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Print TypeId as hex for debugging #127179

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Jul 7, 2024
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Print TypeId as hex for debugging #127179

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2 changes: 1 addition & 1 deletion library/core/src/any.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -673,7 +673,7 @@ 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()
write!(f, "TypeId({:#034x})", self.as_u128())
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Shouldn't this be 32 instead of 34?

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@tgross35 tgross35 Jun 30, 2024 •
edited
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The number has to include the leading 0x when used with #. Which always feels pretty weird to me because it pads the number after the 0x, but is apparently correct (e.g. the example in the top post)

}
}

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