mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2026-04-19 02:10:26 +00:00
7281091fdb
Remove CodeGenerationError and make all bytecode generation functions return their results directly instead of wrapping them in CodeGenerationErrorOr. For the few remaining sites where codegen encounters an unimplemented or unexpected AST node, we now use a new emit_todo() helper that emits a NewTypeError + Throw sequence at compile time (preserving the runtime behavior) and then switches to a dead basic block so subsequent codegen for the same function can continue without issue. This allows us to remove error handling from all callers of the bytecode compiler, simplifying the code significantly.
70 lines
3.2 KiB
C++
70 lines
3.2 KiB
C++
/*
|
|
* Copyright (c) 2020, Matthew Olsson <mattco@serenityos.org>
|
|
* Copyright (c) 2021, Linus Groh <linusg@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <LibJS/Runtime/Completion.h>
|
|
#include <LibJS/Runtime/FunctionObject.h>
|
|
|
|
namespace JS {
|
|
|
|
class ProxyObject final : public FunctionObject {
|
|
JS_OBJECT(ProxyObject, FunctionObject);
|
|
GC_DECLARE_ALLOCATOR(ProxyObject);
|
|
|
|
public:
|
|
static GC::Ref<ProxyObject> create(Realm&, Object& target, Object& handler);
|
|
|
|
virtual ~ProxyObject() override = default;
|
|
|
|
virtual bool has_constructor() const override;
|
|
|
|
Object const& target() const { return m_target; }
|
|
Object const& handler() const { return m_handler; }
|
|
|
|
bool is_revoked() const { return m_is_revoked; }
|
|
void revoke() { m_is_revoked = true; }
|
|
|
|
// 10.5 Proxy Object Internal Methods and Internal Slots, https://tc39.es/ecma262/#sec-proxy-object-internal-methods-and-internal-slots
|
|
|
|
virtual ThrowCompletionOr<Object*> internal_get_prototype_of() const override;
|
|
virtual ThrowCompletionOr<bool> internal_set_prototype_of(Object* prototype) override;
|
|
virtual ThrowCompletionOr<bool> internal_is_extensible() const override;
|
|
virtual ThrowCompletionOr<bool> internal_prevent_extensions() override;
|
|
virtual ThrowCompletionOr<Optional<PropertyDescriptor>> internal_get_own_property(PropertyKey const&) const override;
|
|
virtual ThrowCompletionOr<bool> internal_define_own_property(PropertyKey const&, PropertyDescriptor&, Optional<PropertyDescriptor>* precomputed_get_own_property = nullptr) override;
|
|
virtual ThrowCompletionOr<bool> internal_has_property(PropertyKey const&) const override;
|
|
virtual ThrowCompletionOr<Value> internal_get(PropertyKey const&, Value receiver, CacheableGetPropertyMetadata*, PropertyLookupPhase) const override;
|
|
virtual ThrowCompletionOr<bool> internal_set(PropertyKey const&, Value value, Value receiver, CacheableSetPropertyMetadata*, PropertyLookupPhase) override;
|
|
virtual ThrowCompletionOr<bool> internal_delete(PropertyKey const&) override;
|
|
virtual ThrowCompletionOr<GC::RootVector<Value>> internal_own_property_keys() const override;
|
|
virtual ThrowCompletionOr<Value> internal_call(ExecutionContext&, Value this_argument) override;
|
|
virtual ThrowCompletionOr<GC::Ref<Object>> internal_construct(ExecutionContext&, FunctionObject& new_target) override;
|
|
ThrowCompletionOr<void> validate_non_revoked_proxy() const;
|
|
|
|
virtual Utf16String name_for_call_stack() const override;
|
|
|
|
private:
|
|
ProxyObject(Object& target, Object& handler, Object& prototype);
|
|
|
|
virtual void visit_edges(Visitor&) override;
|
|
|
|
virtual bool is_function() const override { return m_target->is_function(); }
|
|
virtual bool is_proxy_object() const final { return true; }
|
|
virtual bool eligible_for_own_property_enumeration_fast_path() const override final { return false; }
|
|
|
|
virtual void get_stack_frame_size(size_t& registers_and_locals_count, size_t& constants_count, size_t& argument_count) override;
|
|
|
|
GC::Ref<Object> m_target;
|
|
GC::Ref<Object> m_handler;
|
|
bool m_is_revoked { false };
|
|
};
|
|
|
|
template<>
|
|
inline bool Object::fast_is<ProxyObject>() const { return is_proxy_object(); }
|
|
|
|
}
|