Fix same null-pointer exception yet again

Author: klesun-itn

resources/META-INF/plugin.xml

@@ -1,7 +1,7 @@
 <idea-plugin>
   <id>lv.midiana.misc.idea-plugins.deep-js-completion</id>
   <name>deep-js-completion</name>
-  <version>2018.10.09.001</version>
+  <version>2018.10.18.001</version>
   <vendor email="safronevev@gmail.com"  url="http://midiana.lv/entry/deep-js-completion">Klesun</vendor>
 
   <description><![CDATA[

src/org/klesun/deep_js_completion/completion_providers/DeepKeysPvdr.scala

@@ -104,13 +104,16 @@ class DeepKeysPvdr extends CompletionProvider[CompletionParameters] {
     val elapsed = System.nanoTime - startTime
     result.addLookupAdvertisement("Resolved in " + (elapsed / 1000000000.0) + " seconds")
 
+    // test
+    // test
+    // test
+    // test
+
     val nameToLookup = ListMap(suggestions.map(t => t.getLookupString -> t) : _*)
     val builtInSuggestions = new util.ArrayList[LookupElement]
-    val jsConfig = JSRootConfiguration.getInstance(psi.getProject)
-    var onlyTyped = false
-    if (jsConfig != null) {
-      onlyTyped = jsConfig.isOnlyTypeBasedCompletion
-    }
+    val project = if (psi != null) psi.getProject else null
+    val jsConfig = if (project != null) JSRootConfiguration.getInstance(project) else null
+    val onlyTyped = if (jsConfig != null) jsConfig.isOnlyTypeBasedCompletion else false
 
     result.runRemainingContributors(parameters, otherSourceResult => {
       val lookup = otherSourceResult.getLookupElement