Enum can now be defined with begin block

[s-celles]

Hello,

Since JuliaLang/julia#25424 and so for Julia 0.7 and 1.0, Enum can now be defined with begin block

So (for example)

https://github.com/andrewadare/LibSerialPort.jl/blob/6ac19a8e0497c1051e1ee628e70a3af672f5fcb6/src/wrap.jl#L10-L16

could become

@enum SPReturn begin
    SP_OK = 0
    SP_ERR_ARG = -1
    SP_ERR_FAIL = -2
    SP_ERR_MEM = -3
    SP_ERR_SUPP = -4
end

Kind regards

[andrewadare]

Thanks for the tip, this looks a bit cleaner. Updated in 795a6df

[s-celles]

Thanks for your library.
I'm currently trying to build a lib using LibSerialPort.jl to communicate with Itead Nextion display.
Nice to see this lib updated.