diff options
Diffstat (limited to 'stdlib/source/lux/data/collection/row.lux')
| -rw-r--r-- | stdlib/source/lux/data/collection/row.lux | 31 |
1 files changed, 27 insertions, 4 deletions
diff --git a/stdlib/source/lux/data/collection/row.lux b/stdlib/source/lux/data/collection/row.lux index 7ae37ebea..23e5ded20 100644 --- a/stdlib/source/lux/data/collection/row.lux +++ b/stdlib/source/lux/data/collection/row.lux @@ -7,7 +7,8 @@ [equivalence (#+ Equivalence)] monoid fold - ["p" parser]] + ["p" parser] + [predicate (#+ Predicate)]] [data [maybe] [product] @@ -15,7 +16,7 @@ [i64]] [collection [list ("list/" Fold<List> Functor<List> Monoid<List>)] - [array ("array/" Functor<Array> Fold<Array>)]]] + ["." array ("array/" Functor<Array> Fold<Array>)]]] [macro (#+ with-gensyms) [code] ["s" syntax (#+ syntax: Syntax)]] @@ -434,8 +435,30 @@ (^open) Monoid<Row>] (fold (function (_ post pre) (compose pre post)) identity)))) -(def: #export (reverse xs) +(def: #export reverse (All [a] (-> (Row a) (Row a))) (let [(^open) Fold<Row> (^open) Monoid<Row>] - (fold add identity xs))) + (fold add identity))) + +(do-template [<name> <array> <init> <op>] + [(def: #export <name> + (All [a] + (-> (Predicate a) (Row a) Bit)) + (let [help (: (All [a] + (-> (Predicate a) (Node a) Bit)) + (function (help predicate node) + (case node + (#Base base) + (<array> predicate base) + + (#Hierarchy hierarchy) + (<array> (help predicate) hierarchy))))] + (function (<name> predicate row) + (let [(^slots [#root #tail]) row] + (<op> (help predicate (#Hierarchy root)) + (help predicate (#Base tail)))))))] + + [every? array.every? #1 and] + [any? array.any? #0 or] + ) |