Julia: Parse suffixed operators with chains
Currently, suffixed operators (#22089) are all parsed as binary function calls. However, it seems natural that operators which are normally parsed as chains should have their suffixed versions inherit this behavior.
julia> :(a + b + c)
:(a + b + c)
julia> :(a +ₐ b +ₐ c)
:((a +ₐ b) +ₐ c)
julia> :(+(a, b, c))
:(a + b + c)
julia> :(+ₐ(a, b, c))
:(+ₐ(a, b, c))
HarrisonGrodin
All 2 comments
At first glance, it looks like all that would need to be done would be to change (memq t chain-ops) to (memq (maybe-strip-op-suffix t) chain-ops) in julia-parser.scm (two lines).
stevengj
on 17 Jul 2018
One problem with doing this is that it would make operators like +ₐ harder to override, since in the common case where you only want to define the two-argument version you'd have to also implement a fallback like https://github.com/JuliaLang/julia/blob/b012ab3a44b64a145d993824319abe00d77e8e32/base/operators.jl#L497-L507
stevengj
on 19 Jul 2018
👍3
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Most helpful comment
One problem with doing this is that it would make operators like
+ₐharder to override, since in the common case where you only want to define the two-argument version you'd have to also implement a fallback like https://github.com/JuliaLang/julia/blob/b012ab3a44b64a145d993824319abe00d77e8e32/base/operators.jl#L497-L507