public static void apply(ClassNode declaringClass) { injectInterface(declaringClass, MYBATIS_CONTRIBUTION_HANDLER_CNODE); // add field: // protected MybatisProvider this$MybatisProvider = DefaultMybatisProvider.instance FieldNode providerField = declaringClass.addField( MYBATIS_PROVIDER_FIELD_NAME, ACC_PRIVATE | ACC_SYNTHETIC, MYBATIS_PROVIDER_CNODE, defaultMybatisProviderInstance()); // add method: // MybatisProvider getMybatisProvider() { // return this$MybatisProvider // } injectMethod( declaringClass, new MethodNode( METHOD_GET_MYBATIS_PROVIDER, ACC_PUBLIC, MYBATIS_PROVIDER_CNODE, Parameter.EMPTY_ARRAY, NO_EXCEPTIONS, returns(field(providerField)))); // add method: // void setMybatisProvider(MybatisProvider provider) { // this$MybatisProvider = provider ?: DefaultMybatisProvider.instance // } injectMethod( declaringClass, new MethodNode( METHOD_SET_MYBATIS_PROVIDER, ACC_PUBLIC, ClassHelper.VOID_TYPE, params(param(MYBATIS_PROVIDER_CNODE, PROVIDER)), NO_EXCEPTIONS, block( ifs_no_return( cmp(var(PROVIDER), ConstantExpression.NULL), assigns(field(providerField), defaultMybatisProviderInstance()), assigns(field(providerField), var(PROVIDER)))))); for (MethodNode method : MYBATIS_CONTRIBUTION_HANDLER_CNODE.getMethods()) { if (Arrays.binarySearch(DELEGATING_METHODS, method.getName()) < 0) continue; List<Expression> variables = new ArrayList<Expression>(); Parameter[] parameters = new Parameter[method.getParameters().length]; for (int i = 0; i < method.getParameters().length; i++) { Parameter p = method.getParameters()[i]; parameters[i] = new Parameter(makeClassSafe(p.getType()), p.getName()); parameters[i].getType().setGenericsTypes(p.getType().getGenericsTypes()); variables.add(var(p.getName())); } ClassNode returnType = makeClassSafe(method.getReturnType()); returnType.setGenericsTypes(method.getReturnType().getGenericsTypes()); returnType.setGenericsPlaceHolder(method.getReturnType().isGenericsPlaceHolder()); MethodNode newMethod = new MethodNode( method.getName(), ACC_PUBLIC, returnType, parameters, NO_EXCEPTIONS, returns(call(field(providerField), method.getName(), args(variables)))); newMethod.setGenericsTypes(method.getGenericsTypes()); injectMethod(declaringClass, newMethod); } }