[IFT] track design space intersection size in IntersectionInfo.

[garretrieger]

No description provided.

[cmyr]

looks good.

I'm curious if you're enforcing the invariant that start <= end, for your ranges? And/or have some test coverage for this case?

[garretrieger]

looks good.

I'm curious if you're enforcing the invariant that start <= end, for your ranges? And/or have some test coverage for this case?

Yeah, here: https://github.com/googlefonts/fontations/blob/main/incremental-font-transfer/src/patchmap.rs#L437

Also internally RangeSet ignores attempts to add ranges with start > end so it's not possible to construct one that has bad ranges.

[garretrieger]

looks good.
I'm curious if you're enforcing the invariant that start <= end, for your ranges? And/or have some test coverage for this case?

Yeah, here: https://github.com/googlefonts/fontations/blob/main/incremental-font-transfer/src/patchmap.rs#L437

Also internally RangeSet ignores attempts to add ranges with start > end so it's not possible to construct one that has bad ranges.

and tests here: https://github.com/googlefonts/fontations/blob/main/incremental-font-transfer/src/patchmap.rs#L1998