Function validateMethodOverride

docs/lib/react.js:4783–4795

(isAlreadyDefined, name)

}

function validateMethodOverride(isAlreadyDefined, name) {
  var specPolicy = ReactClassInterface.hasOwnProperty(name) ? ReactClassInterface[name] : null;

  // Disallow overriding of base class methods unless explicitly allowed.
  if (ReactClassMixin.hasOwnProperty(name)) {
    !(specPolicy === SpecPolicy.OVERRIDE_BASE) ? "development" !== 'production' ? invariant(false, 'ReactClassInterface: You are attempting to override ' + '`%s` from your class specification. Ensure that your method names ' + 'do not overlap with React methods.', name) : invariant(false) : void 0;
  }

  // Disallow defining methods more than once unless explicitly allowed.
  if (isAlreadyDefined) {
    !(specPolicy === SpecPolicy.DEFINE_MANY || specPolicy === SpecPolicy.DEFINE_MANY_MERGED) ? "development" !== 'production' ? invariant(false, 'ReactClassInterface: You are attempting to define ' + '`%s` on your component more than once. This conflict may be due ' + 'to a mixin.', name) : invariant(false) : void 0;
  }
}

/**
 * Mixin helper which handles policy validation and reserved