github/semantic
1
1
Fork 0
mirror of https://github.com/github/semantic.git synced 2024-12-22 06:11:49 +03:00
Code Issues Projects Releases Wiki Activity

Add bindExports

Browse Source 
Returns an env with the given values aliased
This commit is contained in:
joshvera 2018-03-07 10:03:26 -05:00
parent a448acf0a1
commit 4c1b74b49d
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
src/Data/Abstract/Environment.hs
View File

@ -27,6 +27,11 @@ bindEnv :: (Ord l, Foldable t) => t Name -> Environment l a -> Environment l a
bindEnv names env = Environment (Map.fromList pairs)
where pairs = foldr (\name b -> maybe b (\v -> (name, v) : b) (envLookup name env)) mempty names
bindExports :: (Ord l, Foldable t) => t (Name, Name) -> Environment l a -> Environment l a
bindExports aliases env = Environment pairs
where
pairs = foldr (\(name, alias) b -> maybe b (\v -> Map.insert alias v b) (envLookup name env)) mempty aliases
-- | Retrieve the 'Live' set of addresses to which the given free variable names are bound.
--
-- Unbound names are silently dropped.