Re: [Haskell-cafe] Type Directed Name Resolution

On Thu, Nov 11, 2010 at 1:34 AM, John Lask wrote:

On 11/11/2010 5:21 PM, Ketil Malde wrote:

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"Richard O'Keefe"  writes:

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it is often desirable to have the same field names for many records in the same module.

very much so, this is currently possible, with the restriction that the field names must have the same type modulo the record it is selecting on.

what is disirable is that this restriction be lifted.

Haskell has a wonderful history of being careful to consider both sides of a restriction. One one hand, a restriction can make it harder to write something you want to write. On the other hand, a restriction can provide properties that make it easy to transform and reason about your program. So I am not ready to accept your claim that this is desirable without further justification.