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Clarify as-> docstring

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Matthew Egan Odendahl 2016-06-19 21:14:16 -06:00 committed by GitHub
parent 7e13bb4e5f
commit e0ecaca315
1 changed files with 5 additions and 4 deletions
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9
hy/core/macros.hy
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@ -31,10 +31,11 @@
[hy._compat [PY33 PY34]])
(defmacro as-> [head name &rest rest]
"Becomes ordered assignments to the provided name. The previous result
is thus available in each form. Returns the final result, and leaves the name
bound to it in the local scope. This behaves like the threading macros, but
requires you to specify the threading point per form via the name."
"Expands to sequence of assignments to the provided name, starting with head.
The previous result is thus available in the subsequent form. Returns the
final result, and leaves the name bound to it in the local scope. This behaves
much like the other threading macros, but requires you to specify the threading
point per form via the name instead of always the first or last arument."
`(do (setv
~name ~head
~@(interleave (repeat name) rest))