mirror of https://github.com/rust-lang/rust
35 lines
485 B
Rust
35 lines
485 B
Rust
//@ compile-flags: -Z mir-opt-level=4
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//@ build-pass
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// This used to ICE in const-prop due
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// to an empty ParamEnv being used during normalization
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// of a generic type
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fn main() {
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join_all::<u32>();
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}
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trait Foo {
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type Item;
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}
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impl Foo for u32 {
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type Item = u8;
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}
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trait Bar {
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type Item2;
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}
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impl Bar for u8 {
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type Item2 = u64;
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}
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fn join_all<I>()
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where I: Foo,
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I::Item: Bar
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{
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Vec::<<I::Item as Bar>::Item2>::new(); // ICE occurs processing this line
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}
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