Remove code from compiler central.

All those old-timey methods whose melodies have become
unfashionable.

1 files changed, 2 insertions, 55 deletions

diff --git a/src/compiler/scala/tools/nsc/util/JavaCharArrayReader.scala b/src/compiler/scala/tools/nsc/util/JavaCharArrayReader.scala
index b7ed7903bc..fc3dd2bac2 100644
--- a/src/compiler/scala/tools/nsc/util/JavaCharArrayReader.scala
+++ b/src/compiler/scala/tools/nsc/util/JavaCharArrayReader.scala
@@ -14,74 +14,32 @@ class JavaCharArrayReader(buf: IndexedSeq[Char], start: Int, /* startline: int,
   def this(buf: IndexedSeq[Char], decodeUni: Boolean, error: String => Unit) =
     this(buf, 0, /* 1, 1, */ decodeUni, error)
 
-  /** produce a duplicate of this char array reader which starts reading
-    *  at current position, independent of what happens to original reader
-	*/
-  def dup: JavaCharArrayReader = clone().asInstanceOf[JavaCharArrayReader]
-
-  /** layout constant
-   */
-  val tabinc = 8
-
   /** the line and column position of the current character
   */
   var ch: Char = _
   var bp = start
-  var oldBp = -1
-  var oldCh: Char = _
-
-  //private var cline: Int = _
-  //private var ccol: Int = _
   def cpos = bp
   var isUnicode: Boolean = _
-  var lastLineStartPos: Int = 0
-  var lineStartPos: Int = 0
-  var lastBlankLinePos: Int = 0
-
-  private var onlyBlankChars = false
-  //private var nextline = startline
-  //private var nextcol = startcol
-
-  private def markNewLine() {
-    lastLineStartPos = lineStartPos
-    if (onlyBlankChars) lastBlankLinePos = lineStartPos
-    lineStartPos = bp
-    onlyBlankChars = true
-    //nextline += 1
-    //nextcol = 1
-  }
-
-  def hasNext: Boolean = if (bp < buf.length) true
-  else {
-    false
-  }
 
-  def last: Char = if (bp > start + 2) buf(bp - 2) else ' ' // XML literals
+  def hasNext = bp < buf.length
 
   def next(): Char = {
-    //cline = nextline
-    //ccol = nextcol
     val buf = this.buf.asInstanceOf[collection.mutable.WrappedArray[Char]].array
     if(!hasNext) {
       ch = SU
       return SU  // there is an endless stream of SU's at the end
     }
-    oldBp = bp
-    oldCh = ch
     ch = buf(bp)
     isUnicode = false
     bp = bp + 1
     ch match {
       case '\t' =>
-        // nextcol = ((nextcol - 1) / tabinc * tabinc) + tabinc + 1;
       case CR =>
         if (bp < buf.size && buf(bp) == LF) {
           ch = LF
           bp += 1
         }
-        markNewLine()
       case LF | FF =>
-        markNewLine()
       case '\\' =>
         def evenSlashPrefix: Boolean = {
           var p = bp - 2
@@ -90,11 +48,10 @@ class JavaCharArrayReader(buf: IndexedSeq[Char], start: Int, /* startline: int,
         }
         def udigit: Int = {
           val d = digit2int(buf(bp), 16)
-          if (d >= 0) { bp += 1; /* nextcol = nextcol + 1 */ }
+          if (d >= 0) bp += 1
           else error("error in unicode escape");
           d
         }
-        // nextcol += 1
         if (buf(bp) == 'u' && decodeUni && evenSlashPrefix) {
           do {
             bp += 1 //; nextcol += 1
@@ -104,20 +61,10 @@ class JavaCharArrayReader(buf: IndexedSeq[Char], start: Int, /* startline: int,
           isUnicode = true
         }
       case _ =>
-        if (ch > ' ') onlyBlankChars = false
-        // nextcol += 1
     }
     ch
   }
 
-  def rewind() {
-    if (oldBp == -1) throw new IllegalArgumentException
-    bp = oldBp
-    ch = oldCh
-    oldBp = -1
-    oldCh = 'x'
-  }
-
   def copy: JavaCharArrayReader =
     new JavaCharArrayReader(buf, bp, /* nextcol, nextline, */ decodeUni, error)
 }