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Make load_from_memory generic to improve compile times - #2470
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May 24, 2025
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Would you add some comment that documents the reason for the generic? It would be nice to have at least some resistance to regressing. (Also I'm a little curious as to why the compile time cost is that large…, it would seem to be just a bit of codegen, but probably also affects the number of linked items dramatically).
This was referenced Aug 31, 2025
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Currently, the
load_from_memory[_with_format]methods cause rustc to generate code for them when compiling the image crate, even if downstream code never decodes images from in-memory buffers. This PR changes them to be generic so that they only get monomorphized only if they are actually used.Reduces time for release builds by ~1.2 seconds on my machine.
See also: #2468, #2469