Re: Allocating a class within another class during object init w/o passing in an allocator

[visitor via Digitalmars-d-learn]

On Thursday, 15 December 2016 at 17:44:23 UTC, David  Zhang wrote:

would something like this be a solution ?

import std.stdio;
import std.experimental.allocator;

class SomeClass {
    int someint = 42;

    static SomeClass opCall(int a) {
        auto inst = theAllocator.make!SomeClass;
        inst.someint += a;
        return inst;
    }

    void destruct() {
        theAllocator.dispose(this);
    }
}

class Foo {
    this() {
        sc = SomeClass(7);
        sc.someint -= 42;
    }

    ~this() {
        sc.destruct();
    }

    size_t something;
    SomeClass sc;
}



void main(string[] args) {
    auto foo = theAllocator.make!Foo;
    assert(foo.sc.someint == 7);
    theAllocator.dispose(foo);
}