In article
<4ee53496-ebec-4ee5-be0c-de344ac58...@y39g2000prd.googlegroups.com>,
hetchkay wrote:
[complicated description elided]
> You could consider this to be some sort of DSL. However, because of
> the number of rules involved, I am trying to be as close to Python
> expressions as possible.
>
> I suspect, if you can be explicit about the goal you're aiming for with
> this code, a better design can be found that doesn't require all those
> polymorphism-breaking type checks.
>
It is difficult to explain what I am trying to do, but let me try. I
am mapping data from one hierarchy into an
hetchkay writes:
> Hi,
> I want to apply a "convert" function on an object as follows:
> If the object is of MyType type, invoke the passed in function.
> If the object is a dictionary, apply on the keys and values of the
> dictionary recursively.
> If the object is a set, list or tuple, apply on
On Sat, Sep 10, 2011 at 12:19 AM, hetchkay wrote:
> Hi,
> I want to apply a "convert" function on an object as follows:
> If the object is of MyType type, invoke the passed in function.
> If the object is a dictionary, apply on the keys and values of the
> dictionary recursively.
> If the object i
Hi,
I want to apply a "convert" function on an object as follows:
If the object is of MyType type, invoke the passed in function.
If the object is a dictionary, apply on the keys and values of the
dictionary recursively.
If the object is a set, list or tuple, apply on each element
recursively.
Else
