mirror of
https://github.com/vercel-labs/scriptc.git
synced 2026-10-02 08:35:07 +08:00
Chris Tate
cbb8fc380a
- Add exact 64-bit and pointer ABIs, static node:ffi bindings, and Darwin framework linking. - Support native memory views and reusable callback pools with checked conversions and lifetime handling. - Preserve the JavaScript values, accessors, and module bindings used during renderer initialization.
30 lines
1.3 KiB
JavaScript
30 lines
1.3 KiB
JavaScript
import {createRequire} from 'node:module';
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const require = createRequire(import.meta.url);
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const ffi = require('node:ffi');
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const bytes = new Uint8Array([10,20,30,40]);
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const pointer = ffi.getRawPointer(bytes.buffer);
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console.log(typeof pointer, pointer !== 0n);
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const alias = new Uint8Array(ffi.toArrayBuffer(pointer + 1n, 2, false));
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alias[0] = 99;
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console.log(bytes.join(','), alias.join(','));
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const copied = new Uint8Array(ffi.toArrayBuffer(pointer, 4));
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bytes[0] = 55;
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console.log(copied.join(','), bytes.join(','));
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const offset = bytes.subarray(2);
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console.log(ffi.getRawPointer(offset) === pointer + 2n);
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for (let i=0;i<1000;i++) {
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const view = new Uint8Array(ffi.toArrayBuffer(pointer, 4, false));
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view[3] = i % 256;
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}
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console.log(bytes[3]);
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console.log(new Uint8Array(ffi.toArrayBuffer(0n,0,false)).length);
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for (const [address, length] of [[-1n,0],[1n<<65n,0],[0n,1],[0n,-1],[0n,0.5],[(1n<<64n)-1n,2],[0n,Number.MAX_VALUE],[1n,2**54]]) {
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try { ffi.toArrayBuffer(address,length,false); } catch(error) { console.log(error.name,error.code,error.message); }
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}
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for (const copy of [false, 0, '', null, true, 'copy']) {
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const view = new Uint8Array(ffi.toArrayBuffer(pointer,1,copy));
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const before = bytes[0];
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view[0] = before + 1;
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console.log(bytes[0] === view[0]);
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}
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