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preview.js
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37 lines (28 loc) · 894 Bytes
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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
// @flow
import type { Grip } from "debugger-html";
const IMMUTABLE_FIELDS = ["_root", "__ownerID", "__altered", "__hash"];
export function isImmutable(result: Grip) {
if (!result || !result.preview) {
return;
}
const ownProperties = result.preview.ownProperties;
if (!ownProperties) {
return;
}
return IMMUTABLE_FIELDS.every(field =>
Object.keys(ownProperties).includes(field)
);
}
export function isReactComponent(result: Grip) {
if (!result || !result.preview) {
return;
}
const ownProperties = result.preview.ownProperties;
if (!ownProperties) {
return;
}
return Object.keys(ownProperties).includes("_reactInternalInstance");
}