Example usage for org.objectweb.asm MethodVisitor visitFrame

Introduction

In this page you can find the example usage for org.objectweb.asm MethodVisitor visitFrame.

Prototype

public void visitFrame(final int type, final int numLocal, final Object[] local, final int numStack,
        final Object[] stack) 

Source Link

Document

Visits the current state of the local variables and operand stack elements.

Usage

From source file:edu.illinois.nondex.instr.PriorityQueueShufflingAdder.java

License:Open Source License

public void addNext() {
    MethodVisitor mv = super.visitMethod(Opcodes.ACC_PUBLIC, "next", "()Ljava/lang/Object;", "()TE;", null);
    mv.visitCode();//from w  w  w.jav  a 2  s  . c  o m
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, "java/util/PriorityQueue$Itr", "expectedModCount", "I");
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, "java/util/PriorityQueue$Itr", "this$0", "Ljava/util/PriorityQueue;");
    mv.visitFieldInsn(Opcodes.GETFIELD, "java/util/PriorityQueue", "modCount", "I");
    Label l0 = new Label();
    mv.visitJumpInsn(Opcodes.IF_ICMPEQ, l0);
    mv.visitTypeInsn(Opcodes.NEW, "java/util/ConcurrentModificationException");
    mv.visitInsn(Opcodes.DUP);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/util/ConcurrentModificationException", "<init>", "()V",
            false);
    mv.visitInsn(Opcodes.ATHROW);
    mv.visitLabel(l0);
    mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, "java/util/PriorityQueue$Itr", "iter", "Ljava/util/Iterator;");
    mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/Iterator", "next", "()Ljava/lang/Object;", true);
    mv.visitFieldInsn(Opcodes.PUTFIELD, "java/util/PriorityQueue$Itr", "lastRetElt", "Ljava/lang/Object;");
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitInsn(Opcodes.ICONST_M1);
    mv.visitFieldInsn(Opcodes.PUTFIELD, "java/util/PriorityQueue$Itr", "lastRet", "I");
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, "java/util/PriorityQueue$Itr", "lastRetElt", "Ljava/lang/Object;");
    mv.visitInsn(Opcodes.ARETURN);
    mv.visitMaxs(2, 1);
    mv.visitEnd();
}

---

From source file:edu.illinois.nondex.instr.WeakHashMapShufflingAdder.java

License:Open Source License

public void addNextEntry() {
    MethodVisitor mv = super.visitMethod(Opcodes.ACC_PUBLIC, "nextEntry", "()Ljava/util/WeakHashMap$Entry;",
            "()Ljava/util/WeakHashMap$Entry<TK;TV;>;", null);
    mv.visitCode();// w  w  w  .  jav  a2 s .  c om
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, "java/util/WeakHashMap$HashIterator", "this$0",
            "Ljava/util/WeakHashMap;");
    mv.visitFieldInsn(Opcodes.GETFIELD, "java/util/WeakHashMap", "modCount", "I");
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, "java/util/WeakHashMap$HashIterator", "expectedModCount", "I");
    Label l0 = new Label();
    mv.visitJumpInsn(Opcodes.IF_ICMPEQ, l0);
    mv.visitTypeInsn(Opcodes.NEW, "java/util/ConcurrentModificationException");
    mv.visitInsn(Opcodes.DUP);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/util/ConcurrentModificationException", "<init>", "()V",
            false);
    mv.visitInsn(Opcodes.ATHROW);
    mv.visitLabel(l0);
    mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, "java/util/WeakHashMap$HashIterator", "iter", "Ljava/util/Iterator;");
    mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/Iterator", "next", "()Ljava/lang/Object;", true);
    mv.visitTypeInsn(Opcodes.CHECKCAST, "java/util/WeakHashMap$Entry");
    mv.visitFieldInsn(Opcodes.PUTFIELD, "java/util/WeakHashMap$HashIterator", "lastReturned",
            "Ljava/util/WeakHashMap$Entry;");
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, "java/util/WeakHashMap$HashIterator", "lastReturned",
            "Ljava/util/WeakHashMap$Entry;");
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/util/WeakHashMap$Entry", "get", "()Ljava/lang/Object;",
            false);
    mv.visitFieldInsn(Opcodes.PUTFIELD, "java/util/WeakHashMap$HashIterator", "currentKey",
            "Ljava/lang/Object;");
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, "java/util/WeakHashMap$HashIterator", "lastReturned",
            "Ljava/util/WeakHashMap$Entry;");
    mv.visitInsn(Opcodes.ARETURN);
    mv.visitMaxs(2, 1);
    mv.visitEnd();
}

---

From source file:io.github.btpka3.asm.H.java

public static byte[] dump() throws Exception {

    ClassWriter cw = new ClassWriter(0);
    FieldVisitor fv;//from  ww w  .j a v a2s.c  o m
    MethodVisitor mv;
    AnnotationVisitor av0;

    cw.visit(V1_8, ACC_PUBLIC + ACC_SUPER, "JP/co/esm/caddies/jomt/license/h", null, "java/lang/Object", null);

    {
        fv = cw.visitField(ACC_PUBLIC + ACC_STATIC, "a", "Ljava/lang/String;", null, null);
        fv.visitEnd();
    }
    {
        fv = cw.visitField(ACC_PRIVATE + ACC_STATIC, "b", "Z", null, null);
        fv.visitEnd();
    }
    {
        fv = cw.visitField(ACC_PRIVATE + ACC_FINAL + ACC_STATIC, "c", "Lorg/slf4j/Logger;", null, null);
        fv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
        mv.visitInsn(RETURN);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }

    // public static boolean a()
    {
        mv = cw.visitMethod(ACC_PUBLIC + ACC_STATIC, "a", "()Z", null, null);
        mv.visitCode();
        mv.visitFieldInsn(GETSTATIC, "JP/co/esm/caddies/jomt/license/h", "a", "Ljava/lang/String;");
        mv.visitMethodInsn(INVOKESTATIC, "JP/co/esm/caddies/jomt/license/h", "b", "(Ljava/lang/String;)Z",
                false);
        Label l0 = new Label();
        mv.visitJumpInsn(IFEQ, l0);
        mv.visitFieldInsn(GETSTATIC, "JP/co/esm/caddies/jomt/license/h", "a", "Ljava/lang/String;");
        mv.visitMethodInsn(INVOKESTATIC, "JP/co/esm/caddies/jomt/license/h", "d", "(Ljava/lang/String;)V",
                false);
        mv.visitFieldInsn(GETSTATIC, "JP/co/esm/caddies/jomt/jsystem/c", "q", "Z");
        Label l1 = new Label();
        mv.visitJumpInsn(IFEQ, l1);
        mv.visitFieldInsn(GETSTATIC, "JP/co/esm/caddies/jomt/license/h", "b", "Z");
        Label l2 = new Label();
        mv.visitJumpInsn(IFNE, l2);
        mv.visitLdcInsn("app");
        mv.visitLdcInsn("without_any_license");
        mv.visitMethodInsn(INVOKESTATIC, "JP/co/esm/caddies/jomt/jview/eO", "d",
                "(Ljava/lang/String;Ljava/lang/String;)V", false);
        mv.visitLabel(l2);
        mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        mv.visitInsn(ICONST_1);
        mv.visitFieldInsn(PUTSTATIC, "JP/co/esm/caddies/jomt/license/h", "b", "Z");
        mv.visitLabel(l1);
        mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        mv.visitFieldInsn(GETSTATIC, "JP/co/esm/caddies/jomt/jsystem/c", "q", "Z");
        Label l3 = new Label();
        mv.visitJumpInsn(IFNE, l3);
        mv.visitInsn(ICONST_1);
        Label l4 = new Label();
        mv.visitJumpInsn(GOTO, l4);
        mv.visitLabel(l3);
        mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        mv.visitInsn(ICONST_0);
        mv.visitLabel(l4);
        mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { Opcodes.INTEGER });
        mv.visitInsn(IRETURN);
        mv.visitLabel(l0);
        mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        mv.visitMethodInsn(INVOKESTATIC, "JP/co/esm/caddies/jomt/license/h", "b", "()Ljava/lang/String;",
                false);
        mv.visitVarInsn(ASTORE, 0);
        mv.visitFieldInsn(GETSTATIC, "JP/co/esm/caddies/jomt/license/h", "a", "Ljava/lang/String;");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESTATIC, "JP/co/esm/caddies/jomt/license/h", "a",
                "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;", false);
        mv.visitInsn(POP);
        mv.visitInsn(ICONST_1);
        mv.visitFieldInsn(PUTSTATIC, "JP/co/esm/caddies/jomt/jsystem/c", "p", "Z");
        mv.visitInsn(ICONST_1);
        mv.visitTypeInsn(ANEWARRAY, "java/lang/String");
        mv.visitVarInsn(ASTORE, 1);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitInsn(ICONST_0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESTATIC, "JP/co/esm/caddies/jomt/license/h", "a",
                "(Ljava/lang/String;)Ljava/lang/String;", false);
        mv.visitInsn(AASTORE);
        mv.visitLdcInsn("app");
        mv.visitLdcInsn("license_evaluation_term.message");
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKESTATIC, "JP/co/esm/caddies/jomt/jview/eO", "e",
                "(Ljava/lang/String;Ljava/lang/String;[Ljava/lang/Object;)V", false);
        mv.visitMethodInsn(INVOKESTATIC, "JP/co/esm/caddies/jomt/license/p", "c",
                "()LJP/co/esm/caddies/jomt/license/p;", false);
        mv.visitMethodInsn(INVOKESTATIC, "JP/co/esm/caddies/jomt/jsystem/j", "d", "()Ljava/lang/String;",
                false);
        mv.visitLdcInsn("P");
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/String", "equals", "(Ljava/lang/Object;)Z", false);
        Label l5 = new Label();
        mv.visitJumpInsn(IFEQ, l5);
        mv.visitLdcInsn("astah_professional");
        Label l6 = new Label();
        mv.visitJumpInsn(GOTO, l6);
        mv.visitLabel(l5);
        mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { "JP/co/esm/caddies/jomt/license/p" });
        mv.visitLdcInsn("astah_UML");
        mv.visitLabel(l6);
        mv.visitFrame(Opcodes.F_FULL, 0, new Object[] {}, 2,
                new Object[] { "JP/co/esm/caddies/jomt/license/p", "java/lang/String" });
        mv.visitLdcInsn("USER_TYPE");
        mv.visitLdcInsn("Evaluation");
        mv.visitMethodInsn(INVOKEVIRTUAL, "JP/co/esm/caddies/jomt/license/p", "a",
                "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V", false);
        mv.visitInsn(ICONST_1);
        mv.visitInsn(IRETURN);
        mv.visitMaxs(4, 2);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PRIVATE + ACC_STATIC, "b", "()Ljava/lang/String;", null, null);
        mv.visitCode();
        mv.visitLdcInsn("yyyy/MM/dd");
        mv.visitMethodInsn(INVOKESTATIC, "JP/co/esm/caddies/jomt/jutil/JomtUtilities", "getDateString",
                "(Ljava/lang/String;)Ljava/lang/String;", false);
        mv.visitInsn(ARETURN);
        mv.visitMaxs(1, 0);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PRIVATE + ACC_STATIC, "f", "(Ljava/lang/String;)Ljava/util/GregorianCalendar;",
                null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitInsn(ICONST_0);
        mv.visitInsn(ICONST_4);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/String", "substring", "(II)Ljava/lang/String;", false);
        mv.visitMethodInsn(INVOKESTATIC, "java/lang/Integer", "parseInt", "(Ljava/lang/String;)I", false);
        mv.visitVarInsn(ISTORE, 1);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitInsn(ICONST_5);
        mv.visitIntInsn(BIPUSH, 7);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/String", "substring", "(II)Ljava/lang/String;", false);
        mv.visitMethodInsn(INVOKESTATIC, "java/lang/Integer", "parseInt", "(Ljava/lang/String;)I", false);
        mv.visitInsn(ICONST_1);
        mv.visitInsn(ISUB);
        mv.visitVarInsn(ISTORE, 2);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitIntInsn(BIPUSH, 8);
        mv.visitIntInsn(BIPUSH, 10);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/String", "substring", "(II)Ljava/lang/String;", false);
        mv.visitMethodInsn(INVOKESTATIC, "java/lang/Integer", "parseInt", "(Ljava/lang/String;)I", false);
        mv.visitVarInsn(ISTORE, 3);
        mv.visitTypeInsn(NEW, "java/util/GregorianCalendar");
        mv.visitInsn(DUP);
        mv.visitVarInsn(ILOAD, 1);
        mv.visitVarInsn(ILOAD, 2);
        mv.visitVarInsn(ILOAD, 3);
        mv.visitMethodInsn(INVOKESPECIAL, "java/util/GregorianCalendar", "<init>", "(III)V", false);
        mv.visitInsn(ARETURN);
        mv.visitMaxs(5, 4);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PRIVATE + ACC_STATIC, "c", "()Ljava/util/GregorianCalendar;", null, null);
        mv.visitCode();
        mv.visitMethodInsn(INVOKESTATIC, "JP/co/esm/caddies/jomt/license/h", "b", "()Ljava/lang/String;",
                false);
        mv.visitMethodInsn(INVOKESTATIC, "JP/co/esm/caddies/jomt/license/h", "f",
                "(Ljava/lang/String;)Ljava/util/GregorianCalendar;", false);
        mv.visitInsn(ARETURN);
        mv.visitMaxs(1, 0);
        mv.visitEnd();
    }

    // private static GregorianCalendar g(String var0)
    {
        mv = cw.visitMethod(ACC_PRIVATE + ACC_STATIC, "g", "(Ljava/lang/String;)Ljava/util/GregorianCalendar;",
                null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitInsn(ICONST_0);
        mv.visitInsn(ICONST_4);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/String", "substring", "(II)Ljava/lang/String;", false);
        mv.visitMethodInsn(INVOKESTATIC, "java/lang/Integer", "parseInt", "(Ljava/lang/String;)I", false);
        mv.visitVarInsn(ISTORE, 1);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitInsn(ICONST_5);
        mv.visitIntInsn(BIPUSH, 7);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/String", "substring", "(II)Ljava/lang/String;", false);
        mv.visitMethodInsn(INVOKESTATIC, "java/lang/Integer", "parseInt", "(Ljava/lang/String;)I", false);
        mv.visitInsn(ICONST_1);
        mv.visitInsn(ISUB);
        mv.visitVarInsn(ISTORE, 2);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitIntInsn(BIPUSH, 8);
        mv.visitIntInsn(BIPUSH, 10);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/String", "substring", "(II)Ljava/lang/String;", false);
        mv.visitMethodInsn(INVOKESTATIC, "java/lang/Integer", "parseInt", "(Ljava/lang/String;)I", false);
        mv.visitVarInsn(ISTORE, 3);
        mv.visitMethodInsn(INVOKESTATIC, "JP/co/esm/caddies/jomt/license/h", "c",
                "()Ljava/util/GregorianCalendar;", false);
        mv.visitVarInsn(ASTORE, 4);
        mv.visitVarInsn(ALOAD, 4);
        mv.visitVarInsn(ILOAD, 1);
        mv.visitVarInsn(ILOAD, 2);
        mv.visitVarInsn(ILOAD, 3);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/util/GregorianCalendar", "set", "(III)V", false);
        mv.visitVarInsn(ALOAD, 4);
        mv.visitInsn(ICONST_5);
        //mv.visitIntInsn(BIPUSH, 20);
        mv.visitIntInsn(BIPUSH, 3650);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/util/GregorianCalendar", "add", "(II)V", false);
        mv.visitVarInsn(ALOAD, 4);
        mv.visitInsn(ARETURN);
        mv.visitMaxs(4, 5);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC + ACC_STATIC, "a", "(Ljava/lang/String;)Ljava/lang/String;", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESTATIC, "JP/co/esm/caddies/jomt/license/h", "g",
                "(Ljava/lang/String;)Ljava/util/GregorianCalendar;", false);
        mv.visitVarInsn(ASTORE, 1);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/util/GregorianCalendar", "getTime", "()Ljava/util/Date;",
                false);
        mv.visitVarInsn(ASTORE, 2);
        mv.visitInsn(ICONST_1);
        mv.visitMethodInsn(INVOKESTATIC, "java/text/DateFormat", "getDateInstance", "(I)Ljava/text/DateFormat;",
                false);
        mv.visitVarInsn(ASTORE, 3);
        mv.visitVarInsn(ALOAD, 3);
        mv.visitVarInsn(ALOAD, 2);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/text/DateFormat", "format",
                "(Ljava/util/Date;)Ljava/lang/String;", false);
        mv.visitInsn(ARETURN);
        mv.visitMaxs(2, 4);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC + ACC_STATIC, "b", "(Ljava/lang/String;)Z", null, null);
        mv.visitCode();
        mv.visitTypeInsn(NEW, "java/io/File");
        mv.visitInsn(DUP);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "java/io/File", "<init>", "(Ljava/lang/String;)V", false);
        mv.visitVarInsn(ASTORE, 1);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/File", "exists", "()Z", false);
        Label l0 = new Label();
        mv.visitJumpInsn(IFEQ, l0);
        mv.visitInsn(ICONST_1);
        mv.visitInsn(IRETURN);
        mv.visitLabel(l0);
        mv.visitFrame(Opcodes.F_CHOP, 1, null, 0, null);
        mv.visitInsn(ICONST_0);
        mv.visitInsn(IRETURN);
        mv.visitMaxs(3, 2);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC + ACC_STATIC, "c", "(Ljava/lang/String;)Ljava/lang/String;", null, null);
        mv.visitCode();
        Label l0 = new Label();
        Label l1 = new Label();
        Label l2 = new Label();
        mv.visitTryCatchBlock(l0, l1, l2, "java/lang/Exception");
        mv.visitLdcInsn("");
        mv.visitVarInsn(ASTORE, 1);
        mv.visitInsn(ACONST_NULL);
        mv.visitVarInsn(ASTORE, 2);
        mv.visitLabel(l0);
        mv.visitTypeInsn(NEW, "java/util/zip/GZIPInputStream");
        mv.visitInsn(DUP);
        mv.visitTypeInsn(NEW, "java/io/FileInputStream");
        mv.visitInsn(DUP);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "java/io/FileInputStream", "<init>", "(Ljava/lang/String;)V", false);
        mv.visitMethodInsn(INVOKESPECIAL, "java/util/zip/GZIPInputStream", "<init>", "(Ljava/io/InputStream;)V",
                false);
        mv.visitVarInsn(ASTORE, 2);
        mv.visitTypeInsn(NEW, "java/io/InputStreamReader");
        mv.visitInsn(DUP);
        mv.visitVarInsn(ALOAD, 2);
        mv.visitLdcInsn("UTF-8");
        mv.visitMethodInsn(INVOKESPECIAL, "java/io/InputStreamReader", "<init>",
                "(Ljava/io/InputStream;Ljava/lang/String;)V", false);
        mv.visitVarInsn(ASTORE, 3);
        mv.visitTypeInsn(NEW, "java/io/BufferedReader");
        mv.visitInsn(DUP);
        mv.visitVarInsn(ALOAD, 3);
        mv.visitMethodInsn(INVOKESPECIAL, "java/io/BufferedReader", "<init>", "(Ljava/io/Reader;)V", false);
        mv.visitVarInsn(ASTORE, 4);
        Label l3 = new Label();
        mv.visitLabel(l3);
        mv.visitFrame(Opcodes.F_FULL, 5, new Object[] { Opcodes.TOP, "java/lang/String", Opcodes.TOP,
                Opcodes.TOP, "java/io/BufferedReader" }, 0, new Object[] {});
        mv.visitVarInsn(ALOAD, 4);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/BufferedReader", "readLine", "()Ljava/lang/String;", false);
        mv.visitInsn(DUP);
        mv.visitVarInsn(ASTORE, 5);
        Label l4 = new Label();
        mv.visitJumpInsn(IFNULL, l4);
        mv.visitVarInsn(ALOAD, 5);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/String", "length", "()I", false);
        mv.visitJumpInsn(IFLE, l3);
        mv.visitVarInsn(ALOAD, 5);
        mv.visitVarInsn(ASTORE, 1);
        mv.visitJumpInsn(GOTO, l3);
        mv.visitLabel(l4);
        mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        mv.visitVarInsn(ALOAD, 4);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/BufferedReader", "close", "()V", false);
        mv.visitLabel(l1);
        Label l5 = new Label();
        mv.visitJumpInsn(GOTO, l5);
        mv.visitLabel(l2);
        mv.visitFrame(Opcodes.F_FULL, 0, new Object[] {}, 1, new Object[] { "java/lang/Exception" });
        mv.visitVarInsn(ASTORE, 3);
        mv.visitFieldInsn(GETSTATIC, "JP/co/esm/caddies/jomt/license/h", "c", "Lorg/slf4j/Logger;");
        mv.visitLdcInsn("error has occurred.");
        mv.visitVarInsn(ALOAD, 3);
        mv.visitMethodInsn(INVOKEINTERFACE, "org/slf4j/Logger", "error",
                "(Ljava/lang/String;Ljava/lang/Throwable;)V", true);
        mv.visitInsn(ACONST_NULL);
        mv.visitInsn(ARETURN);
        mv.visitLabel(l5);
        mv.visitFrame(Opcodes.F_APPEND, 2, new Object[] { Opcodes.TOP, "java/lang/String" }, 0, null);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitInsn(ARETURN);
        mv.visitMaxs(5, 6);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC + ACC_STATIC, "a",
                "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;", null, null);
        mv.visitCode();
        Label l0 = new Label();
        Label l1 = new Label();
        Label l2 = new Label();
        mv.visitTryCatchBlock(l0, l1, l2, "java/io/IOException");
        Label l3 = new Label();
        Label l4 = new Label();
        Label l5 = new Label();
        mv.visitTryCatchBlock(l3, l4, l5, "java/lang/Throwable");
        Label l6 = new Label();
        Label l7 = new Label();
        Label l8 = new Label();
        mv.visitTryCatchBlock(l6, l7, l8, "java/io/IOException");
        Label l9 = new Label();
        mv.visitTryCatchBlock(l3, l4, l9, null);
        Label l10 = new Label();
        mv.visitTryCatchBlock(l5, l10, l9, null);
        Label l11 = new Label();
        Label l12 = new Label();
        Label l13 = new Label();
        mv.visitTryCatchBlock(l11, l12, l13, "java/io/IOException");
        Label l14 = new Label();
        mv.visitTryCatchBlock(l9, l14, l9, null);
        mv.visitInsn(ACONST_NULL);
        mv.visitVarInsn(ASTORE, 2);
        mv.visitLabel(l3);
        mv.visitTypeInsn(NEW, "java/io/BufferedWriter");
        mv.visitInsn(DUP);
        mv.visitTypeInsn(NEW, "java/io/OutputStreamWriter");
        mv.visitInsn(DUP);
        mv.visitTypeInsn(NEW, "java/util/zip/GZIPOutputStream");
        mv.visitInsn(DUP);
        mv.visitTypeInsn(NEW, "java/io/FileOutputStream");
        mv.visitInsn(DUP);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "java/io/FileOutputStream", "<init>", "(Ljava/lang/String;)V", false);
        mv.visitMethodInsn(INVOKESPECIAL, "java/util/zip/GZIPOutputStream", "<init>",
                "(Ljava/io/OutputStream;)V", false);
        mv.visitLdcInsn("UTF-8");
        mv.visitMethodInsn(INVOKESPECIAL, "java/io/OutputStreamWriter", "<init>",
                "(Ljava/io/OutputStream;Ljava/lang/String;)V", false);
        mv.visitMethodInsn(INVOKESPECIAL, "java/io/BufferedWriter", "<init>", "(Ljava/io/Writer;)V", false);
        mv.visitVarInsn(ASTORE, 2);
        mv.visitVarInsn(ALOAD, 2);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/BufferedWriter", "write", "(Ljava/lang/String;)V", false);
        mv.visitLabel(l4);
        mv.visitVarInsn(ALOAD, 2);
        Label l15 = new Label();
        mv.visitJumpInsn(IFNULL, l15);
        mv.visitLabel(l0);
        mv.visitVarInsn(ALOAD, 2);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/BufferedWriter", "close", "()V", false);
        mv.visitLabel(l1);
        mv.visitJumpInsn(GOTO, l15);
        mv.visitLabel(l2);
        mv.visitFrame(Opcodes.F_FULL, 0, new Object[] {}, 1, new Object[] { "java/io/IOException" });
        mv.visitVarInsn(ASTORE, 3);
        mv.visitVarInsn(ALOAD, 3);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/IOException", "getMessage", "()Ljava/lang/String;", false);
        mv.visitInsn(ARETURN);
        mv.visitLabel(l5);
        mv.visitFrame(Opcodes.F_FULL, 3, new Object[] { Opcodes.TOP, Opcodes.TOP, "java/io/BufferedWriter" }, 1,
                new Object[] { "java/lang/Throwable" });
        mv.visitVarInsn(ASTORE, 3);
        mv.visitVarInsn(ALOAD, 3);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Throwable", "getMessage", "()Ljava/lang/String;", false);
        mv.visitVarInsn(ASTORE, 4);
        mv.visitLabel(l10);
        mv.visitVarInsn(ALOAD, 2);
        Label l16 = new Label();
        mv.visitJumpInsn(IFNULL, l16);
        mv.visitLabel(l6);
        mv.visitVarInsn(ALOAD, 2);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/BufferedWriter", "close", "()V", false);
        mv.visitLabel(l7);
        mv.visitJumpInsn(GOTO, l16);
        mv.visitLabel(l8);
        mv.visitFrame(Opcodes.F_FULL, 0, new Object[] {}, 1, new Object[] { "java/io/IOException" });
        mv.visitVarInsn(ASTORE, 5);
        mv.visitVarInsn(ALOAD, 5);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/IOException", "getMessage", "()Ljava/lang/String;", false);
        mv.visitInsn(ARETURN);
        mv.visitLabel(l16);
        mv.visitFrame(Opcodes.F_FULL, 5,
                new Object[] { Opcodes.TOP, Opcodes.TOP, Opcodes.TOP, Opcodes.TOP, "java/lang/String" }, 0,
                new Object[] {});
        mv.visitVarInsn(ALOAD, 4);
        mv.visitInsn(ARETURN);
        mv.visitLabel(l9);
        mv.visitFrame(Opcodes.F_FULL, 3, new Object[] { Opcodes.TOP, Opcodes.TOP, "java/io/BufferedWriter" }, 1,
                new Object[] { "java/lang/Throwable" });
        mv.visitVarInsn(ASTORE, 6);
        mv.visitLabel(l14);
        mv.visitVarInsn(ALOAD, 2);
        Label l17 = new Label();
        mv.visitJumpInsn(IFNULL, l17);
        mv.visitLabel(l11);
        mv.visitVarInsn(ALOAD, 2);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/BufferedWriter", "close", "()V", false);
        mv.visitLabel(l12);
        mv.visitJumpInsn(GOTO, l17);
        mv.visitLabel(l13);
        mv.visitFrame(Opcodes.F_FULL, 0, new Object[] {}, 1, new Object[] { "java/io/IOException" });
        mv.visitVarInsn(ASTORE, 7);
        mv.visitVarInsn(ALOAD, 7);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/IOException", "getMessage", "()Ljava/lang/String;", false);
        mv.visitInsn(ARETURN);
        mv.visitLabel(l17);
        mv.visitFrame(Opcodes.F_FULL, 7, new Object[] { Opcodes.TOP, Opcodes.TOP, Opcodes.TOP, Opcodes.TOP,
                Opcodes.TOP, Opcodes.TOP, "java/lang/Throwable" }, 0, new Object[] {});
        mv.visitVarInsn(ALOAD, 6);
        mv.visitInsn(ATHROW);
        mv.visitLabel(l15);
        mv.visitFrame(Opcodes.F_FULL, 0, new Object[] {}, 0, new Object[] {});
        mv.visitLdcInsn("");
        mv.visitInsn(ARETURN);
        mv.visitMaxs(9, 8);
        mv.visitEnd();
    }

    // public static void d(String var0)
    {
        mv = cw.visitMethod(ACC_PUBLIC + ACC_STATIC, "d", "(Ljava/lang/String;)V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESTATIC, "JP/co/esm/caddies/jomt/license/h", "c",
                "(Ljava/lang/String;)Ljava/lang/String;", false);
        mv.visitVarInsn(ASTORE, 1);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKESTATIC, "JP/co/esm/caddies/jomt/license/h", "e", "(Ljava/lang/String;)Z",
                false);
        mv.visitVarInsn(ISTORE, 2);
        mv.visitVarInsn(ILOAD, 2);
        Label l0 = new Label();
        mv.visitJumpInsn(IFEQ, l0);
        mv.visitInsn(ICONST_1);
        mv.visitFieldInsn(PUTSTATIC, "JP/co/esm/caddies/jomt/jsystem/c", "p", "Z");
        mv.visitMethodInsn(INVOKESTATIC, "JP/co/esm/caddies/jomt/license/p", "c",
                "()LJP/co/esm/caddies/jomt/license/p;", false);
        mv.visitMethodInsn(INVOKESTATIC, "JP/co/esm/caddies/jomt/jsystem/j", "d", "()Ljava/lang/String;",
                false);
        mv.visitLdcInsn("P");
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/String", "equals", "(Ljava/lang/Object;)Z", false);
        Label l1 = new Label();
        mv.visitJumpInsn(IFEQ, l1);
        mv.visitLdcInsn("astah_professional");
        Label l2 = new Label();
        mv.visitJumpInsn(GOTO, l2);
        mv.visitLabel(l1);
        mv.visitFrame(Opcodes.F_FULL, 2, new Object[] { Opcodes.TOP, "java/lang/String" }, 1,
                new Object[] { "JP/co/esm/caddies/jomt/license/p" });
        mv.visitLdcInsn("astah_UML");
        mv.visitLabel(l2);
        mv.visitFrame(Opcodes.F_FULL, 2, new Object[] { Opcodes.TOP, "java/lang/String" }, 2,
                new Object[] { "JP/co/esm/caddies/jomt/license/p", "java/lang/String" });
        mv.visitLdcInsn("USER_TYPE");
        mv.visitLdcInsn("Evaluation");
        mv.visitMethodInsn(INVOKEVIRTUAL, "JP/co/esm/caddies/jomt/license/p", "a",
                "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V", false);
        mv.visitInsn(ICONST_1);
        mv.visitTypeInsn(ANEWARRAY, "java/lang/String");
        mv.visitVarInsn(ASTORE, 3);
        mv.visitVarInsn(ALOAD, 3);
        mv.visitInsn(ICONST_0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKESTATIC, "JP/co/esm/caddies/jomt/license/h", "a",
                "(Ljava/lang/String;)Ljava/lang/String;", false);
        mv.visitInsn(AASTORE);
        mv.visitLdcInsn("app");
        mv.visitLdcInsn("license_evaluation_term.message");
        mv.visitVarInsn(ALOAD, 3);
        mv.visitMethodInsn(INVOKESTATIC, "JP/co/esm/caddies/jomt/jview/eO", "e",
                "(Ljava/lang/String;Ljava/lang/String;[Ljava/lang/Object;)V", false);
        Label l3 = new Label();
        mv.visitJumpInsn(GOTO, l3);
        mv.visitLabel(l0);
        mv.visitFrame(Opcodes.F_CHOP, 2, null, 0, null);
        mv.visitInsn(ICONST_1);
        mv.visitFieldInsn(PUTSTATIC, "JP/co/esm/caddies/jomt/jsystem/c", "q", "Z");
        mv.visitLabel(l3);
        mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        mv.visitInsn(RETURN);
        mv.visitMaxs(4, 4);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC + ACC_STATIC, "e", "(Ljava/lang/String;)Z", null, null);
        mv.visitCode();
        mv.visitMethodInsn(INVOKESTATIC, "JP/co/esm/caddies/jomt/license/h", "c",
                "()Ljava/util/GregorianCalendar;", false);
        mv.visitVarInsn(ASTORE, 1);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESTATIC, "JP/co/esm/caddies/jomt/license/h", "f",
                "(Ljava/lang/String;)Ljava/util/GregorianCalendar;", false);
        mv.visitVarInsn(ASTORE, 2);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESTATIC, "JP/co/esm/caddies/jomt/license/h", "g",
                "(Ljava/lang/String;)Ljava/util/GregorianCalendar;", false);
        mv.visitVarInsn(ASTORE, 3);
        mv.visitVarInsn(ALOAD, 2);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/util/GregorianCalendar", "equals", "(Ljava/lang/Object;)Z",
                false);
        Label l0 = new Label();
        mv.visitJumpInsn(IFEQ, l0);
        mv.visitInsn(ICONST_1);
        mv.visitInsn(IRETURN);
        mv.visitLabel(l0);
        mv.visitFrame(Opcodes.F_FULL, 4, new Object[] { Opcodes.TOP, "java/util/GregorianCalendar",
                "java/util/GregorianCalendar", "java/util/GregorianCalendar" }, 0, new Object[] {});
        mv.visitVarInsn(ALOAD, 3);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/util/GregorianCalendar", "equals", "(Ljava/lang/Object;)Z",
                false);
        Label l1 = new Label();
        mv.visitJumpInsn(IFEQ, l1);
        mv.visitInsn(ICONST_1);
        mv.visitInsn(IRETURN);
        mv.visitLabel(l1);
        mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        mv.visitVarInsn(ALOAD, 2);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/util/GregorianCalendar", "before", "(Ljava/lang/Object;)Z",
                false);
        Label l2 = new Label();
        mv.visitJumpInsn(IFEQ, l2);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitVarInsn(ALOAD, 3);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/util/GregorianCalendar", "before", "(Ljava/lang/Object;)Z",
                false);
        mv.visitJumpInsn(IFEQ, l2);
        mv.visitInsn(ICONST_1);
        mv.visitInsn(IRETURN);
        mv.visitLabel(l2);
        mv.visitFrame(Opcodes.F_FULL, 0, new Object[] {}, 0, new Object[] {});
        mv.visitInsn(ICONST_0);
        mv.visitInsn(IRETURN);
        mv.visitMaxs(2, 4);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_STATIC, "<clinit>", "()V", null, null);
        mv.visitCode();
        mv.visitTypeInsn(NEW, "java/lang/StringBuilder");
        mv.visitInsn(DUP);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/StringBuilder", "<init>", "()V", false);
        mv.visitMethodInsn(INVOKESTATIC, "JP/co/esm/caddies/jomt/jsystem/j", "s", "()Ljava/lang/String;",
                false);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
                "(Ljava/lang/String;)Ljava/lang/StringBuilder;", false);
        mv.visitFieldInsn(GETSTATIC, "java/io/File", "separator", "Ljava/lang/String;");
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
                "(Ljava/lang/String;)Ljava/lang/StringBuilder;", false);
        mv.visitLdcInsn(".ael");
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
                "(Ljava/lang/String;)Ljava/lang/StringBuilder;", false);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "toString", "()Ljava/lang/String;", false);
        mv.visitFieldInsn(PUTSTATIC, "JP/co/esm/caddies/jomt/license/h", "a", "Ljava/lang/String;");
        mv.visitInsn(ICONST_0);
        mv.visitFieldInsn(PUTSTATIC, "JP/co/esm/caddies/jomt/license/h", "b", "Z");
        mv.visitLdcInsn(Type.getType("LJP/co/esm/caddies/jomt/license/h;"));
        mv.visitMethodInsn(INVOKESTATIC, "org/slf4j/LoggerFactory", "getLogger",
                "(Ljava/lang/Class;)Lorg/slf4j/Logger;", false);
        mv.visitFieldInsn(PUTSTATIC, "JP/co/esm/caddies/jomt/license/h", "c", "Lorg/slf4j/Logger;");
        mv.visitInsn(RETURN);
        mv.visitMaxs(2, 0);
        mv.visitEnd();
    }
    cw.visitEnd();

    return cw.toByteArray();
}

---

From source file:io.syncframework.optimizer.OControllerClassVisitor.java

License:Apache License

/**
 * Generates _asActions() method as following:
 * /*w  w w .  j  a  va 2  s. c  om*/
 * if(name.equals("upload"))
 *    return upload();
 * else if(name.equals("save"))
 *    return save();
 * else if(name.equals("main"))
 *    return main();
 * else if(name.equals("redir"))
 *    return redir();
 * else
 *    throw new RuntimeException("no action named "+name);
 */
private void createActionMethod() {
    StringBuilder sb = new StringBuilder();
    sb.append("(").append(Type.getType(String.class)).append(")").append(Type.getType(Result.class));
    String desc = sb.toString();

    MethodVisitor mv = cv.visitMethod(Opcodes.ACC_PUBLIC, "_asAction", desc, null, null);

    Label start = new Label();
    Label next = new Label();
    Label variable = new Label();
    boolean first = true;

    for (String name : reflector.getActions().keySet()) {
        Label l0 = null;
        Label l1 = new Label();

        if (first) {
            l0 = new Label();
            first = false;
        } else {
            l0 = next;
            next = new Label();
        }

        mv.visitLabel(l0);
        if (!first) {
            mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        }
        mv.visitVarInsn(Opcodes.ALOAD, 1);
        mv.visitLdcInsn(name);
        mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/String", "equals", "(Ljava/lang/Object;)Z", false);
        mv.visitJumpInsn(Opcodes.IFEQ, next);

        mv.visitLabel(l1);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, reflector.getClazzInternalName(), name,
                "()" + Type.getType(Result.class), false);
        mv.visitInsn(Opcodes.ARETURN);
    }

    mv.visitLabel(next);
    mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
    mv.visitTypeInsn(Opcodes.NEW, "java/lang/NoSuchMethodException");
    mv.visitInsn(Opcodes.DUP);
    mv.visitTypeInsn(Opcodes.NEW, "java/lang/StringBuilder");
    mv.visitInsn(Opcodes.DUP);
    mv.visitLdcInsn("no @Action named ");
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/StringBuilder", "<init>", "(Ljava/lang/String;)V",
            false);
    mv.visitVarInsn(Opcodes.ALOAD, 1);
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
            "(Ljava/lang/String;)Ljava/lang/StringBuilder;", false);
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/StringBuilder", "toString", "()Ljava/lang/String;",
            false);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/NoSuchMethodException", "<init>",
            "(Ljava/lang/String;)V", false);
    mv.visitInsn(Opcodes.ATHROW);

    mv.visitLabel(variable);
    mv.visitLocalVariable("this", reflector.getClazzDescriptor(), null, start, next, 0);
    mv.visitLocalVariable("name", "Ljava/lang/String;", null, start, next, 1);

    mv.visitMaxs(5, 2);
    mv.visitEnd();
}

---

From source file:io.syncframework.optimizer.OControllerClassVisitor.java

License:Apache License

/**
 * Generates this code:/*from ww  w  . ja  v  a 2 s  . c  o  m*/
 * 
 * public boolean _asActionIsDefined(String name) {
 *    if(_asActions.containsKey(name))
 *       return true;
 *    return false;
 * }
 */
public void createActionIsDefinedMethod() {
    MethodVisitor mv = cv.visitMethod(Opcodes.ACC_PUBLIC, "_asActionIsDefined", "(Ljava/lang/String;)Z", null,
            null);
    Label l0 = new Label();
    Label l1 = new Label();
    Label l2 = new Label();
    Label l3 = new Label();

    mv.visitLabel(l0);
    mv.visitFieldInsn(Opcodes.GETSTATIC, reflector.getClazzInternalName(), "_asActions", "Ljava/util/Map;");
    mv.visitVarInsn(Opcodes.ALOAD, 1);
    mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/Map", "containsKey", "(Ljava/lang/Object;)Z", true);
    mv.visitJumpInsn(Opcodes.IFEQ, l1);

    mv.visitLabel(l2);
    mv.visitInsn(Opcodes.ICONST_1);
    mv.visitInsn(Opcodes.IRETURN);

    mv.visitLabel(l1);
    mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
    mv.visitInsn(Opcodes.ICONST_0);
    mv.visitInsn(Opcodes.IRETURN);

    mv.visitLabel(l3);
    mv.visitLocalVariable("this", reflector.getClazzDescriptor(), null, l0, l3, 0);
    mv.visitLocalVariable("name", "Ljava/lang/String;", null, l0, l3, 1);
    mv.visitMaxs(2, 2);

    mv.visitEnd();
}

---

From source file:io.syncframework.optimizer.OControllerClassVisitor.java

License:Apache License

/**
 * Generates the _asParameter() getter as
 * /*from   w  w w  .java2 s  .c  o  m*/
 * public Object _asParameter(String name) {
 *    if(name.equals("name"))
 *       return getName();
 *    if(name.equals("date"))
 *       return getDate();
 *    ...
 *    return null;
 * }
 */
private void createParametersGetterMethod() {
    MethodVisitor mv = cv.visitMethod(Opcodes.ACC_PUBLIC, "_asParameter",
            "(Ljava/lang/String;)Ljava/lang/Object;", null, null);

    Label start = new Label();
    Label next = new Label();
    Label variable = new Label();
    boolean first = true;

    for (String name : reflector.getParameters().keySet()) {
        Label l0 = null;
        Label l1 = new Label();

        if (first) {
            l0 = new Label();
            first = false;
        } else {
            l0 = next;
            next = new Label();
        }

        mv.visitLabel(l0);
        if (!first)
            mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        mv.visitVarInsn(Opcodes.ALOAD, 1);
        mv.visitLdcInsn(name);
        mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/String", "equals", "(Ljava/lang/Object;)Z", false);
        mv.visitJumpInsn(Opcodes.IFEQ, next);

        String methodGetterName = reflector.getGetters().get(name).getName();
        String methodGetterDesc = "()" + Type.getDescriptor(reflector.getParameters().get(name));

        mv.visitLabel(l1);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, reflector.getClazzInternalName(), methodGetterName,
                methodGetterDesc, false);
        mv.visitInsn(Opcodes.ARETURN);
    }

    mv.visitLabel(next);
    mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
    mv.visitInsn(Opcodes.ACONST_NULL);
    mv.visitInsn(Opcodes.ARETURN);
    mv.visitLabel(variable);
    mv.visitLocalVariable("this", reflector.getClazzDescriptor(), null, start, variable, 0);
    mv.visitLocalVariable("name", "Ljava/lang/String;", null, start, variable, 1);
    mv.visitMaxs(2, 2);
    mv.visitEnd();
}

---

From source file:io.syncframework.optimizer.OControllerClassVisitor.java

License:Apache License

/**
 * Creates the code as:/*from   w w w.  j a  v a  2 s  . com*/
 * 
 * public void _asParameter(String name, Object value) {
 *    if(name.equals("name") {
 *       setName((String)value);
 *       return;
 *    }
 *   if(name.equals("date") {
 *      setDate((Date)value);
 *      return;
 *   }
 *   ...
 *    return;
 * } 
 */
private void createParametersSetterMethod() {
    MethodVisitor mv = cv.visitMethod(Opcodes.ACC_PUBLIC, "_asParameter",
            "(Ljava/lang/String;Ljava/lang/Object;)V", null, null);

    Label start = new Label();
    Label next = new Label();
    Label variable = new Label();
    boolean first = true;

    for (String name : reflector.getParameters().keySet()) {
        Label l0 = null;
        Label l1 = new Label();
        Label l2 = new Label();

        if (first) {
            l0 = new Label();
            first = false;
        } else {
            l0 = next;
            next = new Label();
        }

        mv.visitLabel(l0);
        if (!first)
            mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        mv.visitVarInsn(Opcodes.ALOAD, 1);
        mv.visitLdcInsn(name);
        mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/String", "equals", "(Ljava/lang/Object;)Z", false);
        mv.visitJumpInsn(Opcodes.IFEQ, next);

        Class<?> parameterType = reflector.getParameters().get(name);

        String setterMethodName = reflector.getSetters().get(name).getName();
        String setterMethodDesc = "(" + Type.getDescriptor(parameterType) + ")V";

        mv.visitLabel(l1);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitVarInsn(Opcodes.ALOAD, 2);
        mv.visitTypeInsn(Opcodes.CHECKCAST, Type.getInternalName(parameterType));
        mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, reflector.getClazzInternalName(), setterMethodName,
                setterMethodDesc, false);

        mv.visitLabel(l2);
        mv.visitInsn(Opcodes.RETURN);
    }

    mv.visitLabel(next);
    mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
    mv.visitInsn(Opcodes.RETURN);

    mv.visitLabel(variable);
    mv.visitLocalVariable("this", reflector.getClazzDescriptor(), null, start, next, 0);
    mv.visitLocalVariable("name", "Ljava/lang/String;", null, start, next, 1);
    mv.visitLocalVariable("value", "Ljava/lang/Object;", null, start, next, 2);
    mv.visitMaxs(2, 3);
    mv.visitEnd();
}

---

From source file:javaone2015.con7442.indyprotector.BootstrapMethodGenerator.java

License:Apache License

/**
 * Generate bootstrap method//from w  ww  . j  a  va 2 s .co  m
 */
public void insertMethod(ClassVisitor target) {
    MethodVisitor mv = target.visitMethod(ACC_PRIVATE + ACC_STATIC, BSM_NAME, BSM_SIG, null, null);
    mv.visitCode();
    Label l0 = new Label();
    Label l1 = new Label();
    Label l2 = new Label();
    mv.visitTryCatchBlock(l0, l1, l2, "java/lang/Exception");
    mv.visitInsn(ACONST_NULL);
    mv.visitVarInsn(ASTORE, 7);
    mv.visitLabel(l0);
    mv.visitVarInsn(ALOAD, 4);
    mv.visitMethodInsn(INVOKESTATIC, "java/lang/Class", "forName", "(Ljava/lang/String;)Ljava/lang/Class;",
            false);
    mv.visitVarInsn(ASTORE, 8);
    mv.visitLdcInsn(Type.getType(targetClassName));
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", "getClassLoader", "()Ljava/lang/ClassLoader;", false);
    mv.visitVarInsn(ASTORE, 9);
    mv.visitVarInsn(ALOAD, 6);
    mv.visitVarInsn(ALOAD, 9);
    mv.visitMethodInsn(INVOKESTATIC, "java/lang/invoke/MethodType", "fromMethodDescriptorString",
            "(Ljava/lang/String;Ljava/lang/ClassLoader;)Ljava/lang/invoke/MethodType;", false);
    mv.visitVarInsn(ASTORE, 10);
    mv.visitVarInsn(ILOAD, 3);
    Label l3 = new Label();
    Label l4 = new Label();
    Label l5 = new Label();
    mv.visitTableSwitchInsn(182, 185, l4, new Label[] { l3, l4, l5, l3 });
    mv.visitLabel(l5);
    mv.visitFrame(Opcodes.F_FULL, 11,
            new Object[] { "java/lang/invoke/MethodHandles$Lookup", "java/lang/String",
                    "java/lang/invoke/MethodType", Opcodes.INTEGER, "java/lang/String", "java/lang/String",
                    "java/lang/String", "java/lang/invoke/MethodHandle", "java/lang/Class",
                    "java/lang/ClassLoader", "java/lang/invoke/MethodType" },
            0, new Object[] {});
    mv.visitVarInsn(ALOAD, 0);
    mv.visitVarInsn(ALOAD, 8);
    mv.visitVarInsn(ALOAD, 5);
    mv.visitVarInsn(ALOAD, 10);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/invoke/MethodHandles$Lookup", "findStatic",
            "(Ljava/lang/Class;Ljava/lang/String;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/MethodHandle;",
            false);
    mv.visitVarInsn(ASTORE, 7);
    Label l6 = new Label();
    mv.visitJumpInsn(GOTO, l6);
    mv.visitLabel(l3);
    mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitVarInsn(ALOAD, 8);
    mv.visitVarInsn(ALOAD, 5);
    mv.visitVarInsn(ALOAD, 10);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/invoke/MethodHandles$Lookup", "findVirtual",
            "(Ljava/lang/Class;Ljava/lang/String;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/MethodHandle;",
            false);
    mv.visitVarInsn(ASTORE, 7);
    mv.visitJumpInsn(GOTO, l6);
    mv.visitLabel(l4);
    mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
    mv.visitTypeInsn(NEW, "java/lang/BootstrapMethodError");
    mv.visitInsn(DUP);
    mv.visitMethodInsn(INVOKESPECIAL, "java/lang/BootstrapMethodError", "<init>", "()V", false);
    mv.visitInsn(ATHROW);
    mv.visitLabel(l6);
    mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
    mv.visitVarInsn(ALOAD, 7);
    mv.visitVarInsn(ALOAD, 2);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/invoke/MethodHandle", "asType",
            "(Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/MethodHandle;", false);
    mv.visitVarInsn(ASTORE, 7);
    mv.visitLabel(l1);
    Label l7 = new Label();
    mv.visitJumpInsn(GOTO, l7);
    mv.visitLabel(l2);
    mv.visitFrame(Opcodes.F_FULL, 8,
            new Object[] { "java/lang/invoke/MethodHandles$Lookup", "java/lang/String",
                    "java/lang/invoke/MethodType", Opcodes.INTEGER, "java/lang/String", "java/lang/String",
                    "java/lang/String", "java/lang/invoke/MethodHandle" },
            1, new Object[] { "java/lang/Exception" });
    mv.visitVarInsn(ASTORE, 8);
    mv.visitTypeInsn(NEW, "java/lang/BootstrapMethodError");
    mv.visitInsn(DUP);
    mv.visitMethodInsn(INVOKESPECIAL, "java/lang/BootstrapMethodError", "<init>", "()V", false);
    mv.visitInsn(ATHROW);
    mv.visitLabel(l7);
    mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
    mv.visitTypeInsn(NEW, "java/lang/invoke/ConstantCallSite");
    mv.visitInsn(DUP);
    mv.visitVarInsn(ALOAD, 7);
    mv.visitMethodInsn(INVOKESPECIAL, "java/lang/invoke/ConstantCallSite", "<init>",
            "(Ljava/lang/invoke/MethodHandle;)V", false);
    mv.visitInsn(ARETURN);
    mv.visitMaxs(4, 11);
    mv.visitEnd();

}

---

From source file:jtaint.ServletAdapter.java

License:Apache License

private void buildTaintedReturnWrapper(MethodVisitor mv, Klass k, int access, String name, String desc) {
    mv.visitCode();/*from www .j  av  a  2 s  .  co m*/
    Type[] args = Type.getArgumentTypes(desc);
    Type ret = Type.getReturnType(desc);
    boolean isStatic = (access & ACC_STATIC) != 0;
    int l = 0;

    if (!isStatic) {
        mv.visitVarInsn(ALOAD, 0);
        l = 1;
    }

    for (int i = 0; i < args.length; l += args[i].getSize(), i++)
        mv.visitVarInsn(args[i].getOpcode(ILOAD), l);
    mv.visitMethodInsn(isStatic ? INVOKESTATIC : INVOKESPECIAL, className, ByteCodeUtil.internalName(name),
            desc);

    String taintDesc = Type.getMethodDescriptor(ret, new Type[] { ret });

    if (k.isExact()) {
        /* We already know that we need to wrap...no runtime check needed */
        mv.visitMethodInsn(INVOKESTATIC, "jtaint/StringUtil", "toTainted", taintDesc);
        mv.visitInsn(ARETURN);
        mv.visitMaxs(l, l);
        mv.visitEnd();
        return;
    }

    /* Now taint the return type, if we need to */
    mv.visitVarInsn(ALOAD, 0);
    mv.visitFieldInsn(GETFIELD, className, ByteCodeUtil.internalName("is" + k.simpleName()), "Z");
    Label l0 = new Label();
    mv.visitJumpInsn(IFEQ, l0);
    mv.visitMethodInsn(INVOKESTATIC, "jtaint/StringUtil", "toTainted", taintDesc);

    mv.visitLabel(l0);
    if (version == V1_6)
        mv.visitFrame(F_SAME1, 0, null, 1, new Object[] { ret.getInternalName() });
    mv.visitInsn(ARETURN);
    mv.visitMaxs(Math.max(l, 2), l);
    mv.visitEnd();
}

---

From source file:jtaint.ServletAdapter.java

License:Apache License

private void buildServletWrapper(MethodVisitor mv, Klass k, String name, String desc) {
    mv.visitCode();//from  ww w.j  a v  a 2  s.  com

    Label start = new Label(), end = new Label(), handler = new Label();
    mv.visitTryCatchBlock(start, end, handler, null);
    mv.visitLabel(start);

    mv.visitVarInsn(ALOAD, 0);
    mv.visitFieldInsn(GETFIELD, className, ByteCodeUtil.internalName("is" + k.simpleName()), "Z");
    Label l0 = new Label();
    mv.visitJumpInsn(IFEQ, l0);

    Type[] t = Type.getArgumentTypes(desc);

    mv.visitVarInsn(ALOAD, 1);
    mv.visitMethodInsn(INVOKEINTERFACE, t[0].getInternalName(), "getParameterMap", "()Ljava/util/Map;");

    mv.visitVarInsn(ALOAD, 1);
    mv.visitMethodInsn(INVOKEINTERFACE, t[0].getInternalName(), "getRemoteHost", "()Ljava/lang/String;");

    mv.visitVarInsn(ALOAD, 1);
    mv.visitMethodInsn(INVOKEINTERFACE, t[0].getInternalName(), "getRemoteAddr", "()Ljava/lang/String;");

    mv.visitMethodInsn(INVOKESTATIC, "jtaint/HttpUtil", "preService",
            "(Ljava/util/Map;Ljava/lang/String;Ljava/lang/String;)V");
    mv.visitLabel(l0);
    if (version == V1_6)
        mv.visitFrame(F_SAME, 0, null, 0, null);

    mv.visitVarInsn(ALOAD, 0);
    int l = 1;

    for (int i = 0; i < t.length; l += t[i].getSize(), i++)
        mv.visitVarInsn(t[i].getOpcode(ILOAD), l);
    mv.visitMethodInsn(INVOKESPECIAL, className, ByteCodeUtil.internalName(name), desc);

    mv.visitVarInsn(ALOAD, 0);
    mv.visitFieldInsn(GETFIELD, className, ByteCodeUtil.internalName("is" + k.simpleName()), "Z");
    Label l1 = new Label();
    mv.visitJumpInsn(IFEQ, l1);

    mv.visitMethodInsn(INVOKESTATIC, "jtaint/HttpUtil", "postService", "()V");
    mv.visitLabel(l1);
    if (version == V1_6)
        mv.visitFrame(F_SAME, 0, null, 0, null);
    mv.visitInsn(RETURN);
    mv.visitLabel(end);

    mv.visitLabel(handler);
    if (version == V1_6)
        mv.visitFrame(F_SAME1, 0, null, 1, new Object[] { "java/lang/Throwable" });

    mv.visitVarInsn(ALOAD, 0);
    mv.visitFieldInsn(GETFIELD, className, ByteCodeUtil.internalName("is" + k.simpleName()), "Z");
    Label l2 = new Label();
    mv.visitJumpInsn(IFEQ, l2);
    mv.visitMethodInsn(INVOKESTATIC, "jtaint/HttpUtil", "postService", "()V");
    mv.visitLabel(l2);
    if (version == V1_6)
        mv.visitFrame(F_SAME1, 0, null, 1, new Object[] { "java/lang/Throwable" });

    mv.visitInsn(ATHROW);
    mv.visitMaxs(Math.max(l, 3), l);
    mv.visitEnd();
}

---

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