@@ -0,0 +1,398 @@
+package org.hummingbirdlang.types.concrete;%0A%0Aimport org.hummingbirdlang.types.ConcreteType;%0A%0Apublic final class BooleanType extends ConcreteType %7B%0A  public static final BooleanType SINGLETON_TRUE = new BooleanType(true);%0A  public static final BooleanType SINGLETON_FALSE = new BooleanType(false);%0A%0A  public final boolean value;%0A%0A  private BooleanType(boolean value) %7B%0A    this.value = value;%0A  %7D%0A%7D%0A

Add boolean type