feat(encoding)!: EncodeLabelSet::encode() uses reference
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mxinden
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Very well done @cratelyn! Thank you.
@olix0r want to give this a review as well? Does this address your issue mentioned in #240 (comment)? Are there any other (breaking) changes you would need for linkerd?
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this commit alters the signature of the `EncodeLabelSet::encode()` trait method, such that it now accepts a mutable reference to its encoder. this is related to prometheus#135, and is a second proposal following previous work in prometheus#240. this change permits distinct label sets to be composed together, now that the label set encoder is not consumed. a new implementation for tuples `(A, B)` is provided. this commit includes a test case showing that a metric family can compose two label sets together, and that such a family can successfully be digested by the python client library. `derive-encode` is altered to generate code matching this new trait signature, and has been bumped to version 0.5.0 as a result of this breaking change in the `prometheus-client` library. Signed-off-by: katelyn martin <[email protected]>
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this commit alters the signature of the
EncodeLabelSet::encode()trait method, such that it now accepts a mutable reference to its encoder.this is related to #135, and is a second proposal following previous work in #240.
this change permits distinct label sets to be composed together, now that the label set encoder is not consumed. a new implementation for tuples
(A, B)is provided.this commit includes a test case showing that a metric family can compose two label sets together, and that such a family can successfully be digested by the python client library.
derive-encodeis altered to generate code matching this new trait signature, and has been bumped to version 0.5.0 as a result of this breaking change in theprometheus-clientlibrary.