defmt: add impl for core::net #733
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3 tasks
Urhengulas
requested changes
Mar 6, 2023
defmt/src/impls/core_/net.rs
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| impl Format for net::Ipv6Addr { | ||
| fn format(&self, fmt: Formatter) { | ||
| crate::write!( | ||
| fmt, | ||
| "{:x}:{:x}:{:x}:{:x}:{:x}:{:x}:{:x}:{:x}", | ||
| self.octets()[0], | ||
| self.octets()[1], | ||
| self.octets()[2], | ||
| self.octets()[3], | ||
| self.octets()[4], | ||
| self.octets()[5], | ||
| self.octets()[6], | ||
| self.octets()[7] | ||
| ); | ||
| } | ||
| } |
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Ipv6Addr::octets(&self) returns a [u8; 16] (docs). Are you purposefully just using the first eight?
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Whoops, that's a mistake on my part, good catch, thanks!
defmt/src/impls/core_/net.rs
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| crate::write!( | ||
| fmt, | ||
| "{}.{}.{}.{}", | ||
| self.octets()[0], | ||
| self.octets()[1], | ||
| self.octets()[2], | ||
| self.octets()[3] | ||
| ); |
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You could also do the following. You don't have to; I just find it pretty.
Suggested change
| crate::write!( | |
| fmt, | |
| "{}.{}.{}.{}", | |
| self.octets()[0], | |
| self.octets()[1], | |
| self.octets()[2], | |
| self.octets()[3] | |
| ); | |
| let [a, b, c, d] = ip.octets(); | |
| crate::write!(fmt, "{}.{}.{}.{}", a, b, c, d); |
With println! you could even do following, but unfortunately we didn't implement that (yet):
let [a, b, c, d] = ip.octets();
println!("{a}.{b}.{c}.{d}");
|
Thank you! bors r+ |
|
Build succeeded: |
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This adds formatting for
core::nettypes.core::netis currently unstable, so this is feature gated.