Count me among those who love the language just the way it is and regard
the prospect Go 2.0 with dread and loathing born of the Python 3
experience.
That being said, there's one itty-bitty change I'd like to advocate: *Allow
methods on primitives*.
I think I understand why allowing new methods on external packages is a bad
idea because it introduces a form of the fragile superclass problem. But
surely there's nothing fragile about strings, ints and floats.
Being unable to define a method on a string is *not* a showstopper since
one can always do "type Foo string" or use type-assertions. It's just that
it's inelegant in the case of a function that takes a recursive struct as
an argument if the leaves of the tree are strings. For example
type HTMLTree struct {
tag string
attributes string
content * Content //
}
type Content interface {
Render()
}
// NOT ALLOWED
func (s string) Render() {
}
So I have to do something like
type SC string
func (s SC) Render() {
}
but that means instead of being able to write
Div("", P("id=1", "When in the course of ..."))
one must use the wrapper type on every content string.
Div("", P("id=1", SC("When in the course of ...")))
Not the end of the world, but uglier than it ought to be, IMO.
Is there a way to get around this or, failing that, an explanation of why
methods on primitives are verboten?
Thanks!
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