List of usage examples for org.objectweb.asm Opcodes F_FULL
int F_FULL
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From source file:blockphysics.asm.BPTransformer.java
License:Open Source License
private byte[] transformBlockPhysics(byte[] bytes) { /*try// ww w. j av a 2s . c o m { FileOutputStream fos = new FileOutputStream("d:/BlockPhysics.orig.class"); fos.write(bytes); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ try { Class.forName("org.bukkit.Bukkit"); System.out.println("[BlockPhysics] Bukkit detected."); } catch (ClassNotFoundException e) { return bytes; } System.out.print("[BlockPhysics] Patching BlockPhysics.class ............"); boolean ok = false; ClassNode classNode = new ClassNode(); ClassReader classReader = new ClassReader(bytes); classReader.accept(classNode, 0); MethodNode m; Iterator<MethodNode> methods = classNode.methods.iterator(); while (methods.hasNext()) { m = methods.next(); if (m.name.equals("tickBlocksRandomMove") && m.desc.equals("(Ljr;)V")) { m.instructions.clear(); m.localVariables.clear(); InsnList toInject = new InsnList(); toInject.add(new FieldInsnNode(GETSTATIC, "blockphysics/BlockPhysics", "skipMove", "Z")); LabelNode l0 = new LabelNode(); toInject.add(new JumpInsnNode(IFEQ, l0)); toInject.add(new InsnNode(RETURN)); toInject.add(l0); toInject.add(new FrameNode(Opcodes.F_SAME, 0, null, 0, null)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "jr", "G", "Lgnu/trove/map/hash/TLongShortHashMap;")); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "gnu/trove/map/hash/TLongShortHashMap", "iterator", "()Lgnu/trove/iterator/TLongShortIterator;")); toInject.add(new VarInsnNode(ASTORE, 1)); LabelNode l1 = new LabelNode(); toInject.add(l1); toInject.add(new FrameNode(Opcodes.F_APPEND, 1, new Object[] { "gnu/trove/iterator/TLongShortIterator" }, 0, null)); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add(new MethodInsnNode(INVOKEINTERFACE, "gnu/trove/iterator/TLongShortIterator", "hasNext", "()Z")); LabelNode l2 = new LabelNode(); toInject.add(new JumpInsnNode(IFEQ, l2)); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add(new MethodInsnNode(INVOKEINTERFACE, "gnu/trove/iterator/TLongShortIterator", "advance", "()V")); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add( new MethodInsnNode(INVOKEINTERFACE, "gnu/trove/iterator/TLongShortIterator", "key", "()J")); toInject.add(new VarInsnNode(LSTORE, 2)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new InsnNode(POP)); toInject.add(new VarInsnNode(LLOAD, 2)); toInject.add(new MethodInsnNode(INVOKESTATIC, "abv", "keyToX", "(J)I")); toInject.add(new VarInsnNode(ISTORE, 4)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new InsnNode(POP)); toInject.add(new VarInsnNode(LLOAD, 2)); toInject.add(new MethodInsnNode(INVOKESTATIC, "abv", "keyToZ", "(J)I")); toInject.add(new VarInsnNode(ISTORE, 5)); toInject.add(new VarInsnNode(ILOAD, 4)); toInject.add(new IntInsnNode(BIPUSH, 16)); toInject.add(new InsnNode(IMUL)); toInject.add(new VarInsnNode(ISTORE, 6)); toInject.add(new VarInsnNode(ILOAD, 5)); toInject.add(new IntInsnNode(BIPUSH, 16)); toInject.add(new InsnNode(IMUL)); toInject.add(new VarInsnNode(ISTORE, 7)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new VarInsnNode(ILOAD, 4)); toInject.add(new VarInsnNode(ILOAD, 5)); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "jr", "e", "(II)Ladq;")); toInject.add(new VarInsnNode(ASTORE, 8)); toInject.add(new VarInsnNode(ALOAD, 8)); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "adq", "i", "()[Ladr;")); toInject.add(new VarInsnNode(ASTORE, 12)); toInject.add(new VarInsnNode(ALOAD, 12)); toInject.add(new InsnNode(ARRAYLENGTH)); toInject.add(new VarInsnNode(ISTORE, 9)); toInject.add(new InsnNode(ICONST_0)); toInject.add(new VarInsnNode(ISTORE, 10)); LabelNode l3 = new LabelNode(); toInject.add(l3); toInject.add(new FrameNode(Opcodes.F_FULL, 12, new Object[] { "jr", "gnu/trove/iterator/TLongShortIterator", Opcodes.LONG, Opcodes.INTEGER, Opcodes.INTEGER, Opcodes.INTEGER, Opcodes.INTEGER, "adq", Opcodes.INTEGER, Opcodes.INTEGER, Opcodes.TOP, "[Ladr;" }, 0, new Object[] {})); toInject.add(new VarInsnNode(ILOAD, 10)); toInject.add(new VarInsnNode(ILOAD, 9)); LabelNode l4 = new LabelNode(); toInject.add(new JumpInsnNode(IF_ICMPGE, l4)); toInject.add(new VarInsnNode(ALOAD, 12)); toInject.add(new VarInsnNode(ILOAD, 10)); toInject.add(new InsnNode(AALOAD)); toInject.add(new VarInsnNode(ASTORE, 13)); toInject.add(new VarInsnNode(ALOAD, 13)); LabelNode l5 = new LabelNode(); toInject.add(new JumpInsnNode(IFNULL, l5)); toInject.add(new InsnNode(ICONST_0)); toInject.add(new VarInsnNode(ISTORE, 14)); LabelNode l6 = new LabelNode(); toInject.add(l6); toInject.add(new FrameNode(Opcodes.F_APPEND, 2, new Object[] { "adr", Opcodes.INTEGER }, 0, null)); toInject.add(new VarInsnNode(ILOAD, 14)); toInject.add(new InsnNode(ICONST_3)); toInject.add(new JumpInsnNode(IF_ICMPGE, l5)); toInject.add(new FieldInsnNode(GETSTATIC, "blockphysics/BlockPhysics", "updateLCG", "I")); toInject.add(new InsnNode(ICONST_3)); toInject.add(new InsnNode(IMUL)); toInject.add(new LdcInsnNode(new Integer(1013904223))); toInject.add(new InsnNode(IADD)); toInject.add(new FieldInsnNode(PUTSTATIC, "blockphysics/BlockPhysics", "updateLCG", "I")); toInject.add(new FieldInsnNode(GETSTATIC, "blockphysics/BlockPhysics", "updateLCG", "I")); toInject.add(new InsnNode(ICONST_2)); toInject.add(new InsnNode(ISHR)); toInject.add(new VarInsnNode(ISTORE, 11)); toInject.add(new VarInsnNode(ILOAD, 11)); toInject.add(new IntInsnNode(BIPUSH, 15)); toInject.add(new InsnNode(IAND)); toInject.add(new VarInsnNode(ISTORE, 15)); toInject.add(new VarInsnNode(ILOAD, 11)); toInject.add(new IntInsnNode(BIPUSH, 8)); toInject.add(new InsnNode(ISHR)); toInject.add(new IntInsnNode(BIPUSH, 15)); toInject.add(new InsnNode(IAND)); toInject.add(new VarInsnNode(ISTORE, 16)); toInject.add(new VarInsnNode(ILOAD, 11)); toInject.add(new IntInsnNode(BIPUSH, 16)); toInject.add(new InsnNode(ISHR)); toInject.add(new IntInsnNode(BIPUSH, 15)); toInject.add(new InsnNode(IAND)); toInject.add(new VarInsnNode(ISTORE, 17)); toInject.add(new VarInsnNode(ALOAD, 13)); toInject.add(new VarInsnNode(ILOAD, 15)); toInject.add(new VarInsnNode(ILOAD, 17)); toInject.add(new VarInsnNode(ILOAD, 16)); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "adr", "a", "(III)I")); toInject.add(new VarInsnNode(ISTORE, 18)); toInject.add(new VarInsnNode(ALOAD, 13)); toInject.add(new VarInsnNode(ILOAD, 15)); toInject.add(new VarInsnNode(ILOAD, 17)); toInject.add(new VarInsnNode(ILOAD, 16)); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "adr", "b", "(III)I")); toInject.add(new VarInsnNode(ISTORE, 19)); toInject.add(new FieldInsnNode(GETSTATIC, "blockphysics/BlockPhysics", "blockSet", "[[Lblockphysics/BlockDef;")); toInject.add(new VarInsnNode(ILOAD, 18)); toInject.add(new InsnNode(AALOAD)); toInject.add(new VarInsnNode(ILOAD, 19)); toInject.add(new InsnNode(AALOAD)); toInject.add(new FieldInsnNode(GETFIELD, "blockphysics/BlockDef", "randomtick", "Z")); LabelNode l7 = new LabelNode(); toInject.add(new JumpInsnNode(IFEQ, l7)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new VarInsnNode(ILOAD, 15)); toInject.add(new VarInsnNode(ILOAD, 6)); toInject.add(new InsnNode(IADD)); toInject.add(new VarInsnNode(ILOAD, 17)); toInject.add(new VarInsnNode(ALOAD, 13)); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "adr", "d", "()I")); toInject.add(new InsnNode(IADD)); toInject.add(new VarInsnNode(ILOAD, 16)); toInject.add(new VarInsnNode(ILOAD, 7)); toInject.add(new InsnNode(IADD)); toInject.add(new VarInsnNode(ILOAD, 18)); toInject.add(new VarInsnNode(ILOAD, 19)); toInject.add(new InsnNode(ICONST_0)); toInject.add(new MethodInsnNode(INVOKESTATIC, "blockphysics/BlockPhysics", "tryToMove", "(Labv;IIIIIZ)Z")); toInject.add(new InsnNode(POP)); toInject.add(l7); toInject.add(new FrameNode(Opcodes.F_FULL, 14, new Object[] { "jr", "gnu/trove/iterator/TLongShortIterator", Opcodes.LONG, Opcodes.INTEGER, Opcodes.INTEGER, Opcodes.INTEGER, Opcodes.INTEGER, "adq", Opcodes.INTEGER, Opcodes.INTEGER, Opcodes.INTEGER, "[Ladr;", "adr", Opcodes.INTEGER }, 0, new Object[] {})); toInject.add(new IincInsnNode(14, 1)); toInject.add(new JumpInsnNode(GOTO, l6)); toInject.add(l5); toInject.add(new FrameNode(Opcodes.F_FULL, 12, new Object[] { "jr", "gnu/trove/iterator/TLongShortIterator", Opcodes.LONG, Opcodes.INTEGER, Opcodes.INTEGER, Opcodes.INTEGER, Opcodes.INTEGER, "adq", Opcodes.INTEGER, Opcodes.INTEGER, Opcodes.TOP, "[Ladr;" }, 0, new Object[] {})); toInject.add(new IincInsnNode(10, 1)); toInject.add(new JumpInsnNode(GOTO, l3)); toInject.add(l4); toInject.add(new FrameNode(Opcodes.F_FULL, 2, new Object[] { "jr", "gnu/trove/iterator/TLongShortIterator" }, 0, new Object[] {})); toInject.add(new JumpInsnNode(GOTO, l1)); toInject.add(l2); toInject.add(new FrameNode(Opcodes.F_CHOP, 1, null, 0, null)); toInject.add(new InsnNode(RETURN)); m.instructions.add(toInject); ok = true; break; } } ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS); classNode.accept(cw); if (ok) System.out.println("OK"); else System.out.println("Failed." + ok); /*try { FileOutputStream fos = new FileOutputStream("d:/BlockPhysics.class"); fos.write(cw.toByteArray()); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ return cw.toByteArray(); }
From source file:ch.sourcepond.utils.podescoin.internal.method.ReadObjectEnhancer.java
License:Apache License
protected void catchBlock() { visitJumpInsn(GOTO, l5);/*from w w w .j av a 2 s. c o m*/ visitLabel(l2); visitFrame( Opcodes.F_FULL, 3, new Object[] { inspector.getInternalClassName(), OBJECT_INPUT_STREAM_INTERNAL_NAME, CONTAINER_INTERNAL_NAME }, 1, new Object[] { EXCEPTION_INTERNAL_NAME }); visitVarInsn(ASTORE, 3); visitVarInsn(ALOAD, 3); visitInsn(ATHROW); visitLabel(l3); visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { IO_EXCEPTION_INTERNAL_NAME }); visitVarInsn(ASTORE, 3); visitVarInsn(ALOAD, 3); visitInsn(ATHROW); visitLabel(l4); visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { EXCEPTION_INTERNAL_NAME }); visitVarInsn(ASTORE, 3); visitTypeInsn(NEW, IO_EXCEPTION_INTERNAL_NAME); visitInsn(DUP); visitVarInsn(ALOAD, 3); visitMethodInsn(INVOKEVIRTUAL, EXCEPTION_INTERNAL_NAME, GET_MESSAGE_NAME, GET_MESSAGE_DESC, false); visitVarInsn(ALOAD, 3); visitMethodInsn(INVOKESPECIAL, IO_EXCEPTION_INTERNAL_NAME, CONSTRUCTOR_NAME, CONSTRUCTOR_DESC, false); visitInsn(ATHROW); visitLabel(l5); }
From source file:ch.sourcepond.utils.podescoin.internal.method.WriteObjectEnhancer.java
License:Apache License
@Override protected void catchBlock() { visitJumpInsn(GOTO, l4);//from w w w.j a v a2s .c o m visitLabel(l2); visitFrame( Opcodes.F_FULL, 3, new Object[] { inspector.getInternalClassName(), OBJECT_OUTPUT_STREAM_INTERNAL_NAME, CONTAINER_INTERNAL_NAME }, 1, new Object[] { IO_EXCEPTION_INTERNAL_NAME }); visitVarInsn(ASTORE, 3); visitVarInsn(ALOAD, 3); visitInsn(ATHROW); visitLabel(l3); visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { EXCEPTION_INTERNAL_NAME }); visitVarInsn(ASTORE, 3); visitTypeInsn(NEW, IO_EXCEPTION_INTERNAL_NAME); visitInsn(DUP); visitVarInsn(ALOAD, 3); visitMethodInsn(INVOKEVIRTUAL, EXCEPTION_INTERNAL_NAME, GET_MESSAGE_NAME, GET_MESSAGE_DESC, false); visitVarInsn(ALOAD, 3); visitMethodInsn(INVOKESPECIAL, IO_EXCEPTION_INTERNAL_NAME, CONSTRUCTOR_NAME, CONSTRUCTOR_DESC, false); visitInsn(ATHROW); visitLabel(l4); }
From source file:com.gargoylesoftware.js.nashorn.internal.ir.debug.NashornTextifier.java
License:Open Source License
@Override public void visitFrame(final int type, final int nLocal, final Object[] local, final int nStack, final Object[] stack) { final StringBuilder sb = new StringBuilder(); sb.append("frame "); switch (type) { case Opcodes.F_NEW: case Opcodes.F_FULL: sb.append("full ["); appendFrameTypes(sb, nLocal, local); sb.append("] ["); appendFrameTypes(sb, nStack, stack); sb.append(']'); break;//w w w. j a v a 2 s . co m case Opcodes.F_APPEND: sb.append("append ["); appendFrameTypes(sb, nLocal, local); sb.append(']'); break; case Opcodes.F_CHOP: sb.append("chop ").append(nLocal); break; case Opcodes.F_SAME: sb.append("same"); break; case Opcodes.F_SAME1: sb.append("same1 "); appendFrameTypes(sb, 1, stack); break; default: assert false; break; } sb.append('\n'); sb.append('\n'); addText(sb); }
From source file:com.google.code.jconts.instrument.gen.AsyncMethodAdapter.java
License:Apache License
private void checkProlog() { // Generate only once (at the beginning) if (prologGenerated) { return;// w w w . j a va 2 s .com } prologGenerated = true; // try...catch around the whole body. Should be added last (after all // other try..catch blocks). // Actually, we are making an assumption that reader will emit // visitTryCatchBlock BEFORE generating any bytecode. // We cannot call visitTryCatchBlock at the end since it should // be called before all its labels are visited (which we generate // in this block). mv.visitTryCatchBlock(tryLabel, dispatchLabel, catchLabel, null); // Goto to table switch dispatcher mv.visitJumpInsn(Opcodes.GOTO, dispatchLabel); // Wrap the whole original body with try...catch that will invoke // cont.setException(Throwable t) mv.visitLabel(tryLabel); // Restore the frame as it was before changing method arguments Type[] locs = info.entryLocals; Object[] frame = new Object[info.isStatic() ? locs.length : locs.length + 1]; // Frame if (!info.isStatic()) { frame[0] = info.owner; } int off = info.isStatic() ? 0 : 1; for (int i = 0; i < locs.length; ++i) { frame[off + i] = Frames.toFrameType(locs[i]); } mv.visitFrame(Opcodes.F_FULL, frame.length, frame, 0, new Object[0]); Label label = new Label(); dispatchTable.add(label); mv.visitLabel(label); if (!info.isStatic()) { locals.add(Type.getObjectType(info.owner)); } Collections.addAll(locals, locs); // Restore the original method arguments // argX = state.varX String[] names = info.entryLocalsVars; for (int i = 0; i < info.entryLocals.length; ++i) { // We go directly to target, introduced var used target.visitVarInsn(Opcodes.ALOAD, info.isStatic() ? 0 : 1); mv.visitFieldInsn(Opcodes.GETFIELD, info.stateClassName, names[i], info.entryLocals[i].getDescriptor()); mv.visitVarInsn(info.entryLocals[i].getOpcode(Opcodes.ISTORE), info.isStatic() ? i : i + 1); } }
From source file:com.google.code.jconts.instrument.gen.AsyncMethodAdapter.java
License:Apache License
@Override public void visitFrame(int type, int nLocal, Object[] locs, int nStack, Object[] stack) { if (type == Opcodes.F_NEW) { throw new IllegalArgumentException("Expanded frames are not supported!"); }//w w w. j a v a2s . co m mv.visitFrame(type, nLocal, locs, nStack, stack); if (type == Opcodes.F_APPEND) { for (int i = 0; i < nLocal; ++i) { locals.add(Frames.fromFrameType(locs[i])); } } else if (type == Opcodes.F_CHOP) { for (int i = 0; i < nLocal; ++i) { locals.remove(locals.size() - 1); } } else if (type == Opcodes.F_FULL) { locals.clear(); for (int i = 0; i < nLocal; ++i) { locals.add(Frames.fromFrameType(locs[i])); } } }
From source file:com.google.code.jconts.instrument.util.IntroduceLocalsAdapter.java
License:Apache License
@Override public void visitFrame(int type, int nLocal, Object[] local, int nStack, Object[] stack) { if (type == Opcodes.F_FULL) { // FIXME:.... utils... Object[] newLocal = new Object[local.length + extraLocals.length]; int off = 0; if (!isStatic) { newLocal[0] = local[0];//w w w .j a v a 2 s . c om off = 1; } System.arraycopy(extraLocals, 0, newLocal, off, extraLocals.length); System.arraycopy(local, off, newLocal, extraLocals.length + off, local.length - off); super.visitFrame(Opcodes.F_FULL, newLocal.length, newLocal, nStack, stack); } else { super.visitFrame(type, nLocal, local, nStack, stack); } }
From source file:com.google.devtools.build.android.desugar.BytecodeTypeInference.java
License:Open Source License
@Override public void visitFrame(int type, int nLocal, Object[] local, int nStack, Object[] stack) { switch (type) { case Opcodes.F_NEW: // Expanded form. previousFrame = FrameInfo.create(convertTypesInStackMapFrame(nLocal, local), convertTypesInStackMapFrame(nStack, stack)); break;/*from w w w .j a v a2 s . co m*/ case Opcodes.F_SAME: // This frame type indicates that the frame has exactly the same local variables as the // previous frame and that the operand stack is empty. previousFrame = FrameInfo.create(previousFrame.locals(), ImmutableList.of()); break; case Opcodes.F_SAME1: // This frame type indicates that the frame has exactly the same local variables as the // previous frame and that the operand stack has one entry. previousFrame = FrameInfo.create(previousFrame.locals(), convertTypesInStackMapFrame(nStack, stack)); break; case Opcodes.F_APPEND: // This frame type indicates that the frame has the same locals as the previous frame except // that k additional locals are defined, and that the operand stack is empty. previousFrame = FrameInfo.create(appendArrayToList(previousFrame.locals(), nLocal, local), ImmutableList.of()); break; case Opcodes.F_CHOP: // This frame type indicates that the frame has the same local variables as the previous // frame except that the last k local variables are absent, and that the operand stack is // empty. previousFrame = FrameInfo.create(removeBackFromList(previousFrame.locals(), nLocal), ImmutableList.of()); break; case Opcodes.F_FULL: previousFrame = FrameInfo.create(convertTypesInStackMapFrame(nLocal, local), convertTypesInStackMapFrame(nStack, stack)); break; default: // continue below } // Update types for operand stack and local variables. operandStack.clear(); operandStack.addAll(previousFrame.stack()); localVariableSlots.clear(); localVariableSlots.addAll(previousFrame.locals()); super.visitFrame(type, nLocal, local, nStack, stack); }
From source file:com.khubla.jvmbasic.jvmbasicc.JVMBasicCompiler.java
License:Open Source License
/** * generate void main(String[])//from w w w .ja v a 2s. co m * <p> * <code> * public static void main(String[] args) { * ExampleProgram exampleProgram = new ExampleProgram(); * try { * exampleProgram.inputStream = System.in; * exampleProgram.outputStream = System.out; * exampleProgram.program(); * } catch (Exception e) { * e.printStackTrace(); * } * } * </code> * </p> */ protected void generateMain(String classname, ClassWriter classWriter) throws Exception { try { /* * make method */ final MethodVisitor methodVisitor = classWriter.visitMethod(Opcodes.ACC_PUBLIC + Opcodes.ACC_STATIC, "main", "([Ljava/lang/String;)V", null, null); methodVisitor.visitCode(); final Label l0 = new Label(); final Label l1 = new Label(); final Label l2 = new Label(); methodVisitor.visitTryCatchBlock(l0, l1, l2, "java/lang/Exception"); final Label l3 = new Label(); methodVisitor.visitLabel(l3); /* * declare a local instance of the class in the void() main, store as variable 1. */ methodVisitor.visitTypeInsn(Opcodes.NEW, classname); methodVisitor.visitInsn(Opcodes.DUP); methodVisitor.visitMethodInsn(Opcodes.INVOKESPECIAL, classname, "<init>", "()V"); methodVisitor.visitVarInsn(Opcodes.ASTORE, 1); /* * assign the input stream */ methodVisitor.visitVarInsn(Opcodes.ALOAD, 1); methodVisitor.visitFieldInsn(Opcodes.GETSTATIC, "java/lang/System", "in", "Ljava/io/InputStream;"); methodVisitor.visitFieldInsn(Opcodes.PUTFIELD, classname, "inputStream", "Ljava/io/InputStream;"); /* * assign the output stream */ methodVisitor.visitVarInsn(Opcodes.ALOAD, 1); methodVisitor.visitFieldInsn(Opcodes.GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;"); methodVisitor.visitFieldInsn(Opcodes.PUTFIELD, classname, "outputStream", "Ljava/io/PrintStream;"); /* * load the class instance from variable 1 and call "program" */ methodVisitor.visitLabel(l0); methodVisitor.visitVarInsn(Opcodes.ALOAD, 1); methodVisitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, classname, "program", "()V"); methodVisitor.visitLabel(l1); final Label l4 = new Label(); methodVisitor.visitJumpInsn(Opcodes.GOTO, l4); methodVisitor.visitLabel(l2); methodVisitor.visitFrame(Opcodes.F_FULL, 2, new Object[] { "[Ljava/lang/String;", classname }, 1, new Object[] { "java/lang/Exception" }); methodVisitor.visitVarInsn(Opcodes.ASTORE, 2); final Label l5 = new Label(); methodVisitor.visitLabel(l5); methodVisitor.visitLineNumber(21, l5); methodVisitor.visitVarInsn(Opcodes.ALOAD, 2); methodVisitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Exception", "printStackTrace", "()V"); /* * return */ methodVisitor.visitLabel(l4); methodVisitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null); methodVisitor.visitInsn(Opcodes.RETURN); /* * declare the parameters */ final Label l6 = new Label(); methodVisitor.visitLabel(l6); methodVisitor.visitLocalVariable("args", "[Ljava/lang/String;", null, l3, l6, 0); methodVisitor.visitLocalVariable("exampleProgram", "L" + classname + ";", null, l0, l6, 1); methodVisitor.visitLocalVariable("e", "Ljava/lang/Exception;", null, l5, l4, 2); /* * done */ methodVisitor.visitMaxs(2, 3); methodVisitor.visitEnd(); } catch (final Exception e) { throw new Exception("Exception in generateMain", e); } }
From source file:com.sixrr.metrics.profile.instanceHolder.MetricInstanceHolder.java
License:Apache License
private void loadMetricsFromProviders() { for (MetricProvider provider : MetricProvider.EXTENSION_POINT_NAME.getExtensions()) { final List<Class<? extends Metric>> classesForProvider = provider.getMetricClasses(); for (Class<? extends Metric> aClass : classesForProvider) { try { myMetricInstances.put(aClass.getName(), aClass.newInstance()); } catch (InstantiationException e) { MetricInstanceHolder.LOGGER.error(e); } catch (IllegalAccessException e) { MetricInstanceHolder.LOGGER.error(e); }// ww w .j a v a2 s . c om } } for (Metric metric : Metric.EP_NAME.getExtensions()) { myMetricInstances.put(metric.getClass().getName(), metric); } // add some magic // in Profiles it stored by ClassName. Line Of code is can be handle without new metrics, need only extends LinesOfCodeProjectMetric with // new name for (LineOfCodeFileTypeProviderEP ep : LineOfCodeFileTypeProviderEP.EP_NAME.getExtensions()) { FileType fileTypeByFileName = FileTypeRegistry.getInstance().findFileTypeByName(ep.fileType); if (fileTypeByFileName == null) { LOGGER.error("File type is unknown: " + ep.fileType); fileTypeByFileName = PlainTextFileType.INSTANCE; } String lineOfCodeClass = Type.getInternalName(LinesOfCodeProjectMetric.class); String className = lineOfCodeClass + "$" + ep.fileType; ClassWriter writer = new ClassWriter(Opcodes.F_FULL); writer.visit(Opcodes.V1_6, Opcodes.ACC_PUBLIC, className, null, lineOfCodeClass, null); String desc = Type.getConstructorDescriptor(LinesOfCodeProjectMetric.class.getConstructors()[0]); MethodVisitor methodVisitor = writer.visitMethod(Opcodes.ACC_PUBLIC, "<init>", desc, null, null); methodVisitor.visitMaxs(2, 2); methodVisitor.visitVarInsn(Opcodes.ALOAD, 0); methodVisitor.visitVarInsn(Opcodes.ALOAD, 1); methodVisitor.visitMethodInsn(Opcodes.INVOKESPECIAL, lineOfCodeClass, "<init>", desc); methodVisitor.visitInsn(Opcodes.RETURN); methodVisitor.visitEnd(); writer.visitEnd(); Class<?> aClass = defineClass(className.replace("/", "."), writer.toByteArray()); try { myMetricInstances.put(aClass.getName(), (Metric) aClass.getConstructors()[0].newInstance(fileTypeByFileName)); } catch (InstantiationException e) { LOGGER.error(e); } catch (IllegalAccessException e) { LOGGER.error(e); } catch (InvocationTargetException e) { LOGGER.error(e); } } }