I have embedded V8 (7.8.279.19) inside my Android application and tried
executing a script that compiles a WebAssembly module.
Unfortunately the promise returned by the "WebAssembly.compile" method is
never completed (neither the "then" or the "catch" methods are invoked).
The same happens with the "WebAssembly.instantiate" method:
std::unique_ptr<v8::Platform> platform = v8::platform::NewDefaultPlatform();
v8::V8::InitializePlatform(platform.get());
v8::V8::Initialize();
v8::Isolate::CreateParams create_params;
create_params.array_buffer_allocator = v8::ArrayBuffer::Allocator::
NewDefaultAllocator();
v8::Isolate* isolate = v8::Isolate::New(create_params);
v8::Isolate::Scope isolate_scope(isolate);
v8::HandleScope scope(isolate);
auto global_template = v8::ObjectTemplate::New(isolate);
global_template->Set(v8::String::NewFromUtf8(isolate, "log", v8::
NewStringType::kNormal).ToLocalChecked(), v8::FunctionTemplate::New(isolate,
[](const v8::FunctionCallbackInfo<v8::Value>& info) {
v8::Isolate* isolate = info.GetIsolate();
v8::String::Utf8Value utf(isolate, info[0].As<v8::String>());
__android_log_print(ANDROID_LOG_DEBUG, "V8Native", "%s",*utf);
}));
v8::Local<v8::Context> context = v8::Context::New(isolate, nullptr,
global_template);
v8::Context::Scope context_scope(context);
const char* csource = R"(
let bytes = new Uint8Array([
0,97,115,109,1,0,0,0,1,8,2,96,1,127,0,96,0,0,2,8,1,2,106,
115,1,95,0,0,3,2,1,1,8,1,1,10,9,1,7,0,65,185,10,16,0,11
]);
log('before the call');
WebAssembly
.instantiate(bytes)
.then(obj => log('success'))
.catch(err => log('log'));
)";
v8::Local<v8::String> source = v8::String::NewFromUtf8(isolate, csource, v8
::NewStringType::kNormal).ToLocalChecked();
v8::Local<v8::Script> script = v8::Script::Compile(context, source).
ToLocalChecked();
v8::Local<v8::Value> result;
script->Run(context).ToLocal(&result);
Do you have any idea what I might be missing here? The same javascript code
works fine in the desktop browser.
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