Hi,
I have a module (called Auditory) which exports an immutable type (called
ModulationFilter) which is only a container for a vector of BiquadFilters (a
type exported by another module, DSP). It also exports a helper function for
constructing ModulationFilter, defined here:
https://github.com/jfsantos/Auditory.jl/blob/master/src/ModulationFilterbank.jl#L23
<https://github.com/jfsantos/Auditory.jl/blob/master/src/ModulationFilterbank.jl#L23>)
The code for the whole module is available here:
https://github.com/jfsantos/Auditory.jl.
On Julia 0.3, all tests pass. However, when using 0.4, I get the following
error when calling make_modulation_filter (which simply creates a vector of
BiquadFilters and calls the default constructor for ModulationFilterbank):
ERROR: `convert` has no method matching
convert(::Type{ModulationFilterbank{T}}, ::Array{BiquadFilter{T},1})
in modulation_filterbank at
/Users/jfsantos/.julia/v0.4/Auditory/src/ModulationFilterbank.jl:24
Calling methods(ModulationFilterbank) in Julia 0.3 returns:
# 1 method for generic function "ModulationFilterbank":
ModulationFilterbank{T}(filters::Array{BiquadFilter{T},1})
but in 0.4, I get instead:
2-element Array{Any,1}:
call{T}(::Type{ModulationFilterbank{T}},filters::Array{BiquadFilter{T},1})
call{T}(::Type{T},args...) at base.jl:34
I thought there was a difference in how 0.3 and 0.4 deal with the “default
constructor”, so I tried replicating the example with a sillier module:
module Foo
export Bar
immutable Bar{T}
x::Vector{T}
end
end
However, I am able to create elements of this immutable type with a default
constructor either in 0.3 or 0.4. Of course, in this case I don’t have the
additional complication of using a type defined in a second module.
Can anyone point out where I am making a mistake here?
Thanks!
Best regards
João
