Examples of serp.bytecode.Code.constant()

serp.bytecode.Code.constant()
Load some constant onto the stack. The {@link ConstantInstruction}type takes any constant and correctly translates it into the proper opcode, depending on the constant type and value. For example, if the constant value is set to 0L, the opcode will be set to lconst0.

                    if (Modifier.isPublic(field.getModifiers()))
                        code.getfield().setField(field);
                    else {
                        // Reflection.getXXX(oid, Reflection.findField(...));
                        code.classconstant().setClass(oidType);
                        code.constant().setValue(name);
                        code.constant().setValue(true);
                        code.invokestatic().setMethod(Reflection.class,
                            "findField", Field.class, new Class[] { 
                            Class.class, String.class, boolean.class });
                        code.invokestatic().setMethod

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                        code.getfield().setField(field);
                    else {
                        // Reflection.getXXX(oid, Reflection.findField(...));
                        code.classconstant().setClass(oidType);
                        code.constant().setValue(name);
                        code.constant().setValue(true);
                        code.invokestatic().setMethod(Reflection.class,
                            "findField", Field.class, new Class[] { 
                            Class.class, String.class, boolean.class });
                        code.invokestatic().setMethod
                            (getReflectionGetterMethod(type, Field.class));

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                    if (Modifier.isPublic(getter.getModifiers()))
                        code.invokevirtual().setMethod(getter);
                    else {
                        // Reflection.getXXX(oid, Reflection.findGetter(...));
                        code.classconstant().setClass(oidType);
                        code.constant().setValue(name);
                        code.constant().setValue(true);
                        code.invokestatic().setMethod(Reflection.class,
                            "findGetter", Method.class, new Class[] {
                            Class.class, String.class, boolean.class });
                        code.invokestatic().setMethod

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                        code.invokevirtual().setMethod(getter);
                    else {
                        // Reflection.getXXX(oid, Reflection.findGetter(...));
                        code.classconstant().setClass(oidType);
                        code.constant().setValue(name);
                        code.constant().setValue(true);
                        code.invokestatic().setMethod(Reflection.class,
                            "findGetter", Method.class, new Class[] {
                            Class.class, String.class, boolean.class });
                        code.invokestatic().setMethod
                            (getReflectionGetterMethod(type, Method.class));

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            // throw new IllegalArgumentException (...);
            String msg = _loc.get("str-cons", oidType,
                _meta.getDescribedType()).getMessage();
            code.anew().setType(IllegalArgumentException.class);
            code.dup();
            code.constant().setValue(msg);
            code.invokespecial().setMethod(IllegalArgumentException.class,
                "<init>", void.class, new Class[]{ String.class });
            code.athrow();
            code.vreturn();

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     */
    private void addStaticInitializer() {
        Code code = getOrCreateClassInitCode(true);
        if (_meta.getPCSuperclass() != null) {
            if (getCreateSubclass()) {
                code.constant().setValue(0);
                code.putstatic().setField(INHERIT, int.class);
            } else {
                // pcInheritedFieldCount = <superClass>.pcGetManagedFieldCount()
                code.invokestatic().setMethod(getType(_meta.
                    getPCSuperclassMetaData()).getName(),

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                Object.class, null);
            code.invokeinterface().setMethod(ObjectOutput.class,
                "writeObject", void.class, objargs);
            //    out.writeObject (null) // StateManager
            code.aload().setParam(0);
            code.constant().setValue((Object) null);
            code.invokeinterface().setMethod(ObjectOutput.class,
                "writeObject", void.class, objargs);
        }
        if (go2 != null)
            go2.setTarget(code.nop());

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        // public int getEnhancementContractVersion()
        BCMethod method = _pc.declareMethod(PRE + 
                "GetEnhancementContractVersion", int.class, null);
        method.makePublic();
        Code code = method.getCode(true);
        code.constant().setValue(ENHANCER_VERSION);
        code.ireturn();
        code.calculateMaxStack();
        code.calculateMaxLocals();
    }

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        code.beforeFirst();
        if (code.searchForward(template)) {
            // ((<type>) clone).pcStateManager = null;
            code.dup();
            code.checkcast().setType(_pc);
            code.constant().setNull();
            code.putfield().setField(SM, SMTYPE);


            // if modified, increase stack
            code.calculateMaxStack();
            code.calculateMaxLocals();

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        code.xreturn().setType(fmd.getDeclaredType());


        // int field = pcInheritedFieldCount + <fieldindex>;
        int fieldLocal = code.getNextLocalsIndex();
        ifins.setTarget(code.getstatic().setField(INHERIT, int.class));
        code.constant().setValue(index);
        code.iadd();
        code.istore().setLocal(fieldLocal);


        // inst.pcStateManager.accessingField (field);
        // return inst.<field>;

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