| 1 | // Copyright (C) 2018 Crimson AS <info@crimson.no> |
|---|---|
| 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 <private/qv4iterator_p.h> |
| 5 | #include <private/qv4estable_p.h> |
| 6 | #include <private/qv4setiterator_p.h> |
| 7 | #include <private/qv4setobject_p.h> |
| 8 | #include <private/qv4symbol_p.h> |
| 9 | |
| 10 | using namespace QV4; |
| 11 | |
| 12 | DEFINE_OBJECT_VTABLE(SetIteratorObject); |
| 13 | |
| 14 | void SetIteratorPrototype::init(ExecutionEngine *e) |
| 15 | { |
| 16 | defineDefaultProperty(QStringLiteral("next"), code: method_next, argumentCount: 0); |
| 17 | |
| 18 | Scope scope(e); |
| 19 | ScopedString val(scope, e->newString(s: QLatin1String("Set Iterator"))); |
| 20 | defineReadonlyConfigurableProperty(name: e->symbol_toStringTag(), value: val); |
| 21 | } |
| 22 | |
| 23 | ReturnedValue SetIteratorPrototype::method_next(const FunctionObject *b, const Value *that, const Value *, int) |
| 24 | { |
| 25 | Scope scope(b); |
| 26 | const SetIteratorObject *thisObject = that->as<SetIteratorObject>(); |
| 27 | if (!thisObject) |
| 28 | return scope.engine->throwTypeError(message: QLatin1String("Not a Set Iterator instance")); |
| 29 | |
| 30 | Scoped<SetObject> s(scope, thisObject->d()->iteratedSet); |
| 31 | uint index = thisObject->d()->setNextIndex; |
| 32 | IteratorKind itemKind = thisObject->d()->iterationKind; |
| 33 | |
| 34 | if (!s) { |
| 35 | QV4::Value undefined = Value::undefinedValue(); |
| 36 | return IteratorPrototype::createIterResultObject(engine: scope.engine, value: undefined, done: true); |
| 37 | } |
| 38 | |
| 39 | Value *arguments = scope.alloc(nValues: 2); |
| 40 | |
| 41 | while (index < s->d()->esTable->size()) { |
| 42 | s->d()->esTable->iterate(idx: index, k: &arguments[0], v: &arguments[1]); |
| 43 | thisObject->d()->setNextIndex = index + 1; |
| 44 | |
| 45 | if (itemKind == KeyValueIteratorKind) { |
| 46 | ScopedArrayObject resultArray(scope, scope.engine->newArrayObject()); |
| 47 | resultArray->arrayReserve(n: 2); |
| 48 | resultArray->arrayPut(index: 0, value: arguments[0]); |
| 49 | resultArray->arrayPut(index: 1, value: arguments[0]); // yes, the key is repeated. |
| 50 | resultArray->setArrayLengthUnchecked(2); |
| 51 | |
| 52 | return IteratorPrototype::createIterResultObject(engine: scope.engine, value: resultArray, done: false); |
| 53 | } |
| 54 | |
| 55 | return IteratorPrototype::createIterResultObject(engine: scope.engine, value: arguments[0], done: false); |
| 56 | } |
| 57 | |
| 58 | thisObject->d()->iteratedSet.set(e: scope.engine, newVal: nullptr); |
| 59 | QV4::Value undefined = Value::undefinedValue(); |
| 60 | return IteratorPrototype::createIterResultObject(engine: scope.engine, value: undefined, done: true); |
| 61 | } |
| 62 | |
| 63 |