1 files changed, 73 insertions, 0 deletions
diff --git a/src/proguard/optimize/info/SideEffectMethodFilter.java b/src/proguard/optimize/info/SideEffectMethodFilter.java
new file mode 100644
index 0000000..52e072a
--- /dev/null
+++ b/src/proguard/optimize/info/SideEffectMethodFilter.java
@@ -0,0 +1,73 @@
+/*
+ * 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.optimize.info;
+
+import proguard.classfile.*;
+import proguard.classfile.visitor.MemberVisitor;
+
+/**
+ * This MemberVisitor delegates all its method calls to another MemberVisitor,
+ * but only for Method objects that are marked as having side effects.
+ *
+ * @see SideEffectMethodMarker
+ *
+ * @author Eric Lafortune
+ */
+public class SideEffectMethodFilter
+implements   MemberVisitor
+{
+    private final MemberVisitor memberVisitor;
+
+
+    /**
+     * Creates a new SideEffectMethodFilter.
+     * @param memberVisitor the member visitor to which the visiting will be
+     *                      delegated.
+     */
+    public SideEffectMethodFilter(MemberVisitor memberVisitor)
+    {
+        this.memberVisitor = memberVisitor;
+    }
+
+
+    // Implementations for MemberVisitor.
+
+    public void visitProgramField(ProgramClass programClass, ProgramField programField) {}
+    public void visitLibraryField(LibraryClass libraryClass, LibraryField libraryField) {}
+
+
+    public void visitProgramMethod(ProgramClass programClass, ProgramMethod programMethod)
+    {
+        if (SideEffectMethodMarker.hasSideEffects(programMethod))
+        {
+            memberVisitor.visitProgramMethod(programClass, programMethod);
+        }
+    }
+
+
+    public void visitLibraryMethod(LibraryClass libraryClass, LibraryMethod libraryMethod)
+    {
+        if (SideEffectMethodMarker.hasSideEffects(libraryMethod))
+        {
+            memberVisitor.visitLibraryMethod(libraryClass, libraryMethod);
+        }
+    }
+}
+\ No newline at end of file