Added toString() method to all ranges.

runtime/src/jet/ByteRange.java

@@ -30,6 +30,19 @@ public final class ByteRange implements Range<Byte>, ByteIterable {
         this.count = count;
     }
 
+    @Override
+    public String toString() {
+        if (count == 0) {
+            return "<empty range>";
+        }
+        else if (count > 0) {
+            return getStart() + ".rangeTo(" + getEnd() + ")";
+        }
+        else {
+            return getStart() + ".downTo(" + getEnd() + ")";
+        }
+    }
+
     @Override
     public boolean contains(Byte item) {
         if (item == null) return false;

runtime/src/jet/CharRange.java

@@ -30,6 +30,19 @@ public final class CharRange implements Range<Character>, CharIterable {
         this.count = count;
     }
 
+    @Override
+    public String toString() {
+        if (count == 0) {
+            return "<empty range>";
+        }
+        else if (count > 0) {
+            return getStart() + ".rangeTo(" + getEnd() + ")";
+        }
+        else {
+            return getStart() + ".downTo(" + getEnd() + ")";
+        }
+    }
+
     @Override
     public boolean contains(Character item) {
         if (item == null) return false;

runtime/src/jet/DoubleRange.java

@@ -30,6 +30,19 @@ public final class DoubleRange implements Range<Double> {
         this.size = size;
     }
 
+    @Override
+    public String toString() {
+        if (size == 0.0) {
+            return "<empty range>";
+        }
+        else if (size > 0) {
+            return getStart() + ".rangeTo(" + getEnd() + ")";
+        }
+        else {
+            return getStart() + ".downTo(" + getEnd() + ")";
+        }
+    }
+
     @Override
     public boolean contains(Double item) {
         if (item == null) return false;

runtime/src/jet/FloatRange.java

@@ -30,6 +30,19 @@ public final class FloatRange implements Range<Float> {
         this.size = size;
     }
 
+    @Override
+    public String toString() {
+        if (size == 0.0) {
+            return "<empty range>";
+        }
+        else if (size > 0) {
+            return getStart() + ".rangeTo(" + getEnd() + ")";
+        }
+        else {
+            return getStart() + ".downTo(" + getEnd() + ")";
+        }
+    }
+
     @Override
     public boolean contains(Float item) {
         if (item == null) return false;

runtime/src/jet/LongRange.java

@@ -30,6 +30,20 @@ public final class LongRange implements Range<Long>, LongIterable {
         this.count = count;
     }
 
+    @Override
+    public String toString() {
+        if (count == 0) {
+            return "<empty range>";
+        }
+        else if (count > 0) {
+            return getStart() + ".rangeTo(" + getEnd() + ")";
+        }
+        else {
+            return getStart() + ".downTo(" + getEnd() + ")";
+        }
+    }
+
+
     public LongIterator step(long step) {
         if (step < 0)
             return new MyIterator(getEnd(), -count, -step);

runtime/src/jet/ShortRange.java

@@ -30,6 +30,19 @@ public final class ShortRange implements Range<Short>, ShortIterable {
         this.count = count;
     }
 
+    @Override
+    public String toString() {
+        if (count == 0) {
+            return "<empty range>";
+        }
+        else if (count > 0) {
+            return getStart() + ".rangeTo(" + getEnd() + ")";
+        }
+        else {
+            return getStart() + ".downTo(" + getEnd() + ")";
+        }
+    }
+
     public ShortIterator step(int step) {
         if (step < 0)
             return new MyIterator(getEnd(), -count, -step);