Peter Todd wrote:
Not quite. If I have a thunk, at the low level somewhere it must refer
to the transform function, the transform matrix, and the element that is
to be transformed. If I apply another transform to that unevaluated
thunk, my understanding is that haskell will represent it as such:
I have a program with this data structure:
data Element = Element {
elementOrigin :: V,
elementSubs :: [Element]
}
and this important bit of code that operates on it:
transform :: T - Element - Element
transform t e = Element {
elementOrigin = tmulv t
2008/12/21 Peter Todd p...@petertodd.org
If I could somehow arrange for the transform function to detect when it
is being applied to a unevaluated thunk, and then modify the thunk in
place, that would basically be the behavior I need. Any suggestions?
That is exactly what is already
On Sun, Dec 21, 2008 at 02:56:06AM -0700, Luke Palmer wrote:
2008/12/21 Peter Todd p...@petertodd.org
If I could somehow arrange for the transform function to detect when it
is being applied to a unevaluated thunk, and then modify the thunk in
place, that would basically be the behavior I
On Sun, Dec 21, 2008 at 10:27 AM, Peter Todd p...@petertodd.org wrote:
data Element = Element {
elementOrigin :: V,
elementSubs :: [Element]
}
| ElementThunk T Element
transform :: T - Element - Element
transform t (ElementThunk t2 e) = ElementThunk (tmul t t2) e
transform
