Example usage for org.objectweb.asm MethodVisitor visitIntInsn

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

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Introduction

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

Prototype

public void visitIntInsn(final int opcode, final int operand)

Source Link

Document

Visits an instruction with a single int operand.

Usage

From source file:org.mbte.groovypp.compiler.bytecode.BytecodeExpr.java

License:Apache License

public void pushConstant(int value, MethodVisitor mv) {
    switch (value) {
    case 0://from   w  w w.  j av  a 2  s.  c om
        mv.visitInsn(Opcodes.ICONST_0);
        break;
    case 1:
        mv.visitInsn(Opcodes.ICONST_1);
        break;
    case 2:
        mv.visitInsn(Opcodes.ICONST_2);
        break;
    case 3:
        mv.visitInsn(Opcodes.ICONST_3);
        break;
    case 4:
        mv.visitInsn(Opcodes.ICONST_4);
        break;
    case 5:
        mv.visitInsn(Opcodes.ICONST_5);
        break;
    default:
        if (value >= Byte.MIN_VALUE && value <= Byte.MAX_VALUE) {
            mv.visitIntInsn(Opcodes.BIPUSH, value);
        } else if (value >= Short.MIN_VALUE && value <= Short.MAX_VALUE) {
            mv.visitIntInsn(Opcodes.SIPUSH, value);
        } else {
            mv.visitLdcInsn(Integer.valueOf(value));
        }
    }
}

From source file:org.mbte.groovypp.compiler.transformers.ArrayExpressionTransformer.java

License:Apache License

public Expression transform(final ArrayExpression exp, final CompilerTransformer compiler) {
    final ClassNode elementType = exp.getElementType();
    final List sizeExpression = exp.getSizeExpression();

    return new BytecodeExpr(exp, exp.getType()) {
        protected void compile(MethodVisitor mv) {
            int size = 0;
            int dimensions = 0;
            if (sizeExpression != null) {
                for (Iterator iter = sizeExpression.iterator(); iter.hasNext();) {
                    Expression element = (Expression) iter.next();
                    if (element == ConstantExpression.EMPTY_EXPRESSION)
                        break;
                    dimensions++;//  www  . ja v a 2s .  co  m

                    final BytecodeExpr expression = (BytecodeExpr) compiler.transform(element);
                    expression.visit(mv);
                    box(expression.getType(), mv);
                    unbox(ClassHelper.int_TYPE, mv);
                }
            } else {
                size = exp.getExpressions().size();
                pushConstant(size, mv);
            }

            int storeIns = AASTORE;
            if (sizeExpression != null) {
                mv.visitMultiANewArrayInsn(BytecodeHelper.getTypeDescription(exp.getType()), dimensions);
            } else if (ClassHelper.isPrimitiveType(elementType)) {
                int primType = 0;
                if (elementType == ClassHelper.boolean_TYPE) {
                    primType = T_BOOLEAN;
                    storeIns = BASTORE;
                } else if (elementType == ClassHelper.char_TYPE) {
                    primType = T_CHAR;
                    storeIns = CASTORE;
                } else if (elementType == ClassHelper.float_TYPE) {
                    primType = T_FLOAT;
                    storeIns = FASTORE;
                } else if (elementType == ClassHelper.double_TYPE) {
                    primType = T_DOUBLE;
                    storeIns = DASTORE;
                } else if (elementType == ClassHelper.byte_TYPE) {
                    primType = T_BYTE;
                    storeIns = BASTORE;
                } else if (elementType == ClassHelper.short_TYPE) {
                    primType = T_SHORT;
                    storeIns = SASTORE;
                } else if (elementType == ClassHelper.int_TYPE) {
                    primType = T_INT;
                    storeIns = IASTORE;
                } else if (elementType == ClassHelper.long_TYPE) {
                    primType = T_LONG;
                    storeIns = LASTORE;
                }
                mv.visitIntInsn(NEWARRAY, primType);
            } else {
                mv.visitTypeInsn(ANEWARRAY,
                        BytecodeHelper.getClassInternalName(exp.getType().getComponentType()));
            }

            for (int i = 0; i < size; i++) {
                mv.visitInsn(DUP);
                pushConstant(i, mv);
                BytecodeExpr elementExpression = (BytecodeExpr) compiler.transform(exp.getExpression(i));
                elementExpression = compiler.cast(elementExpression, elementType);
                elementExpression.visit(mv);
                box(elementExpression.getType(), mv);
                unbox(elementType, mv);
                mv.visitInsn(storeIns);
            }
        }
    };
}

From source file:org.openquark.cal.internal.javamodel.AsmJavaBytecodeGenerator.java

License:Open Source License

/**
 * Creates and initializes a 1-dimensional array (as specified by arrayCreationExpr) and then pushes a reference
 * to the array onto the stack./*from www.  j a v a2 s  . co  m*/
 * 
 * @param arrayCreationExpr
 * @param context
 * @return JavaTypeName the type of the result on the operand stack. 
 * @throws JavaGenerationException
 */
private static JavaTypeName encodeArrayCreationExpr(JavaExpression.ArrayCreationExpression arrayCreationExpr,
        GenerationContext context) throws JavaGenerationException {

    MethodVisitor mv = context.getMethodVisitor();
    final int nArrayElements = arrayCreationExpr.getNElementValues();

    //push the n of elements of the array onto the stack.       
    encodePushIntValue(nArrayElements, context);

    JavaTypeName arrayElementType = arrayCreationExpr.getArrayElementTypeName();
    switch (arrayElementType.getTag()) {

    case JavaTypeName.VOID_TAG:
        throw new JavaGenerationException("Cannot have an array of with void element types.");

    case JavaTypeName.BOOLEAN_TAG:
    case JavaTypeName.BYTE_TAG:
    case JavaTypeName.SHORT_TAG:
    case JavaTypeName.CHAR_TAG:
    case JavaTypeName.INT_TAG:
    case JavaTypeName.LONG_TAG:
    case JavaTypeName.DOUBLE_TAG:
    case JavaTypeName.FLOAT_TAG: {
        //push the instruction to create a 1-dimensonal array of primitive values
        mv.visitIntInsn(Opcodes.NEWARRAY, getNewArrayArgCode(arrayElementType));
        break;
    }

    case JavaTypeName.ARRAY_TAG: {
        throw new JavaGenerationException(
                "JavaExpression.ArrayCreationExpression supports only 1 dimensional arrays.");
    }

    case JavaTypeName.OBJECT_TAG: {
        //push the instruction to create a 1-dimensonal array of reference values
        mv.visitTypeInsn(Opcodes.ANEWARRAY, arrayElementType.getJVMInternalName());
        break;
    }

    default: {
        throw new IllegalArgumentException();
    }
    }

    final int arrayElemStoreCode = getArrayStoreOpCode(arrayElementType);

    //now initialize the elements of the array
    for (int i = 0; i < nArrayElements; ++i) {
        //duplicate the array reference on the stack
        mv.visitInsn(Opcodes.DUP);

        //push i
        encodePushIntValue(i, context);

        //push the code to evalaute the ith element expression
        encodeExpr(arrayCreationExpr.getElementValue(i), context);

        //array[i] = elementExpr           
        mv.visitInsn(arrayElemStoreCode);
    }

    return arrayElementType.makeArrayType();
}

From source file:org.openquark.cal.internal.javamodel.AsmJavaBytecodeGenerator.java

License:Open Source License

/**
 * Create the Java code for a given class instance creation expression. The new object reference will be pushed onto
 * the operand stack. //  www. j a v a 2s .com
 * 
 * @param cice the class instance creation expression
 * @param context 
 * @return JavaTypeName    
 * @throws JavaGenerationException
 */
private static JavaTypeName encodeClassInstanceCreationExpr(
        final JavaExpression.ClassInstanceCreationExpression cice, final GenerationContext context)
        throws JavaGenerationException {

    final MethodVisitor mv = context.getMethodVisitor();
    final JavaTypeName classType = cice.getClassName();
    if (classType instanceof JavaTypeName.Reference.Array) {

        final JavaTypeName.Reference.Array arrayType = (JavaTypeName.Reference.Array) classType;
        final int nSizedDims = cice.getNArgs();
        if (nSizedDims == 1) {

            //for example, new String[10][][] will hit this case since it has 1 sized dimension (even though a multi-dimensional array is 
            //being created

            //push the size of the dimension
            encodeExpr(cice.getArg(0), context);

            final JavaTypeName arrayElementType = arrayType.getIncrementalElementType();
            switch (arrayElementType.getTag()) {

            case JavaTypeName.VOID_TAG:
                throw new JavaGenerationException("Cannot have an array of with void element types.");

            case JavaTypeName.BOOLEAN_TAG:
            case JavaTypeName.BYTE_TAG:
            case JavaTypeName.SHORT_TAG:
            case JavaTypeName.CHAR_TAG:
            case JavaTypeName.INT_TAG:
            case JavaTypeName.LONG_TAG:
            case JavaTypeName.DOUBLE_TAG:
            case JavaTypeName.FLOAT_TAG: {
                //push the instruction to create a 1-dimensonal array of primitive values
                mv.visitIntInsn(Opcodes.NEWARRAY, getNewArrayArgCode(arrayElementType));
                break;
            }

            case JavaTypeName.ARRAY_TAG:
            case JavaTypeName.OBJECT_TAG: {
                //push the instruction to create a 1-dimensonal array of reference values
                mv.visitTypeInsn(Opcodes.ANEWARRAY, arrayElementType.getJVMInternalName());
                break;
            }

            default: {
                throw new IllegalArgumentException();
            }
            }

            return arrayType;

        } else {
            //the case of multi-dimensional arrays where more than 1 sizing dimension is supplied.

            // push args onto the stack
            for (int i = 0; i < nSizedDims; i++) {
                encodeExpr(cice.getArg(i), context);
            }

            mv.visitMultiANewArrayInsn(arrayType.getJVMInternalName(), nSizedDims);

            return arrayType;
        }

    } else if (classType instanceof JavaTypeName.Reference.Object) {

        String internalClassName = classType.getJVMInternalName();

        // create uninitialized object, duplicate the ref.
        mv.visitTypeInsn(Opcodes.NEW, internalClassName);
        mv.visitInsn(Opcodes.DUP);

        // push args onto the stack
        for (int i = 0, nArgs = cice.getNArgs(); i < nArgs; i++) {
            encodeExpr(cice.getArg(i), context);
        }

        //descriptor for the constructor
        StringBuilder descriptor = new StringBuilder("(");
        for (int i = 0, nArgs = cice.getNArgs(); i < nArgs; ++i) {
            descriptor.append(cice.getParamType(i).getJVMDescriptor());
        }
        descriptor.append(")V");

        // initialize - consumes the args and the duplicate reference.
        mv.visitMethodInsn(Opcodes.INVOKESPECIAL, internalClassName, "<init>", descriptor.toString());

        return classType;

    } else {
        throw new JavaGenerationException("cannot create a new instance of a primitive type.");
    }
}

From source file:org.openquark.cal.internal.javamodel.AsmJavaBytecodeGenerator.java

License:Open Source License

/**
 * Encodes instructions to push an int value onto the operand stack.
 * Does not reallocate the wrapper argument 'value'.
 * @param value to be pushed /*from   w  w  w  .  j av a 2  s. c  o  m*/
 * @param context
 * @return JavaTypeName the type of the result on the operand stack.      
 */
private static JavaTypeName encodePushIntegerValue(Integer value, GenerationContext context) {

    MethodVisitor mv = context.getMethodVisitor();

    int v = value.intValue();

    if (v >= -1 && v <= 5) {
        // Use ICONST_n
        mv.visitInsn(Opcodes.ICONST_0 + v);

    } else if (v >= Byte.MIN_VALUE && v <= Byte.MAX_VALUE) {
        // Use BIPUSH
        mv.visitIntInsn(Opcodes.BIPUSH, (byte) v);

    } else if (v >= Short.MIN_VALUE && v <= Short.MAX_VALUE) {
        // Use SIPUSH
        mv.visitIntInsn(Opcodes.SIPUSH, (short) v);

    } else {
        // If everything fails create a Constant pool entry
        mv.visitLdcInsn(value);
    }

    return JavaTypeName.INT;
}

From source file:org.openquark.cal.internal.javamodel.AsmJavaBytecodeGenerator.java

License:Open Source License

/**
 * Encodes instructions to push an int value onto the operand stack.
 * May need to box the argument 'value' if it is sufficiently large that
 * it needs to go into the constant pool.
 * @param value to be pushed //  w  ww  .  j a v  a 2s .  c o  m
 * @param context
 * @return JavaTypeName the type of the result on the operand stack. 
 */
private static JavaTypeName encodePushIntValue(int value, GenerationContext context) {

    MethodVisitor mv = context.getMethodVisitor();

    if (value >= -1 && value <= 5) {
        // Use ICONST_n
        mv.visitInsn(Opcodes.ICONST_0 + value);

    } else if (value >= Byte.MIN_VALUE && value <= Byte.MAX_VALUE) {
        // Use BIPUSH
        mv.visitIntInsn(Opcodes.BIPUSH, (byte) value);

    } else if (value >= Short.MIN_VALUE && value <= Short.MAX_VALUE) {
        // Use SIPUSH
        mv.visitIntInsn(Opcodes.SIPUSH, (short) value);

    } else {
        // If everything fails create a Constant pool entry
        mv.visitLdcInsn(Integer.valueOf(value));
    }

    return JavaTypeName.INT;
}

From source file:org.qi4j.runtime.composite.FragmentClassLoader.java

License:Open Source License

private static void insn(MethodVisitor mv, int length) {
    switch (length) {
    case 0:/*ww  w  .ja va2 s.  c om*/
        mv.visitInsn(ICONST_0);
        return;
    case 1:
        mv.visitInsn(ICONST_1);
        return;
    case 2:
        mv.visitInsn(ICONST_2);
        return;
    case 3:
        mv.visitInsn(ICONST_3);
        return;
    case 4:
        mv.visitInsn(ICONST_4);
        return;
    case 5:
        mv.visitInsn(ICONST_5);
        return;
    default:
        mv.visitIntInsn(BIPUSH, length);
    }
}

From source file:org.qi4j.test.ASMTest.java

License:Open Source License

public static byte[] generateClass() {
    ClassWriter cw = new ClassWriter(0);
    FieldVisitor fv;//  w w  w.j a v a 2  s  . com
    MethodVisitor mv;
    AnnotationVisitor av0;

    cw.visit(V1_6, ACC_PUBLIC + ACC_SUPER, "org/qi4j/satisfiedBy/SomeMixin_Stub", null,
            "org/qi4j/satisfiedBy/SomeMixin", null);

    {
        fv = cw.visitField(ACC_PUBLIC, "_instance", "Lorg/qi4j/spi/composite/CompositeInvoker;", null, null);
        fv.visitEnd();
    }
    {
        fv = cw.visitField(ACC_PRIVATE + ACC_STATIC, "m1", "Ljava/lang/reflect/Method;", null, null);
        fv.visitEnd();
    }
    {
        fv = cw.visitField(ACC_PRIVATE + ACC_STATIC, "m2", "Ljava/lang/reflect/Method;", null, null);
        fv.visitEnd();
    }
    {
        fv = cw.visitField(ACC_PRIVATE + ACC_STATIC, "m3", "Ljava/lang/reflect/Method;", null, null);
        fv.visitEnd();
    }
    {
        fv = cw.visitField(ACC_PRIVATE + ACC_STATIC, "m4", "Ljava/lang/reflect/Method;", null, null);
        fv.visitEnd();
    }
    {
        fv = cw.visitField(ACC_PRIVATE + ACC_STATIC, "m5", "Ljava/lang/reflect/Method;", null, null);
        fv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "org/qi4j/satisfiedBy/SomeMixin", "<init>", "()V");
        mv.visitInsn(RETURN);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "(Ljava/lang/String;)V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKESPECIAL, "org/qi4j/satisfiedBy/SomeMixin", "<init>", "(Ljava/lang/String;)V");
        mv.visitInsn(RETURN);
        mv.visitMaxs(2, 2);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "other", "()Ljava/lang/String;", null, null);
        mv.visitCode();
        Label l0 = new Label();
        Label l1 = new Label();
        Label l2 = new Label();
        mv.visitTryCatchBlock(l0, l1, l2, "java/lang/Throwable");
        mv.visitLabel(l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, "org/qi4j/satisfiedBy/SomeMixin_Stub", "_instance",
                "Lorg/qi4j/spi/composite/CompositeInvoker;");
        mv.visitFieldInsn(GETSTATIC, "org/qi4j/satisfiedBy/SomeMixin_Stub", "m1", "Ljava/lang/reflect/Method;");
        mv.visitInsn(ACONST_NULL);
        mv.visitMethodInsn(INVOKEINTERFACE, "org/qi4j/spi/composite/CompositeInvoker", "invokeComposite",
                "(Ljava/lang/reflect/Method;[Ljava/lang/Object;)Ljava/lang/Object;");
        mv.visitTypeInsn(CHECKCAST, "java/lang/String");
        mv.visitLabel(l1);
        mv.visitInsn(ARETURN);
        mv.visitLabel(l2);
        mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { "java/lang/Throwable" });
        mv.visitVarInsn(ASTORE, 1);
        mv.visitTypeInsn(NEW, "java/lang/reflect/UndeclaredThrowableException");
        mv.visitInsn(DUP);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/reflect/UndeclaredThrowableException", "<init>",
                "(Ljava/lang/Throwable;)V");
        mv.visitInsn(ATHROW);
        mv.visitMaxs(3, 2);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "foo", "(Ljava/lang/String;I)Ljava/lang/String;", null,
                new String[] { "java/lang/IllegalArgumentException" });
        mv.visitCode();
        Label l0 = new Label();
        Label l1 = new Label();
        Label l2 = new Label();
        mv.visitTryCatchBlock(l0, l1, l2, "java/lang/IllegalArgumentException");
        Label l3 = new Label();
        mv.visitTryCatchBlock(l0, l1, l3, "java/lang/Throwable");
        mv.visitLabel(l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, "org/qi4j/satisfiedBy/SomeMixin_Stub", "_instance",
                "Lorg/qi4j/spi/composite/CompositeInvoker;");
        mv.visitFieldInsn(GETSTATIC, "org/qi4j/satisfiedBy/SomeMixin_Stub", "m2", "Ljava/lang/reflect/Method;");
        mv.visitInsn(ICONST_2);
        mv.visitTypeInsn(ANEWARRAY, "java/lang/Object");
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_1);
        mv.visitVarInsn(ILOAD, 2);
        mv.visitMethodInsn(INVOKESTATIC, "java/lang/Integer", "valueOf", "(I)Ljava/lang/Integer;");
        mv.visitInsn(AASTORE);
        mv.visitMethodInsn(INVOKEINTERFACE, "org/qi4j/spi/composite/CompositeInvoker", "invokeComposite",
                "(Ljava/lang/reflect/Method;[Ljava/lang/Object;)Ljava/lang/Object;");
        mv.visitTypeInsn(CHECKCAST, "java/lang/String");
        mv.visitLabel(l1);
        mv.visitInsn(ARETURN);
        mv.visitLabel(l2);
        mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { "java/lang/IllegalArgumentException" });
        mv.visitVarInsn(ASTORE, 3);
        mv.visitVarInsn(ALOAD, 3);
        mv.visitInsn(ATHROW);
        mv.visitLabel(l3);
        mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { "java/lang/Throwable" });
        mv.visitVarInsn(ASTORE, 3);
        mv.visitTypeInsn(NEW, "java/lang/reflect/UndeclaredThrowableException");
        mv.visitInsn(DUP);
        mv.visitVarInsn(ALOAD, 3);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/reflect/UndeclaredThrowableException", "<init>",
                "(Ljava/lang/Throwable;)V");
        mv.visitInsn(ATHROW);
        mv.visitMaxs(6, 4);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "bar", "(DZFCIJSBLjava/lang/Double;[Ljava/lang/Object;[I)V", null,
                null);
        mv.visitCode();
        Label l0 = new Label();
        Label l1 = new Label();
        Label l2 = new Label();
        mv.visitTryCatchBlock(l0, l1, l2, "java/lang/Throwable");
        mv.visitLabel(l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, "org/qi4j/satisfiedBy/SomeMixin_Stub", "_instance",
                "Lorg/qi4j/spi/composite/CompositeInvoker;");
        mv.visitFieldInsn(GETSTATIC, "org/qi4j/satisfiedBy/SomeMixin_Stub", "m3", "Ljava/lang/reflect/Method;");
        mv.visitIntInsn(BIPUSH, 11);
        mv.visitTypeInsn(ANEWARRAY, "java/lang/Object");
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_0);
        mv.visitVarInsn(DLOAD, 1);
        mv.visitMethodInsn(INVOKESTATIC, "java/lang/Double", "valueOf", "(D)Ljava/lang/Double;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_1);
        mv.visitVarInsn(ILOAD, 3);
        mv.visitMethodInsn(INVOKESTATIC, "java/lang/Boolean", "valueOf", "(Z)Ljava/lang/Boolean;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_2);
        mv.visitVarInsn(FLOAD, 4);
        mv.visitMethodInsn(INVOKESTATIC, "java/lang/Float", "valueOf", "(F)Ljava/lang/Float;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_3);
        mv.visitVarInsn(ILOAD, 5);
        mv.visitMethodInsn(INVOKESTATIC, "java/lang/Character", "valueOf", "(C)Ljava/lang/Character;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_4);
        mv.visitVarInsn(ILOAD, 6);
        mv.visitMethodInsn(INVOKESTATIC, "java/lang/Integer", "valueOf", "(I)Ljava/lang/Integer;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_5);
        mv.visitVarInsn(LLOAD, 7);
        mv.visitMethodInsn(INVOKESTATIC, "java/lang/Long", "valueOf", "(J)Ljava/lang/Long;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitIntInsn(BIPUSH, 6);
        mv.visitVarInsn(ILOAD, 9);
        mv.visitMethodInsn(INVOKESTATIC, "java/lang/Short", "valueOf", "(S)Ljava/lang/Short;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitIntInsn(BIPUSH, 7);
        mv.visitVarInsn(ILOAD, 10);
        mv.visitMethodInsn(INVOKESTATIC, "java/lang/Byte", "valueOf", "(B)Ljava/lang/Byte;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitIntInsn(BIPUSH, 8);
        mv.visitVarInsn(ALOAD, 11);
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitIntInsn(BIPUSH, 9);
        mv.visitVarInsn(ALOAD, 12);
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitIntInsn(BIPUSH, 10);
        mv.visitVarInsn(ALOAD, 13);
        mv.visitInsn(AASTORE);
        mv.visitMethodInsn(INVOKEINTERFACE, "org/qi4j/spi/composite/CompositeInvoker", "invokeComposite",
                "(Ljava/lang/reflect/Method;[Ljava/lang/Object;)Ljava/lang/Object;");
        mv.visitInsn(POP);
        mv.visitLabel(l1);
        Label l3 = new Label();
        mv.visitJumpInsn(GOTO, l3);
        mv.visitLabel(l2);
        mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { "java/lang/Throwable" });
        mv.visitVarInsn(ASTORE, 14);
        mv.visitTypeInsn(NEW, "java/lang/reflect/UndeclaredThrowableException");
        mv.visitInsn(DUP);
        mv.visitVarInsn(ALOAD, 14);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/reflect/UndeclaredThrowableException", "<init>",
                "(Ljava/lang/Throwable;)V");
        mv.visitInsn(ATHROW);
        mv.visitLabel(l3);
        mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        mv.visitInsn(RETURN);
        mv.visitMaxs(7, 15);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "multiEx", "(Ljava/lang/String;)V", null,
                new String[] { "org/qi4j/satisfiedBy/Exception1", "org/qi4j/satisfiedBy/Exception2" });
        mv.visitCode();
        Label l0 = new Label();
        Label l1 = new Label();
        Label l2 = new Label();
        mv.visitTryCatchBlock(l0, l1, l2, "org/qi4j/satisfiedBy/Exception1");
        Label l3 = new Label();
        mv.visitTryCatchBlock(l0, l1, l3, "org/qi4j/satisfiedBy/Exception2");
        Label l4 = new Label();
        mv.visitTryCatchBlock(l0, l1, l4, "java/lang/Throwable");
        mv.visitLabel(l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, "org/qi4j/satisfiedBy/SomeMixin_Stub", "_instance",
                "Lorg/qi4j/spi/composite/CompositeInvoker;");
        mv.visitFieldInsn(GETSTATIC, "org/qi4j/satisfiedBy/SomeMixin_Stub", "m4", "Ljava/lang/reflect/Method;");
        mv.visitInsn(ICONST_1);
        mv.visitTypeInsn(ANEWARRAY, "java/lang/Object");
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitInsn(AASTORE);
        mv.visitMethodInsn(INVOKEINTERFACE, "org/qi4j/spi/composite/CompositeInvoker", "invokeComposite",
                "(Ljava/lang/reflect/Method;[Ljava/lang/Object;)Ljava/lang/Object;");
        mv.visitInsn(POP);
        mv.visitLabel(l1);
        Label l5 = new Label();
        mv.visitJumpInsn(GOTO, l5);
        mv.visitLabel(l2);
        mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { "org/qi4j/satisfiedBy/Exception1" });
        mv.visitVarInsn(ASTORE, 2);
        mv.visitVarInsn(ALOAD, 2);
        mv.visitInsn(ATHROW);
        mv.visitLabel(l3);
        mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { "org/qi4j/satisfiedBy/Exception2" });
        mv.visitVarInsn(ASTORE, 2);
        mv.visitVarInsn(ALOAD, 2);
        mv.visitInsn(ATHROW);
        mv.visitLabel(l4);
        mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { "java/lang/Throwable" });
        mv.visitVarInsn(ASTORE, 2);
        mv.visitTypeInsn(NEW, "java/lang/reflect/UndeclaredThrowableException");
        mv.visitInsn(DUP);
        mv.visitVarInsn(ALOAD, 2);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/reflect/UndeclaredThrowableException", "<init>",
                "(Ljava/lang/Throwable;)V");
        mv.visitInsn(ATHROW);
        mv.visitLabel(l5);
        mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        mv.visitInsn(RETURN);
        mv.visitMaxs(6, 3);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "unwrapResult", "()I", null, null);
        mv.visitCode();
        Label l0 = new Label();
        Label l1 = new Label();
        Label l2 = new Label();
        mv.visitTryCatchBlock(l0, l1, l2, "java/lang/Throwable");
        mv.visitLabel(l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, "org/qi4j/satisfiedBy/SomeMixin_Stub", "_instance",
                "Lorg/qi4j/spi/composite/CompositeInvoker;");
        mv.visitFieldInsn(GETSTATIC, "org/qi4j/satisfiedBy/SomeMixin_Stub", "m5", "Ljava/lang/reflect/Method;");
        mv.visitInsn(ACONST_NULL);
        mv.visitMethodInsn(INVOKEINTERFACE, "org/qi4j/spi/composite/CompositeInvoker", "invokeComposite",
                "(Ljava/lang/reflect/Method;[Ljava/lang/Object;)Ljava/lang/Object;");
        mv.visitTypeInsn(CHECKCAST, "java/lang/Integer");
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Integer", "intValue", "()I");
        mv.visitLabel(l1);
        mv.visitInsn(IRETURN);
        mv.visitLabel(l2);
        mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { "java/lang/Throwable" });
        mv.visitVarInsn(ASTORE, 1);
        mv.visitTypeInsn(NEW, "java/lang/reflect/UndeclaredThrowableException");
        mv.visitInsn(DUP);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/reflect/UndeclaredThrowableException", "<init>",
                "(Ljava/lang/Throwable;)V");
        mv.visitInsn(ATHROW);
        mv.visitMaxs(3, 2);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_STATIC, "<clinit>", "()V", null, null);
        mv.visitCode();
        Label l0 = new Label();
        Label l1 = new Label();
        Label l2 = new Label();
        mv.visitTryCatchBlock(l0, l1, l2, "java/lang/NoSuchMethodException");
        mv.visitLabel(l0);
        mv.visitLdcInsn(Type.getType("Lorg/qi4j/satisfiedBy/Other;"));
        mv.visitLdcInsn("other");
        mv.visitInsn(ICONST_0);
        mv.visitTypeInsn(ANEWARRAY, "java/lang/Class");
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", "getMethod",
                "(Ljava/lang/String;[Ljava/lang/Class;)Ljava/lang/reflect/Method;");
        mv.visitFieldInsn(PUTSTATIC, "org/qi4j/satisfiedBy/SomeMixin_Stub", "m1", "Ljava/lang/reflect/Method;");
        mv.visitLdcInsn(Type.getType("Lorg/qi4j/satisfiedBy/Other;"));
        mv.visitLdcInsn("foo");
        mv.visitInsn(ICONST_2);
        mv.visitTypeInsn(ANEWARRAY, "java/lang/Class");
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_0);
        mv.visitLdcInsn(Type.getType("Ljava/lang/String;"));
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_1);
        mv.visitFieldInsn(GETSTATIC, "java/lang/Integer", "TYPE", "Ljava/lang/Class;");
        mv.visitInsn(AASTORE);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", "getMethod",
                "(Ljava/lang/String;[Ljava/lang/Class;)Ljava/lang/reflect/Method;");
        mv.visitFieldInsn(PUTSTATIC, "org/qi4j/satisfiedBy/SomeMixin_Stub", "m2", "Ljava/lang/reflect/Method;");
        mv.visitLdcInsn(Type.getType("Lorg/qi4j/satisfiedBy/Other;"));
        mv.visitLdcInsn("bar");
        mv.visitIntInsn(BIPUSH, 11);
        mv.visitTypeInsn(ANEWARRAY, "java/lang/Class");
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_0);
        mv.visitFieldInsn(GETSTATIC, "java/lang/Double", "TYPE", "Ljava/lang/Class;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_1);
        mv.visitFieldInsn(GETSTATIC, "java/lang/Boolean", "TYPE", "Ljava/lang/Class;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_2);
        mv.visitFieldInsn(GETSTATIC, "java/lang/Float", "TYPE", "Ljava/lang/Class;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_3);
        mv.visitFieldInsn(GETSTATIC, "java/lang/Character", "TYPE", "Ljava/lang/Class;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_4);
        mv.visitFieldInsn(GETSTATIC, "java/lang/Integer", "TYPE", "Ljava/lang/Class;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_5);
        mv.visitFieldInsn(GETSTATIC, "java/lang/Long", "TYPE", "Ljava/lang/Class;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitIntInsn(BIPUSH, 6);
        mv.visitFieldInsn(GETSTATIC, "java/lang/Short", "TYPE", "Ljava/lang/Class;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitIntInsn(BIPUSH, 7);
        mv.visitFieldInsn(GETSTATIC, "java/lang/Byte", "TYPE", "Ljava/lang/Class;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitIntInsn(BIPUSH, 8);
        mv.visitLdcInsn(Type.getType("Ljava/lang/Double;"));
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitIntInsn(BIPUSH, 9);
        mv.visitLdcInsn(Type.getType("[Ljava/lang/Object;"));
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitIntInsn(BIPUSH, 10);
        mv.visitLdcInsn(Type.getType("[I"));
        mv.visitInsn(AASTORE);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", "getMethod",
                "(Ljava/lang/String;[Ljava/lang/Class;)Ljava/lang/reflect/Method;");
        mv.visitFieldInsn(PUTSTATIC, "org/qi4j/satisfiedBy/SomeMixin_Stub", "m3", "Ljava/lang/reflect/Method;");
        mv.visitLdcInsn(Type.getType("Lorg/qi4j/satisfiedBy/Other;"));
        mv.visitLdcInsn("multiEx");
        mv.visitInsn(ICONST_1);
        mv.visitTypeInsn(ANEWARRAY, "java/lang/Class");
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_0);
        mv.visitLdcInsn(Type.getType("Ljava/lang/String;"));
        mv.visitInsn(AASTORE);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", "getMethod",
                "(Ljava/lang/String;[Ljava/lang/Class;)Ljava/lang/reflect/Method;");
        mv.visitFieldInsn(PUTSTATIC, "org/qi4j/satisfiedBy/SomeMixin_Stub", "m4", "Ljava/lang/reflect/Method;");
        mv.visitLdcInsn(Type.getType("Lorg/qi4j/satisfiedBy/Other;"));
        mv.visitLdcInsn("unwrapResult");
        mv.visitInsn(ICONST_0);
        mv.visitTypeInsn(ANEWARRAY, "java/lang/Class");
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", "getMethod",
                "(Ljava/lang/String;[Ljava/lang/Class;)Ljava/lang/reflect/Method;");
        mv.visitFieldInsn(PUTSTATIC, "org/qi4j/satisfiedBy/SomeMixin_Stub", "m5", "Ljava/lang/reflect/Method;");
        mv.visitLabel(l1);
        Label l3 = new Label();
        mv.visitJumpInsn(GOTO, l3);
        mv.visitLabel(l2);
        mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { "java/lang/NoSuchMethodException" });
        mv.visitVarInsn(ASTORE, 0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/NoSuchMethodException", "printStackTrace", "()V");
        mv.visitLabel(l3);
        mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        mv.visitInsn(RETURN);
        mv.visitMaxs(6, 1);
        mv.visitEnd();
    }
    cw.visitEnd();

    return cw.toByteArray();
}

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;//from   w w  w.ja v  a 2s.  co m
    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();
}

From source file:org.sonar.java.bytecode.cfg.BytecodeListingParser.java

License:Open Source License

private static void visitLine(String[] words, MethodVisitor mv, Map<Integer, Label> labelIndexes) {
    // labels :/*w  w w.j  av a  2s .  c om*/
    String initWord = words[0];
    if (initWord.matches("L\\d+")) {
        mv.visitLabel(labelIndexes.computeIfAbsent(Integer.parseInt(initWord.substring(1)), k -> new Label()));
    }

    int opcode = Arrays.asList(Printer.OPCODES).indexOf(initWord);
    if (opcode == -1) {
        return;
    }
    if (NO_OPERAND_INSN.contains(opcode)) {
        mv.visitInsn(opcode);
    } else if (INT_INSN.contains(opcode)) {
        mv.visitIntInsn(opcode, Integer.parseInt(words[1]));
    } else if (VAR_INSN.contains(opcode)) {
        mv.visitVarInsn(opcode, Integer.parseInt(words[1]));
    } else if (TYPE_INSN.contains(opcode)) {
        mv.visitTypeInsn(opcode, words[1]);
    } else if (FIELD_INSN.contains(opcode)) {
        mv.visitFieldInsn(opcode, words[1], words[2], words[3]);
    } else if (METHOD_INSN.contains(opcode)) {
        // FIXME: interface flag is hardcoded.
        mv.visitMethodInsn(opcode, words[1], words[2], words[3], false);
    } else if (JUMP_INSN.contains(opcode)) {
        mv.visitJumpInsn(opcode,
                labelIndexes.computeIfAbsent(Integer.parseInt(words[1].substring(1)), k -> new Label()));
    } else if (opcode == IINC) {
        mv.visitIincInsn(Integer.parseInt(words[1]), Integer.parseInt(words[2]));
    }

}