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React DevTools: Show symbols used as keys in state #19786

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merged 9 commits into from
Sep 14, 2020
Merged

React DevTools: Show symbols used as keys in state #19786

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5134885
Support Symbol as key
omarsy Sep 7, 2020
ef7cdf5
correct lint error
omarsy Sep 8, 2020
71ab637
add symbole test
omarsy Sep 8, 2020
7caa608
correct lint
omarsy Sep 8, 2020
f51b99a
create getAllEnumerableKeys method
omarsy Sep 8, 2020
de1bfae
Add all symbol enumerable
omarsy Sep 11, 2020
db09127
fix lint error
omarsy Sep 11, 2020
dbf29c3
fix flow issue
omarsy Sep 11, 2020
6b06f41
Minor tweaks to DevTools test data
Sep 14, 2020
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6 changes: 3 additions & 3 deletions packages/react-devtools-shared/src/__tests__/inspectedElementContext-test.js
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Original file line number Diff line number Diff line change
Expand Up @@ -530,7 +530,7 @@ describe('InspectedElementContext', () => {
['second', mapShallow],
]);
const objectOfObjects = {
inner: {string: 'abc', number: 123, boolean: true},
inner: {str: 'ab', nb: 12, bool: true, [Symbol('sb')]: 'sb'},
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For easier review you could just add the additional symbol. Changing the other keys and values can be distracting.

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Done :)

};
const typedArray = Int8Array.from([100, -100, 0]);
const arrayBuffer = typedArray.buffer;
Expand Down Expand Up @@ -723,12 +723,12 @@ describe('InspectedElementContext', () => {
);
expect(map_of_maps[meta.preview_short]).toBe('Map(2)');

expect(object_of_objects.inner[meta.size]).toBe(3);
expect(object_of_objects.inner[meta.size]).toBe(4);
expect(object_of_objects.inner[meta.inspectable]).toBe(true);
expect(object_of_objects.inner[meta.name]).toBe('');
expect(object_of_objects.inner[meta.type]).toBe('object');
expect(object_of_objects.inner[meta.preview_long]).toBe(
'{boolean: true, number: 123, string: "abc"}',
'{Symbol(sb): "sb", bool: true, nb: 12, str: "ab"}',
);
expect(object_of_objects.inner[meta.preview_short]).toBe('{…}');

Expand Down
9 changes: 5 additions & 4 deletions packages/react-devtools-shared/src/hydration.js
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Original file line number Diff line number Diff line change
Expand Up @@ -88,7 +88,7 @@ function createDehydrated(
if (type === 'array' || type === 'typed_array') {
dehydrated.size = data.length;
} else if (type === 'object') {
dehydrated.size = Object.keys(data).length;
dehydrated.size = Reflect.ownKeys(data).length;
}

if (type === 'iterator' || type === 'typed_array') {
Expand Down Expand Up @@ -291,16 +291,17 @@ export function dehydrate(
return createDehydrated(type, true, data, cleaned, path);
} else {
const object = {};
for (const name in data) {
Reflect.ownKeys(data).forEach(key => {
const name = key.toString();
object[name] = dehydrate(
data[name],
data[key],
cleaned,
unserializable,
path.concat([name]),
isPathAllowed,
isPathAllowedCheck ? 1 : level + 1,
);
}
});
return object;
}

Expand Down
16 changes: 11 additions & 5 deletions packages/react-devtools-shared/src/utils.js
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Original file line number Diff line number Diff line change
Expand Up @@ -52,10 +52,13 @@ const cachedDisplayNames: WeakMap<Function, string> = new WeakMap();
// Try to reuse the already encoded strings.
const encodedStringCache = new LRU({max: 1000});

export function alphaSortKeys(a: string, b: string): number {
if (a > b) {
export function alphaSortKeys(
a: string | number | Symbol,
b: string | number | Symbol,
): number {
if (a.toString() > b.toString()) {
return 1;
} else if (b > a) {
} else if (b.toString() > a.toString()) {
return -1;
} else {
return 0;
Expand Down Expand Up @@ -657,15 +660,18 @@ export function formatDataForPreview(
return data.toString();
case 'object':
if (showFormattedValue) {
const keys = Object.keys(data).sort(alphaSortKeys);
const keys = Reflect.ownKeys(data).sort(alphaSortKeys);

let formatted = '';
for (let i = 0; i < keys.length; i++) {
const key = keys[i];
if (i > 0) {
formatted += ', ';
}
formatted += `${key}: ${formatDataForPreview(data[key], false)}`;
formatted += `${key.toString()}: ${formatDataForPreview(
data[key],
false,
)}`;
if (formatted.length > MAX_PREVIEW_STRING_LENGTH) {
// Prevent doing a lot of unnecessary iteration...
break;
Expand Down