koniifer
33cf8d7209
improve performance of split, chars, chars_ref properly implement lily.iter.Iterator.fold partially implement lily.iter.Iterator.collect fix lily.iter.Skip logic code cleanup write proposed iterator spec
20 lines
594 B
Markdown
20 lines
594 B
Markdown
# iterators
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## spec to-be-defined
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## proposed spec:
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```rust
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.{IterNext, Iterator} := @use("lily").iter
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Iterable := struct {
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// ! required
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// IterNext == struct { finished: bool, val: T }
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next := fn(self: ^Self): IterNext(T)
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into_iter := fn(self: Self): Iterator(Self)
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// ! proposed
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// addition of these two would allow for cheap implementation of `skip`, and `nth` in lily.iter.Iterator
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peek := fn(self: ^Self): IterNext(T)
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advance := fn(self: ^Self, n: uint): IterNext(T)
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// ! proposed (waiting on compiler)
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iter := fn(self: ^Self): Iterator(^Self)
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} |