On Mon, Jul 27, 2015 at 6:31 PM, Yichao Yu <[email protected]> wrote:
> module Test
>
> export ffun
>
> macro protofun(fsig::Expr)
> @assert fsig.head == :call
> fname = fsig.args[1]
> argnames = []
> for idx in 2:length(fsig.args)
> arg = fsig.args[idx]
> if isa(arg, Expr) && arg.head == :kw
> arg = arg.args[1]
> end
> if isa(arg, Symbol)
> push!(argnames, arg)
> elseif isa(arg, Expr) && arg.head == :(::)
> if length(arg.args) != 2
> @gensym s
> insert!(arg.args, 1, s)
> end
> push!(argnames, arg.args[1])
I realized that I didn't handle vararg arguments... oh well...
> end
> end
> body = quote
> error(string("No matching of: ", $fname,
> ($([:(typeof($(esc(arg)))) for arg in argnames]...),)))
> end
> Expr(:function, esc(fsig), body)
> end
>
> "some doc"
> @protofun ffun(::Number, b::String, ::Int=1)
>
> Base.Test.@test (@doc ffun) !== nothing
>
> ffun(1, "")
>
> end
>
> On Mon, Jul 27, 2015 at 6:26 PM, Christoph Ortner
> <[email protected]> wrote:
>> Just one last question though:
>>
>> Is there a way to write the macro so that I could attach the doc strings as
>> usual, i.e.
>>
>> @doc doc"yads"->
>> @protofun(ffun, Integer, String)
>>
>> instead of
>>
>> @protofun(ffun, Integer, String, "yads")
>>
>> ? I couldn't figure this out at all.
>> Thanks,
>> Christoph
