From 780a3da69b66921fb7bf7b5779fb44830bb45ddc Mon Sep 17 00:00:00 2001
From: Ben Culkin <scorpress@gmail.com>
Date: Tue, 7 Apr 2020 21:21:12 -0400
Subject: Remove utils.esodata

utils.esodata now also lives in the esodata project; not here
---
 .../main/java/bjc/utils/esodata/PushdownMap.java   | 158 ---------------------
 1 file changed, 158 deletions(-)
 delete mode 100644 base/src/main/java/bjc/utils/esodata/PushdownMap.java

(limited to 'base/src/main/java/bjc/utils/esodata/PushdownMap.java')

diff --git a/base/src/main/java/bjc/utils/esodata/PushdownMap.java b/base/src/main/java/bjc/utils/esodata/PushdownMap.java
deleted file mode 100644
index 35dcf2d..0000000
--- a/base/src/main/java/bjc/utils/esodata/PushdownMap.java
+++ /dev/null
@@ -1,158 +0,0 @@
-package bjc.utils.esodata;
-
-import java.util.function.BiConsumer;
-import java.util.function.Consumer;
-import java.util.function.Function;
-
-import bjc.utils.funcdata.FunctionalMap;
-import bjc.utils.funcdata.IList;
-import bjc.utils.funcdata.IMap;
-
-/**
- * A variant of a map where inserting a duplicate key shadows the existing value
- * instead of replacing it.
- *
- * This could be useful for things like variable scopes.
- *
- * @author EVE
- *
- * @param <KeyType>
- *        The key of the map.
- *
- * @param <ValueType>
- *        The values in the map.
- */
-public class PushdownMap<KeyType, ValueType> implements IMap<KeyType, ValueType> {
-	/* Our backing storage. */
-	private final IMap<KeyType, Stack<ValueType>> backing;
-
-	/** Create a new empty stack-based map. */
-	public PushdownMap() {
-		backing = new FunctionalMap<>();
-	}
-
-	/** Create a new empty stack-based map using the specified backing. */
-	private PushdownMap(final IMap<KeyType, Stack<ValueType>> back) {
-		backing = back;
-	}
-
-	@Override
-	public void clear() {
-		backing.clear();
-	}
-
-	@Override
-	public boolean containsKey(final KeyType key) {
-		return backing.containsKey(key);
-	}
-
-	@Override
-	public IMap<KeyType, ValueType> extend() {
-		return new PushdownMap<>(backing.extend());
-	}
-
-	@Override
-	public void forEach(final BiConsumer<KeyType, ValueType> action) {
-		backing.forEach((key, stk) -> action.accept(key, stk.top()));
-	}
-
-	@Override
-	public void forEachKey(final Consumer<KeyType> action) {
-		backing.forEachKey(action);
-	}
-
-	@Override
-	public void forEachValue(final Consumer<ValueType> action) {
-		backing.forEachValue(stk -> action.accept(stk.top()));
-	}
-
-	@Override
-	public ValueType get(final KeyType key) {
-		return backing.get(key).top();
-	}
-
-	@Override
-	public int size() {
-		return backing.size();
-	}
-
-	@Override
-	public IList<KeyType> keyList() {
-		return backing.keyList();
-	}
-
-	@Override
-	public <V2> IMap<KeyType, V2> transform(final Function<ValueType, V2> transformer) {
-		/*
-		 * @NOTE Can and should we support this? More to the point,
-		 * maybe this should be a map sub-type that does what it needs
-		 * to?
-		 */
-		throw new UnsupportedOperationException("Cannot transform pushdown maps.");
-	}
-
-	@Override
-	public ValueType put(final KeyType key, final ValueType val) {
-		if(backing.containsKey(key)) {
-			final Stack<ValueType> stk = backing.get(key);
-
-			final ValueType vl = stk.top();
-
-			stk.push(val);
-
-			return vl;
-		}
-
-		final Stack<ValueType> stk = new SimpleStack<>();
-
-		stk.push(val);
-
-		return null;
-	}
-
-	@Override
-	public ValueType remove(final KeyType key) {
-		final Stack<ValueType> stk = backing.get(key);
-
-		if(stk.size() > 1) {
-			return stk.pop();
-		}
-
-		return backing.remove(key).top();
-	}
-
-	@Override
-	public IList<ValueType> valueList() {
-		return backing.valueList().map(Stack::top);
-	}
-
-	@Override
-	public int hashCode() {
-		final int prime = 31;
-
-		int result = 1;
-		result = prime * result + (backing == null ? 0 : backing.hashCode());
-
-		return result;
-	}
-
-	@Override
-	public boolean equals(final Object obj) {
-		if(this == obj) return true;
-		if(obj == null) return false;
-		if(!(obj instanceof PushdownMap<?, ?>)) return false;
-
-		final PushdownMap<?, ?> other = (PushdownMap<?, ?>) obj;
-
-		if(backing == null) {
-			if(other.backing != null) return false;
-		} else if(!backing.equals(other.backing)) return false;
-
-		return true;
-	}
-
-	@Override
-	public String toString() {
-		return String.format("PushdownMap [backing=%s]", backing);
-	}
-}
-- 
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