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XBasic syntax for destructor method

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    XBasic syntax for destructor method

    Hi,

    I thought I read somewhere in the documentation that the syntax for creating a destructor method for an xbasic class was ~ClassName(), but Alpha is not liking that. Can someone direct me to the docs on this?

    Thanks!

    Edit: I found where the syntax shows the ~ClassName(), here: https://documentation.alphasoftware....s%20Syntax.xml, but it just isn't working.

    #2
    Re: XBasic syntax for destructor method

    Hey Adam,

    To create a destructor (special member function that is called when the lifetime of an object ends.)

    DEFINE CLASS TestClass

    dim read protected write Name as C
    dim Data as A
    dim read protected write static InstanceCount as N

    FUNCTION ~TestClass()
    debug(1)
    END FUNCTION
    END CLASS

    Dim a as testclass
    ?A
    = '
    Clear as V() '
    static DefaultDataType as C() '
    TestClass as C() '
    TESTING as C() '
    ~TestClass as C() '
    Name = ""


    DELETE A < this will trigger the ~TextClass function
    Alex Collier

    "The spread of computers and the Internet will put jobs in two categories. People who tell computers what to do, and people who are told by computers what to do"

    AA Builds from 5221_5152 to Pre-releases >> Deploying to IIS in AWS

    Comment


      #3
      Re: XBasic syntax for destructor method

      Alex,

      As I said in the OP, I found that in the documentation... but Alpha doesn't seem to recognize the ~ and won't let it save/compile.

      I get an error message:

      Error at line: xx, column: 1
      Error: Expected value

      I get this error even if I copy your code above exactly.

      Code:
      DEFINE CLASS TestClass
      
      dim read protected write Name as C
      dim Data as A
      dim read protected write static InstanceCount as N
      
      FUNCTION ~TestClass()
      debug(1)
      END FUNCTION
      END CLASS

      Comment


        #4
        Re: XBasic syntax for destructor method

        Originally posted by AdamP View Post
        Alex,

        As I said in the OP, I found that in the documentation... but Alpha doesn't seem to recognize the ~ and won't let it save/compile.

        I get an error message:

        Error at line: xx, column: 1
        Error: Expected value

        I get this error even if I copy your code above exactly.

        Code:
        DEFINE CLASS TestClass
        
        dim read protected write Name as C
        dim Data as A
        dim read protected write static InstanceCount as N
        
        FUNCTION ~TestClass()
        debug(1)
        END FUNCTION
        END CLASS
        Hello Adam!

        We got your doc report and tested the Xbasic destructor syntax. We also tested the code quoted in your post in the current release. We were unable to reproduce your issue.

        If you think you found a bug, please submit a FULL test case to [email protected].

        Thanks!
        Sarah Mitchell
        Director of Customer Success | [URL="https://www.alphasoftware.com"]Alpha Software Corporation[/URL]
        [B]Get in the know! [/B] Join us for our Weekly Webinars: [URL="https://www.alphasoftware.com/weekly-transform-tuesday-webinar"]TransForm Tuesday[/URL] and [URL="https://www.alphasoftware.com/weekly-alpha-anywhere-overview-webinar"]Wednesday's Alpha Anywhere Demo and Q&A[/URL]
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        Comment


          #5
          Re: XBasic syntax for destructor method

          Adam,

          You need to include the Alpha version/build in your posts. Alpha often cannot replicate issues because they often test bug reports with internal builds... not the public builds everyone else uses. At times these differ. Or... Alpha may test in their current release not knowing what release you're using.

          Using build 5221 I get exactly the same results as you.
          Using build Pre-release build 5417 I do not see an error when saving the class. However, there is an error using the class
          Using the current release, 5445, there are no errors and the Class, and it's functions, work properly.

          Whatever issues there were have been corrected in the releases leading up to, and including 5445.

          What build are are using?
          Last edited by Davidk; November 07, 2018, 09:41 PM.

          Comment


            #6
            Re: XBasic syntax for destructor method

            Thanks David, that makes sense.

            I am also using build 5221.

            Comment


              #7
              Re: XBasic syntax for destructor method

              Then you should download 5445 and put it in as a separate installation. You do not need to update your current 5221 install. That way you can test the current release and ensure it works as expected... and this may help confirm an issue with 5221. That may, however, leave a big question as to why Alex does not have an issue.
              Last edited by Davidk; November 07, 2018, 09:41 PM.

              Comment


                #8
                Re: XBasic syntax for destructor method

                Originally posted by Davidk View Post
                Then you should download 5445 and put it in as a separate installation. You do not need to update your current 5221 install. That way you can test the current release and ensure it works as expected... and this may help confirm an issue with 5221. That may, however, leave a big question as to why Alex does not have an issue.
                I had tested in the latest release :) I will always to do this unless you sy what version i should be running it under
                Alex Collier

                "The spread of computers and the Internet will put jobs in two categories. People who tell computers what to do, and people who are told by computers what to do"

                AA Builds from 5221_5152 to Pre-releases >> Deploying to IIS in AWS

                Comment


                  #9
                  Re: XBasic syntax for destructor method

                  Didn't the latest release only come out yesterday or today? Not everyone wants to immediately update due to compatibility concerns.

                  Anyway, I will be updating as David recommends, in a separate installation.

                  Comment


                    #10
                    Re: XBasic syntax for destructor method

                    Hey Adam,

                    That is a fair call.

                    Sorry would of been the a pre-release version, I have like a rolling 5 Versions of AA installed. One being the Official Release and the rest being 4 versions of the pre-releases.
                    Alex Collier

                    "The spread of computers and the Internet will put jobs in two categories. People who tell computers what to do, and people who are told by computers what to do"

                    AA Builds from 5221_5152 to Pre-releases >> Deploying to IIS in AWS

                    Comment


                      #11
                      Re: XBasic syntax for destructor method

                      No worries Alex. I am not that advanced yet as an Alpha user, but I'm working towards it! Thanks for the help.

                      Comment


                        #12
                        Re: XBasic syntax for destructor method

                        Originally posted by alexc View Post
                        I had tested in the latest release :) I will always to do this unless you sy what version i should be running it under
                        I was going by the release in your signature.

                        Tests should detail what version they are being run under. If the posted issue doesn't specify and the tester doesn't specify then the tests are essentially invalid.

                        Comment

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