mirror of https://github.com/rust-lang/rust
27 lines
776 B
Rust
27 lines
776 B
Rust
// Test implicit coercions involving DSTs and raw pointers.
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struct S;
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trait T {}
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impl T for S {}
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struct Foo<T: ?Sized> {
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f: T
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}
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pub fn main() {
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// Test that we cannot convert from *-ptr to &S and &T
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let x: *const S = &S;
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let y: &S = x; //~ ERROR mismatched types
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let y: &dyn T = x; //~ ERROR mismatched types
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// Test that we cannot convert from *-ptr to &S and &T (mut version)
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let x: *mut S = &mut S;
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let y: &S = x; //~ ERROR mismatched types
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let y: &dyn T = x; //~ ERROR mismatched types
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// Test that we cannot convert an immutable ptr to a mutable one using *-ptrs
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let x: &mut dyn T = &S; //~ ERROR mismatched types
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let x: *mut dyn T = &S; //~ ERROR mismatched types
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let x: *mut S = &S; //~ ERROR mismatched types
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}
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