From 6d4e71c111226591a4eeb5b77efac689ef1dd79a Mon Sep 17 00:00:00 2001
From: Paul Phillips <paulp@improving.org>
Date: Sun, 18 Aug 2013 15:36:18 -0700
Subject: Refinement of name-based unapplySeq.

Can't finnesse the drop method. Call it blindly for now, even
though in the long run you won't have to write drop.
---
 test/files/run/string-extractor.check |  5 +++++
 test/files/run/string-extractor.scala | 30 ++++++++++++++++++++++++++++++
 2 files changed, 35 insertions(+)

(limited to 'test/files/run')

diff --git a/test/files/run/string-extractor.check b/test/files/run/string-extractor.check
index 7268e44da9..47f3722c86 100644
--- a/test/files/run/string-extractor.check
+++ b/test/files/run/string-extractor.check
@@ -2,3 +2,8 @@ by
 BY
 oTheClown
 nope
+1: ob
+2: obby
+2: OBBY
+3: BOBO
+3: TomTomTheClown
diff --git a/test/files/run/string-extractor.scala b/test/files/run/string-extractor.scala
index 4fb977df0b..c0fe911ff3 100644
--- a/test/files/run/string-extractor.scala
+++ b/test/files/run/string-extractor.scala
@@ -11,9 +11,26 @@ final class StringExtract(val s: String) extends AnyVal {
   override def toString = s
 }
 
+final class ThreeStringExtract(val s: String) extends AnyVal {
+  def isEmpty                                      = (s eq null) || (s == "")
+  def get: (List[Int], Double, ThreeStringExtract) = ((s.length :: Nil, s.length.toDouble, this))
+  def length                                       = s.length
+  def lengthCompare(n: Int)                        = s.length compare n
+  def apply(idx: Int): Char                        = s charAt idx
+  def head: Char                                   = s charAt 0
+  def tail: String                                 = s drop 1
+  def drop(n: Int): ThreeStringExtract             = new ThreeStringExtract(s drop n)
+
+  override def toString = s
+}
+
+
 object Bippy {
   def unapplySeq(x: Any): StringExtract = new StringExtract("" + x)
 }
+object TripleBippy {
+  def unapplySeq(x: Any): ThreeStringExtract = new ThreeStringExtract("" + x)
+}
 
 object Test {
   def f(x: Any) = x match {
@@ -21,10 +38,23 @@ object Test {
     case _                                               => "nope"
   }
 
+  def g(x: Any): String = x match {
+    case TripleBippy(3 :: Nil, 3.0, 'b', chars @ _*)       => "1: " + chars
+    case TripleBippy(5 :: Nil, 5.0, 'b' | 'B', chars @ _*) => "2: " + chars
+    case TripleBippy(_, _, chars @ _*)                     => "3: " + chars
+    case _                                                 => "nope"
+  }
+
   def main(args: Array[String]): Unit = {
     println(f("Bobby"))
     println(f("BOBBY"))
     println(f("BoBoTheClown"))
     println(f("TomTomTheClown"))
+
+    println(g("bob"))
+    println(g("bobby"))
+    println(g("BOBBY"))
+    println(g("BOBO"))
+    println(g("TomTomTheClown"))
   }
 }
-- 
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