On 2013-11-17 22:15, Ellery Newcomer wrote:
On 11/17/2013 11:41 AM, Simen Kjærås wrote:
Source is attached. I hope God forgives me.
I suppose you'd have to do something like
x.Where(OR( NOT(Args.thing = "thing"), Args.sing = "sing"))
for nesting and negation and all that.
I'd wait for walter to relax the restrictions on ==, &&, etc operator
overloading. Then you probably could do
x.Where(X => X.thing != "thing" || X.sing == "sing")
let's see here. If X's type is QueryExp!Entity and the return type is
SomeRange!Entity then querying looks doable.
how about composing expressions? take the result of that lambda EXP,
EXP = EXP && X.cling == 1; // should work fine?
how about decomposing expressions?
EXP = EXP.lhs; // should work fine?
EXP.rhs.rhs.value // returns "sing" - should work fine? the lambda
should create a closure, so we should be able to get out any value we
put in
you won't be able to do
x.Where(X => upper(X.thing) == "THING")
That works with the Rails plugin Squeel. Although you need to prefix
"upper" with "X.".
https://github.com/ernie/squeel
--
/Jacob Carlborg
