1 files changed, 7 insertions, 1 deletions
diff --git a/BJC-Utils2/src/main/java/bjc/utils/ioutils/blocks/PushbackBlockReader.java b/BJC-Utils2/src/main/java/bjc/utils/ioutils/blocks/PushbackBlockReader.java
index d7ba247..0cc9dea 100644
--- a/BJC-Utils2/src/main/java/bjc/utils/ioutils/blocks/PushbackBlockReader.java
+++ b/BJC-Utils2/src/main/java/bjc/utils/ioutils/blocks/PushbackBlockReader.java
@@ -14,6 +14,9 @@ import java.util.LinkedList;
 public class PushbackBlockReader implements BlockReader {
 	private final BlockReader source;
 
+	/*
+	 * The queue of pushed-back blocks.
+	 */
 	private final Deque<Block> waiting;
 
 	private Block curBlock;
@@ -44,6 +47,9 @@ public class PushbackBlockReader implements BlockReader {
 
 	@Override
 	public boolean nextBlock() {
+		/*
+		 * Drain pushed-back blocks first.
+		 */
 		if (!waiting.isEmpty()) {
 			curBlock = waiting.pop();
 
@@ -97,4 +103,4 @@ public class PushbackBlockReader implements BlockReader {
 		return String.format("PushbackBlockReader [waiting=%s, curBlock=%s, blockNo=%s]", waiting, curBlock,
 				blockNo);
 	}
-}
-\ No newline at end of file
+}