1 files changed, 78 insertions, 0 deletions
diff --git a/src/proguard/GetSignatureChecker.java b/src/proguard/GetSignatureChecker.java
new file mode 100644
index 0000000..510d833
--- /dev/null
+++ b/src/proguard/GetSignatureChecker.java
@@ -0,0 +1,78 @@
+/*
+ * ProGuard -- shrinking, optimization, obfuscation, and preverification
+ *             of Java bytecode.
+ *
+ * Copyright (c) 2002-2014 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.*;
+import proguard.classfile.constant.*;
+import proguard.classfile.constant.visitor.ConstantVisitor;
+import proguard.classfile.util.*;
+
+/**
+ * This constant visitor checks whether visited method references try to
+ * access signatures.
+ *
+ * @author Eric Lafortune
+ */
+public class GetSignatureChecker
+extends      SimplifiedVisitor
+implements   ConstantVisitor
+{
+    private final WarningPrinter notePrinter;
+
+
+    /**
+     * Creates a new GetSignatureChecker.
+     */
+    public GetSignatureChecker(WarningPrinter notePrinter)
+    {
+        this.notePrinter = notePrinter;
+    }
+
+
+    // Implementations for ConstantVisitor.
+
+    public void visitAnyConstant(Clazz clazz, Constant constant) {}
+
+
+    public void visitMethodrefConstant(Clazz clazz, MethodrefConstant methodrefConstant)
+    {
+        String className = methodrefConstant.getClassName(clazz);
+
+        if (className.equals(ClassConstants.NAME_JAVA_LANG_CLASS)         ||
+            className.equals(ClassConstants.NAME_JAVA_LANG_REFLECT_FIELD) ||
+            className.equals(ClassConstants.NAME_JAVA_LANG_REFLECT_METHOD))
+        {
+            String methodName = methodrefConstant.getName(clazz);
+
+            if (methodName.startsWith(ClassConstants.METHOD_NAME_GET_TYPE_PREFIX) ||
+                methodName.startsWith(ClassConstants.METHOD_NAME_GET_GENERIC_PREFIX))
+            {
+                notePrinter.print(clazz.getName(),
+                                  "Note: " +
+                                  ClassUtil.externalClassName(clazz.getName()) +
+                                  " calls '" +
+                                  ClassUtil.externalShortClassName(ClassUtil.externalClassName(className)) +
+                                  "." +
+                                  methodName + "'");
+            }
+        }
+    }
+}