Support for arbitrary callables #84
Description
adapt_structure fails if there are mixed concrete types and parametric types in a function type.
Tests:
using Adapt
# This should be equivalent to what adapt_structure does
g(f::T) where T = length(T.parameters)
abstract type AbstractSuperType{t} end
abstract type AbstractSuperType2{t} <: Function end
struct A{T}
a::T
end
a = A(1)
@assert g(a) == 1 # Works
Adapt.adapt_structure(1.0, a) # Works
struct B{T} <: AbstractSuperType2{true}
b::T
end
b = B(1)
@assert g(b) == 1 # Works
Adapt.adapt_structure(1.0, b) # works
struct B2 <: AbstractSuperType2{true}
b::Int
end
b2 = B2(1)
@assert g(b2) == 0 # Works
Adapt.adapt_structure(1.0, b2) # works
struct C{T} <: AbstractSuperType2{true}
b::T
a::Int
end
c = C(1,1)
@assert g(c) == 1 # Works
Adapt.adapt_structure(1.0, c) # fails
struct C2{T}
b::T
a::Int
end
c2 = C2(1,1)
@assert g(c2) == 1 # Works
Adapt.adapt_structure(1.0, c2) # works
struct C3{T} <: AbstractSuperType{true}
b::T
a::Int
end
c3 = C3(1,1)
@assert g(c3) == 1 # Works
Adapt.adapt_structure(1.0, c3) # works
struct D{T} <: AbstractSuperType2{true}
a::Int
b::T
end
d = D(1,1)
@assert g(d) == 1 # Works
Adapt.adapt_structure(1.0, d) # fails
struct D2{T}
a::Int
b::T
end
d2 = D2(1,1)
@assert g(d2) == 1 # Works
Adapt.adapt_structure(1.0, d2) # works
struct D3{T} <: AbstractSuperType{true}
a::Int
b::T
end
d3 = D3(1,1)
@assert g(d3) == 1 # Works
Adapt.adapt_structure(1.0, d3) # works
struct D4{T} <: AbstractSuperType2{true}
a::Int
b::T
end
d4 = D4(1,1)
@assert g(d4) == 1 # Works
Adapt.adapt_structure(1.0, d4) # fails
struct E{T} <: AbstractSuperType2{true}
a::Int
b::T
c::Int
end
e = E(1,1,1)
@assert g(e) == 1 # Works
Adapt.adapt_structure(1.0, e) # fails