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LibWeb: Add Wasm Web-API streaming compilation and instantiation

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This requires fixing up the "parameter is a promise" handling in
the IDL generator.
This commit is contained in:
Andrew Kaster 2024-10-26 17:34:09 -06:00 • committed by Andrew Kaster
commit 36feebb1e7
Notes: github-actions[bot] 2024-11-01 17:43:14 +00:00
7 changed files with 250 additions and 9 deletions
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15
Meta/Lagom/Tools/CodeGenerators/LibWeb/BindingsGenerator/IDLGenerators.cpp
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@ -669,15 +669,12 @@ static void generate_to_cpp(SourceGenerator& generator, ParameterType& parameter
} else if (parameter.type->name() == "Promise") {
// https://webidl.spec.whatwg.org/#js-promise
scoped_generator.append(R"~~~(
if (!@js_name@@js_suffix@.is_cell() || !is<JS::PromiseCapability>(@js_name@@js_suffix@.as_cell())) {
// 1. Let promiseCapability be ? NewPromiseCapability(%Promise%).
auto promise_capability = TRY(JS::new_promise_capability(vm, realm.intrinsics().promise_constructor()));
// 2. Perform ? Call(promiseCapability.[[Resolve]], undefined, « V »).
TRY(JS::call(vm, *promise_capability->resolve(), JS::js_undefined(), @js_name@@js_suffix@));
// 3. Return promiseCapability.
@js_name@@js_suffix@ = promise_capability;
}
auto @cpp_name@ = JS::make_handle(static_cast<JS::PromiseCapability&>(@js_name@@js_suffix@.as_cell()));
// 1. Let promiseCapability be ? NewPromiseCapability(%Promise%).
auto promise_capability = TRY(JS::new_promise_capability(vm, realm.intrinsics().promise_constructor()));
// 2. Perform ? Call(promiseCapability.[[Resolve]], undefined, « V »).
TRY(JS::call(vm, *promise_capability->resolve(), JS::js_undefined(), @js_name@@js_suffix@));
// 3. Return promiseCapability.
auto @cpp_name@ = JS::make_handle(promise_capability);
)~~~");
} else if (parameter.type->name() == "object") {
if (parameter.type->is_nullable()) {