@Nullable private String[] getParameterNames(List<KParameter> parameters) { List<KParameter> filteredParameters = parameters .stream() // Extension receivers of extension methods must be included as they appear as normal method parameters in Java .filter(p -> KParameter.Kind.VALUE.equals(p.getKind()) || KParameter.Kind.EXTENSION_RECEIVER.equals(p.getKind())) .collect(Collectors.toList()); String[] parameterNames = new String[filteredParameters.size()]; for (int i = 0; i < filteredParameters.size(); i++) { KParameter parameter = filteredParameters.get(i); // extension receivers are not explicitly named, but require a name for Java interoperability // $receiver is not a valid Kotlin identifier, but valid in Java, so it can be used here String name = KParameter.Kind.EXTENSION_RECEIVER.equals(parameter.getKind()) ? "$receiver" : parameter.getName(); if (name == null) { return null; } parameterNames[i] = name; } return parameterNames; }
@Nullable private String[] getParameterNames(List<KParameter> parameters) { List<KParameter> filteredParameters = parameters .stream() // Extension receivers of extension methods must be included as they appear as normal method parameters in Java .filter(p -> KParameter.Kind.VALUE.equals(p.getKind()) || KParameter.Kind.EXTENSION_RECEIVER.equals(p.getKind())) .collect(Collectors.toList()); String[] parameterNames = new String[filteredParameters.size()]; for (int i = 0; i < filteredParameters.size(); i++) { KParameter parameter = filteredParameters.get(i); // extension receivers are not explicitly named, but require a name for Java interoperability // $receiver is not a valid Kotlin identifier, but valid in Java, so it can be used here String name = KParameter.Kind.EXTENSION_RECEIVER.equals(parameter.getKind()) ? "$receiver" : parameter.getName(); if (name == null) { return null; } parameterNames[i] = name; } return parameterNames; }
@Nullable private String[] getParameterNames(List<KParameter> parameters) { List<KParameter> filteredParameters = parameters .stream() // Extension receivers of extension methods must be included as they appear as normal method parameters in Java .filter(p -> KParameter.Kind.VALUE.equals(p.getKind()) || KParameter.Kind.EXTENSION_RECEIVER.equals(p.getKind())) .collect(Collectors.toList()); String[] parameterNames = new String[filteredParameters.size()]; for (int i = 0; i < filteredParameters.size(); i++) { KParameter parameter = filteredParameters.get(i); // extension receivers are not explicitly named, but require a name for Java interoperability // $receiver is not a valid Kotlin identifier, but valid in Java, so it can be used here String name = KParameter.Kind.EXTENSION_RECEIVER.equals(parameter.getKind()) ? "$receiver" : parameter.getName(); if (name == null) { return null; } parameterNames[i] = name; } return parameterNames; }
@Nullable private String[] getParameterNames(List<KParameter> parameters) { List<KParameter> filteredParameters = parameters .stream() // Extension receivers of extension methods must be included as they appear as normal method parameters in Java .filter(p -> KParameter.Kind.VALUE.equals(p.getKind()) || KParameter.Kind.EXTENSION_RECEIVER.equals(p.getKind())) .collect(Collectors.toList()); String[] parameterNames = new String[filteredParameters.size()]; for (int i = 0; i < filteredParameters.size(); i++) { KParameter parameter = filteredParameters.get(i); // extension receivers are not explicitly named, but require a name for Java interoperability // $receiver is not a valid Kotlin identifier, but valid in Java, so it can be used here String name = KParameter.Kind.EXTENSION_RECEIVER.equals(parameter.getKind()) ? "$receiver" : parameter.getName(); if (name == null) { return null; } parameterNames[i] = name; } return parameterNames; }
private static <T> Map<KParameter, Object> getCallArgs(KCallable<?> callable, PersistentProperty<?> property, T bean, @Nullable Object value) { Map<KParameter, Object> args = new LinkedHashMap<>(2, 1); List<KParameter> parameters = callable.getParameters(); for (KParameter parameter : parameters) { if (parameter.getKind() == Kind.INSTANCE) { args.put(parameter, bean); } if (parameter.getKind() == Kind.VALUE && parameter.getName() != null && parameter.getName().equals(property.getName())) { args.put(parameter, value); } } return args; }
@SuppressWarnings("unchecked") private static Optional<Method> findPublicCopyMethod(Method defaultKotlinMethod) { Class<?> type = defaultKotlinMethod.getDeclaringClass(); KClass<?> kotlinClass = JvmClassMappingKt.getKotlinClass(type); KFunction<?> primaryConstructor = KClasses.getPrimaryConstructor(kotlinClass); if (primaryConstructor == null) { return Optional.empty(); } List<KParameter> constructorArguments = primaryConstructor.getParameters() // .stream() // .filter(it -> it.getKind() == Kind.VALUE) // .collect(Collectors.toList()); return Arrays.stream(type.getDeclaredMethods()).filter(it -> it.getName().equals("copy") // && !it.isSynthetic() // && !Modifier.isStatic(it.getModifiers()) // && it.getReturnType().equals(type) // && it.getParameterCount() == constructorArguments.size()) // .filter(it -> { KFunction<?> kotlinFunction = ReflectJvmMapping.getKotlinFunction(it); if (kotlinFunction == null) { return false; } return parameterMatches(constructorArguments, kotlinFunction); }).findFirst(); }
if (parameter.getKind() == Kind.VALUE) { index++;
private static boolean parameterMatches(List<KParameter> constructorArguments, KFunction<?> kotlinFunction) { boolean foundInstance = false; int constructorArgIndex = 0; for (KParameter parameter : kotlinFunction.getParameters()) { if (parameter.getKind() == Kind.INSTANCE) { foundInstance = true; continue; } if (constructorArguments.size() <= constructorArgIndex) { return false; } KParameter constructorParameter = constructorArguments.get(constructorArgIndex); if (!constructorParameter.getName().equals(parameter.getName()) || !constructorParameter.getType().equals(parameter.getType())) { return false; } constructorArgIndex++; } return foundInstance; }
/** * Check whether the specified {@link MethodParameter} represents a nullable Kotlin type or an * optional parameter (with a default value in the Kotlin declaration). */ public static boolean isOptional(MethodParameter param) { Method method = param.getMethod(); Constructor<?> ctor = param.getConstructor(); int index = param.getParameterIndex(); if (method != null && index == -1) { KFunction<?> function = ReflectJvmMapping.getKotlinFunction(method); return (function != null && function.getReturnType().isMarkedNullable()); } else { KFunction<?> function = null; if (method != null) { function = ReflectJvmMapping.getKotlinFunction(method); } else if (ctor != null) { function = ReflectJvmMapping.getKotlinFunction(ctor); } if (function != null) { List<KParameter> parameters = function.getParameters(); KParameter parameter = parameters .stream() .filter(p -> KParameter.Kind.VALUE.equals(p.getKind())) .collect(Collectors.toList()) .get(index); return (parameter.getType().isMarkedNullable() || parameter.isOptional()); } } return false; }