Heuristics
There are some analysis tools that are not based on official definitions, but on heuristics. These are not guaranteed to be correct/accurate, but they can be useful in some cases.
Guess type
The guess_type function tries to guess the type of an type expression.
julia
julia> guess_type(Main, :(Union{Float64, X}))
:(Union{Float64, X})
julia> guess_type(Main, :(Union{Float64, Int}))
Union{Float64, Int64}
Guess module
The guess_module function tries to guess the module of given expression ex (of a module) in module m. If ex is not a module, or cannot be determined return nothing.
julia
julia> guess_module(Main, :(Base))
Base
julia> guess_module(Main, :(Base.Test))
:Test