[WalterBright]

You don't have to wait for the compiler to complain. Using:

    pragma(msg, T);

where T is any type will print the type to the screen during compilation. pragma(msg) will print all kinds of things, making it a very handy tool to visualize what is happening while compiling. I use it all the time.

[slezyr]

Print-debug you program before it's even compiled and even have a bug is a bag idea.

[arunc]

Why so?

[entropicdrifter]

You shouldn't need to reverse-engineer your own program just to understand the code you wrote yourself.

[WalterBright]

I salute those who never have to debug their own code :-)

[pjmlp]

Apparently it is a common Go pattern to discover which interfaces a type implements.