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i have the demand to use JSContext run the JavaScript with WebAssembly, but JSContext not support.i test this on the iOS12.4, iPhone6slet script =
"""
(()=>{
function testSafariWebAssemblyBug() {
var bin = new Uint8Array([0,97,115,109,1,0,0,0,1,6,1,96,1,127,1,127,3,2,1,0,5,3,1,0,1,7,8,1,4,116,101,115,116,0,0,10,16,1,14,0,32,0,65,1,54,2,0,32,0,40,2,0,11]);
var mod = new WebAssembly.Module(bin);
var inst = new WebAssembly.Instance(mod, {});
// test storing to and loading from a non-zero location via a parameter.
// Safari on iOS 11.2.5 returns 0 unexpectedly at non-zero locations
// console.log(inst.exports.test(4));
return (inst.exports.test(4) !== 0);
}
if (testSafariWebAssemblyBug()) {
// ok, we stored a value.
return 'ok';
} else {
return 'fail';
}
})();
"""
var context = JSContext(
context?.exceptionHandler = { [weak self] _, error in
if let error = error {
let message = String(describing: error)
print(message)
}
}
let value = context?.evaluateScript(script)
if let value = value {
let message = String(describing: value)
print(message)
}the console printOut of executable memory in function at index 0 (evaluating 'new WebAssembly.Instance(mod, {})')
Posted
by
doom_sil.
Last updated
doom_sil.
.