/**
* Snoops through the declaring class and all parents looking for methods
*
* <ul>
* <li><code>public String getMessage(java.lang.String)</code>
* <li><code>public String getMessage(java.lang.String, java.util.Locale)</code>
* <li><code>public String getMessage(java.lang.String, java.lang.Object[])</code>
* <li><code>public String getMessage(java.lang.String, java.lang.Object[], java.util.Locale)
* </code>
* <li><code>public String getMessage(java.lang.String, java.util.List)</code>
* <li><code>public String getMessage(java.lang.String, java.util.List, java.util.Locale)</code>
* <li><code>public String getMessage(java.lang.String, java.util.Map)</code>
* <li><code>public String getMessage(java.lang.String, java.util.Map, java.util.Locale)</code>
* <li><code>public String getMessage(java.lang.String, java.lang.String)</code>
* <li><code>public String getMessage(java.lang.String, java.lang.String, java.util.Locale)
* </code>
* <li><code>public String getMessage(java.lang.String, java.lang.Object[], java.lang.String)
* </code>
* <li><code>
* public String getMessage(java.lang.String, java.lang.Object[], java.lang.String, java.util.Locale)
* </code>
* <li><code>public String getMessage(java.lang.String, java.util.List, java.lang.String)</code>
* <li><code>
* public String getMessage(java.lang.String, java.util.List, java.lang.String, java.util.Locale)
* </code>
* <li><code>public String getMessage(java.lang.String, java.util.Map, java.lang.String)</code>
* <li><code>
* public String getMessage(java.lang.String, java.util.Map, java.lang.String, java.util.Locale)
* </code>
* </ul>
*
* If any are defined all must be defined or a compilation error results.
*
* @param declaringClass the class to search
* @param sourceUnit the source unit, for error reporting. {@code @NotNull}.
* @return true if property change support should be added
*/
protected static boolean needsMessageSource(ClassNode declaringClass, SourceUnit sourceUnit) {
boolean found = false;
ClassNode consideredClass = declaringClass;
while (consideredClass != null) {
for (MethodNode method : consideredClass.getMethods()) {
// just check length, MOP will match it up
found = method.getName().equals(METHOD_GET_MESSAGE) && method.getParameters().length == 1;
found |= method.getName().equals(METHOD_GET_MESSAGE) && method.getParameters().length == 2;
found |= method.getName().equals(METHOD_GET_MESSAGE) && method.getParameters().length == 3;
found |= method.getName().equals(METHOD_GET_MESSAGE) && method.getParameters().length == 4;
if (found) return false;
}
consideredClass = consideredClass.getSuperClass();
}
if (found) {
sourceUnit
.getErrorCollector()
.addErrorAndContinue(
new SimpleMessage(
"@MessageSourceAware cannot be processed on "
+ declaringClass.getName()
+ " because some but not all of variants of getMessage() were declared in the current class or super classes.",
sourceUnit));
return false;
}
return true;
}
@Override
protected ClassNode createClosureClass(final ClosureExpression expression, final int mods) {
ClassNode closureClass = super.createClosureClass(expression, mods);
List<MethodNode> methods = closureClass.getDeclaredMethods("call");
List<MethodNode> doCall = closureClass.getMethods("doCall");
if (doCall.size() != 1) {
throw new GroovyBugError(
"Expected to find one (1) doCall method on generated closure, but found "
+ doCall.size());
}
MethodNode doCallMethod = doCall.get(0);
if (methods.isEmpty() && doCallMethod.getParameters().length == 1) {
createDirectCallMethod(closureClass, doCallMethod);
}
MethodTargetCompletionVisitor visitor = new MethodTargetCompletionVisitor(doCallMethod);
Object dynamic = expression.getNodeMetaData(StaticTypesMarker.DYNAMIC_RESOLUTION);
if (dynamic != null) {
doCallMethod.putNodeMetaData(StaticTypesMarker.DYNAMIC_RESOLUTION, dynamic);
}
for (MethodNode method : methods) {
visitor.visitMethod(method);
}
closureClass.putNodeMetaData(StaticCompilationMetadataKeys.STATIC_COMPILE_NODE, Boolean.TRUE);
return closureClass;
}
public static List<MethodNode> getAllMethods(ClassNode type) {
ClassNode node = type;
List<MethodNode> result = new ArrayList<MethodNode>();
while (node != null) {
result.addAll(node.getMethods());
node = node.getSuperClass();
}
return result;
}
private void checkRepetitiveMethod(MethodNode node) {
if (isConstructor(node)) return;
for (MethodNode method : currentClass.getMethods(node.getName())) {
if (method == node) continue;
if (!method.getDeclaringClass().equals(node.getDeclaringClass())) continue;
Parameter[] p1 = node.getParameters();
Parameter[] p2 = method.getParameters();
if (p1.length != p2.length) continue;
addErrorIfParamsAndReturnTypeEqual(p2, p1, node, method);
}
}
private void checkMethodsForOverridingFinal(ClassNode cn) {
for (MethodNode method : cn.getMethods()) {
Parameter[] params = method.getParameters();
for (MethodNode superMethod : cn.getSuperClass().getMethods(method.getName())) {
Parameter[] superParams = superMethod.getParameters();
if (!hasEqualParameterTypes(params, superParams)) continue;
if (!superMethod.isFinal()) break;
addInvalidUseOfFinalError(method, params, superMethod.getDeclaringClass());
return;
}
}
}
/**
* Tests whether the ClassNode implements the specified method name
*
* @param classNode The ClassNode
* @param methodName The method name
* @param argTypes
* @return True if it implements the method
*/
private static boolean implementsMethod(
ClassNode classNode, String methodName, Class[] argTypes) {
List methods = classNode.getMethods();
for (Iterator i = methods.iterator(); i.hasNext(); ) {
MethodNode mn = (MethodNode) i.next();
final boolean isZeroArg = (argTypes == null || argTypes.length == 0);
boolean methodMatch = mn.getName().equals(methodName) && isZeroArg;
if (methodMatch) return true;
// TODO Implement further parameter analysis
}
return false;
}
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);
}
}
}
}
public MethodNode tryFindPossibleMethod(String name, Expression arguments) {
int count = 0;
if (arguments instanceof TupleExpression) {
TupleExpression tuple = (TupleExpression) arguments;
// TODO this won't strictly be true when using list expansion in argument calls
count = tuple.getExpressions().size();
} else return null;
MethodNode res = null;
ClassNode node = this;
TupleExpression args = (TupleExpression) arguments;
do {
for (MethodNode method : node.getMethods(name)) {
if (method.getParameters().length == count) {
boolean match = true;
for (int i = 0; i != count; ++i)
if (!args.getType().isDerivedFrom(method.getParameters()[i].getType())) {
match = false;
break;
}
if (match) {
if (res == null) res = method;
else {
if (res.getParameters().length != count) return null;
if (node.equals(this)) return null;
match = true;
for (int i = 0; i != count; ++i)
if (!res.getParameters()[i].getType().equals(method.getParameters()[i].getType())) {
match = false;
break;
}
if (!match) return null;
}
}
}
}
node = node.getSuperClass();
} while (node != null);
return res;
}
public static void addDelegateInstanceMethods(
ClassNode supportedSuperType,
ClassNode classNode,
ClassNode delegateNode,
Expression delegateInstance) {
while (!delegateNode.equals(AbstractGrailsArtefactTransformer.OBJECT_CLASS)) {
List<MethodNode> declaredMethods = delegateNode.getMethods();
for (MethodNode declaredMethod : declaredMethods) {
if (isConstructorMethod(declaredMethod)) {
addDelegateConstructor(classNode, declaredMethod);
} else if (isCandidateInstanceMethod(supportedSuperType, declaredMethod)) {
addDelegateInstanceMethod(classNode, delegateInstance, declaredMethod);
}
}
delegateNode = delegateNode.getSuperClass();
}
}
private void checkOverloadingPrivateAndPublic(MethodNode node) {
if (isConstructor(node)) return;
boolean hasPrivate = false;
boolean hasPublic = false;
for (MethodNode method : currentClass.getMethods(node.getName())) {
if (method == node) continue;
if (!method.getDeclaringClass().equals(node.getDeclaringClass())) continue;
if (method.isPublic() || method.isProtected()) {
hasPublic = true;
} else {
hasPrivate = true;
}
}
if (hasPrivate && hasPublic) {
addError(
"Mixing private and public/protected methods of the same name causes multimethods to be disabled and is forbidden to avoid surprising behaviour. Renaming the private methods will solve the problem.",
node);
}
}
private void printMethods(PrintWriter out, ClassNode classNode, boolean isEnum) {
if (!isEnum) printConstructors(out, classNode);
@SuppressWarnings("unchecked")
List<MethodNode> methods = (List) propertyMethods.clone();
methods.addAll(classNode.getMethods());
for (MethodNode method : methods) {
if (isEnum && method.isSynthetic()) {
// skip values() method and valueOf(String)
String name = method.getName();
Parameter[] params = method.getParameters();
if (name.equals("values") && params.length == 0) continue;
if (name.equals("valueOf")
&& params.length == 1
&& params[0].getType().equals(ClassHelper.STRING_TYPE)) {
continue;
}
}
printMethod(out, classNode, method);
}
}
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);
}
}
}
protected static boolean needsMybatisContribution(
ClassNode declaringClass, SourceUnit sourceUnit) {
boolean found1 = false, found2 = false, found3 = false, found4 = false;
ClassNode consideredClass = declaringClass;
while (consideredClass != null) {
for (MethodNode method : consideredClass.getMethods()) {
// just check length, MOP will match it up
found1 =
method.getName().equals(METHOD_WITH_SQL_SESSION) && method.getParameters().length == 1;
found2 =
method.getName().equals(METHOD_WITH_SQL_SESSION) && method.getParameters().length == 2;
found3 =
method.getName().equals(METHOD_SET_MYBATIS_PROVIDER)
&& method.getParameters().length == 1;
found4 =
method.getName().equals(METHOD_GET_MYBATIS_PROVIDER)
&& method.getParameters().length == 0;
if (found1 && found2 && found3 && found4) {
return false;
}
}
consideredClass = consideredClass.getSuperClass();
}
if (found1 || found2 || found3 || found4) {
sourceUnit
.getErrorCollector()
.addErrorAndContinue(
new SimpleMessage(
"@MybatisAware cannot be processed on "
+ declaringClass.getName()
+ " because some but not all of methods from "
+ MybatisContributionHandler.class.getName()
+ " were declared in the current class or super classes.",
sourceUnit));
return false;
}
return true;
}
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 Variable findClassMember(ClassNode cn, String name) {
if (cn == null) return null;
if (cn.isScript()) {
return new DynamicVariable(name, false);
}
for (FieldNode fn : cn.getFields()) {
if (fn.getName().equals(name)) return fn;
}
for (MethodNode mn : cn.getMethods()) {
String pName = getPropertyName(mn);
// GRECLIPSE: start
// must set the declaringClass
/*old{
if (pName != null && pName.equals(name))
return new PropertyNode(pName, mn.getModifiers(), getPropertyType(mn), cn, null, null, null);
*/
// newcode
if (pName != null && pName.equals(name)) {
PropertyNode property =
new PropertyNode(pName, mn.getModifiers(), getPropertyType(mn), cn, null, null, null);
property.setDeclaringClass(cn);
property.getField().setDeclaringClass(cn);
return property;
}
// GRECLIPSE: end
}
for (PropertyNode pn : cn.getProperties()) {
if (pn.getName().equals(name)) return pn;
}
Variable ret = findClassMember(cn.getSuperClass(), name);
if (ret != null) return ret;
return findClassMember(cn.getOuterClass(), name);
}
private boolean anyMethodSkip(final ClassNode node) {
for (MethodNode methodNode : node.getMethods()) {
if (isSkipMode(methodNode)) return true;
}
return false;
}
public static void removeMethod(ClassNode declaringClass, MethodNode methodNode) {
declaringClass.getMethods().remove(methodNode);
declaringClass.getDeclaredMethods(methodNode.getName()).clear();
}
private void checkMethodsForWeakerAccess(ClassNode cn) {
for (MethodNode method : cn.getMethods()) {
checkMethodForWeakerAccessPrivileges(method, cn);
}
}
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);
}
}