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preview.js
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38 lines (29 loc) · 1.09 KB
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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 "../types";
const IMMUTABLE_FIELDS = ["_root", "__ownerID", "__altered", "__hash"];
const REACT_FIELDS = ["_reactInternalInstance", "_reactInternalFiber"];
export function isImmutablePreview(result: ?Grip) {
return result && isImmutable(result.preview);
}
export function isImmutable(result: ?Grip) {
if (!result || typeof result.ownProperties != "object") {
return;
}
const ownProperties = result.ownProperties;
return IMMUTABLE_FIELDS.every(field =>
Object.keys(ownProperties).includes(field)
);
}
export function isReactComponent(result: ?Grip) {
if (!result || typeof result.ownProperties != "object") {
return;
}
const ownProperties = result.ownProperties;
return REACT_FIELDS.some(field => Object.keys(ownProperties).includes(field));
}
export function isConsole(expression: string) {
return /^console/.test(expression);
}