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adds support for comprehensions #157

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adds support for comprehensions #157

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13 changes: 11 additions & 2 deletions src/parsing.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -139,6 +139,7 @@ function parse_function(lhs::Union{Symbol, Expr}, rhs::Expr; autovec::Bool=true,
lhs = QuoteNode(lhs)

src = Symbol[]
bound = Symbol[]
MacroTools.postwalk(rhs) do x
if @capture(x, (fn_(args__)) | (fn_.(args__))) && fn != :esc
args = args[isa.(args, Symbol)]
Expand All @@ -149,11 +150,19 @@ function parse_function(lhs::Union{Symbol, Expr}, rhs::Expr; autovec::Bool=true,
push!(src, value)
end
end
end
elseif x isa Expr && (x.head == :generator || x.head == :comprehension)
for it in x.args[2:end] # iterator clauses
if it isa Expr && ((it.head == :in) || (it.head == :(=)))
var, coll = it.args
var isa Symbol && push!(bound, var) # loop variable
coll isa Symbol && push!(src, coll) # collection column
end
end
end
return x
end

src = unique(src)
src = unique(filter(s -> s ∉ bound, src))
func_left = :($(src...),)

if autovec
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