Scala newbie: ide not properly parsing simple .scala class Follow
Hi,
Here is an excerpt from a scala class, with errors (according to IJ..) highlighted. I am using the scala plugin installed yesterday, 8/24/10.
As you can see below, the List and Array classes, as well as the "int" primitive were not recognized. Any ideas?
class Group(val bound: Sphere) extends Scene {
var objs : List[Scene] = Nil
def intersect(i: Hit, ray: Ray): Hit = {
val l = bound.ray_sphere(ray)
if (l >= i.lambda) return i
var hit = i
for (scene <- objs)
hit = scene.intersect(hit, ray)
hit
}
}
def run(n: int, level: int, ss: int) : Unit = {
val scene = create(level, new Vec(0, -1, 0), 1)
val out = new FileOutputStream("scalaimage.pgm")
out.write(("P5\n"+n+" "+n+"\n255\n").getBytes())
for { yi <- 0 to (n - 1)
x <- 0 to (n - 1) } {
val y = (n - 1) - yi
var g : Double = 0
for { dx <- 0 to (ss - 1)
dy <- 0 to (ss - 1) } {
val d = new Vec(x+dx*1./ss-n/2., y+dy*1./ss-n/2., n)
val ray = new Ray(new Vec(0, 0, -4), unitise(d))
g += ray_trace(unitise(new Vec(-1, -3, 2)),
ray, scene)
}
out.write((.5+255.*g/(ss*ss)).toInt);
}
out.close()
}
def main(args: Array[String]) {
run(Integer.parseInt(args(1)),
Integer.parseInt(args(0)), 4)
}
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when i said 'newbie', was not kidding! so "int" is not valid in Scala: i changed to Int (I got this class from elsewhere obviously, they maybe should have tried scalac on it before posting..)
but the Array and List are still question marks - given the class does compile under scalac.
It looks like you have no Scala standard library in module dependencies.
To make sure that the problem have nothing to do with parsing, try to run a script like "println(List(1, 2, 3))"
Please, use this guide to configure the project.
Hi,
thanks for the link: we are heading in the right direction. I still have an issue though: the Scala Facet does not have any configuration values whatsoever: it is completely blank (see screenshot). So i cannot configure the (manually) created scala-compiler library.
Hi, it appears the recent scala plugin update for 9.0.3 (dated approx 9/12/10) has fixed this problem. I am now able to do scala console, scalac, scala. Makes me a happy camper: I was not relishing the thought of reverting to netbeans or eclipse.