Add Tag::into_u32 method
#1630
Add Tag::into_u32 method
#1630
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Signed-off-by: Nico Burns <nico@nicoburns.com>
dfrg
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dfrg
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LGTM with a couple changes requested.
| Self::from_be_bytes(src.to_be_bytes()) | ||
| } | ||
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| /// Convert a `Tag` into a big-endian `u32` |
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| /// Convert a `Tag` into a big-endian `u32` | |
| /// Convert a `Tag` into a big-endian `u32`. |
| /// | ||
| /// This is provided as a convenience method for interop with code that | ||
| /// stores tags as big-endian u32s. | ||
| pub const fn into_u32(self) -> u32 { |
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I know a conversion consuming self should have an into_ prefix but the vast majority of the methods in this crate use to_ so I'd prefer to_u32 here for consistency.
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Holding off on this until I can determine whether there a consistent byte order used to represent opentype tags as u32. It is looking possible that macOS and Windows both use u32 but with swapped byte order. |
Please add one that reads it as big-endian, like the rest of the most of the font. I think you are right that Windows uses the opposite order. |
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Motivation is exactly the same as the
from_u32method: it allows interop with systems that represent tag in this format (HarfBuzz, CoreText, etc).