Why does this:
(def ^{:dynamic true} bar 33)
… work to create a dynamic var, but this:
(intern *ns* (with-meta 'foo {:dynamic true}) 33)
… doesn't? (Looking more for the justification than mechanics.)
Occasional consulting on programming technique
Contract programming
There's about 3-4 CLJ tickets related to this. The issue is that :dynamic
is only read once: when the var is created. If you need to change a var to
be dynamic, you can set it manually with .setDynamic.
Personally I think it's simply an artifact of how defs are created, and
it's never been
The issue here is that the documentation for intern says that it:
Finds or creates a var named by the symbol name in the namespace
ns (which can be a symbol or a namespace), setting its root binding
to val if supplied. The namespace must exist. The var will adopt any
metadata from the name
On Jan 3, 2013, at 12:12 PM, Timothy Baldridge tbaldri...@gmail.com wrote:
If you need to change a var to be dynamic, you can set it manually with
.setDynamic.
Perhaps `.setDynamic` should be promoted to be a clojure function? I kind of
wish I didn't have subject-to-change method calls
Perhaps the doc needs to be updated then. The var does indeed adopt all
metadata from the symbol, it just doesn't execute any code based on that
metadata.
Timothy
On Thu, Jan 3, 2013 at 11:17 AM, Aaron Cohen aa...@assonance.org wrote:
The issue here is that the documentation for intern says
