1 files changed, 89 insertions, 0 deletions
diff --git a/src/proguard/classfile/util/StringReferenceInitializer.java b/src/proguard/classfile/util/StringReferenceInitializer.java
new file mode 100644
index 0000000..3884a04
--- /dev/null
+++ b/src/proguard/classfile/util/StringReferenceInitializer.java
@@ -0,0 +1,89 @@
+/*
+ * 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.util;
+
+import proguard.classfile.*;
+import proguard.classfile.constant.*;
+import proguard.classfile.constant.visitor.ConstantVisitor;
+
+/**
+ * This ConstantVisitor initializes any class references of all string constants
+ * it visits. More specifically, it fills out the references of string constant
+ * pool entries that happen to refer to a class in the program class pool or in
+ * the library class pool.
+ *
+ * @author Eric Lafortune
+ */
+public class StringReferenceInitializer
+extends      SimplifiedVisitor
+implements   ConstantVisitor
+{
+    private final ClassPool programClassPool;
+    private final ClassPool libraryClassPool;
+
+
+    /**
+     * Creates a new StringReferenceInitializer.
+     */
+    public StringReferenceInitializer(ClassPool programClassPool,
+                                      ClassPool libraryClassPool)
+    {
+        this.programClassPool = programClassPool;
+        this.libraryClassPool = libraryClassPool;
+    }
+
+
+    // Implementations for ConstantVisitor.
+
+    public void visitAnyConstant(Clazz clazz, Constant constant) {}
+
+
+    public void visitStringConstant(Clazz clazz, StringConstant stringConstant)
+    {
+        if (stringConstant.referencedClass == null)
+        {
+            // See if we can find the referenced class.
+            stringConstant.referencedClass =
+                findClass(ClassUtil.internalClassName(stringConstant.getString(clazz)));
+        }
+    }
+
+
+    // Small utility methods.
+
+    /**
+     * Returns the class with the given name, either for the program class pool
+     * or from the library class pool, or <code>null</code> if it can't be found.
+     */
+    private Clazz findClass(String name)
+    {
+        // First look for the class in the program class pool.
+        Clazz clazz = programClassPool.getClass(name);
+
+        // Otherwise look for the class in the library class pool.
+        if (clazz == null)
+        {
+            clazz = libraryClassPool.getClass(name);
+        }
+
+        return clazz;
+    }
+}
+\ No newline at end of file