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return_type incorrect for opaque closures #41442

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simeonschaub opened this issue Jul 1, 2021 · 2 comments
Closed

return_type incorrect for opaque closures #41442

simeonschaub opened this issue Jul 1, 2021 · 2 comments
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bug Indicates an unexpected problem or unintended behavior compiler:inference Type inference

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@simeonschaub
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Union{} is definitely incorrect here:

julia> Core.Compiler.return_type(Base.Experimental.@opaque(x -> x), Tuple{Float64})
Union{}

julia> Base.Experimental.@opaque(x -> x)(1.)
1.0
@simeonschaub simeonschaub added bug Indicates an unexpected problem or unintended behavior compiler:inference Type inference labels Jul 1, 2021
@devmotion devmotion mentioned this issue Oct 11, 2021
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@Moelf
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Moelf commented Oct 30, 2023 •
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it is now Any instead of Union{}, better?

@vtjnash
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vtjnash commented Oct 30, 2023

Any seems correct there

@vtjnash vtjnash closed this as completed Oct 30, 2023
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@vtjnash @simeonschaub @Moelf