From 002516bd03b2ea3f731c8139c9a5f716902ab702 Mon Sep 17 00:00:00 2001
From: Ben Culkin <scorpress@gmail.com>
Date: Tue, 7 Apr 2020 21:03:53 -0400
Subject: Finish remove utils.data

utils.data now lives in the esodata project; not in this one
---
 base/src/main/java/bjc/utils/data/Lazy.java | 201 ----------------------------
 1 file changed, 201 deletions(-)
 delete mode 100644 base/src/main/java/bjc/utils/data/Lazy.java

(limited to 'base/src/main/java/bjc/utils/data/Lazy.java')

diff --git a/base/src/main/java/bjc/utils/data/Lazy.java b/base/src/main/java/bjc/utils/data/Lazy.java
deleted file mode 100644
index 4ffcead..0000000
--- a/base/src/main/java/bjc/utils/data/Lazy.java
+++ /dev/null
@@ -1,201 +0,0 @@
-package bjc.utils.data;
-
-import java.util.function.Function;
-import java.util.function.Supplier;
-import java.util.function.UnaryOperator;
-
-import bjc.utils.data.internals.BoundLazy;
-import bjc.utils.funcdata.FunctionalList;
-import bjc.utils.funcdata.IList;
-
-/**
- * A holder that holds a means to create a value, but doesn't actually compute
- * the value until it's needed.
- *
- * @author ben
- *
- * @param <ContainedType>
- *        The type of the value being held.
- */
-public class Lazy<ContainedType> implements IHolder<ContainedType> {
-	/* The supplier of the type. */
-	private Supplier<ContainedType> valueSupplier;
-	/* The actual type value. */
-	private ContainedType heldValue;
-	/* Whether the value has been created. */
-	private boolean valueMaterialized;
-
-	/* The list of pending actions on the value. */
-	private IList<UnaryOperator<ContainedType>> actions = new FunctionalList<>();
-
-	/**
-	 * Create a new lazy value from the specified seed value.
-	 *
-	 * @param value
-	 *        The seed value to use.
-	 */
-	public Lazy(final ContainedType value) {
-		heldValue = value;
-
-		valueMaterialized = true;
-	}
-
-	/**
-	 * Create a new lazy value from the specified value source.
-	 *
-	 * @param supp
-	 *        The source of a value to use.
-	 */
-	public Lazy(final Supplier<ContainedType> supp) {
-		valueSupplier = new SingleSupplier<>(supp);
-
-		valueMaterialized = false;
-	}
-
-	/* Create a new value from a supplier and a list of actions. */
-	private Lazy(final Supplier<ContainedType> supp, final IList<UnaryOperator<ContainedType>> pendingActions) {
-		valueSupplier = supp;
-
-		actions = pendingActions;
-	}
-
-	@Override
-	public <BoundType> IHolder<BoundType> bind(final Function<ContainedType, IHolder<BoundType>> binder) {
-		final IList<UnaryOperator<ContainedType>> pendingActions = new FunctionalList<>();
-
-		actions.forEach(pendingActions::add);
-
-		final Supplier<ContainedType> supplier = () -> {
-			if(valueMaterialized) return heldValue;
-
-			return valueSupplier.get();
-		};
-
-		return new BoundLazy<>(() -> {
-			return new Lazy<>(supplier, pendingActions);
-		}, binder);
-	}
-
-	@Override
-	public <NewType> Function<ContainedType, IHolder<NewType>> lift(final Function<ContainedType, NewType> func) {
-		return val -> {
-			return new Lazy<>(func.apply(val));
-		};
-	}
-
-	@Override
-	public <MappedType> IHolder<MappedType> map(final Function<ContainedType, MappedType> mapper) {
-		final IList<UnaryOperator<ContainedType>> pendingActions = new FunctionalList<>();
-
-		actions.forEach(pendingActions::add);
-
-		return new Lazy<>(() -> {
-			ContainedType currVal = heldValue;
-
-			if(!valueMaterialized) {
-				currVal = valueSupplier.get();
-			}
-
-			return pendingActions.reduceAux(currVal, UnaryOperator<ContainedType>::apply,
-					value -> mapper.apply(value));
-		});
-	}
-
-	@Override
-	public String toString() {
-		if(valueMaterialized) {
-			if(actions.isEmpty()) {
-				return String.format("value[v='%s']", heldValue);
-			}
-
-			return String.format("value[v='%s'] (has pending transforms)", heldValue);
-		}
-
-		return "(unmaterialized)";
-	}
-
-	@Override
-	public IHolder<ContainedType> transform(final UnaryOperator<ContainedType> transformer) {
-		actions.add(transformer);
-
-		return this;
-	}
-
-	@Override
-	public <UnwrappedType> UnwrappedType unwrap(final Function<ContainedType, UnwrappedType> unwrapper) {
-		if(!valueMaterialized) {
-			heldValue = valueSupplier.get();
-
-			valueMaterialized = true;
-		}
-
-		actions.forEach(action -> {
-			heldValue = action.apply(heldValue);
-		});
-
-		actions = new FunctionalList<>();
-
-		return unwrapper.apply(heldValue);
-	}
-
-	@Override
-	public int hashCode() {
-		final int prime = 31;
-		int result = 1;
-
-		result = prime * result + (actions == null ? 0 : actions.hashCode());
-		result = prime * result + (heldValue == null ? 0 : heldValue.hashCode());
-		result = prime * result + (valueMaterialized ? 1231 : 1237);
-
-		return result;
-	}
-
-	@Override
-	public boolean equals(final Object obj) {
-		if(this == obj) return true;
-		if(obj == null) return false;
-		if(!(obj instanceof Lazy<?>)) return false;
-
-		final Lazy<?> other = (Lazy<?>) obj;
-
-		if(valueMaterialized != other.valueMaterialized) return false;
-
-		if(valueMaterialized) {
-			if(heldValue == null) {
-				if(other.heldValue != null) return false;
-			} else if(!heldValue.equals(other.heldValue)) return false;
-		} else
-			return false;
-
-		if(actions == null) {
-			if(other.actions != null) return false;
-		} else if(actions.getSize() > 0 || other.actions.getSize() > 0) return false;
-
-		return true;
-	}
-
-	/**
-	 * Create a new lazy container with an already present value.
-	 *
-	 * @param val
-	 *        The value for the lazy container.
-	 *
-	 * @return A new lazy container holding that value.
-	 */
-	public static <ContainedType> Lazy<ContainedType> lazy(final ContainedType val) {
-		return new Lazy<>(val);
-	}
-
-	/**
-	 * Create a new lazy container with a suspended value.
-	 *
-	 * @param supp
-	 *        The suspended value for the lazy container.
-	 *
-	 * @return A new lazy container that will un-suspend the value when
-	 *         necessary.
-	 */
-	public static <ContainedType> Lazy<ContainedType> lazy(final Supplier<ContainedType> supp) {
-		return new Lazy<>(supp);
-	}
-}
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