mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-09-20 09:49:15 +03:00
3d84fb64c3
This *not* being the same as C++ "%" in all cases is a massive footgun, and hopefully one I came across for the last time.
94 lines
4.8 KiB
C++
94 lines
4.8 KiB
C++
/*
|
||
* Copyright (c) 2020-2021, Linus Groh <linusg@serenityos.org>
|
||
*
|
||
* SPDX-License-Identifier: BSD-2-Clause
|
||
*/
|
||
|
||
#pragma once
|
||
|
||
#include <AK/Forward.h>
|
||
#include <LibJS/AST.h>
|
||
#include <LibJS/Forward.h>
|
||
#include <LibJS/Runtime/GlobalObject.h>
|
||
#include <LibJS/Runtime/PrivateEnvironment.h>
|
||
#include <LibJS/Runtime/Value.h>
|
||
|
||
namespace JS {
|
||
|
||
DeclarativeEnvironment* new_declarative_environment(Environment&);
|
||
ObjectEnvironment* new_object_environment(Object&, bool is_with_environment, Environment*);
|
||
FunctionEnvironment* new_function_environment(ECMAScriptFunctionObject&, Object* new_target);
|
||
PrivateEnvironment* new_private_environment(VM& vm, PrivateEnvironment* outer);
|
||
Environment& get_this_environment(VM&);
|
||
Object* get_super_constructor(VM&);
|
||
ThrowCompletionOr<Reference> make_super_property_reference(GlobalObject&, Value actual_this, PropertyKey const&, bool strict);
|
||
ThrowCompletionOr<Value> require_object_coercible(GlobalObject&, Value);
|
||
ThrowCompletionOr<Value> call_impl(GlobalObject&, Value function, Value this_value, Optional<MarkedValueList> = {});
|
||
ThrowCompletionOr<Object*> construct(GlobalObject&, FunctionObject&, Optional<MarkedValueList> = {}, FunctionObject* new_target = nullptr);
|
||
ThrowCompletionOr<size_t> length_of_array_like(GlobalObject&, Object const&);
|
||
ThrowCompletionOr<MarkedValueList> create_list_from_array_like(GlobalObject&, Value, Function<ThrowCompletionOr<void>(Value)> = {});
|
||
ThrowCompletionOr<FunctionObject*> species_constructor(GlobalObject&, Object const&, FunctionObject& default_constructor);
|
||
ThrowCompletionOr<Realm*> get_function_realm(GlobalObject&, FunctionObject const&);
|
||
bool is_compatible_property_descriptor(bool extensible, PropertyDescriptor const&, Optional<PropertyDescriptor> const& current);
|
||
bool validate_and_apply_property_descriptor(Object*, PropertyKey const&, bool extensible, PropertyDescriptor const&, Optional<PropertyDescriptor> const& current);
|
||
ThrowCompletionOr<Object*> get_prototype_from_constructor(GlobalObject&, FunctionObject const& constructor, Object* (GlobalObject::*intrinsic_default_prototype)());
|
||
Object* create_unmapped_arguments_object(GlobalObject&, Span<Value> arguments);
|
||
Object* create_mapped_arguments_object(GlobalObject&, FunctionObject&, Vector<FunctionNode::Parameter> const&, Span<Value> arguments, Environment&);
|
||
Value canonical_numeric_index_string(GlobalObject&, PropertyKey const&);
|
||
ThrowCompletionOr<String> get_substitution(GlobalObject&, Utf16View const& matched, Utf16View const& str, size_t position, Span<Value> captures, Value named_captures, Value replacement);
|
||
|
||
enum class CallerMode {
|
||
Strict,
|
||
NonStrict
|
||
};
|
||
enum class EvalMode {
|
||
Direct,
|
||
Indirect
|
||
};
|
||
ThrowCompletionOr<Value> perform_eval(Value, GlobalObject&, CallerMode, EvalMode);
|
||
|
||
ThrowCompletionOr<void> eval_declaration_instantiation(VM& vm, GlobalObject& global_object, Program const& program, Environment* variable_environment, Environment* lexical_environment, PrivateEnvironment* private_environment, bool strict);
|
||
|
||
// 7.3.13 Call ( F, V [ , argumentsList ] ), https://tc39.es/ecma262/#sec-call
|
||
template<typename... Args>
|
||
ALWAYS_INLINE ThrowCompletionOr<Value> call(GlobalObject& global_object, Value function, Value this_value, MarkedValueList arguments_list)
|
||
{
|
||
return call_impl(global_object, function, this_value, move(arguments_list));
|
||
}
|
||
|
||
template<typename... Args>
|
||
ALWAYS_INLINE ThrowCompletionOr<Value> call(GlobalObject& global_object, Value function, Value this_value, Args... args)
|
||
{
|
||
if constexpr (sizeof...(Args) > 0) {
|
||
MarkedValueList arguments_list { global_object.heap() };
|
||
(..., arguments_list.append(move(args)));
|
||
return call_impl(global_object, function, this_value, move(arguments_list));
|
||
}
|
||
|
||
return call_impl(global_object, function, this_value);
|
||
}
|
||
|
||
// 10.1.13 OrdinaryCreateFromConstructor ( constructor, intrinsicDefaultProto [ , internalSlotsList ] ), https://tc39.es/ecma262/#sec-ordinarycreatefromconstructor
|
||
template<typename T, typename... Args>
|
||
ThrowCompletionOr<T*> ordinary_create_from_constructor(GlobalObject& global_object, FunctionObject const& constructor, Object* (GlobalObject::*intrinsic_default_prototype)(), Args&&... args)
|
||
{
|
||
auto* prototype = TRY(get_prototype_from_constructor(global_object, constructor, intrinsic_default_prototype));
|
||
return global_object.heap().allocate<T>(global_object, forward<Args>(args)..., *prototype);
|
||
}
|
||
|
||
// x modulo y, https://tc39.es/ecma262/#eqn-modulo
|
||
template<typename T>
|
||
T modulo(T x, T y)
|
||
{
|
||
// The notation “x modulo y” (y must be finite and non-zero) computes a value k of the same sign as y (or zero) such that abs(k) < abs(y) and x - k = q × y for some integer q.
|
||
VERIFY(y != 0);
|
||
if constexpr (IsFloatingPoint<T>) {
|
||
VERIFY(isfinite(y));
|
||
return fmod(fmod(x, y) + y, y);
|
||
} else {
|
||
return ((x % y) + y) % y;
|
||
}
|
||
}
|
||
|
||
}
|