Mercurial > projects > ldc
view tango/example/conduits/composite.d @ 210:1d6cfdbc97f0 trunk
[svn r226] Fixed: deleting interface.
Removed: unused util function for calling class destructors.
author | lindquist |
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date | Wed, 14 May 2008 02:00:23 +0200 |
parents | 1700239cab2e |
children |
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private import tango.io.protocol.Reader, tango.io.protocol.Writer, tango.io.FileConduit; /******************************************************************************* Use cascading reads & writes to handle a composite class. There is just one primary call for output, and just one for input, but the classes propogate the request as appropriate. Note that the class instances don't know how their content will be represented; that is dictated by the caller (via the reader/writer implementation). Note also that this only serializes the content. To serialize the classes too, take a look at the Pickle.d example. *******************************************************************************/ void main() { // define a serializable class (via interfaces) class Wumpus : IReadable, IWritable { private int a = 11, b = 112, c = 1024; void read (IReader input) { input (a) (b) (c); } void write (IWriter output) { output (a) (b) (c); } } // define a serializable class (via interfaces) class Wombat : IReadable, IWritable { private Wumpus wumpus; private char[] x = "xyz"; private bool y = true; private float z = 3.14159; this (Wumpus wumpus) { this.wumpus = wumpus; } void read (IReader input) { input (x) (y) (z) (wumpus); } void write (IWriter output) { output (x) (y) (z) (wumpus); } } // construct a Wombat auto wombat = new Wombat (new Wumpus); // open a file for IO auto file = new FileConduit ("random.bin", FileConduit.ReadWriteCreate); // construct reader & writer upon the file, with binary IO auto output = new Writer (file); auto input = new Reader (file); // write both Wombat & Wumpus (and flush them) output (wombat) (); // rewind to file start file.seek (0); // read both back again input (wombat); }