1 files changed, 100 insertions, 0 deletions
diff --git a/src/proguard/classfile/attribute/ExceptionInfo.java b/src/proguard/classfile/attribute/ExceptionInfo.java
new file mode 100644
index 0000000..082efab
--- /dev/null
+++ b/src/proguard/classfile/attribute/ExceptionInfo.java
@@ -0,0 +1,100 @@
+/*
+ * ProGuard -- shrinking, optimization, obfuscation, and preverification
+ *             of Java bytecode.
+ *
+ * Copyright (c) 2002-2009 Eric Lafortune (eric@graphics.cornell.edu)
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+package proguard.classfile.attribute;
+
+import proguard.classfile.VisitorAccepter;
+
+/**
+ * Representation of an Exception table entry.
+ *
+ * @author Eric Lafortune
+ */
+public class ExceptionInfo implements VisitorAccepter
+{
+    public int u2startPC;
+    public int u2endPC;
+    public int u2handlerPC;
+    public int u2catchType;
+
+    /**
+     * An extra field in which visitors can store information.
+     */
+    public Object visitorInfo;
+
+
+    /**
+     * Creates an uninitialized ExceptionInfo.
+     */
+    public ExceptionInfo()
+    {
+        this(0, 0, 0, 0);
+    }
+
+
+    /**
+     * Creates an ExceptionInfo with the given properties.
+     */
+    public ExceptionInfo(int u2startPC,
+                         int u2endPC,
+                         int u2handlerPC,
+                         int u2catchType)
+    {
+        this.u2startPC   = u2startPC;
+        this.u2endPC     = u2endPC;
+        this.u2handlerPC = u2handlerPC;
+        this.u2catchType = u2catchType;
+    }
+
+
+    /**
+     * Returns whether the exception's try block contains the instruction at the
+     * given offset.
+     */
+    public boolean isApplicable(int instructionOffset)
+    {
+        return instructionOffset >= u2startPC &&
+               instructionOffset <  u2endPC;
+    }
+
+
+    /**
+     * Returns whether the exception's try block overlaps with the specified
+     * block of instructions.
+     */
+    public boolean isApplicable(int startOffset, int endOffset)
+    {
+        return u2startPC < endOffset &&
+               u2endPC   > startOffset;
+    }
+
+
+    // Implementations for VisitorAccepter.
+
+    public Object getVisitorInfo()
+    {
+        return visitorInfo;
+    }
+
+    public void setVisitorInfo(Object visitorInfo)
+    {
+        this.visitorInfo = visitorInfo;
+    }
+}