CODEWITHSUNDEEP
julia
Set
Set

Reputation: 934

Julia, type interdependencies

How would I resolve something like this:

type Foo
    x::Goo
    end

type Goo
    y::Foo
    end

I feel like this is a compile vs run-time issue, is there a way to pre-declare types so that the interpreter/compiler/whatever doesn't throw a LoadError?

Upvotes: 1

Views: 203

Answers (1)

IainDunning
IainDunning

Reputation: 11644

One way is to use an abstract type

abstract GooLike

type Foo
     x::GooLike
end

type Goo <: GooLike
     y::Foo
end

or parametric version

type Foo{T<:GooLike}
    x::T
end

There is an open issue (as of the 2014-08-08) about circular dependencies.

Upvotes: 3

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