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CLJS-574: No warnings when calling functions from unrequired namespaces

Change resolve-ns-alias to special case cljs.core, goog, and Math
namespaces. Special case convention around cljs.core data structures,
but don't support elsewhere. Emit a "no such namespace" warning if we
don't find ns in (-> env :ns :requires).
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1 parent 10c445c commit 4769c5e05233d9841aedf882bd99812d0f842abb @swannodette swannodette committed Oct 5, 2013
Showing with 18 additions and 2 deletions.
  1. +18 −2 src/clj/cljs/analyzer.clj
20 src/clj/cljs/analyzer.clj
@@ -168,6 +168,19 @@
(let [sym (symbol name)]
(get (:requires (:ns env)) sym sym)))
+(defn confirm-ns [env ns-sym]
+ (condp get ns-sym
+ '#{cljs.core goog Math} :>> identity
+ (-> env :ns :requires) :>> identity
+ ;; our internal conventions around data structures
+ ;; should not be allowed elsewhere
+ (if-not (== (.indexOf (str ns-sym) "cljs.core") -1)
+ ns-sym
+ (do (when (:undeclared *cljs-warnings*)
+ (warning env
+ (str "WARNING: No such namespace: " ns-sym)))
+ ns-sym))))
(defn core-name?
"Is sym visible from core in the current compilation namespace?"
[env sym]
@@ -191,6 +204,7 @@
ns (if (= "clojure.core" ns) "cljs.core" ns)
full-ns (resolve-ns-alias env ns)]
(when confirm
+ (confirm-ns env full-ns)
(confirm env full-ns (symbol (name sym))))
(merge (get-in @namespaces [full-ns :defs (symbol (name sym))])
{:name (symbol (str full-ns) (str (name sym)))
@@ -730,8 +744,10 @@
(error-msg spec ":refer must be followed by a sequence of symbols in :require / :require-macros"))
(when-not macros?
(swap! deps conj lib))
- (merge (when alias {rk {alias lib}})
- (when referred {uk (apply hash-map (interleave referred (repeat lib)))})))))
+ (merge
+ (when alias
+ {rk (merge {alias lib} {lib lib})})
+ (when referred {uk (apply hash-map (interleave referred (repeat lib)))})))))
use->require (fn use->require [[lib kw referred :as spec]]
(assert (and (symbol? lib) (= :only kw) (sequential? referred) (every? symbol? referred))
(error-msg spec "Only [lib.ns :only (names)] specs supported in :use / :use-macros"))

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