List of usage examples for org.objectweb.asm Opcodes ICONST_0
int ICONST_0
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From source file:de.dynamicfiles.projects.gradle.plugins.javafx.tasks.internal.MonkeyPatcher.java
License:Apache License
private static void doMonkeyPatchFileHandleLeak(ClassReader classReader, ClassWriter classWriter) { classReader.accept(new ClassVisitor(Opcodes.ASM5, classWriter) { @Override//from ww w. j av a 2 s .c o m public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) { if (!(name.equals(METHOD_TO_MONKEY_PATCH) && desc.equals(METHOD_SIGNATURE_TO_MONKEY_PATCH))) { return super.visitMethod(access, name, desc, signature, exceptions); } // helpful source: http://web.cs.ucla.edu/~msb/cs239-tutorial/ // "We will do this using the Adapter Pattern. Adapters wrap an object, overriding some of its methods, and delegating to the others." // ugly adapter-pattern ... took me more time than I really can tell here <.< return getMonkeyPatchedFileHandleLeakMethodVisitor(access, name, desc, signature, exceptions); } private MethodVisitor getMonkeyPatchedFileHandleLeakMethodVisitor(int access, String name, String desc, String signature, String[] exceptions) { return new MethodVisitor(Opcodes.ASM5, super.visitMethod(access, name, desc, signature, exceptions)) { /* TODO improve detection of lambda-positions, numbers might vary on different compile-versions */ @Override public void visitCode() { // This mostly got generated from ASM itself, except some adjustments for lambda-IDs and removed "visitMaxs()"-call String javalangThrowable = "java/lang/Throwable"; String javaioFile = "java/io/File"; String javalangString = "java/lang/String"; Label l0 = new Label(); Label l1 = new Label(); Label l2 = new Label(); mv.visitTryCatchBlock(l0, l1, l2, javalangThrowable); Label l3 = new Label(); Label l4 = new Label(); Label l5 = new Label(); mv.visitTryCatchBlock(l3, l4, l5, javalangThrowable); Label l6 = new Label(); mv.visitTryCatchBlock(l3, l4, l6, null); Label l7 = new Label(); Label l8 = new Label(); Label l9 = new Label(); mv.visitTryCatchBlock(l7, l8, l9, javalangThrowable); Label l10 = new Label(); mv.visitTryCatchBlock(l5, l10, l6, null); mv.visitInsn(Opcodes.ACONST_NULL); mv.visitVarInsn(Opcodes.ASTORE, 3); mv.visitVarInsn(Opcodes.ALOAD, 2); Label l11 = new Label(); mv.visitJumpInsn(Opcodes.IFNULL, l11); mv.visitVarInsn(Opcodes.ALOAD, 2); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, javaioFile, "isDirectory", "()Z", false); Label l12 = new Label(); mv.visitJumpInsn(Opcodes.IFNE, l12); mv.visitLabel(l11); mv.visitFrame(Opcodes.F_APPEND, 1, new Object[] { javalangString }, 0, null); mv.visitTypeInsn(Opcodes.NEW, javaioFile); mv.visitInsn(Opcodes.DUP); mv.visitLdcInsn("java.home"); mv.visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/System", "getProperty", "(Ljava/lang/String;)Ljava/lang/String;", false); mv.visitMethodInsn(Opcodes.INVOKESPECIAL, javaioFile, "<init>", "(Ljava/lang/String;)V", false); mv.visitVarInsn(Opcodes.ASTORE, 2); mv.visitLabel(l12); mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null); mv.visitFieldInsn(Opcodes.GETSTATIC, "com/oracle/tools/packager/windows/WinAppBundler", "VS_VERS", "[Ljava/lang/String;"); mv.visitVarInsn(Opcodes.ASTORE, 4); mv.visitVarInsn(Opcodes.ALOAD, 4); mv.visitInsn(Opcodes.ARRAYLENGTH); mv.visitVarInsn(Opcodes.ISTORE, 5); mv.visitInsn(Opcodes.ICONST_0); mv.visitVarInsn(Opcodes.ISTORE, 6); Label l13 = new Label(); mv.visitLabel(l13); mv.visitFrame(Opcodes.F_APPEND, 3, new Object[] { "[Ljava/lang/String;", Opcodes.INTEGER, Opcodes.INTEGER }, 0, null); mv.visitVarInsn(Opcodes.ILOAD, 6); mv.visitVarInsn(Opcodes.ILOAD, 5); Label l14 = new Label(); mv.visitJumpInsn(Opcodes.IF_ICMPGE, l14); mv.visitVarInsn(Opcodes.ALOAD, 4); mv.visitVarInsn(Opcodes.ILOAD, 6); mv.visitInsn(Opcodes.AALOAD); mv.visitVarInsn(Opcodes.ASTORE, 7); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitVarInsn(Opcodes.ALOAD, 1); mv.visitVarInsn(Opcodes.ALOAD, 7); mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "com/oracle/tools/packager/windows/WinAppBundler", "copyMSVCDLLs", "(Ljava/io/File;Ljava/lang/String;)Z", false); Label l15 = new Label(); mv.visitJumpInsn(Opcodes.IFEQ, l15); mv.visitVarInsn(Opcodes.ALOAD, 7); mv.visitVarInsn(Opcodes.ASTORE, 3); mv.visitJumpInsn(Opcodes.GOTO, l14); mv.visitLabel(l15); mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null); mv.visitIincInsn(6, 1); mv.visitJumpInsn(Opcodes.GOTO, l13); mv.visitLabel(l14); mv.visitFrame(Opcodes.F_CHOP, 3, null, 0, null); mv.visitVarInsn(Opcodes.ALOAD, 3); Label l16 = new Label(); mv.visitJumpInsn(Opcodes.IFNONNULL, l16); mv.visitTypeInsn(Opcodes.NEW, "java/lang/RuntimeException"); mv.visitInsn(Opcodes.DUP); mv.visitLdcInsn("Not found MSVC dlls"); mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/RuntimeException", "<init>", "(Ljava/lang/String;)V", false); mv.visitInsn(Opcodes.ATHROW); mv.visitLabel(l16); mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null); mv.visitTypeInsn(Opcodes.NEW, "java/util/concurrent/atomic/AtomicReference"); mv.visitInsn(Opcodes.DUP); mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/util/concurrent/atomic/AtomicReference", "<init>", "()V", false); mv.visitVarInsn(Opcodes.ASTORE, 4); mv.visitVarInsn(Opcodes.ALOAD, 3); mv.visitVarInsn(Opcodes.ASTORE, 5); mv.visitVarInsn(Opcodes.ALOAD, 2); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, javaioFile, "toPath", "()Ljava/nio/file/Path;", false); mv.visitLdcInsn("bin"); mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/nio/file/Path", "resolve", "(Ljava/lang/String;)Ljava/nio/file/Path;", true); mv.visitMethodInsn(Opcodes.INVOKESTATIC, "java/nio/file/Files", "list", "(Ljava/nio/file/Path;)Ljava/util/stream/Stream;", false); mv.visitVarInsn(Opcodes.ASTORE, 6); mv.visitInsn(Opcodes.ACONST_NULL); mv.visitVarInsn(Opcodes.ASTORE, 7); mv.visitLabel(l3); mv.visitVarInsn(Opcodes.ALOAD, 6); mv.visitInvokeDynamicInsn("test", "()Ljava/util/function/Predicate;", new Handle( Opcodes.H_INVOKESTATIC, "java/lang/invoke/LambdaMetafactory", "metafactory", "(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;"), new Object[] { Type.getType("(Ljava/lang/Object;)Z"), new Handle(Opcodes.H_INVOKESTATIC, "com/oracle/tools/packager/windows/WinAppBundler", "lambda$copyMSVCDLLs$261", "(Ljava/nio/file/Path;)Z"), Type.getType("(Ljava/nio/file/Path;)Z") }); // modified lambda-name mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/stream/Stream", "filter", "(Ljava/util/function/Predicate;)Ljava/util/stream/Stream;", true); mv.visitVarInsn(Opcodes.ALOAD, 5); mv.visitInvokeDynamicInsn("test", "(Ljava/lang/String;)Ljava/util/function/Predicate;", new Handle(Opcodes.H_INVOKESTATIC, "java/lang/invoke/LambdaMetafactory", "metafactory", "(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;"), new Object[] { Type.getType("(Ljava/lang/Object;)Z"), new Handle( Opcodes.H_INVOKESTATIC, "com/oracle/tools/packager/windows/WinAppBundler", "lambda$copyMSVCDLLs$262", "(Ljava/lang/String;Ljava/nio/file/Path;)Z"), Type.getType("(Ljava/nio/file/Path;)Z") }); // modified lambda-name mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/stream/Stream", "filter", "(Ljava/util/function/Predicate;)Ljava/util/stream/Stream;", true); mv.visitVarInsn(Opcodes.ALOAD, 1); mv.visitVarInsn(Opcodes.ALOAD, 4); mv.visitInvokeDynamicInsn("accept", "(Ljava/io/File;Ljava/util/concurrent/atomic/AtomicReference;)Ljava/util/function/Consumer;", new Handle(Opcodes.H_INVOKESTATIC, "java/lang/invoke/LambdaMetafactory", "metafactory", "(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;"), new Object[] { Type.getType("(Ljava/lang/Object;)V"), new Handle( Opcodes.H_INVOKESTATIC, "com/oracle/tools/packager/windows/WinAppBundler", "lambda$copyMSVCDLLs$263", "(Ljava/io/File;Ljava/util/concurrent/atomic/AtomicReference;Ljava/nio/file/Path;)V"), Type.getType("(Ljava/nio/file/Path;)V") }); // modified lambda-name mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/stream/Stream", "forEach", "(Ljava/util/function/Consumer;)V", true); mv.visitLabel(l4); mv.visitVarInsn(Opcodes.ALOAD, 6); Label l17 = new Label(); mv.visitJumpInsn(Opcodes.IFNULL, l17); mv.visitVarInsn(Opcodes.ALOAD, 7); Label l18 = new Label(); mv.visitJumpInsn(Opcodes.IFNULL, l18); mv.visitLabel(l0); mv.visitVarInsn(Opcodes.ALOAD, 6); mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/stream/Stream", "close", "()V", true); mv.visitLabel(l1); mv.visitJumpInsn(Opcodes.GOTO, l17); mv.visitLabel(l2); mv.visitFrame(Opcodes.F_FULL, 8, new Object[] { "com/oracle/tools/packager/windows/WinAppBundler", javaioFile, javaioFile, javalangString, "java/util/concurrent/atomic/AtomicReference", javalangString, "java/util/stream/Stream", javalangThrowable }, 1, new Object[] { javalangThrowable }); mv.visitVarInsn(Opcodes.ASTORE, 8); mv.visitVarInsn(Opcodes.ALOAD, 7); mv.visitVarInsn(Opcodes.ALOAD, 8); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, javalangThrowable, "addSuppressed", "(Ljava/lang/Throwable;)V", false); mv.visitJumpInsn(Opcodes.GOTO, l17); mv.visitLabel(l18); mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null); mv.visitVarInsn(Opcodes.ALOAD, 6); mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/stream/Stream", "close", "()V", true); mv.visitJumpInsn(Opcodes.GOTO, l17); mv.visitLabel(l5); mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { javalangThrowable }); mv.visitVarInsn(Opcodes.ASTORE, 8); mv.visitVarInsn(Opcodes.ALOAD, 8); mv.visitVarInsn(Opcodes.ASTORE, 7); mv.visitVarInsn(Opcodes.ALOAD, 8); mv.visitInsn(Opcodes.ATHROW); mv.visitLabel(l6); mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { javalangThrowable }); mv.visitVarInsn(Opcodes.ASTORE, 9); mv.visitLabel(l10); mv.visitVarInsn(Opcodes.ALOAD, 6); Label l19 = new Label(); mv.visitJumpInsn(Opcodes.IFNULL, l19); mv.visitVarInsn(Opcodes.ALOAD, 7); Label l20 = new Label(); mv.visitJumpInsn(Opcodes.IFNULL, l20); mv.visitLabel(l7); mv.visitVarInsn(Opcodes.ALOAD, 6); mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/stream/Stream", "close", "()V", true); mv.visitLabel(l8); mv.visitJumpInsn(Opcodes.GOTO, l19); mv.visitLabel(l9); mv.visitFrame(Opcodes.F_FULL, 10, new Object[] { "com/oracle/tools/packager/windows/WinAppBundler", javaioFile, javaioFile, javalangString, "java/util/concurrent/atomic/AtomicReference", javalangString, "java/util/stream/Stream", javalangThrowable, Opcodes.TOP, javalangThrowable }, 1, new Object[] { javalangThrowable }); mv.visitVarInsn(Opcodes.ASTORE, 10); mv.visitVarInsn(Opcodes.ALOAD, 7); mv.visitVarInsn(Opcodes.ALOAD, 10); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, javalangThrowable, "addSuppressed", "(Ljava/lang/Throwable;)V", false); mv.visitJumpInsn(Opcodes.GOTO, l19); mv.visitLabel(l20); mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null); mv.visitVarInsn(Opcodes.ALOAD, 6); mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/stream/Stream", "close", "()V", true); mv.visitLabel(l19); mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null); mv.visitVarInsn(Opcodes.ALOAD, 9); mv.visitInsn(Opcodes.ATHROW); mv.visitLabel(l17); mv.visitFrame(Opcodes.F_FULL, 6, new Object[] { "com/oracle/tools/packager/windows/WinAppBundler", javaioFile, javaioFile, javalangString, "java/util/concurrent/atomic/AtomicReference", javalangString }, 0, new Object[] {}); mv.visitVarInsn(Opcodes.ALOAD, 4); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/util/concurrent/atomic/AtomicReference", "get", "()Ljava/lang/Object;", false); mv.visitTypeInsn(Opcodes.CHECKCAST, "java/io/IOException"); mv.visitVarInsn(Opcodes.ASTORE, 6); mv.visitVarInsn(Opcodes.ALOAD, 6); Label l21 = new Label(); mv.visitJumpInsn(Opcodes.IFNULL, l21); mv.visitVarInsn(Opcodes.ALOAD, 6); mv.visitInsn(Opcodes.ATHROW); mv.visitLabel(l21); mv.visitFrame(Opcodes.F_APPEND, 1, new Object[] { "java/io/IOException" }, 0, null); mv.visitInsn(Opcodes.RETURN); } }; } }, ClassReader.EXPAND_FRAMES); // ClassReader.EXPAND_FRAMES required for Java 8 }
From source file:de.fhkoeln.gm.cui.javahardener.CheckNullMethodVisitor.java
License:Open Source License
/** * Push the default value to the stack for the given type. * /* w w w . j a v a 2s. c om*/ * @param type */ private void pushDefault(Type type) { switch (type.getSort()) { case Type.VOID: break; case Type.BOOLEAN: super.visitIntInsn(Opcodes.BIPUSH, 0); // Push false to the stack break; case Type.BYTE: super.visitIntInsn(Opcodes.BIPUSH, 0); // Push byte 0 to the stack break; case Type.CHAR: super.visitIntInsn(Opcodes.BIPUSH, 0); // Push char 0 to the stack break; case Type.SHORT: super.visitIntInsn(Opcodes.SIPUSH, 0); // Push short 0 to the stack break; case Type.INT: super.visitInsn(Opcodes.ICONST_0); // Push int 0 to the stack break; case Type.FLOAT: super.visitInsn(Opcodes.FCONST_0); // Push float 0 to the stack break; case Type.LONG: super.visitInsn(Opcodes.LCONST_0); // Push long 0 to the stack break; case Type.DOUBLE: super.visitInsn(Opcodes.DCONST_0); // Push double 0 to the stack break; default: super.visitInsn(Opcodes.ACONST_NULL); // Push NULL to the stack break; } }
From source file:de.kandid.model.Emitter.java
License:Apache License
/** * Assembles a class that implements the given interface by generating the byte code. * @param interfaze the interface to implement * @return the class//from w w w. jav a 2 s . c o m */ private static Class<? extends Emitter<?>> makeClass(Class<?> interfaze) { String nameClass = _nameEmitter + '$' + interfaze.getName().replace('.', '$'); String nameInterface = Type.getInternalName(interfaze); // ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES); ClassWriter cw = new ClassWriter(0); cw.visit(V1_4, ACC_PUBLIC + ACC_SUPER, nameClass, null, _nameEmitter, new String[] { name(interfaze) }); // Generate default construcotor MethodVisitor cv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null); cv.visitVarInsn(ALOAD, 0); cv.visitMethodInsn(INVOKESPECIAL, _nameEmitter, "<init>", "()V"); cv.visitInsn(RETURN); cv.visitMaxs(1, 1); // Generate methods Method[] methods = interfaze.getMethods(); for (int i = 0; i < methods.length; ++i) { final Method m = methods[i]; if (m.getReturnType() != void.class) throw new IllegalArgumentException("Method " + m.toGenericString() + " must not return a value"); final String descMethod = Type.getMethodDescriptor(m); final MethodVisitor mw = cw.visitMethod(ACC_PUBLIC + ACC_SYNCHRONIZED, m.getName(), descMethod, null, null); final Type[] argTypes = Type.getArgumentTypes(m); // for (int i = 0; i < _end; i += 2) // ((Listener) _listeners[i]).send(...); int localStart = 1; // give one for "this" for (Type at : argTypes) localStart += at.getSize(); Label entry = new Label(); Label exit = new Label(); mw.visitLabel(entry); // _isFiring = true; mw.visitVarInsn(ALOAD, 0); mw.visitInsn(Opcodes.ICONST_1); mw.visitFieldInsn(Opcodes.PUTFIELD, nameClass, "_isFiring", Type.BOOLEAN_TYPE.getDescriptor()); // setup local variables: i, _listeners, _end mw.visitLocalVariable("i", Type.INT_TYPE.getDescriptor(), null, entry, exit, localStart); mw.visitInsn(Opcodes.ICONST_0); mw.visitIntInsn(Opcodes.ISTORE, localStart); mw.visitLocalVariable("listeners", _descObjectArray, null, entry, exit, localStart + 1); mw.visitVarInsn(ALOAD, 0); mw.visitFieldInsn(GETFIELD, nameClass, "_listeners", _descObjectArray); mw.visitIntInsn(Opcodes.ASTORE, localStart + 1); mw.visitLocalVariable("end", Type.INT_TYPE.getDescriptor(), null, entry, exit, localStart + 2); mw.visitVarInsn(ALOAD, 0); mw.visitFieldInsn(GETFIELD, nameClass, "_end", Type.INT_TYPE.getDescriptor()); mw.visitIntInsn(Opcodes.ISTORE, localStart + 2); final Label condition = new Label(); mw.visitJumpInsn(GOTO, condition); final Label loop = new Label(); mw.visitLabel(loop); //((Listener) _listeners[i]).doSomething() mw.visitIntInsn(Opcodes.ALOAD, localStart + 1); mw.visitIntInsn(Opcodes.ILOAD, localStart); mw.visitInsn(Opcodes.AALOAD); mw.visitTypeInsn(CHECKCAST, nameInterface); int offs = 1; // give one for "this" for (Type at : argTypes) { mw.visitVarInsn(at.getOpcode(ILOAD), offs); offs += at.getSize(); } mw.visitMethodInsn(INVOKEINTERFACE, nameInterface, m.getName(), descMethod); // i += 2 mw.visitIincInsn(localStart, 2); // if (i < end) goto loop mw.visitLabel(condition); mw.visitIntInsn(Opcodes.ILOAD, localStart); mw.visitIntInsn(Opcodes.ILOAD, localStart + 2); mw.visitJumpInsn(Opcodes.IF_ICMPLT, loop); // _isFiring = false; mw.visitVarInsn(ALOAD, 0); mw.visitInsn(Opcodes.ICONST_0); mw.visitFieldInsn(Opcodes.PUTFIELD, nameClass, "_isFiring", Type.BOOLEAN_TYPE.getDescriptor()); mw.visitLabel(exit); mw.visitInsn(RETURN); mw.visitMaxs(localStart + 2, localStart + 3); mw.visitEnd(); } cw.visitEnd(); return _loader.loadClass(cw, nameClass.replace('/', '.')); }
From source file:de.sanandrew.core.manpack.transformer.TransformEnderman.java
License:Creative Commons License
private static byte[] transformEnderman(byte[] bytes) { ClassNode clazz = ASMHelper.createClassNode(bytes); MethodNode method = ASMHelper.findMethod(clazz, ASMNames.MD_ENDERMAN_SHOULD_ATTACK_PLAYER); InsnList needle = new InsnList(); needle.add(new VarInsnNode(Opcodes.ALOAD, 1)); needle.add(ASMHelper.getFieldInsnNode(Opcodes.GETFIELD, ASMNames.FD_PLAYER_INVENTORY)); needle.add(ASMHelper.getFieldInsnNode(Opcodes.GETFIELD, ASMNames.FD_INVPLAYER_ARMOR_INVENTORY)); needle.add(new InsnNode(Opcodes.ICONST_3)); needle.add(new InsnNode(Opcodes.AALOAD)); needle.add(new VarInsnNode(Opcodes.ASTORE, 2)); AbstractInsnNode insertPt = ASMHelper.findFirstNodeFromNeedle(method.instructions, needle); InsnList newInstr = new InsnList(); newInstr.add(ASMHelper.getFieldInsnNode(Opcodes.GETSTATIC, ASMNames.FD_SAPUTILS_EVENT_BUS)); newInstr.add(new TypeInsnNode(Opcodes.NEW, ASMNames.CL_ENDER_FACING_EVENT)); newInstr.add(new InsnNode(Opcodes.DUP)); newInstr.add(new VarInsnNode(Opcodes.ALOAD, 1)); newInstr.add(new VarInsnNode(Opcodes.ALOAD, 0)); newInstr.add(ASMHelper.getMethodInsnNode(Opcodes.INVOKESPECIAL, ASMNames.MD_ENDERFACINGEVENT_INIT, false)); newInstr.add(ASMHelper.getMethodInsnNode(Opcodes.INVOKEVIRTUAL, ASMNames.MD_EVENT_BUS_POST, false)); LabelNode l1 = new LabelNode(); newInstr.add(new JumpInsnNode(Opcodes.IFEQ, l1)); newInstr.add(new InsnNode(Opcodes.ICONST_0)); newInstr.add(new InsnNode(Opcodes.IRETURN)); newInstr.add(l1);//from www. j a v a 2s . c om method.instructions.insertBefore(insertPt, newInstr); return ASMHelper.createBytes(clazz, /*ClassWriter.COMPUTE_FRAMES |*/ ClassWriter.COMPUTE_MAXS); }
From source file:de.sanandrew.core.manpack.transformer.TransformEntityThrowable.java
License:Creative Commons License
private static byte[] transformLqThrowable(byte[] bytes) { ClassNode classNode = ASMHelper.createClassNode(bytes); MethodNode method = ASMHelper.getMethodNode(Opcodes.ACC_PUBLIC, ASMNames.MD_SAP_CAN_IMPACT_ON_LIQUID); method.visitCode();//from w ww . ja v a2s . c om Label label1 = new Label(); method.visitLabel(label1); method.visitInsn(Opcodes.ICONST_0); method.visitInsn(Opcodes.IRETURN); Label label2 = new Label(); method.visitLabel(label2); method.visitLocalVariable("this", ASMNames.CL_T_ENTITY_THROWABLE, null, label1, label2, 0); method.visitMaxs(0, 0); method.visitEnd(); classNode.methods.add(method); method = ASMHelper.findMethod(classNode, ASMNames.MD_THROWABLE_ON_UPDATE); InsnList needle = new InsnList(); needle.add(ASMHelper.getFieldInsnNode(Opcodes.GETFIELD, ASMNames.FD_THROWABLE_MOTION_Z)); needle.add(new InsnNode(Opcodes.DADD)); needle.add(ASMHelper.getMethodInsnNode(Opcodes.INVOKESTATIC, ASMNames.MD_VEC3_CREATE_VECTOR_HELPER, false)); needle.add(new VarInsnNode(Opcodes.ASTORE, 2)); needle.add(new LabelNode()); needle.add(new LineNumberNode(-1, new LabelNode())); needle.add(new VarInsnNode(Opcodes.ALOAD, 0)); needle.add(ASMHelper.getFieldInsnNode(Opcodes.GETFIELD, ASMNames.FD_THROWABLE_WORLD_OBJ)); needle.add(new VarInsnNode(Opcodes.ALOAD, 1)); needle.add(new VarInsnNode(Opcodes.ALOAD, 2)); needle.add(ASMHelper.getMethodInsnNode(Opcodes.INVOKEVIRTUAL, ASMNames.MD_WORLD_RAY_TRACE_BLOCKS, false)); needle.add(new VarInsnNode(Opcodes.ASTORE, -1)); VarInsnNode insertPoint = (VarInsnNode) ASMHelper.findLastNodeFromNeedle(method.instructions, needle); InsnList injectList = new InsnList(); injectList.add(new LabelNode()); injectList.add(new VarInsnNode(Opcodes.ALOAD, 0)); injectList.add(ASMHelper.getFieldInsnNode(Opcodes.GETFIELD, ASMNames.FD_THROWABLE_WORLD_OBJ)); injectList.add(new VarInsnNode(Opcodes.ALOAD, 1)); injectList.add(new VarInsnNode(Opcodes.ALOAD, 2)); injectList.add(new VarInsnNode(Opcodes.ALOAD, 0)); injectList.add( ASMHelper.getMethodInsnNode(Opcodes.INVOKEVIRTUAL, ASMNames.MD_SAP_CAN_IMPACT_ON_LIQUID, false)); injectList.add( ASMHelper.getMethodInsnNode(Opcodes.INVOKEVIRTUAL, ASMNames.MD_WORLD_RAY_TRACE_BLOCKS_Z, false)); injectList.add(new VarInsnNode(Opcodes.ASTORE, insertPoint.var)); method.instructions.insert(insertPoint, injectList); return ASMHelper.createBytes(classNode, /*ClassWriter.COMPUTE_FRAMES |*/ ClassWriter.COMPUTE_MAXS); }
From source file:de.sanandrew.core.manpack.transformer.TransformHorseArmor.java
License:Creative Commons License
private static MethodNode injectMethodSetCustomArmorItem() { MethodNode method = ASMHelper.getMethodNode(Opcodes.ACC_PRIVATE, ASMNames.MD_SAP_SET_CUSTOM_ARMOR_ITEM); method.visitCode();//from ww w. j a v a2 s .c o m Label l0 = new Label(); method.visitLabel(l0); method.visitVarInsn(Opcodes.ALOAD, 1); Label l1 = new Label(); method.visitJumpInsn(Opcodes.IFNONNULL, l1); method.visitTypeInsn(Opcodes.NEW, ASMNames.CL_ITEM_STACK); method.visitInsn(Opcodes.DUP); ASMHelper.visitFieldInsn(method, Opcodes.GETSTATIC, ASMNames.FD_ITEMS_IRON_SHOVEL); method.visitInsn(Opcodes.ICONST_0); ASMHelper.visitMethodInsn(method, Opcodes.INVOKESPECIAL, ASMNames.MD_ITEMSTACK_INIT, false); method.visitVarInsn(Opcodes.ASTORE, 1); method.visitLabel(l1); method.visitFrame(Opcodes.F_SAME, 0, null, 0, null); method.visitVarInsn(Opcodes.ALOAD, 0); ASMHelper.visitFieldInsn(method, Opcodes.GETFIELD, ASMNames.FD_HORSE_DATAWATCHER); method.visitIntInsn(Opcodes.BIPUSH, 23); method.visitVarInsn(Opcodes.ALOAD, 1); ASMHelper.visitMethodInsn(method, Opcodes.INVOKEVIRTUAL, ASMNames.MD_DATAWATCHER_UPDATE_OBJ, false); Label l3 = new Label(); method.visitLabel(l3); method.visitInsn(Opcodes.RETURN); Label l4 = new Label(); method.visitLabel(l4); method.visitLocalVariable("this", ASMNames.CL_T_ENTITY_HORSE, null, l0, l3, 0); method.visitLocalVariable("stack", ASMNames.CL_T_ITEM_STACK, null, l0, l3, 1); method.visitMaxs(5, 2); method.visitEnd(); return method; }
From source file:de.sanandrew.core.manpack.transformer.TransformHorseArmor.java
License:Creative Commons License
private static void transformEntityInit(MethodNode method) { InsnList needle = new InsnList(); needle.add(new VarInsnNode(Opcodes.ALOAD, 0)); needle.add(ASMHelper.getFieldInsnNode(Opcodes.GETFIELD, ASMNames.FD_HORSE_DATAWATCHER)); needle.add(new IntInsnNode(Opcodes.BIPUSH, 22)); needle.add(new InsnNode(Opcodes.ICONST_0)); needle.add(ASMHelper.getMethodInsnNode(Opcodes.INVOKESTATIC, ASMNames.MD_INTEGER_VALUE_OF, false)); needle.add(ASMHelper.getMethodInsnNode(Opcodes.INVOKEVIRTUAL, ASMNames.MD_DATAWATCHER_ADD_OBJECT, false)); AbstractInsnNode pointer = ASMHelper.findLastNodeFromNeedle(method.instructions, needle); InsnList newInstr = new InsnList(); newInstr.add(new LabelNode()); newInstr.add(new VarInsnNode(Opcodes.ALOAD, 0)); newInstr.add(ASMHelper.getFieldInsnNode(Opcodes.GETFIELD, ASMNames.FD_HORSE_DATAWATCHER)); newInstr.add(new IntInsnNode(Opcodes.BIPUSH, 23)); newInstr.add(new TypeInsnNode(Opcodes.NEW, ASMNames.CL_ITEM_STACK)); newInstr.add(new InsnNode(Opcodes.DUP)); newInstr.add(ASMHelper.getFieldInsnNode(Opcodes.GETSTATIC, ASMNames.FD_ITEMS_IRON_SHOVEL)); newInstr.add(new InsnNode(Opcodes.ICONST_0)); newInstr.add(ASMHelper.getMethodInsnNode(Opcodes.INVOKESPECIAL, ASMNames.MD_ITEMSTACK_INIT, false)); newInstr.add(ASMHelper.getMethodInsnNode(Opcodes.INVOKEVIRTUAL, ASMNames.MD_DATAWATCHER_ADD_OBJECT, false)); method.instructions.insert(pointer, newInstr); }
From source file:de.tuberlin.uebb.jbop.optimizer.array.LocalArrayLengthInlinerTest.java
License:Open Source License
/** * Tests that LocalArrayLengthInliner is working correctly. * //from w ww . j a va 2 s . com * @throws Exception * the exception */ @Test public void test_newarrayAndSubarray() throws Exception { // INIT final String owner = "de.tuberlin.uebb.jbop.optimizer.array.LocalArrayLengthTestClass"; final ClassNodeBuilder builder = ClassNodeBuilder.createClass(owner).// addField("doubleArray", "[[D").initArray(15, 42) .withModifiers(Opcodes.ACC_PRIVATE, Opcodes.ACC_FINAL).// addMethod("getArrayLength", "()I").withAnnotation(Optimizable.class).// addArray("[D", 15).// 3 -> 3 addInsn(new VarInsnNode(Opcodes.ALOAD, 1)).// 1 -> 0| addInsn(new InsnNode(Opcodes.ARRAYLENGTH)).// 1 -> 0|1 addGetClassField("doubleArray").// 2 -> 2 addInsn(new InsnNode(Opcodes.ICONST_0)).// 1 -> 1 addInsn(new InsnNode(Opcodes.AALOAD)).// 1 -> 1 addInsn(new VarInsnNode(Opcodes.ASTORE, 2)).// 1 -> 1 addInsn(new VarInsnNode(Opcodes.ALOAD, 2)).// 1 -> 0| addInsn(new InsnNode(Opcodes.ARRAYLENGTH)).// 1 -> 0|1 addInsn(new InsnNode(Opcodes.IADD)).// 1 -> 1 addInsn(new InsnNode(Opcodes.IRETURN));// 1 -> 1 // 14 -> 12 final LocalArrayLengthInliner inliner = new LocalArrayLengthInliner(); inliner.setInputObject(builder.toClass().instance()); // RUN STEP 1 final MethodNode method = builder.getMethod("getArrayLength"); assertEquals(14, method.instructions.size()); final InsnList optimized = inliner.optimize(method.instructions, method); method.instructions = optimized; // ASSERT STEP 1 assertEquals(12, optimized.size()); assertEquals(15, NodeHelper.getNumberValue(optimized.get(3)).intValue()); assertEquals(42, NodeHelper.getNumberValue(optimized.get(9)).intValue()); // RUN STEP 2 final InsnList optimized2 = inliner.optimize(method.instructions, method); // ASSERT STEP 2 assertEquals(12, optimized2.size()); }
From source file:de.tuberlin.uebb.jbop.optimizer.array.LocalArrayValueInlinerTest.java
License:Open Source License
/** * Tests that LocalArrayValueInliner is working correctly. * //from w w w.ja v a 2 s. co m * @throws Exception * the exception */ @Test public void testLocalArrayValueInliner() throws Exception { // INIT final String owner = "de.tuberlin.uebb.jbop.optimizer.array.LocalArrayValueTestClass"; final ClassNodeBuilder builder = ClassNodeBuilder.createClass(owner).// addField("doubleArray", "[[D").// withAnnotation(ImmutableArray.class).// withModifiers(Opcodes.ACC_PRIVATE, Opcodes.ACC_FINAL).// initArray(2, 2).// initMultiArrayWith(1.0, 0, 0).// initMultiArrayWith(2.0, 0, 1).// initMultiArrayWith(3.0, 1, 0).// initMultiArrayWith(4.0, 1, 1).// addMethod("getArrayValue", "()D").withAnnotation(Optimizable.class).// addGetClassField("doubleArray").// 2 -> 2 addInsn(new InsnNode(Opcodes.ICONST_0)).// 1 -> 1 addInsn(new InsnNode(Opcodes.AALOAD)).// 1 -> 1 addInsn(new VarInsnNode(Opcodes.ASTORE, 2)).// 1 -> 1 addInsn(new VarInsnNode(Opcodes.ALOAD, 2)).// 1 -> 0| addInsn(new InsnNode(Opcodes.ICONST_1)).// 1 -> 0| addInsn(new InsnNode(Opcodes.DALOAD)).// 1 -> 0| 1 addInsn(new InsnNode(Opcodes.DRETURN));// 1 -> 1 // 14 -> 12 final LocalArrayValueInliner inliner = new LocalArrayValueInliner(); inliner.setInputObject(builder.toClass().instance()); // RUN STEP 1 final MethodNode method = builder.getMethod("getArrayValue"); assertEquals(9, method.instructions.size()); final InsnList optimized = inliner.optimize(method.instructions, method); // ASSERT STEP 1 assertEquals(7, optimized.size()); assertEquals(2.0, NodeHelper.getNumberValue(optimized.get(5)).doubleValue(), .0001); // RUN STEP 2 final InsnList optimized2 = inliner.optimize(method.instructions, method); // ASSERT STEP 2 assertEquals(7, optimized2.size()); }
From source file:de.tuberlin.uebb.jbop.optimizer.controlflow.ConstantIfInlinerTest.java
License:Open Source License
/** * Tests that constantIfInliner is working correctly. * /*from w w w .j a va 2s .c om*/ * Input is * * <pre> * if(!a) * ... * </pre> * * where a is false * * @throws JBOPClassException * the jBOP class exception */ @Test public void testConstantIfInlinerIFNE() throws JBOPClassException { // INIT final LabelNode label = new LabelNode(); builder.addInsn(new InsnNode(Opcodes.ICONST_0)).// addInsn(new JumpInsnNode(Opcodes.IFNE, label)).// addInsn(new InsnNode(Opcodes.NOP)).// addInsn(label).// addInsn(new InsnNode(Opcodes.RETURN)); // RUN assertEquals(5, method.instructions.size()); final InsnList optimized = constantIfInliner.optimize(method.instructions, method); // ASSERT assertEquals(3, optimized.size()); assertEquals(Opcodes.NOP, optimized.get(0).getOpcode()); }