diff options
Diffstat (limited to 'stdlib/source/lux.lux')
| -rw-r--r-- | stdlib/source/lux.lux | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/stdlib/source/lux.lux b/stdlib/source/lux.lux index 9cc2254b2..6042457fe 100644 --- a/stdlib/source/lux.lux +++ b/stdlib/source/lux.lux @@ -1618,7 +1618,7 @@ (wrap (#Cons y ys)))} xs))) -(def:''' (monad/fold m f y xs) +(def:''' (monad@fold m f y xs) #Nil ## (All [m a b] ## (-> (Monad m) (-> a b (m b)) b (List a) (m b))) @@ -1635,7 +1635,7 @@ (#Cons x xs') (do m [y' (f x y)] - (monad/fold m f y' xs'))} + (monad@fold m f y' xs'))} xs))) (macro:' #export (if tokens) @@ -1770,7 +1770,7 @@ [lastO (untemplate lastI)] (wrap (form$ (list (tag$ ["lux" "Cons"]) (tuple$ (list lastO (tag$ ["lux" "Nil"])))))))} lastI)] - (monad/fold meta-monad + (monad@fold meta-monad (function' [leftI rightO] ({[_ (#Form (#Cons [[_ (#Identifier ["" "~+"])] (#Cons [spliced #Nil])]))] (let' [[[_module-name _ _] _] spliced] @@ -4259,7 +4259,7 @@ tags) pattern (tuple$ (list@map identifier$ locals))] (do meta-monad - [enhanced-target (monad/fold meta-monad + [enhanced-target (monad@fold meta-monad (function (_ [m-local m-type] enhanced-target) (do meta-monad [m-structure (resolve-type-tags m-type)] @@ -5881,3 +5881,18 @@ [no yes] [off on] ) + +(macro: #export (:let tokens) + (case tokens + (^ (list [_ (#Tuple bindings)] bodyT)) + (if (multiple? 2 (list@size bindings)) + (return (list (` (..with-expansions [(~+ (|> bindings + ..as-pairs + (list@map (function (_ [localT valueT]) + (list localT (` (..as-is (~ valueT)))))) + (list@fold list@compose (list))))] + (~ bodyT))))) + (..fail ":let requires an even number of parts")) + + _ + (..fail "Wrong syntax for :let"))) |