src/HOL/Library/Code_Natural.thy

--- a/src/HOL/Library/Code_Natural.thy	Fri Feb 15 11:36:34 2013 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,148 +0,0 @@
-(*  Title:      HOL/Library/Code_Natural.thy
-    Author:     Florian Haftmann, TU Muenchen
-*)
-
-theory Code_Natural
-imports "../Main"
-begin
-
-section {* Alternative representation of @{typ code_numeral} for @{text Haskell} and @{text Scala} *}
-
-code_include Haskell "Natural"
-{*import Data.Array.ST;
-
-newtype Natural = Natural Integer deriving (Eq, Show, Read);
-
-instance Num Natural where {
-  fromInteger k = Natural (if k >= 0 then k else 0);
-  Natural n + Natural m = Natural (n + m);
-  Natural n - Natural m = fromInteger (n - m);
-  Natural n * Natural m = Natural (n * m);
-  abs n = n;
-  signum _ = 1;
-  negate n = error "negate Natural";
-};
-
-instance Ord Natural where {
-  Natural n <= Natural m = n <= m;
-  Natural n < Natural m = n < m;
-};
-
-instance Ix Natural where {
-  range (Natural n, Natural m) = map Natural (range (n, m));
-  index (Natural n, Natural m) (Natural q) = index (n, m) q;
-  inRange (Natural n, Natural m) (Natural q) = inRange (n, m) q;
-  rangeSize (Natural n, Natural m) = rangeSize (n, m);
-};
-
-instance Real Natural where {
-  toRational (Natural n) = toRational n;
-};
-
-instance Enum Natural where {
-  toEnum k = fromInteger (toEnum k);
-  fromEnum (Natural n) = fromEnum n;
-};
-
-instance Integral Natural where {
-  toInteger (Natural n) = n;
-  divMod n m = quotRem n m;
-  quotRem (Natural n) (Natural m)
-    | (m == 0) = (0, Natural n)
-    | otherwise = (Natural k, Natural l) where (k, l) = quotRem n m;
-};*}
-
-
-code_reserved Haskell Natural
-
-code_include Scala "Natural"
-{*object Natural {
-
-  def apply(numeral: BigInt): Natural = new Natural(numeral max 0)
-  def apply(numeral: Int): Natural = Natural(BigInt(numeral))
-  def apply(numeral: String): Natural = Natural(BigInt(numeral))
-
-}
-
-class Natural private(private val value: BigInt) {
-
-  override def hashCode(): Int = this.value.hashCode()
-
-  override def equals(that: Any): Boolean = that match {
-    case that: Natural => this equals that
-    case _ => false
-  }
-
-  override def toString(): String = this.value.toString
-
-  def equals(that: Natural): Boolean = this.value == that.value
-
-  def as_BigInt: BigInt = this.value
-  def as_Int: Int = if (this.value >= scala.Int.MinValue && this.value <= scala.Int.MaxValue)
-      this.value.intValue
-    else error("Int value out of range: " + this.value.toString)
-
-  def +(that: Natural): Natural = new Natural(this.value + that.value)
-  def -(that: Natural): Natural = Natural(this.value - that.value)
-  def *(that: Natural): Natural = new Natural(this.value * that.value)
-
-  def /%(that: Natural): (Natural, Natural) = if (that.value == 0) (new Natural(0), this)
-    else {
-      val (k, l) = this.value /% that.value
-      (new Natural(k), new Natural(l))
-    }
-
-  def <=(that: Natural): Boolean = this.value <= that.value
-
-  def <(that: Natural): Boolean = this.value < that.value
-
-}
-*}
-
-code_reserved Scala Natural
-
-code_type code_numeral
-  (Haskell "Natural.Natural")
-  (Scala "Natural")
-
-setup {*
-  fold (Numeral.add_code @{const_name Code_Numeral.Num}
-    false Code_Printer.literal_alternative_numeral) ["Haskell", "Scala"]
-*}
-
-code_instance code_numeral :: equal
-  (Haskell -)
-
-code_const "0::code_numeral"
-  (Haskell "0")
-  (Scala "Natural(0)")
-
-code_const "plus \<Colon> code_numeral \<Rightarrow> code_numeral \<Rightarrow> code_numeral"
-  (Haskell infixl 6 "+")
-  (Scala infixl 7 "+")
-
-code_const "minus \<Colon> code_numeral \<Rightarrow> code_numeral \<Rightarrow> code_numeral"
-  (Haskell infixl 6 "-")
-  (Scala infixl 7 "-")
-
-code_const "times \<Colon> code_numeral \<Rightarrow> code_numeral \<Rightarrow> code_numeral"
-  (Haskell infixl 7 "*")
-  (Scala infixl 8 "*")
-
-code_const Code_Numeral.div_mod
-  (Haskell "divMod")
-  (Scala infixl 8 "/%")
-
-code_const "HOL.equal \<Colon> code_numeral \<Rightarrow> code_numeral \<Rightarrow> bool"
-  (Haskell infix 4 "==")
-  (Scala infixl 5 "==")
-
-code_const "less_eq \<Colon> code_numeral \<Rightarrow> code_numeral \<Rightarrow> bool"
-  (Haskell infix 4 "<=")
-  (Scala infixl 4 "<=")
-
-code_const "less \<Colon> code_numeral \<Rightarrow> code_numeral \<Rightarrow> bool"
-  (Haskell infix 4 "<")
-  (Scala infixl 4 "<")
-
-end