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.
37 lines
1.7 KiB
JavaScript
37 lines
1.7 KiB
JavaScript
import {createRequire} from 'node:module';
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const req=createRequire(import.meta.url);
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const ffi=req('node:ffi');
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const a=ffi.dlopen(process.env.FFI_LIBRARY,{invoke:{arguments:['pointer','u64'],return:'u64'}});
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const b=ffi.dlopen(process.env.FFI_LIBRARY,{});
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const signature={arguments:['u64'],return:'u64'};
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const x=a.lib.registerCallback(signature,v=>v+1n);
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const y=b.lib.registerCallback(signature,v=>v+2n);
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console.log(x!==y,a.functions.invoke(x,9007199254740993n),a.functions.invoke(y,9007199254740993n));
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if (process.env.FFI_STATIC === '1') {
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try {a.lib.registerCallback(signature,v=>v);}catch {console.log('capacity');}
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}
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a.lib.unregisterCallback(x);
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const z=a.lib.registerCallback(signature,v=>v+3n);
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console.log(a.functions.invoke(z,42n));
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a.lib.close();
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b.lib.close();
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const c=ffi.dlopen(process.env.FFI_LIBRARY,{invoke:{arguments:['pointer','u64'],return:'u64'}});
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// Node aborts on a thrown native callback. scriptc defers the exception
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// to the calling script frame; exercise that contract only in its lane.
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if (process.env.FFI_STATIC === '1') {
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const error=c.lib.registerCallback(signature,()=>{throw new Error('callback failed');});
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try {c.functions.invoke(error,1n);} catch(e) {console.log(e.message);}
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c.lib.unregisterCallback(error);
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const overflow=c.lib.registerCallback(signature,()=>18446744073709551616n);
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try {c.functions.invoke(overflow,1n);} catch(e) {console.log(e.code);}
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c.lib.unregisterCallback(overflow);
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}
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const self=c.lib.registerCallback(signature,v=>{
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// Node frees executing callback code on close; scriptc pins its static
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// adapter's closure until invocation returns.
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if (process.env.FFI_STATIC === '1') c.lib.close();
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return v+4n;
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});
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console.log(c.functions.invoke(self,2n));
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if (process.env.FFI_STATIC !== '1') c.lib.close();
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