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LibJS: Let Error prototypes inherit from PrototypeObject
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2 changed files with 16 additions and 23 deletions
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@ -1,6 +1,6 @@
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/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2021, Linus Groh <linusg@serenityos.org>
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* Copyright (c) 2021-2022, Linus Groh <linusg@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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@ -16,7 +16,7 @@
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namespace JS {
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ErrorPrototype::ErrorPrototype(GlobalObject& global_object)
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: Object(*global_object.object_prototype())
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: PrototypeObject(*global_object.object_prototype())
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{
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}
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@ -37,18 +37,15 @@ void ErrorPrototype::initialize(GlobalObject& global_object)
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// 20.5.3.4 Error.prototype.toString ( ), https://tc39.es/ecma262/#sec-error.prototype.tostring
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JS_DEFINE_NATIVE_FUNCTION(ErrorPrototype::to_string)
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{
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auto this_value = vm.this_value(global_object);
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if (!this_value.is_object())
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return vm.throw_completion<TypeError>(global_object, ErrorType::NotAnObject, this_value.to_string_without_side_effects());
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auto& this_object = this_value.as_object();
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auto* this_object = TRY(PrototypeObject::this_object(global_object));
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String name = "Error";
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auto name_property = TRY(this_object.get(vm.names.name));
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auto name_property = TRY(this_object->get(vm.names.name));
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if (!name_property.is_undefined())
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name = TRY(name_property.to_string(global_object));
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String message = "";
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auto message_property = TRY(this_object.get(vm.names.message));
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auto message_property = TRY(this_object->get(vm.names.message));
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if (!message_property.is_undefined())
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message = TRY(message_property.to_string(global_object));
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@ -61,21 +58,15 @@ JS_DEFINE_NATIVE_FUNCTION(ErrorPrototype::to_string)
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JS_DEFINE_NATIVE_FUNCTION(ErrorPrototype::stack)
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{
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auto this_value = vm.this_value(global_object);
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if (!this_value.is_object())
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return vm.throw_completion<TypeError>(global_object, ErrorType::NotAnObject, this_value.to_string_without_side_effects());
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auto& this_object = this_value.as_object();
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if (!is<Error>(this_object))
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return vm.throw_completion<TypeError>(global_object, ErrorType::NotAnObjectOfType, "Error");
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auto* error = TRY(typed_this_value(global_object));
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String name = "Error";
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auto name_property = TRY(this_object.get(vm.names.name));
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auto name_property = TRY(error->get(vm.names.name));
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if (!name_property.is_undefined())
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name = TRY(name_property.to_string(global_object));
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String message = "";
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auto message_property = TRY(this_object.get(vm.names.message));
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auto message_property = TRY(error->get(vm.names.message));
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if (!message_property.is_undefined())
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message = TRY(message_property.to_string(global_object));
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@ -84,12 +75,12 @@ JS_DEFINE_NATIVE_FUNCTION(ErrorPrototype::stack)
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header = String::formatted("{}: {}", name, message);
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return js_string(vm,
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String::formatted("{}\n{}", header, static_cast<Error&>(this_object).stack_string()));
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String::formatted("{}\n{}", header, error->stack_string()));
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}
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#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName, ArrayType) \
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PrototypeName::PrototypeName(GlobalObject& global_object) \
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: Object(*global_object.error_prototype()) \
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: PrototypeObject(*global_object.error_prototype()) \
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{ \
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} \
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\
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@ -1,5 +1,6 @@
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/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2021-2022, Linus Groh <linusg@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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@ -7,11 +8,12 @@
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#pragma once
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#include <LibJS/Runtime/Error.h>
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#include <LibJS/Runtime/PrototypeObject.h>
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namespace JS {
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class ErrorPrototype final : public Object {
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JS_OBJECT(ErrorPrototype, Object);
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class ErrorPrototype final : public PrototypeObject<ErrorPrototype, Error> {
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JS_PROTOTYPE_OBJECT(ErrorPrototype, Error, Error);
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public:
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explicit ErrorPrototype(GlobalObject&);
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@ -24,8 +26,8 @@ private:
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};
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#define DECLARE_NATIVE_ERROR_PROTOTYPE(ClassName, snake_name, PrototypeName, ConstructorName) \
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class PrototypeName final : public Object { \
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JS_OBJECT(PrototypeName, Object); \
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class PrototypeName final : public PrototypeObject<PrototypeName, ClassName> { \
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JS_PROTOTYPE_OBJECT(PrototypeName, ClassName, ClassName); \
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\
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public: \
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explicit PrototypeName(GlobalObject&); \
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