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Diffstat (limited to 'base/src/main/java/bjc/utils/esodata/SpaghettiStack.java')
-rw-r--r--base/src/main/java/bjc/utils/esodata/SpaghettiStack.java102
1 files changed, 0 insertions, 102 deletions
diff --git a/base/src/main/java/bjc/utils/esodata/SpaghettiStack.java b/base/src/main/java/bjc/utils/esodata/SpaghettiStack.java
deleted file mode 100644
index 8f2924b..0000000
--- a/base/src/main/java/bjc/utils/esodata/SpaghettiStack.java
+++ /dev/null
@@ -1,102 +0,0 @@
-package bjc.utils.esodata;
-
-import java.util.Arrays;
-import java.util.stream.Stream;
-
-/**
- * Implements a spaghetti stack, which is a stack that is branched off of a
- * parent stack.
- *
- * @param <T>
- * The datatype stored in the stack.
- *
- * @author Ben Culkin
- */
-class SpaghettiStack<T> extends Stack<T> {
- /* Our backing stack. */
- private final Stack<T> backing;
- /* The stack we branched off of. */
- private final Stack<T> parent;
-
- /**
- * Create a new empty spaghetti stack, off of the specified parent.
- *
- * @param par
- * The parent stack
- */
- public SpaghettiStack(final Stack<T> par) {
- backing = new SimpleStack<>();
-
- parent = par;
- }
-
- @Override
- public void push(final T elm) {
- backing.push(elm);
- }
-
- @Override
- public T pop() {
- if(backing.empty()) return parent.pop();
-
- return backing.pop();
- }
-
- @Override
- public T top() {
- if(backing.empty()) return parent.top();
-
- return backing.top();
- }
-
- @Override
- public int size() {
- return parent.size() + backing.size();
- }
-
- @Override
- public boolean empty() {
- return backing.empty() && parent.empty();
- }
-
- @SuppressWarnings("unchecked")
- @Override
- public T[] toArray() {
- return (T[]) Stream.concat(Arrays.stream(parent.toArray()), Arrays.stream(backing.toArray())).toArray();
- }
-
- @Override
- public int hashCode() {
- final int prime = 31;
-
- int result = 1;
- result = prime * result + (backing == null ? 0 : backing.hashCode());
- result = prime * result + (parent == null ? 0 : parent.hashCode());
-
- return result;
- }
-
- @Override
- public boolean equals(final Object obj) {
- if(this == obj) return true;
- if(obj == null) return false;
- if(!(obj instanceof SpaghettiStack<?>)) return false;
-
- final SpaghettiStack<?> other = (SpaghettiStack<?>) obj;
-
- if(backing == null) {
- if(other.backing != null) return false;
- } else if(!backing.equals(other.backing)) return false;
-
- if(parent == null) {
- if(other.parent != null) return false;
- } else if(!parent.equals(other.parent)) return false;
-
- return true;
- }
-
- @Override
- public String toString() {
- return String.format("SpaghettiStack [backing=%s, parent=%s]", backing, parent);
- }
-}