Function verifyHostBindings

packages/compiler/src/render3/view/compiler.ts:584–597

(
  bindings: ParsedHostBindings,
  sourceSpan: ParseSourceSpan,
)

 * @returns array of errors associated with a given set of host bindings.
 */
export function verifyHostBindings(
  bindings: ParsedHostBindings,
  sourceSpan: ParseSourceSpan,
): ParseError[] {
  // TODO: abstract out host bindings verification logic and use it instead of
  // creating events and properties ASTs to detect errors (FW-996)
  const bindingParser = makeBindingParser();
  bindingParser.createDirectiveHostEventAsts(bindings.listeners, sourceSpan);
  bindingParser.createBoundHostProperties(bindings.properties, sourceSpan);

  validateNoEventBindings(bindings, bindingParser, sourceSpan);

  return bindingParser.errors;
}

/**
 * Validates that there are no event attribute bindings in the host bindings.