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Dispatch on Pair #19159

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jw3126 opened this issue Oct 30, 2016 · 2 comments
Closed

Dispatch on Pair #19159

jw3126 opened this issue Oct 30, 2016 · 2 comments
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types and dispatch Types, subtyping and method dispatch

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@jw3126
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jw3126 commented Oct 30, 2016 

   _       _ _(_)_     |  A fresh approach to technical computing
  (_)     | (_) (_)    |  Documentation: http://docs.julialang.org
   _ _   _| |_  __ _   |  Type "?help" for help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 0.6.0-dev.975 (2016-10-24 19:00 UTC)
 _/ |\__'_|_|_|\__'_|  |  scan/0929f08* (fork: 5 commits, 16 days)
|__/                   |  x86_64-linux-gnu

julia> f{K}(::Pair{K}) = 1
f (generic function with 1 method)

julia> f{K, V}(::Pair{K, V}) = 2
f (generic function with 2 methods)

julia> f("a"=>123)
1
@tkelman tkelman added the types and dispatch Types, subtyping and method dispatch label Oct 30, 2016
@JeffBezanson
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I can already confirm this will be fixed by #8974, after which the two signatures are type-equal and the second definition overwrites the first (with usual warning).

@mauro3 mauro3 mentioned this issue Oct 30, 2016
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@jw3126 jw3126 mentioned this issue Oct 31, 2016
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@JeffBezanson
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Dup of #18892

@JeffBezanson JeffBezanson mentioned this issue Jan 2, 2017
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@vtjnash vtjnash mentioned this issue Jan 16, 2017
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felixrehren added a commit to felixrehren/julia that referenced this issue Feb 17, 2017
@felixrehren
add more tests
60f2c9e 
JuliaLang#12814
JuliaLang#16922
JuliaLang#17943
JuliaLang#18892 JuliaLang#19159 JuliaLang#19413
JuliaLang#19041
JuliaLang#19985
@felixrehren felixrehren mentioned this issue Feb 17, 2017
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