[SR-4774] Produce specific diagnostics when derivation of Encodable/Decodable fails #47351
Description
| Previous ID | SR-4774 |
| Radar | None |
| Original Reporter | @itaiferber |
| Type | Task |
| Status | Resolved |
| Resolution | Done |
Additional Detail from JIRA
| Votes | 0 |
| Component/s | Compiler |
| Labels | Task, DiagnosticsQoI |
| Assignee | @itaiferber |
| Priority | Medium |
md5: 43131a9e5203c4a71fe2b46ea515a93a
Issue Description:
Right now, when derivation of Encodable/Decodable fails, we get a generic diagnostic of type 'T' does not conform to protocol 'Decodable', complaining that we're missing init(from🙂 and encode(to🙂. The TODO messages in lib/Sema/DerivedConformanceCodable.cpp need to be addressed to provide diagnostics which explain what went wrong.