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++ // Copyright (C) 2022 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
++ // Qt-Security score:significant reason:default
++
++ #include <QtCore/qrect.h>
++
++ #include <emscripten/val.h>
++
++ #if !defined(Q_OS_WASM)
++ #error This is a wasm-only file.
++ #endif // !defined(Q_OS_WASM)
++
++ QT_BEGIN_NAMESPACE
++
++ /*!
++ Converts the DOMRect (https://www.w3.org/TR/geometry-1/) \a domRect to QRectF. The behavior is
++ undefined if the provided parameter is not a DOMRect.
++
++ \since 6.5
++ \ingroup platform-type-conversions
++
++ \sa toDOMRect()
++ */
++ QRectF QRectF::fromDOMRect(emscripten::val domRect)
++ {
++ Q_ASSERT_X(domRect["constructor"]["name"].as<std::string>() == "DOMRect", Q_FUNC_INFO,
++ "Passed object is not a DOMRect");
++
++ return QRectF(domRect["left"].as<qreal>(), domRect["top"].as<qreal>(),
++ domRect["width"].as<qreal>(), domRect["height"].as<qreal>());
++ }
++
++ /*!
++ Converts this object to a DOMRect (https://www.w3.org/TR/geometry-1/).
++
++ \since 6.5
++ \ingroup platform-type-conversions
++
++ \sa fromDOMRect()
++ */
++ emscripten::val QRectF::toDOMRect() const
++ {
++ return emscripten::val::global("DOMRect").new_(left(), top(), width(), height());
++ }
++
++ /*!
++ Converts the \l {https://262.ecma-international.org/#sec-string-object}{ECMAScript string} \a
++ jsString to QString. Behavior is undefined if the provided parameter is not a string.
++
++ \since 6.6
++ \ingroup platform-type-conversions
++
++ \sa toEcmaString()
++ */
++ QString QString::fromEcmaString(emscripten::val jsString)
++ {
++ Q_ASSERT_X(jsString.isString(), Q_FUNC_INFO, "Passed object is not a string");
++
++ #ifdef __wasm64__
++ return QString::fromStdU16String(jsString.as<std::u16string>());
++ #endif
++
++ const double length = jsString["length"].as<double>();
++
++ Q_ASSERT_X((double(uint64_t(length)) != double(uint64_t(length) - 1)
++ && double(uint64_t(length)) != double(uint64_t(length) + 1))
++ || !std::numeric_limits<double>::is_iec559,
++ Q_FUNC_INFO, "The floating-point length cannot precisely represent an integer");
++
++ constexpr int zeroTerminatorLength = 1;
++ const auto lengthOfUtf16 = (length + zeroTerminatorLength) * 2;
++
++ Q_ASSERT_X((double(uint64_t(lengthOfUtf16)) != double(uint64_t(lengthOfUtf16) - 1)
++ && double(uint64_t(lengthOfUtf16)) != double(uint64_t(lengthOfUtf16) + 1))
++ || !std::numeric_limits<double>::is_iec559,
++ Q_FUNC_INFO,
++ "The floating-point lengthOfUtf16 cannot precisely represent an integer");
++
++ const QString result(uint64_t(length), Qt::Uninitialized);
++
++ static const emscripten::val stringToUTF16(emscripten::val::module_property("stringToUTF16"));
++ stringToUTF16(jsString, emscripten::val(quintptr(result.data())),
++ emscripten::val(lengthOfUtf16));
++ return result;
++ }
++
++ /*!
++ Converts this object to an
++ \l {https://262.ecma-international.org/#sec-string-object}{ECMAScript string}.
++
++ \since 6.6
++ \ingroup platform-type-conversions
++
++ \sa fromEcmaString()
++ */
++ emscripten::val QString::toEcmaString() const
++ {
++ #ifdef __wasm64__
++ return emscripten::val::u16string(toStdU16String().c_str());
++ #endif
++ static const emscripten::val UTF16ToString(emscripten::val::module_property("UTF16ToString"));
++ return UTF16ToString(emscripten::val(quintptr(utf16())));
++ }
++
++ QT_END_NAMESPACE