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Chris Tate
b8344a6cb5
* Support Node 24 system error utilities * Wait for writable drain in the stream fixture
28 lines
1.2 KiB
TypeScript
28 lines
1.2 KiB
TypeScript
import { getSystemErrorMap, getSystemErrorMessage, getSystemErrorName } from "node:util";
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import * as util from "util";
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const errors = getSystemErrorMap();
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console.log("map", errors instanceof Map, errors.size);
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for (const [code, pair] of errors) {
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console.log(code, pair[0], pair[1], getSystemErrorName(code), getSystemErrorMessage(code));
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}
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const fresh = getSystemErrorMap();
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const first = errors.get(-3001)!;
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console.log("identity", first === errors.get(-3001), first === fresh.get(-3001));
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first[0] = "changed";
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console.log("mutation", errors.get(-3001)![0], fresh.get(-3001)![0], getSystemErrorName(-3001));
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errors.set(-123456, ["CUSTOM", "custom message"]);
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errors.delete(-3001);
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console.log("independent", errors.has(-123456), fresh.has(-123456), errors.has(-3001), fresh.has(-3001));
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errors.clear();
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console.log("clear", errors.size, fresh.size);
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const name = getSystemErrorName;
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const message = util.getSystemErrorMessage;
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const all = util.getSystemErrorMap;
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console.log("stored", name(-3001), message(-3001), all().get(-3001)![0]);
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for (const code of [-123456, -2147483648, -2147483649, -4294967298, -9007199254740991]) {
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console.log("unknown", code, name(code), message(code));
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}
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