Package serp.bytecode

Examples of serp.bytecode.JumpInstruction

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        int firstParamOffset = getAccessorParameterOffset();

        // if (inst.pcStateManager == null) inst.<field> = value;
        loadManagedInstance(code, true);
        code.getfield().setField(SM, SMTYPE);
        JumpInstruction ifins = code.ifnonnull();
        loadManagedInstance(code, true);
        code.xload().setParam(firstParamOffset);
        addSetManagedValueCode(code, fmd);
        if(fmd.isVersion()==true && _addVersionInitFlag){
            // if we are setting the version, flip the versionInit flag to true
            FieldMetaData v = _meta.addDeclaredField(VERSION_INIT_STR, boolean.class);
            v.setTransient(true);
            loadManagedInstance(code, true);
            code.constant().setValue(1);
            addSetManagedValueCode(code, v);  
        }
        code.vreturn();

        // inst.pcStateManager.setting<fieldType>Field (inst,
        //     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();
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        loadManagedInstance(code, false);
        code.aload().setParam(0);
        code.invokevirtual().setMethod(getType(_meta),
            PRE + "WriteUnmanaged", void.class, outargs);

        JumpInstruction go2 = null;
        if (detachedState) {
            // if (sm != null)
            //   if (sm.writeDetached (out))
            //      return;
            loadManagedInstance(code, false);
            code.getfield().setField(SM, SMTYPE);
            IfInstruction ifnull = code.ifnull();
            loadManagedInstance(code, false);
            code.getfield().setField(SM, SMTYPE);
            code.aload().setParam(0);
            code.invokeinterface().setMethod(SMTYPE, "writeDetached",
                boolean.class, outargs);
            go2 = code.ifeq();
            code.vreturn();

            // else
            //   out.writeObject (pcGetDetachedState ());
            Class[] objargs = new Class[]{ Object.class };
            ifnull.setTarget(code.aload().setParam(0));
            loadManagedInstance(code, false);
            code.invokevirtual().setMethod(PRE + "GetDetachedState",
                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());

        // write managed fields
        FieldMetaData[] fmds = _meta.getFields();
        for (int i = 0; i < fmds.length; i++)
            if (!fmds[i].isTransient())
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            //     setImplData(sm.getImplData());
            impl = addBeanField(bc, "implData", Object.class);
            code.aload().setParam(0);
            code.invokeinterface().setMethod(OpenJPAStateManager.class,
                "isImplDataCacheable", boolean.class, null);
            JumpInstruction ifins = code.ifeq();
            code.aload().setThis();
            code.aload().setParam(0);
            code.invokeinterface().setMethod(OpenJPAStateManager.class,
                "getImplData", Object.class, null);
            code.invokevirtual().setMethod("setImplData", void.class,
                new Class[]{ Object.class });
            ifins.setTarget(code.vreturn());
        }
        code.calculateMaxStack();
        code.calculateMaxLocals();

        // void loadImplData(OpenJPAStateManager);
        meth = bc.declareMethod("loadImplData", void.class,
            new Class[]{ OpenJPAStateManager.class });
        code = meth.getCode(true);
        if (!usesImplData(meta))
            code.vreturn();
        else {
            // if (sm.getImplData() == null && implData != null)
            //     sm.setImplData(impl, true);
            code.aload().setParam(0);
            code.invokeinterface().setMethod(OpenJPAStateManager.class,
                "getImplData", Object.class, null);
            JumpInstruction ifins = code.ifnonnull();
            code.aload().setThis();
            code.getfield().setField(impl);
            JumpInstruction ifins2 = code.ifnull();
            code.aload().setParam(0);
            code.aload().setThis();
            code.getfield().setField(impl);
            code.constant().setValue(true);
            code.invokeinterface().setMethod(OpenJPAStateManager.class,
                "setImplData", void.class,
                new Class[]{ Object.class, boolean.class });
            Instruction ins = code.vreturn();
            ifins.setTarget(ins);
            ifins2.setTarget(ins);
        }
        code.calculateMaxStack();
        code.calculateMaxLocals();
    }
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            impl.makePrivate();

            // if (fieldImpl != null)
            code.aload().setThis();
            code.getfield().setField(impl);
            JumpInstruction ifins = code.ifnonnull();
            code.vreturn();

            // Object obj = null;
            int obj = code.getNextLocalsIndex();
            ifins.setTarget(code.constant().setNull());
            code.astore().setLocal(obj);

            // establish switch target, then move before it
            Instruction target = code.aload().setLocal(obj);
            code.previous();

            // switch(i)
            code.iload().setParam(1);
            LookupSwitchInstruction lswitch = code.lookupswitch();
            FieldMetaData[] fields = meta.getFields();
            int cacheable = 0;
            for (int i = 0; i < fields.length; i++) {
                if (!usesImplData(fields[i]))
                    continue;
                // case x: obj = fieldImpl[y]; break;
                lswitch.addCase(i, code.aload().setThis());
                code.getfield().setField(impl);
                code.constant().setValue(cacheable++);
                code.aaload();
                code.astore().setLocal(obj);
                code.go2().setTarget(target);
            }
            lswitch.setDefaultTarget(target);

            // if (obj != null)
            code.next();    // jump back over target
            ifins = code.ifnonnull();
            code.vreturn();

            // sm.setImplData(index, impl);
            ifins.setTarget(code.aload().setParam(0));
            code.iload().setParam(1);
            code.aload().setLocal(obj);
            code.invokeinterface().setMethod(OpenJPAStateManager.class,
                "setImplData", void.class,
                new Class[]{ int.class, Object.class });
            code.vreturn();
        }
        code.calculateMaxLocals();
        code.calculateMaxStack();

        // void storeImplData(OpenJPAStateManager sm, int index, boolean loaded)
        meth = bc.declareMethod("storeImplData", void.class,
            new Class[]{ OpenJPAStateManager.class, int.class, boolean.class });
        code = meth.getCode(true);
        if (count == 0)
            code.vreturn();
        else {
            // int arrIdx = -1;
            // switch(index)
            int arrIdx = code.getNextLocalsIndex();
            code.constant().setValue(-1);
            code.istore().setLocal(arrIdx);
            code.iload().setParam(1);
            LookupSwitchInstruction lswitch = code.lookupswitch();

            // establish switch target, then move before it
            Instruction switchTarget = code.iload().setLocal(arrIdx);
            code.previous();

            FieldMetaData[] fields = meta.getFields();
            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

            // 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();
            code.previous();

            // if (loaded)
            ifins.setTarget(code.iload().setParam(2));
            code.ifeq().setTarget(nullTarget);

            // Object obj = sm.getImplData(index)
            int obj = code.getNextLocalsIndex();
            code.aload().setParam(0);
            code.iload().setParam(1);
            code.invokeinterface().setMethod(OpenJPAStateManager.class,
                "getImplData", Object.class, new Class[]{ int.class });
            code.astore().setLocal(obj);

            // if (obj != null)
            code.aload().setLocal(obj);
            code.ifnull().setTarget(nullTarget);

            // if (fieldImpl == null)
            //     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;
            ifins.setTarget(code.aload().setThis());
            code.getfield().setField(impl);
            code.iload().setLocal(arrIdx);
            code.aload().setLocal(obj);
            code.aastore();
            code.vreturn();

            // if (fieldImpl != null)
            //     fieldImpl[index] = null;
            code.next(); // step over nullTarget
            code.getfield().setField(impl);
            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();
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        // if (sm.getVersion() == null)
        //     sm.setVersion(version);
        code.aload().setParam(0);
        code.invokeinterface().setMethod(OpenJPAStateManager.class,
            "getVersion", Object.class, null);
        JumpInstruction ifins = code.ifnonnull();
        code.aload().setParam(0);
        code.aload().setThis();
        code.getfield().setField("version", Object.class);
        code.invokeinterface()
            .setMethod(OpenJPAStateManager.class, "setVersion",
                void.class, new Class[]{ Object.class });
        ifins.setTarget(code.vreturn());
        code.calculateMaxStack();
        code.calculateMaxLocals();
    }
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        code.aload().setParam(0);
        code.putfield().setField(elementType);

        // create change tracker and set it
        code.iload().setParam(2);
        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.invokespecial().setMethod(CollectionChangeTrackerImpl.class,
            "<init>", void.class, new Class[] { Collection.class,
            boolean.class, boolean.class });
        code.putfield().setField(changeTracker);

        ifins.setTarget(code.aload().setLocal(ret));
        code.areturn();
        code.calculateMaxStack();
        code.calculateMaxLocals();
    }
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                    boolean.class, new Class[]{ int.class });
                jumps.add(code.ifeq());
            }
            addStore(bc, code, fmds[i], objectCount);
            if (usesIntermediate(fmds[i])) {
                JumpInstruction elseIns = code.go2();
                // else if (!loaded.get(index))
                setTarget(code.aload().setThis(), jumps);
                jumps.add(elseIns);
                code.getfield().setField("loaded", BitSet.class);
                code.constant().setValue(i);
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            //     loaded.set(index);
            //   objects[objectCount] = val;
            code.aload().setLocal(local);
            code.getstatic().setField(AbstractPCData.class, "NULL",
                Object.class);
            JumpInstruction ifins = code.ifacmpne();
            code.constant().setNull();
            code.astore().setLocal(local);
            code.aload().setThis();
            code.getfield().setField("loaded", BitSet.class);
            code.constant().setValue(index);
            code.invokevirtual().setMethod(BitSet.class, "clear", void.class,
                new Class[]{ int.class });
            JumpInstruction go2 = code.go2();
            ifins.setTarget(code.aload().setThis());
            code.getfield().setField("loaded", BitSet.class);
            code.constant().setValue(index);
            code.invokevirtual().setMethod(BitSet.class, "set", void.class,
                new Class[]{ int.class });
            go2.setTarget(code.aload().setThis());
            code.getfield().setField("objects", Object[].class);
            code.constant().setValue(objectCount);
            code.aload().setLocal(local);
            code.aastore();
        }
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        code.aload().setParam(1);
        code.putfield().setField(valueType);

        // create change tracker and set it
        code.iload().setParam(3);
        JumpInstruction ifins = code.ifeq();
        code.aload().setLocal(ret);
        code.anew().setType(MapChangeTrackerImpl.class);
        code.dup();
        code.aload().setLocal(ret);
        code.invokespecial().setMethod(MapChangeTrackerImpl.class,
            "<init>", void.class, new Class[] { Map.class });
        code.putfield().setField(changeTracker);

        ifins.setTarget(code.aload().setLocal(ret));
        code.areturn();
        code.calculateMaxStack();
        code.calculateMaxLocals();
    }
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        code.astore().setLocal(inst);

        // if (clear)
        //   pc.pcClearFields ();
        code.iload().setParam((oid) ? 2 : 1);
        JumpInstruction noclear = code.ifeq();
        code.aload().setLocal(inst);
        code.invokevirtual().setMethod(PRE + "ClearFields", void.class, null);

        // pc.pcStateManager = sm;
        noclear.setTarget(code.aload().setLocal(inst));
        code.aload().setParam(0);
        code.putfield().setField(SM, SMTYPE);

        // copy key fields from oid
        if (oid) {
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Related Classes of serp.bytecode.JumpInstruction

  • org.apache.openjpa.datacache.DataCachePCDataGenerator
  • org.apache.openjpa.enhance.DynamicStorageGenerator
  • org.apache.openjpa.enhance.PCDataGenerator
  • org.apache.openjpa.enhance.PCEnhancer
  • org.apache.openjpa.util.ProxyManagerImpl
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