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Make Type::of support unsized types #151019

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Merged
rust-bors merged 2 commits into from
Jan 14, 2026
Merged

Make Type::of support unsized types #151019

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b57c249
fix: make `Type::of` supported unsized types
BD103 Jan 12, 2026
1bde2f4
chore: test `Type::of` on unsized types
BD103 Jan 12, 2026
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2 changes: 1 addition & 1 deletion library/core/src/mem/type_info.rs
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Expand Up @@ -31,7 +31,7 @@ impl Type {
#[unstable(feature = "type_info", issue = "146922")]
#[rustc_const_unstable(feature = "type_info", issue = "146922")]
// FIXME(reflection): don't require the 'static bound
pub const fn of<T: 'static>() -> Self {
pub const fn of<T: ?Sized + 'static>() -> Self {
const { TypeId::of::<T>().info() }
}
}
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2 changes: 2 additions & 0 deletions tests/ui/reflection/dump.rs
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Expand Up @@ -27,4 +27,6 @@ fn main() {
println!("{:#?}", const { Type::of::<&Unsized>() }.kind);
println!("{:#?}", const { Type::of::<&str>() }.kind);
println!("{:#?}", const { Type::of::<&[u8]>() }.kind);
println!("{:#?}", const { Type::of::<str>() }.kind);
println!("{:#?}", const { Type::of::<[u8]>() }.kind);
}
2 changes: 2 additions & 0 deletions tests/ui/reflection/dump.run.stdout
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Expand Up @@ -21,3 +21,5 @@ Other
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