/* * Copyright © 2014 <code@io7m.com> http://io7m.com * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ package com.io7m.r1.documentation.examples; import com.io7m.jfunctional.Unit; import com.io7m.junreachable.UnreachableCodeException; import com.io7m.r1.kernel.types.KMaterialAlbedoTextured; import com.io7m.r1.kernel.types.KMaterialAlbedoType; import com.io7m.r1.kernel.types.KMaterialAlbedoUntextured; import com.io7m.r1.kernel.types.KMaterialAlbedoVisitorType; import com.io7m.r1.types.RException; /** * An example of pattern matching on materials. */ public final class Match0 { private Match0() { throw new UnreachableCodeException(); } public static void whichAlbedoType( final KMaterialAlbedoType m) throws RException { m .albedoAccept(new KMaterialAlbedoVisitorType<Unit, UnreachableCodeException>() { @Override public Unit textured( final KMaterialAlbedoTextured mt) { System.out.println("Textured"); return Unit.unit(); } @Override public Unit untextured( final KMaterialAlbedoUntextured mu) { System.out.println("Untextured"); return Unit.unit(); } }); } }