mirror of
https://github.com/swc-project/swc.git
synced 2024-11-28 11:13:43 +03:00
38 lines
1.0 KiB
TypeScript
38 lines
1.0 KiB
TypeScript
// Loaded from https://raw.githubusercontent.com/czabaj/stringify-replacers/main/replacers.ts
|
|
|
|
|
|
import { Replacer } from "./types.d.ts";
|
|
import { printType } from "./utils.ts";
|
|
|
|
export const identityReplacer: Replacer = (k, v) => v;
|
|
|
|
/**
|
|
* Prints deep objects only to certain depth
|
|
*/
|
|
export const maxDepthReplacer = (maxDepth: number): Replacer => {
|
|
if (maxDepth === 0) {
|
|
return identityReplacer;
|
|
}
|
|
if (maxDepth === 1) {
|
|
return (k, v) =>
|
|
k !== `` && v && typeof v === `object` ? printType.call(v) : v;
|
|
}
|
|
const depthTrack = new Map<Record<string, unknown>, number>();
|
|
return function (k, v) {
|
|
const currentDepth = depthTrack.get(this) || 0;
|
|
if (v && typeof v === `object`) {
|
|
if (currentDepth >= maxDepth) {
|
|
return printType.call(v);
|
|
}
|
|
depthTrack.set(v, currentDepth + 1);
|
|
}
|
|
return v;
|
|
};
|
|
};
|
|
|
|
/**
|
|
* Add support to serialize ES6 Map
|
|
*/
|
|
export const serializeMapReplacer: Replacer = (k, v) =>
|
|
v && v instanceof Map ? Object.fromEntries(v.entries()) : v;
|