85 lines
1.6 KiB
Rust
85 lines
1.6 KiB
Rust
trait Foo {
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fn a(&self) -> i32 {
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10
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}
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fn z(&self) -> i32 {
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11
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}
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fn y(&self) -> i32 {
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12
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}
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}
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trait Bar {
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fn b(&self) -> i32 {
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20
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}
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fn w(&self) -> i32 {
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21
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}
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}
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trait Baz {
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fn c(&self) -> i32 {
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30
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}
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}
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impl Foo for i32 {
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fn a(&self) -> i32 {
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100
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}
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}
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impl Bar for i32 {
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fn b(&self) -> i32 {
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200
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}
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}
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impl Baz for i32 {
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fn c(&self) -> i32 {
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300
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}
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}
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fn main() {
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let baz: &dyn Baz = &1;
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let _: &dyn std::fmt::Debug = baz;
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//~^ ERROR mismatched types [E0308]
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let _: &dyn Send = baz;
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//~^ ERROR mismatched types [E0308]
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let _: &dyn Sync = baz;
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//~^ ERROR mismatched types [E0308]
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let bar: &dyn Bar = baz;
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//~^ ERROR mismatched types [E0308]
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let _: &dyn std::fmt::Debug = bar;
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//~^ ERROR mismatched types [E0308]
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let _: &dyn Send = bar;
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//~^ ERROR mismatched types [E0308]
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let _: &dyn Sync = bar;
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//~^ ERROR mismatched types [E0308]
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let foo: &dyn Foo = baz;
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//~^ ERROR mismatched types [E0308]
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let _: &dyn std::fmt::Debug = foo;
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//~^ ERROR mismatched types [E0308]
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let _: &dyn Send = foo;
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//~^ ERROR mismatched types [E0308]
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let _: &dyn Sync = foo;
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//~^ ERROR mismatched types [E0308]
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let foo: &dyn Foo = bar;
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//~^ ERROR mismatched types [E0308]
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let _: &dyn std::fmt::Debug = foo;
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//~^ ERROR mismatched types [E0308]
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let _: &dyn Send = foo;
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//~^ ERROR mismatched types [E0308]
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let _: &dyn Sync = foo;
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//~^ ERROR mismatched types [E0308]
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}
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