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39
40#include "qv4booleanobject_p.h"
41#include "qv4string_p.h"
42
43using namespace QV4;
44
45DEFINE_OBJECT_VTABLE(BooleanCtor);
46DEFINE_OBJECT_VTABLE(BooleanObject);
47
48void Heap::BooleanCtor::init(QV4::ExecutionContext *scope)
49{
50 Heap::FunctionObject::init(scope, QStringLiteral("Boolean"));
51}
52
53ReturnedValue BooleanCtor::virtualCallAsConstructor(const FunctionObject *that, const Value *argv, int argc, const Value *newTarget)
54{
55 auto v4 = that->engine();
56 bool n = argc ? argv[0].toBoolean() : false;
57
58 ReturnedValue o = Encode(v4->newBooleanObject(b: n));
59 if (!newTarget)
60 return o;
61 Scope scope(v4);
62 ScopedObject obj(scope, o);
63 obj->setProtoFromNewTarget(newTarget);
64 return obj->asReturnedValue();
65}
66
67ReturnedValue BooleanCtor::virtualCall(const FunctionObject *, const Value *, const Value *argv, int argc)
68{
69 bool value = argc ? argv[0].toBoolean() : 0;
70 return Encode(value);
71}
72
73void BooleanPrototype::init(ExecutionEngine *engine, Object *ctor)
74{
75 Scope scope(engine);
76 ScopedObject o(scope);
77 ctor->defineReadonlyConfigurableProperty(name: engine->id_length(), value: Value::fromInt32(i: 1));
78 ctor->defineReadonlyProperty(name: engine->id_prototype(), value: (o = this));
79 defineDefaultProperty(QStringLiteral("constructor"), value: (o = ctor));
80 defineDefaultProperty(name: engine->id_toString(), code: method_toString);
81 defineDefaultProperty(name: engine->id_valueOf(), code: method_valueOf);
82}
83
84static bool value(const Value *thisObject, bool *exception)
85{
86 *exception = false;
87 if (thisObject->isBoolean()) {
88 return thisObject->booleanValue();
89 } else {
90 const BooleanObject *that = thisObject->as<BooleanObject>();
91 if (that)
92 return that->value();
93 }
94 *exception = true;
95 return false;
96}
97
98ReturnedValue BooleanPrototype::method_toString(const FunctionObject *b, const Value *thisObject, const Value *, int)
99{
100 bool exception;
101 bool result = ::value(thisObject, exception: &exception);
102 ExecutionEngine *v4 = b->engine();
103 if (exception)
104 return v4->throwTypeError();
105
106 return (result ? v4->id_true() : v4->id_false())->asReturnedValue();
107}
108
109ReturnedValue BooleanPrototype::method_valueOf(const FunctionObject *b, const Value *thisObject, const Value *, int)
110{
111 bool exception;
112 bool result = ::value(thisObject, exception: &exception);
113 if (exception) {
114 ExecutionEngine *v4 = b->engine();
115 return v4->throwTypeError();
116 }
117
118 return Encode(result);
119}
120

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