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Make the right function a real function, then the 'this' param works

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This commit is contained in:
David Baker 2023-09-26 18:30:39 +01:00
parent 2cfa007d4c
commit 3016866a4b
1 changed files with 5 additions and 12 deletions
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17
src/settings/rageshake.ts
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@ -551,10 +551,10 @@ type StringifyReplacer = (
// From https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors/Cyclic_object_value#circular_references
// Injects `<$ cycle-trimmed $>` wherever it cuts a cyclical object relationship
const getCircularReplacer = function (): StringifyReplacer {
const getCircularReplacer = (): StringifyReplacer => {
const seen = new WeakSet();
const depthMap = new WeakMap<object, number>();
return (key: string, value: unknown): unknown => {
return function (this: unknown, key: string, value: unknown): unknown {
if (typeof value === "object" && value !== null) {
if (seen.has(value)) {
return "<$ cycle-trimmed $>";
@ -562,17 +562,10 @@ const getCircularReplacer = function (): StringifyReplacer {
seen.add(value);
let depth = 0;
if (key) {
depth = depthMap.get(value) ?? 0;
}
// 'this' is supposed to be the object the value was found in, according to
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify
// but that doesn't seem to be the case. Instead, we do a pre-pass on the children here to
// remember what depth we saw them at.
for (const v of Object.values(value)) {
if (typeof v === "object") depthMap.set(v, depth + 1);
if (this) {
depth = depthMap.get(this) ?? 0;
}
depthMap.set(value, depth + 1);
if (depth > DEPTH_LIMIT) return "<$ object-pruned $>";
}