diff options
Diffstat (limited to 'src/build/genprod.scala')
| -rw-r--r-- | src/build/genprod.scala | 111 |
1 files changed, 49 insertions, 62 deletions
diff --git a/src/build/genprod.scala b/src/build/genprod.scala index 08e907e99c..2017d7ff48 100644 --- a/src/build/genprod.scala +++ b/src/build/genprod.scala @@ -7,14 +7,11 @@ \* */ -/** <p> - * This program generates the <code>ProductN</code>, <code>TupleN</code> <code>FunctionN</code> classes, where - * <code>0 <= N <+ MAXWIDTH</code>. - * </p> - * <p> - * usage: <code>scala -classpath ... genprod PATH</code> - * where <code>PATH</code> is the desired output directory - * </p> +/** This program generates the ProductN, TupleN, FunctionN, + * and AbstractFunctionN, where 0 <= N <= MAX_ARITY. + * + * Usage: scala genprod <directory> + * where the argument is the desired output directory * * @author Burak Emir, Stephane Micheloud, Geoffrey Washburn, Paul Phillips * @version 1.1 @@ -73,7 +70,6 @@ object genprod { ** |/ ** \* */ - %s package %s @@ -88,21 +84,10 @@ package %s } val out = args(0) def writeFile(node: scala.xml.Node) { - import java.io.{File, FileOutputStream} - import java.nio.channels.Channels - val f = new File(out, node.attributes("name").toString) - try { - f.createNewFile - val fos = new FileOutputStream(f) - val c = fos.getChannel - val w = Channels.newWriter(c, "utf-8") - w.write(node.text) - w.close - } catch { - case e: java.io.IOException => - println(e.getMessage() + ": " + f) - exit(-1) - } + import scala.tools.nsc.io._ + val f = Path(out) / node.attributes("name").toString + f.parent.createDirectory(force = true) + f.toFile writeAll node.text } allfiles foreach writeFile @@ -118,15 +103,16 @@ zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz */ object FunctionZero extends Function(0) { override def covariantSpecs = "@specialized " override def descriptiveComment = functionNTemplate.format("currentSeconds", "anonfun0", -""" * - * <b>val</b> currentSeconds = () => System.currentTimeMillis() / 1000L +""" + * val currentSeconds = () => System.currentTimeMillis() / 1000L * - * <b>val</b> anonfun0 = <b>new</b> Function0[Long] { - * <b>def</b> apply(): Long = System.currentTimeMillis() / 1000L + * val anonfun0 = new Function0[Long] { + * def apply(): Long = System.currentTimeMillis() / 1000L * } * * println(currentSeconds()) - * println(anonfun0())""") + * println(anonfun0()) + * """) override def moreMethods = "" } @@ -135,15 +121,16 @@ object FunctionOne extends Function(1) { override def covariantSpecs = "@specialized(scala.Unit, scala.Boolean, scala.Int, scala.Float, scala.Long, scala.Double) " override def descriptiveComment = functionNTemplate.format("succ", "anonfun1", -""" * - * <b>val</b> succ = (x: Int) => x + 1 +""" + * val succ = (x: Int) => x + 1 * - * <b>val</b> anonfun1 = <b>new</b> Function1[Int, Int] { - * <b>def</b> apply(x: Int): Int = x + 1 + * val anonfun1 = new Function1[Int, Int] { + * def apply(x: Int): Int = x + 1 * } * * println(succ(0)) - * println(anonfun1(0))""") + * println(anonfun1(0)) + * """) override def moreMethods = """ /** (f compose g)(x) == f(g(x)) @@ -177,15 +164,16 @@ object FunctionTwo extends Function(2) { override def covariantSpecs = "@specialized(scala.Unit, scala.Boolean, scala.Int, scala.Float, scala.Long, scala.Double) " override def descriptiveComment = functionNTemplate.format("max", "anonfun2", -""" * - * <b>val</b> max = (x: Int, y: Int) => <b>if</b> (x < y) y <b>else</b> x +""" + * val max = (x: Int, y: Int) => if (x < y) y else x * - * <b>val</b> anonfun2 = <b>new</b> Function2[Int, Int, Int] { - * <b>def</b> apply(x: Int, y: Int): Int = <b>if</b> (x < y) y <b>else</b> x + * val anonfun2 = new Function2[Int, Int, Int] { + * def apply(x: Int, y: Int): Int = if (x < y) y else x * } * * println(max(0, 1)) - * println(anonfun2(0, 1))""") + * println(anonfun2(0, 1)) + * """) } object Function @@ -199,25 +187,21 @@ object Function } } -class Function(val i: Int) extends Group("Function") with Arity -{ - val functionNTemplate = """<p> +class Function(val i: Int) extends Group("Function") with Arity { + val functionNTemplate = """ * In the following example the definition of - * <code>%s</code> is a shorthand for the anonymous class - * definition <code>%s</code>: - * </p> - * <pre> - * <b>object</b> Main <b>extends</b> Application { -%s - * }</pre>""" + * %s is a shorthand for the anonymous class + * definition %s: + * + * {{{ + * object Main extends Application { %s } + * }}}""" def toStr() = "\"" + ("<function%d>" format i) + "\"" def apply() = { <file name={fileName}>{header} -/** <p> - * Function with {i} parameter{s}. - * </p> +/** Function with {i} parameter{s}. * {descriptiveComment} */ trait {className}{contraCoArgs} extends AnyRef {{ self => @@ -599,8 +583,18 @@ object ProductTwo extends Product(2) override def covariantSpecs = "@specialized(Int, Long, Double) " } -class Product(val i: Int) extends Group("Product") with Arity -{ +class Product(val i: Int) extends Group("Product") with Arity { + val productElementComment = """ + /** + * Returns the n-th projection of this product if 0 < n <= productArity, + * otherwise throws IndexOutOfBoundsException. + * + * @param n number of the projection to be returned + * @return same as _(n+1) + * @throws IndexOutOfBoundsException + */ +""" + def cases = { val xs = for ((x, i) <- mdefs.zipWithIndex) yield "case %d => %s".format(i, x) val default = "case _ => throw new IndexOutOfBoundsException(n.toString())" @@ -630,14 +624,7 @@ trait {className}{covariantArgs} extends Product {{ */ override def productArity = {i} - /** - * Returns the n-th projection of this product if 0&lt;=n&lt;arity, - * otherwise <code>null</code>. - * - * @param n number of the projection to be returned - * @return same as _(n+1) - * @throws IndexOutOfBoundsException - */ + {productElementComment} @throws(classOf[IndexOutOfBoundsException]) override def productElement(n: Int) = n match {{ {cases} }} |