.set(t);
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}
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pub fn get(&self) -> Option<Rc<T>> {
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self.t.get()
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}
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pub fn is_none(&self) -> bool {
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self.t.is_none()
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}
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}
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