blob: baedc5636879838a5466c959c7f63e450a9f63aa (
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
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
/*
* Copyright (c) 2020-2021, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2020-2021, Linus Groh <linusg@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, WeakPtr<Script>, WeakPtr<Module>>;
// 9.4 Execution Contexts, https://tc39.es/ecma262/#sec-execution-contexts
struct ExecutionContext {
explicit ExecutionContext(Heap& heap)
: arguments(heap)
{
}
[[nodiscard]] ExecutionContext copy() const
{
ExecutionContext copy { arguments };
copy.function = function;
copy.realm = realm;
copy.script_or_module = script_or_module;
copy.lexical_environment = lexical_environment;
copy.variable_environment = variable_environment;
copy.private_environment = private_environment;
copy.current_node = current_node;
copy.function_name = function_name;
copy.this_value = this_value;
copy.is_strict_mode = is_strict_mode;
return copy;
}
private:
explicit ExecutionContext(MarkedVector<Value> existing_arguments)
: arguments(move(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]]
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 };
};
}
|
