diff --git a/compiler/frontend/src/jet/Ranges.jet b/compiler/frontend/src/jet/Ranges.jet
index 0838f01df81..cf4b25cec5f 100644
--- a/compiler/frontend/src/jet/Ranges.jet
+++ b/compiler/frontend/src/jet/Ranges.jet
@@ -1,15 +1,19 @@
 package jet
 
-public trait Range<in T : Comparable<T>> {
+public trait Range<in T: Comparable<T>> {
     public val start: T
     public val end: T
-    public fun contains(item : T) : Boolean
+    public fun contains(item : T): Boolean
 }
 
-public class IntRange(public override val start : Int, public override val end : Int) : Range<Int>, NumberSequence<Int>, IntIterable {
-    public override fun iterator () : IntIterator
+public class IntRange(
+    public override val start: Int,
+    public override val end : Int
+) : Range<Int>, NumberSequence<Int>, IntIterable {
 
-    public override fun contains (elem: Int) : Boolean
+    public override fun iterator() : IntIterator
+
+    public override fun contains(elem: Int): Boolean
 
     public override val increment: Int
 
@@ -18,10 +22,14 @@ public class IntRange(public override val start : Int, public override val end :
     }
 }
 
-public class LongRange(public override val start : Long, public override val end : Long) : Range<Long>, NumberSequence<Long>, LongIterable {
-    public override fun iterator () : LongIterator
+public class LongRange(
+    public override val start: Long,
+    public override val end: Long
+) : Range<Long>, NumberSequence<Long>, LongIterable {
 
-    public override fun contains (elem: Long) : Boolean
+    public override fun iterator(): LongIterator
+
+    public override fun contains(elem: Long): Boolean
 
     public override val increment: Long
 
@@ -30,10 +38,14 @@ public class LongRange(public override val start : Long, public override val end
     }
 }
 
-public class ByteRange(public override val start : Byte, public override val end : Byte) : Range<Byte>, NumberSequence<Byte>, ByteIterable {
-    public override fun iterator () : ByteIterator
+public class ByteRange(
+    public override val start: Byte,
+    public override val end : Byte
+): Range<Byte>, NumberSequence<Byte>, ByteIterable {
 
-    public override fun contains (elem: Byte) : Boolean
+    public override fun iterator(): ByteIterator
+
+    public override fun contains(elem: Byte): Boolean
 
     public override val increment: Int
 
@@ -42,10 +54,14 @@ public class ByteRange(public override val start : Byte, public override val end
     }
 }
 
-public class ShortRange(public override val start : Short, public override val end : Short) : Range<Short>, NumberSequence<Short>, ShortIterable {
-    public override fun iterator () : ShortIterator
+public class ShortRange(
+    public override val start: Short,
+    public override val end: Short
+) : Range<Short>, NumberSequence<Short>, ShortIterable {
 
-    public override fun contains (elem: Short) : Boolean
+    public override fun iterator(): ShortIterator
+
+    public override fun contains(elem: Short): Boolean
 
     public override val increment: Int
 
@@ -54,10 +70,14 @@ public class ShortRange(public override val start : Short, public override val e
     }
 }
 
-public class CharRange(public override val start : Char, public override val end : Char) : Range<Char>, NumberSequence<Char>, CharIterable {
-    public override fun iterator () : CharIterator
+public class CharRange(
+    public override val start: Char,
+    public override val end: Char
+) : Range<Char>, NumberSequence<Char>, CharIterable {
 
-    public override fun contains (elem: Char) : Boolean
+    public override fun iterator(): CharIterator
+
+    public override fun contains(elem: Char) : Boolean
 
     public override val increment: Int
 
@@ -66,10 +86,14 @@ public class CharRange(public override val start : Char, public override val end
     }
 }
 
-public class FloatRange(public override val start : Float, public override val end : Float) : Range<Float>, NumberSequence<Float>, FloatIterable {
-    public override fun iterator () : FloatIterator
+public class FloatRange(
+    public override val start: Float,
+    public override val end: Float
+) : Range<Float>, NumberSequence<Float>, FloatIterable {
 
-    public override fun contains (elem: Float) : Boolean
+    public override fun iterator(): FloatIterator
+
+    public override fun contains(elem: Float): Boolean
 
     public override val increment: Float
 
@@ -78,10 +102,14 @@ public class FloatRange(public override val start : Float, public override val e
     }
 }
 
-public class DoubleRange(public override val start : Double, public override val end : Double) : Range<Double>, NumberSequence<Double>, DoubleIterable {
-    public override fun iterator () : DoubleIterator
+public class DoubleRange(
+    public override val start: Double,
+    public override val end: Double
+) : Range<Double>, NumberSequence<Double>, DoubleIterable {
 
-    public override fun contains (elem: Double) : Boolean
+    public override fun iterator() : DoubleIterator
+
+    public override fun contains(elem: Double): Boolean
 
     public override val increment: Double