blob: 4397604b0bce625cac2e52cc82b6e3672322ebd0 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
/*
* Copyright (c) 2020-2021, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2020-2021, Linus Groh <linusg@serenityos.org>
* Copyright (c) 2022, Luke Wilde <lukew@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/FlyString.h>
#include <AK/WeakPtr.h>
#include <LibJS/Forward.h>
#include <LibJS/Heap/MarkedVector.h>
#include <LibJS/Module.h>
#include <LibJS/Runtime/PrivateEnvironment.h>
#include <LibJS/Runtime/Value.h>
namespace JS {
using ScriptOrModule = Variant<Empty, NonnullGCPtr<Script>, NonnullGCPtr<Module>>;
// 9.4 Execution Contexts, https://tc39.es/ecma262/#sec-execution-contexts
struct ExecutionContext {
explicit ExecutionContext(Heap& heap);
[[nodiscard]] ExecutionContext copy() const;
void visit_edges(Cell::Visitor&);
private:
explicit ExecutionContext(MarkedVector<Value> existing_arguments);
public:
FunctionObject* function { nullptr }; // [[Function]]
Realm* realm { nullptr }; // [[Realm]]
ScriptOrModule script_or_module; // [[ScriptOrModule]]
Environment* lexical_environment { nullptr }; // [[LexicalEnvironment]]
Environment* variable_environment { nullptr }; // [[VariableEnvironment]]
PrivateEnvironment* private_environment { nullptr }; // [[PrivateEnvironment]]
// Non-standard: This points at something that owns this ExecutionContext, in case it needs to be protected from GC.
Cell* context_owner { nullptr };
ASTNode const* current_node { nullptr };
FlyString function_name;
Value this_value;
MarkedVector<Value> arguments;
bool is_strict_mode { false };
// https://html.spec.whatwg.org/multipage/webappapis.html#skip-when-determining-incumbent-counter
// FIXME: Move this out of LibJS (e.g. by using the CustomData concept), as it's used exclusively by LibWeb.
size_t skip_when_determining_incumbent_counter { 0 };
};
}
|
