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23 lines
625 B
Rust
23 lines
625 B
Rust
// run-pass
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// Regression test for #36053. ICE was caused due to obligations being
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// added to a special, dedicated fulfillment cx during a
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// probe. Problem seems to be related to the particular definition of
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// `FusedIterator` in std but I was not able to isolate that into an
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// external crate.
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use std::iter::FusedIterator;
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struct Thing<'a>(#[allow(unused_tuple_struct_fields)] &'a str);
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impl<'a> Iterator for Thing<'a> {
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type Item = &'a str;
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fn next(&mut self) -> Option<&'a str> {
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None
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}
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}
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impl<'a> FusedIterator for Thing<'a> {}
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fn main() {
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Thing("test").fuse().filter(|_| true).count();
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}
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