On 09/10/2016 10:44 PM, Yuxuan Shui wrote:
I recently noticed nested struct capture its context by reference
(which, BTW, is not mentioned at all here:
https://dlang.org/spec/struct.html#nested). And bliting a struct
obviously doesn't do a deep copy of its context.

So my question is, is there a way to deep copy the context of a struct?

Can you show a small example? This seems to work:

auto foo(int i) {
    struct S {
        int foo() {
            return i;
        }
    }

    return S();
}

void main() {
    auto s = foo(42);
    auto s_copy = s;
    assert(s.foo() == 42);
    assert(s_copy.foo() == 42);
}

Ali

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