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Code

import std.stdio;
import std.algorithm.mutation; 
import std.conv;

class Outer
{
	int _id; 
	this(int id)
	{
		_id = id; 
	}
	Inner[int] _innerarr; 
	
    class Inner
    {
		int _id; 
		bool _someProp; 
		this(int id)
		{
			_id = id; 
			this.outer._innerarr[_id] = this; 
		}
		~this()
		{
			//this.outer._innerarr.remove(_id);
		}
        Outer foo()
        {
            return this.outer;
        }
    }

void bar(int id)
    {
        Inner i = new Inner(id);
        assert(this == i.foo());
    }
}

void main()
{
	Outer o1 = new Outer(1);
	Outer o2 = new Outer(2);
	o1.bar(1);
	o2.bar(2); 
	 
	writeln("Creation"); 
	Outer.Inner[int] iarr1 = o1._innerarr; 
	int[] keys1 = iarr1.keys; 
	Outer.Inner i1 = iarr1[keys1[0]]; 
	writeln(iarr1);

Outer.Inner[int] iarr2 = o2._innerarr; 
	int[] keys2 = iarr2.keys; 
	Outer.Inner i2 = iarr2[keys2[0]]; 
	writeln(iarr2); 
	
	writeln();
	writeln("First Output Block");

write("outer 1 id: "); 	writeln(o1._id);
	write("inner 1 id: "); 	writeln(i1._id);

write("outer 2 id: "); 	writeln(o2._id);
	write("inner 2 id: "); 	writeln(i2._id); 
	
	writeln();
	writeln("Output Block before move"); 
	writeln(o2._innerarr);
	writeln(o1._innerarr);

//why I have to initialize?
	o2.new Inner(1);
	
	writeln("sP: " ~ to!string(o2._innerarr[1]._someProp));
	o1._innerarr[1]._someProp = true;  
	writeln("sP: " ~ to!string(o1._innerarr[1]._someProp));

move(o1._innerarr[1], o2._innerarr[1]);
	
	writeln("Output Block before move"); 
	writeln("sP: " ~ to!string(o2._innerarr[1]._someProp));
	//why I have to remove explicitly from the old AA??
	//o1._innerarr.remove(1);
	writeln(o2._innerarr);
	writeln(o1._innerarr);
	
	writeln(); 
	writeln("Output of the outer pointer of the moved inner object"); 
	//Why the reference in the moved inner object resist on the old outer object???
	writeln(o2._innerarr[1].outer._id);

}

Application output:

Creation [1:f124.Outer.Inner] [2:f124.Outer.Inner] First Output Block outer 1 id: 1 inner 1 id: 1 outer 2 id: 2 inner 2 id: 2 Output Block before move [2:f124.Outer.Inner] [1:f124.Outer.Inner] sP: false sP: true Output Block before move sP: true [2:f124.Outer.Inner, 1:f124.Outer.Inner] [1:f124.Outer.Inner] Output of the outer pointer of the moved inner object 1

Paste info

Author: Sandman

Views: 395

Private: no

Expires: Never

Uploaded: 29.09.15 15:58

Votes: 0

Compilation

Compiler: DMD 2.079.1 ( 2.079.1 )

Pointer size: m64

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