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LibJS: Add and use ValidateNonRevokedProxy AO

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This refactor is from two editorial changes to the spec from a while
back.

44d1cae2b2
21ffeee869
This commit is contained in:
Andrew Kaster 2025-04-23 01:30:43 -06:00 • committed by Jelle Raaijmakers
parent e48645c83f
commit 9bae24cc4a
Notes: github-actions[bot] 2025-04-24 08:38:42 +00:00
4 changed files with 107 additions and 122 deletions
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27
Libraries/LibJS/Runtime/AbstractOperations.cpp
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@ -175,29 +175,26 @@ ThrowCompletionOr<Realm*> get_function_realm(VM& vm, FunctionObject const& funct
}
// 2. If obj is a bound function exotic object, then
if (is<BoundFunction>(function)) {
auto& bound_function = static_cast<BoundFunction const&>(function);
if (auto const* bound_function = as_if<BoundFunction>(function)) {
// a. Let boundTargetFunction be obj.[[BoundTargetFunction]].
auto& bound_target_function = bound_function->bound_target_function();
// a. Let target be obj.[[BoundTargetFunction]].
auto& target = bound_function.bound_target_function();
// b. Return ? GetFunctionRealm(target).
return get_function_realm(vm, target);
// b. Return ? GetFunctionRealm(boundTargetFunction).
return get_function_realm(vm, bound_target_function);
}
// 3. If obj is a Proxy exotic object, then
if (is<ProxyObject>(function)) {
auto& proxy = static_cast<ProxyObject const&>(function);
// a. If obj.[[ProxyHandler]] is null, throw a TypeError exception.
if (proxy.is_revoked())
return vm.throw_completion<TypeError>(ErrorType::ProxyRevoked);
if (auto const* proxy = as_if<ProxyObject>(function)) {
// a. a. Perform ? ValidateNonRevokedProxy(obj).
TRY(proxy->validate_non_revoked_proxy());
// b. Let proxyTarget be obj.[[ProxyTarget]].
auto& proxy_target = proxy.target();
auto& proxy_target = proxy->target();
// c. Return ? GetFunctionRealm(proxyTarget).
// c. Assert: proxyTarget is a function object.
VERIFY(proxy_target.is_function());
// d. Return ? GetFunctionRealm(proxyTarget).
return get_function_realm(vm, static_cast<FunctionObject const&>(proxy_target));
}