Add comment that Symbols are interned

typelevel · Sep 28, 2016 · 318e456 · 318e456
1 parent d75186a
commit 318e456
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/kernel/src/main/scala/cats/kernel/instances/symbol.scala b/kernel/src/main/scala/cats/kernel/instances/symbol.scala
@@ -8,8 +8,12 @@ trait SymbolInstances {
 }
 
 class SymbolOrder extends Order[Symbol] {
-  override def eqv(x: Symbol, y: Symbol): Boolean =
+
+  override def eqv(x: Symbol, y: Symbol): Boolean = {
+    // Symbols are interned
     x eq y
+  }
+
   def compare(x: Symbol, y: Symbol): Int =
     if (x eq y) 0 else x.name compareTo y.name
 }