Assoc. Array and struct with immutable member

[Alex]

On Sunday, 15 April 2018 at 17:59:01 UTC, Dgame wrote:
> How am I supposed to insert a struct with immutable members 
> into an assoc. array?
>
> Reduced example:
> ----
> struct A {
>     immutable string name;
> }
>
> A[string] as;
> as["a"] = A("a"); // Does not work
> ----

Via a static this() it would work. But I guess, this is not what 
you are looking for, is it?

´´´
static this()
{
	as["a"] = A("a");
}

void main()
{	
	assert(as["a"].name == "a");
}


struct A {
     immutable string name;
}

A[string] as;
´´´


It also works, if you hide the AA in a class and all the 
insertions into the constructor.


´´´
/*
static this()
{
	as["a"] = A("a");
}
*/
void main()
{	
	auto c = new Container(A("a"));
	assert(c.as["a"].name == "a");
}

struct A {
     immutable string name;
}

class Container
{
	A[string] as;
	this(A a)
	{
		as[a.name] = a;
	}
}
´´´