From 66c092d1d1aa0af9d884fc07977d00283cca6c78 Mon Sep 17 00:00:00 2001
From: jochen <jochen@379699f6-c40d-0410-875b-85095c16579e>
Date: Mon, 8 Mar 1999 12:12:42 +0000
Subject: [PATCH] check for dead code and warn verbosely in mapStackToLocal

git-svn-id: https://svn.code.sf.net/p/jode/code/trunk@344 379699f6-c40d-0410-875b-85095c16579e
---
 jode/jode/flow/SequentialBlock.java | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/jode/jode/flow/SequentialBlock.java b/jode/jode/flow/SequentialBlock.java
index dc4e140..c1dc8ad 100644
--- a/jode/jode/flow/SequentialBlock.java
+++ b/jode/jode/flow/SequentialBlock.java
@@ -59,8 +59,12 @@ public class SequentialBlock extends StructuredBlock {
      * @return stack the stack afterwards.
      */
     public VariableStack mapStackToLocal(VariableStack stack) {
-	return subBlocks[1].mapStackToLocal
-	    (subBlocks[0].mapStackToLocal(stack));
+	VariableStack middle = subBlocks[0].mapStackToLocal(stack);
+	if (middle != null)
+	    // Otherwise the second block is at least "logical" dead code
+	    return subBlocks[1].mapStackToLocal(middle);
+	jode.Decompiler.err.println("Dead code after Block " + subBlocks[0]);
+	return null;
     }
 
     /**