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https://github.com/RGBCube/serenity
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c793beb0cc
This holds the return value of the expression that was last entered into the browser console. If that last expression returned an error of some kind, `$_` will be `undefined`. This matches the behaviour in Firefox.
120 lines
3.9 KiB
C++
120 lines
3.9 KiB
C++
/*
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* Copyright (c) 2021-2022, Sam Atkins <atkinssj@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include "ConsoleGlobalObject.h"
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#include <LibJS/Runtime/Completion.h>
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/HTML/Window.h>
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namespace WebContent {
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ConsoleGlobalObject::ConsoleGlobalObject(JS::Realm& realm, Web::HTML::Window& parent_object)
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: GlobalObject(realm)
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, m_window_object(&parent_object)
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{
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}
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void ConsoleGlobalObject::initialize(JS::Realm& realm)
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{
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Base::initialize(realm);
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define_native_accessor(realm, "$0", $0_getter, nullptr, 0);
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define_native_accessor(realm, "$_", $__getter, nullptr, 0);
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}
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void ConsoleGlobalObject::visit_edges(Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_window_object);
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}
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JS::ThrowCompletionOr<JS::Object*> ConsoleGlobalObject::internal_get_prototype_of() const
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{
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return m_window_object->internal_get_prototype_of();
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}
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JS::ThrowCompletionOr<bool> ConsoleGlobalObject::internal_set_prototype_of(JS::Object* prototype)
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{
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return m_window_object->internal_set_prototype_of(prototype);
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}
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JS::ThrowCompletionOr<bool> ConsoleGlobalObject::internal_is_extensible() const
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{
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return m_window_object->internal_is_extensible();
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}
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JS::ThrowCompletionOr<bool> ConsoleGlobalObject::internal_prevent_extensions()
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{
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return m_window_object->internal_prevent_extensions();
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}
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JS::ThrowCompletionOr<Optional<JS::PropertyDescriptor>> ConsoleGlobalObject::internal_get_own_property(JS::PropertyKey const& property_name) const
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{
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if (auto result = TRY(m_window_object->internal_get_own_property(property_name)); result.has_value())
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return result;
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return Base::internal_get_own_property(property_name);
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}
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JS::ThrowCompletionOr<bool> ConsoleGlobalObject::internal_define_own_property(JS::PropertyKey const& property_name, JS::PropertyDescriptor const& descriptor)
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{
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return m_window_object->internal_define_own_property(property_name, descriptor);
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}
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JS::ThrowCompletionOr<bool> ConsoleGlobalObject::internal_has_property(JS::PropertyKey const& property_name) const
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{
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return TRY(Object::internal_has_property(property_name)) || TRY(m_window_object->internal_has_property(property_name));
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}
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JS::ThrowCompletionOr<JS::Value> ConsoleGlobalObject::internal_get(JS::PropertyKey const& property_name, JS::Value receiver) const
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{
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if (TRY(m_window_object->has_own_property(property_name)))
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return m_window_object->internal_get(property_name, (receiver == this) ? m_window_object : receiver);
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return Base::internal_get(property_name, receiver);
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}
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JS::ThrowCompletionOr<bool> ConsoleGlobalObject::internal_set(JS::PropertyKey const& property_name, JS::Value value, JS::Value receiver)
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{
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return m_window_object->internal_set(property_name, value, (receiver == this) ? m_window_object : receiver);
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}
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JS::ThrowCompletionOr<bool> ConsoleGlobalObject::internal_delete(JS::PropertyKey const& property_name)
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{
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return m_window_object->internal_delete(property_name);
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}
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JS::ThrowCompletionOr<JS::MarkedVector<JS::Value>> ConsoleGlobalObject::internal_own_property_keys() const
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{
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return m_window_object->internal_own_property_keys();
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}
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static JS::ThrowCompletionOr<ConsoleGlobalObject*> get_console(JS::VM& vm)
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{
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if (!is<ConsoleGlobalObject>(vm.get_global_object()))
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return vm.throw_completion<JS::TypeError>(JS::ErrorType::NotAnObjectOfType, "ConsoleGlobalObject");
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return static_cast<ConsoleGlobalObject*>(&vm.get_global_object());
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}
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JS_DEFINE_NATIVE_FUNCTION(ConsoleGlobalObject::$0_getter)
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{
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auto* console_global_object = TRY(get_console(vm));
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auto& window = *console_global_object->m_window_object;
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auto* inspected_node = window.associated_document().inspected_node();
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if (!inspected_node)
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return JS::js_undefined();
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return inspected_node;
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}
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JS_DEFINE_NATIVE_FUNCTION(ConsoleGlobalObject::$__getter)
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{
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auto* console_global_object = TRY(get_console(vm));
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return console_global_object->m_most_recent_result;
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}
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}
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