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.

            int cacheable = 0;
            for (int i = 0; i < fields.length; i++) {
                if (!usesImplData(fields[i]))
                    continue;
                // case x: arrIdx = y; break;
                lswitch.addCase(i, code.constant().setValue(cacheable++));
                code.istore().setLocal(arrIdx);
                code.go2().setTarget(switchTarget);
            }
            lswitch.setDefaultTarget(switchTarget);
            code.next();    // step over switch target

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            }
            lswitch.setDefaultTarget(switchTarget);
            code.next();    // step over switch target


            // if (arrIdx != -1)
            code.constant().setValue(-1);
            JumpInstruction ifins = code.ificmpne();
            code.vreturn();


            // create null target, then move before it
            Instruction nullTarget = code.aload().setThis();

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            //     fieldImpl = new Object[fields];
            code.aload().setThis();
            code.getfield().setField(impl);
            ifins = code.ifnonnull();
            code.aload().setThis();
            code.constant().setValue(count);
            code.anewarray().setType(Object.class);
            code.putfield().setField(impl);


            // fieldImpl[arrIdx] = obj;
            // return;

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            ifins = code.ifnonnull();
            code.vreturn();
            ifins.setTarget(code.aload().setThis());
            code.getfield().setField(impl);
            code.iload().setLocal(arrIdx);
            code.constant().setNull();
            code.aastore();
            code.vreturn();
        }
        code.calculateMaxStack();
        code.calculateMaxLocals();

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        FieldMetaData[] fmds = meta.getFields();
        Collection jumps = new LinkedList();
        Collection jumps2;
    
        int local = code.getNextLocalsIndex();
        code.constant().setNull();
        code.astore().setLocal(local);
        int inter = code.getNextLocalsIndex();
        code.constant().setNull();
        code.astore().setLocal(inter);

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        int local = code.getNextLocalsIndex();
        code.constant().setNull();
        code.astore().setLocal(local);
        int inter = code.getNextLocalsIndex();
        code.constant().setNull();
        code.astore().setLocal(inter);


        int objectCount = 0;
        boolean intermediate;
        for (int i = 0; i < fmds.length; i++) {

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            jumps2 = new LinkedList();
            intermediate = usesIntermediate(fmds[i]);
            setTarget(code.aload().setThis(), jumps);
            // if (loaded.get(i)) or (!loaded.get(i)) depending on inter resp
            code.getfield().setField("loaded", BitSet.class);
            code.constant().setValue(i);
            code.invokevirtual().setMethod(BitSet.class, "get",
                boolean.class, new Class[]{ int.class });
            jumps.add(code.ifne());


            if (intermediate)

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            // if (fetch.requiresFetch(fmds[i])!=FetchConfiguration.FETCH_NONE)
            setTarget(code.aload().setParam(1), jumps);
            code.aload().setParam(0);
            code.invokeinterface().setMethod(OpenJPAStateManager.class,
                "getMetaData", ClassMetaData.class, null);
            code.constant().setValue(fmds[i].getIndex());
            code.invokevirtual().setMethod(ClassMetaData.class,
                "getField", FieldMetaData.class, new Class[]{int.class});
            code.invokeinterface().setMethod (FetchConfiguration.class, 
                "requiresFetch", int.class, new Class[]{FieldMetaData.class});
            code.constant().setValue(FetchConfiguration.FETCH_NONE);

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            code.constant().setValue(fmds[i].getIndex());
            code.invokevirtual().setMethod(ClassMetaData.class,
                "getField", FieldMetaData.class, new Class[]{int.class});
            code.invokeinterface().setMethod (FetchConfiguration.class, 
                "requiresFetch", int.class, new Class[]{FieldMetaData.class});
            code.constant().setValue(FetchConfiguration.FETCH_NONE);
            jumps2.add(code.ificmpeq());
            addLoad(bc, code, fmds[i], objectCount, local, false);


            jumps = jumps2;
            if (replaceType(fmds[i]) >= JavaTypes.OBJECT)

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        // awhite: the above should work, but I'm seeing a messed up situation
        // all of a sudden where when a subclass calls this method, it somehow
        // happens before <clinit> is ever invoked, and so our
        // pcInheritedFieldCount field isn't initialized!  so instead,
        // return <fields> + <superclass>.pcGetManagedFieldCount ()
        code.constant().setValue(_meta.getDeclaredFields().length);
        if (_meta.getPCSuperclass() != null) {
            Class superClass = getType(_meta.getPCSuperclassMetaData());
            String superName = getCreateSubclass() ?
                PCEnhancer.toPCSubclassName(superClass) :
                superClass.getName();

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