Fix Marshal7951 for direct union leaf calls.
#947
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When `jsonValue` is called using the output of `reflect.ValueOf()` instead of
`reflect.StructField`, any interface type is lost through re-packing to the
empty interface (any). This means the `reflect.Kind` of a union field is no
longer the union type, but instead its underlying concrete type. The current
code doesn't handle this case, leading to runtime errors.
This handling code is now added, with a couple more fixes related to `empty`
types.
-----
Tested manually that the following ygnmi call is no longer affected by the
original error:
```go
sp := gnmi.OC().NetworkInstance("DEFAULT").Protocol(oc.PolicyTypes_INSTALL_PROTOCOL_TYPE_STATIC, "STATIC")
return ygnmi.Replace(context.Background(), c, sp.Static("1.1.1.1/32").SetTag().Config(), oc.NetworkInstance_Protocol_Static_SetTag_Union(oc.UnionUint32(42)))
```
Ankur19
approved these changes
Jan 11, 2024
Thanks for the review! and finding the bug! |
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When
jsonValueis called using the output ofreflect.ValueOf()instead ofreflect.StructField, any interface type is lost through re-packing to the empty interface (any). This means thereflect.Kindof a union field is no longer the union type, but instead its underlying concrete type. The current code doesn't handle this case, leading to runtime errors.This handling code is now added, with a couple more fixes related to
emptytypes.Tested manually that the following ygnmi call is no longer affected by the original error: