1 files changed, 0 insertions, 82 deletions
diff --git a/src/compiler/scala/tools/nsc/backend/icode/TypeStacks.scala b/src/compiler/scala/tools/nsc/backend/icode/TypeStacks.scala
deleted file mode 100644
index 57d51dad49..0000000000
--- a/src/compiler/scala/tools/nsc/backend/icode/TypeStacks.scala
+++ /dev/null
@@ -1,82 +0,0 @@
-/* NSC -- new Scala compiler
- * Copyright 2005-2013 LAMP/EPFL
- * @author  Martin Odersky
- */
-
-package scala.tools.nsc
-package backend
-package icode
-
-/** This trait ...
- *
- *  @author  Iulian Dragos
- *  @version 1.0
- */
-trait TypeStacks {
-  self: ICodes =>
-
-  /* This class simulates the type of the operand
-   * stack of the ICode.
-   */
-  type Rep = List[TypeKind]
-
-  class TypeStack(var types: Rep) {
-    if (types.nonEmpty)
-      checkerDebug("Created " + this)
-
-    def this() = this(Nil)
-    def this(that: TypeStack) = this(that.types)
-
-    def length: Int = types.length
-    def isEmpty     = length == 0
-    def nonEmpty    = length != 0
-
-    /** Push a type on the type stack. UNITs are ignored. */
-    def push(t: TypeKind) = {
-      if (t != UNIT)
-        types = t :: types
-    }
-
-    def head: TypeKind = types.head
-
-    /** Removes the value on top of the stack, and returns it. It assumes
-     *  the stack contains at least one element.
-     */
-    def pop: TypeKind = {
-      val t = types.head
-      types = types.tail
-      t
-    }
-
-    /** Return the topmost two values on the stack. It assumes the stack
-     *  is large enough. Topmost element first.
-     */
-    def pop2: (TypeKind, TypeKind) = (pop, pop)
-
-    /** Return the topmost three values on the stack. It assumes the stack
-     *  is large enough. Topmost element first.
-     */
-    def pop3: (TypeKind, TypeKind, TypeKind) = (pop, pop, pop)
-
-    /** Drop the first n elements of the stack. */
-    def pop(n: Int): List[TypeKind] = {
-      val prefix = types.take(n)
-      types = types.drop(n)
-      prefix
-    }
-
-    def apply(n: Int): TypeKind = types(n)
-
-    /* This method returns a String representation of the stack */
-    override def toString() =
-      if (types.isEmpty) "[]"
-      else types.mkString("[", " ", "]")
-
-    override def hashCode() = types.hashCode()
-    override def equals(other: Any): Boolean = other match {
-      case x: TypeStack => x.types == types
-      case _            => false
-    }
-  }
-
-}