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LibJS: Remove Object(Object& prototype) footgun

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This constructor was easily confused with a copy constructor, and it was
possible to accidentally copy-construct Objects in at least one way that
we dicovered (via generic ThrowCompletionOr construction).

This patch adds a mandatory ConstructWithPrototypeTag parameter to the
constructor to disambiguate it.
This commit is contained in:
Andreas Kling 2022-12-14 12:17:58 +01:00
parent 42b5c896e8
commit 4abdb68655
90 changed files with 100 additions and 99 deletions
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8
Meta/Lagom/Tools/CodeGenerators/LibWeb/BindingsGenerator/IDLGenerators.cpp
View file

@ -2436,15 +2436,15 @@ namespace Web::Bindings {
// https://webidl.spec.whatwg.org/#es-DOMException-specialness
// Object.getPrototypeOf(DOMException.prototype) === Error.prototype
generator.append(R"~~~(
: Object(*realm.intrinsics().error_prototype())
: Object(ConstructWithPrototypeTag::Tag, *realm.intrinsics().error_prototype())
)~~~");
} else if (!interface.parent_name.is_empty()) {
generator.append(R"~~~(
: Object(ensure_web_prototype<@prototype_base_class@>(realm, "@parent_name@"))
: Object(ConstructWithPrototypeTag::Tag, ensure_web_prototype<@prototype_base_class@>(realm, "@parent_name@"))
)~~~");
} else {
generator.append(R"~~~(
: Object(*realm.intrinsics().object_prototype())
: Object(ConstructWithPrototypeTag::Tag, *realm.intrinsics().object_prototype())
)~~~");
}
@ -2873,7 +2873,7 @@ using namespace Web::WebIDL;
namespace Web::Bindings {
@prototype_class@::@prototype_class@(JS::Realm& realm)
: Object(*realm.intrinsics().iterator_prototype())
: Object(ConstructWithPrototypeTag::Tag, *realm.intrinsics().iterator_prototype())
{
}