WIP ConstCoordSeq #138
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WIP ConstCoordSeq #138
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| let extra = if let Some(x) = original.context.get_last_error() { | ||
| format!("\nLast error: {x}") | ||
| } else { | ||
| String::new() | ||
| }; | ||
| return Err(Error::NoConstructionFromNullPtr(format!( | ||
| "CoordSeq::{caller}{extra}", | ||
| ))); |
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You're calling two format! here, which isn't great. Could you instead have format!s directly into the let Some(x) else please?
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I don't see anything bad in particular in the implementation. So the relevant question here would be: are you sure this clone was this expensive for you? Do you have a flamegraph comparison between before and after? |
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Author
No I'm not 😄 it was an (uneducated?) guess. I need to learn how to better profile rust code 😅 |
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Well in any case, this PR seems to be on good track so if you fix the errors, I'll gladly merge it. Take a look at how the other |
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Closes #137
This adds a new struct for
ConstCoordSeqthat contains a const pointer to the GEOS coord seq object.The ideal API would probably be to have something like the
Geomtrait for coordinate sequences, but I assume that's backwards-incompatible, because users would then also have to import such a trait?I didn't notice any performance improvement on my relevant benchmark in my geoarrow project, so it's possible I either implemented it wrong or this is such a small performance gain that it's immeasurably small.