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-rw-r--r--stdlib/source/lux/codata/cont.lux8
-rw-r--r--stdlib/source/lux/codata/struct/stream.lux4
-rw-r--r--stdlib/test/test/lux/codata/env.lux32
-rw-r--r--stdlib/test/test/lux/codata/io.lux32
-rw-r--r--stdlib/test/test/lux/codata/state.lux51
-rw-r--r--stdlib/test/test/lux/codata/struct/stream.lux150
-rw-r--r--stdlib/test/tests.lux8
7 files changed, 170 insertions, 115 deletions
diff --git a/stdlib/source/lux/codata/cont.lux b/stdlib/source/lux/codata/cont.lux
index b851d417c..ddc15f1f3 100644
--- a/stdlib/source/lux/codata/cont.lux
+++ b/stdlib/source/lux/codata/cont.lux
@@ -5,10 +5,10 @@
(;module:
lux
- (lux (macro (ast #as ast))
- (control (functor #as F #refer #all)
- (applicative #as A #refer #all)
- (monad #as M #refer #all))
+ (lux (macro [ast])
+ (control functor
+ applicative
+ monad)
(data (struct list)))
(.. function))
diff --git a/stdlib/source/lux/codata/struct/stream.lux b/stdlib/source/lux/codata/struct/stream.lux
index 2fd962b38..b76db0f39 100644
--- a/stdlib/source/lux/codata/struct/stream.lux
+++ b/stdlib/source/lux/codata/struct/stream.lux
@@ -86,8 +86,8 @@
[(#;Cons [x tail]) next])
[(list) xs])))]
- [take-while drop-while split-with (-> a Bool) (pred x) pred]
- [take drop split Nat (n.> +0 pred) (n.dec pred)]
+ [take-while drop-while split-while (-> a Bool) (pred x) pred]
+ [take drop split Nat (n.> +0 pred) (n.dec pred)]
)
(def: #export (unfold step init)
diff --git a/stdlib/test/test/lux/codata/env.lux b/stdlib/test/test/lux/codata/env.lux
index 0e24ddf75..a2a90a3af 100644
--- a/stdlib/test/test/lux/codata/env.lux
+++ b/stdlib/test/test/lux/codata/env.lux
@@ -1,3 +1,8 @@
+## Copyright (c) Eduardo Julian. All rights reserved.
+## This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
+## If a copy of the MPL was not distributed with this file,
+## You can obtain one at http://mozilla.org/MPL/2.0/.
+
(;module:
lux
(lux (codata [io])
@@ -6,18 +11,19 @@
text/format
[number])
(codata function
- env))
+ ["&" env]))
lux/test)
-(test: "lux/codata/env exports"
- (test-all (match 123 (run 123 ask))
- (match 246 (run 123 (local (i.* 2) ask)))
- (match 134 (run 123 (:: Functor<Env> map i.inc (i.+ 10))))
- (match 10 (run 123 (:: Applicative<Env> wrap 10)))
- (match 30 (run 123 (let [(^open) Applicative<Env>]
- (apply (wrap (i.+ 10)) (wrap 20)))))
- (match 30 (run 123 (do Monad<Env>
- [f (wrap i.+)
- x (wrap 10)
- y (wrap 20)]
- (wrap (f x y)))))))
+(test: "Envs"
+ ($_ seq
+ (assert "" (i.= 123 (&;run 123 &;ask)))
+ (assert "" (i.= 246 (&;run 123 (&;local (i.* 2) &;ask))))
+ (assert "" (i.= 134 (&;run 123 (:: &;Functor<Env> map i.inc (i.+ 10)))))
+ (assert "" (i.= 10 (&;run 123 (:: &;Applicative<Env> wrap 10))))
+ (assert "" (i.= 30 (&;run 123 (let [(^open "&/") &;Applicative<Env>]
+ (&/apply (&/wrap (i.+ 10)) (&/wrap 20))))))
+ (assert "" (i.= 30 (&;run 123 (do &;Monad<Env>
+ [f (wrap i.+)
+ x (wrap 10)
+ y (wrap 20)]
+ (wrap (f x y))))))))
diff --git a/stdlib/test/test/lux/codata/io.lux b/stdlib/test/test/lux/codata/io.lux
index 916609226..7965869d0 100644
--- a/stdlib/test/test/lux/codata/io.lux
+++ b/stdlib/test/test/lux/codata/io.lux
@@ -1,21 +1,27 @@
+## Copyright (c) Eduardo Julian. All rights reserved.
+## This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
+## If a copy of the MPL was not distributed with this file,
+## You can obtain one at http://mozilla.org/MPL/2.0/.
+
(;module:
lux
(lux (control monad)
- (data [text "Text/" Monoid<Text>]
+ (data [text "Text/" Monoid<Text> Eq<Text>]
text/format
[number])
(codata function
- io))
+ ["&" io]))
lux/test)
-(test: "lux/codata/io exports"
- (test-all (match "YOLO" (run (io "YOLO")))
- (match 11 (run (:: Functor<IO> map i.inc (io 10))))
- (match 10 (run (:: Applicative<IO> wrap 10)))
- (match 30 (run (let [(^open) Applicative<IO>]
- (apply (wrap (i.+ 10)) (wrap 20)))))
- (match 30 (run (do Monad<IO>
- [f (wrap i.+)
- x (wrap 10)
- y (wrap 20)]
- (wrap (f x y)))))))
+(test: "I/O"
+ ($_ seq
+ (assert "" (Text/= "YOLO" (&;run (&;io "YOLO"))))
+ (assert "" (i.= 11 (&;run (:: &;Functor<IO> map i.inc (&;io 10)))))
+ (assert "" (i.= 10 (&;run (:: &;Applicative<IO> wrap 10))))
+ (assert "" (i.= 30 (&;run (let [(^open "&/") &;Applicative<IO>]
+ (&/apply (&/wrap (i.+ 10)) (&/wrap 20))))))
+ (assert "" (i.= 30 (&;run (do &;Monad<IO>
+ [f (wrap i.+)
+ x (wrap 10)
+ y (wrap 20)]
+ (wrap (f x y))))))))
diff --git a/stdlib/test/test/lux/codata/state.lux b/stdlib/test/test/lux/codata/state.lux
index 84c90b5b1..4c4b808b3 100644
--- a/stdlib/test/test/lux/codata/state.lux
+++ b/stdlib/test/test/lux/codata/state.lux
@@ -1,3 +1,8 @@
+## Copyright (c) Eduardo Julian. All rights reserved.
+## This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
+## If a copy of the MPL was not distributed with this file,
+## You can obtain one at http://mozilla.org/MPL/2.0/.
+
(;module:
lux
(lux (codata [io])
@@ -7,28 +12,28 @@
[number]
[product])
(codata function
- state))
+ ["&" state]))
lux/test)
-(test: "lux/codata/state exports"
- (test-all (match 123 (product;right (run 123 get)))
- (match 321 (product;right (run 123 (do Monad<State>
- [_ (put 321)]
- get))))
- (match 369 (product;right (run 123 (do Monad<State>
- [_ (update (i.* 3))]
- get))))
- (match 124 (product;right (run 123 (use i.inc))))
- (match 246 (product;right (run 123 (local (i.* 2) get))))
- (match 124 (product;right (run 123 (:: Functor<State> map i.inc get))))
- (match 10 (product;right (run 123 (:: Applicative<State> wrap 10))))
- (match 30 (product;right (run 123 (let [(^open) Applicative<State>]
- (apply (wrap (i.+ 10)) (wrap 20))))))
- (match 30 (product;right (run 123 (: (State Int Int)
- (do Monad<State>
- [f (wrap i.+)
- x (wrap 10)
- y (wrap 20)]
-
- (wrap (f x y)))))))
- ))
+(test: "State"
+ ($_ seq
+ (assert "" (i.= 123 (product;right (&;run 123 &;get))))
+ (assert "" (i.= 321 (product;right (&;run 123 (do &;Monad<State>
+ [_ (&;put 321)]
+ &;get)))))
+ (assert "" (i.= 369 (product;right (&;run 123 (do &;Monad<State>
+ [_ (&;update (i.* 3))]
+ &;get)))))
+ (assert "" (i.= 124 (product;right (&;run 123 (&;use i.inc)))))
+ (assert "" (i.= 246 (product;right (&;run 123 (&;local (i.* 2) &;get)))))
+ (assert "" (i.= 124 (product;right (&;run 123 (:: &;Functor<State> map i.inc &;get)))))
+ (assert "" (i.= 10 (product;right (&;run 123 (:: &;Applicative<State> wrap 10)))))
+ (assert "" (i.= 30 (product;right (&;run 123 (let [(^open "&/") &;Applicative<State>]
+ (&/apply (&/wrap (i.+ 10)) (&/wrap 20)))))))
+ (assert "" (i.= 30 (product;right (&;run 123 (: (&;State Int Int)
+ (do &;Monad<State>
+ [f (wrap i.+)
+ x (wrap 10)
+ y (wrap 20)]
+ (wrap (f x y))))))))
+ ))
diff --git a/stdlib/test/test/lux/codata/struct/stream.lux b/stdlib/test/test/lux/codata/struct/stream.lux
index 1da81aa02..c9397b1a3 100644
--- a/stdlib/test/test/lux/codata/struct/stream.lux
+++ b/stdlib/test/test/lux/codata/struct/stream.lux
@@ -1,3 +1,8 @@
+## Copyright (c) Eduardo Julian. All rights reserved.
+## This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
+## If a copy of the MPL was not distributed with this file,
+## You can obtain one at http://mozilla.org/MPL/2.0/.
+
(;module:
lux
(lux (codata [io])
@@ -5,64 +10,97 @@
comonad)
(data [text "Text/" Monoid<Text>]
text/format
- [number "Int/" Codec<Text,Int>])
+ (struct [list])
+ [number "Nat/" Codec<Text,Nat>])
(codata function
[cont]
- (struct stream)))
+ (struct ["&" stream]))
+ (math ["R" random])
+ pipe)
lux/test)
-(test: "lux/codata/stream exports"
- (let% [<take+drop+split> (do-template [<take> <drop> <split> <arg>]
- [(match (^ (list 0 1 2))
- (<take> <arg> (iterate i.inc 0)))
- (match (^=> (^stream& w x y z ...)
- {[w x y z] [3 4 5 6]})
- (<drop> <arg> (iterate i.inc 0)))
- (match (^=> (^ [(list 0 1 2) _stream_])
- {_stream_ (^stream& w x y z ...)}
- {[w x y z] [3 4 5 6]})
- (<split> <arg> (iterate i.inc 0)))]
+(test: "Streams"
+ [size (|> R;nat (:: @ map (|>. (n.% +100) (n.max +1))))
+ offset (|> R;nat (:: @ map (n.% +100)))
+ factor (|> R;nat (:: @ map (|>. (n.% +100) (n.max +1))))
+ elem R;nat
+ cycle-seed (R;list size R;nat)
+ cycle-sample-idx (|> R;nat (:: @ map (n.% +1000)))
+ #let [(^open "List/") (list;Eq<List> number;Eq<Nat>)
+ sample0 (&;iterate n.inc +0)
+ sample1 (&;iterate n.inc offset)]]
+ ($_ seq
+ (assert "Can move along a stream and take slices off it."
+ (and (and (List/= (list;n.range +0 size)
+ (&;take size sample0))
+ (List/= (list;n.range offset (n.+ offset size))
+ (&;take size (&;drop offset sample0)))
+ (let [[drops takes...] (&;split size sample0)]
+ (and (List/= (list;n.range +0 size)
+ drops)
+ (List/= (list;n.range size (n.* +2 size))
+ (&;take size takes...)))))
+ (and (List/= (list;n.range +0 size)
+ (&;take-while (n.< size) sample0))
+ (List/= (list;n.range offset (n.+ offset size))
+ (&;take-while (n.< (n.+ offset size))
+ (&;drop-while (n.< offset) sample0)))
+ (let [[drops takes...] (&;split-while (n.< size) sample0)]
+ (and (List/= (list;n.range +0 size)
+ drops)
+ (List/= (list;n.range size (n.* +2 size))
+ (&;take-while (n.< (n.* +2 size)) takes...)))))
+ ))
+
+ (assert "Can repeat any element and infinite number of times."
+ (n.= elem (&;at offset (&;repeat elem))))
+
+ (assert "Can obtain the head & tail of a stream."
+ (and (n.= offset (&;head sample1))
+ (List/= (list;n.range offset (n.+ offset size))
+ (&;take size (&;tail sample1)))))
+
+ (assert "Can filter streams."
+ (and (n.= (n.* +2 offset)
+ (&;at offset
+ (&;filter n.even? sample0)))
+ (let [[evens odds] (&;partition n.even? (&;iterate n.inc +0))]
+ (and (n.= (n.* +2 offset)
+ (&;at offset evens))
+ (n.= (n.inc (n.* +2 offset))
+ (&;at offset odds))))))
+
+ (assert "Functor goes over 'all' elements in a stream."
+ (let [(^open "&/") &;Functor<Stream>
+ there (&/map (n.* factor) sample0)
+ back-again (&/map (n./ factor) there)]
+ (and (not (List/= (&;take size sample0)
+ (&;take size there)))
+ (List/= (&;take size sample0)
+ (&;take size back-again)))))
+
+ (assert "CoMonad produces a value for every element in a stream."
+ (let [(^open "&/") &;Functor<Stream>]
+ (List/= (&;take size (&/map (n.* factor) sample1))
+ (&;take size
+ (be &;CoMonad<Stream>
+ [inputs sample1]
+ (n.* factor (&;head inputs)))))))
+
+ (assert "'unfold' generalizes 'iterate'."
+ (let [(^open "&/") &;Functor<Stream>
+ (^open "List/") (list;Eq<List> text;Eq<Text>)]
+ (List/= (&;take size
+ (&/map Nat/encode (&;iterate n.inc offset)))
+ (&;take size
+ (&;unfold (lambda [n] [(n.inc n) (Nat/encode n)])
+ offset)))))
- [take drop split +3]
- [take-while drop-while split-with (i.< 3)])
- ]
- (test-all (match (^=> (^stream& w x y z ...)
- {[w x y z] [0 1 2 3]})
- (iterate i.inc 0))
- (match (^=> (^stream& w x y z ...)
- {[w x y z] [0 0 0 0]})
- (repeat 0))
- (match (^=> (#;Some the-stream)
- {the-stream (^stream& w x y z ...)}
- {[w x y z] [0 1 0 1]})
- (cycle (list 0 1)))
- (match 0 (head (iterate i.inc 0)))
- (match (^=> (^stream& w x y z ...)
- {[w x y z] [1 2 3 4]})
- (tail (iterate i.inc 0)))
- (match 9 (at +9 (iterate i.inc 0)))
- (match 0 (at +0 (iterate i.inc 0)))
- <take+drop+split>
- (match (^=> (^stream& w x y z ...)
- {[w x y z] ["0" "1" "2" "3"]})
- (unfold (lambda [n] [(i.inc n) (Int/encode n)])
- 0))
- (match (^=> (^stream& w x y z ...)
- {[w x y z] [0 2 4 6]})
- (filter even? (iterate i.inc 0)))
- (match (^=> [e_stream o_stream]
- {e_stream (^stream& w x y z ...)}
- {o_stream (^stream& a b c d ...)}
- {[w x y z a b c d] [0 2 4 6 1 3 5 7]})
- (partition even? (iterate i.inc 0)))
- (match (^=> (^stream& w x y z ...)
- {[w x y z] [0 1 4 9]})
- (let [square (lambda [n] (i.* n n))]
- (:: Functor<Stream> map square (iterate i.inc 0))))
- (match (^=> (^stream& w x y z ...)
- {[w x y z] [4 9 16 25]})
- (let [square (lambda [n] (i.* n n))]
- (be CoMonad<Stream>
- [inputs (iterate i.inc 2)]
- (square (head inputs)))))
- )))
+ (assert "Can cycle over the same elements as an infinite stream."
+ (|> (&;cycle cycle-seed)
+ (default (undefined))
+ (&;at cycle-sample-idx)
+ (n.= (default (undefined)
+ (list;at (n.% size cycle-sample-idx)
+ cycle-seed)))))
+ ))
diff --git a/stdlib/test/tests.lux b/stdlib/test/tests.lux
index 5314c2923..de1487b34 100644
--- a/stdlib/test/tests.lux
+++ b/stdlib/test/tests.lux
@@ -12,6 +12,10 @@
[test])
(test lux
(lux ["_;" cli]
+ (codata ["_;" io]
+ [env]
+ [state]
+ (struct [stream]))
(data [bit]
[bool]
[char]
@@ -38,10 +42,6 @@
)
(text [format])
)
- ## (codata ["_;" io]
- ## [env]
- ## [state]
- ## (struct [stream]))
## (macro [ast]
## [syntax])
## [type]
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-25 15:30:11 +0000