mirror of https://github.com/rust-lang/rust
29 lines
705 B
Rust
29 lines
705 B
Rust
//@ run-pass
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#![allow(unused_variables)]
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// Test coercions involving DST and/or raw pointers
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//@ pretty-expanded FIXME #23616
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struct S;
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trait T { fn dummy(&self) { } } //~ WARN method `dummy` is never used
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impl T for S {}
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pub fn main() {
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let x: &dyn T = &S;
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// Test we can convert from &-ptr to *-ptr of trait objects
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let x: *const dyn T = &S;
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// Test we can convert from &-ptr to *-ptr of struct pointer (not DST)
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let x: *const S = &S;
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// As above, but mut
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let x: &mut dyn T = &mut S;
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let x: *mut dyn T = &mut S;
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let x: *mut S = &mut S;
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// Test we can change the mutability from mut to const.
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let x: &dyn T = &mut S;
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let x: *const dyn T = &mut S;
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}
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