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Discussion on: Go, I love you, but you're bringing me down.

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Charles Francoise Author

I think the real issue is that the error message doesn't make it clear that it's the embedded interface that is nil. I looked for a nil member, or the instance being nil itself, but I didn't think of checking the embedded interfaces.

I guess it's also part of being used to inheritance from C++ and Java (and generally learning to code in the 90s-00s), and I'll get used to double-checking embedded types. But it wouldn't hurt to have a more explicit error message, that would shave a few minutes off debugging the panic, even for experienced Go practitioners. And it would also ease the path for newcomers.