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Force variables to be different in @varnames_interface #1850

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Force variables to be different in @varnames_interface #1850

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12 changes: 11 additions & 1 deletion src/misc/VarNames.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -300,7 +300,9 @@ function varnames_method(d::Dict{Symbol})
$f($(args...), s1::VarNames, s::VarNames...; kv...) where {$(wheres...)} =
$f($(argnames...), (s1, s...); kv...)
function $f($(args...), s::Tuple{Vararg{VarNames}}; kv...) where {$(wheres...)}
X, gens = $f($(argnames...), variable_names(s...); kv...)
varnames = variable_names(s...)
@req allunique(varnames) "Variable names must be unique"
X, gens = $f($(argnames...), varnames; kv...)
return X, reshape_to_varnames(gens, s...)...
end
end
Expand Down Expand Up @@ -450,6 +452,14 @@ julia> @f("hello", "x#" => (1:1, 1:2), "y#" => (1:2), [:z])
julia> (x11, x12, y1, y2, z)
("x11", "x12", "y1", "y2", "z")

julia> f("something", VarName["x", "y", "z", :x])
ERROR: ArgumentError: Variable names must be unique
[...]

julia> f("something else", :x=>1:2, :x=>1:3)
ERROR: ArgumentError: Variable names must be unique
[...]

julia> g(a, s::Vector{Symbol}; kv...) = (a, kv...), String.(s)
g (generic function with 1 method)

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