From 01cb9f504c860bc1c037a44f3a76bf342a293d46 Mon Sep 17 00:00:00 2001
From: bculkin2442 <bjculkin@mix.wvu.edu>
Date: Tue, 22 Mar 2016 12:28:35 -0400
Subject: General formatting cleanup and documentation update

---
 .../java/bjc/utils/dice/ast/DiceASTFreezer.java    | 65 ++++++++++++++++++----
 1 file changed, 55 insertions(+), 10 deletions(-)

(limited to 'BJC-Utils2/src/main/java/bjc/utils/dice/ast/DiceASTFreezer.java')

diff --git a/BJC-Utils2/src/main/java/bjc/utils/dice/ast/DiceASTFreezer.java b/BJC-Utils2/src/main/java/bjc/utils/dice/ast/DiceASTFreezer.java
index 04cc99b..efe37c0 100644
--- a/BJC-Utils2/src/main/java/bjc/utils/dice/ast/DiceASTFreezer.java
+++ b/BJC-Utils2/src/main/java/bjc/utils/dice/ast/DiceASTFreezer.java
@@ -4,7 +4,52 @@ import java.util.Map;
 
 import bjc.utils.parserutils.AST;
 
+/**
+ * Freeze references in a dice AST, replacing variable references with what
+ * the variables refer to
+ * 
+ * @author ben
+ *
+ */
 public class DiceASTFreezer {
+	/**
+	 * Expand a reference
+	 * 
+	 * @param vnode
+	 *            The node containing the reference to expand
+	 * @param env
+	 *            The enviroment to expand against
+	 * @return The expanded reference
+	 */
+	private static AST<IDiceASTNode> expandNode(VariableDiceNode vnode,
+			Map<String, AST<IDiceASTNode>> env) {
+		return env.get(vnode.getVariable());
+	}
+
+	/**
+	 * Expand a reference
+	 * 
+	 * @param vnode
+	 *            The node containing the reference to expand
+	 * @param env
+	 *            The enviroment to expand against
+	 * @return The expanded reference
+	 */
+	private static AST<IDiceASTNode> expandNode2(VariableDiceNode vnode,
+			Map<String, DiceASTExpression> env) {
+		return env.get(vnode.getVariable()).getAst();
+	}
+
+	/**
+	 * Freeze the references in an AST
+	 * 
+	 * @param tree
+	 *            The tree to freeze references in
+	 * @param env
+	 *            The enviroment to get reference values from
+	 * @return The tree with references frozen
+	 */
+	@SuppressWarnings("unused")
 	public static AST<IDiceASTNode> freezeAST(AST<IDiceASTNode> tree,
 			Map<String, AST<IDiceASTNode>> env) {
 		return tree.collapse((nod) -> {
@@ -20,6 +65,16 @@ public class DiceASTFreezer {
 		} , (r) -> r);
 	}
 
+	/**
+	 * Freeze the references in an expression backed by an AST
+	 * 
+	 * @param tree
+	 *            The tree-backed expression to freeze references in
+	 * @param env
+	 *            The enviroment to get reference values from
+	 * @return The tree with references frozen
+	 */
+	@SuppressWarnings("unused")
 	public static AST<IDiceASTNode> freezeAST(DiceASTExpression tree,
 			Map<String, DiceASTExpression> env) {
 		return tree.getAst().collapse((nod) -> {
@@ -34,14 +89,4 @@ public class DiceASTFreezer {
 			return new AST<IDiceASTNode>(op, left, right);
 		} , (r) -> r);
 	}
-
-	private static AST<IDiceASTNode> expandNode(VariableDiceNode vnode,
-			Map<String, AST<IDiceASTNode>> env) {
-		return env.get(vnode.getVariable());
-	}
-
-	private static AST<IDiceASTNode> expandNode2(VariableDiceNode vnode,
-			Map<String, DiceASTExpression> env) {
-		return env.get(vnode.getVariable()).getAst();
-	}
 }
-- 
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