1 files changed, 93 insertions, 0 deletions
diff --git a/src/proguard/classfile/attribute/preverification/StackMapTableAttribute.java b/src/proguard/classfile/attribute/preverification/StackMapTableAttribute.java
new file mode 100644
index 0000000..0cddf70
--- /dev/null
+++ b/src/proguard/classfile/attribute/preverification/StackMapTableAttribute.java
@@ -0,0 +1,93 @@
+/*
+ * 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.preverification;
+
+import proguard.classfile.*;
+import proguard.classfile.attribute.*;
+import proguard.classfile.attribute.preverification.visitor.StackMapFrameVisitor;
+import proguard.classfile.attribute.visitor.AttributeVisitor;
+
+/**
+ * This Attribute represents a stack map table attribute.
+ *
+ * @author Eric Lafortune
+ */
+public class StackMapTableAttribute extends Attribute
+{
+    public int             u2stackMapFramesCount;
+    public StackMapFrame[] stackMapFrames;
+
+
+    /**
+     * Creates an uninitialized StackMapTableAttribute.
+     */
+    public StackMapTableAttribute()
+    {
+    }
+
+
+    /**
+     * Creates a StackMapTableAttribute with the given stack map frames.
+     */
+    public StackMapTableAttribute(StackMapFrame[] stackMapFrames)
+    {
+        this(stackMapFrames.length, stackMapFrames);
+    }
+
+
+    /**
+     * Creates a StackMapTableAttribute with the given stack map frames.
+     */
+    public StackMapTableAttribute(int             stackMapFramesCount,
+                                  StackMapFrame[] stackMapFrames)
+    {
+        this.u2stackMapFramesCount = stackMapFramesCount;
+        this.stackMapFrames        = stackMapFrames;
+    }
+
+
+    // Implementations for Attribute.
+
+    public void accept(Clazz clazz, Method method, CodeAttribute codeAttribute, AttributeVisitor attributeVisitor)
+    {
+        attributeVisitor.visitStackMapTableAttribute(clazz, method, codeAttribute, this);
+    }
+
+
+    /**
+     * Applies the given stack map frame visitor to all stack map frames.
+     */
+    public void stackMapFramesAccept(Clazz clazz, Method method, CodeAttribute codeAttribute, StackMapFrameVisitor stackMapFrameVisitor)
+    {
+        int offset = 0;
+
+        for (int index = 0; index < u2stackMapFramesCount; index++)
+        {
+            StackMapFrame stackMapFrame = stackMapFrames[index];
+
+            // Note that the byte code offset is computed differently for the
+            // first stack map frame.
+            offset += stackMapFrame.getOffsetDelta() + (index == 0 ? 0 : 1);
+
+            stackMapFrame.accept(clazz, method, codeAttribute, offset, stackMapFrameVisitor);
+        }
+    }
+}