/**
* This method is used to add "bridge" methods for private methods of an inner/outer class, so
* that the outer class is capable of calling them. It does basically the same job as access$000
* like methods in Java.
*
* @param node an inner/outer class node for which to generate bridge methods
*/
@SuppressWarnings("unchecked")
private void addPrivateBridgeMethods(final ClassNode node) {
Set<ASTNode> accessedMethods =
(Set<ASTNode>) node.getNodeMetaData(StaticTypesMarker.PV_METHODS_ACCESS);
if (accessedMethods == null) return;
List<MethodNode> methods = new ArrayList<MethodNode>(node.getAllDeclaredMethods());
Map<MethodNode, MethodNode> privateBridgeMethods =
(Map<MethodNode, MethodNode>) node.getNodeMetaData(PRIVATE_BRIDGE_METHODS);
if (privateBridgeMethods != null) {
// private bridge methods already added
return;
}
privateBridgeMethods = new HashMap<MethodNode, MethodNode>();
int i = -1;
final int access = Opcodes.ACC_STATIC | Opcodes.ACC_PUBLIC | Opcodes.ACC_SYNTHETIC;
for (MethodNode method : methods) {
if (accessedMethods.contains(method)) {
i++;
Parameter[] methodParameters = method.getParameters();
Parameter[] newParams = new Parameter[methodParameters.length + 1];
System.arraycopy(methodParameters, 0, newParams, 1, methodParameters.length);
newParams[0] = new Parameter(node.getPlainNodeReference(), "$that");
Expression arguments;
if (method.getParameters() == null || method.getParameters().length == 0) {
arguments = ArgumentListExpression.EMPTY_ARGUMENTS;
} else {
List<Expression> args = new LinkedList<Expression>();
for (Parameter parameter : methodParameters) {
args.add(new VariableExpression(parameter));
}
arguments = new ArgumentListExpression(args);
}
Expression receiver =
method.isStatic() ? new ClassExpression(node) : new VariableExpression(newParams[0]);
MethodCallExpression mce = new MethodCallExpression(receiver, method.getName(), arguments);
mce.setMethodTarget(method);
ExpressionStatement returnStatement = new ExpressionStatement(mce);
MethodNode bridge =
node.addMethod(
"access$" + i,
access,
method.getReturnType(),
newParams,
method.getExceptions(),
returnStatement);
privateBridgeMethods.put(method, bridge);
bridge.addAnnotation(new AnnotationNode(COMPILESTATIC_CLASSNODE));
}
}
if (!privateBridgeMethods.isEmpty()) {
node.setNodeMetaData(PRIVATE_BRIDGE_METHODS, privateBridgeMethods);
}
}
public void addMixin(MixinNode mixin) {
// let's check if it already uses a mixin
MixinNode[] mixins = redirect().mixins;
boolean skip = false;
for (MixinNode existing : mixins) {
if (mixin.equals(existing)) {
skip = true;
break;
}
}
if (!skip) {
MixinNode[] newMixins = new MixinNode[mixins.length + 1];
System.arraycopy(mixins, 0, newMixins, 0, mixins.length);
newMixins[mixins.length] = mixin;
redirect().mixins = newMixins;
}
}
public void addInterface(ClassNode type) {
// let's check if it already implements an interface
boolean skip = false;
ClassNode[] interfaces = redirect().interfaces;
for (ClassNode existing : interfaces) {
if (type.equals(existing)) {
skip = true;
break;
}
}
if (!skip) {
ClassNode[] newInterfaces = new ClassNode[interfaces.length + 1];
System.arraycopy(interfaces, 0, newInterfaces, 0, interfaces.length);
newInterfaces[interfaces.length] = type;
redirect().interfaces = newInterfaces;
}
}