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Mark Rousskov
18 lines
662 B
Rust
18 lines
662 B
Rust
/// An iterator whose items are random accessible efficiently
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///
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/// # Safety
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///
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/// The iterator's .len() and size_hint() must be exact.
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/// `.len()` must be cheap to call.
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///
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/// .get_unchecked() must return distinct mutable references for distinct
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/// indices (if applicable), and must return a valid reference if index is in
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/// 0..self.len().
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#[doc(hidden)]
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pub unsafe trait TrustedRandomAccess : ExactSizeIterator {
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unsafe fn get_unchecked(&mut self, i: usize) -> Self::Item;
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/// Returns `true` if getting an iterator element may have
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/// side effects. Remember to take inner iterators into account.
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fn may_have_side_effect() -> bool;
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}
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