Add lazy loading and update README

README.md

@@ -22,6 +22,11 @@ The default configuration for Tern is the browser environment `(:lt.plugins.tern
                        (:lt.plugins.tern/plugin :node true)]}
      :- {:tern.config [:lt.plugins.tern/libs]}}
 
+To setup a configuration for RequireJS:
+
+    {:+ {:tern.config [(:lt.plugins.tern/plugin :requirejs {:baseURL "/home/path/to/project/dir"})
+                       :lt.plugins.tern/lazy-loading]}}
+
 Arguments to `:lt.plugins.tern/libs` can be:
 
 1. One or many built in libs: `:ecma5 :browser :jquery :underscore`

src/lt/plugins/tern.cljs

@@ -325,7 +325,9 @@
                           (.on worker "message" msg)
                           (.on worker "disconnect" dis)
                           (.on worker "exit" dis)
-                          (current-ws-jsfiles init-cb)
+                          (if (object/raise-reduce config :lazy-loading+ false)
+                            (init-cb nil [])
+                            (current-ws-jsfiles init-cb))
                           (object/merge! this {::worker worker})))))
 
 (behavior ::error
@@ -432,6 +434,11 @@
                           (object/update! this [:options :plugins] conj value)))))
 
 
+(behavior ::lazy-loading
+          :triggers #{:lazy-loading+}
+          :reaction (fn [this _ _]
+                      true))
+
 (object/object* ::tern.config
                 :tags #{:tern.config}
                 :options {:libs #{}