Merge pull request #450 from codefori/worksofliam/issue449

Improve handling of undefined references for dot notation

Author: worksofliam

extension/server/src/providers/completionItem.ts

@@ -70,6 +70,11 @@ export default async function completionItemProvider(handler: CompletionParams):
 
 					// Get the possible variable we're referring to
 					const referenceStart = Parser.getReference(tokens, cursorIndex);
+
+					if (referenceStart === undefined) {
+						return [];
+					}
+
 					let tokenIndex = referenceStart;
 
 					let currentDef: Declaration|undefined;

language/parser.ts

@@ -191,6 +191,11 @@ export default class Parser {
       checkNextToken--;
     }
 
+    if (lastToken === -1) return undefined;
+    if (!tokens[lastToken]) return undefined;
+    if (![`word`, `builtin`].includes(tokens[lastToken].type)) {
+      return undefined;
+    }
     return lastToken;
   }