Parameterize CompactForm String for optional SCALE impl#35
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By default, parity-scale-codec does not provide Encode/Decode impls for an owned String. This is only provided under the "full" feature which is not used by the substrate runtime, because it should not be used for consensus critical code. So in order for the CompactForm to be integrated into the substrate runtime, or wherever the "full" feature cannot be used, then we must parameterize the `String` type so that it can be both an `&'static str` on the runtime side where it is encoded, and a `String` in client/consuming code where it is decoded.
dvdplm
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Dec 8, 2020
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I can't say I fully understand the code surrounding your change here; the docs are a bit "academic" and I have a hard time following them at times.
The changes in this PR are straight forward and seems like a no-brainer per se.
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I'd like @Robbepop to approve this too before merging, because he disagreed with my previous approach #19 (comment) |
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Merged since other work already based on this |
This was referenced Jan 28, 2021
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By default, parity-scale-codec does not provide Encode/Decode impls for an owned String.
This is only provided under the "full" feature which is not used by the substrate runtime,
because it should not be used for consensus critical code. So in order for the CompactForm
to be integrated into the substrate runtime, or wherever the "full" feature cannot be used,
then we must parameterize the
Stringtype so that it can be both an&'static stron theruntime side where it is encoded, and a
Stringin client/consuming code where it is decoded.Note that previously I had done something similar with
OwnedFormdiscussed with @Robbepop here. But this or something similar is now required in case we want to generate the metadata directly inside the substrate runtime whereStrings are not allowed.