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gh-121698 Emscripten: Use updated WebAssembly type reflection proposal (GH-121699)

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Hood Chatham 2024-07-14 11:25:09 +02:00 committed by GitHub
parent 3086b86cfd
commit cae1526716
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1 changed files with 12 additions and 2 deletions
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14
Python/emscripten_trampoline.c
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@ -10,7 +10,17 @@
* https://github.com/GoogleChromeLabs/wasm-feature-detect/blob/main/src/detectors/type-reflection/index.js
*/
EM_JS(int, _PyEM_detect_type_reflection, (), {
return "Function" in WebAssembly;
if (!("Function" in WebAssembly)) {
return false;
}
if (WebAssembly.Function.type) {
// Node v20
Module.PyEM_CountArgs = (func) => WebAssembly.Function.type(wasmTable.get(func)).parameters.length;
} else {
// Node >= 22, v8-based browsers
Module.PyEM_CountArgs = (func) => wasmTable.get(func).type().parameters.length;
}
return true;
});
void
@ -43,7 +53,7 @@ EM_JS(int, _PyEM_CountFuncParams, (PyCFunctionWithKeywords func),
if (n !== undefined) {
return n;
}
n = WebAssembly.Function.type(wasmTable.get(func)).parameters.length;
n = Module.PyEM_CountArgs(func);
_PyEM_CountFuncParams.cache.set(func, n);
return n;
}