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generated function calls wrong method #20955

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simonster opened this issue Mar 9, 2017 · 1 comment
Closed

generated function calls wrong method #20955

simonster opened this issue Mar 9, 2017 · 1 comment
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bug Indicates an unexpected problem or unintended behavior regression Regression in behavior compared to a previous version types and dispatch Types, subtyping and method dispatch

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@simonster
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f{T}(::Type{T}) = false
@generated function g{T}(::Type{T}) f(T) end
f(::Type{String}) = true

julia> g(String)
false

Only happens on master (e596063), not release-0.5, only when g is a generated function, and only when the methods are defined in this order.
@simonster simonster added bug Indicates an unexpected problem or unintended behavior regression Regression in behavior compared to a previous version types and dispatch Types, subtyping and method dispatch labels Mar 9, 2017
@yuyichao
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yuyichao commented Mar 9, 2017

Dup of #19942

@yuyichao yuyichao closed this as completed Mar 9, 2017
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bug Indicates an unexpected problem or unintended behavior regression Regression in behavior compared to a previous version types and dispatch Types, subtyping and method dispatch
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