private Statement makeMethodBody(
ClassNode classNode, MethodSignature methodSignature, Parameter[] parameters) {
String invokeMethod = methodSignature.isStatic() ? "invokeStatic" : "invokeInstance";
Expression[] args = new Expression[parameters.length + 2];
args[0] =
methodSignature.isStatic()
? new ClassExpression(classNode)
: VariableExpression.THIS_EXPRESSION;
args[1] = new ConstantExpression(methodSignature.getMethodName());
int i = 2;
for (Parameter parameter : parameters) {
args[i++] = new VariableExpression(parameter.getName());
}
return returns(call(getDomainHandlerMethod(classNode), invokeMethod, args(args)));
}
protected void injectMethod(ClassNode classNode, MethodSignature methodSignature) {
Parameter[] parameters = makeParameters(methodSignature.getParameterTypes());
int modifiers = Modifier.PUBLIC;
if (methodSignature.isStatic()) modifiers |= Modifier.STATIC;
String returnTypeClassName = methodSignature.getReturnType().getName();
ClassNode returnType =
GRIFFON_DOMAIN_CLASSNAME.equals(returnTypeClassName)
? classNode
: ClassHelper.makeWithoutCaching(methodSignature.getReturnType());
classNode.addMethod(
new MethodNode(
methodSignature.getMethodName(),
modifiers,
returnType,
parameters,
ClassNode.EMPTY_ARRAY,
makeMethodBody(classNode, methodSignature, parameters)));
}