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https://github.com/rust-lang/rust
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22 lines
420 B
Rust
22 lines
420 B
Rust
// Test that changing what a `type` points to does not go unnoticed
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// by the variance analysis.
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//@ incremental
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//@ compile-flags: -Z query-dep-graph
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#![feature(rustc_attrs)]
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#![allow(dead_code)]
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#![allow(unused_variables)]
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fn main() {}
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#[rustc_if_this_changed]
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struct Foo<T> {
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f: T,
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}
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type TypeAlias<T> = Foo<T>;
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#[rustc_then_this_would_need(variances_of)] //~ ERROR OK
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struct Use<T> {
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x: TypeAlias<T>,
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}
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