Skip to content

Print TypeId as a u128 for Debug #127134

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Jun 30, 2024
Merged

Print TypeId as a u128 for Debug #127134

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
13 changes: 12 additions & 1 deletion library/core/src/any.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -602,7 +602,7 @@ impl dyn Any + Send + Sync {
/// While `TypeId` implements `Hash`, `PartialOrd`, and `Ord`, it is worth
/// noting that the hashes and ordering will vary between Rust releases. Beware
/// of relying on them inside of your code!
#[derive(Clone, Copy, Debug, Eq, PartialOrd, Ord)]
#[derive(Clone, Copy, Eq, PartialOrd, Ord)]
#[stable(feature = "rust1", since = "1.0.0")]
pub struct TypeId {
// We avoid using `u128` because that imposes higher alignment requirements on many platforms.
Expand Down Expand Up @@ -644,6 +644,10 @@ impl TypeId {
let t2 = t as u64;
TypeId { t: (t1, t2) }
}

fn as_u128(self) -> u128 {
u128::from(self.t.0) << 64 | u128::from(self.t.1)
}
}

#[stable(feature = "rust1", since = "1.0.0")]
Expand All @@ -666,6 +670,13 @@ impl hash::Hash for TypeId {
}
}

#[stable(feature = "rust1", since = "1.0.0")]
impl fmt::Debug for TypeId {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
f.debug_tuple("TypeId").field(&self.as_u128()).finish()
}
}

/// Returns the name of a type as a string slice.
///
/// # Note
Expand Down