Example usage for org.objectweb.asm MethodVisitor visitLineNumber

List of usage examples for org.objectweb.asm MethodVisitor visitLineNumber

Introduction

In this page you can find the example usage for org.objectweb.asm MethodVisitor visitLineNumber.

Prototype

public void visitLineNumber(final int line, final Label start) 

Source Link

Document

Visits a line number declaration.

Usage

From source file:org.jruby.runtime.callback.InvocationCallbackFactory.java

License:LGPL

@Deprecated
private MethodVisitor startDispatcher(ClassWriter cw) {
    MethodVisitor mv = cw
            .visitMethod(ACC_PUBLIC, "callMethod",
                    sig(IRubyObject.class,
                            params(ThreadContext.class, IRubyObject.class, RubyClass.class, Integer.TYPE,
                                    String.class, IRubyObject[].class, CallType.class, Block.class)),
                    null, null);/*from   w ww .  j a v  a2 s. co  m*/

    mv.visitCode();
    Label line = new Label();
    mv.visitLineNumber(0, line);
    mv.visitVarInsn(ALOAD, 2);
    mv.visitTypeInsn(CHECKCAST, typePath);
    return mv;
}

From source file:org.jruby.runtime.callback.InvocationCallbackFactory.java

License:LGPL

@Deprecated
private MethodVisitor startCallSFast(ClassWriter cw) {
    MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "call", FAST_CALL_SIG, null, null);

    mv.visitCode();/*from ww w  .  ja  v  a 2  s.  c  om*/
    Label line = new Label();
    mv.visitLineNumber(0, line);
    mv.visitVarInsn(ALOAD, 1);
    mv.visitTypeInsn(CHECKCAST, IRUB);
    return mv;
}

From source file:org.kantega.revoc.demo.HelloWorldGenerator.java

License:Apache License

public static void main(String[] args) throws ClassNotFoundException, NoSuchMethodException,
        InvocationTargetException, IllegalAccessException {

    ClassWriter cw = new ClassWriter(0);

    cw.visit(V1_6, ACC_PUBLIC + ACC_SUPER, "org/kantega/revoc/instrumentation/HelloWorld", null,
            "java/lang/Object", null);

    cw.visitSource("HelloWorld.java", null);

    {//from   w ww. ja v a  2 s .  c  om
        MethodVisitor mv = cw.visitMethod(ACC_PUBLIC + ACC_STATIC, "main", "([Ljava/lang/String;)V", null,
                null);
        mv.visitCode();
        Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(9, l0);
        mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
        mv.visitLdcInsn("Hello world");
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/String;)V");
        Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLineNumber(10, l1);
        mv.visitInsn(RETURN);
        Label l2 = new Label();
        mv.visitLabel(l2);
        mv.visitLocalVariable("args", "[Ljava/lang/String;", null, l0, l2, 0);
        mv.visitMaxs(2, 1);
        mv.visitEnd();
    }
    cw.visitEnd();

    byte[] bytes = cw.toByteArray();

    ClassUtils.invokeMainMethodUsingReflection("org.kantega.helloworld.HelloWorld", bytes);
}

From source file:org.lwjglx.autostack.Transformer.java

License:Open Source License

public byte[] transform(ClassLoader loader, final String className, Class<?> classBeingRedefined,
        ProtectionDomain protectionDomain, byte[] classfileBuffer) {
    try {/*from w  ww  . j a  va 2s .  c  o  m*/
        if (className == null || className.startsWith("java/") || className.startsWith("sun/")
                || className.startsWith("jdk/internal/") || className.startsWith("org/lwjgl/"))
            return null;
        for (String pack : packages)
            if (!className.startsWith(pack))
                return null;
        ClassReader cr = new ClassReader(classfileBuffer);
        final Map<String, Integer> stackMethods = new HashMap<String, Integer>();
        // Scan all methods that need auto-stack
        if (debugTransform)
            System.out.println("[autostack] scanning methods in class: " + className.replace('/', '.'));
        cr.accept(new ClassVisitor(ASM7) {
            public MethodVisitor visitMethod(final int access, final String methodName, final String methodDesc,
                    String signature, String[] exceptions) {
                if ((access & (ACC_NATIVE | ACC_ABSTRACT)) != 0) {
                    // Don't try to analyze native or abstract methods.
                    return null;
                }
                MethodVisitor mv = new MethodVisitor(ASM7) {
                    boolean mark, catches, notransform, nostackparam, forcestack;

                    public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
                        if ("Lorg/lwjglx/autostack/NoTransform;".equals(desc))
                            notransform = true;
                        else if ("Lorg/lwjglx/autostack/NoStackParam;".equals(desc))
                            nostackparam = true;
                        else if ("Lorg/lwjglx/autostack/UseNewStack;".equals(desc))
                            forcestack = true;
                        return null;
                    }

                    public void visitMethodInsn(int opcode, String owner, String name, String desc,
                            boolean itf) {
                        if (opcode == INVOKESTATIC && !itf && (owner.startsWith("org/lwjgl/")
                                && (name.equals("mallocStack") || name.equals("callocStack"))
                                || owner.equals(MEMORYSTACK) && (name.equals("stackGet")
                                        || name.equals("stackPop") || name.equals("stackPush")
                                        || name.startsWith("stackMalloc") || name.startsWith("stackCalloc")
                                        || name.startsWith("nstackMalloc") || name.startsWith("nstackCalloc")
                                        || name.equals("stackUTF8") || name.equals("stackASCII")
                                        || name.equals("stackUTF16") || name.equals("stackFloats")
                                        || name.equals("stackInts") || name.equals("stackBytes")
                                        || name.equals("stackShorts") || name.equals("stackPointers")
                                        || name.equals("stackLongs")))) {
                            mark = true;
                        }
                    }

                    public void visitTryCatchBlock(Label start, Label end, Label handler, String type) {
                        catches = true;
                    }

                    public void visitEnd() {
                        int flag = (access & ACC_PRIVATE) != 0 ? 8 : 0;
                        flag |= nostackparam ? 16 : 0;
                        if (mark || notransform || forcestack || nostackparam) {
                            if (notransform) {
                                flag |= 2;
                                if (debugTransform)
                                    System.out.println("[autostack]   will not transform method: "
                                            + className.replace('/', '.') + "." + methodName);
                            } else {
                                if (checkStack)
                                    flag |= 4;
                                flag |= catches ? 1 : 0;
                                if (debugTransform)
                                    System.out.println("[autostack]   will transform method: "
                                            + className.replace('/', '.') + "." + methodName);
                            }
                            stackMethods.put(methodName + methodDesc, Integer.valueOf(flag));
                        }
                    }
                };
                return mv;
            }
        }, ClassReader.SKIP_DEBUG | ClassReader.SKIP_FRAMES);
        if (stackMethods.isEmpty())
            return null;

        // Now, transform all such methods
        if (debugTransform)
            System.out.println("[autostack] transforming methods in class: " + className.replace('/', '.'));
        ClassWriter cw = new ClassWriter(cr, ClassWriter.COMPUTE_MAXS);
        cr.accept(new ClassVisitor(ASM7, cw) {
            boolean classDefaultNewStack = defaultNewStack;
            boolean classNoTransform;

            @Override
            public void visit(int version, int access, String name, String signature, String superName,
                    String[] interfaces) {
                cv.visit(version, access, name, signature, superName, interfaces);
                if (!checkStack) {
                    return;
                }
                /* Generate simple synthetic "compare stack pointers and throw if not equal" method */
                MethodVisitor mv = cv.visitMethod(ACC_PRIVATE | ACC_STATIC | ACC_SYNTHETIC, "$checkStack$",
                        "(II)V", null, new String[] { "java/lang/AssertionError" });
                {
                    mv.visitCode();
                    mv.visitVarInsn(ILOAD, 0);
                    mv.visitVarInsn(ILOAD, 1);
                    Label l0 = new Label();
                    mv.visitJumpInsn(IF_ICMPEQ, l0);
                    mv.visitTypeInsn(NEW, "java/lang/IllegalStateException");
                    mv.visitInsn(DUP);
                    mv.visitTypeInsn(NEW, "java/lang/StringBuilder");
                    mv.visitInsn(DUP);
                    mv.visitLdcInsn("Stack pointers differ: ");
                    mv.visitMethodInsn(INVOKESPECIAL, "java/lang/StringBuilder", "<init>",
                            "(Ljava/lang/String;)V", false);
                    mv.visitVarInsn(ILOAD, 0);
                    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
                            "(I)Ljava/lang/StringBuilder;", false);
                    mv.visitLdcInsn(" != ");
                    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
                            "(Ljava/lang/String;)Ljava/lang/StringBuilder;", false);
                    mv.visitVarInsn(ILOAD, 1);
                    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
                            "(I)Ljava/lang/StringBuilder;", false);
                    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "toString",
                            "()Ljava/lang/String;", false);
                    mv.visitMethodInsn(INVOKESPECIAL, "java/lang/IllegalStateException", "<init>",
                            "(Ljava/lang/String;)V", false);
                    mv.visitInsn(ATHROW);
                    mv.visitLabel(l0);
                    mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
                    mv.visitInsn(RETURN);
                    mv.visitMaxs(5, 2);
                    mv.visitEnd();
                }

                mv = cv.visitMethod(ACC_PRIVATE | ACC_STATIC | ACC_SYNTHETIC, "$checkStackWithThrowable$",
                        "(Ljava/lang/Throwable;II)Ljava/lang/Throwable;", null, null);
                {
                    mv.visitCode();
                    mv.visitVarInsn(ILOAD, 1);
                    mv.visitVarInsn(ILOAD, 2);
                    Label l0 = new Label();
                    mv.visitJumpInsn(IF_ICMPEQ, l0);
                    mv.visitTypeInsn(NEW, "java/lang/IllegalStateException");
                    mv.visitInsn(DUP);
                    mv.visitTypeInsn(NEW, "java/lang/StringBuilder");
                    mv.visitInsn(DUP);
                    mv.visitLdcInsn("Stack pointers differ: ");
                    mv.visitMethodInsn(INVOKESPECIAL, "java/lang/StringBuilder", "<init>",
                            "(Ljava/lang/String;)V", false);
                    mv.visitVarInsn(ILOAD, 1);
                    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
                            "(I)Ljava/lang/StringBuilder;", false);
                    mv.visitLdcInsn(" != ");
                    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
                            "(Ljava/lang/String;)Ljava/lang/StringBuilder;", false);
                    mv.visitVarInsn(ILOAD, 2);
                    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
                            "(I)Ljava/lang/StringBuilder;", false);
                    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "toString",
                            "()Ljava/lang/String;", false);
                    mv.visitVarInsn(ALOAD, 0);
                    mv.visitMethodInsn(INVOKESPECIAL, "java/lang/IllegalStateException", "<init>",
                            "(Ljava/lang/String;Ljava/lang/Throwable;)V", false);
                    mv.visitInsn(ARETURN);
                    mv.visitLabel(l0);
                    mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
                    mv.visitVarInsn(ALOAD, 0);
                    mv.visitInsn(ARETURN);
                    mv.visitMaxs(5, 3);
                    mv.visitEnd();
                }
            }

            public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
                if ("Lorg/lwjglx/autostack/UseCallerStack;".equals(desc)) {
                    if (debugTransform)
                        System.out.println(
                                "[autostack]   class declares to use caller stack for all methods, unless overridden by method");
                    classDefaultNewStack = false;
                    return null;
                } else if ("Lorg/lwjglx/autostack/UseNewStack;".equals(desc)) {
                    if (debugTransform)
                        System.out.println(
                                "[autostack]   class declares to use new stack for all methods, unless overridden by method");
                    classDefaultNewStack = true;
                    return null;
                } else if ("Lorg/lwjglx/autostack/NoTransform;".equals(desc)) {
                    if (debugTransform)
                        System.out.println("[autostack]   class declares to not transform any methods");
                    classNoTransform = true;
                    return null;
                }
                return cv.visitAnnotation(desc, visible);
            }

            public MethodVisitor visitMethod(final int access, final String name, final String desc,
                    String signature, String[] exceptions) {
                Integer info = stackMethods.get(name + desc);
                if (info == null)
                    return super.visitMethod(access, name, desc, signature, exceptions);
                boolean catches = (info.intValue() & 1) == 1;
                final boolean notransform = classNoTransform || (info.intValue() & 2) == 2;
                if (debugTransform && !notransform)
                    System.out.println(
                            "[autostack]   transform method: " + className.replace('/', '.') + "." + name);
                final boolean memoryStackParam = stackAsParameter && (access & ACC_PRIVATE) != 0
                        && (info.intValue() & 16) == 0;
                MethodVisitor mv;
                final Type[] paramTypes = Type.getArgumentTypes(desc);
                final boolean isStatic = (access & ACC_STATIC) != 0;
                final boolean isConstructor = "<init>".equals(name);
                if (memoryStackParam) {
                    if (debugTransform)
                        System.out.println(
                                "[autostack]     changing signature of method to add additional MemoryStack parameter");

                    // Add additional MemoryStack parameter to the method signature index of the local stays the same
                    int paramEndIndex = desc.indexOf(')');
                    String beforeDesc = desc.substring(0, paramEndIndex);
                    String afterDesc = desc.substring(paramEndIndex);
                    mv = super.visitMethod(access | ACC_SYNTHETIC, name,
                            beforeDesc + "L" + MEMORYSTACK + ";" + afterDesc, signature, exceptions);

                    // Re-introduce the original method which just delegates
                    if (debugTransform)
                        System.out.println("[autostack]     adding delegate method with original signature");
                    MethodVisitor omv = super.visitMethod(access, name, desc, signature, exceptions);
                    omv.visitCode();
                    int param = 0;
                    if (!isStatic) {
                        omv.visitVarInsn(ALOAD, 0);
                        param++;
                    }
                    for (int i = 0; i < paramTypes.length; i++) {
                        omv.visitVarInsn(paramTypes[i].getOpcode(ILOAD), param);
                        param += paramTypes[i].getSize();
                    }
                    omv.visitMethodInsn(INVOKESTATIC, MEMORYSTACK, "stackGet", "()L" + MEMORYSTACK + ";",
                            false);
                    boolean isPrivate = (access & ACC_PRIVATE) != 0;
                    int opcode = isStatic ? INVOKESTATIC : isPrivate ? INVOKESPECIAL : INVOKEVIRTUAL;
                    omv.visitMethodInsn(opcode, className, name,
                            beforeDesc + "L" + MEMORYSTACK + ";" + afterDesc, false);
                    Type retType = Type.getReturnType(desc);
                    omv.visitInsn(retType.getOpcode(IRETURN));
                    omv.visitMaxs(-1, -1);
                    omv.visitEnd();
                } else {
                    mv = super.visitMethod(access, name, desc, signature, exceptions);
                }
                if (catches)
                    mv = new TryCatchBlockSorter(mv, access, name, desc, signature, exceptions);
                mv = new MethodVisitor(ASM7, mv) {
                    Label tryLabel = new Label();
                    Label finallyLabel = new Label();
                    int lastLine = 0;
                    boolean newStack = classDefaultNewStack;
                    int stackVarIndex;
                    int stackPointerVarIndex;
                    int firstAdditionalLocal;
                    int additionalLocals;
                    Object[] replacedLocals;

                    public void visitInsn(int opcode) {
                        if (notransform) {
                            mv.visitInsn(opcode);
                            return;
                        }
                        if (opcode >= IRETURN && opcode <= RETURN && (newStack || checkStack)) {
                            if (debugRuntime && newStack && !checkStack) {
                                mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out",
                                        "Ljava/io/PrintStream;");
                                mv.visitLdcInsn("[autostack] restore stack pointer because of return at "
                                        + className.replace('/', '.') + "." + name + ":" + lastLine);
                                mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println",
                                        "(Ljava/lang/String;)V", false);
                            }
                            if (newStack && !checkStack) {
                                mv.visitVarInsn(ALOAD, stackVarIndex);
                                mv.visitVarInsn(ILOAD, stackPointerVarIndex);
                                mv.visitMethodInsn(INVOKEVIRTUAL, MEMORYSTACK, "setPointer", "(I)V", false);
                            } else if (checkStack) {
                                mv.visitVarInsn(ILOAD, stackPointerVarIndex);
                                mv.visitVarInsn(ALOAD, stackVarIndex);
                                mv.visitMethodInsn(INVOKEVIRTUAL, MEMORYSTACK, "getPointer", "()I", false);
                                mv.visitMethodInsn(INVOKESTATIC, className, "$checkStack$", "(II)V", false);
                            }
                        }
                        mv.visitInsn(opcode);
                    }

                    public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
                        if ("Lorg/lwjglx/autostack/UseCallerStack;".equals(desc)) {
                            if (!notransform) {
                                if (debugTransform)
                                    System.out.println("[autostack]     method declares to use caller stack");
                                newStack = false;
                            }
                            return null;
                        } else if ("Lorg/lwjglx/autostack/UseNewStack;".equals(desc)) {
                            if (!notransform) {
                                if (debugTransform)
                                    System.out.println("[autostack]     method declares to use new stack");
                                newStack = true;
                            }
                            return null;
                        } else if ("Lorg/lwjglx/autostack/NoTransform;".equals(desc)) {
                            return null;
                        } else if ("Lorg/lwjglx/autostack/NoStackParam;".equals(desc)) {
                            return null;
                        }
                        return mv.visitAnnotation(desc, visible);
                    }

                    public void visitVarInsn(int opcode, int var) {
                        if (notransform) {
                            mv.visitVarInsn(opcode, var);
                            return;
                        }
                        if (var >= firstAdditionalLocal)
                            var += additionalLocals;
                        mv.visitVarInsn(opcode, var);
                    }

                    public void visitIincInsn(int var, int increment) {
                        if (notransform) {
                            mv.visitIincInsn(var, increment);
                            return;
                        }
                        if (var >= firstAdditionalLocal)
                            var += additionalLocals;
                        mv.visitIincInsn(var, increment);
                    }

                    public void visitFrame(int type, int nLocal, Object[] local, int nStack, Object[] stack) {
                        if (notransform) {
                            mv.visitFrame(type, nLocal, local, nStack, stack);
                            return;
                        }
                        if (type == F_FULL) {
                            int noThis = isStatic ? 0 : 1;
                            Object[] locals = new Object[local.length + additionalLocals];
                            if (!isStatic)
                                locals[0] = local[0];
                            int replacementLength = replacedLocals.length;
                            System.arraycopy(replacedLocals, noThis, locals, noThis,
                                    replacementLength - noThis);
                            int len = locals.length - replacementLength;
                            System.arraycopy(local, replacementLength - additionalLocals, locals,
                                    replacementLength, len);
                            mv.visitFrame(type, nLocal + additionalLocals, locals, nStack, stack);
                        } else
                            mv.visitFrame(type, nLocal, local, nStack, stack);
                    }

                    public void visitLocalVariable(String name, String desc, String signature, Label start,
                            Label end, int index) {
                        if (notransform) {
                            mv.visitLocalVariable(name, desc, signature, start, end, index);
                            return;
                        }
                        if (index >= firstAdditionalLocal)
                            index += additionalLocals;
                        mv.visitLocalVariable(name, desc, signature, start, end, index);
                    }

                    private boolean doesNotTakeStackItself(String desc) {
                        return desc.lastIndexOf("L" + MEMORYSTACK + ";)") == -1;
                    }

                    public void visitMethodInsn(int opcode, String owner, String name, String desc,
                            boolean itf) {
                        String completeName = name + desc;
                        Integer info = stackMethods.get(completeName);
                        if (opcode != INVOKESTATIC || notransform) {
                            mv.visitMethodInsn(opcode, owner, name, desc, itf);
                            return;
                        }
                        if (stackAsParameter && info != null && (info.intValue() & 8) != 0
                                && (info.intValue() & 16) == 0) {
                            /* Rewrite invocation to have additional MemoryStack parameter */
                            if (debugTransform)
                                System.out.println(
                                        "[autostack]     rewrite invocation of " + owner.replace('/', '.') + "."
                                                + name + " at line " + lastLine + " --> "
                                                + owner.replace('/', '.') + "." + name + "(..., MemoryStack)");
                            int paramEndIndex = desc.indexOf(')');
                            String beforeDesc = desc.substring(0, paramEndIndex);
                            String afterDesc = desc.substring(paramEndIndex);
                            mv.visitVarInsn(ALOAD, stackVarIndex);
                            mv.visitMethodInsn(opcode, owner, name,
                                    beforeDesc + "L" + MEMORYSTACK + ";" + afterDesc, itf);
                            return;
                        }
                        if (owner.startsWith("org/lwjgl/")
                                && (name.equals("mallocStack") || name.equals("callocStack"))
                                && doesNotTakeStackItself(desc)) {
                            if (debugTransform)
                                System.out.println(
                                        "[autostack]     rewrite invocation of " + owner.replace('/', '.') + "."
                                                + name + " at line " + lastLine + " --> aload " + stackVarIndex
                                                + "; invokestatic " + owner.replace('/', '.') + "." + name);
                            mv.visitVarInsn(ALOAD, stackVarIndex);
                            int paramEndIndex = desc.indexOf(')');
                            String beforeDesc = desc.substring(0, paramEndIndex);
                            String afterDesc = desc.substring(paramEndIndex);
                            mv.visitMethodInsn(opcode, owner, name,
                                    beforeDesc + "L" + MEMORYSTACK + ";" + afterDesc, false);
                        } else if (owner.equals(MEMORYSTACK) && name.equals("stackGet")) {
                            if (debugTransform)
                                System.out.println("[autostack]     rewrite invocation of "
                                        + owner.replace('/', '.') + "." + name + " at line " + lastLine
                                        + " --> aload " + stackVarIndex);
                            mv.visitVarInsn(ALOAD, stackVarIndex);
                        } else if (owner.equals(MEMORYSTACK)
                                && (name.equals("stackPush") || name.equals("stackPop"))) {
                            String newName = "p" + name.substring(6);
                            if (debugTransform)
                                System.out.println("[autostack]     rewrite invocation of "
                                        + owner.replace('/', '.') + "." + name + " at line " + lastLine
                                        + " --> aload " + stackVarIndex + "; invokevirtual "
                                        + MEMORYSTACK.replace('/', '.') + "." + newName);
                            mv.visitVarInsn(ALOAD, stackVarIndex);
                            mv.visitMethodInsn(INVOKEVIRTUAL, MEMORYSTACK, newName, desc, itf);
                        } else if (owner.equals(MEMORYSTACK)
                                && (name.startsWith("stackMalloc") || name.startsWith("stackCalloc"))) {
                            String newName = name.substring(5, 6).toLowerCase() + name.substring(6);
                            if (debugTransform)
                                System.out.println("[autostack]     rewrite invocation of "
                                        + owner.replace('/', '.') + "." + name + " at line " + lastLine
                                        + " --> aload " + stackVarIndex + "; invokevirtual "
                                        + MEMORYSTACK.replace('/', '.') + "." + newName);
                            mv.visitVarInsn(ALOAD, stackVarIndex);
                            mv.visitInsn(SWAP);
                            mv.visitMethodInsn(INVOKEVIRTUAL, MEMORYSTACK, newName, desc, itf);
                        } else if (owner.equals(MEMORYSTACK)
                                && (name.startsWith("nstackMalloc") || name.startsWith("nstackCalloc"))) {
                            String newName = "n" + name.substring(6, 7).toLowerCase() + name.substring(7);
                            if (debugTransform)
                                System.out.println("[autostack]     rewrite invocation of "
                                        + owner.replace('/', '.') + "." + name + " at line " + lastLine
                                        + " --> aload " + stackVarIndex + "; invokevirtual "
                                        + MEMORYSTACK.replace('/', '.') + "." + newName);
                            mv.visitVarInsn(ALOAD, stackVarIndex);
                            if ("(I)J".equals(desc)) {
                                mv.visitInsn(SWAP);
                            } else {
                                // (II)J
                                mv.visitInsn(DUP_X2);
                                mv.visitInsn(POP);
                            }
                            mv.visitMethodInsn(INVOKEVIRTUAL, MEMORYSTACK, newName, desc, itf);
                        } else if (owner.equals(MEMORYSTACK) && (name.equals("stackASCII")
                                || name.equals("stackUTF8") || name.equals("stackUTF16"))) {
                            String newName = name.substring(5);
                            boolean withBoolean = desc.startsWith("(Ljava/lang/CharSequence;Z");
                            if (debugTransform)
                                System.out.println("[autostack]     rewrite invocation of "
                                        + owner.replace('/', '.') + "." + name + " at line " + lastLine
                                        + " --> aload " + stackVarIndex + "; invokevirtual "
                                        + MEMORYSTACK.replace('/', '.') + "." + newName);
                            mv.visitVarInsn(ALOAD, stackVarIndex);
                            if (withBoolean) {
                                mv.visitInsn(DUP_X2);
                                mv.visitInsn(POP);
                            } else {
                                mv.visitInsn(SWAP);
                            }
                            mv.visitMethodInsn(INVOKEVIRTUAL, MEMORYSTACK, newName, desc, itf);
                        } else if (owner.equals(MEMORYSTACK)
                                && (name.equals("stackFloats") || name.equals("stackInts")
                                        || name.equals("stackBytes") || name.equals("stackShorts")
                                        || name.equals("stackPointers")
                                                && (desc.startsWith("([Lorg/lwjgl/system/Pointer;")
                                                        || desc.startsWith("(Lorg/lwjgl/system/Pointer;")))) {
                            String newName = name.substring(5, 6).toLowerCase() + name.substring(6);
                            Type[] argTypes = Type.getArgumentTypes(desc);
                            if (argTypes.length == 1 && argTypes[0].getSort() == Type.ARRAY) {
                                if (debugTransform)
                                    System.out.println("[autostack]     rewrite invocation of "
                                            + owner.replace('/', '.') + "." + name + " at line " + lastLine
                                            + " --> aload " + stackVarIndex + "; invokevirtual "
                                            + MEMORYSTACK.replace('/', '.') + "." + newName);
                                mv.visitVarInsn(ALOAD, stackVarIndex);
                                mv.visitInsn(SWAP);
                                mv.visitMethodInsn(INVOKEVIRTUAL, MEMORYSTACK, newName, desc, itf);
                            } else if (argTypes.length == 1) {
                                if (debugTransform)
                                    System.out.println("[autostack]     rewrite invocation of "
                                            + owner.replace('/', '.') + "." + name + " at line " + lastLine
                                            + " --> aload " + stackVarIndex + "; invokevirtual "
                                            + MEMORYSTACK.replace('/', '.') + "." + newName);
                                mv.visitVarInsn(ALOAD, stackVarIndex);
                                mv.visitInsn(SWAP);
                                mv.visitMethodInsn(INVOKEVIRTUAL, MEMORYSTACK, newName, desc, itf);
                            } else if (argTypes.length == 2) {
                                if (debugTransform)
                                    System.out.println("[autostack]     rewrite invocation of "
                                            + owner.replace('/', '.') + "." + name + " at line " + lastLine
                                            + " --> aload " + stackVarIndex + "; invokevirtual "
                                            + MEMORYSTACK.replace('/', '.') + "." + newName);
                                mv.visitVarInsn(ALOAD, stackVarIndex);
                                mv.visitInsn(DUP_X2);
                                mv.visitInsn(POP);
                                mv.visitMethodInsn(INVOKEVIRTUAL, MEMORYSTACK, newName, desc, itf);
                            } else if (argTypes.length == 3) {
                                if (debugTransform)
                                    System.out.println("[autostack]     rewrite invocation of "
                                            + owner.replace('/', '.') + "." + name + " at line " + lastLine
                                            + " --> aload " + stackVarIndex + "; invokevirtual "
                                            + MEMORYSTACK.replace('/', '.') + "." + newName);
                                mv.visitVarInsn(ALOAD, stackVarIndex);
                                mv.visitInsn(DUP2_X2);
                                mv.visitInsn(POP);
                                mv.visitMethodInsn(INVOKEVIRTUAL, MEMORYSTACK, newName, desc, itf);
                                mv.visitInsn(SWAP);
                                mv.visitInsn(POP);
                            } else {
                                if (debugTransform)
                                    System.out.println("[autostack]     failed to rewrite invocation of "
                                            + owner.replace('/', '.') + "." + name + " at line " + lastLine
                                            + ". Not yet implemented.");
                                /* Give up. Not possible without an additional local */
                                mv.visitMethodInsn(INVOKESTATIC, MEMORYSTACK, name, desc, itf);
                            }
                        } else if (owner.equals(MEMORYSTACK) && name.equals("stackLongs")) {
                            String newName = name.substring(5, 6).toLowerCase() + name.substring(6);
                            Type[] argTypes = Type.getArgumentTypes(desc);
                            if (argTypes.length == 1 && argTypes[0].getSort() == Type.ARRAY) {
                                if (debugTransform)
                                    System.out.println("[autostack]     rewrite invocation of "
                                            + owner.replace('/', '.') + "." + name + " at line " + lastLine
                                            + " --> aload " + stackVarIndex + "; invokevirtual "
                                            + MEMORYSTACK.replace('/', '.') + "." + newName);
                                mv.visitVarInsn(ALOAD, stackVarIndex);
                                mv.visitInsn(SWAP);
                                mv.visitMethodInsn(INVOKEVIRTUAL, MEMORYSTACK, newName, desc, itf);
                            } else if (argTypes.length == 1) {
                                if (debugTransform)
                                    System.out.println("[autostack]     rewrite invocation of "
                                            + owner.replace('/', '.') + "." + name + " at line " + lastLine
                                            + " --> aload " + stackVarIndex + "; invokevirtual "
                                            + MEMORYSTACK.replace('/', '.') + "." + newName);
                                mv.visitVarInsn(ALOAD, stackVarIndex);
                                mv.visitInsn(DUP_X2);
                                mv.visitInsn(POP);
                                mv.visitMethodInsn(INVOKEVIRTUAL, MEMORYSTACK, newName, desc, itf);
                            } else {
                                if (debugTransform)
                                    System.out.println("[autostack]     failed to rewrite invocation of "
                                            + owner.replace('/', '.') + "." + name + " at line " + lastLine
                                            + ". Not yet implemented.");
                                /* Give up. Not possible without an additional local */
                                mv.visitMethodInsn(INVOKESTATIC, MEMORYSTACK, name, desc, itf);
                            }
                        } else {
                            mv.visitMethodInsn(opcode, owner, name, desc, itf);
                        }
                    }

                    public void visitLineNumber(int line, Label start) {
                        mv.visitLineNumber(line, start);
                        lastLine = line;
                    }

                    public void visitCode() {
                        if (notransform) {
                            mv.visitCode();
                            return;
                        }
                        additionalLocals = newStack || checkStack ? 2 : 1;
                        replacedLocals = new Object[paramTypes.length + additionalLocals + (isStatic ? 0 : 1)];
                        if (!newStack && !checkStack) {
                            replacedLocals[replacedLocals.length - 1] = MEMORYSTACK;
                        } else {
                            replacedLocals[replacedLocals.length - 2] = MEMORYSTACK;
                            replacedLocals[replacedLocals.length - 1] = INTEGER;
                        }
                        if (!isStatic)
                            replacedLocals[0] = isConstructor ? TOP : className;
                        int var = isStatic ? 0 : 1;
                        for (int t = 0, i = var; t < paramTypes.length; t++, i++) {
                            Type type = paramTypes[t];
                            var += type.getSize();
                            switch (type.getSort()) {
                            case Type.INT:
                            case Type.BYTE:
                            case Type.BOOLEAN:
                            case Type.SHORT:
                            case Type.CHAR:
                                replacedLocals[i] = INTEGER;
                                break;
                            case Type.LONG:
                                replacedLocals[i] = LONG;
                                break;
                            case Type.FLOAT:
                                replacedLocals[i] = FLOAT;
                                break;
                            case Type.DOUBLE:
                                replacedLocals[i] = DOUBLE;
                                break;
                            case Type.OBJECT:
                            case Type.ARRAY:
                                replacedLocals[i] = type.getInternalName();
                                break;
                            default:
                                throw new AssertionError("Unhandled parameter type: " + type);
                            }
                        }
                        firstAdditionalLocal = var;
                        stackVarIndex = var;
                        stackPointerVarIndex = var + 1;
                        mv.visitCode();
                        if (newStack && !checkStack || checkStack) {
                            if (!memoryStackParam) {
                                mv.visitMethodInsn(INVOKESTATIC, MEMORYSTACK, "stackGet",
                                        "()L" + MEMORYSTACK + ";", false);
                                mv.visitInsn(DUP);
                                mv.visitVarInsn(ASTORE, stackVarIndex);
                            } else {
                                mv.visitVarInsn(ALOAD, stackVarIndex);
                            }
                            mv.visitMethodInsn(INVOKEVIRTUAL, MEMORYSTACK, "getPointer", "()I", false);
                            mv.visitVarInsn(ISTORE, stackPointerVarIndex);
                            if (debugRuntime && newStack && !checkStack) {
                                mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out",
                                        "Ljava/io/PrintStream;");
                                mv.visitLdcInsn("[autostack] save stack pointer [");
                                mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "print",
                                        "(Ljava/lang/String;)V", false);
                                mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out",
                                        "Ljava/io/PrintStream;");
                                mv.visitVarInsn(ILOAD, stackPointerVarIndex);
                                mv.visitMethodInsn(INVOKESTATIC, "java/lang/Integer", "toString",
                                        "(I)Ljava/lang/String;", false);
                                mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "print",
                                        "(Ljava/lang/String;)V", false);
                                mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out",
                                        "Ljava/io/PrintStream;");
                                mv.visitLdcInsn("] at begin of " + className.replace('/', '.') + "." + name);
                                mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println",
                                        "(Ljava/lang/String;)V", false);
                            }
                            mv.visitLabel(tryLabel);
                            if (!memoryStackParam)
                                mv.visitFrame(F_APPEND, 2, new Object[] { MEMORYSTACK, INTEGER }, 0, null);
                            else
                                mv.visitFrame(F_APPEND, 1, new Object[] { INTEGER }, 0, null);
                        } else if (!newStack && !checkStack) {
                            if (!memoryStackParam) {
                                mv.visitMethodInsn(INVOKESTATIC, MEMORYSTACK, "stackGet",
                                        "()L" + MEMORYSTACK + ";", false);
                                mv.visitVarInsn(ASTORE, stackVarIndex);
                            }
                            if (debugRuntime) {
                                mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out",
                                        "Ljava/io/PrintStream;");
                                mv.visitLdcInsn("[autostack] current stack pointer is [");
                                mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "print",
                                        "(Ljava/lang/String;)V", false);
                                mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out",
                                        "Ljava/io/PrintStream;");
                                mv.visitVarInsn(ALOAD, stackVarIndex);
                                mv.visitMethodInsn(INVOKEVIRTUAL, MEMORYSTACK, "getPointer", "()I", false);
                                mv.visitMethodInsn(INVOKESTATIC, "java/lang/Integer", "toString",
                                        "(I)Ljava/lang/String;", false);
                                mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "print",
                                        "(Ljava/lang/String;)V", false);
                                mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out",
                                        "Ljava/io/PrintStream;");
                                mv.visitLdcInsn("] at begin of " + className.replace('/', '.') + "." + name);
                                mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println",
                                        "(Ljava/lang/String;)V", false);
                            }
                            mv.visitLabel(tryLabel);
                            if (!memoryStackParam)
                                mv.visitFrame(F_APPEND, 1, new Object[] { MEMORYSTACK }, 0, null);
                        }
                    }

                    public void visitMaxs(int maxStack, int maxLocals) {
                        if (notransform) {
                            mv.visitMaxs(maxStack, maxLocals);
                            return;
                        }
                        if (newStack && !checkStack || checkStack) {
                            mv.visitLabel(finallyLabel);
                            mv.visitFrame(F_FULL, replacedLocals.length, replacedLocals, 1,
                                    new Object[] { "java/lang/Throwable" });
                            mv.visitTryCatchBlock(tryLabel, finallyLabel, finallyLabel, null);
                            if (debugRuntime && newStack && !checkStack) {
                                mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out",
                                        "Ljava/io/PrintStream;");
                                mv.visitLdcInsn("[autostack] restore stack pointer because of throw [");
                                mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "print",
                                        "(Ljava/lang/String;)V", false);
                                mv.visitInsn(DUP);
                                mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out",
                                        "Ljava/io/PrintStream;");
                                mv.visitInsn(SWAP);
                                mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Object", "toString",
                                        "()Ljava/lang/String;", false);
                                mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "print",
                                        "(Ljava/lang/String;)V", false);
                                mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out",
                                        "Ljava/io/PrintStream;");
                                mv.visitLdcInsn(
                                        "] at " + className.replace('/', '.') + "." + name + ":" + lastLine);
                                mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println",
                                        "(Ljava/lang/String;)V", false);
                            }
                            if (newStack && !checkStack) {
                                mv.visitVarInsn(ALOAD, stackVarIndex);
                                mv.visitVarInsn(ILOAD, stackPointerVarIndex);
                                mv.visitMethodInsn(INVOKEVIRTUAL, MEMORYSTACK, "setPointer", "(I)V", false);
                            }
                            if (checkStack) {
                                mv.visitVarInsn(ILOAD, stackPointerVarIndex);
                                mv.visitVarInsn(ALOAD, stackVarIndex);
                                mv.visitMethodInsn(INVOKEVIRTUAL, MEMORYSTACK, "getPointer", "()I", false);
                                mv.visitMethodInsn(INVOKESTATIC, className, "$checkStackWithThrowable$",
                                        "(Ljava/lang/Throwable;II)Ljava/lang/Throwable;", false);
                            }
                            mv.visitInsn(ATHROW);
                        }
                        mv.visitMaxs(-1, maxLocals + additionalLocals);
                    }
                };
                return mv;
            }
        }, 0);
        byte[] arr = cw.toByteArray();
        if (trace) {
            cr = new ClassReader(arr);
            cr.accept(new TraceClassVisitor(new PrintWriter(System.out)), 0);
        }
        return arr;
    } catch (Throwable t) {
        t.printStackTrace();
        throw new RuntimeException(t);
    }
}

From source file:org.mbte.groovypp.compiler.asm.VisitLineNumber.java

License:Apache License

public void visit(MethodVisitor mv) {
    mv.visitLineNumber(line, label);
}

From source file:org.mbte.groovypp.compiler.StaticCompiler.java

License:Apache License

public void visitSwitch(SwitchStatement statement) {
    visitStatement(statement);//from w w w . j ava 2 s  .  c o m

    List caseStatements = statement.getCaseStatements();

    BytecodeExpr cond = (BytecodeExpr) transform(statement.getExpression());
    cond.visit(mv);

    if (statement.getExpression() instanceof VariableExpression) {
        final VariableExpression ve = (VariableExpression) statement.getExpression();

        if (!ve.getName().equals("this")) {
            for (Iterator iter = caseStatements.iterator(); iter.hasNext();) {
                CaseStatement caseStatement = (CaseStatement) iter.next();
                final Expression option = caseStatement.getExpression();
                if (option instanceof ClassExpression && !ve.getType().equals(ClassHelper.CLASS_Type)) {
                    final BlockStatement newCode = new BlockStatement();
                    final VariableExpression newVar = new VariableExpression(ve.getName(), option.getType());
                    final DeclarationExpression newVarDecl = new DeclarationExpression(newVar,
                            Token.newSymbol(Types.EQUAL, -1, -1), ve);
                    newVarDecl.setSourcePosition(caseStatement);
                    newCode.addStatement(new ExpressionStatement(newVarDecl));
                    newCode.addStatement(caseStatement.getCode());
                    caseStatement.setCode(newCode);
                    newCode.visit(new ClassCodeExpressionTransformer() {
                        @Override
                        public Expression transform(Expression exp) {
                            if (exp instanceof VariableExpression) {
                                VariableExpression vexp = (VariableExpression) exp;
                                if (vexp.getName().equals(ve.getName())) {
                                    vexp.setAccessedVariable(newVar);
                                }
                            }
                            return super.transform(exp);
                        }

                        protected SourceUnit getSourceUnit() {
                            return su;
                        }
                    });
                }
            }
        }
    }

    // switch does not have a continue label. use its parent's for continue
    Label breakLabel = compileStack.pushSwitch();

    int switchVariableIndex = compileStack.defineTemporaryVariable("switch", cond.getType(), true);

    int caseCount = caseStatements.size();
    Label[] codeLabels = new Label[caseCount];
    Label[] condLabels = new Label[caseCount + 1];
    int i;
    for (i = 0; i < caseCount; i++) {
        codeLabels[i] = new Label();
        condLabels[i] = new Label();
    }

    Label defaultLabel = new Label();

    i = 0;
    for (Iterator iter = caseStatements.iterator(); iter.hasNext(); i++) {
        CaseStatement caseStatement = (CaseStatement) iter.next();

        mv.visitLabel(condLabels[i]);

        visitStatement(caseStatement);

        BytecodeExpr.load(cond.getType(), switchVariableIndex, mv);
        BytecodeExpr option = (BytecodeExpr) transformToGround(caseStatement.getExpression());

        if (ClassHelper.isPrimitiveType(option.getType()) && ClassHelper.isPrimitiveType(cond.getType())) {
            option.visit(mv);
            final BytecodeExpr caseValue = new BytecodeExpr(option, option.getType()) {
                protected void compile(MethodVisitor mv) {
                }
            };

            final BytecodeExpr switchValue = new BytecodeExpr(cond, cond.getType()) {
                protected void compile(MethodVisitor mv) {
                }
            };
            BinaryExpression eq = new BinaryExpression(caseValue, Token.newSymbol(Types.COMPARE_EQUAL, -1, -1),
                    switchValue);
            eq.setSourcePosition(caseValue);
            transformLogical(eq, codeLabels[i], true).visit(mv);
        } else {
            if (ClassHelper.isPrimitiveType(cond.getType())) {
                if (caseStatement.getExpression() instanceof ClassExpression) {
                    addError(
                            "Primitive type " + cond.getType().getName() + " con not be instance of "
                                    + ((ClassExpression) caseStatement.getExpression()).getType().getName(),
                            caseStatement.getExpression());
                    continue;
                }

                BytecodeExpr.box(cond.getType(), mv);

                option.visit(mv);
                BytecodeExpr.box(option.getType(), mv);

                Label next = i == caseCount - 1 ? defaultLabel : condLabels[i + 1];

                Label notNull = new Label();
                mv.visitInsn(DUP);
                mv.visitJumpInsn(IFNONNULL, notNull);
                mv.visitJumpInsn(IF_ACMPEQ, codeLabels[i]);
                mv.visitJumpInsn(GOTO, next);

                mv.visitLabel(notNull);

                final BytecodeExpr caseValue = new BytecodeExpr(option, TypeUtil.wrapSafely(option.getType())) {
                    protected void compile(MethodVisitor mv) {
                    }
                };

                final BytecodeExpr switchValue = new BytecodeExpr(cond, TypeUtil.wrapSafely(cond.getType())) {
                    protected void compile(MethodVisitor mv) {
                        mv.visitInsn(SWAP);
                    }
                };
                MethodCallExpression exp = new MethodCallExpression(caseValue, "isCase",
                        new ArgumentListExpression(switchValue));
                exp.setSourcePosition(caseValue);
                transformLogical(exp, codeLabels[i], true).visit(mv);
            } else {
                if (caseStatement.getExpression() instanceof ClassExpression
                        && !cond.getType().equals(ClassHelper.CLASS_Type)) {
                    BytecodeExpr.box(cond.getType(), mv);
                    mv.visitTypeInsn(INSTANCEOF,
                            BytecodeHelper.getClassInternalName(caseStatement.getExpression().getType()));
                    mv.visitJumpInsn(IFNE, codeLabels[i]);
                } else {
                    option.visit(mv);
                    BytecodeExpr.box(option.getType(), mv);

                    Label next = i == caseCount - 1 ? defaultLabel : condLabels[i + 1];

                    Label notNull = new Label();
                    mv.visitInsn(DUP);
                    mv.visitJumpInsn(IFNONNULL, notNull);
                    mv.visitJumpInsn(IF_ACMPEQ, codeLabels[i]);
                    mv.visitJumpInsn(GOTO, next);

                    mv.visitLabel(notNull);

                    final BytecodeExpr caseValue = new BytecodeExpr(option,
                            TypeUtil.wrapSafely(option.getType())) {
                        protected void compile(MethodVisitor mv) {
                        }
                    };

                    final BytecodeExpr switchValue = new BytecodeExpr(cond,
                            TypeUtil.wrapSafely(cond.getType())) {
                        protected void compile(MethodVisitor mv) {
                            mv.visitInsn(SWAP);
                        }
                    };
                    MethodCallExpression exp = new MethodCallExpression(caseValue, "isCase",
                            new ArgumentListExpression(switchValue));
                    exp.setSourcePosition(caseValue);
                    transformLogical(exp, codeLabels[i], true).visit(mv);
                }
            }
        }
    }

    mv.visitJumpInsn(GOTO, defaultLabel);

    i = 0;
    for (Iterator iter = caseStatements.iterator(); iter.hasNext(); i++) {
        CaseStatement caseStatement = (CaseStatement) iter.next();
        visitStatement(caseStatement);
        mv.visitLabel(codeLabels[i]);
        caseStatement.getCode().visit(this);
    }

    mv.visitLabel(defaultLabel);
    statement.getDefaultStatement().visit(this);

    mv.visitLineNumber(statement.getLastLineNumber(), new Label());
    mv.visitLabel(breakLabel);

    compileStack.pop();
}

From source file:org.moe.natj.processor.cxx.BCGen.java

License:Apache License

/**
 * Creates a Java bridge method for specialized interface methods.
 *
 * @param owningClass   Owning class//from www.  j  ava2s.c  o  m
 * @param writer        Class writer
 * @param node          Method node
 * @param oldMethodType Old method type
 * @param newMethodType New method type
 * @param isInInterface Is generating bridge method into an interface
 */
public static void createInterfaceBridgeMethod(String owningClass, ClassWriter writer, MethodNode node,
        Type oldMethodType, Type newMethodType, boolean isInInterface) {
    int brAccess = node.access & ~ACC_ABSTRACT | ACC_BRIDGE | ACC_SYNTHETIC;
    final String[] exceptions = (String[]) node.exceptions.toArray(new String[node.exceptions.size()]);
    final MethodVisitor mv = writer.visitMethod(brAccess, node.name, node.desc, null, exceptions);
    mv.visitCode();
    final Label start = new Label();
    mv.visitLabel(start);
    mv.visitLineNumber(1, start);

    // Load this
    mv.visitVarInsn(ALOAD, 0);

    // Load and check parameters
    Type[] oldArgumentTypes = oldMethodType.getArgumentTypes();
    Type[] newArgumentTypes = newMethodType.getArgumentTypes();
    int localIndex = 1;
    for (int i = 0, length = oldArgumentTypes.length; i < length; i++) {
        Type oldType = oldArgumentTypes[i];
        Type newType = newArgumentTypes[i];
        if (oldType.getSort() != newType.getSort()) {
            throw new IllegalStateException("Conflicting parameter types for specialized method");
        }
        localIndex += BCGen.loadType(mv, oldType, localIndex);
        if (!oldType.equals(newType)) {
            mv.visitTypeInsn(CHECKCAST, newType.getInternalName());
        }
    }

    // Invoke bridged method
    final int opcode = isInInterface ? INVOKEINTERFACE : INVOKEVIRTUAL;
    mv.visitMethodInsn(opcode, owningClass, node.name, newMethodType.getDescriptor(), isInInterface);

    // Return and close
    BCGen.returnType(mv, newMethodType.getReturnType());
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}

From source file:org.simantics.databoard.binding.classfactory.AsmTypeClassFactory.java

License:Open Source License

public Class<?> createRecordClass(RecordType type) throws BindingConstructionException {
    ClassWriter cw = new ClassWriter(0);
    AnnotationVisitor av0;//  w  w  w .j  a  v  a 2  s  .  co m

    // Create class name
    SignatureVisitor sv = new SignatureVisitor();
    type.accept(sv, null);
    String sig = sv.sb.toString() + "_" + Integer.toHexString(sv.hashcode);

    String hash = Integer.toHexString(type.hashCode());
    String className = "org.simantics.databoard.RecordType_" + sig;
    String classSig = "org/simantics/databoard/RecordType_" + sig;
    Class<?> superClass = makeBean ? Bean.class : Object.class;
    String superType = AsmBindingClassLoader.toClassCanonicalName(superClass);

    cw.visit(V1_6, ACC_PUBLIC + ACC_SUPER, classSig, null, superType, null);

    if (type.isReferable()) {
        av0 = cw.visitAnnotation(AsmBindingClassLoader.toTypeDescriptor(Referable.class), true);
        av0.visitEnd();
    }

    for (int i = 0; i < type.getComponentCount(); i++) {
        Component c = type.getComponent(i);
        Datatype fieldType = c.type;
        boolean isOptional = fieldType instanceof OptionalType;
        boolean isIdentifier = type.isIdentifier(i);
        if (isOptional) {
            fieldType = ((OptionalType) fieldType).componentType;
        }
        //         boolean isArray = fieldType instanceof ArrayType;
        //         if ( isArray ) {
        //            fieldType = ((ArrayType) fieldType).componentType;
        //         }
        String fieldName = toJavaFieldName(c.name);
        BindingRequest br = classFactory.getClass(fieldType);

        FieldVisitor fv = cw.visitField(ACC_PUBLIC, fieldName, br.signature,
                br.descriptor.equals(br.signature) ? null : br.descriptor, null);

        // Visit annotations
        if (br.annotations != null && br.annotations.length > 0) {
            for (Annotation a : br.annotations) {

                if (a instanceof Arguments) {
                    Arguments arg = (Arguments) a;
                    av0 = fv.visitAnnotation(AsmBindingClassLoader.toTypeDescriptor(Arguments.class), true);
                    AnnotationVisitor av1 = av0.visitArray("value");
                    for (Class<?> clzz : arg.value()) {
                        av1.visit(null, Type.getType(AsmBindingClassLoader.toTypeDescriptor(clzz)));
                    }
                    av1.visitEnd();
                    av0.visitEnd();
                }

                isIdentifier |= a instanceof Identifier;

                if (a instanceof Length) {
                    Length arg = (Length) a;
                    av0 = fv.visitAnnotation(AsmBindingClassLoader.toTypeDescriptor(Length.class), true);
                    AnnotationVisitor av1 = av0.visitArray("value");
                    for (String s : arg.value())
                        av1.visit(null, s);
                    av1.visitEnd();
                    av0.visitEnd();
                }

                if (a instanceof MIMEType) {
                    MIMEType arg = (MIMEType) a;
                    av0 = fv.visitAnnotation(AsmBindingClassLoader.toTypeDescriptor(MIMEType.class), true);
                    av0.visit("value", arg.value());
                    av0.visitEnd();
                }

                if (a instanceof Name) {
                    Name arg = (Name) a;
                    av0 = fv.visitAnnotation(AsmBindingClassLoader.toTypeDescriptor(Name.class), true);
                    av0.visit("value", arg.value());
                    av0.visitEnd();
                }

                isOptional |= a instanceof Optional;

                if (a instanceof org.simantics.databoard.annotations.Pattern) {
                    org.simantics.databoard.annotations.Pattern arg = (org.simantics.databoard.annotations.Pattern) a;
                    av0 = fv.visitAnnotation(AsmBindingClassLoader
                            .toTypeDescriptor(org.simantics.databoard.annotations.Pattern.class), true);
                    av0.visit("value", arg.value());
                    av0.visitEnd();
                }

                if (a instanceof Range) {
                    Range arg = (Range) a;
                    av0 = fv.visitAnnotation(AsmBindingClassLoader.toTypeDescriptor(Range.class), true);
                    av0.visit("value", arg.value());
                    av0.visitEnd();
                }

                if (a instanceof Unit) {
                    Unit arg = (Unit) a;
                    av0 = fv.visitAnnotation(AsmBindingClassLoader.toTypeDescriptor(Unit.class), true);
                    av0.visit("value", arg.value());
                    av0.visitEnd();
                }
            }
        }

        if (isIdentifier) {
            av0 = fv.visitAnnotation(AsmBindingClassLoader.toTypeDescriptor(Identifier.class), true);
            av0.visitEnd();
        }
        if (isOptional) {
            av0 = fv.visitAnnotation(AsmBindingClassLoader.toTypeDescriptor(Optional.class), true);
            av0.visitEnd();
        }

        fv.visitEnd();
    }

    // Constructor
    {
        MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        Label l0 = new Label();

        // super()
        if (!makeBean) {
            mv.visitLabel(l0);
            mv.visitLineNumber(20, l0);
            mv.visitVarInsn(ALOAD, 0);
            mv.visitMethodInsn(INVOKESPECIAL, superType, "<init>", "()V");
        } else {
            // super( getStaticBinding() )
            mv.visitLabel(l0);
            mv.visitVarInsn(ALOAD, 0);
            mv.visitMethodInsn(INVOKESTATIC, classSig, "getStaticBinding",
                    "()Lorg/simantics/databoard/binding/Binding;");
            mv.visitMethodInsn(INVOKESPECIAL, "org/simantics/databoard/util/Bean", "<init>",
                    "(Lorg/simantics/databoard/binding/Binding;)V");
        }

        mv.visitInsn(RETURN);
        Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLocalVariable("this", "L" + classSig + ";", null, l0, l1, 0);
        if (!makeBean) {
            mv.visitMaxs(1, 1);
        } else {
            mv.visitMaxs(2, 1);
        }
        mv.visitEnd();
    }

    // BINDING
    {
        FieldVisitor fv = cw.visitField(ACC_STATIC, "BINDING", "Lorg/simantics/databoard/binding/Binding;",
                null, null);
        fv.visitEnd();

        MethodVisitor mv = cw.visitMethod(ACC_STATIC, "getStaticBinding",
                "()Lorg/simantics/databoard/binding/Binding;", null, null);
        mv.visitCode();
        Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitFieldInsn(GETSTATIC, classSig, "BINDING", "Lorg/simantics/databoard/binding/Binding;");
        Label l1 = new Label();
        mv.visitJumpInsn(IFNONNULL, l1);
        mv.visitLdcInsn(Type.getType("L" + classSig + ";"));
        mv.visitMethodInsn(INVOKESTATIC, "org/simantics/databoard/Bindings", "getBindingUnchecked",
                "(Ljava/lang/Class;)Lorg/simantics/databoard/binding/Binding;");
        mv.visitFieldInsn(PUTSTATIC, classSig, "BINDING", "Lorg/simantics/databoard/binding/Binding;");
        mv.visitLabel(l1);
        mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        mv.visitFieldInsn(GETSTATIC, classSig, "BINDING", "Lorg/simantics/databoard/binding/Binding;");
        mv.visitInsn(ARETURN);
        mv.visitMaxs(1, 0);
        mv.visitEnd();
    }

    cw.visitEnd();
    byte[] data = cw.toByteArray();
    Class<?> clazz = defineClass(className, data, 0, data.length);
    BindingRequest br = new BindingRequest(clazz);
    return clazz;
}

From source file:org.simantics.databoard.binding.classfactory.AsmTypeClassFactory.java

License:Open Source License

public Class<?> createUnionClass(UnionType ut) throws BindingConstructionException {
    ClassWriter cw = new ClassWriter(0);

    // Create class name
    SignatureVisitor sv = new SignatureVisitor();
    ut.accept(sv, null);//from   www. ja  va2s  .  c  om
    String sig = sv.sb.toString() + "_" + Integer.toHexString(sv.hashcode);

    String hash = Integer.toHexString(ut.hashCode());
    String className = "org.simantics.databoard.UnionType_" + sig;
    String classSig = "org/simantics/databoard/UnionType_" + sig;
    Class<?> superClass = Object.class;
    String superType = AsmBindingClassLoader.toClassCanonicalName(superClass);

    cw.visit(V1_6, ACC_PUBLIC + ACC_SUPER, classSig, null, superType, null);

    AnnotationVisitor av0 = cw.visitAnnotation(AsmBindingClassLoader.toTypeDescriptor(Union.class), true);
    AnnotationVisitor av1 = av0.visitArray("value");
    for (Component c : ut.components) {
        BindingRequest br = classFactory.getClass(c.type);
        av1.visit(null, Type.getType(br.descriptor));
    }
    av1.visitEnd();
    av0.visitEnd();

    // Constructor
    {
        MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(20, l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V");
        mv.visitInsn(RETURN);
        Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLocalVariable("this", "L" + classSig + ";", null, l0, l1, 0);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }

    cw.visitEnd();
    byte[] data = cw.toByteArray();
    return defineClass(className, data, 0, data.length);
}

From source file:org.simantics.databoard.binding.reflection.AsmBindingClassLoader.java

License:Open Source License

public byte[] createBindingClass(ClassInfo ci, String bindingClassName) {
    //System.out.println("BindingFactory: "+bindingClassName+" (for "+ci.clazz.getClassLoader()+")");
    int count = ci.fields.length;
    ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS);
    ClassVisitor cv = cw;//new CheckClassAdapter(cw);

    FieldVisitor fv;//ww w.ja  v  a 2  s  .  c om
    MethodVisitor mv;
    AnnotationVisitor av0;

    String className = ci.clazz.getName().replaceAll("\\.", "/");
    bindingClassName = bindingClassName.replaceAll("\\.", "/");
    Object[] classNameX = new Object[] { className };
    String signature = "L" + bindingClassName + ";";

    // Constructor
    String superClass = "org/simantics/databoard/binding/reflection/ClassBinding";
    cv.visit(V1_6, ACC_PUBLIC + ACC_SUPER, bindingClassName, null, superClass, null);

    // Constructor
    {
        mv = cv.visitMethod(ACC_PUBLIC, "<init>", "(Lorg/simantics/databoard/type/RecordType;)V", null,
                new String[] { "org/simantics/databoard/binding/error/BindingConstructionException" });

        mv.visitCode();
        Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitLdcInsn(Type.getType("L" + className + ";"));
        mv.visitMethodInsn(INVOKESPECIAL, superClass, "<init>", "(Ljava/lang/Class;)V");

        Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitFieldInsn(PUTFIELD, bindingClassName, "type", "Lorg/simantics/databoard/type/Datatype;");

        Label l2 = new Label();
        mv.visitLabel(l2);
        mv.visitInsn(RETURN);

        Label l3 = new Label();
        mv.visitLabel(l3);
        mv.visitLocalVariable("this", signature, null, l0, l3, 0);
        mv.visitLocalVariable("type", "Lorg/simantics/databoard/type/RecordType;", null, l0, l3, 1);
        mv.visitMaxs(2, 2);
        mv.visitEnd();
    }

    // getComponent
    {
        mv = cv.visitMethod(ACC_PUBLIC, "getComponent", "(Ljava/lang/Object;I)Ljava/lang/Object;", null,
                new String[] { "org/simantics/databoard/binding/error/BindingException" });
        mv.visitCode();
        Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitTypeInsn(CHECKCAST, className);
        mv.visitVarInsn(ASTORE, 3);
        Label l1 = new Label();
        mv.visitLabel(l1);

        Label caseLabels[] = createFieldLabels(ci);
        Label elseLabel = new Label();

        if (count > 0) {
            // Switch
            mv.visitVarInsn(ILOAD, 2);
            mv.visitTableSwitchInsn(0, count - 1, elseLabel, caseLabels);

            // case i: x.field = value[i]
            for (int i = 0; i < count; i++) {
                Label label = caseLabels[i];
                Field field = ci.fields[i];
                String fieldName = field.getName();
                Class<?> fieldClass = ci.fields[i].getType();
                String typeDescriptor = toTypeDescriptor(fieldClass);

                Method getter = ci.getters[i];
                boolean useGetter = ((field.getModifiers() & Modifier.PUBLIC) == 0) && getter != null;

                mv.visitLabel(label);
                if (i == 0) {
                    mv.visitFrame(Opcodes.F_APPEND, 1, classNameX, 0, null);
                } else {
                    mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
                }

                // Read instance argument
                mv.visitVarInsn(ALOAD, 3);

                if (useGetter) {
                    // call getField
                    mv.visitMethodInsn(INVOKEVIRTUAL, className, getter.getName(), "()" + typeDescriptor);
                } else {
                    // Read field
                    mv.visitFieldInsn(GETFIELD, className, fieldName, typeDescriptor);
                }

                // Box 
                box(mv, fieldClass);

                mv.visitInsn(ARETURN);
            }

        }

        mv.visitLabel(elseLabel);
        if (count > 0) {
            mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        }
        mv.visitTypeInsn(NEW, "org/simantics/databoard/binding/error/BindingException");
        mv.visitInsn(DUP);
        mv.visitLdcInsn("Illegal field index");
        mv.visitMethodInsn(INVOKESPECIAL, "org/simantics/databoard/binding/error/BindingException", "<init>",
                "(Ljava/lang/String;)V");
        mv.visitInsn(ATHROW);

        // End 
        Label l19 = new Label();
        mv.visitLabel(l19);
        mv.visitLocalVariable("this", "L" + className + ";", null, l0, l19, 0);
        mv.visitLocalVariable("obj", "Ljava/lang/Object;", null, l0, l19, 1);
        mv.visitLocalVariable("index", "I", null, l0, l19, 2);
        //mv.visitLocalVariable("x", "Lorg/simantics/databoard/binding/reflection/MyClass;", null, l1, l19, 3);
        mv.visitMaxs(3, 4);
        mv.visitEnd();
    }

    // Create
    {
        mv = cv.visitMethod(ACC_PUBLIC + ACC_VARARGS, "create", "([Ljava/lang/Object;)Ljava/lang/Object;", null,
                new String[] { "org/simantics/databoard/binding/error/BindingException" });
        if (ci.beanConstructor != null) {
            mv.visitCode();
            Label l0 = new Label();
            mv.visitLabel(l0);
            mv.visitTypeInsn(NEW, className);
            mv.visitInsn(DUP);
            mv.visitVarInsn(ALOAD, 0);
            mv.visitMethodInsn(INVOKESPECIAL, className, "<init>",
                    "(Lorg/simantics/databoard/binding/Binding;)V");
            mv.visitVarInsn(ASTORE, 2);
            Label l1 = new Label();
            mv.visitLabel(l1);
            mv.visitVarInsn(ALOAD, 0);
            mv.visitVarInsn(ALOAD, 2);
            mv.visitVarInsn(ALOAD, 1);
            mv.visitMethodInsn(INVOKEVIRTUAL, bindingClassName, "setComponents",
                    "(Ljava/lang/Object;[Ljava/lang/Object;)V");
            Label l2 = new Label();
            mv.visitLabel(l2);
            mv.visitVarInsn(ALOAD, 2);
            mv.visitInsn(ARETURN);
            Label l3 = new Label();
            mv.visitLabel(l3);
            mv.visitLocalVariable("this", "L" + bindingClassName + ";", null, l0, l3, 0);
            mv.visitLocalVariable("values", "[Ljava/lang/Object;", null, l0, l3, 1);
            //mv.visitLocalVariable("x", "L"+className+";", null, l1, l3, 2);
            mv.visitMaxs(3, 3);
            mv.visitEnd();
        } else if (ci.argsConstructor != null) {
            mv.visitCode();
            Label l0 = new Label();
            mv.visitLabel(l0);
            mv.visitTypeInsn(NEW, className);
            mv.visitInsn(DUP);

            String constArgsDescriptor = "(";
            Class<?>[] args = ci.argsConstructor.getParameterTypes();
            for (int i = 0; i < count; i++) {
                Label label = new Label();
                Class<?> field = args[i];
                String fieldName = field.getName();
                Method getter = ci.getters[i];
                Class<?> fieldClass = ci.fields[i].getType();
                Class<?> boxClass = getBoxClass(fieldClass);
                String typeDescriptor = toTypeDescriptor(fieldClass);
                String boxTypeDescriptor = toTypeDescriptor(boxClass);
                constArgsDescriptor += typeDescriptor;

                mv.visitLabel(label);
                mv.visitVarInsn(ALOAD, 1);
                if (i < 6) {
                    mv.visitInsn(ICONST_0 + i);
                } else {
                    mv.visitIntInsn(BIPUSH, i);
                }

                mv.visitInsn(AALOAD);
                mv.visitTypeInsn(CHECKCAST, toClassCanonicalName(boxClass));
                unbox(mv, fieldClass);
            }

            Label l17 = new Label();
            mv.visitLabel(l17);
            constArgsDescriptor += ")V";
            mv.visitMethodInsn(INVOKESPECIAL, className, "<init>", constArgsDescriptor);
            mv.visitInsn(ARETURN);
            Label l18 = new Label();
            mv.visitLabel(l18);
            mv.visitLocalVariable("this", "L" + bindingClassName + ";", null, l0, l18, 0);
            mv.visitLocalVariable("values", "[Ljava/lang/Object;", null, l0, l18, 1);
            mv.visitMaxs(21, 2);
            mv.visitEnd();

        } else {
            mv.visitCode();
            Label l0 = new Label();
            mv.visitLabel(l0);
            mv.visitTypeInsn(NEW, className);
            mv.visitInsn(DUP);
            mv.visitMethodInsn(INVOKESPECIAL, className, "<init>", "()V");
            mv.visitVarInsn(ASTORE, 2);
            Label l1 = new Label();
            mv.visitLabel(l1);
            mv.visitVarInsn(ALOAD, 0);
            mv.visitVarInsn(ALOAD, 2);
            mv.visitVarInsn(ALOAD, 1);
            mv.visitMethodInsn(INVOKEVIRTUAL, bindingClassName, "setComponents",
                    "(Ljava/lang/Object;[Ljava/lang/Object;)V");
            Label l2 = new Label();
            mv.visitLabel(l2);
            mv.visitVarInsn(ALOAD, 2);
            mv.visitInsn(ARETURN);
            Label l3 = new Label();
            mv.visitLabel(l3);
            mv.visitLocalVariable("this", "L" + bindingClassName + ";", null, l0, l3, 0);
            mv.visitLocalVariable("values", "[Ljava/lang/Object;", null, l0, l3, 1);
            //mv.visitLocalVariable("x", "L"+className+";", null, l1, l3, 2);
            mv.visitMaxs(3, 3);
            mv.visitEnd();
        }
    }

    // CreatePartial
    mv = cv.visitMethod(ACC_PUBLIC, "createPartial", "()Ljava/lang/Object;", null,
            new String[] { "org/simantics/databoard/binding/error/BindingException" });
    if (ci.beanConstructor != null) {
        mv.visitCode();
        Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitTypeInsn(NEW, className);
        mv.visitInsn(DUP);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, className, "<init>", "(Lorg/simantics/databoard/binding/Binding;)V");
        mv.visitInsn(ARETURN);
        Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLocalVariable("this", "L" + bindingClassName + ";", null, l0, l1, 0);
        mv.visitMaxs(3, 1);
        mv.visitEnd();
    } else if (ci.noArgsConstructor != null) {
        // return new MyClass();
        mv.visitCode();
        Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitTypeInsn(NEW, className);
        mv.visitInsn(DUP);
        mv.visitMethodInsn(INVOKESPECIAL, className, "<init>", "()V");
        mv.visitInsn(ARETURN);
        Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLocalVariable("this", "L" + bindingClassName + ";", null, l0, l1, 0);
        mv.visitMaxs(2, 1);
        mv.visitEnd();
    } else {
        mv.visitCode();
        Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitIntInsn(BIPUSH, count);
        mv.visitTypeInsn(ANEWARRAY, "java/lang/Object");
        mv.visitVarInsn(ASTORE, 1);
        Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitInsn(ICONST_0);
        mv.visitVarInsn(ISTORE, 2);
        Label l2 = new Label();
        mv.visitLabel(l2);
        Label l3 = new Label();
        mv.visitJumpInsn(GOTO, l3);
        Label l4 = new Label();
        mv.visitLabel(l4);
        mv.visitFrame(Opcodes.F_APPEND, 2, new Object[] { "[Ljava/lang/Object;", Opcodes.INTEGER }, 0, null);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, bindingClassName, "componentBindings",
                "[Lorg/simantics/databoard/binding/Binding;");
        mv.visitVarInsn(ILOAD, 2);
        mv.visitInsn(AALOAD);
        mv.visitVarInsn(ASTORE, 3);
        Label l5 = new Label();
        mv.visitLabel(l5);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitVarInsn(ILOAD, 2);
        mv.visitVarInsn(ALOAD, 3);
        mv.visitMethodInsn(INVOKEVIRTUAL, "org/simantics/databoard/binding/Binding", "createDefault",
                "()Ljava/lang/Object;");
        mv.visitInsn(AASTORE);
        Label l6 = new Label();
        mv.visitLabel(l6);
        mv.visitIincInsn(2, 1);
        mv.visitLabel(l3);
        mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        mv.visitVarInsn(ILOAD, 2);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitInsn(ARRAYLENGTH);
        mv.visitJumpInsn(IF_ICMPLT, l4);
        Label l7 = new Label();
        mv.visitLabel(l7);
        mv.visitLineNumber(109, l7);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKEVIRTUAL, bindingClassName, "create",
                "([Ljava/lang/Object;)Ljava/lang/Object;");
        mv.visitInsn(ARETURN);
        Label l8 = new Label();
        mv.visitLabel(l8);
        mv.visitLocalVariable("this", "L" + bindingClassName + ";", null, l0, l8, 0);
        mv.visitLocalVariable("values", "[Ljava/lang/Object;", null, l1, l8, 1);
        mv.visitLocalVariable("i", "I", null, l2, l7, 2);
        mv.visitLocalVariable("fb", "Lorg/simantics/databoard/binding/Binding;", null, l5, l6, 3);
        mv.visitMaxs(3, 4);
        mv.visitEnd();
    }

    // setComponent
    {
        mv = cv.visitMethod(ACC_PUBLIC, "setComponent", "(Ljava/lang/Object;ILjava/lang/Object;)V", null,
                new String[] { "org/simantics/databoard/binding/error/BindingException" });
        mv.visitCode();
        Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitTypeInsn(CHECKCAST, className);
        mv.visitVarInsn(ASTORE, 4);
        Label endLabel = new Label();
        Label l1 = new Label();
        mv.visitLabel(l1);

        Label elseLabel = new Label();
        Label labels[] = new Label[count];
        for (int i = 0; i < count; i++)
            labels[i] = new Label();

        if (count > 0) {
            mv.visitVarInsn(ILOAD, 2);
            mv.visitTableSwitchInsn(0, count - 1, elseLabel, labels);

            for (int i = 0; i < count; i++) {
                Label label = labels[i];
                mv.visitLabel(label);
                Field field = ci.fields[i];
                String fieldName = field.getName();
                Class<?> fieldClass = ci.fields[i].getType();
                Class<?> boxClass = getBoxClass(fieldClass);
                String typeDescriptor = toTypeDescriptor(fieldClass);
                String boxTypeDescriptor = toTypeDescriptor(boxClass);

                Method setter = ci.setters[i];
                Class<?> setterClass = setter != null ? setter.getParameterTypes()[0] : null;
                boolean useSetter = ((field.getModifiers() & Modifier.PUBLIC) == 0) && setter != null;

                if (i == 0) {
                    mv.visitFrame(Opcodes.F_APPEND, 1, classNameX, 0, null);
                } else {
                    mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
                }
                mv.visitVarInsn(ALOAD, 4);
                mv.visitVarInsn(ALOAD, 3);
                mv.visitTypeInsn(CHECKCAST, toClassCanonicalName(boxClass));

                if (useSetter) {
                    unbox(mv, setterClass);
                    mv.visitMethodInsn(INVOKEVIRTUAL, className, setter.getName(), "(" + typeDescriptor + ")V");
                } else {
                    unbox(mv, fieldClass);
                    mv.visitFieldInsn(PUTFIELD, className, field.getName(), typeDescriptor);
                }
                mv.visitInsn(RETURN);
            }
        }

        mv.visitLabel(elseLabel);
        mv.visitLineNumber(178, elseLabel);
        if (count > 0) {
            mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        }
        mv.visitTypeInsn(NEW, "org/simantics/databoard/binding/error/BindingException");
        mv.visitInsn(DUP);
        mv.visitLdcInsn("Illegal field index");
        mv.visitMethodInsn(INVOKESPECIAL, "org/simantics/databoard/binding/error/BindingException", "<init>",
                "(Ljava/lang/String;)V");
        mv.visitInsn(ATHROW);

        mv.visitLabel(endLabel);
        mv.visitLocalVariable("this", "L" + bindingClassName + ";", null, l0, endLabel, 0);
        mv.visitLocalVariable("obj", "Ljava/lang/Object;", null, l0, endLabel, 1);
        mv.visitLocalVariable("index", "I", null, l0, endLabel, 2);
        mv.visitLocalVariable("value", "Ljava/lang/Object;", null, l0, endLabel, 3);
        //mv.visitLocalVariable("x", "L"+className+";", null, l1, endLabel, 4);
        mv.visitMaxs(3, 5);
        mv.visitEnd();
    }

    // IsImmutable
    {
        mv = cv.visitMethod(ACC_PUBLIC, "isImmutable", "()Z", null, null);
        mv.visitCode();
        Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitInsn(ICONST_0);
        mv.visitInsn(IRETURN);
        Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLocalVariable("this", "L" + className + ";", null, l0, l1, 0);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }

    // IsInstance
    {
        mv = cv.visitMethod(ACC_PUBLIC, "isInstance", "(Ljava/lang/Object;)Z", null, null);
        mv.visitCode();
        Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitTypeInsn(INSTANCEOF, className);
        mv.visitInsn(IRETURN);
        Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLocalVariable("this", "L" + className + ";", null, l0, l1, 0);
        mv.visitLocalVariable("obj", "Ljava/lang/Object;", null, l0, l1, 1);
        mv.visitMaxs(1, 2);
        mv.visitEnd();
    }

    // SetComponents
    {
        mv = cv.visitMethod(ACC_PUBLIC + ACC_VARARGS, "setComponents",
                "(Ljava/lang/Object;[Ljava/lang/Object;)V", null,
                new String[] { "org/simantics/databoard/binding/error/BindingException" });
        mv.visitCode();
        Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitTypeInsn(CHECKCAST, className);
        mv.visitVarInsn(ASTORE, 3);
        Label firstLabel = l0;

        for (int i = 0; i < count; i++) {
            Label label = new Label();
            if (firstLabel == l0)
                firstLabel = label;
            Field field = ci.fields[i];
            String fieldName = field.getName();
            Class<?> fieldClass = ci.fields[i].getType();
            Class<?> boxClass = getBoxClass(fieldClass);
            String typeDescriptor = toTypeDescriptor(fieldClass);
            String boxTypeDescriptor = toTypeDescriptor(boxClass);

            Method setter = ci.setters[i];
            Class<?> setterClass = setter != null ? setter.getParameterTypes()[0] : null;
            boolean useSetter = ((field.getModifiers() & Modifier.PUBLIC) == 0) && setter != null;

            mv.visitLabel(label);
            mv.visitVarInsn(ALOAD, 3);
            mv.visitVarInsn(ALOAD, 2);
            if (i < 6) {
                mv.visitInsn(ICONST_0 + i);
            } else {
                mv.visitIntInsn(BIPUSH, i);
            }
            mv.visitInsn(AALOAD);
            mv.visitTypeInsn(CHECKCAST, toClassCanonicalName(boxClass));

            if (useSetter) {
                unbox(mv, setterClass);
                mv.visitMethodInsn(INVOKEVIRTUAL, className, setter.getName(), "(" + typeDescriptor + ")V");
            } else {
                unbox(mv, fieldClass);
                mv.visitFieldInsn(PUTFIELD, className, field.getName(), typeDescriptor);
            }

        }
        Label l17 = new Label();
        mv.visitLabel(l17);
        mv.visitInsn(RETURN);
        Label endLabel = new Label();
        mv.visitLabel(endLabel);
        mv.visitLocalVariable("this", "L" + className + ";", null, l0, endLabel, 0);
        mv.visitLocalVariable("obj", "Ljava/lang/Object;", null, l0, endLabel, 1);
        mv.visitLocalVariable("value", "[Ljava/lang/Object;", null, l0, endLabel, 2);
        //mv.visitLocalVariable("x", "Lorg/simantics/databoard/binding/reflection/MyClass;", null, firstLabel, endLabel, 3);
        mv.visitMaxs(3, 4);
        mv.visitEnd();
    }

    // Add primitive setters
    {
        addGetSetPrimitive(ci, cv, "Boolean", "Z", bindingClassName);
        addGetSetPrimitive(ci, cv, "Byte", "B", bindingClassName);
        addGetSetPrimitive(ci, cv, "Int", "I", bindingClassName);
        addGetSetPrimitive(ci, cv, "Long", "J", bindingClassName);
        addGetSetPrimitive(ci, cv, "Float", "F", bindingClassName);
        addGetSetPrimitive(ci, cv, "Double", "D", bindingClassName);
    }

    cv.visitEnd();
    return cw.toByteArray();
}