A way to extend other module's struct

[kitech]

If original module struct no a method, but current module has a function, that first argument is other module's struct, and the name is the same as requested one, then this function can seem as the struct's method.

Example: I want os.Process.name() string method,

fn name(p &os.Process) string { return 'foo' }

p.name() // use as normal

This can limit only used in current module.

[JalonSolov]

V does not allow this, on purpose. Things can become far too confusing, trying to figure out where a method was declared. If it can only be declared inside the same module, that makes things a lot simpler.

You can, however, make an alias to something in another module, and add methods to the alias.

[kitech]

Thanks, I known the alias way, it need extra convert between orignal struct and alias type.