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Does reader/read-string attach metadata to the forms

I've read somewhere that cljs.reader/read-string attaches metadata to the forms that it creates, like the position in the string read.
Is it true? Is it documented somewhere? Thanks.

Solution

  • read-string doesn't add metadata to the returned form:

    => (meta (cljs.reader/read-string "(prn 0)"))
nil

    Your compiled functions/defs/vars will have this type of metadata though:

    => (meta #'my-fn)
{:ns app.core,
 :name my-fn,
 :file "src/cljs/app/core.cljs",
 :end-column 20,
 :column 1,
 :line 125,
 :end-line 125,
 :arglists ([{:keys [x]}]),
 :doc nil,
 :test nil}