mirror of
https://github.com/vercel-labs/scriptc.git
synced 2026-10-31 07:23:06 +08:00
Chris Tate
cb94453647
- Compile the production C emitter and reproduce its output across native generations. - Support the union operations, recursive spreads, and compression options needed by the emitter. - Fix temporary ownership and verify the bootstrap and shared call operands with both backends and sanitizers.
34 lines
1.5 KiB
TypeScript
34 lines
1.5 KiB
TypeScript
import { deflateSync, deflateRawSync, gzipSync, inflateSync, inflateRawSync, gunzipSync } from "node:zlib";
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const text = "native emitter π\u0000".repeat(400);
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const data = Buffer.from(text, "utf8");
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const raw = [
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deflateRawSync(data, { level: -1 }),
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deflateRawSync(data, { level: 0 }),
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deflateRawSync(data, { level: 1 }),
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deflateRawSync(data, { level: 2 }),
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deflateRawSync(data, { level: 3 }),
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deflateRawSync(data, { level: 4 }),
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deflateRawSync(data, { level: 5 }),
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deflateRawSync(data, { level: 6 }),
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deflateRawSync(data, { level: 7 }),
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deflateRawSync(data, { level: 8 }),
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deflateRawSync(data, { level: 9 }),
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];
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for (let i = 0; i < raw.length; i++) {
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const bytes = raw[i]!;
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console.log(inflateRawSync(bytes).equals(data));
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}
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// Encoded bytes vary by zlib version. Pin level zero's uncompressed size
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// and level nine's compression without requiring a particular bitstream.
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console.log(raw[1]!.length > data.length, raw[10]!.length < data.length / 10);
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const zlib = deflateSync(data, { level: 9 });
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console.log(inflateSync(zlib).equals(data));
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const gzip = gzipSync(data, { level: 9 });
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console.log(gunzipSync(gzip).equals(data));
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console.log(inflateRawSync(deflateRawSync("", { level: 9 })).length);
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console.log(inflateSync(deflateSync("hello", { level: 0 })).toString());
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console.log(gunzipSync(gzipSync("hello", { level: 1 })).toString());
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let calls = 0;
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function input(): Buffer { calls++; return data; }
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console.log(inflateRawSync(deflateRawSync(input(), { level: 9 })).equals(data), calls);
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