Reflection and meta programming
Go Time: Golang, Software Engineering
How to Write Defensive Code
The Reflect API to interrogate those struct tags actually is quite good. It's quite a simple API because some of the Reflect package is it's so meta, isn't it? And some of it makes sense. Like if you try and get the length of an integer, you know, of course the methods are there in the Reflect package to do that. So at compile time, you could do it. It's only then at runtime, you're going to find out you can't get thelength of an integer. There's lots of examples of that. You'd be very verbose when it comes to kind of writing defensive code to make sure that you're not going to have any
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