bpmnlint/rules/single-event-definition.js

Validate your BPMN diagrams based on configurable lint rules

const {
  is
} = require('bpmnlint-utils');

const {
  annotateRule
} = require('./helper');


/**
 * A rule that verifies that an event contains maximum one event definition.
 *
 * @type { import('../lib/types.js').RuleFactory }
 */
module.exports = function() {

  function check(node, reporter) {

    if (!is(node, 'bpmn:Event')) {
      return;
    }

    const eventDefinitions = node.eventDefinitions || [];

    if (eventDefinitions.length > 1) {
      reporter.report(node.id, 'Event has multiple event definitions', [ 'eventDefinitions' ]);
    }
  }

  return annotateRule('single-event-definition', {
    check
  });

};