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LibWasm: Give names to functions exported to JS via ref.func

Browse Source 
https://webassembly.github.io/spec/js-api/index.html#name-of-the-webassembly-function
This commit is contained in:
Diego
2024-07-08 18:09:00 -07:00
committed by Ali Mohammad Pur
parent d890be6e0f
commit e8fd8982f8
5 changed files with 26 additions and 8 deletions
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20
Userland/Libraries/LibWeb/WebAssembly/WebAssembly.cpp
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@@ -219,7 +219,8 @@ JS::ThrowCompletionOr<NonnullOwnPtr<Wasm::ModuleInstance>> instantiate_module(JS
return Wasm::Result { move(wasm_values) };
},
type
type,
ByteString::formatted("func{}", resolved_imports.size()),
};
auto address = cache.abstract_machine().store().allocate(move(host_function));
dbgln("Resolved to {}", address->value());
@@ -448,9 +449,20 @@ JS::Value to_js_value(JS::VM& vm, Wasm::Value& wasm_value)
return JS::Value(wasm_value.to<double>().value());
case Wasm::ValueType::F32:
return JS::Value(static_cast<double>(wasm_value.to<float>().value()));
case Wasm::ValueType::FunctionReference:
// FIXME: What's the name of a function reference that isn't exported?
return create_native_function(vm, wasm_value.to<Wasm::Reference::Func>().value().address, "FIXME_IHaveNoIdeaWhatThisShouldBeCalled");
case Wasm::ValueType::FunctionReference: {
auto address = wasm_value.to<Wasm::Reference::Func>().value().address;
auto& cache = get_cache(realm);
auto* function = cache.abstract_machine().store().get(address);
auto name = function->visit(
[&](Wasm::WasmFunction& wasm_function) {
auto index = *wasm_function.module().functions().find_first_index(address);
return ByteString::formatted("func{}", index);
},
[](Wasm::HostFunction& host_function) {
return host_function.name();
});
return create_native_function(vm, address, name);
}
case Wasm::ValueType::V128:
case Wasm::ValueType::ExternReference:
TODO();