Return visitor errors over skip_decode errors if there are any #58
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is it possible to add a test to check for this behaviour? |
Good comment; lemme look at doing that! |
niklasad1
reviewed
Jun 7, 2024
scale-decode/src/visitor/decode.rs
Outdated
| @@ -123,10 +123,17 @@ impl<'temp, 'scale, 'resolver, V: Visitor> ResolvedTypeVisitor<'resolver> | |||
| let res = self.visitor.visit_composite(&mut items, self.type_id); | |||
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| // Skip over any bytes that the visitor chose not to decode: | |||
| items.skip_decoding()?; | |||
| *self.data = items.bytes_from_undecoded(); | |||
| let skip_res = items.skip_decoding(); | |||
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Is it possible to extract "this logic" to a helper function that we can re-use instead repeating it for the other visitors?
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the types are all a bit different and just happen to have the same method names; it could be a macro though :)
niklasad1
approved these changes
Jun 7, 2024
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I added tests to confirm the behaviour, all of which fail on |
lexnv
approved these changes
Jun 7, 2024
Merged
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Before this, if we hit an error when skipping over any remaining composite/variant/tuple/sequence items, we'd return that error, even if the visitor which we called returned an error of its own. This would obscure more meaningful errors behind vague skip_decode ones.
Now we prioritize returning visitor errors if there are any, to get somehting more useful back!