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syntax for inaccessible patterns in GF

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krasimir
2010-03-18 19:34:30 +00:00
parent dc0a84951f
commit 0c2944fa7f
11 changed files with 38 additions and 14 deletions
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src/compiler/GF/Compile/Abstract/TC.hs
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@@ -241,6 +241,7 @@ checkBranch th tenv b@(ps,t) ty = errIn ("branch" +++ show b) $
PFloat n -> (EFloat n : ps, i, g, k)
PP m c xs -> (mkApp (Q m c) xss : ps, j, g',k')
where (xss,j,g',k') = foldr p2t ([],i,g,k) xs
PTilde t -> (t : ps, i, g, k)
_ -> error $ render (text "undefined p2t case" <+> ppPatt Unqualified 0 p <+> text "in checkBranch")
upd x k g = (x, VGen k x) : g --- hack to recognize pattern variables