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39 | |
40 | #include <private/qv4iterator_p.h> |
41 | #include <private/qv4estable_p.h> |
42 | #include <private/qv4setiterator_p.h> |
43 | #include <private/qv4setobject_p.h> |
44 | #include <private/qv4symbol_p.h> |
45 | |
46 | using namespace QV4; |
47 | |
48 | DEFINE_OBJECT_VTABLE(SetIteratorObject); |
49 | |
50 | void SetIteratorPrototype::init(ExecutionEngine *e) |
51 | { |
52 | defineDefaultProperty(QStringLiteral("next" ), code: method_next, argumentCount: 0); |
53 | |
54 | Scope scope(e); |
55 | ScopedString val(scope, e->newString(s: QLatin1String("Set Iterator" ))); |
56 | defineReadonlyConfigurableProperty(name: e->symbol_toStringTag(), value: val); |
57 | } |
58 | |
59 | ReturnedValue SetIteratorPrototype::method_next(const FunctionObject *b, const Value *that, const Value *, int) |
60 | { |
61 | Scope scope(b); |
62 | const SetIteratorObject *thisObject = that->as<SetIteratorObject>(); |
63 | if (!thisObject) |
64 | return scope.engine->throwTypeError(message: QLatin1String("Not a Set Iterator instance" )); |
65 | |
66 | Scoped<SetObject> s(scope, thisObject->d()->iteratedSet); |
67 | uint index = thisObject->d()->setNextIndex; |
68 | IteratorKind itemKind = thisObject->d()->iterationKind; |
69 | |
70 | if (!s) { |
71 | QV4::Value undefined = Value::undefinedValue(); |
72 | return IteratorPrototype::createIterResultObject(engine: scope.engine, value: undefined, done: true); |
73 | } |
74 | |
75 | Value *arguments = scope.alloc(nValues: 2); |
76 | |
77 | while (index < s->d()->esTable->size()) { |
78 | s->d()->esTable->iterate(idx: index, k: &arguments[0], v: &arguments[1]); |
79 | thisObject->d()->setNextIndex = index + 1; |
80 | |
81 | if (itemKind == KeyValueIteratorKind) { |
82 | ScopedArrayObject resultArray(scope, scope.engine->newArrayObject()); |
83 | resultArray->arrayReserve(n: 2); |
84 | resultArray->arrayPut(index: 0, value: arguments[0]); |
85 | resultArray->arrayPut(index: 1, value: arguments[0]); // yes, the key is repeated. |
86 | resultArray->setArrayLengthUnchecked(2); |
87 | |
88 | return IteratorPrototype::createIterResultObject(engine: scope.engine, value: resultArray, done: false); |
89 | } |
90 | |
91 | return IteratorPrototype::createIterResultObject(engine: scope.engine, value: arguments[0], done: false); |
92 | } |
93 | |
94 | thisObject->d()->iteratedSet.set(e: scope.engine, newVal: nullptr); |
95 | QV4::Value undefined = Value::undefinedValue(); |
96 | return IteratorPrototype::createIterResultObject(engine: scope.engine, value: undefined, done: true); |
97 | } |
98 | |
99 | |