mirror of https://github.com/rust-lang/rust
65 lines
1.6 KiB
Rust
65 lines
1.6 KiB
Rust
//@ compile-flags:-Zprint-mono-items=eager -Zpolymorphize=on -Zinline-mir=no
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#![deny(dead_code)]
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#![feature(start)]
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trait SomeTrait {
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fn foo(&self) { }
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fn bar<T>(&self, x: T) -> T { x }
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}
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impl SomeTrait for i8 {
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// take the default implementations
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// For the non-generic foo(), we should generate a codegen-item even if it
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// is not called anywhere
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//~ MONO_ITEM fn <i8 as SomeTrait>::foo
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}
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trait SomeGenericTrait<T1> {
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fn foo(&self) { }
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fn bar<T2>(&self, x: T1, y: T2) {}
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}
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// Non-generic impl of generic trait
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impl SomeGenericTrait<u64> for i32 {
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// take the default implementations
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// For the non-generic foo(), we should generate a codegen-item even if it
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// is not called anywhere
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//~ MONO_ITEM fn <i32 as SomeGenericTrait<T1>>::foo
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}
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// Non-generic impl of generic trait
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impl<T1> SomeGenericTrait<T1> for u32 {
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// take the default implementations
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// since nothing is monomorphic here, nothing should be generated unless used somewhere.
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}
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//~ MONO_ITEM fn start
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#[start]
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fn start(_: isize, _: *const *const u8) -> isize {
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//~ MONO_ITEM fn <i8 as SomeTrait>::bar::<char>
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let _ = 1i8.bar('c');
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//~ MONO_ITEM fn <i8 as SomeTrait>::bar::<&str>
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let _ = 2i8.bar("&str");
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//~ MONO_ITEM fn <i32 as SomeGenericTrait<u64>>::bar::<char>
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0i32.bar(0u64, 'c');
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//~ MONO_ITEM fn <i32 as SomeGenericTrait<u64>>::bar::<&str>
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0i32.bar(0u64, "&str");
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//~ MONO_ITEM fn <u32 as SomeGenericTrait<i8>>::bar::<&[char; 1]>
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0u32.bar(0i8, &['c']);
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//~ MONO_ITEM fn <u32 as SomeGenericTrait<i16>>::bar::<()>
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0u32.bar(0i16, ());
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0i8.foo();
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0i32.foo();
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0
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}
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