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Implement MutNullableJS::or_init.
This will make it easier to implement lazy getters.
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@ -248,6 +248,17 @@ impl<T: Reflectable> MutNullableJS<T> {
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pub unsafe fn get_inner(&self) -> Option<JS<T>> {
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self.ptr.get()
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}
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pub fn or_init(&self, cb: || -> Temporary<T>) -> Temporary<T> {
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match self.get() {
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Some(inner) => inner,
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None => {
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let inner = cb();
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self.assign(Some(inner));
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inner
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},
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}
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}
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}
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impl<T: Reflectable> JS<T> {
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