Files
30-seconds-of-code/node_modules/react-redux/es/connect/verifySubselectors.js
2019-08-20 15:52:05 +02:00

17 lines
764 B
JavaScript

import warning from '../utils/warning';
function verify(selector, methodName, displayName) {
if (!selector) {
throw new Error("Unexpected value for " + methodName + " in " + displayName + ".");
} else if (methodName === 'mapStateToProps' || methodName === 'mapDispatchToProps') {
if (!selector.hasOwnProperty('dependsOnOwnProps')) {
warning("The selector for " + methodName + " of " + displayName + " did not specify a value for dependsOnOwnProps.");
}
}
}
export default function verifySubselectors(mapStateToProps, mapDispatchToProps, mergeProps, displayName) {
verify(mapStateToProps, 'mapStateToProps', displayName);
verify(mapDispatchToProps, 'mapDispatchToProps', displayName);
verify(mergeProps, 'mergeProps', displayName);
}