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add support for & _ to match macro

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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
This commit is contained in:
Ian Shehadeh
2022-01-19 13:29:34 -05:00
parent 0d31674166
commit db631097b1
2 changed files with 28 additions and 6 deletions
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4
test/suite0008.janet
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@@ -106,6 +106,10 @@
(assert (= nil (match {:a :hi} {:a a :b b} a)) "match 3")
(assert (= nil (match [1 2] [a b c] a)) "match 4")
(assert (= 2 (match [1 2] [a b] b)) "match 5")
(assert (= [2 :a :b] (match [1 2 :a :b] [o & rest] rest)) "match 6")
(assert (= [] (match @[:a] @[x & r] r :fallback)) "match 7")
(assert (= :fallback (match @[1] @[x y & r] r :fallback)) "match 8")
(assert (= [1 2 3 4] (match @[1 2 3 4] @[x y z & r] [x y z ;r] :fallback)) "match 9")
# And/or checks