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.

        //     pcInheritedFieldCount + <index>, inst.<field>, value, 0);
        ifins.setTarget(loadManagedInstance(code, true));
        code.getfield().setField(SM, SMTYPE);
        loadManagedInstance(code, true);
        code.getstatic().setField(INHERIT, int.class);
        code.constant().setValue(index);
        code.iadd();
        loadManagedInstance(code, true);
        addGetManagedValueCode(code, fmd);
        code.xload().setParam(firstParamOffset);
        code.constant().setValue(0);

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        code.constant().setValue(index);
        code.iadd();
        loadManagedInstance(code, true);
        addGetManagedValueCode(code, fmd);
        code.xload().setParam(firstParamOffset);
        code.constant().setValue(0);
        code.invokeinterface().setMethod(getStateManagerMethod
            (fmd.getDeclaredType(), "setting", false, true));
        code.vreturn();


        code.calculateMaxStack();

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            // return pcDetachedState;
            loadManagedInstance(code, false);
            getfield(code, _managedType.getProject().loadClass(declarer),
                name);
        } else
            code.constant().setNull();
        code.areturn();
        code.calculateMaxLocals();
        code.calculateMaxStack();


        // public void pcSetDetachedState (Object state)

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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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        // mutate, and some setters are final and therefore not proxyable
        m = bc.declareMethod("computeFields", void.class, null);
        m.makeProtected();
        code = m.getCode(true);
        code.aload().setThis();
        code.constant().setValue(true);
        code.invokestatic().setMethod(Proxies.class, "dirty", void.class,
            new Class[] { Proxy.class, boolean.class });
        code.aload().setThis();
        code.invokespecial().setMethod(type, "computeFields", void.class, null);
        code.vreturn();

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        Class ret = meth.getReturnType();
        BCMethod m = bc.declareMethod(meth.getName(), ret, params);
        m.makePublic();
        Code code = m.getCode(true);
        code.aload().setThis();
        code.constant().setValue(true);
        code.invokestatic().setMethod(Proxies.class, "dirty", void.class,
            new Class[] { Proxy.class, boolean.class });
        code.aload().setThis();
        for (int i = 0; i < params.length; i++)
            code.xload().setParam(i).setType(params[i]);

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        BCMethod m = bc.declareMethod("writeReplace", Object.class, null);
        m.makeProtected();
        m.getExceptions(true).addException(ObjectStreamException.class);
        Code code = m.getCode(true);
        code.aload().setThis();
        code.constant().setValue(!runtime);
        code.invokestatic().setMethod(Proxies.class, "writeReplace", 
            Object.class, new Class[] { Proxy.class, boolean.class });
        code.areturn();
        code.calculateMaxLocals();
        code.calculateMaxStack();

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        JumpInstruction ifins = code.ifeq();
        code.aload().setLocal(ret);
        code.anew().setType(CollectionChangeTrackerImpl.class);
        code.dup();
        code.aload().setLocal(ret);
        code.constant().setValue(allowsDuplicates(type));
        code.constant().setValue(isOrdered(type));
        code.aload().setParam(3);
        code.invokespecial().setMethod(CollectionChangeTrackerImpl.class, 
            "<init>", void.class, new Class[] { Collection.class, 
            boolean.class, boolean.class, boolean.class });

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        code.aload().setLocal(ret);
        code.anew().setType(CollectionChangeTrackerImpl.class);
        code.dup();
        code.aload().setLocal(ret);
        code.constant().setValue(allowsDuplicates(type));
        code.constant().setValue(isOrdered(type));
        code.aload().setParam(3);
        code.invokespecial().setMethod(CollectionChangeTrackerImpl.class, 
            "<init>", void.class, new Class[] { Collection.class, 
            boolean.class, boolean.class, boolean.class });
        code.putfield().setField(changeTracker);

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            // return pcDetachedState;
            loadManagedInstance(code, false);
            getfield(code, _managedType.getProject().loadClass(declarer),
                name);
        } else
            code.constant().setNull();
        code.areturn();
        code.calculateMaxLocals();
        code.calculateMaxStack();


        // public void pcSetDetachedState (Object state)

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