ember-template-lint/lib/helpers/is-angle-bracket-component.js

Linter for Ember or Handlebars templates.

function isDynamicComponent(scope, element) {
  let open = element.tag.charAt(0);

  let isLocal = scope.isLocal(element);
  let isNamedArgument = open === '@';
  let isThisPath = element.tag.indexOf('this.') === 0;
  return isLocal || isNamedArgument || isThisPath;
}

export default function isAngleBracketComponent(scope, element) {
  let open = element.tag.charAt(0);
  let isPath = element.tag.includes('.');

  let isUpperCase = open === open.toUpperCase() && open !== open.toLowerCase();

  return (isUpperCase && !isPath) || isDynamicComponent(scope, element);
}