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Merge branch 'master' into bump-haskell-tree-sitter-0.11

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Patrick Thomson 2018-04-02 11:12:34 -04:00 committed by GitHub
commit 748c0f2e14
1 changed files with 5 additions and 2 deletions
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src/Data/Syntax/Statement.hs
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@ -77,8 +77,11 @@ instance Eq1 Let where liftEq = genericLiftEq
instance Ord1 Let where liftCompare = genericLiftCompare
instance Show1 Let where liftShowsPrec = genericLiftShowsPrec
-- TODO: Implement Eval instance for Let
instance Evaluatable Let
instance Evaluatable Let where
eval Let{..} = do
addr <- snd <$> letrec name (subtermValue letValue)
localEnv (Env.insert name addr) (subtermValue letBody)
where name = freeVariable (subterm letVariable)
-- Assignment