You are using a very new Julia 0.4 build. So this is due to the recent
Tuple changes. tuple-types are now no longer declared as tuples of types,
they have a specific new syntax : Type{T, S} etc... See
*https://github.com/JuliaLang/julia/pull/10380
*
So your code will work with the following:
julia> typealias Bar Tuple{Function, Function}
Tuple{Function,Function}
julia> f(bar::Bar) = 1
f (generic function with 1 method)
julia> f( (sin, cos) )
1
On Wednesday, 22 April 2015 07:44:36 UTC+1, Miao Yang wrote:
>
> I don't know how to describe my problem, so let me past the code.
>
> ```
>
> julia> typealias Foo (Function, Function)
> (Function,Function)
>
> julia> f(foo::Foo) = 1
> ERROR: ArgumentError: invalid type for argument foo in method definition
> for f at none:1
>
>
> ```
>
> The Julia version is ` Version 0.4.0-dev+4328 `
>
> And these works recently ...
>
>
>
