@neo4j-cypher/editor-support/es/completion/rules/rulePropertyLookup.js

Core functionality to support Cypher integration into editors

import * as CypherTypes from "../../lang/CypherTypes";
import * as CompletionTypes from "../CompletionTypes";
export default (element => {
  const lookupContext = element.getParent();
  const text = element.getText();
  if (lookupContext) {
    if (lookupContext instanceof CypherTypes.PROPERTY_LOOKUP_CONTEXT && text === ".") {
      return [{
        type: CompletionTypes.PROPERTY_KEY
      }];
    }
  }
  return [];
});