feat: support clojure.core/get arity 3
#87
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https://clojure.github.io/clojure/clojure.core-api.html#clojure.core/get > Returns the value mapped to key, not-found or nil if key not present. (get map key) ;; supported prior to this commit (get map key not-found) ;; supported as of this commit
phrohdoh
commented
Jul 15, 2021
| let map = persistent_list_map!(map_entry!("x", "v")); | ||
| let key = Keyword::intern("k").to_rc_value(); | ||
| let default = Keyword::intern("not-found").to_rc_value(); | ||
| let val: Rc<Value> = map.get_with_default(&key, &default); |
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I did not intend to leave these type annotations in.
- remove type annotations in
get_with_defaultandget_with_default_emptytests
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See phrohdoh/cljrs@ceb3f9e for changes building on top of this PR to support map and keyword application default values: ({:k :v} :x) ;; => nil
({:k :v} :x :not-found) ;; => :not-found
(:x {:k :v}) ;; => nil
(:x {:k :v} :not-found) ;; => :not-found |
Tko1
approved these changes
Apr 18, 2023
| pmap.get_with_default(key, not_found) | ||
| } else { | ||
| pmap.get(key) | ||
| }.to_value(); |
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Last part I'd like to add then is a test for GetFn (including one covering the original 2 arg'd GetFn we never wrote)
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https://clojure.github.io/clojure/clojure.core-api.html#clojure.core/get
Instead of adding a
not_found: Option<&Rc<Value>toIPersistentMap::get(to be threaded through all nested calls and a seemingly-arbitrary default to::getcallsites) I opted to continue the*_with_*convention; creating aget_with_defaultfunction.If merged, this would fix #86 (for maps, but I, perhaps incorrectly, recall reading that
getcan be applied to non-maps, though the linked docs certainly do not suggest so).