mirror of
https://github.com/janet-lang/janet
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db631097b1
This commit adds support for using & _ syntax to bind the remaining values in an array in the match macro. The commit also adds a few tests for the new syntax in suite0008
360 lines
13 KiB
Plaintext
360 lines
13 KiB
Plaintext
# Copyright (c) 2021 Calvin Rose & contributors
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to
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# deal in the Software without restriction, including without limitation the
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# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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# sell copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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# IN THE SOFTWARE.
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(import ./helper :prefix "" :exit true)
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(start-suite 8)
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###
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### Compiling brainfuck to Janet.
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###
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(def- bf-peg
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"Peg for compiling brainfuck into a Janet source ast."
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(peg/compile
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~{:+ (/ '(some "+") ,(fn [x] ~(+= (DATA POS) ,(length x))))
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:- (/ '(some "-") ,(fn [x] ~(-= (DATA POS) ,(length x))))
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:> (/ '(some ">") ,(fn [x] ~(+= POS ,(length x))))
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:< (/ '(some "<") ,(fn [x] ~(-= POS ,(length x))))
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:. (* "." (constant (prinf "%c" (get DATA POS))))
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:loop (/ (* "[" :main "]") ,(fn [& captures]
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~(while (not= (get DATA POS) 0)
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,;captures)))
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:main (any (+ :s :loop :+ :- :> :< :.))}))
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(defn bf
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"Run brainfuck."
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[text]
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(eval
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~(let [DATA (array/new-filled 100 0)]
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(var POS 50)
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,;(peg/match bf-peg text))))
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(defn test-bf
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"Test some bf for expected output."
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[input output]
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(def b @"")
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(with-dyns [:out b]
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(bf input))
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(assert (= (string output) (string b))
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(string "bf input '"
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input
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"' failed, expected "
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(describe output)
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", got "
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(describe (string b))
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".")))
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(test-bf "++++++++[>++++[>++>+++>+++>+<<<<-]>+>+>->>+[<]<-]>>.>---.+++++++..+++.>>.<-.<.+++.------.--------.>>+.>++." "Hello World!\n")
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(test-bf ">++++++++[-<+++++++++>]<.>>+>-[+]++>++>+++[>[->+++<<+++>]<<]>-----.>->
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+++..+++.>-.<<+[>[+>+]>>]<--------------.>>.+++.------.--------.>+.>+."
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"Hello World!\n")
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(test-bf "+[+[<<<+>>>>]+<-<-<<<+<++]<<.<++.<++..+++.<<++.<---.>>.>.+++.------.>-.>>--."
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"Hello, World!")
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# Prompts and Labels
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(assert (= 10 (label a (for i 0 10 (if (= i 5) (return a 10))))) "label 1")
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(defn recur
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[lab x y]
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(when (= x y) (return lab :done))
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(def res (label newlab (recur (or lab newlab) (+ x 1) y)))
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(if lab :oops res))
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(assert (= :done (recur nil 0 10)) "label 2")
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(assert (= 10 (prompt :a (for i 0 10 (if (= i 5) (return :a 10))))) "prompt 1")
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(defn- inner-loop
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[i]
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(if (= i 5)
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(return :a 10)))
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(assert (= 10 (prompt :a (for i 0 10 (inner-loop i)))) "prompt 2")
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(defn- inner-loop2
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[i]
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(try
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(if (= i 5)
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(error 10))
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([err] (return :a err))))
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(assert (= 10 (prompt :a (for i 0 10 (inner-loop2 i)))) "prompt 3")
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# Match checks
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(assert (= :hi (match nil nil :hi)) "match 1")
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(assert (= :hi (match {:a :hi} {:a a} a)) "match 2")
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(assert (= nil (match {:a :hi} {:a a :b b} a)) "match 3")
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(assert (= nil (match [1 2] [a b c] a)) "match 4")
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(assert (= 2 (match [1 2] [a b] b)) "match 5")
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(assert (= [2 :a :b] (match [1 2 :a :b] [o & rest] rest)) "match 6")
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(assert (= [] (match @[:a] @[x & r] r :fallback)) "match 7")
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(assert (= :fallback (match @[1] @[x y & r] r :fallback)) "match 8")
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(assert (= [1 2 3 4] (match @[1 2 3 4] @[x y z & r] [x y z ;r] :fallback)) "match 9")
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# And/or checks
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(assert (= false (and false false)) "and 1")
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(assert (= false (or false false)) "or 1")
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# #300 Regression test
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# Just don't segfault
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(assert (peg/match '{:main (replace "S" {"S" :spade})} "S7") "regression #300")
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# Test cases for #293
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(assert (= :yes (match [1 2 3] [_ a _] :yes :no)) "match wildcard 1")
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(assert (= :no (match [1 2 3] [__ a __] :yes :no)) "match wildcard 2")
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(assert (= :yes (match [1 2 [1 2 3]] [_ a [_ _ _]] :yes :no)) "match wildcard 3")
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(assert (= :yes (match [1 2 3] (_ (even? 2)) :yes :no)) "match wildcard 4")
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(assert (= :yes (match {:a 1} {:a _} :yes :no)) "match wildcard 5")
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(assert (= false (match {:a 1 :b 2 :c 3} {:a a :b _ :c _ :d _} :no {:a _ :b _ :c _} false :no)) "match wildcard 6")
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(assert (= nil (match {:a 1 :b 2 :c 3} {:a a :b _ :c _ :d _} :no {:a _ :b _ :c _} nil :no)) "match wildcard 7")
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(assert (= "t" (match [true nil] [true _] "t")) "match wildcard 8")
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# Regression #301
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(def b (buffer/new-filled 128 0x78))
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(assert (= 38 (length (buffer/blit @"" b -1 90))) "buffer/blit 1")
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(def a @"abcdefghijklm")
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(assert (deep= @"abcde" (buffer/blit @"" a -1 0 5)) "buffer/blit 2")
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(assert (deep= @"bcde" (buffer/blit @"" a -1 1 5)) "buffer/blit 3")
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(assert (deep= @"cde" (buffer/blit @"" a -1 2 5)) "buffer/blit 4")
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(assert (deep= @"de" (buffer/blit @"" a -1 3 5)) "buffer/blit 5")
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# chr
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(assert (= (chr "a") 97) "chr 1")
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# Detaching closure over non resumable fiber.
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(do
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(defn f1
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[a]
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(defn f1 [] (++ (a 0)))
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(defn f2 [] (++ (a 0)))
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(error [f1 f2]))
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(def [_ [f1 f2]] (protect (f1 @[0])))
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# At time of writing, mark phase can detach closure envs.
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(gccollect)
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(assert (= 1 (f1)) "detach-non-resumable-closure 1")
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(assert (= 2 (f2)) "detach-non-resumable-closure 2"))
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# Marshal closure over non resumable fiber.
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(do
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(defn f1
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[a]
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(defn f1 [] (++ (a 0)))
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(defn f2 [] (++ (a 0)))
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(error [f1 f2]))
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(def [_ tup] (protect (f1 @[0])))
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(def [f1 f2] (unmarshal (marshal tup make-image-dict) load-image-dict))
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(assert (= 1 (f1)) "marshal-non-resumable-closure 1")
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(assert (= 2 (f2)) "marshal-non-resumable-closure 2"))
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# Marshal closure over currently alive fiber.
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(do
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(defn f1
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[a]
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(defn f1 [] (++ (a 0)))
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(defn f2 [] (++ (a 0)))
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(marshal [f1 f2] make-image-dict))
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(def [f1 f2] (unmarshal (f1 @[0]) load-image-dict))
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(assert (= 1 (f1)) "marshal-live-closure 1")
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(assert (= 2 (f2)) "marshal-live-closure 2"))
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(do
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(var a 1)
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(defn b [x] (+ a x))
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(def c (unmarshal (marshal b)))
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(assert (= 2 (c 1)) "marshal-on-stack-closure 1"))
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# Reduce2
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(assert (= (reduce + 0 (range 1 10)) (reduce2 + (range 10))) "reduce2 1")
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(assert (= (reduce * 1 (range 2 10)) (reduce2 * (range 1 10))) "reduce2 2")
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(assert (= nil (reduce2 * [])) "reduce2 3")
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# Accumulate
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(assert (deep= (accumulate + 0 (range 5)) @[0 1 3 6 10]) "accumulate 1")
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(assert (deep= (accumulate2 + (range 5)) @[0 1 3 6 10]) "accumulate2 1")
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(assert (deep= @[] (accumulate2 + [])) "accumulate2 2")
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(assert (deep= @[] (accumulate 0 + [])) "accumulate 2")
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# Perm strings
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(assert (= (os/perm-int "rwxrwxrwx") 8r777) "perm 1")
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(assert (= (os/perm-int "rwxr-xr-x") 8r755) "perm 2")
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(assert (= (os/perm-int "rw-r--r--") 8r644) "perm 3")
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(assert (= (band (os/perm-int "rwxrwxrwx") 8r077) 8r077) "perm 4")
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(assert (= (band (os/perm-int "rwxr-xr-x") 8r077) 8r055) "perm 5")
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(assert (= (band (os/perm-int "rw-r--r--") 8r077) 8r044) "perm 6")
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(assert (= (os/perm-string 8r777) "rwxrwxrwx") "perm 7")
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(assert (= (os/perm-string 8r755) "rwxr-xr-x") "perm 8")
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(assert (= (os/perm-string 8r644) "rw-r--r--") "perm 9")
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# Issue #336 cases - don't segfault
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(assert-error "unmarshal errors 1" (unmarshal @"\xd6\xb9\xb9"))
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(assert-error "unmarshal errors 2" (unmarshal @"\xd7bc"))
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(assert-error "unmarshal errors 3" (unmarshal "\xd3\x01\xd9\x01\x62\xcf\x03\x78\x79\x7a" load-image-dict))
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(assert-error "unmarshal errors 4"
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(unmarshal
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@"\xD7\xCD\0e/p\x98\0\0\x03\x01\x01\x01\x02\0\0\x04\0\xCEe/p../tools
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\0\0\0/afl\0\0\x01\0erate\xDE\xDE\xDE\xDE\xDE\xDE\xDE\xDE\xDE\xDE
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\xA8\xDE\xDE\xDE\xDE\xDE\xDE\0\0\0\xDE\xDE_unmarshal_testcase3.ja
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neldb\0\0\0\xD8\x05printG\x01\0\xDE\xDE\xDE'\x03\0marshal_tes/\x02
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\0\0\0\0\0*\xFE\x01\04\x02\0\0'\x03\0\r\0\r\0\r\0\r" load-image-dict))
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(gccollect)
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# in vs get regression
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(assert (nil? (first @"")) "in vs get 1")
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(assert (nil? (last @"")) "in vs get 1")
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# For undefined behavior sanitizer
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0xf&1fffFFFF
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# Tuple comparison
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(assert (< [1 2 3] [2 2 3]) "tuple comparison 1")
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(assert (< [1 2 3] [2 2]) "tuple comparison 2")
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(assert (< [1 2 3] [2 2 3 4]) "tuple comparison 3")
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(assert (< [1 2 3] [1 2 3 4]) "tuple comparison 4")
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(assert (< [1 2 3] [1 2 3 -1]) "tuple comparison 5")
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(assert (> [1 2 3] [1 2]) "tuple comparison 6")
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# Lenprefix rule
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(def peg (peg/compile ~(* (lenprefix (/ (* '(any (if-not ":" 1)) ":") ,scan-number) 1) -1)))
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(assert (peg/match peg "5:abcde") "lenprefix 1")
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(assert (not (peg/match peg "5:abcdef")) "lenprefix 2")
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(assert (not (peg/match peg "5:abcd")) "lenprefix 3")
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# Packet capture
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(def peg2
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(peg/compile
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~{# capture packet length in tag :header-len
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:packet-header (* (/ ':d+ ,scan-number :header-len) ":")
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# capture n bytes from a backref :header-len
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:packet-body '(lenprefix (-> :header-len) 1)
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# header, followed by body, and drop the :header-len capture
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:packet (/ (* :packet-header :packet-body) ,|$1)
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# any exact seqence of packets (no extra characters)
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:main (* (any :packet) -1)}))
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(assert (deep= @["a" "bb" "ccc"] (peg/match peg2 "1:a2:bb3:ccc")) "lenprefix 4")
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(assert (deep= @["a" "bb" "cccccc"] (peg/match peg2 "1:a2:bb6:cccccc")) "lenprefix 5")
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(assert (= nil (peg/match peg2 "1:a2:bb:5:cccccc")) "lenprefix 6")
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(assert (= nil (peg/match peg2 "1:a2:bb:7:cccccc")) "lenprefix 7")
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# Regression #400
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(assert (= nil (while (and false false) (fn []) (error "should not happen"))) "strangeloop 1")
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(assert (= nil (while (not= nil nil) (fn []) (error "should not happen"))) "strangeloop 2")
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# Issue #412
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(assert (peg/match '(* "a" (> -1 "a") "b") "abc") "lookhead does not move cursor")
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(def peg3
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~{:main (* "(" (thru ")"))})
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(def peg4 (peg/compile ~(* (thru "(") '(to ")"))))
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(assert (peg/match peg3 "(12345)") "peg thru 1")
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(assert (not (peg/match peg3 " (12345)")) "peg thru 2")
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(assert (not (peg/match peg3 "(12345")) "peg thru 3")
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(assert (= "abc" (0 (peg/match peg4 "123(abc)"))) "peg thru/to 1")
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(assert (= "abc" (0 (peg/match peg4 "(abc)"))) "peg thru/to 2")
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(assert (not (peg/match peg4 "123(abc")) "peg thru/to 3")
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(def peg5 (peg/compile [3 "abc"]))
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(assert (:match peg5 "abcabcabc") "repeat alias 1")
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(assert (:match peg5 "abcabcabcac") "repeat alias 2")
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(assert (not (:match peg5 "abcabc")) "repeat alias 3")
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(defn check-jdn [x]
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(assert (deep= (parse (string/format "%j" x)) x) "round trip jdn"))
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(check-jdn 0)
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(check-jdn nil)
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(check-jdn [])
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(check-jdn @[[] [] 1231 9.123123 -123123 0.1231231230001])
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(check-jdn -0.123123123123)
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(check-jdn 12837192371923)
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(check-jdn "a string")
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(check-jdn @"a buffer")
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# Issue 428
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(var result nil)
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(defn f [] (yield {:a :ok}))
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(assert-no-error "issue 428 1" (loop [{:a x} :in (fiber/new f)] (set result x)))
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(assert (= result :ok) "issue 428 2")
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# Inline 3 argument get
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(assert (= 10 (do (var a 10) (set a (get '{} :a a)))) "inline get 1")
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# Keyword and Symbol slice
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(assert (= :keyword (keyword/slice "some_keyword_slice" 5 12)) "keyword slice")
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(assert (= 'symbol (symbol/slice "some_symbol_slice" 5 11)) "symbol slice")
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# Peg find and find-all
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(def p "/usr/local/bin/janet")
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(assert (= (peg/find '"n/" p) 13) "peg find 1")
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(assert (not (peg/find '"t/" p)) "peg find 2")
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(assert (deep= (peg/find-all '"/" p) @[0 4 10 14]) "peg find-all")
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# Peg replace and replace-all
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(var ti 0)
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(defn check-replacer
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[x y z]
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(assert (= (string/replace x y z) (string (peg/replace x y z))) "replacer test replace")
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(assert (= (string/replace-all x y z) (string (peg/replace-all x y z))) "replacer test replace-all"))
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(check-replacer "abc" "Z" "abcabcabcabasciabsabc")
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(check-replacer "abc" "Z" "")
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(check-replacer "aba" "ZZZZZZ" "ababababababa")
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(check-replacer "aba" "" "ababababababa")
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# Peg bug
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(assert (deep= @[] (peg/match '(any 1) @"")) "peg empty pattern 1")
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(assert (deep= @[] (peg/match '(any 1) (buffer))) "peg empty pattern 2")
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(assert (deep= @[] (peg/match '(any 1) "")) "peg empty pattern 3")
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(assert (deep= @[] (peg/match '(any 1) (string))) "peg empty pattern 4")
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(assert (deep= @[] (peg/match '(* "test" (any 1)) @"test")) "peg empty pattern 5")
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(assert (deep= @[] (peg/match '(* "test" (any 1)) (buffer "test"))) "peg empty pattern 6")
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# number pattern
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(assert (deep= @[111] (peg/match '(number :d+) "111")) "simple number capture 1")
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(assert (deep= @[255] (peg/match '(number :w+) "0xff")) "simple number capture 2")
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# quoted match test
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(assert (= :yes (match 'john 'john :yes _ :nope)) "quoted literal match 1")
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(assert (= :nope (match 'john ''john :yes _ :nope)) "quoted literal match 2")
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(end-suite)
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