mirror of https://github.com/apache/openjpa.git
OPENJPA-2911 PCDataGenerator#store via ASM
This commit is contained in:
Mark Struberg
parent
07edae25bf
commit
8759f6fa7e
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@ -20,7 +20,6 @@ package org.apache.openjpa.enhance;
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import java.util.BitSet;
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import java.util.Collection;
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import java.util.LinkedList;
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import java.util.Map;
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import java.util.concurrent.ConcurrentHashMap;
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@ -175,11 +174,11 @@ public class PCDataGenerator extends DynamicStorageGenerator {
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addFieldImplDataMethods(bc, meta);
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addLoadMethod(bc, meta);
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addLoadWithFieldsMethod(bc, meta);
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addStoreMethods(bc, meta);
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BCClass _bc = new Project().loadClass(bc.getClassNode().name.replace("/", "."));
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AsmHelper.readIntoBCClass(bc, _bc);
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addStoreMethods(_bc, meta);
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addNewEmbedded(_bc);
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addGetData(_bc);
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@ -955,141 +954,198 @@ public class PCDataGenerator extends DynamicStorageGenerator {
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instructions.add(lblEndIf);
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}
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private void addStoreMethods(BCClass bc, ClassMetaData meta) {
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private void addStoreMethods(ClassNodeTracker cnt, ClassMetaData meta) {
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// i.e. void store(OpenJPAStateManager sm, BitSet fields);
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addStoreMethod(bc, meta, true);
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addStoreMethod(cnt, meta, true);
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// i.e. void store(OpenJPAStateManager sm);
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addStoreMethod(bc, meta, false);
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addStoreMethod(cnt, meta, false);
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}
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private void addStoreMethod(BCClass bc, ClassMetaData meta, boolean fields) {
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BCMethod store;
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if (fields)
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store = bc.declareMethod("store", void.class,
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new Class[]{ OpenJPAStateManager.class, BitSet.class });
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else
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store = bc.declareMethod("store", void.class,
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new Class[]{ OpenJPAStateManager.class });
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Code code = store.getCode(true);
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private void addStoreMethod(ClassNodeTracker cnt, ClassMetaData meta, boolean fields) {
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MethodNode store;
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if (fields) {
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store = new MethodNode(Opcodes.ACC_PUBLIC | Opcodes.ACC_SYNCHRONIZED,
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"store",
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Type.getMethodDescriptor(Type.VOID_TYPE,
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Type.getType(OpenJPAStateManager.class), Type.getType(BitSet.class)),
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null, null);
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}
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else {
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store = new MethodNode(Opcodes.ACC_PUBLIC | Opcodes.ACC_SYNCHRONIZED,
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"store",
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Type.getMethodDescriptor(Type.VOID_TYPE,
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Type.getType(OpenJPAStateManager.class)),
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null, null);
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}
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ClassNode classNode = cnt.getClassNode();
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classNode.methods.add(store);
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InsnList instructions = store.instructions;
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// initialize();
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code.aload().setThis();
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code.invokevirtual().setMethod("initialize", void.class, null);
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instructions.add(new VarInsnNode(Opcodes.ALOAD, 0)); // this
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instructions.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL,
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classNode.name,
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"initialize",
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Type.getMethodDescriptor(Type.VOID_TYPE)));
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// storeVersion(sm);
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code.aload().setThis();
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code.aload().setParam(0);
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code.invokevirtual().setMethod("storeVersion", void.class,
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new Class[]{ OpenJPAStateManager.class });
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instructions.add(new VarInsnNode(Opcodes.ALOAD, 0)); // this
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instructions.add(new VarInsnNode(Opcodes.ALOAD, 1)); // 1st parameter
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instructions.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL,
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classNode.name,
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"storeVersion",
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Type.getMethodDescriptor(Type.VOID_TYPE, Type.getType(OpenJPAStateManager.class))));
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// storeImplData(sm);
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code.aload().setThis();
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code.aload().setParam(0);
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code.invokevirtual().setMethod("storeImplData", void.class,
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new Class[]{ OpenJPAStateManager.class });
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instructions.add(new VarInsnNode(Opcodes.ALOAD, 0)); // this
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instructions.add(new VarInsnNode(Opcodes.ALOAD, 1)); // 1st parameter
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instructions.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL,
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classNode.name,
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"storeImplData",
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Type.getMethodDescriptor(Type.VOID_TYPE, Type.getType(OpenJPAStateManager.class))));
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FieldMetaData[] fmds = meta.getFields();
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Collection<Instruction> jumps = new LinkedList<>();
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int objectCount = 0;
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for (int i = 0; i < fmds.length; i++) {
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LabelNode lblEndIf = new LabelNode();
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if (fields) {
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// if (fields != null && fields.get(index))
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setTarget(code.aload().setParam(1), jumps);
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jumps.add(code.ifnull());
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code.aload().setParam(1);
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code.constant().setValue(i);
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code.invokevirtual().setMethod(BitSet.class, "get",
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boolean.class, new Class[]{ int.class });
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jumps.add(code.ifeq());
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instructions.add(new VarInsnNode(Opcodes.ALOAD, 2)); // 2nd parameter, BitSet
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instructions.add(new JumpInsnNode(Opcodes.IFNULL, lblEndIf));
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instructions.add(new VarInsnNode(Opcodes.ALOAD, 2)); // 2nd parameter, BitSet
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instructions.add(AsmHelper.getLoadConstantInsn(i));
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instructions.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL,
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Type.getInternalName(BitSet.class),
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"get",
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Type.getMethodDescriptor(Type.BOOLEAN_TYPE, Type.INT_TYPE)));
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instructions.add(new JumpInsnNode(Opcodes.IFEQ, lblEndIf));
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} else {
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// if (sm.getLoaded().get(index)))
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setTarget(code.aload().setParam(0), jumps);
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code.invokeinterface().setMethod(OpenJPAStateManager.class,
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"getLoaded", BitSet.class, null);
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code.constant().setValue(i);
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code.invokevirtual().setMethod(BitSet.class, "get",
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boolean.class, new Class[]{ int.class });
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jumps.add(code.ifeq());
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instructions.add(new VarInsnNode(Opcodes.ALOAD, 1)); // 1st parameter, OpenJPAStateManager
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instructions.add(new MethodInsnNode(Opcodes.INVOKEINTERFACE,
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Type.getInternalName(OpenJPAStateManager.class),
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"getLoaded",
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Type.getMethodDescriptor(Type.getType(BitSet.class))));
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instructions.add(AsmHelper.getLoadConstantInsn(i));
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instructions.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL,
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Type.getInternalName(BitSet.class),
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"get",
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Type.getMethodDescriptor(Type.BOOLEAN_TYPE, Type.INT_TYPE)));
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instructions.add(new JumpInsnNode(Opcodes.IFEQ, lblEndIf));
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}
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addStore(bc, code, fmds[i], objectCount);
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addStore(classNode, store, instructions, fmds[i], objectCount);
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if (usesIntermediate(fmds[i])) {
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JumpInstruction elseIns = code.go2();
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// else if (!loaded.get(index))
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setTarget(code.aload().setThis(), jumps);
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jumps.add(elseIns);
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code.getfield().setField("loaded", BitSet.class);
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code.constant().setValue(i);
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code.invokevirtual().setMethod(BitSet.class, "get",
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boolean.class, new Class[]{ int.class });
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jumps.add(code.ifne());
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// } else { ..
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LabelNode lblEndElse = new LabelNode(); // new jump target for end else
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instructions.add(new JumpInsnNode(Opcodes.GOTO, lblEndElse));
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instructions.add(lblEndIf); // actually this is now the begin of the else part
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lblEndIf = new LabelNode(); //X TODO not sure!
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// if (!loaded.get(index))
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instructions.add(new VarInsnNode(Opcodes.ALOAD, 0)); // this
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instructions.add(new FieldInsnNode(Opcodes.GETFIELD, classNode.name, "loaded", Type.getDescriptor(BitSet.class)));
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instructions.add(AsmHelper.getLoadConstantInsn(i));
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instructions.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL,
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Type.getInternalName(BitSet.class),
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"get",
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Type.getMethodDescriptor(Type.BOOLEAN_TYPE, Type.INT_TYPE)));
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instructions.add(new JumpInsnNode(Opcodes.IFNE, lblEndElse));
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// Object val = sm.getIntermediate(index);
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// if (val != null)
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// objects[objectCount] = val;
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code.aload().setParam(0);
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code.constant().setValue(i);
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code.invokeinterface().setMethod(OpenJPAStateManager.class,
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"getIntermediate", Object.class, new Class[]{ int.class });
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int local = code.getNextLocalsIndex();
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code.astore().setLocal(local);
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code.aload().setLocal(local);
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jumps.add(code.ifnull());
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code.aload().setThis();
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code.getfield().setField("objects", Object[].class);
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code.constant().setValue(objectCount);
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code.aload().setLocal(local);
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code.aastore();
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instructions.add(new VarInsnNode(Opcodes.ALOAD, 1)); // 1st parameter
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instructions.add(AsmHelper.getLoadConstantInsn(i));
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instructions.add(new MethodInsnNode(Opcodes.INVOKEINTERFACE,
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Type.getInternalName(OpenJPAStateManager.class),
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"getIntermediate",
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Type.getMethodDescriptor(AsmHelper.TYPE_OBJECT, Type.INT_TYPE)));
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int localVarPos = AsmHelper.getLocalVarPos(store);
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instructions.add(new VarInsnNode(Opcodes.ASTORE, localVarPos));
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instructions.add(new VarInsnNode(Opcodes.ALOAD, localVarPos));
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instructions.add(new JumpInsnNode(Opcodes.IFNULL, lblEndElse));
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instructions.add(new VarInsnNode(Opcodes.ALOAD, 0)); // this
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instructions.add(new FieldInsnNode(Opcodes.GETFIELD, classNode.name, "objects", Type.getDescriptor(Object[].class)));
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instructions.add(AsmHelper.getLoadConstantInsn(objectCount));
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instructions.add(new VarInsnNode(Opcodes.ALOAD, localVarPos));
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instructions.add(new InsnNode(Opcodes.AASTORE));
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instructions.add(lblEndElse);
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}
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if (lblEndIf != null) {
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instructions.add(lblEndIf);
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}
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if (replaceType(fmds[i]) >= JavaTypes.OBJECT)
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objectCount++;
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}
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setTarget(code.vreturn(), jumps);
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code.calculateMaxLocals();
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code.calculateMaxStack();
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instructions.add(new InsnNode(Opcodes.RETURN));
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}
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private void addStore(BCClass bc, Code code, FieldMetaData fmd,
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int objectCount) {
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private void addStore(ClassNode classNode, MethodNode meth, InsnList instructions, FieldMetaData fmd, int objectCount) {
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int typeCode = replaceType(fmd);
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int index = fmd.getIndex();
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if (typeCode < JavaTypes.OBJECT) {
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Class<?> type = forType(typeCode);
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// field<i> = sm.fetch<Type>(index)
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code.aload().setThis();
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code.aload().setParam(0);
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code.constant().setValue(index);
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code.invokeinterface().setMethod(OpenJPAStateManager.class,
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"fetch" + StringUtil.capitalize(type.getName()), type,
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new Class[]{ int.class });
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code.putfield().setField(getFieldName(index), type);
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code.aload().setThis();
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code.getfield().setField("loaded", BitSet.class);
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code.constant().setValue(index);
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code.invokevirtual().setMethod(BitSet.class, "set", void.class,
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new Class[]{ int.class });
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} else {
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instructions.add(new VarInsnNode(Opcodes.ALOAD, 0)); // this
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instructions.add(new VarInsnNode(Opcodes.ALOAD, 1)); // 1st param
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instructions.add(AsmHelper.getLoadConstantInsn(index));
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instructions.add(new MethodInsnNode(Opcodes.INVOKEINTERFACE,
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Type.getInternalName(OpenJPAStateManager.class),
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"fetch" + StringUtil.capitalize(type.getName()),
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Type.getMethodDescriptor(Type.getType(type), Type.INT_TYPE)));
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instructions.add(new FieldInsnNode(Opcodes.PUTFIELD, classNode.name, getFieldName(index), Type.getDescriptor(type)));
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instructions.add(new VarInsnNode(Opcodes.ALOAD, 0)); // this
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instructions.add(new FieldInsnNode(Opcodes.GETFIELD, classNode.name, "loaded", Type.getDescriptor(BitSet.class)));
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instructions.add(AsmHelper.getLoadConstantInsn(index));
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instructions.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL,
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Type.getInternalName(BitSet.class),
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"set",
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Type.getMethodDescriptor(Type.VOID_TYPE, Type.INT_TYPE)));
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}
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else {
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// Object val = toData(sm.getMetaData().getField(index),
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// sm.fetchField(index, false), sm.getContext());
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int local = code.getNextLocalsIndex();
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code.aload().setThis();
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code.aload().setParam(0);
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code.invokeinterface().setMethod(OpenJPAStateManager.class,
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"getMetaData", ClassMetaData.class, null);
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code.constant().setValue(fmd.getIndex());
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code.invokevirtual().setMethod(ClassMetaData.class,
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"getField", FieldMetaData.class, new Class[]{ int.class });
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code.aload().setParam(0);
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code.constant().setValue(fmd.getIndex());
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code.constant().setValue(false);
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code.invokeinterface().setMethod(OpenJPAStateManager.class,
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"fetchField", Object.class, new Class[]
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{ int.class, boolean.class });
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code.aload().setParam(0);
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code.invokeinterface().setMethod(OpenJPAStateManager.class,
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"getContext", StoreContext.class, null);
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code.invokevirtual().setMethod(bc.getName(), "toData",
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Object.class.getName(), toStrings(new Class []{
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FieldMetaData.class, Object.class, StoreContext.class }));
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code.astore().setLocal(local);
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int localVarPos = AsmHelper.getLocalVarPos(meth);
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instructions.add(new VarInsnNode(Opcodes.ALOAD, 0)); // this
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instructions.add(new VarInsnNode(Opcodes.ALOAD, 1)); // 1st param
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instructions.add(new MethodInsnNode(Opcodes.INVOKEINTERFACE,
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Type.getInternalName(OpenJPAStateManager.class),
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"getMetaData",
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Type.getMethodDescriptor(Type.getType(ClassMetaData.class))));
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instructions.add(AsmHelper.getLoadConstantInsn(fmd.getIndex()));
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instructions.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL,
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Type.getInternalName(ClassMetaData.class),
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"getField",
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Type.getMethodDescriptor(Type.getType(FieldMetaData.class), Type.INT_TYPE)));
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instructions.add(new VarInsnNode(Opcodes.ALOAD, 1)); // 1st param
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instructions.add(AsmHelper.getLoadConstantInsn(fmd.getIndex()));
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instructions.add(AsmHelper.getLoadConstantInsn(false));
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instructions.add(new MethodInsnNode(Opcodes.INVOKEINTERFACE,
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Type.getInternalName(OpenJPAStateManager.class),
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"fetchField",
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Type.getMethodDescriptor(AsmHelper.TYPE_OBJECT, Type.INT_TYPE, Type.BOOLEAN_TYPE)));
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instructions.add(new VarInsnNode(Opcodes.ALOAD, 1)); // 1st param
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instructions.add(new MethodInsnNode(Opcodes.INVOKEINTERFACE,
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Type.getInternalName(OpenJPAStateManager.class),
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"getContext",
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Type.getMethodDescriptor(Type.getType(StoreContext.class))));
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instructions.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL,
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classNode.name,
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"toData",
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Type.getMethodDescriptor(AsmHelper.TYPE_OBJECT,
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Type.getType(FieldMetaData.class),
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AsmHelper.TYPE_OBJECT,
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Type.getType(StoreContext.class))));
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instructions.add(new VarInsnNode(Opcodes.ASTORE, localVarPos));
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// if (val == NULL) {
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// val = null;
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@ -1097,43 +1153,59 @@ public class PCDataGenerator extends DynamicStorageGenerator {
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// } else
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// loaded.set(index);
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// objects[objectCount] = val;
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code.aload().setLocal(local);
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code.getstatic().setField(AbstractPCData.class, "NULL",
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Object.class);
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JumpInstruction ifins = code.ifacmpne();
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code.constant().setNull();
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code.astore().setLocal(local);
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code.aload().setThis();
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code.getfield().setField("loaded", BitSet.class);
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code.constant().setValue(index);
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code.invokevirtual().setMethod(BitSet.class, "clear", void.class,
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new Class[]{ int.class });
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JumpInstruction go2 = code.go2();
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ifins.setTarget(code.aload().setThis());
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code.getfield().setField("loaded", BitSet.class);
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code.constant().setValue(index);
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code.invokevirtual().setMethod(BitSet.class, "set", void.class,
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new Class[]{ int.class });
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go2.setTarget(code.aload().setThis());
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code.getfield().setField("objects", Object[].class);
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code.constant().setValue(objectCount);
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code.aload().setLocal(local);
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code.aastore();
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instructions.add(new VarInsnNode(Opcodes.ALOAD, localVarPos));
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instructions.add(new FieldInsnNode(Opcodes.GETSTATIC, Type.getInternalName(AbstractPCData.class),
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"NULL", AsmHelper.TYPE_OBJECT.getDescriptor()));
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LabelNode lblElse = new LabelNode();
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instructions.add(new JumpInsnNode(Opcodes.IF_ACMPNE, lblElse));
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instructions.add(new InsnNode(Opcodes.ACONST_NULL));
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instructions.add(new VarInsnNode(Opcodes.ASTORE, localVarPos));
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instructions.add(new VarInsnNode(Opcodes.ALOAD, 0)); // this
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instructions.add(new FieldInsnNode(Opcodes.GETFIELD, classNode.name, "loaded", Type.getDescriptor(BitSet.class)));
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instructions.add(AsmHelper.getLoadConstantInsn(index));
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instructions.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL,
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Type.getInternalName(BitSet.class),
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"clear",
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Type.getMethodDescriptor(Type.VOID_TYPE, Type.INT_TYPE)));
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LabelNode lblEndIf = new LabelNode();
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instructions.add(new JumpInsnNode(Opcodes.GOTO, lblEndIf));
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instructions.add(lblElse);
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instructions.add(new VarInsnNode(Opcodes.ALOAD, 0)); // this
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instructions.add(new FieldInsnNode(Opcodes.GETFIELD, classNode.name, "loaded", Type.getDescriptor(BitSet.class)));
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instructions.add(AsmHelper.getLoadConstantInsn(index));
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instructions.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL,
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Type.getInternalName(BitSet.class),
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"set",
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Type.getMethodDescriptor(Type.VOID_TYPE, Type.INT_TYPE)));
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instructions.add(lblEndIf);
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instructions.add(new VarInsnNode(Opcodes.ALOAD, 0)); // this
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instructions.add(new FieldInsnNode(Opcodes.GETFIELD, classNode.name, "objects", Type.getDescriptor(Object[].class)));
|
||||
instructions.add(AsmHelper.getLoadConstantInsn(objectCount));
|
||||
instructions.add(new VarInsnNode(Opcodes.ALOAD, localVarPos));
|
||||
instructions.add(new InsnNode(Opcodes.AASTORE));
|
||||
}
|
||||
if (!usesImplData(fmd))
|
||||
if (!usesImplData(fmd)) {
|
||||
return;
|
||||
}
|
||||
|
||||
// storeImplData(sm, i, loaded.get(i);
|
||||
code.aload().setThis();
|
||||
code.aload().setParam(0);
|
||||
code.constant().setValue(index);
|
||||
code.aload().setThis();
|
||||
code.getfield().setField("loaded", BitSet.class);
|
||||
code.constant().setValue(index);
|
||||
code.invokevirtual().setMethod(BitSet.class, "get", boolean.class,
|
||||
new Class[]{ int.class });
|
||||
code.invokevirtual().setMethod("storeImplData", void.class,
|
||||
new Class[]{ OpenJPAStateManager.class, int.class, boolean.class });
|
||||
instructions.add(new VarInsnNode(Opcodes.ALOAD, 0)); // this
|
||||
instructions.add(new VarInsnNode(Opcodes.ALOAD, 1)); // 1st param
|
||||
instructions.add(AsmHelper.getLoadConstantInsn(index));
|
||||
instructions.add(new VarInsnNode(Opcodes.ALOAD, 0)); // this
|
||||
instructions.add(new FieldInsnNode(Opcodes.GETFIELD, classNode.name, "loaded", Type.getDescriptor(BitSet.class)));
|
||||
instructions.add(AsmHelper.getLoadConstantInsn(index));
|
||||
instructions.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL,
|
||||
Type.getInternalName(BitSet.class),
|
||||
"get",
|
||||
Type.getMethodDescriptor(Type.BOOLEAN_TYPE, Type.INT_TYPE)));
|
||||
instructions.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL,
|
||||
classNode.name,
|
||||
"storeImplData",
|
||||
Type.getMethodDescriptor(Type.VOID_TYPE,
|
||||
Type.getType(OpenJPAStateManager.class), Type.INT_TYPE, Type.BOOLEAN_TYPE)));
|
||||
}
|
||||
|
||||
private void addNewEmbedded(BCClass bc) {
|
||||
|
|
|
|||
Loading…
Reference in New Issue