How to resolve the algorithm Object serialization step by step in the E programming language

Published on 12 May 2024 09:40 PM
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How to resolve the algorithm Object serialization step by step in the E programming language

Table of Contents

Problem Statement

Create a set of data types based upon inheritance. Each data type or class should have a print command that displays the contents of an instance of that class to standard output. Create instances of each class in your inheritance hierarchy and display them to standard output. Write each of the objects to a file named objects.dat in binary form using serialization or marshalling. Read the file objects.dat and print the contents of each serialized object.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Object serialization step by step in the E programming language

Source code in the e programming language

def makeEvent(time :int) {
    return def event {
        to __printOn(out) { out.print(`@@$time`) }
        to __optUncall() { return [makeEvent, "run", [time]] }
        to getTime() { return time }
    }
}

def makeArrival(time :int, what :any, position :int) {
    return def arrival extends makeEvent(time) {
        to __printOn(out) { 
            out.print(`$what to $position $super`)
        }
        to __optUncall() { 
            return [makeArrival, "run", [time, what, position]]
        }
      
        to getWhat() { return what }
        to getPosition() { return position }
    }
}

def surgeon := ().diverge()
surgeon.addExit(makeEvent, "makeEvent")
surgeon.addExit(makeArrival, "makeArrival")

def objs := [makeEvent(timer.now()),
             makeArrival(timer.now(), "Smith", 7)]

stdout.println(objs)
.setBytes(surgeon.serialize(objs))
stdout.println(surgeon.unserialize(.getBytes()))

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