I want to display all the methods that have the Obsolete tag. This one I can do.
However we use a string to define in which release the method was obsoleted.
[Obsolete("2013.1")]
is it possible to access that string using the CQL?
Related
What is the reason of using custom getters and setters in an application.
That's fairly very simple
First let me show you a sample of how getters and setters in Dart look like, which is essentially the language behind Flutter
class Foo {
// Creating a field/instance variable
String _fooName; //Keeping it private always
// Using the getter
String get foo_name {
//We can do something else here, like saving the variable somewhere and then returning it to the caller function
return _fooName;// private variable return for use in outside class
}
// Using the setter method
set foo_name (String name) {
// We can do something else, like update another variable based on fooName
this._fooName = name;//private variable being assigned new value
}
}
From the name, setters are involved in setting the values to an instance variable in an object oriented programming paradigm whereas getters are involved in getting the value of an instance variable
Now you would ask why not return the instance variable directly and why having such a roundabout approach to setting and getting the value
Well the answer is while getting as well as setting, we might want to do some other operation too other than just setting or getting the value and it's always better not to give admin access to the variables and that's why they are private so as to promote consistency within the objects accessing the field
It's a matter of preference, but you really shouldn't needlessly create one for a single field
https://dart.dev/guides/language/effective-dart/usage#dont-wrap-a-field-in-a-getter-and-setter-unnecessarily
One use case for creating a setter would be to perform some type of validation
For a getter, it'd be useful for a calculated field based on other properties, rather than a single property alone
Is there a way to find a method by it's bytecode name?
For example, I would like to find a reference to println(Object) by string "_root_.scala.Predef.println(Ljava/lang/Object;)V."
There is no direct way to do it.
You have to parse string to extract class name. Load class by name and iterate thru its method to find required method.
I'd like to copy all properties from a NSManagedObject over to a "regular" Swift class. I don't want to do this manually, i.e. make a regular class with all the properties for every NSManagedObject and then manually copy all those values.
I do know how to read property names and values dynamically from my managed object, but how to set them on a Swift class in a way that I can then use those values like
mySwiftObject.name
which returns a String or
mySwiftObject.age
which returns a Number (as those are the types on the Managed Object). Custom subscripting and stuff like that came to my mind, but I didn't manage to achieve this... Is there a nice way to do exactly that?
I've got custom fluid ViewHelper that returns an array, and I'd like to access a value of this array directly in one command.
Currently I'm using two commands:
{vendor:helper() -> v:variable.set(name: 'data')}
Value of foo: {data.foo}
Is there a way to do this in a single command? v:variable.get does not seem suited for this task.
As #Jpsy said, there is the VHS Variable / GetViewHelper.
But the usage should be {v:variable.get(name: '{vendor:helper()}.foo')}.
If you need the returned array of your viewhelper multiple times in your template, it's better to use it the way you already did. Because otherwise you would call the PHP method behind the viewhelper to build and return the array each time you want to access an index of an already previously built array again.
v:variable.get of VHS viewhelpers does exactly what you want:
{v:variable.get(name: 'data.{foo}')}
This returns the item with index {foo} from array data.
You write that you're using a custom ViewHelper.
Can you modify it?
Inside the ViewHelper you can easy assign a Variable with:
$this->templateVariableContainer->add('variable', 'content');
It depends also on what you're really trying to reach. If you want to cicle the array, you should create a different viewhelper
If you want to create the array, and then access all the data in different position, you're looking for the f:alias fluid helper
Int he last situation, where you look a direct access of a property immediately after the helper call and no more about it, you have to change your viewhelper, with an optional value. If the helper recive the value, you return the element, otherwise it returns the entire array
I'm using Eclipse JDT AST to parse a given java source code. While parsing the code, when it hits a method invocation, I want to find out whether that particular method returns or sets a value of an instance variable (basically to find out whether the callee method is a getter/setter of the same class of caller method).
E.g.:
public void test(){
//when parsing the following line I want to check whether "getName"
//returns a value of an instance variable.
String x = getName();
//when parsing the following line I want to check whether "setName"
//sets the value of an instance variable.
setName("some-name");
}
I've used the AST plugin also find out a possible path which would help me to refer it from the API, but couldn't.
Please let me know whether this is possible and if so, which approach that would help me to get the required information.
Don't think that there is an api which tells you whether a method is a getter or a setter.
You will have to write code to do this. For a getter, you can probably simply check if the last statement in the method is a return statement which returns an instance variable.