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f434c27067
Additional trait bounds beyond the principal trait and its implications are not possible in the vtable. This means that if a receiver is `&dyn Foo + Send`, the function will only be expecting `&dyn Foo`. This strips those auto traits off before CFI encoding.
23 lines
533 B
Rust
23 lines
533 B
Rust
// Tests that calling a trait object method on a trait object with additional auto traits works.
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//@ needs-sanitizer-cfi
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// FIXME(#122848) Remove only-linux once OSX CFI binaries work
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//@ only-linux
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//@ compile-flags: --crate-type=bin -Cprefer-dynamic=off -Clto -Zsanitizer=cfi
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//@ compile-flags: -C target-feature=-crt-static -C codegen-units=1 -C opt-level=0
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//@ run-pass
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trait Foo {
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fn foo(&self);
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}
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struct Bar;
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impl Foo for Bar {
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fn foo(&self) {}
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}
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pub fn main() {
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let x: &(dyn Foo + Send) = &Bar;
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x.foo();
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}
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