1 files changed, 88 insertions, 0 deletions
diff --git a/src/proguard/KeepClassMemberChecker.java b/src/proguard/KeepClassMemberChecker.java
new file mode 100644
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+++ b/src/proguard/KeepClassMemberChecker.java
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+/*
+ * ProGuard -- shrinking, optimization, obfuscation, and preverification
+ *             of Java bytecode.
+ *
+ * Copyright (c) 2002-2013 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;
+
+import proguard.classfile.util.*;
+import proguard.classfile.visitor.ClassVisitor;
+
+import java.util.List;
+
+/**
+ * This class checks if the user has forgotten to specify class members in
+ * some keep options in the configuration.
+ *
+ * @author Eric Lafortune
+ */
+public class KeepClassMemberChecker
+extends      SimplifiedVisitor
+implements   ClassVisitor
+{
+    private final WarningPrinter notePrinter;
+
+
+    /**
+     * Creates a new KeepClassMemberChecker.
+     */
+    public KeepClassMemberChecker(WarningPrinter notePrinter)
+    {
+        this.notePrinter = notePrinter;
+    }
+
+
+    /**
+     * Checks if the given class specifications try to keep class members
+     * without actually specifying any, printing notes if necessary. Returns
+     * the number of notes printed.
+     */
+    public void checkClassSpecifications(List keepClassSpecifications)
+    {
+        if (keepClassSpecifications != null)
+        {
+            for (int index = 0; index < keepClassSpecifications.size(); index++)
+            {
+                KeepClassSpecification keepClassSpecification =
+                    (KeepClassSpecification)keepClassSpecifications.get(index);
+
+                if (!keepClassSpecification.markClasses                      &&
+                    (keepClassSpecification.fieldSpecifications  == null ||
+                     keepClassSpecification.fieldSpecifications.size() == 0) &&
+                    (keepClassSpecification.methodSpecifications == null ||
+                     keepClassSpecification.methodSpecifications.size() == 0))
+                {
+                    String className = keepClassSpecification.className;
+                    if (className == null)
+                    {
+                        className = keepClassSpecification.extendsClassName;
+                    }
+
+                    if (notePrinter.accepts(className))
+                    {
+                        notePrinter.print(className,
+                                          "Note: the configuration doesn't specify which class members to keep for class '" +
+                                          (className == null ?
+                                              ConfigurationConstants.ANY_CLASS_KEYWORD :
+                                              ClassUtil.externalClassName(className)) + "'");
+                    }
+                }
+            }
+        }
+    }
+}