functions -> forms in lib.macros
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@@ -19,7 +19,7 @@
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(in-package :lib.macros)
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(defmacro --> (&rest functions)
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(defmacro --> (&rest forms)
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"Lexically bind current form as `_' for use in the next form, returning the
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result of the last form.
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@@ -34,30 +34,29 @@ i.e.
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Also includes transformer where symbols are considered unary functions i.e.
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(--> x y) <-> (--> x (y _)).
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"
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(if (null functions)
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(if (null forms)
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nil
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(let ((assignment-forms
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(loop :for f :in functions
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(loop :for f :in forms
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:for canon-f = (if (symbolp f) (list f 'lib.macros:_) f)
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:collect `(lib.macros:_ ,canon-f))))
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`(let* ,assignment-forms
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lib.macros:_))))
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(defmacro ->> (&rest functions)
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(defmacro ->> (&rest forms)
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"Make current form the last argument of the next form, returning the last
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form.
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i.e.
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(->> (a1 a2...) (b1 b2...) (c1 c2...)) == (c1 c2 ... (b1 b2 ... (a1 a2 ...)))
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Also includes transformer where fun in functions that are symbols are considered
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unary functions.
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Also includes transformer where symbols are considered unary functions.
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Like the `|>' operator in Ocaml."
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(if (null functions)
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(if (null forms)
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nil
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(loop :with acc = (car functions)
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:for func :in (cdr functions)
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(loop :with acc = (car forms)
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:for func :in (cdr forms)
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:for canon-func = (if (symbolp func) (list func) func)
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:do (setq acc (append canon-func (list acc)))
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:finally (return acc))))
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