1// Copyright (C) 2016 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
3
4#include "qv4booleanobject_p.h"
5
6using namespace QV4;
7
8DEFINE_OBJECT_VTABLE(BooleanCtor);
9DEFINE_OBJECT_VTABLE(BooleanObject);
10
11void Heap::BooleanCtor::init(QV4::ExecutionEngine *engine)
12{
13 Heap::FunctionObject::init(engine, QStringLiteral("Boolean"));
14}
15
16ReturnedValue BooleanCtor::virtualCallAsConstructor(const FunctionObject *that, const Value *argv, int argc, const Value *newTarget)
17{
18 auto v4 = that->engine();
19 bool n = argc ? argv[0].toBoolean() : false;
20
21 ReturnedValue o = Encode(v4->newBooleanObject(b: n));
22 if (!newTarget)
23 return o;
24 Scope scope(v4);
25 ScopedObject obj(scope, o);
26 obj->setProtoFromNewTarget(newTarget);
27 return obj->asReturnedValue();
28}
29
30ReturnedValue BooleanCtor::virtualCall(const FunctionObject *, const Value *, const Value *argv, int argc)
31{
32 bool value = argc ? argv[0].toBoolean() : 0;
33 return Encode(value);
34}
35
36void BooleanPrototype::init(ExecutionEngine *engine, Object *ctor)
37{
38 Scope scope(engine);
39 ScopedObject o(scope);
40 ctor->defineReadonlyConfigurableProperty(name: engine->id_length(), value: Value::fromInt32(i: 1));
41 ctor->defineReadonlyProperty(name: engine->id_prototype(), value: (o = this));
42 defineDefaultProperty(QStringLiteral("constructor"), value: (o = ctor));
43 defineDefaultProperty(name: engine->id_toString(), code: method_toString);
44 defineDefaultProperty(name: engine->id_valueOf(), code: method_valueOf);
45}
46
47static bool value(const Value *thisObject, bool *exception)
48{
49 *exception = false;
50 if (thisObject->isBoolean()) {
51 return thisObject->booleanValue();
52 } else {
53 const BooleanObject *that = thisObject->as<BooleanObject>();
54 if (that)
55 return that->value();
56 }
57 *exception = true;
58 return false;
59}
60
61ReturnedValue BooleanPrototype::method_toString(const FunctionObject *b, const Value *thisObject, const Value *, int)
62{
63 bool exception;
64 bool result = ::value(thisObject, exception: &exception);
65 ExecutionEngine *v4 = b->engine();
66 if (exception)
67 return v4->throwTypeError();
68
69 return (result ? v4->id_true() : v4->id_false())->asReturnedValue();
70}
71
72ReturnedValue BooleanPrototype::method_valueOf(const FunctionObject *b, const Value *thisObject, const Value *, int)
73{
74 bool exception;
75 bool result = ::value(thisObject, exception: &exception);
76 if (exception) {
77 ExecutionEngine *v4 = b->engine();
78 return v4->throwTypeError();
79 }
80
81 return Encode(result);
82}
83

source code of qtdeclarative/src/qml/jsruntime/qv4booleanobject.cpp