Example usage for org.objectweb.asm Opcodes ACONST_NULL

Introduction

In this page you can find the example usage for org.objectweb.asm Opcodes ACONST_NULL.

Prototype

int ACONST_NULL

To view the source code for org.objectweb.asm Opcodes ACONST_NULL.

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Usage

From source file:com.codename1.tools.translator.bytecodes.BasicInstruction.java

License:Open Source License

@Override
public boolean assignTo(String varName, StringBuilder sb) {
    StringBuilder b = new StringBuilder();
    //StringBuilder b2 = new StringBuilder();
    //if (typeVarName != null) {
    //    b2.append(typeVarName).append(" = ");
    //    /* w w  w .j  a va 2  s  .c o  m*/
    //}
    if (varName != null) {
        b.append(varName).append(" = ");
    }
    switch (opcode) {
    case Opcodes.ACONST_NULL:
        b.append("JAVA_NULL /* ACONST_NULL */");
        //b2.append("CN1_TYPE_OBJECT");
        break;

    case Opcodes.ICONST_M1:
        b.append("-1 /* ICONST_M1 */");
        //b2.append("CN1_TYPE_INT");
        break;

    case Opcodes.ICONST_0:
        b.append("0 /* ICONST_0 */");
        //b2.append("CN1_TYPE_INT");
        break;

    case Opcodes.ICONST_1:
        b.append("1 /* ICONST_1 */");
        //b2.append("CN1_TYPE_INT");
        break;

    case Opcodes.ICONST_2:
        b.append("2 /* ICONST_2 */");
        //b2.append("CN1_TYPE_INT");
        break;

    case Opcodes.ICONST_3:
        b.append("3 /* ICONST_3 */");
        //b2.append("CN1_TYPE_INT");
        break;

    case Opcodes.ICONST_4:
        b.append("4/* ICONST_4 */");
        //b2.append("CN1_TYPE_INT");
        break;

    case Opcodes.ICONST_5:
        b.append("5 /* ICONST_5 */");
        ///b2.append("CN1_TYPE_INT");
        break;

    case Opcodes.LCONST_0:
        b.append("0 /* LCONST_0 */");
        //b2.append("CN1_TYPE_LONG");
        break;

    case Opcodes.LCONST_1:
        b.append("1 /* LCONST_1 */");
        //b2.append("CN1_TYPE_LONG");
        break;

    case Opcodes.FCONST_0:
        b.append("0 /* FCONST_0 */");
        //b2.append("CN1_TYPE_FLOAT");
        break;

    case Opcodes.FCONST_1:
        b.append("1 /* FCONST_1 */");
        //b2.append("CN1_TYPE_FLOAT");
        break;

    case Opcodes.FCONST_2:
        b.append("2 /* FCONST_2 */");
        //b2.append("CN1_TYPE_FLOAT");
        break;

    case Opcodes.DCONST_0:
        b.append("0 /* DCONST_0 */");
        //b2.append("CN1_TYPE_DOUBLE");
        break;

    case Opcodes.DCONST_1:
        b.append("1 /* DCONST_1 */");
        //b2.append("CN1_TYPE_DOUBLE");
        break;

    // int instructions
    case Opcodes.SIPUSH:
    case Opcodes.BIPUSH:
        b.append(value);
        b.append("/* SIPUSH */");
        //b2.append("CN1_TYPE_INT");
        break;

    default:
        return false;
    }

    if (varName != null) {
        sb.append("    ");
        b.append("; \n");
    }

    //if (typeVarName != null) {
    //    sb.append(b2).append("; ");
    //}
    sb.append(b);

    return true;
}

---

From source file:com.codename1.tools.translator.Util.java

License:Open Source License

public static char[] getStackInputTypes(Instruction instr) {
    char[] out = instr.getStackInputTypes();
    if (out != null) {
        return out;
    }//  ww w .j  a  v  a 2s  .  co m

    switch (instr.getOpcode()) {

    case Opcodes.NOP:
    case Opcodes.ACONST_NULL:
    case Opcodes.ICONST_M1:
    case Opcodes.ICONST_0:
    case Opcodes.ICONST_2:
    case Opcodes.ICONST_3:
    case Opcodes.ICONST_4:
    case Opcodes.ICONST_5:
    case Opcodes.LCONST_0:
    case Opcodes.LCONST_1:
    case Opcodes.FCONST_0:
    case Opcodes.FCONST_1:
    case Opcodes.FCONST_2:
    case Opcodes.DCONST_0:
    case Opcodes.DCONST_1:
    case Opcodes.SIPUSH:
    case Opcodes.BIPUSH:
        return new char[0];
    case Opcodes.BALOAD:
    case Opcodes.CALOAD:
    case Opcodes.IALOAD:
    case Opcodes.SALOAD:
    case Opcodes.LALOAD:
    case Opcodes.FALOAD:
    case Opcodes.DALOAD:
    case Opcodes.AALOAD:
        return new char[] { 'i', 'o' };

    case Opcodes.BASTORE:
    case Opcodes.CASTORE:
    case Opcodes.SASTORE:
    case Opcodes.IASTORE:
        return new char[] { 'i', 'i', 'o' };
    case Opcodes.LASTORE:
        return new char[] { 'l', 'i', 'o' };
    case Opcodes.FASTORE:
        return new char[] { 'f', 'i', 'o' };
    case Opcodes.DASTORE:
        return new char[] { 'd', 'i', 'o' };
    case Opcodes.AASTORE:
        return new char[] { 'o', 'i', 'o' };

    case Opcodes.POP:
        return new char[] { '*' };

    case Opcodes.POP2:
        return new char[] { '*', '*' };

    case Opcodes.DUP:
        return new char[] { '0' };

    case Opcodes.DUP2:
    case Opcodes.DUP_X2:
    case Opcodes.DUP2_X2:
        return null; // DUP2 depends on the types on the stack so we don't statically know the input types

    case Opcodes.DUP_X1:
    case Opcodes.DUP2_X1:
        return new char[] { '0', '1' };
    case Opcodes.SWAP:
        return new char[] { '0', '1' };
    case Opcodes.IADD:
    case Opcodes.ISUB:
    case Opcodes.IMUL:
    case Opcodes.IDIV:
    case Opcodes.IREM:
    case Opcodes.ISHL:
    case Opcodes.ISHR:
    case Opcodes.IUSHR:
    case Opcodes.IAND:
    case Opcodes.IOR:
    case Opcodes.IXOR:
        return new char[] { 'i', 'i' };

    case Opcodes.LADD:
    case Opcodes.LSUB:
    case Opcodes.LMUL:
    case Opcodes.LDIV:
    case Opcodes.LREM:
    case Opcodes.LSHL:
    case Opcodes.LSHR:
    case Opcodes.LAND:
    case Opcodes.LOR:
    case Opcodes.LXOR:
    case Opcodes.LCMP:
        return new char[] { 'l', 'l' };
    case Opcodes.FADD:
    case Opcodes.FSUB:
    case Opcodes.FMUL:
    case Opcodes.FDIV:
    case Opcodes.FREM:
    case Opcodes.FCMPG:
    case Opcodes.FCMPL:
        return new char[] { 'f', 'f' };
    case Opcodes.DADD:
    case Opcodes.DSUB:
    case Opcodes.DMUL:
    case Opcodes.DDIV:
    case Opcodes.DREM:
    case Opcodes.DCMPL:
    case Opcodes.DCMPG:
        return new char[] { 'd', 'd' };

    case Opcodes.INEG:
    case Opcodes.I2L:
    case Opcodes.I2F:
    case Opcodes.I2D:
    case Opcodes.I2B:
    case Opcodes.I2C:
    case Opcodes.I2S:
    case Opcodes.NEWARRAY:
        return new char[] { 'i' };
    case Opcodes.LNEG:
    case Opcodes.L2I:
    case Opcodes.L2F:
    case Opcodes.L2D:
        return new char[] { 'l' };

    case Opcodes.FNEG:
    case Opcodes.F2I:
    case Opcodes.F2L:
    case Opcodes.F2D:
        return new char[] { 'f' };
    case Opcodes.DNEG:
    case Opcodes.D2I:
    case Opcodes.D2L:
    case Opcodes.D2F:
        return new char[] { 'd' };
    case Opcodes.LUSHR:
        return new char[] { 'i', 'l' };

    case Opcodes.ARRAYLENGTH:
    case Opcodes.MONITORENTER:
    case Opcodes.MONITOREXIT:
    case Opcodes.ATHROW:
        return new char[] { 'o' };
    default:
        return null;

    }

}

---

From source file:com.codename1.tools.translator.Util.java

License:Open Source License

public static char[] getStackOutputTypes(Instruction instr) {
    char[] out = instr.getStackOutputTypes();
    if (out != null) {
        return out;
    }/* w  w  w.j  av a  2s .  co  m*/

    switch (instr.getOpcode()) {
    case Opcodes.NOP:
    case Opcodes.BASTORE:
    case Opcodes.CASTORE:
    case Opcodes.SASTORE:
    case Opcodes.IASTORE:
    case Opcodes.LASTORE:
    case Opcodes.FASTORE:
    case Opcodes.DASTORE:
    case Opcodes.AASTORE:
    case Opcodes.POP:
    case Opcodes.POP2:
    case Opcodes.MONITORENTER:
    case Opcodes.MONITOREXIT:
    case Opcodes.ATHROW:
        return new char[0];

    case Opcodes.ACONST_NULL:
    case Opcodes.AALOAD:
    case Opcodes.NEWARRAY:
        return new char[] { 'o' };

    case Opcodes.ICONST_M1:
    case Opcodes.ICONST_0:
    case Opcodes.ICONST_1:
    case Opcodes.ICONST_2:
    case Opcodes.ICONST_3:
    case Opcodes.ICONST_4:
    case Opcodes.ICONST_5:
    case Opcodes.BALOAD:
    case Opcodes.CALOAD:
    case Opcodes.IALOAD:
    case Opcodes.SALOAD:
    case Opcodes.IADD:
    case Opcodes.ISUB:
    case Opcodes.IMUL:
    case Opcodes.IDIV:
    case Opcodes.IREM:
    case Opcodes.INEG:
    case Opcodes.ISHL:
    case Opcodes.ISHR:
    case Opcodes.IUSHR:
    case Opcodes.IAND:
    case Opcodes.IOR:
    case Opcodes.IXOR:
    case Opcodes.F2I:
    case Opcodes.D2I:
    case Opcodes.L2I:
    case Opcodes.I2C:
    case Opcodes.I2S:
    case Opcodes.LCMP:
    case Opcodes.FCMPG:
    case Opcodes.FCMPL:
    case Opcodes.DCMPL:
    case Opcodes.DCMPG:
    case Opcodes.ARRAYLENGTH:
    case Opcodes.SIPUSH:
    case Opcodes.BIPUSH:
        return new char[] { 'i' };
    case Opcodes.LCONST_0:
    case Opcodes.LCONST_1:
    case Opcodes.LALOAD:
    case Opcodes.LADD:
    case Opcodes.LSUB:
    case Opcodes.LMUL:
    case Opcodes.LDIV:
    case Opcodes.LREM:
    case Opcodes.LNEG:
    case Opcodes.LSHL:
    case Opcodes.LSHR:
    case Opcodes.LUSHR:
    case Opcodes.LAND:
    case Opcodes.LOR:
    case Opcodes.LXOR:
    case Opcodes.I2L:
    case Opcodes.F2L:
    case Opcodes.D2L:
        return new char[] { 'l' };
    case Opcodes.FCONST_0:
    case Opcodes.FCONST_1:
    case Opcodes.FCONST_2:
    case Opcodes.FALOAD:
    case Opcodes.FADD:
    case Opcodes.FSUB:
    case Opcodes.FMUL:
    case Opcodes.FDIV:
    case Opcodes.FREM:
    case Opcodes.FNEG:
    case Opcodes.I2F:
    case Opcodes.D2F:
    case Opcodes.L2F:
        return new char[] { 'f' };
    case Opcodes.DCONST_0:
    case Opcodes.DCONST_1:
    case Opcodes.DALOAD:
    case Opcodes.DADD:
    case Opcodes.DSUB:
    case Opcodes.DMUL:
    case Opcodes.DDIV:
    case Opcodes.DREM:
    case Opcodes.DNEG:
    case Opcodes.I2D:
    case Opcodes.F2D:
    case Opcodes.L2D:
        return new char[] { 'd' };
    case Opcodes.DUP:
        return new char[] { '0', '0' };

    case Opcodes.DUP2:
    case Opcodes.DUP_X2:
    case Opcodes.DUP2_X2:
        return null;

    case Opcodes.DUP_X1:
    case Opcodes.DUP2_X1:
        return new char[] { '0', '1', '0' };
    case Opcodes.SWAP:
        return new char[] { '1', '0' };

    default:
        return null;
    }

}

---

From source file:com.devexperts.aprof.transformer.MethodTransformer.java

License:Open Source License

private void pushLocationStack() {
    assert context.isLocationStackNeeded() : context;
    if (context.isInternalLocation()) {
        mv.visitInsn(Opcodes.ACONST_NULL);
        return;//from  w  w w.j a  v a  2  s . c  om
    }
    int locationStack = context.getLocationStack();
    if (context.isMethodBodyTracked()) {
        assert locationStack >= 0 : context;
        mv.loadLocal(locationStack);
        return;
    }
    if (locationStack < 0) {
        mv.visitMethodInsn(Opcodes.INVOKESTATIC, TransformerUtil.LOCATION_STACK, "get",
                TransformerUtil.NOARG_RETURNS_STACK, false);
        return;
    }

    Label done = new Label();
    mv.loadLocal(locationStack);
    mv.dup();
    mv.ifNonNull(done);
    mv.pop();
    mv.visitMethodInsn(Opcodes.INVOKESTATIC, TransformerUtil.LOCATION_STACK, "get",
            TransformerUtil.NOARG_RETURNS_STACK, false);
    mv.dup();
    mv.storeLocal(locationStack);
    mv.visitLabel(done);
}

---

From source file:com.devexperts.aprof.transformer.MethodTransformer.java

License:Open Source License

@Override
protected void visitMarkDeclareLocationStack() {
    if (context.isLocationStackNeeded()) {
        int locationStack = mv.newLocal(Type.getType(LocationStack.class));
        if (context.isMethodBodyTracked()) {
            mv.visitMethodInsn(Opcodes.INVOKESTATIC, TransformerUtil.LOCATION_STACK, "get",
                    TransformerUtil.NOARG_RETURNS_STACK, false);
        } else {//from w  w w  . j  a  va  2  s .  c o  m
            mv.visitInsn(Opcodes.ACONST_NULL);
        }
        mv.storeLocal(locationStack);
        context.setLocationStack(locationStack);
    }
}

---

From source file:com.foxelbox.spigotpatcher.patchers.HideShowPlayerPatcher.java

License:Open Source License

@Override
public MethodVisitor getVisitor(int api, MethodVisitor parent) {
    return new MethodPatcherVisitor(api, parent) {
        @Override//w  w  w.j  av a 2 s . c  o  m
        protected boolean checkMethodInsn(int opcode, String clazz, String name, String desc) {
            if (opcode == Opcodes.INVOKEVIRTUAL && clazz.endsWith("/PlayerConnection")
                    && name.equals("sendPacket")) {
                visitInsn(Opcodes.POP);
                visitInsn(Opcodes.ACONST_NULL);
                System.out.println("HideShowPatcher: PATCHED (2 times = OK)");
            }
            return true;
        }
    };
}

---

From source file:com.geeksaga.light.profiler.util.ASMUtil.java

License:Apache License

public static AbstractInsnNode createPushNode(Object value) {
    AbstractInsnNode insnNode;/*w  w  w.  j a  v  a2  s. co  m*/

    if (value == null) {
        insnNode = new InsnNode(Opcodes.ACONST_NULL);
    } else {
        insnNode = new LdcInsnNode(value);
    }

    return insnNode;
}

---

From source file:com.geeksaga.light.profiler.util.ASMUtil.java

License:Apache License

public static InsnNode createACONST_NULL() {
    return new InsnNode(Opcodes.ACONST_NULL);
}

---

From source file:com.github.anba.es6draft.compiler.assembler.InstructionAssembler.java

License:Open Source License

public void anull() {
    methodVisitor.visitInsn(Opcodes.ACONST_NULL);
    stack.anull();
}

---

From source file:com.github.fge.grappa.transform.CodeBlock.java

License:Apache License

public CodeBlock aconst_null() {
    instructionList.add(new InsnNode(Opcodes.ACONST_NULL));
    return this;
}

---

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