Fewer instantiations of Option::map_or #399
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This lowers us from 59 instantiations of Option::map_or to just 6. On my computer this improves serde_json compile time by about 5%. Pretty wild!
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This lowers us from 59 instantiations of Option::map_or to just 6. On my computer this improves serde_json compile time by about 5%. Pretty wild!
Fixes #391. Hopefully the real fix will be rust-lang/rust#46758.