1 files changed, 99 insertions, 0 deletions
diff --git a/tools/external/asm/org/objectweb/asm/commons/StaticInitMerger.java b/tools/external/asm/org/objectweb/asm/commons/StaticInitMerger.java
new file mode 100644
index 000000000..9aabe44ca
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+++ b/tools/external/asm/org/objectweb/asm/commons/StaticInitMerger.java
@@ -0,0 +1,99 @@
+/***
+ * ASM: a very small and fast Java bytecode manipulation framework
+ * Copyright (c) 2000-2005 INRIA, France Telecom
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the copyright holders nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package org.objectweb.asm.commons;
+
+import org.objectweb.asm.ClassAdapter;
+import org.objectweb.asm.ClassVisitor;
+import org.objectweb.asm.MethodVisitor;
+import org.objectweb.asm.Opcodes;
+
+/**
+ * A {@link ClassAdapter} that merges clinit methods into a single one.
+ * 
+ * @author Eric Bruneton
+ */
+public class StaticInitMerger extends ClassAdapter {
+
+    private String name;
+
+    private MethodVisitor clinit;
+
+    private String prefix;
+
+    private int counter;
+
+    public StaticInitMerger(final String prefix, final ClassVisitor cv) {
+        super(cv);
+        this.prefix = prefix;
+    }
+
+    public void visit(
+        final int version,
+        final int access,
+        final String name,
+        final String signature,
+        final String superName,
+        final String[] interfaces)
+    {
+        cv.visit(version, access, name, signature, superName, interfaces);
+        this.name = name;
+    }
+
+    public MethodVisitor visitMethod(
+        final int access,
+        final String name,
+        final String desc,
+        final String signature,
+        final String[] exceptions)
+    {
+        MethodVisitor mv;
+        if (name.equals("<clinit>")) {
+            int a = Opcodes.ACC_PRIVATE + Opcodes.ACC_STATIC;
+            String n = prefix + counter++;
+            mv = cv.visitMethod(a, n, desc, signature, exceptions);
+
+            if (clinit == null) {
+                clinit = cv.visitMethod(a, name, desc, null, null);
+            }
+            clinit.visitMethodInsn(Opcodes.INVOKESTATIC, this.name, n, desc);
+        } else {
+            mv = cv.visitMethod(access, name, desc, signature, exceptions);
+        }
+        return mv;
+    }
+
+    public void visitEnd() {
+        if (clinit != null) {
+            clinit.visitInsn(Opcodes.RETURN);
+            clinit.visitMaxs(0, 0);
+        }
+        cv.visitEnd();
+    }
+}