mirror of
https://github.com/vercel-labs/scriptc.git
synced 2026-10-21 05:50:55 +08:00
Chris Tate
05021faf2f
- Compile mesh construction, transforms, cloning, and material updates for native and WASI targets. - Preserve subclass dispatch, fluent returns, and shared array identity in JavaScript packages. - Support native class arrays and recursive conversions without materializing classes for type checks.
54 lines
2.6 KiB
JavaScript
54 lines
2.6 KiB
JavaScript
import { createRequire } from "node:module";
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const requireModule = createRequire(import.meta.url);
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const ffi = requireModule("node:ffi");
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console.log(ffi === requireModule("node:ffi"));
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const u64Arguments = ["u64"];
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const definitions = {
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nativeU64: { arguments: u64Arguments, return: "u64" },
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nativePointer: { arguments: ["pointer"], return: "pointer" },
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nativeI64: { arguments: ["int64"], return: "int64" },
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nativeByte: { arguments: ["bool"], return: "uint8" },
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firstByte: { arguments: ["pointer"], return: "u8" },
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};
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const first = ffi.dlopen(process.env.FFI_LIBRARY, definitions);
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const second = ffi.dlopen(process.env.FFI_LIBRARY, definitions);
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const call = first.functions.nativeU64;
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console.log(call(9007199254740993n));
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const bytes = new Uint8Array([42, 7]);
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console.log(first.functions.nativePointer(bytes.subarray(1)) === ffi.getRawPointer(bytes) + 1n);
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console.log(first.functions.nativePointer(null), first.functions.nativePointer(undefined));
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console.log(first.functions.firstByte("A"), first.functions.nativeByte(255));
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console.log(first.functions.nativeI64(-9223372036854775808n), call(18446744073709551615n));
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for (const value of [-1n, 18446744073709551616n, 42]) {
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try { call(value); } catch (error) { console.log(error.name, error.code); }
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}
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for (const value of [-1, 256, 0.5, NaN, Infinity, true]) {
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try { first.functions.nativeByte(value); } catch (error) { console.log(error.name, error.code); }
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}
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for (const value of [-9223372036854775809n, 9223372036854775808n]) {
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try { first.functions.nativeI64(value); } catch (error) { console.log(error.name, error.code); }
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}
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try { first.functions.firstByte("A\0B"); } catch (error) { console.log(error.name, error.code); }
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function nativeU64(value) { return value + 1; }
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console.log(nativeU64(4));
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for (const args of [[], [1n, 2n]]) {
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try { Reflect.apply(call, undefined, args); } catch { console.log("arity"); }
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}
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for (const defs of [{ missing: { arguments: [], return: "void" } }]) {
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try { ffi.dlopen(process.env.FFI_LIBRARY, defs); } catch { console.log("signature"); }
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}
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first.lib.close();
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first.lib.close();
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try { call(0n); } catch { console.log("closed"); }
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console.log(second.functions.nativeU64(42n));
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second.lib.close();
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if (process.env.FFI_STATIC === "1") {
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try { ffi.dlopen(process.env.FFI_LIBRARY, { nativeU64: { arguments: ["i64"], return: "u64" } }); }
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catch { console.log("signature mismatch"); }
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u64Arguments[0] = "i64";
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try { ffi.dlopen(process.env.FFI_LIBRARY, definitions); }
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catch { console.log("mutated signature"); }
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try { ffi.dlopen(process.env.FFI_LIBRARY, { nativeU64: { return: "u64" } }); }
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catch (error) { console.log("missing arguments", error.name, error.code); }
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}
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