From e6459a351f14d76dbac83e95a55664820387ad7b Mon Sep 17 00:00:00 2001 From: bjculkin Date: Mon, 27 Feb 2017 10:11:43 -0500 Subject: Package reorganization --- .../java/bjc/utils/data/HalfBoundLazyPair.java | 158 --------------------- 1 file changed, 158 deletions(-) delete mode 100644 BJC-Utils2/src/main/java/bjc/utils/data/HalfBoundLazyPair.java (limited to 'BJC-Utils2/src/main/java/bjc/utils/data/HalfBoundLazyPair.java') diff --git a/BJC-Utils2/src/main/java/bjc/utils/data/HalfBoundLazyPair.java b/BJC-Utils2/src/main/java/bjc/utils/data/HalfBoundLazyPair.java deleted file mode 100644 index 58c375b..0000000 --- a/BJC-Utils2/src/main/java/bjc/utils/data/HalfBoundLazyPair.java +++ /dev/null @@ -1,158 +0,0 @@ -package bjc.utils.data; - -import java.util.function.BiFunction; -import java.util.function.Function; -import java.util.function.Supplier; - -/* - * A lazy pair, with only one side bound - */ -class HalfBoundLazyPair - implements IPair { - private Supplier oldSupplier; - - private Function> binder; - - private IPair boundPair; - private boolean pairBound; - - public HalfBoundLazyPair(Supplier oldSupp, - Function> bindr) { - oldSupplier = oldSupp; - binder = bindr; - } - - @Override - public IPair bind( - BiFunction> bindr) { - IHolder> newPair = new Identity<>( - boundPair); - IHolder newPairMade = new Identity<>(pairBound); - - Supplier leftSupp = () -> { - if (!newPairMade.getValue()) { - newPair.replace(binder.apply(oldSupplier.get())); - newPairMade.replace(true); - } - - return newPair.unwrap((pair) -> pair.getLeft()); - }; - - Supplier rightSupp = () -> { - if (!newPairMade.getValue()) { - newPair.replace(binder.apply(oldSupplier.get())); - newPairMade.replace(true); - } - - return newPair.unwrap((pair) -> pair.getRight()); - }; - - return new BoundLazyPair<>(leftSupp, rightSupp, bindr); - } - - @Override - public IPair bindLeft( - Function> leftBinder) { - Supplier leftSupp = () -> { - IPair newPair = boundPair; - - if (!pairBound) { - newPair = binder.apply(oldSupplier.get()); - } - - return newPair.getLeft(); - }; - - return new HalfBoundLazyPair<>(leftSupp, leftBinder); - } - - @Override - public IPair bindRight( - Function> rightBinder) { - Supplier rightSupp = () -> { - IPair newPair = boundPair; - - if (!pairBound) { - newPair = binder.apply(oldSupplier.get()); - } - - return newPair.getRight(); - }; - - return new HalfBoundLazyPair<>(rightSupp, rightBinder); - } - - @Override - public IPair combine( - IPair otherPair, - BiFunction leftCombiner, - BiFunction rightCombiner) { - return otherPair.bind((otherLeft, otherRight) -> { - return bind((leftVal, rightVal) -> { - return new LazyPair<>( - leftCombiner.apply(leftVal, otherLeft), - rightCombiner.apply(rightVal, otherRight)); - }); - }); - } - - @Override - public IPair mapLeft( - Function mapper) { - Supplier leftSupp = () -> { - if (pairBound) { - return mapper.apply(boundPair.getLeft()); - } - - NewLeft leftVal = binder.apply(oldSupplier.get()).getLeft(); - - return mapper.apply(leftVal); - }; - - Supplier rightSupp = () -> { - if (pairBound) { - return boundPair.getRight(); - } - - return binder.apply(oldSupplier.get()).getRight(); - }; - - return new LazyPair<>(leftSupp, rightSupp); - } - - @Override - public IPair mapRight( - Function mapper) { - Supplier leftSupp = () -> { - if (pairBound) { - return boundPair.getLeft(); - } - - return binder.apply(oldSupplier.get()).getLeft(); - }; - - Supplier rightSupp = () -> { - if (pairBound) { - return mapper.apply(boundPair.getRight()); - } - - NewRight rightVal = binder.apply(oldSupplier.get()).getRight(); - - return mapper.apply(rightVal); - }; - - return new LazyPair<>(leftSupp, rightSupp); - } - - @Override - public MergedType merge( - BiFunction merger) { - if (!pairBound) { - boundPair = binder.apply(oldSupplier.get()); - - pairBound = true; - } - - return boundPair.merge(merger); - } -} \ No newline at end of file -- cgit v1.2.3