Joseph Ferano
b14793517b
sand-headless imports no raylib so that it can run here, and the point of the case is not that a module exists — it is that the number matches native byte for byte, which is only possible because rand-f32 is Flan's rather than libc's. It does, at -O2 and at -O0; -O0 is the cheap way to say the agreement is not a coincidence of how LLVM folded the float arithmetic. values and machine run there too, which is where a 32-bit pointer would have shown. Four separate things can be missing — clang's wasm target, the sysroot, the builtins, a WASI runtime — so the skip is a probe rather than a lookup: build the smallest program and run it, and print what went wrong. A which(1) would go red on the machine where Node is too old, with a reason nobody could read. No wasmtime and no wasmer here, so the runner is node:wasi, with wasmtime and wasmer preferred if either appears. --no-warnings because node:wasi writes to stderr on every run and this harness compares combined output.
24 lines
1011 B
JavaScript
24 lines
1011 B
JavaScript
// A WASI host, so the acceptance table can run a wasm32 build without a
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// wasmtime or wasmer being installed. Node has had node:wasi since 16; it is
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// still flagged experimental, hence --no-warnings at the call site, and before
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// Node 20 it needs --experimental-wasi-unstable-preview1 as well. The
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// acceptance test probes rather than assumes: if this file cannot run the
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// module, the wasm case is skipped with what went wrong.
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//
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// preopens is empty on purpose. sand-headless reads nothing and writes one
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// line to stdout, which is the whole point of it being the cross-target case.
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import { WASI } from 'node:wasi';
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import { readFile } from 'node:fs/promises';
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const [, , file, ...rest] = process.argv;
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const wasi = new WASI({
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version: 'preview1',
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args: [file, ...rest],
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env: {},
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preopens: {},
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returnOnExit: true,
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});
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const mod = await WebAssembly.compile(await readFile(file));
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const inst = await WebAssembly.instantiate(mod, wasi.getImportObject());
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process.exitCode = wasi.start(inst);
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