private void checkImplementsAndExtends(ClassNode node) {
ClassNode cn = node.getSuperClass();
if (cn.isInterface() && !node.isInterface()) {
addError(
"You are not allowed to extend the " + getDescription(cn) + ", use implements instead.",
node);
}
for (ClassNode anInterface : node.getInterfaces()) {
cn = anInterface;
if (!cn.isInterface()) {
addError(
"You are not allowed to implement the " + getDescription(cn) + ", use extends instead.",
node);
}
}
}
private void checkClassForAbstractAndFinal(ClassNode node) {
if (!isAbstract(node.getModifiers())) return;
if (!isFinal(node.getModifiers())) return;
if (node.isInterface()) {
addError(
"The " + getDescription(node) + " must not be final. It is by definition abstract.",
node);
} else {
addError("The " + getDescription(node) + " must not be both final and abstract.", node);
}
}
private static void writeGenericsBoundType(
StringBuffer ret, ClassNode printType, boolean writeInterfaceMarker) {
if (writeInterfaceMarker && printType.isInterface()) ret.append(":");
if (printType.equals(ClassHelper.OBJECT_TYPE) && printType.getGenericsTypes() != null) {
ret.append("T");
ret.append(printType.getGenericsTypes()[0].getName());
ret.append(";");
} else {
ret.append(getTypeDescription(printType, false));
addSubTypes(ret, printType.getGenericsTypes(), "<", ">");
if (!ClassHelper.isPrimitiveType(printType)) ret.append(";");
}
}
private void checkInterfaceFieldModifiers(FieldNode node) {
if (!currentClass.isInterface()) return;
if ((node.getModifiers() & (ACC_PUBLIC | ACC_STATIC | ACC_FINAL)) == 0
|| (node.getModifiers() & (ACC_PRIVATE | ACC_PROTECTED)) != 0) {
addError(
"The "
+ getDescription(node)
+ " is not 'public static final' but is defined in "
+ getDescription(currentClass)
+ ".",
node);
}
}
public static Set<ClassNode> getInterfacesAndSuperInterfaces(ClassNode type) {
Set<ClassNode> res = new HashSet<ClassNode>();
if (type.isInterface()) {
res.add(type);
return res;
}
ClassNode next = type;
while (next != null) {
Collections.addAll(res, next.getInterfaces());
next = next.getSuperClass();
}
return res;
}
private void visitClassNode(ClassNode cNode, List<PackageScopeTarget> value) {
String cName = cNode.getName();
if (cNode.isInterface() && value.size() != 1 && value.get(0) != PackageScopeTarget.CLASS) {
throw new RuntimeException(
"Error processing interface '"
+ cName
+ "'. "
+ MY_TYPE_NAME
+ " not allowed for interfaces except when targeting Class level.");
}
if (value.contains(groovy.transform.PackageScopeTarget.CLASS)) {
if (cNode.isSyntheticPublic()) revertVisibility(cNode);
else
throw new RuntimeException(
"Can't use "
+ MY_TYPE_NAME
+ " for class '"
+ cNode.getName()
+ "' which has explicit visibility.");
}
if (value.contains(groovy.transform.PackageScopeTarget.METHODS)) {
final List<MethodNode> mList = cNode.getMethods();
for (MethodNode mNode : mList) {
if (mNode.isSyntheticPublic()) revertVisibility(mNode);
}
}
if (value.contains(PackageScopeTarget.FIELDS)) {
final List<PropertyNode> pList = cNode.getProperties();
List<PropertyNode> foundProps = new ArrayList<PropertyNode>();
List<String> foundNames = new ArrayList<String>();
for (PropertyNode pNode : pList) {
foundProps.add(pNode);
foundNames.add(pNode.getName());
}
for (PropertyNode pNode : foundProps) {
pList.remove(pNode);
}
final List<FieldNode> fList = cNode.getFields();
for (FieldNode fNode : fList) {
if (foundNames.contains(fNode.getName())) {
revertVisibility(fNode);
}
}
}
}
private void printFields(PrintWriter out, ClassNode classNode) {
boolean isInterface = classNode.isInterface();
List<FieldNode> fields = classNode.getFields();
if (fields == null) return;
List<FieldNode> enumFields = new ArrayList<FieldNode>(fields.size());
List<FieldNode> normalFields = new ArrayList<FieldNode>(fields.size());
for (FieldNode field : fields) {
boolean isSynthetic = (field.getModifiers() & Opcodes.ACC_SYNTHETIC) != 0;
if (field.isEnum()) {
enumFields.add(field);
} else if (!isSynthetic) {
normalFields.add(field);
}
}
printEnumFields(out, enumFields);
for (FieldNode normalField : normalFields) {
printField(out, normalField, isInterface);
}
}
private void checkInterfaceMethodVisibility(ClassNode node) {
if (!node.isInterface()) return;
for (MethodNode method : node.getMethods()) {
if (method.isPrivate()) {
addError(
"Method '"
+ method.getName()
+ "' is private but should be public in "
+ getDescription(currentClass)
+ ".",
method);
} else if (method.isProtected()) {
addError(
"Method '"
+ method.getName()
+ "' is protected but should be public in "
+ getDescription(currentClass)
+ ".",
method);
}
}
}
public static boolean implementsInterfaceOrIsSubclassOf(
ClassNode type, ClassNode superOrInterface) {
boolean result =
type.equals(superOrInterface)
|| type.isDerivedFrom(superOrInterface)
|| type.implementsInterface(superOrInterface)
|| type == UNKNOWN_PARAMETER_TYPE;
if (result) {
return true;
}
if (superOrInterface instanceof WideningCategories.LowestUpperBoundClassNode) {
WideningCategories.LowestUpperBoundClassNode cn =
(WideningCategories.LowestUpperBoundClassNode) superOrInterface;
result = implementsInterfaceOrIsSubclassOf(type, cn.getSuperClass());
if (result) {
for (ClassNode interfaceNode : cn.getInterfaces()) {
result = type.implementsInterface(interfaceNode);
if (!result) break;
}
}
if (result) return true;
} else if (superOrInterface instanceof UnionTypeClassNode) {
UnionTypeClassNode union = (UnionTypeClassNode) superOrInterface;
for (ClassNode delegate : union.getDelegates()) {
if (implementsInterfaceOrIsSubclassOf(type, delegate)) return true;
}
}
if (type.isArray() && superOrInterface.isArray()) {
return implementsInterfaceOrIsSubclassOf(
type.getComponentType(), superOrInterface.getComponentType());
}
if (GROOVY_OBJECT_TYPE.equals(superOrInterface)
&& !type.isInterface()
&& isBeingCompiled(type)) {
return true;
}
return false;
}
private void checkMethodsForIncorrectModifiers(ClassNode cn) {
if (!cn.isInterface()) return;
for (MethodNode method : cn.getMethods()) {
if (method.isFinal()) {
addError(
"The "
+ getDescription(method)
+ " from "
+ getDescription(cn)
+ " must not be final. It is by definition abstract.",
method);
}
if (method.isStatic() && !isConstructor(method)) {
addError(
"The "
+ getDescription(method)
+ " from "
+ getDescription(cn)
+ " must not be static. Only fields may be static in an interface.",
method);
}
}
}
private void printMethod(PrintWriter out, ClassNode clazz, MethodNode methodNode) {
if (methodNode.getName().equals("<clinit>")) return;
if (methodNode.isPrivate() || !Utilities.isJavaIdentifier(methodNode.getName())) return;
if (methodNode.isSynthetic() && methodNode.getName().equals("$getStaticMetaClass")) return;
printAnnotations(out, methodNode);
if (!clazz.isInterface()) printModifiers(out, methodNode.getModifiers());
printGenericsBounds(out, methodNode.getGenericsTypes());
out.print(" ");
printType(out, methodNode.getReturnType());
out.print(" ");
out.print(methodNode.getName());
printParams(out, methodNode);
ClassNode[] exceptions = methodNode.getExceptions();
for (int i = 0; i < exceptions.length; i++) {
ClassNode exception = exceptions[i];
if (i == 0) {
out.print("throws ");
} else {
out.print(", ");
}
printType(out, exception);
}
if ((methodNode.getModifiers() & Opcodes.ACC_ABSTRACT) != 0) {
out.println(";");
} else {
out.print(" { ");
ClassNode retType = methodNode.getReturnType();
printReturn(out, retType);
out.println("}");
}
}
@Override
public void visit(ASTNode[] astNodes, SourceUnit source) {
if (!(astNodes[0] instanceof AnnotationNode) || !(astNodes[1] instanceof AnnotatedNode)) {
throw new RuntimeException("Internal error: wrong types: $node.class / $parent.class");
}
AnnotatedNode parent = (AnnotatedNode) astNodes[1];
AnnotationNode node = (AnnotationNode) astNodes[0];
if (!MY_TYPE.equals(node.getClassNode()) || !(parent instanceof ClassNode)) {
return;
}
ClassNode classNode = (ClassNode) parent;
if (classNode.isInterface() || Modifier.isAbstract(classNode.getModifiers())) {
return;
}
boolean junit3Test = isJunit3Test(classNode);
boolean spockTest = isSpockTest(classNode);
boolean isJunit = classNode.getName().endsWith("Tests");
if (!junit3Test && !spockTest && !isJunit) return;
Expression value = node.getMember("value");
ClassExpression ce;
if (value instanceof ClassExpression) {
ce = (ClassExpression) value;
testFor(classNode, ce);
} else {
if (!junit3Test) {
List<AnnotationNode> annotations = classNode.getAnnotations(MY_TYPE);
if (annotations.size() > 0)
return; // bail out, in this case it was already applied as a local transform
// no explicit class specified try by convention
String fileName = source.getName();
String className = GrailsResourceUtils.getClassName(new FileSystemResource(fileName));
if (className != null) {
boolean isSpock = className.endsWith("Spec");
String targetClassName = null;
if (isJunit) {
targetClassName = className.substring(0, className.indexOf("Tests"));
} else if (isSpock) {
targetClassName = className.substring(0, className.indexOf("Spec"));
}
if (targetClassName != null) {
Resource targetResource =
getResourceLocator().findResourceForClassName(targetClassName);
if (targetResource != null) {
try {
if (GrailsResourceUtils.isDomainClass(targetResource.getURL())) {
testFor(
classNode,
new ClassExpression(
new ClassNode(targetClassName, 0, ClassHelper.OBJECT_TYPE)));
} else {
for (String artefactType : artefactTypeToTestMap.keySet()) {
if (targetClassName.endsWith(artefactType)) {
testFor(
classNode,
new ClassExpression(
new ClassNode(targetClassName, 0, ClassHelper.OBJECT_TYPE)));
break;
}
}
}
} catch (IOException e) {
// ignore
}
}
}
}
}
}
}
@Override
public void makeGetPropertySite(
Expression receiver,
final String methodName,
final boolean safe,
final boolean implicitThis) {
Object dynamic =
receiver.getNodeMetaData(StaticCompilationMetadataKeys.RECEIVER_OF_DYNAMIC_PROPERTY);
if (dynamic != null) {
MethodNode target =
safe ? INVOKERHELPER_GETPROPERTYSAFE_METHOD : INVOKERHELPER_GETPROPERTY_METHOD;
MethodCallExpression mce =
new MethodCallExpression(
new ClassExpression(INVOKERHELPER_TYPE),
target.getName(),
new ArgumentListExpression(receiver, new ConstantExpression(methodName)));
mce.setSafe(false);
mce.setImplicitThis(false);
mce.setMethodTarget(target);
mce.visit(controller.getAcg());
return;
}
TypeChooser typeChooser = controller.getTypeChooser();
ClassNode classNode = controller.getClassNode();
ClassNode receiverType =
(ClassNode) receiver.getNodeMetaData(StaticCompilationMetadataKeys.PROPERTY_OWNER);
if (receiverType == null) {
receiverType = typeChooser.resolveType(receiver, classNode);
}
Object type = receiver.getNodeMetaData(StaticTypesMarker.INFERRED_TYPE);
if (type == null && receiver instanceof VariableExpression) {
Variable variable = ((VariableExpression) receiver).getAccessedVariable();
if (variable instanceof Expression) {
type = ((Expression) variable).getNodeMetaData(StaticTypesMarker.INFERRED_TYPE);
}
}
if (type != null) {
// in case a "flow type" is found, it is preferred to use it instead of
// the declaration type
receiverType = (ClassNode) type;
}
boolean isClassReceiver = false;
if (isClassClassNodeWrappingConcreteType(receiverType)) {
isClassReceiver = true;
receiverType = receiverType.getGenericsTypes()[0].getType();
}
MethodVisitor mv = controller.getMethodVisitor();
if (receiverType.isArray() && methodName.equals("length")) {
receiver.visit(controller.getAcg());
ClassNode arrayGetReturnType = typeChooser.resolveType(receiver, classNode);
controller.getOperandStack().doGroovyCast(arrayGetReturnType);
mv.visitInsn(ARRAYLENGTH);
controller.getOperandStack().replace(int_TYPE);
return;
} else if ((receiverType.implementsInterface(COLLECTION_TYPE)
|| COLLECTION_TYPE.equals(receiverType))
&& ("size".equals(methodName) || "length".equals(methodName))) {
MethodCallExpression expr =
new MethodCallExpression(receiver, "size", ArgumentListExpression.EMPTY_ARGUMENTS);
expr.setMethodTarget(COLLECTION_SIZE_METHOD);
expr.setImplicitThis(implicitThis);
expr.setSafe(safe);
expr.visit(controller.getAcg());
return;
}
if (makeGetPropertyWithGetter(receiver, receiverType, methodName, safe, implicitThis)) return;
if (makeGetField(
receiver,
receiverType,
methodName,
implicitThis,
samePackages(receiverType.getPackageName(), classNode.getPackageName()))) return;
if (receiverType.isEnum()) {
mv.visitFieldInsn(
GETSTATIC,
BytecodeHelper.getClassInternalName(receiverType),
methodName,
BytecodeHelper.getTypeDescription(receiverType));
controller.getOperandStack().push(receiverType);
return;
}
if (receiver instanceof ClassExpression) {
if (makeGetField(
receiver,
receiver.getType(),
methodName,
implicitThis,
samePackages(receiver.getType().getPackageName(), classNode.getPackageName()))) return;
if (makeGetPropertyWithGetter(receiver, receiver.getType(), methodName, safe, implicitThis))
return;
if (makeGetPrivateFieldWithBridgeMethod(
receiver, receiver.getType(), methodName, safe, implicitThis)) return;
}
if (isClassReceiver) {
// we are probably looking for a property of the class
if (makeGetPropertyWithGetter(receiver, CLASS_Type, methodName, safe, implicitThis)) return;
if (makeGetField(receiver, CLASS_Type, methodName, false, true)) return;
}
if (makeGetPrivateFieldWithBridgeMethod(receiver, receiverType, methodName, safe, implicitThis))
return;
// GROOVY-5580, it is still possible that we're calling a superinterface property
String getterName = "get" + MetaClassHelper.capitalize(methodName);
if (receiverType.isInterface()) {
Set<ClassNode> allInterfaces = receiverType.getAllInterfaces();
MethodNode getterMethod = null;
for (ClassNode anInterface : allInterfaces) {
getterMethod = anInterface.getGetterMethod(getterName);
if (getterMethod != null) break;
}
// GROOVY-5585
if (getterMethod == null) {
getterMethod = OBJECT_TYPE.getGetterMethod(getterName);
}
if (getterMethod != null) {
MethodCallExpression call =
new MethodCallExpression(receiver, getterName, ArgumentListExpression.EMPTY_ARGUMENTS);
call.setMethodTarget(getterMethod);
call.setImplicitThis(false);
call.setSourcePosition(receiver);
call.visit(controller.getAcg());
return;
}
}
// GROOVY-5568, we would be facing a DGM call, but instead of foo.getText(), have foo.text
List<MethodNode> methods =
findDGMMethodsByNameAndArguments(
controller.getSourceUnit().getClassLoader(),
receiverType,
getterName,
ClassNode.EMPTY_ARRAY);
if (!methods.isEmpty()) {
List<MethodNode> methodNodes = chooseBestMethod(receiverType, methods, ClassNode.EMPTY_ARRAY);
if (methodNodes.size() == 1) {
MethodNode getter = methodNodes.get(0);
MethodCallExpression call =
new MethodCallExpression(receiver, getterName, ArgumentListExpression.EMPTY_ARGUMENTS);
call.setMethodTarget(getter);
call.setImplicitThis(false);
call.setSourcePosition(receiver);
call.visit(controller.getAcg());
return;
}
}
boolean isStaticProperty =
receiver instanceof ClassExpression
&& (receiverType.isDerivedFrom(receiver.getType())
|| receiverType.implementsInterface(receiver.getType()));
if (!isStaticProperty) {
if (receiverType.implementsInterface(MAP_TYPE) || MAP_TYPE.equals(receiverType)) {
// for maps, replace map.foo with map.get('foo')
writeMapDotProperty(receiver, methodName, mv, safe);
return;
}
if (receiverType.implementsInterface(LIST_TYPE) || LIST_TYPE.equals(receiverType)) {
writeListDotProperty(receiver, methodName, mv, safe);
return;
}
}
controller
.getSourceUnit()
.addError(
new SyntaxException(
"Access to "
+ (receiver instanceof ClassExpression ? receiver.getType() : receiverType)
.toString(false)
+ "#"
+ methodName
+ " is forbidden",
receiver.getLineNumber(),
receiver.getColumnNumber(),
receiver.getLastLineNumber(),
receiver.getLastColumnNumber()));
controller.getMethodVisitor().visitInsn(ACONST_NULL);
controller.getOperandStack().push(OBJECT_TYPE);
}
private List getPrimaryClassNodes(boolean sort) {
if (sort == true) {
List<ModuleNode> sortedModules = this.ast.getSortedModules();
if (sortedModules != null) {
return sortedModules;
}
}
// FIXASC (groovychange) rewritten
/*old{
List unsorted = new ArrayList();
Iterator modules = this.ast.getModules().iterator();
while (modules.hasNext()) {
ModuleNode module = (ModuleNode) modules.next();
Iterator classNodes = module.getClasses().iterator();
while (classNodes.hasNext()) {
ClassNode classNode = (ClassNode) classNodes.next();
unsorted.add(classNode);
}
}
*/
// new
List<ClassNode> unsorted = new ArrayList<ClassNode>();
for (ModuleNode module : this.ast.getModules()) {
unsorted.addAll(module.getClasses());
}
// FIXASC (groovychange) end
if (!sort) return unsorted;
// GRECLIPSE: start: rewritten sort algorithm
/*old{
int[] indexClass = new int[unsorted.size()];
int[] indexInterface = new int[unsorted.size()];
{
int i = 0;
for (Iterator<ClassNode> iter = unsorted.iterator(); iter.hasNext(); i++) {
ClassNode element = iter.next();
if (element.isInterface()) {
indexInterface[i] = getSuperInterfaceCount(element);
indexClass[i] = -1;
} else {
indexClass[i] = getSuperClassCount(element);
indexInterface[i] = -1;
}
}
}
List<ClassNode> sorted = getSorted(indexInterface, unsorted);
sorted.addAll(getSorted(indexClass, unsorted));
*/
// newcode:
// Sort them by how many types are in their hierarchy, but all interfaces first.
// Algorithm:
// Create a list of integers. Each integer captures the index into the unsorted
// list (bottom 16bits) and the count of how many types are in that types
// hierarchy (top 16bits). For classes the count is augmented by 2000 so that
// when sorting the classes will come out after the interfaces.
// This list of integers is sorted. We then just go through it and for the
// lower 16bits of each entry (0xffff) that is the index of the next value to
// pull from the unsorted list and put into the sorted list.
// Will break down if more than 2000 interfaces in the type hierarchy for an
// individual type, or a project contains > 65535 files... but if you've got
// that kind of setup, you have other problems...
List<Integer> countIndexPairs = new ArrayList<Integer>();
{
int i = 0;
for (Iterator iter = unsorted.iterator(); iter.hasNext(); i++) {
ClassNode node = (ClassNode) iter.next();
if (node.isInterface()) {
countIndexPairs.add((getSuperInterfaceCount(node) << 16) + i);
} else {
countIndexPairs.add(((getSuperClassCount(node) + 2000) << 16) + i);
}
}
}
Collections.sort(countIndexPairs);
List sorted = new ArrayList();
for (int i : countIndexPairs) {
sorted.add(unsorted.get(i & 0xffff));
}
this.ast.setSortedModules(sorted);
// end
return sorted;
}
private String getDescription(ClassNode node) {
return (node.isInterface() ? "interface" : "class") + " '" + node.getName() + "'";
}
private void printClassContents(PrintWriter out, ClassNode classNode)
throws FileNotFoundException {
if (classNode instanceof InnerClassNode && ((InnerClassNode) classNode).isAnonymous()) {
// if it is an anonymous inner class, don't generate the stub code for it.
return;
}
try {
Verifier verifier =
new Verifier() {
public void addCovariantMethods(ClassNode cn) {}
protected void addTimeStamp(ClassNode node) {}
protected void addInitialization(ClassNode node) {}
protected void addPropertyMethod(MethodNode method) {
doAddMethod(method);
}
protected void addReturnIfNeeded(MethodNode node) {}
protected void addMethod(
ClassNode node,
boolean shouldBeSynthetic,
String name,
int modifiers,
ClassNode returnType,
Parameter[] parameters,
ClassNode[] exceptions,
Statement code) {
doAddMethod(
new MethodNode(name, modifiers, returnType, parameters, exceptions, code));
}
protected void addConstructor(
Parameter[] newParams, ConstructorNode ctor, Statement code, ClassNode node) {
if (code instanceof ExpressionStatement) { // GROOVY-4508
Statement temp = code;
code = new BlockStatement();
((BlockStatement) code).addStatement(temp);
}
ConstructorNode ctrNode =
new ConstructorNode(ctor.getModifiers(), newParams, ctor.getExceptions(), code);
ctrNode.setDeclaringClass(node);
constructors.add(ctrNode);
}
protected void addDefaultParameters(DefaultArgsAction action, MethodNode method) {
final Parameter[] parameters = method.getParameters();
final Expression[] saved = new Expression[parameters.length];
for (int i = 0; i < parameters.length; i++) {
if (parameters[i].hasInitialExpression())
saved[i] = parameters[i].getInitialExpression();
}
super.addDefaultParameters(action, method);
for (int i = 0; i < parameters.length; i++) {
if (saved[i] != null) parameters[i].setInitialExpression(saved[i]);
}
}
private void doAddMethod(MethodNode method) {
String sig = method.getTypeDescriptor();
if (propertyMethodsWithSigs.containsKey(sig)) return;
propertyMethods.add(method);
propertyMethodsWithSigs.put(sig, method);
}
@Override
protected void addDefaultConstructor(ClassNode node) {
// not required for stub generation
}
};
verifier.visitClass(classNode);
currentModule = classNode.getModule();
boolean isInterface = classNode.isInterface();
boolean isEnum = (classNode.getModifiers() & Opcodes.ACC_ENUM) != 0;
boolean isAnnotationDefinition = classNode.isAnnotationDefinition();
printAnnotations(out, classNode);
printModifiers(
out,
classNode.getModifiers()
& ~(isInterface ? Opcodes.ACC_ABSTRACT : 0)
& ~(isEnum ? Opcodes.ACC_FINAL : 0));
if (isInterface) {
if (isAnnotationDefinition) {
out.print("@");
}
out.print("interface ");
} else if (isEnum) {
out.print("enum ");
} else {
out.print("class ");
}
String className = classNode.getNameWithoutPackage();
if (classNode instanceof InnerClassNode)
className = className.substring(className.lastIndexOf("$") + 1);
out.println(className);
printGenericsBounds(out, classNode, true);
ClassNode superClass = classNode.getUnresolvedSuperClass(false);
if (!isInterface && !isEnum) {
out.print(" extends ");
printType(out, superClass);
}
ClassNode[] interfaces = classNode.getInterfaces();
if (interfaces != null && interfaces.length > 0 && !isAnnotationDefinition) {
if (isInterface) {
out.println(" extends");
} else {
out.println(" implements");
}
for (int i = 0; i < interfaces.length - 1; ++i) {
out.print(" ");
printType(out, interfaces[i]);
out.print(",");
}
out.print(" ");
printType(out, interfaces[interfaces.length - 1]);
}
out.println(" {");
printFields(out, classNode);
printMethods(out, classNode, isEnum);
for (Iterator<InnerClassNode> inner = classNode.getInnerClasses(); inner.hasNext(); ) {
// GROOVY-4004: Clear the methods from the outer class so that they don't get duplicated in
// inner ones
propertyMethods.clear();
propertyMethodsWithSigs.clear();
constructors.clear();
printClassContents(out, inner.next());
}
out.println("}");
} finally {
propertyMethods.clear();
propertyMethodsWithSigs.clear();
constructors.clear();
currentModule = null;
}
}