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29 lines
810 B
Rust
29 lines
810 B
Rust
// run-pass
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#![allow(dead_code)]
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// This test case exposes conditions where the encoding of a trait object type
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// with projection predicates would differ between this crate and the upstream
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// crate, because the predicates were encoded in different order within each
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// crate. This led to different symbol hashes of functions using these type,
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// which in turn led to linker errors because the two crates would not agree on
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// the symbol name.
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// The fix was to make the order in which predicates get encoded stable.
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// aux-build:issue-34796-aux.rs
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extern crate issue_34796_aux;
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fn mk<T>() -> T { loop {} }
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struct Data<T, E> {
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data: T,
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error: E,
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}
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fn main() {
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issue_34796_aux::bar(|()| {
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Data::<(), std::io::Error> {
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data: mk(),
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error: mk(),
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}
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})
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}
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