badness when VARIABLES is made global const

[StefanKarpinski]

julia> VARIABLES
[]

julia> x = 1
1

julia> VARIABLES
[]

julia> push(VARIABLES, :foo)
[foo]

julia> VARIABLES
[foo]

julia> push(VARIABLES, 1)
no method convert(Type{Symbol},Int64)

julia> VARIABLES
access to undefined reference

julia> length(VARIABLES)
2

I made VARIABLES global and constant in a39ba7b.

[JeffBezanson]

Has nothing to do with const. It's because you made VARIABLES a Symbol array, so pushing an Int64 doesn't work. The problem is then that push grows the array before checking that the assignment will succeed.

[StefanKarpinski]

But there's also the issue of :x not showing up in VARIABLES the first time. The latter behavior is broken too though.

[JeffBezanson]

It's because internally i expect VARIABLES to be an Any array, not a Symbol array.

[JeffBezanson]

Fixed in fa87427.