Skip to content

Add vary-meta #409

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
heyLu merged 3 commits into from
Oct 29, 2015
Merged

Add vary-meta #409

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
ca9150b
add vary-meta
mpenet Oct 27, 2015
854d838
improve metadata
mpenet Oct 28, 2015
4994305
deftest compile down to a function with the same name, so it clashes
mpenet Oct 28, 2015
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
8 changes: 8 additions & 0 deletions pixie/stdlib.pxi
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2717,3 +2717,11 @@ Calling this function on something that is not ISeqable returns a seq with that
(if (satisfies? IComparable x)
(-compare x y)
(throw [::ComparisonError (str x " does not satisfy IComparable")])))

(defn vary-meta
{:doc "Returns x with meta data updated with the application of f and args to it.
ex: (vary-meta x assoc :foo 42)"
:signatures [[x f & args]]
:added "0.1"}
[x f & args]
(with-meta x (apply f (meta x) args)))
3 changes: 3 additions & 0 deletions tests/pixie/tests/test-stdlib.pxi
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -691,3 +691,6 @@
(t/assert= m (map-entry :a 1))
(t/assert= m [:a 1])
(t/assert= m '(:a 1))))

(t/deftest test-vary-meta
(t/assert= 42 (-> {} (vary-meta assoc :foo 42) meta :foo)))