List of usage examples for org.objectweb.asm Opcodes F_NEW
int F_NEW
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From source file:org.batoo.jpa.core.impl.instance.Enhancer.java
License:Open Source License
private static void createMethodCheck(final String enhancedClassName, final String descEnhancer, final ClassWriter cw) { final MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PRIVATE, Enhancer.METHOD_ENHANCED_CHECK, Enhancer.makeDescription(Void.TYPE), null, null); mv.visitCode();/*from w w w . ja v a 2s. c o m*/ final Label lCheckInternal = new Label(); final Label lCheckInitialized = new Label(); final Label lReturn = new Label(); final Label lFind = new Label(); final Label lInitialized = new Label(); final Label lChanged = new Label(); final Label lOut = new Label(); // if (!this.__enhanced__$$__internal) { return } mv.visitLabel(lCheckInternal); mv.visitFrame(Opcodes.F_NEW, 1, new Object[] { enhancedClassName }, 0, new Object[] {}); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_INTERNAL, Enhancer.DESCRIPTOR_BOOLEAN); mv.visitJumpInsn(Opcodes.IFEQ, lCheckInitialized); mv.visitInsn(Opcodes.RETURN); // if (!this.__enhanced__$$__initialized) { mv.visitLabel(lCheckInitialized); mv.visitFrame(Opcodes.F_NEW, 1, new Object[] { enhancedClassName }, 0, new Object[] {}); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_INITIALIZED, Enhancer.DESCRIPTOR_BOOLEAN); mv.visitJumpInsn(Opcodes.IFNE, lChanged); // if (this.__enhanced_$$__session == null) mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_SESSION, Enhancer.DESCRIPTOR_SESSION); mv.visitJumpInsn(Opcodes.IFNONNULL, lFind); // throw new PersistenceException("No session to initialize the instance"); mv.visitTypeInsn(Opcodes.NEW, Enhancer.INTERNAL_PERSISTENCE_EXCEPTION); mv.visitInsn(Opcodes.DUP); mv.visitLdcInsn("No session to initialize the instance"); mv.visitMethodInsn(Opcodes.INVOKESPECIAL, Enhancer.INTERNAL_PERSISTENCE_EXCEPTION, Enhancer.CONSTRUCTOR_INIT, Enhancer.makeDescription(Void.TYPE, String.class)); mv.visitInsn(Opcodes.ATHROW); // this.__enhanced_$$__session.getEntityManager().find(this.__enhanced_$$__type, this.__enhanced__$$__id); mv.visitLabel(lFind); mv.visitFrame(Opcodes.F_NEW, 1, new Object[] { enhancedClassName }, 0, new Object[] {}); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_SESSION, Enhancer.DESCRIPTOR_SESSION); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Enhancer.INTERNAL_SESSION, Enhancer.METHOD_GET_ENTITY_MANAGER, Enhancer.makeDescription(EntityManagerImpl.class)); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_TYPE, Enhancer.DESCRIPTOR_CLASS); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_ID, Enhancer.DESCRIPTOR_OBJECT); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Enhancer.INTERNAL_ENTITY_MANAGER, Enhancer.METHOD_FIND, Enhancer.makeDescription(Object.class, Class.class, Object.class)); mv.visitInsn(Opcodes.POP); // this.__enhanced__$$__initialized = true; mv.visitLabel(lInitialized); mv.visitFrame(Opcodes.F_NEW, 1, new Object[] { enhancedClassName }, 0, new Object[] {}); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitInsn(Opcodes.ICONST_1); mv.visitFieldInsn(Opcodes.PUTFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_INITIALIZED, Enhancer.DESCRIPTOR_BOOLEAN); // if (this.__enhanced_$$__session != null) mv.visitLabel(lChanged); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_SESSION, Enhancer.DESCRIPTOR_SESSION); mv.visitJumpInsn(Opcodes.IFNULL, lReturn); // this.__enhanced__$$__managedInstance.changed(); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_MANAGED_INSTANCE, Enhancer.DESCRIPTOR_MANAGED_INSTANCE); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Enhancer.INTERNAL_MANAGED_INSTANCE, Enhancer.METHOD_CHANGED, Enhancer.makeDescription(Void.TYPE)); // return; mv.visitLabel(lReturn); mv.visitFrame(Opcodes.F_NEW, 1, new Object[] { enhancedClassName }, 0, new Object[] {}); mv.visitInsn(Opcodes.RETURN); mv.visitLabel(lOut); mv.visitLocalVariable(Enhancer.THIS, descEnhancer, null, lCheckInternal, lOut, 0); mv.visitMaxs(0, 0); mv.visitEnd(); }
From source file:org.coldswap.asm.field.PrivateStaticFieldReplacer.java
License:Open Source License
/** * Removes any initializing reference of the field. * * @param classNode containing the old class. * @param fieldNode containing the old field. * @return the initializing list of instructions. *//*from w ww.j a v a2 s.c o m*/ @SuppressWarnings("unchecked") private InsnList cleanClInit(ClassNode classNode, FieldNode fieldNode) { List<MethodNode> methodNodes = classNode.methods; AbstractInsnNode firstInst = null; int counter = 0; for (MethodNode methodNode : methodNodes) { if (methodNode.name.equals("<clinit>")) { // search for PUTSTATIC InsnList insnList = methodNode.instructions; Iterator iterator1 = insnList.iterator(); while (iterator1.hasNext()) { AbstractInsnNode ins2 = (AbstractInsnNode) iterator1.next(); // if a initializing has been found, then copy everything from // the corresponding label to the PUTSTATIC if (ins2.getOpcode() == Opcodes.PUTSTATIC) { final Boolean[] fieldFound = { false }; final FieldNode fNode = fieldNode; ins2.accept(new MethodVisitor(Opcodes.ASM5) { @Override public void visitFieldInsn(int i, String s, String s2, String s3) { if (s2.equals(fNode.name)) { fieldFound[0] = true; } super.visitFieldInsn(i, s, s2, s3); } }); if (fieldFound[0]) { // find the first PUTSTATIC before this one. boolean staticFound = false; while (!staticFound) { AbstractInsnNode tmpInst = ins2.getPrevious(); if (tmpInst != null) { if (tmpInst.getOpcode() != Opcodes.F_NEW) { if (tmpInst.getOpcode() == Opcodes.PUTSTATIC) { staticFound = true; } else { firstInst = tmpInst; counter++; } } } else { staticFound = true; } ins2 = tmpInst; } break; } } } if (firstInst != null) { InsnList iList = new InsnList(); iList.add(firstInst.clone(null)); counter--; while (counter > 0) { AbstractInsnNode ain = firstInst.getNext(); iList.add(ain.clone(null)); counter--; insnList.remove(firstInst); firstInst = ain; } // remove last instruction and the putstatic instruction AbstractInsnNode putStatic = firstInst.getNext(); insnList.remove(firstInst); insnList.remove(putStatic); return iList; } } } return null; }
From source file:org.coldswap.asm.field.ProtectedStaticFieldReplacer.java
License:Open Source License
/** * Removes any initializing reference of the field. * * @param classNode containing the old class. * @param fieldNode containing the old field. * @param canRemove <code>true</code> if this method should remove the initializing code and return it * or <code>false</code> if you only want to return the init code. * @return the initializing list of instructions. *///from w w w . j a v a2s . c om @SuppressWarnings("unchecked") private InsnList cleanClInit(ClassNode classNode, FieldNode fieldNode, boolean canRemove) { List<MethodNode> methodNodes = classNode.methods; AbstractInsnNode firstInst = null; int counter = 0; for (MethodNode methodNode : methodNodes) { if (methodNode.name.equals("<clinit>")) { // search for PUTSTATIC InsnList insnList = methodNode.instructions; Iterator iterator1 = insnList.iterator(); while (iterator1.hasNext()) { AbstractInsnNode ins2 = (AbstractInsnNode) iterator1.next(); // if a initializing has been found, then copy everything from // the coresponding label to the PUTSTATIC if (ins2.getOpcode() == Opcodes.PUTSTATIC) { final Boolean[] fieldFound = { false }; final FieldNode fNode = fieldNode; ins2.accept(new MethodVisitor(Opcodes.ASM5) { @Override public void visitFieldInsn(int i, String s, String s2, String s3) { if (s2.equals(fNode.name)) { fieldFound[0] = true; } super.visitFieldInsn(i, s, s2, s3); } }); if (fieldFound[0]) { // find the first PUTSTATIC before this one. boolean staticFound = false; while (!staticFound) { AbstractInsnNode tmpInst = ins2.getPrevious(); if (tmpInst != null) { if (tmpInst.getOpcode() != Opcodes.F_NEW) { if (tmpInst.getOpcode() == Opcodes.PUTSTATIC) { staticFound = true; } else { firstInst = tmpInst; counter++; } } } else { staticFound = true; } ins2 = tmpInst; } break; } } } if (firstInst != null) { InsnList iList = new InsnList(); iList.add(firstInst.clone(null)); counter--; while (counter > 0) { AbstractInsnNode ain = firstInst.getNext(); iList.add(ain.clone(null)); counter--; if (canRemove) { insnList.remove(firstInst); } firstInst = ain; } if (canRemove) { // remove last instruction and the putstatic instruction AbstractInsnNode putStatic = firstInst.getNext(); insnList.remove(firstInst); insnList.remove(putStatic); } return iList; } } } return null; }
From source file:org.copperengine.core.instrument.BuildStackInfoAdapter.java
License:Apache License
@Override public void visitFrame(int arg0, int arg1, Object[] arg2, int arg3, Object[] arg4) { savePreviousFrame();//ww w. ja v a 2 s .c o m if (logger.isDebugEnabled()) logger.debug("stackBefore: " + currentFrame.stack); if (logger.isDebugEnabled()) logger.debug("localBefore: " + currentFrame.localsToString()); currentFrame = new StackInfo(lastDeclaredFrame); switch (arg0) { case F_SAME: // representing frame with exactly the same locals as the previous frame and with the empty stack. currentFrame.stack.clear(); break; case F_SAME1: // representing frame with exactly the same locals as the previous frame and with single value // on the stack (nStack is 1 and stack[0] contains value for the type of the stack item). Type t = StackInfo.deferLocalDesc(arg4[0]); currentFrame.stack.clear(); currentFrame.stack.push(t); break; case F_APPEND: // representing frame with current locals are the same as the locals in the previous frame, // except that additional locals are defined (nLocal is 1, 2 or 3 and local elements contains // values representing added types). currentFrame.appendLocals(arg1, arg2); break; case F_CHOP: // Opcodes.F_CHOP representing frame with current locals are the same as the locals in the // previous frame, except that the last 1-3 locals are absent and with the empty stack (nLocals // is 1, 2 or 3). currentFrame.removeLocals(arg1); currentFrame.stack.clear(); break; case Opcodes.F_FULL: // representing complete frame data. case Opcodes.F_NEW: currentFrame.clearFrame(); currentFrame.appendLocals(arg1, arg2); currentFrame.appendStack(arg3, arg4); break; default: throw new BuildStackFrameException("Unkwnon frame type " + arg0); } lastDeclaredFrame = new StackInfo(currentFrame); if (logger.isDebugEnabled()) logger.debug("stack: " + currentFrame.stack); if (logger.isDebugEnabled()) logger.debug("local: " + currentFrame.localsToString()); if (logger.isDebugEnabled()) logger.debug("frame " + getFrameType(arg0) + " '" + arg1 + "' '" + Arrays.asList(arg2) + "' '" + arg3 + "' '" + Arrays.asList(arg4) + "'"); delegate.visitFrame(arg0, arg1, arg2, arg3, arg4); }
From source file:org.glassfish.pfl.tf.tools.enhancer.SimpleMethodTracer.java
License:Open Source License
private String getFrameType(int type) { switch (type) { case Opcodes.F_APPEND: return "APPEND"; case Opcodes.F_CHOP: return "CHOP"; case Opcodes.F_FULL: return "FULL"; case Opcodes.F_NEW: return "NEW"; case Opcodes.F_SAME: return "SAME"; case Opcodes.F_SAME1: return "SAME1"; }//from w w w. jav a2s . co m return "BAD_FRAME_TYPE"; }
From source file:org.jacoco.core.internal.flow.FrameSnapshot.java
License:Open Source License
public void accept(final MethodVisitor mv) { if (locals != null) { mv.visitFrame(Opcodes.F_NEW, locals.length, locals, stack.length, stack); } }
From source file:org.jacoco.core.internal.instr.ClassFieldProbeArrayStrategy.java
License:Open Source License
private void createInitMethod(final ClassVisitor cv, final int probeCount) { final MethodVisitor mv = cv.visitMethod(InstrSupport.INITMETHOD_ACC, InstrSupport.INITMETHOD_NAME, InstrSupport.INITMETHOD_DESC, null, null); mv.visitCode();/*w ww . j a va 2 s . co m*/ // Load the value of the static data field: mv.visitFieldInsn(Opcodes.GETSTATIC, className, InstrSupport.DATAFIELD_NAME, InstrSupport.DATAFIELD_DESC); mv.visitInsn(Opcodes.DUP); // Stack[1]: [Z // Stack[0]: [Z // Skip initialization when we already have a data array: final Label alreadyInitialized = new Label(); mv.visitJumpInsn(Opcodes.IFNONNULL, alreadyInitialized); // Stack[0]: [Z mv.visitInsn(Opcodes.POP); final int size = genInitializeDataField(mv, probeCount); // Stack[0]: [Z // Return the class' probe array: if (withFrames) { mv.visitFrame(Opcodes.F_NEW, 0, FRAME_LOCALS_EMPTY, 1, FRAME_STACK_ARRZ); } mv.visitLabel(alreadyInitialized); mv.visitInsn(Opcodes.ARETURN); mv.visitMaxs(Math.max(size, 2), 0); // Maximum local stack size is 2 mv.visitEnd(); }
From source file:org.jacoco.core.internal.instr.FrameTracker.java
License:Open Source License
public void insertFrame() { // Reduced types do not need more space than expanded types: final Object[] local = new Object[this.localSize]; final Object[] stack = new Object[this.stackSize]; final int localSize = reduce(this.local, this.localSize, local); final int stackSize = reduce(this.stack, this.stackSize, stack); mv.visitFrame(Opcodes.F_NEW, localSize, local, stackSize, stack); }
From source file:org.jacoco.core.internal.instr.FrameTracker.java
License:Open Source License
@Override public void visitFrame(final int type, final int nLocal, final Object[] local, final int nStack, final Object[] stack) { if (type != Opcodes.F_NEW) { throw new IllegalArgumentException("ClassReader.accept() should be called with EXPAND_FRAMES flag"); }//from www . j a va 2 s . co m // expanded types need at most twice the size this.local = ensureSize(this.local, nLocal * 2); this.stack = ensureSize(this.stack, nStack * 2); this.localSize = expand(local, nLocal, this.local); this.stackSize = expand(stack, nStack, this.stack); mv.visitFrame(type, nLocal, local, nStack, stack); }
From source file:org.jacoco.core.internal.instr.InterfaceFieldProbeArrayStrategy.java
License:Open Source License
private void createInitMethod(final ClassVisitor cv, final int probeCount) { final MethodVisitor mv = cv.visitMethod(InstrSupport.INITMETHOD_ACC, InstrSupport.INITMETHOD_NAME, InstrSupport.INITMETHOD_DESC, null, null); mv.visitCode();/*w ww.j a v a 2 s .c om*/ // Load the value of the static data field: mv.visitFieldInsn(Opcodes.GETSTATIC, className, InstrSupport.DATAFIELD_NAME, InstrSupport.DATAFIELD_DESC); mv.visitInsn(Opcodes.DUP); // Stack[1]: [Z // Stack[0]: [Z // Skip initialization when we already have a data array: final Label alreadyInitialized = new Label(); mv.visitJumpInsn(Opcodes.IFNONNULL, alreadyInitialized); // Stack[0]: [Z mv.visitInsn(Opcodes.POP); final int size = accessorGenerator.generateDataAccessor(classId, className, probeCount, mv); // Stack[0]: [Z // Return the class' probe array: mv.visitFrame(Opcodes.F_NEW, 0, FRAME_LOCALS_EMPTY, 1, FRAME_STACK_ARRZ); mv.visitLabel(alreadyInitialized); mv.visitInsn(Opcodes.ARETURN); mv.visitMaxs(Math.max(size, 2), 0); // Maximum local stack size is 2 mv.visitEnd(); }