Better handle when no reference for dot is found

Signed-off-by: worksofliam <[email protected]>

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 +191,8 @@ export default class Parser {
       checkNextToken--;
     }
 
+    if (lastToken === -1) return undefined;
+
     return lastToken;
   }