List of usage examples for org.objectweb.asm Opcodes ASTORE
int ASTORE
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From source file:org.springsource.loaded.test.infra.MethodPrinter.java
License:Apache License
public void visitVarInsn(int opcode, int var) { if (opcode == Opcodes.ALOAD) { to.println(" ALOAD " + var); } else if (opcode == Opcodes.ASTORE) { to.println(" ASTORE " + var); } else if (opcode == Opcodes.ILOAD) { to.println(" ILOAD " + var); } else if (opcode == FLOAD) { to.println(" FLOAD " + var); } else if (opcode == LLOAD) { to.println(" LLOAD " + var); } else if (opcode == DLOAD) { to.println(" DLOAD " + var); } else if (opcode == ISTORE) { to.println(" ISTORE " + var); } else if (opcode == LSTORE) { to.println(" LSTORE " + var); } else {//w ww .j a va2s.co m throw new IllegalStateException(":" + opcode); } }
From source file:org.testeoa.estatica.AdapterDUG.java
License:Open Source License
@Override public void visitVarInsn(int opcode, int var) { String ins = getInstrucao(opcode) + " " + var; addInstrucao(ins);/*from www . java2 s. c o m*/ // Anlise do Fluxo de Dados if (opcode >= Opcodes.ILOAD && opcode <= Opcodes.ALOAD) { addUso(var); } if (opcode >= Opcodes.ISTORE && opcode <= Opcodes.ASTORE) { addDef(var); } super.visitVarInsn(opcode, var); }
From source file:org.zoeey.ztpl.compiler.ByteCodeHelper.java
License:LGPL
/** * ??<br />/*from w ww .ja v a2 s . c o m*/ * @param obj ?? * @return ?? */ public int newVar(Object obj) { int pos = tracker.next(); visitObject(obj); mv.visitVarInsn(Opcodes.ASTORE, pos); return pos; }
From source file:org.zoeey.ztpl.compiler.ByteCodeHelper.java
License:LGPL
/** * ?<br />/*from w w w. ja v a 2 s . c om*/ * ? var paramsMap_* = new ParamsMap();<br /> * ex. {echo varA="a" varB="b"} <br /> * ?? map{"varA":"a","varB":"b"} * */ public int newMap() { int pos = tracker.next(); mv.visitTypeInsn(Opcodes.NEW, "org/zoeey/ztpl/ParamsMap"); mv.visitInsn(Opcodes.DUP); mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "org/zoeey/ztpl/ParamsMap", "<init>", "()V"); mv.visitVarInsn(Opcodes.ASTORE, pos); return pos; }
From source file:org.zoeey.ztpl.compiler.ByteCodeHelper.java
License:LGPL
/** * ???ParamsMap/* w w w .jav a 2 s . c o m*/ * ?paramsMap.get(key); * @param mapPos ParamsMap? * @param key * @param valuePos ?? * @return pos ? */ public int getFromMap(int mapPos, String key) { int pos = tracker.next(); mv.visitVarInsn(Opcodes.ALOAD, mapPos); mv.visitLdcInsn(key); mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/Map", "get", "(Ljava/lang/Object;)Ljava/lang/Object;"); mv.visitVarInsn(Opcodes.ASTORE, pos); return pos; }
From source file:pku.sei.checkedcoverage.slicing.Slicer.java
License:Creative Commons License
/** * select the last location that was not checked, and create new slice criterion for it. * remove the relative lines from unchecked lines, until all location are sliced. * @return the new created slice location for every class. *///from www . j a v a 2s .c o m public static HashMap<String, TreeSet<Long>> sliceForUnchecked() { System.out.println("Trying to add checks"); HashMap<String, TreeSet<Long>> sliceCreated = new HashMap<String, TreeSet<Long>>(); HashMap<String, HashSet<Instruction>> uncheckedMap = getUncheckedMap(); Iterator<String> it = uncheckedMap.keySet().iterator(); List<String> cris = new ArrayList<String>(); int crisNr = 0; while (it.hasNext()) { String key = it.next(); sliceCreated.put(key, new TreeSet<Long>()); HashSet<Instruction> insts = uncheckedMap.get(key); TreeSet<Integer> unchecked = new TreeSet<Integer>(); HashMap<Integer, String> critInfoMap = new HashMap<Integer, String>(); HashMap<Integer, HashSet<String>> varsMap = new HashMap<Integer, HashSet<String>>(); for (Instruction inst : insts) { if (inst.getType().equals(InstructionType.FIELD) || inst.getType().equals(InstructionType.VAR)) { unchecked.add(inst.getLineNumber()); if (!critInfoMap.containsKey(inst.getLineNumber())) { critInfoMap.put(inst.getLineNumber(), inst.getMethod().getReadClass().getName() + "." + inst.getMethod().getName()); } if (!varsMap.containsKey(inst.getLineNumber())) { varsMap.put(inst.getLineNumber(), new HashSet<String>()); } if (inst.getType().equals(InstructionType.FIELD)) { FieldInstruction fieldinst = (FieldInstruction) inst; varsMap.get(inst.getLineNumber()).add(fieldinst.getFieldName()); } else if (inst.getType().equals(InstructionType.VAR)) { VarInstruction varinst = (VarInstruction) inst; if (varinst.getOpcode() == Opcodes.DSTORE || varinst.getOpcode() == Opcodes.ASTORE || varinst.getOpcode() == Opcodes.LSTORE || varinst.getOpcode() == Opcodes.ISTORE || varinst.getOpcode() == Opcodes.FSTORE || varinst.getOpcode() == Opcodes.RET) { String varname = inst.getMethod().getLocalVariables()[varinst.getLocalVarIndex()] .getName(); varsMap.get(inst.getLineNumber()).add(varname); } } } } while (!unchecked.isEmpty()) { int last = unchecked.last(); String cri = critInfoMap.get(last) + ":" + last + ":*"; cris.add(cri); System.out.println(++crisNr + " new check(s) added!" + cri); unchecked.removeAll(sliceUnchecked(cri)); sliceCreated.get(key).add((long) last); unchecked.remove(last); } } System.out.println("Done!"); return sliceCreated; }
From source file:pku.sei.checkedcoverage.slicing.Slicer.java
License:Creative Commons License
public void process(ThreadId threadId, final List<SlicingCriterion> sc, boolean multithreaded) throws InterruptedException { DependencesExtractor<SlicerInstance> depExtractor = DependencesExtractor.forTrace(this.trace, SlicerInstanceFactory.instance); for (ProgressMonitor mon : this.progressMonitors) depExtractor.addProgressMonitor(mon); VisitorCapability[] capabilities = { VisitorCapability.CONTROL_DEPENDENCES, VisitorCapability.DATA_DEPENDENCES_READ_AFTER_WRITE, VisitorCapability.INSTRUCTION_EXECUTIONS, VisitorCapability.METHOD_ENTRY_LEAVE, VisitorCapability.CONTROL_DEPENDENCES }; if (this.untracedCallVisitors.size() > 0) capabilities[capabilities.length - 1] = VisitorCapability.UNTRACED_METHOD_CALLS; final List<SliceVisitor> sliceVisitors0 = Slicer.this.sliceVisitors; final List<UntracedCallVisitor> untracedCallVisitors0 = Slicer.this.untracedCallVisitors; depExtractor.registerVisitor(new DependencesVisitorAdapter<SlicerInstance>() { private final List<SlicingCriterionInstance> slicingCritInst = instantiateSlicingCriteria(sc); @SuppressWarnings("unchecked") private IntegerMap<Object>[] interestingLocalVariables = (IntegerMap<Object>[]) new IntegerMap<?>[0]; private long[] critOccurenceNumbers = new long[2]; // 0 if not in a criterion private final SliceVisitor[] sliceVisitorsArray = sliceVisitors0 .toArray(new SliceVisitor[sliceVisitors0.size()]); private final UntracedCallVisitor[] untracedCallsVisitorsArray = untracedCallVisitors0 .toArray(new UntracedCallVisitor[untracedCallVisitors0.size()]); private ReadMethod enteredMethod; private List<SlicingCriterionInstance> instantiateSlicingCriteria(List<SlicingCriterion> criteria) { if (criteria.isEmpty()) return Collections.emptyList(); else if (criteria.size() == 1) return Collections.singletonList(criteria.get(0).getInstance()); else { List<SlicingCriterionInstance> instances = new ArrayList<SlicingCriterionInstance>( criteria.size()); for (SlicingCriterion crit : criteria) instances.add(crit.getInstance()); return instances; }//from www.j a v a 2s . c o m } @Override public void visitInstructionExecution(SlicerInstance instance) { int stackDepth = instance.getStackDepth(); if (this.critOccurenceNumbers.length <= stackDepth) { long[] newCritOccurenceNumbers = new long[2 * Math.max(this.critOccurenceNumbers.length, stackDepth)]; System.arraycopy(this.critOccurenceNumbers, 0, newCritOccurenceNumbers, 0, this.critOccurenceNumbers.length); this.critOccurenceNumbers = newCritOccurenceNumbers; } Instruction instruction = instance.getInstruction(); for (SlicingCriterionInstance crit : this.slicingCritInst) { if (crit.matches(instance)) { this.critOccurenceNumbers[stackDepth] = crit.getOccurenceNumber(); assert (this.critOccurenceNumbers[stackDepth] > 0); // for each criterion, there are three cases: // - track all data read in this line // - track a given set of local variables // - track the control dependences of this instruction // only in the last case, the instructions from that line are added to the dynamic slice if (crit.matchAllData()) { instance.allDataInteresting = true; instance.onlyIfAfterCriterion = true; instance.onDynamicSlice = true; // it's not really on the dynamic slice, but we have to set this instance.criterionDistance = 0; } else { if (crit.hasLocalVariables()) { if (this.interestingLocalVariables.length <= stackDepth) { @SuppressWarnings("unchecked") IntegerMap<Object>[] newInterestingLocalVariables = (IntegerMap<Object>[]) new IntegerMap<?>[Math .max(stackDepth + 1, this.interestingLocalVariables.length * 3 / 2)]; System.arraycopy(this.interestingLocalVariables, 0, newInterestingLocalVariables, 0, this.interestingLocalVariables.length); this.interestingLocalVariables = newInterestingLocalVariables; } List<LocalVariable> localVariables = crit.getLocalVariables(); if (this.interestingLocalVariables[stackDepth] == null) this.interestingLocalVariables[stackDepth] = new IntegerMap<Object>( localVariables.size() * 4 / 3 + 1); for (LocalVariable i : localVariables) this.interestingLocalVariables[stackDepth].put(i.getIndex(), null); } else { Instruction insn = instruction; if (insn.getType() != InstructionType.LABEL) for (SliceVisitor vis : this.sliceVisitorsArray) vis.visitMatchedInstance(instance); instance.onDynamicSlice = true; instance.criterionDistance = 0; } } } else if (this.critOccurenceNumbers[stackDepth] != 0) { this.critOccurenceNumbers[stackDepth] = 0; } } if (this.interestingLocalVariables.length > stackDepth && this.interestingLocalVariables[stackDepth] != null) { switch (instruction.getOpcode()) { case Opcodes.ISTORE: case Opcodes.ASTORE: case Opcodes.LSTORE: case Opcodes.FSTORE: case Opcodes.DSTORE: VarInstruction varInsn = (VarInstruction) instruction; if (this.interestingLocalVariables[stackDepth].containsKey(varInsn.getLocalVarIndex())) { this.interestingLocalVariables[stackDepth].remove(varInsn.getLocalVarIndex()); if (this.interestingLocalVariables[stackDepth].isEmpty()) this.interestingLocalVariables[stackDepth] = null; for (SliceVisitor vis : this.sliceVisitorsArray) vis.visitMatchedInstance(instance); instance.onDynamicSlice = true; // and we want to know where the data comes from... instance.allDataInteresting = true; instance.criterionDistance = 0; } break; case Opcodes.INVOKEINTERFACE: case Opcodes.INVOKESPECIAL: case Opcodes.INVOKESTATIC: case Opcodes.INVOKEVIRTUAL: if (this.enteredMethod != null) { MethodInvocationInstruction mtdInvInsn = (MethodInvocationInstruction) instruction; int paramCount = instruction.getOpcode() == INVOKESTATIC ? 0 : 1; for (int param = mtdInvInsn.getParameterCount() - 1; param >= 0; --param) paramCount += mtdInvInsn.parameterIsLong(param) ? 2 : 1; boolean enteredMethodMatches = this.enteredMethod.getName() .equals(mtdInvInsn.getInvokedMethodName()) && this.enteredMethod.getDesc().equals(mtdInvInsn.getInvokedMethodDesc()); if (enteredMethodMatches) { boolean localVarsMatched = false; for (int varNr = 0; varNr < paramCount; ++varNr) { if (this.interestingLocalVariables[stackDepth].containsKey(varNr)) { this.interestingLocalVariables[stackDepth].remove(varNr); if (this.interestingLocalVariables[stackDepth].isEmpty()) this.interestingLocalVariables[stackDepth] = null; localVarsMatched = true; instance.onDynamicSlice = true; // and we want to know where the data comes from... // TODO instance.allDataInteresting = true; instance.criterionDistance = 0; } } if (localVarsMatched) for (SliceVisitor vis : this.sliceVisitorsArray) vis.visitMatchedInstance(instance); } } } } this.enteredMethod = null; } @Override public void visitControlDependence(SlicerInstance from, SlicerInstance to) { if (from.onDynamicSlice) { Instruction insn = to.getInstruction(); if (insn.getType() == InstructionType.LABEL || insn.getOpcode() == Opcodes.GOTO) { if (to.predecessors == null) to.predecessors = Collections.singleton(from); else { if (to.predecessors.size() == 1) to.predecessors = new HashSet<SlicerInstance>(to.predecessors); to.predecessors.add(from); } if (from.criterionDistance < to.criterionDistance) to.criterionDistance = from.criterionDistance; } else if (from.predecessors != null) { assert (!from.predecessors.isEmpty()); for (SlicerInstance pred : from.predecessors) { int distance = pred.criterionDistance + 1; delegateControlSliceDependence(pred, to, distance); if (distance < to.criterionDistance) to.criterionDistance = distance; } } else { int distance = from.criterionDistance + 1; delegateControlSliceDependence(from, to, distance); if (distance < to.criterionDistance) to.criterionDistance = distance; } to.onDynamicSlice = true; } } private void delegateControlSliceDependence(SlicerInstance from, SlicerInstance to, int distance) { for (SliceVisitor vis : this.sliceVisitorsArray) vis.visitSliceDependence(from, to, null, distance); // since "to" controls the execution of "from", we want to track all data dependences of "to" // to find out why it took this decision // exception: method invocations; here we only want to track why the method was executed, // but not the data that it consumed // important to check that "from" comes from inside the method which is called by "from" boolean calledMethodDependence = false; if (to.getInstruction().getType() == InstructionType.METHODINVOCATION) { MethodInvocationInstruction mtdInv = (MethodInvocationInstruction) to.getInstruction(); ReadMethod calledMethod = from.getInstruction().getMethod(); if (mtdInv.getInvokedMethodName().equals(calledMethod.getName()) && mtdInv.getInvokedMethodDesc().equals(calledMethod.getDesc())) { calledMethodDependence = true; } } if (!calledMethodDependence) { to.allDataInteresting = true; } } @Override public void visitDataDependence(SlicerInstance from, SlicerInstance to, Collection<? extends Variable> fromVars, Variable toVar, DataDependenceType type) throws InterruptedException { assert type == DataDependenceType.READ_AFTER_WRITE; if (from.onDynamicSlice && // from must definitively be on the dynamic slice ((from.allDataInteresting && (!from.onlyIfAfterCriterion || this.critOccurenceNumbers[to.getStackDepth()] == 0)) || // and either we want to track all data dependencies (from.interestingVariable != null && ( // or (if the interestingVariable is set) ... from.interestingVariable.equals(toVar) || // the interestingVariable must be the one we are just visiting (from.moreInterestingVariables != null && from.moreInterestingVariables.contains(toVar)))))) { // or it must be in the set of more variables Instruction insn = to.getInstruction(); assert insn.getType() != InstructionType.LABEL; if (from.onlyIfAfterCriterion) { to.criterionDistance = 0; for (SliceVisitor vis : this.sliceVisitorsArray) vis.visitMatchedInstance(to); } else { int distance = from.criterionDistance + 1; if (distance < to.criterionDistance) to.criterionDistance = distance; for (SliceVisitor vis : this.sliceVisitorsArray) vis.visitSliceDependence(from, to, toVar, distance); } if (!fromVars.isEmpty()) { Iterator<? extends Variable> varIt = fromVars.iterator(); assert varIt .hasNext() : "Iterator of a non-empty collection should have at least one element"; Variable first = varIt.next(); if (to.interestingVariable == null || to.interestingVariable.equals(first)) { to.interestingVariable = first; first = varIt.hasNext() ? varIt.next() : null; } if (first != null) { if (to.moreInterestingVariables == null) to.moreInterestingVariables = new HashSet<Variable>(8); to.moreInterestingVariables.add(first); while (varIt.hasNext()) to.moreInterestingVariables.add(varIt.next()); } } to.onDynamicSlice = true; } } @Override public void visitMethodLeave(ReadMethod method, int stackDepth) throws InterruptedException { if (this.interestingLocalVariables.length > stackDepth && this.interestingLocalVariables[stackDepth] != null) { this.interestingLocalVariables[stackDepth] = null; } } @Override public void visitMethodEntry(ReadMethod method, int stackDepth) throws InterruptedException { if (this.interestingLocalVariables.length > stackDepth && this.interestingLocalVariables[stackDepth] != null) { this.enteredMethod = method; this.interestingLocalVariables[stackDepth] = null; } } @Override public void visitUntracedMethodCall(SlicerInstance instrInstance) throws InterruptedException { for (UntracedCallVisitor vis : this.untracedCallsVisitorsArray) vis.visitUntracedMethodCall(instrInstance); } }, capabilities); depExtractor.processBackwardTrace(threadId, multithreaded); }
From source file:pl.clareo.coroutines.core.ClassTransformer.java
License:Apache License
@SuppressWarnings("unchecked") void transform() { for (MethodNode coroutine : coroutines) { if (log.isLoggable(Level.FINEST)) { log.finest("Generating method for coroutine " + coroutine.name + coroutine.desc); }/*w w w .j av a 2 s . c o m*/ String coroutineName = getCoroutineName(coroutine); MethodTransformer methodTransformer = new MethodTransformer(coroutine, thisType); MethodNode coroutineImpl = methodTransformer.transform(coroutineName, generateDebugCode); thisNode.methods.add(coroutineImpl); /* * generate co iterators and method stubs */ log.finest("Generating CoIterator implementation and method stubs"); String baseCoIteratorName; Map<String, Object> annotation = getCoroutineAnnotationValues(coroutine); if (getBoolean(annotation, "threadLocal")) { baseCoIteratorName = Type.getInternalName(ThreadLocalCoIterator.class); } else { baseCoIteratorName = Type.getInternalName(SingleThreadedCoIterator.class); } String coIteratorClassName = "pl/clareo/coroutines/core/CoIterator" + num; ClassNode coIteratorClass = new ClassNode(); coIteratorClass.version = Opcodes.V1_6; coIteratorClass.access = Opcodes.ACC_PUBLIC | Opcodes.ACC_FINAL | Opcodes.ACC_SUPER; coIteratorClass.name = coIteratorClassName; coIteratorClass.superName = baseCoIteratorName; if (generateDebugCode) { /* * If debugging code is emitted create field keeping JDK logger */ FieldNode loggerField = new FieldNode(Opcodes.ACC_PRIVATE | Opcodes.ACC_FINAL | Opcodes.ACC_STATIC, "logger", "Ljava/util/logging/Logger;", null, null); coIteratorClass.fields.add(loggerField); MethodNode clinit = new MethodNode(); clinit.access = Opcodes.ACC_STATIC; clinit.name = "<clinit>"; clinit.desc = "()V"; clinit.exceptions = Collections.EMPTY_LIST; String loggerName = thisType.getClassName(); InsnList clinitCode = clinit.instructions; clinitCode.add(new LdcInsnNode(loggerName)); clinitCode.add(new MethodInsnNode(Opcodes.INVOKESTATIC, "java/util/logging/Logger", "getLogger", "(Ljava/lang/String;)Ljava/util/logging/Logger;")); clinitCode.add(new FieldInsnNode(Opcodes.PUTSTATIC, coIteratorClassName, "logger", "Ljava/util/logging/Logger;")); clinitCode.add(new InsnNode(Opcodes.RETURN)); clinit.maxStack = 1; clinit.maxLocals = 0; coIteratorClass.methods.add(clinit); } /* * Generate constructor */ MethodNode init = new MethodNode(); init.access = Opcodes.ACC_PUBLIC; init.name = "<init>"; init.desc = CO_ITERATOR_CONSTRUCTOR_DESCRIPTOR; init.exceptions = Collections.EMPTY_LIST; InsnList initCode = init.instructions; initCode.add(new VarInsnNode(Opcodes.ALOAD, 0)); initCode.add(new VarInsnNode(Opcodes.ALOAD, 1)); initCode.add(new MethodInsnNode(Opcodes.INVOKESPECIAL, baseCoIteratorName, "<init>", CO_ITERATOR_CONSTRUCTOR_DESCRIPTOR)); initCode.add(new InsnNode(Opcodes.RETURN)); init.maxStack = 2; init.maxLocals = 2; coIteratorClass.methods.add(init); /* * Generate overriden call to coroutine */ MethodNode call = new MethodNode(); call.access = Opcodes.ACC_PROTECTED; call.name = "call"; call.desc = CALL_METHOD_DESCRIPTOR; call.exceptions = Collections.EMPTY_LIST; InsnList callCode = call.instructions; /* * if debug needed generate call details */ if (generateDebugCode) { String coroutineId = "Coroutine " + coroutine.name; callCode.add(loggingInstructions(coIteratorClassName, "logger", Level.FINER, coroutineId + " call. Caller sent: ", 2)); callCode.add(new FrameNode(Opcodes.F_SAME, 0, EMPTY_LOCALS, 0, EMPTY_STACK)); callCode.add(loggingInstructions(coIteratorClassName, "logger", Level.FINEST, coroutineId + " state ", 1)); callCode.add(new FrameNode(Opcodes.F_SAME, 0, EMPTY_LOCALS, 0, EMPTY_STACK)); } /* * push call arguments: this (if not static), frame, input, output */ boolean isStatic = (coroutine.access & Opcodes.ACC_STATIC) != 0; if (!isStatic) { callCode.add(new VarInsnNode(Opcodes.ALOAD, 1)); callCode.add( new MethodInsnNode(Opcodes.INVOKEVIRTUAL, FRAME_NAME, "getThis", "()Ljava/lang/Object;")); callCode.add(new TypeInsnNode(Opcodes.CHECKCAST, thisType.getInternalName())); } callCode.add(new VarInsnNode(Opcodes.ALOAD, 1)); callCode.add(new InsnNode(Opcodes.ACONST_NULL)); callCode.add(new VarInsnNode(Opcodes.ALOAD, 2)); callCode.add(new MethodInsnNode(isStatic ? Opcodes.INVOKESTATIC : Opcodes.INVOKEVIRTUAL, thisType.getInternalName(), coroutineName, COROUTINE_METHOD_DESCRIPTOR)); // stack: * if (!generateDebugCode) { callCode.add(new InsnNode(Opcodes.ARETURN)); } else { // save result display suspension point (two more locals // needed) callCode.add(new VarInsnNode(Opcodes.ASTORE, 3)); callCode.add(new VarInsnNode(Opcodes.ALOAD, 1)); callCode.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL, FRAME_NAME, "getLineOfCode", "()I")); callCode.add(box_int(Type.INT)); callCode.add(new VarInsnNode(Opcodes.ASTORE, 4)); callCode.add(loggingInstructions(coIteratorClassName, "logger", Level.FINER, "Coroutine suspended at line ", 4, ". Yielded:", 3)); callCode.add(new FrameNode(Opcodes.F_APPEND, 2, new Object[] { "java/lang/Object", "java/lang/Integer" }, 0, EMPTY_STACK)); callCode.add(new VarInsnNode(Opcodes.ALOAD, 3)); callCode.add(new InsnNode(Opcodes.ARETURN)); } coIteratorClass.methods.add(call); // if debugging code is emitted it needs space for two // additional locals and 5 stack operand if (generateDebugCode) { call.maxStack = 5; call.maxLocals = 5; } else { if (isStatic) { call.maxStack = 3; } else { call.maxStack = 4; } call.maxLocals = 3; } /* * CoIterator created - define it in the runtime and verify if * needed */ if (log.isLoggable(Level.FINEST)) { log.finest("Generated class " + coIteratorClassName); } ClassWriter cw = new ClassWriter(0); coIteratorClass.accept(cw); byte[] classBytes = cw.toByteArray(); try { CoroutineInstrumentator.dumpClass(coIteratorClassName, classBytes); } catch (IOException e) { throw new CoroutineGenerationException("Unable to write class " + coIteratorClassName, e); } /* * start generating method - new method is named as the method in * user code, it: returns instance of appropriate CoIterator (see * above), saves arguments of call */ if (log.isLoggable(Level.FINEST)) { log.finest("Instrumenting method " + coroutine.name); } InsnList code = coroutine.instructions; code.clear(); /* * create new Frame */ boolean isDebugFramePossible = generateDebugCode && coroutine.localVariables != null; if (isDebugFramePossible) { code.add(createDebugFrame(coroutine)); } else { code.add(createFrame(coroutine)); } /* * save frame in the first, and locals array in the second local * variable */ int argsSize = Type.getArgumentsAndReturnSizes(coroutine.desc) >> 2; if (isStatic) { argsSize -= 1; } code.add(new VarInsnNode(Opcodes.ASTORE, argsSize)); code.add(new VarInsnNode(Opcodes.ALOAD, argsSize)); code.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL, FRAME_NAME, "getLocals", "()[Ljava/lang/Object;")); int localsArrayIndex = argsSize + 1; code.add(new VarInsnNode(Opcodes.ASTORE, localsArrayIndex)); /* * save all call arguments (along with this if this method is not * static) into locals array */ Type[] argsTypes = Type.getArgumentTypes(coroutine.desc); if (!isStatic) { code.add(saveloc(localsArrayIndex, 0, 0, JAVA_LANG_OBJECT)); code.add(savelocs(localsArrayIndex, 1, 1, argsTypes)); } else { code.add(savelocs(localsArrayIndex, 0, 0, argsTypes)); } /* * create CoIterator instance with saved frame, make initial call to * next if needed and return to caller */ code.add(new TypeInsnNode(Opcodes.NEW, coIteratorClassName)); code.add(new InsnNode(Opcodes.DUP)); code.add(new VarInsnNode(Opcodes.ALOAD, argsSize)); code.add(new MethodInsnNode(Opcodes.INVOKESPECIAL, coIteratorClassName, "<init>", CO_ITERATOR_CONSTRUCTOR_DESCRIPTOR)); if (!getBoolean(annotation, "generator", true)) { code.add(new InsnNode(Opcodes.DUP)); code.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL, coIteratorClassName, "next", "()Ljava/lang/Object;")); code.add(new InsnNode(Opcodes.POP)); } code.add(new InsnNode(Opcodes.ARETURN)); /* * end method generation; maxs can be statically determined 3 * operands on stack (call to frame setLocals and CoIterator * constructor) + 1 if any argument is long or double (debug frame * needs 7 operands for variable names creation); locals = argsSize * + 1 reference to frame + 1 array of locals */ if (isDebugFramePossible) { coroutine.maxStack = 7; } else { boolean isCategory2ArgumentPresent = false; for (Type argType : argsTypes) { int sort = argType.getSort(); if (sort == Type.LONG || sort == Type.DOUBLE) { isCategory2ArgumentPresent = true; break; } } coroutine.maxStack = isCategory2ArgumentPresent ? 4 : 3; } coroutine.maxLocals = localsArrayIndex + 1; coroutine.localVariables.clear(); coroutine.tryCatchBlocks.clear(); num++; } }
From source file:portablejim.veinminer.asm.ItemInWorldManagerTransformer.java
License:Open Source License
private InsnList buildBlockIdFunctionCall(String obfuscatedClassName, String worldType, int blockVarIndex) { InsnList blockIdFunctionCall = new InsnList(); blockIdFunctionCall.add(new TypeInsnNode(Opcodes.NEW, blockIdClassName)); blockIdFunctionCall.add(new InsnNode(Opcodes.DUP)); blockIdFunctionCall.add(new VarInsnNode(Opcodes.ALOAD, 0)); blockIdFunctionCall.add(new FieldInsnNode(Opcodes.GETFIELD, obfuscatedClassName.replace(".", "/"), getCorrectName("theWorld"), typemap.get(getCorrectName("theWorld")))); blockIdFunctionCall.add(new VarInsnNode(Opcodes.ILOAD, 1)); blockIdFunctionCall.add(new VarInsnNode(Opcodes.ILOAD, 2)); blockIdFunctionCall.add(new VarInsnNode(Opcodes.ILOAD, 3)); blockIdFunctionCall.add(new MethodInsnNode(Opcodes.INVOKESPECIAL, blockIdClassName, "<init>", String.format("(%sIII)V", worldType))); blockIdFunctionCall.add(new VarInsnNode(Opcodes.ASTORE, blockVarIndex)); return blockIdFunctionCall; }
From source file:pt.minha.kernel.instrument.SyncToMonitorClassVisitor.java
License:Open Source License
public void makeStub(int access, String name, String desc, String signature, String[] exceptions) { Method m = new Method(name, desc); MethodVisitor mv = super.visitMethod(access, name, desc, signature, exceptions); mv.visitCode();// w w w.ja v a 2s . com Label begin = new Label(); Label pre_invoke = new Label(); Label pos_leave = new Label(); Label in_catch = new Label(); Label pre_rethrow = new Label(); Label end = new Label(); mv.visitTryCatchBlock(pre_invoke, pos_leave, in_catch, null); mv.visitTryCatchBlock(in_catch, pre_rethrow, in_catch, null); mv.visitLabel(begin); int offset; if ((access & Opcodes.ACC_STATIC) == 0) { mv.visitVarInsn(Opcodes.ALOAD, 0); offset = 1; } else { mv.visitFieldInsn(Opcodes.GETSTATIC, clz, "_fake_class", "L" + ClassConfig.fake_prefix + "java/lang/Object;"); offset = 0; } int length = 0; for (Type t : m.getArgumentTypes()) length += t.getSize(); mv.visitInsn(Opcodes.DUP); mv.visitVarInsn(Opcodes.ASTORE, offset + length); mv.visitInsn(Opcodes.MONITORENTER); mv.visitLabel(pre_invoke); if ((access & Opcodes.ACC_STATIC) == 0) mv.visitVarInsn(Opcodes.ALOAD, 0); int i = offset; for (Type t : m.getArgumentTypes()) { // t.getOpcode() should work for long and double too... :-( if (t.getClassName().equals("long")) mv.visitVarInsn(Opcodes.LLOAD, i); else if (t.getClassName().equals("double")) mv.visitVarInsn(Opcodes.DLOAD, i); else mv.visitVarInsn(t.getOpcode(Opcodes.ILOAD), i); i += t.getSize(); } boolean itf = (access & Opcodes.ACC_INTERFACE) != 0; if ((access & Opcodes.ACC_STATIC) == 0) mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, clz, "_" + name, desc, itf); else mv.visitMethodInsn(Opcodes.INVOKESTATIC, clz, "_" + name, desc, itf); mv.visitVarInsn(Opcodes.ALOAD, offset + length); mv.visitInsn(Opcodes.MONITOREXIT); mv.visitLabel(pos_leave); if (m.getReturnType().equals(Type.VOID_TYPE)) mv.visitInsn(Opcodes.RETURN); else mv.visitInsn(m.getReturnType().getOpcode(Opcodes.IRETURN)); mv.visitLabel(in_catch); mv.visitVarInsn(Opcodes.ALOAD, offset + length); mv.visitInsn(Opcodes.MONITOREXIT); mv.visitLabel(pre_rethrow); mv.visitInsn(Opcodes.ATHROW); mv.visitLabel(end); i = 0; if ((access & Opcodes.ACC_STATIC) == 0) mv.visitLocalVariable("this", "L" + clz + ";", null, begin, end, i++); for (Type t : m.getArgumentTypes()) mv.visitLocalVariable("arg" + i, t.getDescriptor(), null, begin, end, i++); mv.visitMaxs(0, 0); mv.visitEnd(); }