const_missing

[Hal E. Fulton]

I just tried to use const_missing (which I think is a
neat idea).

Shouldn't it work at the top level? Am I doing something
wrong?

def const_missing
"not found"
end

p FOO

The above gives an error.

Hal

--
Hal Fulton
[email]hal9000@hypermetrics.com[/email]

[Christoph R.]

Hal E. Fulton wrote:

> I just tried to use const_missing (which I think is a
> neat idea).
>
> Shouldn't it work at the top level? Am I doing something
> wrong?
>
> def const_missing
> "not found"
> end

This should be

---
def Object.const_missing(sym)
p sym
end

Foo
---

/Christoph

[Christoph R.]

Hal E. Fulton wrote:

....

> The above gives an error.

On second thought your implementation could
have worked - the following may sheet more light
(confusion in my case;-) on it ...

--
def const_missing(sym)
p sym
end

def const_missingx(sym)
p sym
end

public :const_missing,:const_missingx
Object.const_missingx(:K) # :K
Object.const_missing(:K) # throws a NameError ???
---

/Christoph

[Roger Deloy Pack]

here's an example, for followers, since google brought me quickly here:



class Object
def self.const_missing c
p 'const is', c
end
end