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Rewrite _with

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This commit is contained in:
Kodi Arfer 2019-08-02 14:53:57 -04:00
parent 6cced31738
commit 9ddb3b1031
2 changed files with 14 additions and 16 deletions
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18
hy/core/macros.hy
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@ -48,16 +48,14 @@ be associated in pairs."
(defn _with [node args body]
(if (not (empty? args))
(do
(if (>= (len args) 2)
(do
(setv p1 (.pop args 0)
p2 (.pop args 0)
primary [p1 p2])
`(~node [~@primary] ~(_with node args body)))
`(~node [~@args] ~@body)))
`(do ~@body)))
(if
(not args)
`(do ~@body)
(<= (len args) 2)
`(~node [~@args] ~@body)
True (do
(setv [p1 p2 #* args] args)
`(~node [~p1 ~p2] ~(_with node args body)))))
(defmacro with [args &rest body]

12
tests/native_tests/contrib/walk.hy
View File

@ -43,19 +43,19 @@
(assert (= (macroexpand-all '(foo-walk))
42))
(assert (= (macroexpand-all '(with [a 1]))
'(with* [a 1] (do))))
'(with* [a 1])))
(assert (= (macroexpand-all '(with [a 1 b 2 c 3] (for [d c] foo)))
'(with* [a 1] (with* [b 2] (with* [c 3] (do (for [d c] foo)))))))
'(with* [a 1] (with* [b 2] (with* [c 3] (for [d c] foo))))))
(assert (= (macroexpand-all '(with [a 1]
'(with [b 2])
`(with [c 3]
~(with [d 4])
~@[(with [e 5])])))
'(with* [a 1]
(do '(with [b 2])
`(with [c 3]
~(with* [d 4] (do))
~@[(with* [e 5] (do))])))))
'(with [b 2])
`(with [c 3]
~(with* [d 4])
~@[(with* [e 5])]))))
(defmacro require-macro []
`(do