tasks a-s

Task/Object-serialization/Tcl/object-serialization.tcl

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+package require Tcl 8.6
+package require TclOO::serializer 0.1
+
+# These classes are inspired by the Perl example
+oo::class create Greeting {
+    superclass oo::serializable
+    variable v
+    constructor {} {
+        set v "Hello world!"
+    }
+    method get {} {
+        return $v
+    }
+}
+oo::class create SubGreeting {
+    superclass Greeting oo::serializable
+    variable v
+    constructor {} {
+        set v "Hello world from Junior!"
+    }
+}
+oo::class create GreetingsHolder {
+    superclass oo::serializable
+    variable o1 o2
+    constructor {greeting1 greeting2} {
+        set o1 $greeting1
+        set o2 $greeting2
+    }
+    method printGreetings {} {
+        puts [$o1 get]
+        puts [$o2 get]
+    }
+    destructor {
+        $o1 destroy
+        $o2 destroy
+    }
+}
+
+# Make some objects and store them
+GreetingsHolder create holder [Greeting new] [SubGreeting new]
+set f [open "objects.dat" w]
+puts $f [oo::serialize holder]
+close $f
+
+# Delete the objects
+holder destroy
+
+# Recreate the objects from the file and show that they work
+set f [open "objects.dat" r]
+set obj [oo::deserialize [read $f]]
+close $f
+$obj printGreetings