mirror of https://github.com/rust-lang/rust
50 lines
1.1 KiB
Rust
50 lines
1.1 KiB
Rust
//@ normalize-stderr-test: "long-type-\d+" -> "long-type-hash"
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// Fixes #110131
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//
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// The issue is that we were constructing an `ImplDerived` cause code for the
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// `&'a T: IntoIterator<Item = &'a u8>` obligation for `Helper::new`, which is
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// incorrect because derived obligations are only expected to come from *traits*.
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struct SeqBuffer<'a, T>
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where
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&'a T: IntoIterator<Item = &'a u8>,
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{
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iter: <&'a T as IntoIterator>::IntoIter,
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}
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struct Helper<'a, T>
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where
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&'a T: IntoIterator<Item = &'a u8>,
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{
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buf: SeqBuffer<'a, T>,
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}
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impl<'a, T> Helper<'a, T>
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where
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&'a T: IntoIterator<Item = &'a u8>,
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{
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fn new(sq: &'a T) -> Self {
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loop {}
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}
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}
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struct BitReaderWrapper<T>(T);
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impl<'a, T> IntoIterator for &'a BitReaderWrapper<T>
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where
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&'a T: IntoIterator<Item = &'a u8>,
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{
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type Item = u32;
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type IntoIter = Helper<'a, T>;
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//~^ ERROR `Helper<'a, T>` is not an iterator
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fn into_iter(self) -> Self::IntoIter {
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Helper::new(&self.0)
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//~^ ERROR overflow evaluating the requirement `&_: IntoIterator`
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}
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}
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fn main() {}
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