From ab2497c20116399e963748adf0ed2bf691d42cbf Mon Sep 17 00:00:00 2001 From: Leonardo Sobral Cunha Date: Mon, 22 Feb 2010 18:51:40 +1000 Subject: Add QEasingCurve as builtin metatype This is needed for qml, in order to be able to use easing as a valuetype. Task-number: QTBUG-8235 Reviewed-by: thierry Reviewed-by: janarve --- src/corelib/kernel/qmetatype.cpp | 26 ++++++ src/corelib/kernel/qmetatype.h | 8 +- src/corelib/kernel/qvariant.cpp | 55 ++++++++++++- src/corelib/kernel/qvariant.h | 12 ++- src/corelib/tools/qeasingcurve.cpp | 69 +++++++++++++++- src/corelib/tools/qeasingcurve.h | 11 +++ tests/auto/qeasingcurve/tst_qeasingcurve.cpp | 115 +++++++++++++++++++++++++++ 7 files changed, 285 insertions(+), 11 deletions(-) diff --git a/src/corelib/kernel/qmetatype.cpp b/src/corelib/kernel/qmetatype.cpp index 870baab..9e187d4 100644 --- a/src/corelib/kernel/qmetatype.cpp +++ b/src/corelib/kernel/qmetatype.cpp @@ -48,6 +48,7 @@ #include "qstringlist.h" #include "qvector.h" #include "qlocale.h" +#include "qeasingcurve.h" #ifdef QT_BOOTSTRAPPED # ifndef QT_NO_GEOM_VARIANT @@ -176,6 +177,7 @@ QT_BEGIN_NAMESPACE \value QVector3D QVector3D \value QVector4D QVector4D \value QQuaternion QQuaternion + \value QEasingCurve QEasingCurve \value User Base value for user types @@ -256,6 +258,7 @@ static const struct { const char * typeName; int type; } types[] = { {"QPointF", QMetaType::QPointF}, {"QRegExp", QMetaType::QRegExp}, {"QVariantHash", QMetaType::QVariantHash}, + {"QEasingCurve", QMetaType::QEasingCurve}, /* All GUI types */ {"QColorGroup", 63}, @@ -666,6 +669,11 @@ bool QMetaType::save(QDataStream &stream, int type, const void *data) stream << *static_cast(data); break; #endif +#ifndef QT_BOOTSTRAPPED + case QMetaType::QEasingCurve: + stream << *static_cast(data); + break; +#endif #ifdef QT3_SUPPORT case QMetaType::QColorGroup: #endif @@ -863,6 +871,11 @@ bool QMetaType::load(QDataStream &stream, int type, void *data) stream >> *static_cast< NS(QRegExp)*>(data); break; #endif +#ifndef QT_BOOTSTRAPPED + case QMetaType::QEasingCurve: + stream >> *static_cast< NS(QEasingCurve)*>(data); + break; +#endif #ifdef QT3_SUPPORT case QMetaType::QColorGroup: #endif @@ -1007,6 +1020,10 @@ void *QMetaType::construct(int type, const void *copy) case QMetaType::QRegExp: return new NS(QRegExp)(*static_cast(copy)); #endif +#ifndef QT_BOOTSTRAPPED + case QMetaType::QEasingCurve: + return new NS(QEasingCurve)(*static_cast(copy)); +#endif case QMetaType::Void: return 0; default: @@ -1098,6 +1115,10 @@ void *QMetaType::construct(int type, const void *copy) case QMetaType::QRegExp: return new NS(QRegExp); #endif +#ifndef QT_BOOTSTRAPPED + case QMetaType::QEasingCurve: + return new NS(QEasingCurve); +#endif case QMetaType::Void: return 0; default: @@ -1253,6 +1274,11 @@ void QMetaType::destroy(int type, void *data) delete static_cast< NS(QRegExp)* >(data); break; #endif +#ifndef QT_BOOTSTRAPPED + case QMetaType::QEasingCurve: + delete static_cast< NS(QEasingCurve)* >(data); + break; +#endif case QMetaType::Void: break; default: { diff --git a/src/corelib/kernel/qmetatype.h b/src/corelib/kernel/qmetatype.h index c23caed..33126e8 100644 --- a/src/corelib/kernel/qmetatype.h +++ b/src/corelib/kernel/qmetatype.h @@ -69,7 +69,7 @@ public: QBitArray = 13, QDate = 14, QTime = 15, QDateTime = 16, QUrl = 17, QLocale = 18, QRect = 19, QRectF = 20, QSize = 21, QSizeF = 22, QLine = 23, QLineF = 24, QPoint = 25, QPointF = 26, QRegExp = 27, - QVariantHash = 28, LastCoreType = 28 /* QVariantHash */, + QVariantHash = 28, QEasingCurve = 29, LastCoreType = QEasingCurve, FirstGuiType = 63 /* QColorGroup */, #ifdef QT3_SUPPORT @@ -81,12 +81,12 @@ public: QTextLength = 78, QTextFormat = 79, QMatrix = 80, QTransform = 81, QMatrix4x4 = 82, QVector2D = 83, QVector3D = 84, QVector4D = 85, QQuaternion = 86, - LastGuiType = 86 /* QQuaternion */, + LastGuiType = QQuaternion, FirstCoreExtType = 128 /* VoidStar */, VoidStar = 128, Long = 129, Short = 130, Char = 131, ULong = 132, UShort = 133, UChar = 134, Float = 135, QObjectStar = 136, QWidgetStar = 137, - LastCoreExtType = 137 /* QWidgetStar */, + LastCoreExtType = QWidgetStar, // This logic must match the one in qglobal.h #if defined(QT_COORD_TYPE) @@ -290,6 +290,7 @@ class QPointF; #ifndef QT_NO_REGEXP class QRegExp; #endif +class QEasingCurve; class QWidget; class QObject; @@ -359,6 +360,7 @@ Q_DECLARE_BUILTIN_METATYPE(QPointF, QPointF) #ifndef QT_NO_REGEXP Q_DECLARE_BUILTIN_METATYPE(QRegExp, QRegExp) #endif +Q_DECLARE_BUILTIN_METATYPE(QEasingCurve, QEasingCurve) #ifdef QT3_SUPPORT Q_DECLARE_BUILTIN_METATYPE(QColorGroup, QColorGroup) diff --git a/src/corelib/kernel/qvariant.cpp b/src/corelib/kernel/qvariant.cpp index e1b5825..384a3cd 100644 --- a/src/corelib/kernel/qvariant.cpp +++ b/src/corelib/kernel/qvariant.cpp @@ -46,6 +46,7 @@ #include "qdebug.h" #include "qmap.h" #include "qdatetime.h" +#include "qeasingcurve.h" #include "qlist.h" #include "qstring.h" #include "qstringlist.h" @@ -146,6 +147,11 @@ static void construct(QVariant::Private *x, const void *copy) v_construct(x, copy); break; #endif +#ifndef QT_BOOTSTRAPPED + case QVariant::EasingCurve: + v_construct(x, copy); + break; +#endif case QVariant::Int: x->data.i = copy ? *static_cast(copy) : 0; break; @@ -259,6 +265,11 @@ static void clear(QVariant::Private *d) v_clear(d); break; #endif +#ifndef QT_BOOTSTRAPPED + case QVariant::EasingCurve: + v_clear(d); + break; +#endif case QVariant::LongLong: case QVariant::ULongLong: case QVariant::Double: @@ -317,6 +328,9 @@ static bool isNull(const QVariant::Private *d) case QVariant::PointF: return v_cast(d)->isNull(); #endif +#ifndef QT_BOOTSTRAPPED + case QVariant::EasingCurve: +#endif case QVariant::Url: case QVariant::Locale: case QVariant::RegExp: @@ -435,6 +449,10 @@ static bool compare(const QVariant::Private *a, const QVariant::Private *b) return *v_cast(a) == *v_cast(b); case QVariant::DateTime: return *v_cast(a) == *v_cast(b); +#ifndef QT_BOOTSTRAPPED + case QVariant::EasingCurve: + return *v_cast(a) == *v_cast(b); +#endif case QVariant::ByteArray: return *v_cast(a) == *v_cast(b); case QVariant::BitArray: @@ -1097,6 +1115,11 @@ static void streamDebug(QDebug dbg, const QVariant &v) case QVariant::DateTime: dbg.nospace() << v.toDateTime(); break; +#ifndef QT_BOOTSTRAPPED + case QVariant::EasingCurve: + dbg.nospace() << v.toEasingCurve(); + break; +#endif case QVariant::ByteArray: dbg.nospace() << v.toByteArray(); break; @@ -1265,6 +1288,7 @@ const QVariant::Handler *QVariant::handler = &qt_kernel_variant_handler; \value Date a QDate \value DateTime a QDateTime \value Double a double + \value EasingCurve a QEasingCurve \value Font a QFont \value Hash a QVariantHash \value Icon a QIcon @@ -1483,6 +1507,12 @@ QVariant::QVariant(const char *val) */ /*! + \fn QVariant::QVariant(const QEasingCurve &val) + + Constructs a new variant with an easing curve value, \a val. +*/ + +/*! \fn QVariant::QVariant(const QByteArray &val) Constructs a new variant with a bytearray value, \a val. @@ -1681,6 +1711,10 @@ QVariant::QVariant(const QTime &val) { d.is_null = false; d.type = Time; v_construct(&d, val); } QVariant::QVariant(const QDateTime &val) { d.is_null = false; d.type = DateTime; v_construct(&d, val); } +#ifndef QT_BOOTSTRAPPED +QVariant::QVariant(const QEasingCurve &val) +{ d.is_null = false; d.type = EasingCurve; v_construct(&d, val); } +#endif QVariant::QVariant(const QList &list) { d.is_null = false; d.type = List; v_construct(&d, list); } QVariant::QVariant(const QMap &map) @@ -1870,7 +1904,7 @@ QVariant::Type QVariant::nameToType(const char *name) } #ifndef QT_NO_DATASTREAM -enum { MapFromThreeCount = 35 }; +enum { MapFromThreeCount = 36 }; static const ushort map_from_three[MapFromThreeCount] = { QVariant::Invalid, @@ -1902,6 +1936,7 @@ static const ushort map_from_three[MapFromThreeCount] = QVariant::Date, QVariant::Time, QVariant::DateTime, + QVariant::EasingCurve, QVariant::ByteArray, QVariant::BitArray, QVariant::KeySequence, @@ -2165,6 +2200,21 @@ QDateTime QVariant::toDateTime() const } /*! + \fn QEasingCurve QVariant::toEasingCurve() const + + Returns the variant as a QEasingCurve if the variant has type() \l + EasingCurve; otherwise returns a default easing curve. + + \sa canConvert(), convert() +*/ +#ifndef QT_BOOTSTRAPPED +QEasingCurve QVariant::toEasingCurve() const +{ + return qVariantToHelper(d, EasingCurve, handler); +} +#endif + +/*! \fn QByteArray QVariant::toByteArray() const Returns the variant as a QByteArray if the variant has type() \l @@ -2605,8 +2655,9 @@ static const quint32 qCanConvertMatrix[QVariant::LastCoreType + 1] = /*QRegExp*/ 0, -/*QHash*/ 0 +/*QHash*/ 0, +/*QEasingCurve*/ 0 }; /*! diff --git a/src/corelib/kernel/qvariant.h b/src/corelib/kernel/qvariant.h index 1a9e43a..9628dbf 100644 --- a/src/corelib/kernel/qvariant.h +++ b/src/corelib/kernel/qvariant.h @@ -60,6 +60,7 @@ class QBitArray; class QDataStream; class QDate; class QDateTime; +class QEasingCurve; class QLine; class QLineF; class QLocale; @@ -128,9 +129,10 @@ class Q_CORE_EXPORT QVariant LineF = 24, Point = 25, PointF = 26, - RegExp = 27, + RegExp = 27, Hash = 28, - LastCoreType = Hash, + EasingCurve = 29, + LastCoreType = EasingCurve, // value 62 is internally reserved #ifdef QT3_SUPPORT @@ -219,6 +221,9 @@ class Q_CORE_EXPORT QVariant #ifndef QT_NO_REGEXP QVariant(const QRegExp ®Exp); #endif +#ifndef QT_BOOTSTRAPPED + QVariant(const QEasingCurve &easing); +#endif QVariant(Qt::GlobalColor color); QVariant& operator=(const QVariant &other); @@ -280,6 +285,9 @@ class Q_CORE_EXPORT QVariant #ifndef QT_NO_REGEXP QRegExp toRegExp() const; #endif +#ifndef QT_BOOTSTRAPPED + QEasingCurve toEasingCurve() const; +#endif #ifdef QT3_SUPPORT inline QT3_SUPPORT int &asInt(); diff --git a/src/corelib/tools/qeasingcurve.cpp b/src/corelib/tools/qeasingcurve.cpp index b6a2df4..6b26907 100644 --- a/src/corelib/tools/qeasingcurve.cpp +++ b/src/corelib/tools/qeasingcurve.cpp @@ -600,11 +600,11 @@ QEasingCurve::QEasingCurve(Type type) Construct a copy of \a other. */ QEasingCurve::QEasingCurve(const QEasingCurve &other) -: d_ptr(new QEasingCurvePrivate) + : d_ptr(new QEasingCurvePrivate) { // ### non-atomic, requires malloc on shallow copy *d_ptr = *other.d_ptr; - if(other.d_ptr->config) + if (other.d_ptr->config) d_ptr->config = other.d_ptr->config->copy(); } @@ -629,7 +629,7 @@ QEasingCurve &QEasingCurve::operator=(const QEasingCurve &other) } *d_ptr = *other.d_ptr; - if(other.d_ptr->config) + if (other.d_ptr->config) d_ptr->config = other.d_ptr->config->copy(); return *this; @@ -845,6 +845,67 @@ QDebug operator<<(QDebug debug, const QEasingCurve &item) } return debug; } -#endif +#endif // QT_NO_DEBUG_STREAM + +#ifndef QT_NO_DATASTREAM +/*! + \fn QDataStream &operator<<(QDataStream &stream, const QEasingCurve &easing) + \relates QEasingCurve + + Writes the given \a easing curve to the given \a stream and returns a + reference to the stream. + + \sa {Format of the QDataStream Operators} +*/ + +QDataStream &operator<<(QDataStream &stream, const QEasingCurve &easing) +{ + stream << easing.d_ptr->type; + stream << intptr_t(easing.d_ptr->func); + + bool hasConfig = easing.d_ptr->config; + stream << hasConfig; + if (hasConfig) { + stream << easing.d_ptr->config->_p; + stream << easing.d_ptr->config->_a; + stream << easing.d_ptr->config->_o; + } + return stream; +} + +/*! + \fn QDataStream &operator>>(QDataStream &stream, QEasingCurve &easing) + \relates QQuaternion + + Reads an easing curve from the given \a stream into the given \a quaternion + and returns a reference to the stream. + + \sa {Format of the QDataStream Operators} +*/ + +QDataStream &operator>>(QDataStream &stream, QEasingCurve &easing) +{ + QEasingCurve::Type type; + int int_type; + stream >> int_type; + type = static_cast(int_type); + easing.setType(type); + + intptr_t ptr_func; + stream >> ptr_func; + easing.d_ptr->func = QEasingCurve::EasingFunction(ptr_func); + + bool hasConfig; + stream >> hasConfig; + if (hasConfig) { + QEasingCurveFunction *config = curveToFunctionObject(type); + stream >> config->_p; + stream >> config->_a; + stream >> config->_o; + easing.d_ptr->config = config; + } + return stream; +} +#endif // QT_NO_DATASTREAM QT_END_NAMESPACE diff --git a/src/corelib/tools/qeasingcurve.h b/src/corelib/tools/qeasingcurve.h index ae8822e..173fba4 100644 --- a/src/corelib/tools/qeasingcurve.h +++ b/src/corelib/tools/qeasingcurve.h @@ -100,13 +100,24 @@ public: qreal valueForProgress(qreal progress) const; private: QEasingCurvePrivate *d_ptr; +#ifndef QT_NO_DEBUG_STREAM friend Q_CORE_EXPORT QDebug operator<<(QDebug debug, const QEasingCurve &item); +#endif +#ifndef QT_NO_DATASTREAM + friend Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QEasingCurve&); + friend Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QEasingCurve &); +#endif }; #ifndef QT_NO_DEBUG_STREAM Q_CORE_EXPORT QDebug operator<<(QDebug debug, const QEasingCurve &item); #endif +#ifndef QT_NO_DATASTREAM +Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QEasingCurve&); +Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QEasingCurve &); +#endif + QT_END_NAMESPACE QT_END_HEADER diff --git a/tests/auto/qeasingcurve/tst_qeasingcurve.cpp b/tests/auto/qeasingcurve/tst_qeasingcurve.cpp index 12ddff1..abb4014 100644 --- a/tests/auto/qeasingcurve/tst_qeasingcurve.cpp +++ b/tests/auto/qeasingcurve/tst_qeasingcurve.cpp @@ -69,6 +69,10 @@ private slots: void valueForProgress(); void setCustomType(); void operators(); + void dataStreamOperators_data(); + void dataStreamOperators(); + void properties(); + void metaTypes(); protected: }; @@ -505,6 +509,117 @@ void tst_QEasingCurve::operators() QVERIFY(curve2 == curve); } +void tst_QEasingCurve::dataStreamOperators_data() +{ + QTest::addColumn("type"); + QTest::addColumn("amplitude"); + QTest::addColumn("overshoot"); + QTest::addColumn("period"); + QTest::addColumn("easingCurve"); + QTest::newRow("Linear") << int(QEasingCurve::Linear) << -1.0 << -1.0 << -1.0 << QEasingCurve(QEasingCurve::Linear); + QTest::newRow("OutCubic") << int(QEasingCurve::OutCubic) << -1.0 << -1.0 << -1.0 << QEasingCurve(QEasingCurve::OutCubic); + QTest::newRow("InOutSine") << int(QEasingCurve::InOutSine) << -1.0 << -1.0 << -1.0 << QEasingCurve(QEasingCurve::InOutSine); + QEasingCurve inOutElastic(QEasingCurve::InOutElastic); + inOutElastic.setPeriod(1.5); + inOutElastic.setAmplitude(2.0); + QTest::newRow("InOutElastic") << int(QEasingCurve::InOutElastic) << 2.0 << -1.0 << 1.5 << inOutElastic; + QTest::newRow("OutInBack") << int(QEasingCurve::OutInBack) << -1.0 << -1.0 << -1.0 << QEasingCurve(QEasingCurve::OutInBack); + QTest::newRow("OutCurve") << int(QEasingCurve::OutCurve) << -1.0 << -1.0 << -1.0 << QEasingCurve(QEasingCurve::OutCurve); + QEasingCurve inOutBack(QEasingCurve::InOutBack); + inOutBack.setOvershoot(0.5); + QTest::newRow("InOutBack") << int(QEasingCurve::InOutBack) << -1.0 << 0.5 << -1.0 << inOutBack; +} + +void tst_QEasingCurve::dataStreamOperators() +{ + QFETCH(int, type); + QFETCH(qreal, amplitude); + QFETCH(qreal, overshoot); + QFETCH(qreal, period); + QFETCH(QEasingCurve, easingCurve); + + // operator << + QEasingCurve curve; + curve.setType(QEasingCurve::Type(type)); + if (amplitude != -1.0) + curve.setAmplitude(amplitude); + if (overshoot != -1.0) + curve.setOvershoot(overshoot); + if (period != -1.0) + curve.setPeriod(period); + + QVERIFY(easingCurve == curve); + + QByteArray array; + QDataStream out(&array, QIODevice::WriteOnly); + out << curve; + + QDataStream in(array); + QEasingCurve curve2; + in >> curve2; + + QVERIFY(curve2 == curve); +} + +class tst_QEasingProperties : public QObject +{ + Q_OBJECT + Q_PROPERTY(QEasingCurve easing READ easing WRITE setEasing) +public: + tst_QEasingProperties(QObject *parent = 0) : QObject(parent) {} + + QEasingCurve easing() const { return e; } + void setEasing(const QEasingCurve& value) { e = value; } + +private: + QEasingCurve e; +}; + +// Test getting and setting easing properties via the metaobject system. +void tst_QEasingCurve::properties() +{ + tst_QEasingProperties obj; + + QEasingCurve inOutBack(QEasingCurve::InOutBack); + qreal overshoot = 1.5f; + inOutBack.setOvershoot(overshoot); + qreal amplitude = inOutBack.amplitude(); + qreal period = inOutBack.period(); + + obj.setEasing(inOutBack); + + QEasingCurve easing = qVariantValue(obj.property("easing")); + QCOMPARE(easing.type(), QEasingCurve::InOutBack); + QCOMPARE(easing.overshoot(), overshoot); + QCOMPARE(easing.amplitude(), amplitude); + QCOMPARE(easing.period(), period); + + QEasingCurve linear(QEasingCurve::Linear); + overshoot = linear.overshoot(); + amplitude = linear.amplitude(); + period = linear.period(); + + obj.setProperty("easing", + qVariantFromValue(QEasingCurve(QEasingCurve::Linear))); + + easing = qVariantValue(obj.property("easing")); + QCOMPARE(easing.type(), QEasingCurve::Linear); + QCOMPARE(easing.overshoot(), overshoot); + QCOMPARE(easing.amplitude(), amplitude); + QCOMPARE(easing.period(), period); +} + +void tst_QEasingCurve::metaTypes() +{ + QVERIFY(QMetaType::type("QEasingCurve") == QMetaType::QEasingCurve); + + QCOMPARE(QByteArray(QMetaType::typeName(QMetaType::QEasingCurve)), + QByteArray("QEasingCurve")); + + QVERIFY(QMetaType::isRegistered(QMetaType::QEasingCurve)); + + QVERIFY(qMetaTypeId() == QMetaType::QEasingCurve); +} QTEST_MAIN(tst_QEasingCurve) #include "tst_qeasingcurve.moc" -- cgit v0.12 ' href='#n491'>491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 
#include "Python.h"
#include "pycore_code.h"
#include "pycore_dict.h"
#include "pycore_function.h"      // _PyFunction_GetVersionForCurrentState()
#include "pycore_global_strings.h"  // _Py_ID()
#include "pycore_long.h"
#include "pycore_moduleobject.h"
#include "pycore_object.h"
#include "pycore_opcode.h"        // _PyOpcode_Caches
#include "structmember.h"         // struct PyMemberDef, T_OFFSET_EX
#include "pycore_descrobject.h"

#include <stdlib.h> // rand()

/* For guidance on adding or extending families of instructions see
 * ./adaptive.md
 */

/* Map from opcode to adaptive opcode.
  Values of zero are ignored. */
uint8_t _PyOpcode_Adaptive[256] = {
    [LOAD_ATTR] = LOAD_ATTR_ADAPTIVE,
    [LOAD_GLOBAL] = LOAD_GLOBAL_ADAPTIVE,
    [BINARY_SUBSCR] = BINARY_SUBSCR_ADAPTIVE,
    [STORE_SUBSCR] = STORE_SUBSCR_ADAPTIVE,
    [CALL] = CALL_ADAPTIVE,
    [STORE_ATTR] = STORE_ATTR_ADAPTIVE,
    [BINARY_OP] = BINARY_OP_ADAPTIVE,
    [COMPARE_OP] = COMPARE_OP_ADAPTIVE,
    [UNPACK_SEQUENCE] = UNPACK_SEQUENCE_ADAPTIVE,
    [FOR_ITER] = FOR_ITER_ADAPTIVE,
};

Py_ssize_t _Py_QuickenedCount = 0;
#ifdef Py_STATS
PyStats _py_stats_struct = { 0 };
PyStats *_py_stats = &_py_stats_struct;

#define ADD_STAT_TO_DICT(res, field) \
    do { \
        PyObject *val = PyLong_FromUnsignedLongLong(stats->field); \
        if (val == NULL) { \
            Py_DECREF(res); \
            return NULL; \
        } \
        if (PyDict_SetItemString(res, #field, val) == -1) { \
            Py_DECREF(res); \
            Py_DECREF(val); \
            return NULL; \
        } \
        Py_DECREF(val); \
    } while(0);

static PyObject*
stats_to_dict(SpecializationStats *stats)
{
    PyObject *res = PyDict_New();
    if (res == NULL) {
        return NULL;
    }
    ADD_STAT_TO_DICT(res, success);
    ADD_STAT_TO_DICT(res, failure);
    ADD_STAT_TO_DICT(res, hit);
    ADD_STAT_TO_DICT(res, deferred);
    ADD_STAT_TO_DICT(res, miss);
    ADD_STAT_TO_DICT(res, deopt);
    PyObject *failure_kinds = PyTuple_New(SPECIALIZATION_FAILURE_KINDS);
    if (failure_kinds == NULL) {
        Py_DECREF(res);
        return NULL;
    }
    for (int i = 0; i < SPECIALIZATION_FAILURE_KINDS; i++) {
        PyObject *stat = PyLong_FromUnsignedLongLong(stats->failure_kinds[i]);
        if (stat == NULL) {
            Py_DECREF(res);
            Py_DECREF(failure_kinds);
            return NULL;
        }
        PyTuple_SET_ITEM(failure_kinds, i, stat);
    }
    if (PyDict_SetItemString(res, "failure_kinds", failure_kinds)) {
        Py_DECREF(res);
        Py_DECREF(failure_kinds);
        return NULL;
    }
    Py_DECREF(failure_kinds);
    return res;
}
#undef ADD_STAT_TO_DICT

static int
add_stat_dict(
    PyObject *res,
    int opcode,
    const char *name) {

    SpecializationStats *stats = &_py_stats_struct.opcode_stats[opcode].specialization;
    PyObject *d = stats_to_dict(stats);
    if (d == NULL) {
        return -1;
    }
    int err = PyDict_SetItemString(res, name, d);
    Py_DECREF(d);
    return err;
}

#ifdef Py_STATS
PyObject*
_Py_GetSpecializationStats(void) {
    PyObject *stats = PyDict_New();
    if (stats == NULL) {
        return NULL;
    }
    int err = 0;
    err += add_stat_dict(stats, LOAD_ATTR, "load_attr");
    err += add_stat_dict(stats, LOAD_GLOBAL, "load_global");
    err += add_stat_dict(stats, BINARY_SUBSCR, "binary_subscr");
    err += add_stat_dict(stats, STORE_SUBSCR, "store_subscr");
    err += add_stat_dict(stats, STORE_ATTR, "store_attr");
    err += add_stat_dict(stats, CALL, "call");
    err += add_stat_dict(stats, BINARY_OP, "binary_op");
    err += add_stat_dict(stats, COMPARE_OP, "compare_op");
    err += add_stat_dict(stats, UNPACK_SEQUENCE, "unpack_sequence");
    if (err < 0) {
        Py_DECREF(stats);
        return NULL;
    }
    return stats;
}
#endif


#define PRINT_STAT(i, field) \
    if (stats[i].field) { \
        fprintf(out, "    opcode[%d]." #field " : %" PRIu64 "\n", i, stats[i].field); \
    }

static void
print_spec_stats(FILE *out, OpcodeStats *stats)
{
    /* Mark some opcodes as specializable for stats,
     * even though we don't specialize them yet. */
    fprintf(out, "opcode[%d].specializable : 1\n", BINARY_SLICE);
    fprintf(out, "opcode[%d].specializable : 1\n", STORE_SLICE);
    for (int i = 0; i < 256; i++) {
        if (_PyOpcode_Adaptive[i]) {
            fprintf(out, "opcode[%d].specializable : 1\n", i);
        }
        PRINT_STAT(i, specialization.success);
        PRINT_STAT(i, specialization.failure);
        PRINT_STAT(i, specialization.hit);
        PRINT_STAT(i, specialization.deferred);
        PRINT_STAT(i, specialization.miss);
        PRINT_STAT(i, specialization.deopt);
        PRINT_STAT(i, execution_count);
        for (int j = 0; j < SPECIALIZATION_FAILURE_KINDS; j++) {
            uint64_t val = stats[i].specialization.failure_kinds[j];
            if (val) {
                fprintf(out, "    opcode[%d].specialization.failure_kinds[%d] : %"
                    PRIu64 "\n", i, j, val);
            }
        }
        for(int j = 0; j < 256; j++) {
            if (stats[i].pair_count[j]) {
                fprintf(out, "opcode[%d].pair_count[%d] : %" PRIu64 "\n",
                        i, j, stats[i].pair_count[j]);
            }
        }
    }
}
#undef PRINT_STAT


static void
print_call_stats(FILE *out, CallStats *stats)
{
    fprintf(out, "Calls to PyEval_EvalDefault: %" PRIu64 "\n", stats->pyeval_calls);
    fprintf(out, "Calls to Python functions inlined: %" PRIu64 "\n", stats->inlined_py_calls);
    fprintf(out, "Frames pushed: %" PRIu64 "\n", stats->frames_pushed);
    fprintf(out, "Frame objects created: %" PRIu64 "\n", stats->frame_objects_created);
    for (int i = 0; i < EVAL_CALL_KINDS; i++) {
        fprintf(out, "Calls via PyEval_EvalFrame[%d] : %" PRIu64 "\n", i, stats->eval_calls[i]);
    }
}

static void
print_object_stats(FILE *out, ObjectStats *stats)
{
    fprintf(out, "Object allocations from freelist: %" PRIu64 "\n", stats->from_freelist);
    fprintf(out, "Object frees to freelist: %" PRIu64 "\n", stats->to_freelist);
    fprintf(out, "Object allocations: %" PRIu64 "\n", stats->allocations);
    fprintf(out, "Object allocations to 512 bytes: %" PRIu64 "\n", stats->allocations512);
    fprintf(out, "Object allocations to 4 kbytes: %" PRIu64 "\n", stats->allocations4k);
    fprintf(out, "Object allocations over 4 kbytes: %" PRIu64 "\n", stats->allocations_big);
    fprintf(out, "Object frees: %" PRIu64 "\n", stats->frees);
    fprintf(out, "Object new values: %" PRIu64 "\n", stats->new_values);
    fprintf(out, "Object interpreter increfs: %" PRIu64 "\n", stats->interpreter_increfs);
    fprintf(out, "Object interpreter decrefs: %" PRIu64 "\n", stats->interpreter_decrefs);
    fprintf(out, "Object increfs: %" PRIu64 "\n", stats->increfs);
    fprintf(out, "Object decrefs: %" PRIu64 "\n", stats->decrefs);
    fprintf(out, "Object materialize dict (on request): %" PRIu64 "\n", stats->dict_materialized_on_request);
    fprintf(out, "Object materialize dict (new key): %" PRIu64 "\n", stats->dict_materialized_new_key);
    fprintf(out, "Object materialize dict (too big): %" PRIu64 "\n", stats->dict_materialized_too_big);
    fprintf(out, "Object materialize dict (str subclass): %" PRIu64 "\n", stats->dict_materialized_str_subclass);
}

static void
print_stats(FILE *out, PyStats *stats) {
    print_spec_stats(out, stats->opcode_stats);
    print_call_stats(out, &stats->call_stats);
    print_object_stats(out, &stats->object_stats);
}

void
_Py_StatsClear(void)
{
    _py_stats_struct = (PyStats) { 0 };
}

void
_Py_PrintSpecializationStats(int to_file)
{
    if (_py_stats == NULL) {
        return;
    }
    FILE *out = stderr;
    if (to_file) {
        /* Write to a file instead of stderr. */
# ifdef MS_WINDOWS
        const char *dirname = "c:\\temp\\py_stats\\";
# else
        const char *dirname = "/tmp/py_stats/";
# endif
        /* Use random 160 bit number as file name,
        * to avoid both accidental collisions and
        * symlink attacks. */
        unsigned char rand[20];
        char hex_name[41];
        _PyOS_URandomNonblock(rand, 20);
        for (int i = 0; i < 20; i++) {
            hex_name[2*i] = "0123456789abcdef"[rand[i]&15];
            hex_name[2*i+1] = "0123456789abcdef"[(rand[i]>>4)&15];
        }
        hex_name[40] = '\0';
        char buf[64];
        assert(strlen(dirname) + 40 + strlen(".txt") < 64);
        sprintf(buf, "%s%s.txt", dirname, hex_name);
        FILE *fout = fopen(buf, "w");
        if (fout) {
            out = fout;
        }
    }
    else {
        fprintf(out, "Specialization stats:\n");
    }
    print_stats(out, _py_stats);
    if (out != stderr) {
        fclose(out);
    }
}

#ifdef Py_STATS

#define SPECIALIZATION_FAIL(opcode, kind) \
do { \
    if (_py_stats) { \
        _py_stats->opcode_stats[opcode].specialization.failure_kinds[kind]++; \
    } \
} while (0)

#endif
#endif

#ifndef SPECIALIZATION_FAIL
#define SPECIALIZATION_FAIL(opcode, kind) ((void)0)
#endif

// Insert adaptive instructions and superinstructions. This cannot fail.
void
_PyCode_Quicken(PyCodeObject *code)
{
    _Py_QuickenedCount++;
    int previous_opcode = -1;
    _Py_CODEUNIT *instructions = _PyCode_CODE(code);
    for (int i = 0; i < Py_SIZE(code); i++) {
        int opcode = _Py_OPCODE(instructions[i]);
        uint8_t adaptive_opcode = _PyOpcode_Adaptive[opcode];
        if (adaptive_opcode) {
            _Py_SET_OPCODE(instructions[i], adaptive_opcode);
            // Make sure the adaptive counter is zero:
            assert(instructions[i + 1] == 0);
            previous_opcode = -1;
            i += _PyOpcode_Caches[opcode];
        }
        else {
            assert(!_PyOpcode_Caches[opcode]);
            switch (opcode) {
                case EXTENDED_ARG:
                    _Py_SET_OPCODE(instructions[i], EXTENDED_ARG_QUICK);
                    break;
                case JUMP_BACKWARD:
                    _Py_SET_OPCODE(instructions[i], JUMP_BACKWARD_QUICK);
                    break;
                case RESUME:
                    _Py_SET_OPCODE(instructions[i], RESUME_QUICK);
                    break;
                case LOAD_FAST:
                    switch(previous_opcode) {
                        case LOAD_FAST:
                            _Py_SET_OPCODE(instructions[i - 1],
                                           LOAD_FAST__LOAD_FAST);
                            break;
                        case STORE_FAST:
                            _Py_SET_OPCODE(instructions[i - 1],
                                           STORE_FAST__LOAD_FAST);
                            break;
                        case LOAD_CONST:
                            _Py_SET_OPCODE(instructions[i - 1],
                                           LOAD_CONST__LOAD_FAST);
                            break;
                    }
                    break;
                case STORE_FAST:
                    if (previous_opcode == STORE_FAST) {
                        _Py_SET_OPCODE(instructions[i - 1],
                                       STORE_FAST__STORE_FAST);
                    }
                    break;
                case LOAD_CONST:
                    if (previous_opcode == LOAD_FAST) {
                        _Py_SET_OPCODE(instructions[i - 1],
                                       LOAD_FAST__LOAD_CONST);
                    }
                    break;
            }
            previous_opcode = opcode;
        }
    }
}

static inline int
miss_counter_start(void) {
    /* Starting value for the counter.
     * This value needs to be not too low, otherwise
     * it would cause excessive de-optimization.
     * Neither should it be too high, or that would delay
     * de-optimization excessively when it is needed.
     * A value around 50 seems to work, and we choose a
     * prime number to avoid artifacts.
     */
    return 53;
}

#define SIMPLE_FUNCTION 0

/* Common */

#define SPEC_FAIL_OTHER 0
#define SPEC_FAIL_NO_DICT 1
#define SPEC_FAIL_OVERRIDDEN 2
#define SPEC_FAIL_OUT_OF_VERSIONS 3
#define SPEC_FAIL_OUT_OF_RANGE 4
#define SPEC_FAIL_EXPECTED_ERROR 5
#define SPEC_FAIL_WRONG_NUMBER_ARGUMENTS 6

#define SPEC_FAIL_LOAD_GLOBAL_NON_STRING_OR_SPLIT 18

/* Attributes */

#define SPEC_FAIL_ATTR_OVERRIDING_DESCRIPTOR 8
#define SPEC_FAIL_ATTR_NON_OVERRIDING_DESCRIPTOR 9
#define SPEC_FAIL_ATTR_NOT_DESCRIPTOR 10
#define SPEC_FAIL_ATTR_METHOD 11
#define SPEC_FAIL_ATTR_MUTABLE_CLASS 12
#define SPEC_FAIL_ATTR_PROPERTY 13
#define SPEC_FAIL_ATTR_NON_OBJECT_SLOT 14
#define SPEC_FAIL_ATTR_READ_ONLY 15
#define SPEC_FAIL_ATTR_AUDITED_SLOT 16
#define SPEC_FAIL_ATTR_NOT_MANAGED_DICT 17
#define SPEC_FAIL_ATTR_NON_STRING_OR_SPLIT 18
#define SPEC_FAIL_ATTR_MODULE_ATTR_NOT_FOUND 19

#define SPEC_FAIL_ATTR_SHADOWED 21
#define SPEC_FAIL_ATTR_BUILTIN_CLASS_METHOD 22
#define SPEC_FAIL_ATTR_CLASS_METHOD_OBJ 23
#define SPEC_FAIL_ATTR_OBJECT_SLOT 24
#define SPEC_FAIL_ATTR_HAS_MANAGED_DICT 25
#define SPEC_FAIL_ATTR_INSTANCE_ATTRIBUTE 26
#define SPEC_FAIL_ATTR_METACLASS_ATTRIBUTE 27

/* Binary subscr and store subscr */

#define SPEC_FAIL_SUBSCR_ARRAY_INT 8
#define SPEC_FAIL_SUBSCR_ARRAY_SLICE 9
#define SPEC_FAIL_SUBSCR_LIST_SLICE 10
#define SPEC_FAIL_SUBSCR_TUPLE_SLICE 11
#define SPEC_FAIL_SUBSCR_STRING_INT 12
#define SPEC_FAIL_SUBSCR_STRING_SLICE 13
#define SPEC_FAIL_SUBSCR_BUFFER_INT 15
#define SPEC_FAIL_SUBSCR_BUFFER_SLICE 16
#define SPEC_FAIL_SUBSCR_SEQUENCE_INT 17

/* Store subscr */
#define SPEC_FAIL_SUBSCR_BYTEARRAY_INT 18
#define SPEC_FAIL_SUBSCR_BYTEARRAY_SLICE 19
#define SPEC_FAIL_SUBSCR_PY_SIMPLE 20
#define SPEC_FAIL_SUBSCR_PY_OTHER 21
#define SPEC_FAIL_SUBSCR_DICT_SUBCLASS_NO_OVERRIDE 22
#define SPEC_FAIL_SUBSCR_NOT_HEAP_TYPE 23

/* Binary op */

#define SPEC_FAIL_BINARY_OP_ADD_DIFFERENT_TYPES          8
#define SPEC_FAIL_BINARY_OP_ADD_OTHER                    9
#define SPEC_FAIL_BINARY_OP_AND_DIFFERENT_TYPES         10
#define SPEC_FAIL_BINARY_OP_AND_INT                     11
#define SPEC_FAIL_BINARY_OP_AND_OTHER                   12
#define SPEC_FAIL_BINARY_OP_FLOOR_DIVIDE                13
#define SPEC_FAIL_BINARY_OP_LSHIFT                      14
#define SPEC_FAIL_BINARY_OP_MATRIX_MULTIPLY             15
#define SPEC_FAIL_BINARY_OP_MULTIPLY_DIFFERENT_TYPES    16
#define SPEC_FAIL_BINARY_OP_MULTIPLY_OTHER              17
#define SPEC_FAIL_BINARY_OP_OR                          18
#define SPEC_FAIL_BINARY_OP_POWER                       19
#define SPEC_FAIL_BINARY_OP_REMAINDER                   20
#define SPEC_FAIL_BINARY_OP_RSHIFT                      21
#define SPEC_FAIL_BINARY_OP_SUBTRACT_DIFFERENT_TYPES    22
#define SPEC_FAIL_BINARY_OP_SUBTRACT_OTHER              23
#define SPEC_FAIL_BINARY_OP_TRUE_DIVIDE_DIFFERENT_TYPES 24
#define SPEC_FAIL_BINARY_OP_TRUE_DIVIDE_FLOAT           25
#define SPEC_FAIL_BINARY_OP_TRUE_DIVIDE_OTHER           26
#define SPEC_FAIL_BINARY_OP_XOR                         27

/* Calls */
#define SPEC_FAIL_CALL_COMPLEX_PARAMETERS 9
#define SPEC_FAIL_CALL_CO_NOT_OPTIMIZED 10
/* SPEC_FAIL_METHOD  defined as 11 above */

#define SPEC_FAIL_CALL_INSTANCE_METHOD 11
#define SPEC_FAIL_CALL_CMETHOD 12
#define SPEC_FAIL_CALL_PYCFUNCTION 13
#define SPEC_FAIL_CALL_PYCFUNCTION_WITH_KEYWORDS 14
#define SPEC_FAIL_CALL_PYCFUNCTION_FAST_WITH_KEYWORDS 15
#define SPEC_FAIL_CALL_PYCFUNCTION_NOARGS 16
#define SPEC_FAIL_CALL_BAD_CALL_FLAGS 17
#define SPEC_FAIL_CALL_CLASS 18
#define SPEC_FAIL_CALL_PYTHON_CLASS 19
#define SPEC_FAIL_CALL_METHOD_DESCRIPTOR 20
#define SPEC_FAIL_CALL_BOUND_METHOD 21
#define SPEC_FAIL_CALL_STR 22
#define SPEC_FAIL_CALL_CLASS_NO_VECTORCALL 23
#define SPEC_FAIL_CALL_CLASS_MUTABLE 24
#define SPEC_FAIL_CALL_KWNAMES 25
#define SPEC_FAIL_CALL_METHOD_WRAPPER 26
#define SPEC_FAIL_CALL_OPERATOR_WRAPPER 27
#define SPEC_FAIL_CALL_PYFUNCTION 28
#define SPEC_FAIL_CALL_PEP_523 29

/* COMPARE_OP */
#define SPEC_FAIL_COMPARE_OP_DIFFERENT_TYPES 12
#define SPEC_FAIL_COMPARE_OP_STRING 13
#define SPEC_FAIL_COMPARE_OP_NOT_FOLLOWED_BY_COND_JUMP 14
#define SPEC_FAIL_COMPARE_OP_BIG_INT 15
#define SPEC_FAIL_COMPARE_OP_BYTES 16
#define SPEC_FAIL_COMPARE_OP_TUPLE 17
#define SPEC_FAIL_COMPARE_OP_LIST 18
#define SPEC_FAIL_COMPARE_OP_SET 19
#define SPEC_FAIL_COMPARE_OP_BOOL 20
#define SPEC_FAIL_COMPARE_OP_BASEOBJECT 21
#define SPEC_FAIL_COMPARE_OP_FLOAT_LONG 22
#define SPEC_FAIL_COMPARE_OP_LONG_FLOAT 23
#define SPEC_FAIL_COMPARE_OP_EXTENDED_ARG 24

/* FOR_ITER */
#define SPEC_FAIL_FOR_ITER_GENERATOR 10
#define SPEC_FAIL_FOR_ITER_COROUTINE 11
#define SPEC_FAIL_FOR_ITER_ASYNC_GENERATOR 12
#define SPEC_FAIL_FOR_ITER_LIST 13
#define SPEC_FAIL_FOR_ITER_TUPLE 14
#define SPEC_FAIL_FOR_ITER_SET 15
#define SPEC_FAIL_FOR_ITER_STRING 16
#define SPEC_FAIL_FOR_ITER_BYTES 17
#define SPEC_FAIL_FOR_ITER_RANGE 18
#define SPEC_FAIL_FOR_ITER_ITERTOOLS 19
#define SPEC_FAIL_FOR_ITER_DICT_KEYS 20
#define SPEC_FAIL_FOR_ITER_DICT_ITEMS 21
#define SPEC_FAIL_FOR_ITER_DICT_VALUES 22
#define SPEC_FAIL_FOR_ITER_ENUMERATE 23
#define SPEC_FAIL_FOR_ITER_MAP 24
#define SPEC_FAIL_FOR_ITER_ZIP 25
#define SPEC_FAIL_FOR_ITER_SEQ_ITER 26
#define SPEC_FAIL_FOR_ITER_REVERSED_LIST 27
#define SPEC_FAIL_FOR_ITER_CALLABLE 28
#define SPEC_FAIL_FOR_ITER_ASCII_STRING 29

// UNPACK_SEQUENCE

#define SPEC_FAIL_UNPACK_SEQUENCE_ITERATOR 8
#define SPEC_FAIL_UNPACK_SEQUENCE_SEQUENCE 9


static int
specialize_module_load_attr(PyObject *owner, _Py_CODEUNIT *instr,
                            PyObject *name, int opcode, int opcode_module)
{
    _PyAttrCache *cache = (_PyAttrCache *)(instr + 1);
    PyModuleObject *m = (PyModuleObject *)owner;
    PyObject *value = NULL;
    assert((owner->ob_type->tp_flags & Py_TPFLAGS_MANAGED_DICT) == 0);
    PyDictObject *dict = (PyDictObject *)m->md_dict;
    if (dict == NULL) {
        SPECIALIZATION_FAIL(opcode, SPEC_FAIL_NO_DICT);
        return -1;
    }
    if (dict->ma_keys->dk_kind != DICT_KEYS_UNICODE) {
        SPECIALIZATION_FAIL(opcode, SPEC_FAIL_ATTR_NON_STRING_OR_SPLIT);
        return -1;
    }
    Py_ssize_t index = _PyDict_GetItemHint(dict, &_Py_ID(__getattr__), -1,
                                           &value);
    assert(index != DKIX_ERROR);
    if (index != DKIX_EMPTY) {
        SPECIALIZATION_FAIL(opcode, SPEC_FAIL_ATTR_MODULE_ATTR_NOT_FOUND);
        return -1;
    }
    index = _PyDict_GetItemHint(dict, name, -1, &value);
    assert (index != DKIX_ERROR);
    if (index != (uint16_t)index) {
        SPECIALIZATION_FAIL(opcode, SPEC_FAIL_OUT_OF_RANGE);
        return -1;
    }
    uint32_t keys_version = _PyDictKeys_GetVersionForCurrentState(dict->ma_keys);
    if (keys_version == 0) {
        SPECIALIZATION_FAIL(opcode, SPEC_FAIL_OUT_OF_VERSIONS);
        return -1;
    }
    write_u32(cache->version, keys_version);
    cache->index = (uint16_t)index;
    _Py_SET_OPCODE(*instr, opcode_module);
    return 0;
}



/* Attribute specialization */

typedef enum {
    OVERRIDING, /* Is an overriding descriptor, and will remain so. */
    METHOD, /* Attribute has Py_TPFLAGS_METHOD_DESCRIPTOR set */
    PROPERTY, /* Is a property */
    OBJECT_SLOT, /* Is an object slot descriptor */
    OTHER_SLOT, /* Is a slot descriptor of another type */
    NON_OVERRIDING, /* Is another non-overriding descriptor, and is an instance of an immutable class*/
    BUILTIN_CLASSMETHOD, /* Builtin methods with METH_CLASS */
    PYTHON_CLASSMETHOD, /* Python classmethod(func) object */
    NON_DESCRIPTOR, /* Is not a descriptor, and is an instance of an immutable class */
    MUTABLE,   /* Instance of a mutable class; might, or might not, be a descriptor */
    ABSENT, /* Attribute is not present on the class */
    DUNDER_CLASS, /* __class__ attribute */
    GETSET_OVERRIDDEN /* __getattribute__ or __setattr__ has been overridden */
} DescriptorClassification;


static DescriptorClassification
analyze_descriptor(PyTypeObject *type, PyObject *name, PyObject **descr, int store)
{
    if (store) {
        if (type->tp_setattro != PyObject_GenericSetAttr) {
            *descr = NULL;
            return GETSET_OVERRIDDEN;
        }
    }
    else {
        if (type->tp_getattro != PyObject_GenericGetAttr) {
            *descr = NULL;
            return GETSET_OVERRIDDEN;
        }
    }
    PyObject *descriptor = _PyType_Lookup(type, name);
    *descr = descriptor;
    if (descriptor == NULL) {
        return ABSENT;
    }
    PyTypeObject *desc_cls = Py_TYPE(descriptor);
    if (!(desc_cls->tp_flags & Py_TPFLAGS_IMMUTABLETYPE)) {
        return MUTABLE;
    }
    if (desc_cls->tp_descr_set) {
        if (desc_cls == &PyMemberDescr_Type) {
            PyMemberDescrObject *member = (PyMemberDescrObject *)descriptor;
            struct PyMemberDef *dmem = member->d_member;
            if (dmem->type == T_OBJECT_EX) {
                return OBJECT_SLOT;
            }
            return OTHER_SLOT;
        }
        if (desc_cls == &PyProperty_Type) {
            return PROPERTY;
        }
        if (PyUnicode_CompareWithASCIIString(name, "__class__") == 0) {
            if (descriptor == _PyType_Lookup(&PyBaseObject_Type, name)) {
                return DUNDER_CLASS;
            }
        }
        if (store) {
            return OVERRIDING;
        }
    }
    if (desc_cls->tp_descr_get) {
        if (desc_cls->tp_flags & Py_TPFLAGS_METHOD_DESCRIPTOR) {
            return METHOD;
        }
        if (Py_IS_TYPE(descriptor, &PyClassMethodDescr_Type)) {
            return BUILTIN_CLASSMETHOD;
        }
        if (Py_IS_TYPE(descriptor, &PyClassMethod_Type)) {
            return PYTHON_CLASSMETHOD;
        }
        return NON_OVERRIDING;
    }
    return NON_DESCRIPTOR;
}

static int
specialize_dict_access(
    PyObject *owner, _Py_CODEUNIT *instr, PyTypeObject *type,
    DescriptorClassification kind, PyObject *name,
    int base_op, int values_op, int hint_op)
{
    assert(kind == NON_OVERRIDING || kind == NON_DESCRIPTOR || kind == ABSENT ||
        kind == BUILTIN_CLASSMETHOD || kind == PYTHON_CLASSMETHOD);
    // No descriptor, or non overriding.
    if ((type->tp_flags & Py_TPFLAGS_MANAGED_DICT) == 0) {
        SPECIALIZATION_FAIL(base_op, SPEC_FAIL_ATTR_NOT_MANAGED_DICT);
        return 0;
    }
    _PyAttrCache *cache = (_PyAttrCache *)(instr + 1);
    PyObject **dictptr = _PyObject_ManagedDictPointer(owner);
    PyDictObject *dict = (PyDictObject *)*dictptr;
    if (dict == NULL) {
        // Virtual dictionary
        PyDictKeysObject *keys = ((PyHeapTypeObject *)type)->ht_cached_keys;
        assert(PyUnicode_CheckExact(name));
        Py_ssize_t index = _PyDictKeys_StringLookup(keys, name);
        assert (index != DKIX_ERROR);
        if (index != (uint16_t)index) {
            SPECIALIZATION_FAIL(base_op, SPEC_FAIL_OUT_OF_RANGE);
            return 0;
        }
        write_u32(cache->version, type->tp_version_tag);
        cache->index = (uint16_t)index;
        _Py_SET_OPCODE(*instr, values_op);
    }
    else {
        if (!PyDict_CheckExact(dict)) {
            SPECIALIZATION_FAIL(base_op, SPEC_FAIL_NO_DICT);
            return 0;
        }
        // We found an instance with a __dict__.
        PyObject *value = NULL;
        Py_ssize_t hint =
            _PyDict_GetItemHint(dict, name, -1, &value);
        if (hint != (uint16_t)hint) {
            SPECIALIZATION_FAIL(base_op, SPEC_FAIL_OUT_OF_RANGE);
            return 0;
        }
        cache->index = (uint16_t)hint;
        write_u32(cache->version, type->tp_version_tag);
        _Py_SET_OPCODE(*instr, hint_op);
    }
    return 1;
}

static int specialize_attr_loadmethod(PyObject* owner, _Py_CODEUNIT* instr, PyObject* name,
    PyObject* descr, DescriptorClassification kind);
static int specialize_class_load_attr(PyObject* owner, _Py_CODEUNIT* instr, PyObject* name);
static int function_kind(PyCodeObject *code);

int
_Py_Specialize_LoadAttr(PyObject *owner, _Py_CODEUNIT *instr, PyObject *name)
{
    assert(_PyOpcode_Caches[LOAD_ATTR] == INLINE_CACHE_ENTRIES_LOAD_ATTR);
    _PyAttrCache *cache = (_PyAttrCache *)(instr + 1);
    if (PyModule_CheckExact(owner)) {
        int err = specialize_module_load_attr(owner, instr, name, LOAD_ATTR,
                                              LOAD_ATTR_MODULE);
        if (err) {
            goto fail;
        }
        goto success;
    }
    if (PyType_Check(owner)) {
        int err = specialize_class_load_attr(owner, instr, name);
        if (err) {
            goto fail;
        }
        goto success;
    }
    PyTypeObject *type = Py_TYPE(owner);
    if (type->tp_dict == NULL) {
        if (PyType_Ready(type) < 0) {
            return -1;
        }
    }
    PyObject *descr = NULL;
    DescriptorClassification kind = analyze_descriptor(type, name, &descr, 0);
    assert(descr != NULL || kind == ABSENT || kind == GETSET_OVERRIDDEN);
    switch(kind) {
        case OVERRIDING:
            SPECIALIZATION_FAIL(LOAD_ATTR, SPEC_FAIL_ATTR_OVERRIDING_DESCRIPTOR);
            goto fail;
        case METHOD:
        {
            int oparg = _Py_OPARG(*instr);
            if (oparg & 1) {
                if (specialize_attr_loadmethod(owner, instr, name, descr, kind)) {
                    goto success;
                }
            }
            SPECIALIZATION_FAIL(LOAD_ATTR, SPEC_FAIL_ATTR_METHOD);
            goto fail;
        }
        case PROPERTY:
        {
            _PyLoadMethodCache *lm_cache = (_PyLoadMethodCache *)(instr + 1);
            assert(Py_TYPE(descr) == &PyProperty_Type);
            PyObject *fget = ((_PyPropertyObject *)descr)->prop_get;
            if (fget == NULL) {
                SPECIALIZATION_FAIL(LOAD_ATTR, SPEC_FAIL_EXPECTED_ERROR);
                goto fail;
            }
            if (Py_TYPE(fget) != &PyFunction_Type) {
                SPECIALIZATION_FAIL(LOAD_ATTR, SPEC_FAIL_ATTR_PROPERTY);
                goto fail;
            }
            PyFunctionObject *func = (PyFunctionObject *)fget;
            PyCodeObject *fcode = (PyCodeObject *)func->func_code;
            int kind = function_kind(fcode);
            if (kind != SIMPLE_FUNCTION) {
                SPECIALIZATION_FAIL(LOAD_ATTR, kind);
                goto fail;
            }
            if (fcode->co_argcount != 1) {
                SPECIALIZATION_FAIL(LOAD_ATTR, SPEC_FAIL_WRONG_NUMBER_ARGUMENTS);
                goto fail;
            }
            int version = _PyFunction_GetVersionForCurrentState(func);
            if (version == 0) {
                SPECIALIZATION_FAIL(LOAD_ATTR, SPEC_FAIL_OUT_OF_VERSIONS);
                goto fail;
            }
            write_u32(lm_cache->keys_version, version);
            assert(type->tp_version_tag != 0);
            write_u32(lm_cache->type_version, type->tp_version_tag);
            /* borrowed */
            write_obj(lm_cache->descr, fget);
            _Py_SET_OPCODE(*instr, LOAD_ATTR_PROPERTY);
            goto success;
        }
        case OBJECT_SLOT:
        {
            PyMemberDescrObject *member = (PyMemberDescrObject *)descr;
            struct PyMemberDef *dmem = member->d_member;
            Py_ssize_t offset = dmem->offset;
            if (dmem->flags & PY_AUDIT_READ) {
                SPECIALIZATION_FAIL(LOAD_ATTR, SPEC_FAIL_ATTR_AUDITED_SLOT);
                goto fail;
            }
            if (offset != (uint16_t)offset) {
                SPECIALIZATION_FAIL(LOAD_ATTR, SPEC_FAIL_OUT_OF_RANGE);
                goto fail;
            }
            assert(dmem->type == T_OBJECT_EX);
            assert(offset > 0);
            cache->index = (uint16_t)offset;
            write_u32(cache->version, type->tp_version_tag);
            _Py_SET_OPCODE(*instr, LOAD_ATTR_SLOT);
            goto success;
        }
        case DUNDER_CLASS:
        {
            Py_ssize_t offset = offsetof(PyObject, ob_type);
            assert(offset == (uint16_t)offset);
            cache->index = (uint16_t)offset;
            write_u32(cache->version, type->tp_version_tag);
            _Py_SET_OPCODE(*instr, LOAD_ATTR_SLOT);
            goto success;
        }
        case OTHER_SLOT:
            SPECIALIZATION_FAIL(LOAD_ATTR, SPEC_FAIL_ATTR_NON_OBJECT_SLOT);
            goto fail;
        case MUTABLE:
            SPECIALIZATION_FAIL(LOAD_ATTR, SPEC_FAIL_ATTR_MUTABLE_CLASS);
            goto fail;
        case GETSET_OVERRIDDEN:
            SPECIALIZATION_FAIL(LOAD_ATTR, SPEC_FAIL_OVERRIDDEN);
            goto fail;
        case BUILTIN_CLASSMETHOD:
        case PYTHON_CLASSMETHOD:
        case NON_OVERRIDING:
        case NON_DESCRIPTOR:
        case ABSENT:
            break;
    }
    int err = specialize_dict_access(
        owner, instr, type, kind, name,
        LOAD_ATTR, LOAD_ATTR_INSTANCE_VALUE, LOAD_ATTR_WITH_HINT
    );
    if (err < 0) {
        return -1;
    }
    if (err) {
        goto success;
    }
fail:
    STAT_INC(LOAD_ATTR, failure);
    assert(!PyErr_Occurred());
    cache->counter = adaptive_counter_backoff(cache->counter);
    return 0;
success:
    STAT_INC(LOAD_ATTR, success);
    assert(!PyErr_Occurred());
    cache->counter = miss_counter_start();
    return 0;
}

int
_Py_Specialize_StoreAttr(PyObject *owner, _Py_CODEUNIT *instr, PyObject *name)
{
    assert(_PyOpcode_Caches[STORE_ATTR] == INLINE_CACHE_ENTRIES_STORE_ATTR);
    _PyAttrCache *cache = (_PyAttrCache *)(instr + 1);
    PyTypeObject *type = Py_TYPE(owner);
    if (PyModule_CheckExact(owner)) {
        SPECIALIZATION_FAIL(STORE_ATTR, SPEC_FAIL_OVERRIDDEN);
        goto fail;
    }
    PyObject *descr;
    DescriptorClassification kind = analyze_descriptor(type, name, &descr, 1);
    switch(kind) {
        case OVERRIDING:
            SPECIALIZATION_FAIL(STORE_ATTR, SPEC_FAIL_ATTR_OVERRIDING_DESCRIPTOR);
            goto fail;
        case METHOD:
            SPECIALIZATION_FAIL(STORE_ATTR, SPEC_FAIL_ATTR_METHOD);
            goto fail;
        case PROPERTY:
            SPECIALIZATION_FAIL(STORE_ATTR, SPEC_FAIL_ATTR_PROPERTY);
            goto fail;
        case OBJECT_SLOT:
        {
            PyMemberDescrObject *member = (PyMemberDescrObject *)descr;
            struct PyMemberDef *dmem = member->d_member;
            Py_ssize_t offset = dmem->offset;
            if (dmem->flags & READONLY) {
                SPECIALIZATION_FAIL(STORE_ATTR, SPEC_FAIL_ATTR_READ_ONLY);
                goto fail;
            }
            if (offset != (uint16_t)offset) {
                SPECIALIZATION_FAIL(STORE_ATTR, SPEC_FAIL_OUT_OF_RANGE);
                goto fail;
            }
            assert(dmem->type == T_OBJECT_EX);
            assert(offset > 0);
            cache->index = (uint16_t)offset;
            write_u32(cache->version, type->tp_version_tag);
            _Py_SET_OPCODE(*instr, STORE_ATTR_SLOT);
            goto success;
        }
        case DUNDER_CLASS:
        case OTHER_SLOT:
            SPECIALIZATION_FAIL(STORE_ATTR, SPEC_FAIL_ATTR_NON_OBJECT_SLOT);
            goto fail;
        case MUTABLE:
            SPECIALIZATION_FAIL(STORE_ATTR, SPEC_FAIL_ATTR_MUTABLE_CLASS);
            goto fail;
        case GETSET_OVERRIDDEN:
            SPECIALIZATION_FAIL(STORE_ATTR, SPEC_FAIL_OVERRIDDEN);
            goto fail;
        case BUILTIN_CLASSMETHOD:
        case PYTHON_CLASSMETHOD:
        case NON_OVERRIDING:
        case NON_DESCRIPTOR:
        case ABSENT:
            break;
    }

    int err = specialize_dict_access(
        owner, instr, type, kind, name,
        STORE_ATTR, STORE_ATTR_INSTANCE_VALUE, STORE_ATTR_WITH_HINT
    );
    if (err < 0) {
        return -1;
    }
    if (err) {
        goto success;
    }
fail:
    STAT_INC(STORE_ATTR, failure);
    assert(!PyErr_Occurred());
    cache->counter = adaptive_counter_backoff(cache->counter);
    return 0;
success:
    STAT_INC(STORE_ATTR, success);
    assert(!PyErr_Occurred());
    cache->counter = miss_counter_start();
    return 0;
}


#ifdef Py_STATS
static int
load_attr_fail_kind(DescriptorClassification kind)
{
    switch (kind) {
        case OVERRIDING:
            return SPEC_FAIL_ATTR_OVERRIDING_DESCRIPTOR;
        case METHOD:
            return SPEC_FAIL_ATTR_METHOD;
        case PROPERTY:
            return SPEC_FAIL_ATTR_PROPERTY;
        case OBJECT_SLOT:
            return SPEC_FAIL_ATTR_OBJECT_SLOT;
        case OTHER_SLOT:
            return SPEC_FAIL_ATTR_NON_OBJECT_SLOT;
        case DUNDER_CLASS:
            return SPEC_FAIL_OTHER;
        case MUTABLE:
            return SPEC_FAIL_ATTR_MUTABLE_CLASS;
        case GETSET_OVERRIDDEN:
            return SPEC_FAIL_OVERRIDDEN;
        case BUILTIN_CLASSMETHOD:
            return SPEC_FAIL_ATTR_BUILTIN_CLASS_METHOD;
        case PYTHON_CLASSMETHOD:
            return SPEC_FAIL_ATTR_CLASS_METHOD_OBJ;
        case NON_OVERRIDING:
            return SPEC_FAIL_ATTR_NON_OVERRIDING_DESCRIPTOR;
        case NON_DESCRIPTOR:
            return SPEC_FAIL_ATTR_NOT_DESCRIPTOR;
        case ABSENT:
            return SPEC_FAIL_ATTR_INSTANCE_ATTRIBUTE;
    }
    Py_UNREACHABLE();
}
#endif

static int
specialize_class_load_attr(PyObject *owner, _Py_CODEUNIT *instr,
                             PyObject *name)
{
    _PyLoadMethodCache *cache = (_PyLoadMethodCache *)(instr + 1);
    if (!PyType_CheckExact(owner) || _PyType_Lookup(Py_TYPE(owner), name)) {
        SPECIALIZATION_FAIL(LOAD_ATTR, SPEC_FAIL_ATTR_METACLASS_ATTRIBUTE);
        return -1;
    }
    PyObject *descr = NULL;
    DescriptorClassification kind = 0;
    kind = analyze_descriptor((PyTypeObject *)owner, name, &descr, 0);
    switch (kind) {
        case METHOD:
        case NON_DESCRIPTOR:
            write_u32(cache->type_version, ((PyTypeObject *)owner)->tp_version_tag);
            write_obj(cache->descr, descr);
            _Py_SET_OPCODE(*instr, LOAD_ATTR_CLASS);
            return 0;
#ifdef Py_STATS
        case ABSENT:
            SPECIALIZATION_FAIL(LOAD_ATTR, SPEC_FAIL_EXPECTED_ERROR);
            return -1;
#endif
        default:
            SPECIALIZATION_FAIL(LOAD_ATTR, load_attr_fail_kind(kind));
            return -1;
    }
}

typedef enum {
    MANAGED_VALUES = 1,
    MANAGED_DICT = 2,
    OFFSET_DICT = 3,
    NO_DICT = 4,
    LAZY_DICT = 5,
} ObjectDictKind;

// Please collect stats carefully before and after modifying. A subtle change
// can cause a significant drop in cache hits. A possible test is
// python.exe -m test_typing test_re test_dis test_zlib.
static int
specialize_attr_loadmethod(PyObject *owner, _Py_CODEUNIT *instr, PyObject *name,
PyObject *descr, DescriptorClassification kind)
{
    _PyLoadMethodCache *cache = (_PyLoadMethodCache *)(instr + 1);
    PyTypeObject *owner_cls = Py_TYPE(owner);

    assert(kind == METHOD && descr != NULL);
    ObjectDictKind dictkind;
    PyDictKeysObject *keys;
    if (owner_cls->tp_flags & Py_TPFLAGS_MANAGED_DICT) {
        PyObject *dict = *_PyObject_ManagedDictPointer(owner);
        keys = ((PyHeapTypeObject *)owner_cls)->ht_cached_keys;
        if (dict == NULL) {
            dictkind = MANAGED_VALUES;
        }
        else {
            dictkind = MANAGED_DICT;
        }
    }
    else {
        Py_ssize_t dictoffset = owner_cls->tp_dictoffset;
        if (dictoffset < 0 || dictoffset > INT16_MAX) {
            SPECIALIZATION_FAIL(LOAD_ATTR, SPEC_FAIL_OUT_OF_RANGE);
            goto fail;
        }
        if (dictoffset == 0) {
            dictkind = NO_DICT;
            keys = NULL;
        }
        else {
            PyObject *dict = *(PyObject **) ((char *)owner + dictoffset);
            if (dict == NULL) {
                // This object will have a dict if user access __dict__
                dictkind = LAZY_DICT;
                keys = NULL;
            }
            else {
                keys = ((PyDictObject *)dict)->ma_keys;
                dictkind = OFFSET_DICT;
            }
        }
    }
    if (dictkind == MANAGED_VALUES || dictkind == OFFSET_DICT) {
        Py_ssize_t index = _PyDictKeys_StringLookup(keys, name);
        if (index != DKIX_EMPTY) {
            SPECIALIZATION_FAIL(LOAD_ATTR, SPEC_FAIL_ATTR_SHADOWED);
            goto fail;
        }
        uint32_t keys_version = _PyDictKeys_GetVersionForCurrentState(keys);
        if (keys_version == 0) {
            SPECIALIZATION_FAIL(LOAD_ATTR, SPEC_FAIL_OUT_OF_VERSIONS);
            goto fail;
        }
        write_u32(cache->keys_version, keys_version);
    }
    switch(dictkind) {
        case NO_DICT:
            _Py_SET_OPCODE(*instr, LOAD_ATTR_METHOD_NO_DICT);
            break;
        case MANAGED_VALUES:
            _Py_SET_OPCODE(*instr, LOAD_ATTR_METHOD_WITH_VALUES);
            break;
        case MANAGED_DICT:
            SPECIALIZATION_FAIL(LOAD_ATTR, SPEC_FAIL_ATTR_HAS_MANAGED_DICT);
            goto fail;
        case OFFSET_DICT:
            assert(owner_cls->tp_dictoffset > 0 && owner_cls->tp_dictoffset <= INT16_MAX);
            _Py_SET_OPCODE(*instr, LOAD_ATTR_METHOD_WITH_DICT);
            break;
        case LAZY_DICT:
            assert(owner_cls->tp_dictoffset > 0 && owner_cls->tp_dictoffset <= INT16_MAX);
            _Py_SET_OPCODE(*instr, LOAD_ATTR_METHOD_LAZY_DICT);
            break;
    }
    /* `descr` is borrowed. This is safe for methods (even inherited ones from
    *  super classes!) as long as tp_version_tag is validated for two main reasons:
    *
    *  1. The class will always hold a reference to the method so it will
    *  usually not be GC-ed. Should it be deleted in Python, e.g.
    *  `del obj.meth`, tp_version_tag will be invalidated, because of reason 2.
    *
    *  2. The pre-existing type method cache (MCACHE) uses the same principles
    *  of caching a borrowed descriptor. The MCACHE infrastructure does all the
    *  heavy lifting for us. E.g. it invalidates tp_version_tag on any MRO
    *  modification, on any type object change along said MRO, etc. (see
    *  PyType_Modified usages in typeobject.c). The MCACHE has been
    *  working since Python 2.6 and it's battle-tested.
    */
    write_u32(cache->type_version, owner_cls->tp_version_tag);
    write_obj(cache->descr, descr);
    // Fall through.
    return 1;
fail:
    return 0;
}

int
_Py_Specialize_LoadGlobal(
    PyObject *globals, PyObject *builtins,
    _Py_CODEUNIT *instr, PyObject *name)
{
    assert(_PyOpcode_Caches[LOAD_GLOBAL] == INLINE_CACHE_ENTRIES_LOAD_GLOBAL);
    /* Use inline cache */
    _PyLoadGlobalCache *cache = (_PyLoadGlobalCache *)(instr + 1);
    assert(PyUnicode_CheckExact(name));
    if (!PyDict_CheckExact(globals)) {
        goto fail;
    }
    PyDictKeysObject * globals_keys = ((PyDictObject *)globals)->ma_keys;
    if (!DK_IS_UNICODE(globals_keys)) {
        SPECIALIZATION_FAIL(LOAD_GLOBAL, SPEC_FAIL_LOAD_GLOBAL_NON_STRING_OR_SPLIT);
        goto fail;
    }
    Py_ssize_t index = _PyDictKeys_StringLookup(globals_keys, name);
    if (index == DKIX_ERROR) {
        SPECIALIZATION_FAIL(LOAD_GLOBAL, SPEC_FAIL_LOAD_GLOBAL_NON_STRING_OR_SPLIT);
        goto fail;
    }
    if (index != DKIX_EMPTY) {
        if (index != (uint16_t)index) {
            goto fail;
        }
        uint32_t keys_version = _PyDictKeys_GetVersionForCurrentState(globals_keys);
        if (keys_version == 0) {
            goto fail;
        }
        cache->index = (uint16_t)index;
        write_u32(cache->module_keys_version, keys_version);
        _Py_SET_OPCODE(*instr, LOAD_GLOBAL_MODULE);
        goto success;
    }
    if (!PyDict_CheckExact(builtins)) {
        goto fail;
    }
    PyDictKeysObject * builtin_keys = ((PyDictObject *)builtins)->ma_keys;
    if (!DK_IS_UNICODE(builtin_keys)) {
        SPECIALIZATION_FAIL(LOAD_GLOBAL, SPEC_FAIL_LOAD_GLOBAL_NON_STRING_OR_SPLIT);
        goto fail;
    }
    index = _PyDictKeys_StringLookup(builtin_keys, name);
    if (index == DKIX_ERROR) {
        SPECIALIZATION_FAIL(LOAD_GLOBAL, SPEC_FAIL_LOAD_GLOBAL_NON_STRING_OR_SPLIT);
        goto fail;
    }
    if (index != (uint16_t)index) {
        goto fail;
    }
    uint32_t globals_version = _PyDictKeys_GetVersionForCurrentState(globals_keys);
    if (globals_version == 0) {
        SPECIALIZATION_FAIL(LOAD_GLOBAL, SPEC_FAIL_OUT_OF_VERSIONS);
        goto fail;
    }
    uint32_t builtins_version = _PyDictKeys_GetVersionForCurrentState(builtin_keys);
    if (builtins_version == 0) {
        SPECIALIZATION_FAIL(LOAD_GLOBAL, SPEC_FAIL_OUT_OF_VERSIONS);
        goto fail;
    }
    if (builtins_version > UINT16_MAX) {
        SPECIALIZATION_FAIL(LOAD_GLOBAL, SPEC_FAIL_OUT_OF_RANGE);
        goto fail;
    }
    cache->index = (uint16_t)index;