diff options
Diffstat (limited to 'src/qml/qml/v4/qv4instruction.cpp')
| -rw-r--r-- | src/qml/qml/v4/qv4instruction.cpp | 412 |
1 files changed, 412 insertions, 0 deletions
diff --git a/src/qml/qml/v4/qv4instruction.cpp b/src/qml/qml/v4/qv4instruction.cpp new file mode 100644 index 0000000000..08b2570747 --- /dev/null +++ b/src/qml/qml/v4/qv4instruction.cpp @@ -0,0 +1,412 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the QtQml module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qv4instruction_p.h" +#include "qv4bindings_p.h" + +#include <QtCore/qdebug.h> +#include <private/qqmlglobal_p.h> + +// Define this to do a test dump of all the instructions at startup. This is +// helpful to test that each instruction's Instr::dump() case uses the correct +// number of tabs etc and otherwise looks correct. +// #define DEBUG_INSTR_DUMP + +QT_BEGIN_NAMESPACE + +namespace QQmlJS { + +#ifdef DEBUG_INSTR_DUMP +static struct DumpInstrAtStartup { + DumpInstrAtStartup() { + Bytecode bc; +#define DUMP_INSTR_AT_STARTUP(I, FMT) { V4InstrData<V4Instr::I> i; bc.append(i); } + FOR_EACH_V4_INSTR(DUMP_INSTR_AT_STARTUP); +#undef DUMP_INSTR_AT_STARTUP + const char *start = bc.constData(); + const char *end = start + bc.size(); + bc.dump(start, end); + } +} dump_instr_at_startup; +#endif + +int V4Instr::size(Type type) +{ +#define V4_RETURN_INSTR_SIZE(I, FMT) case I: return QML_V4_INSTR_SIZE(I, FMT); + switch (type) { + FOR_EACH_V4_INSTR(V4_RETURN_INSTR_SIZE) + } +#undef V4_RETURN_INSTR_SIZE + return 0; +} + +void Bytecode::dump(const V4Instr *i, int address) const +{ + QByteArray leading; + if (address != -1) { + leading = QByteArray::number(address); + leading.prepend(QByteArray(8 - leading.count(), ' ')); + leading.append("\t"); + } + +#define INSTR_DUMP qWarning().nospace() << leading.constData() + + switch (instructionType(i)) { + case V4Instr::Noop: + INSTR_DUMP << "\t" << "Noop"; + break; + case V4Instr::BindingId: + INSTR_DUMP << i->id.line << ":" << i->id.column << ":"; + break; + case V4Instr::Subscribe: + INSTR_DUMP << "\t" << "Subscribe" << "\t\t" << "Object_Reg(" << i->subscribeop.reg << ") Notify_Signal(" << i->subscribeop.index << ") -> Subscribe_Slot(" << i->subscribeop.offset << ")"; + break; + case V4Instr::SubscribeId: + INSTR_DUMP << "\t" << "SubscribeId" << "\t\t" << "Id_Offset(" << i->subscribeop.index << ") -> Subscribe_Slot(" << i->subscribeop.offset << ")"; + break; + case V4Instr::FetchAndSubscribe: + INSTR_DUMP << "\t" << "FetchAndSubscribe" << "\t" << "Object_Reg(" << i->fetchAndSubscribe.reg << ") Fast_Accessor(" << i->fetchAndSubscribe.property.accessors << ") -> Output_Reg(" << i->fetchAndSubscribe.reg << ") Subscription_Slot(" << i->fetchAndSubscribe.subscription << ")"; + break; + case V4Instr::LoadId: + INSTR_DUMP << "\t" << "LoadId" << "\t\t\t" << "Id_Offset(" << i->load.index << ") -> Output_Reg(" << i->load.reg << ")"; + break; + case V4Instr::LoadScope: + INSTR_DUMP << "\t" << "LoadScope" << "\t\t" << "-> Output_Reg(" << i->load.reg << ")"; + break; + case V4Instr::LoadRoot: + INSTR_DUMP << "\t" << "LoadRoot" << "\t\t" << "-> Output_Reg(" << i->load.reg << ")"; + break; + case V4Instr::LoadAttached: + INSTR_DUMP << "\t" << "LoadAttached" << "\t\t" << "Object_Reg(" << i->attached.reg << ") Attached_Index(" << i->attached.id << ") -> Output_Reg(" << i->attached.output << ")"; + break; + case V4Instr::UnaryNot: + INSTR_DUMP << "\t" << "UnaryNot" << "\t\t" << "Input_Reg(" << i->unaryop.src << ") -> Output_Reg(" << i->unaryop.output << ")"; + break; + case V4Instr::UnaryMinusReal: + INSTR_DUMP << "\t" << "UnaryMinusReal" << "\t\t" << "Input_Reg(" << i->unaryop.src << ") -> Output_Reg(" << i->unaryop.output << ")"; + break; + case V4Instr::UnaryMinusInt: + INSTR_DUMP << "\t" << "UnaryMinusInt" << "\t\t" << "Input_Reg(" << i->unaryop.src << ") -> Output_Reg(" << i->unaryop.output << ")"; + break; + case V4Instr::UnaryPlusReal: + INSTR_DUMP << "\t" << "UnaryPlusReal" << "\t\t" << "Input_Reg(" << i->unaryop.src << ") -> Output_Reg(" << i->unaryop.output << ")"; + break; + case V4Instr::UnaryPlusInt: + INSTR_DUMP << "\t" << "UnaryPlusInt" << "\t\t" << "Input_Reg(" << i->unaryop.src << ") -> Output_Reg(" << i->unaryop.output << ")"; + break; + case V4Instr::ConvertBoolToInt: + INSTR_DUMP << "\t" << "ConvertBoolToInt" << "\t" << "Input_Reg(" << i->unaryop.src << ") -> Output_Reg(" << i->unaryop.output << ")"; + break; + case V4Instr::ConvertBoolToReal: + INSTR_DUMP << "\t" << "ConvertBoolToReal" << "\t" << "Input_Reg(" << i->unaryop.src << ") -> Output_Reg(" << i->unaryop.output << ")"; + break; + case V4Instr::ConvertBoolToString: + INSTR_DUMP << "\t" << "ConvertBoolToString" << "\t" << "Input_Reg(" << i->unaryop.src << ") -> Output_Reg(" << i->unaryop.output << ")"; + break; + case V4Instr::ConvertIntToBool: + INSTR_DUMP << "\t" << "ConvertIntToBool" << "\t" << "Input_Reg(" << i->unaryop.src << ") -> Output_Reg(" << i->unaryop.output << ")"; + break; + case V4Instr::ConvertIntToReal: + INSTR_DUMP << "\t" << "ConvertIntToReal" << "\t" << "Input_Reg(" << i->unaryop.src << ") -> Output_Reg(" << i->unaryop.output << ")"; + break; + case V4Instr::ConvertIntToString: + INSTR_DUMP << "\t" << "ConvertIntToString" << "\t" << "Input_Reg(" << i->unaryop.src << ") -> Output_Reg(" << i->unaryop.output << ")"; + break; + case V4Instr::ConvertRealToBool: + INSTR_DUMP << "\t" << "ConvertRealToBool" << "\t" << "Input_Reg(" << i->unaryop.src << ") -> Output_Reg(" << i->unaryop.output << ")"; + break; + case V4Instr::ConvertRealToInt: + INSTR_DUMP << "\t" << "ConvertRealToInt" << "\t" << "Input_Reg(" << i->unaryop.src << ") -> Output_Reg(" << i->unaryop.output << ")"; + break; + case V4Instr::ConvertRealToString: + INSTR_DUMP << "\t" << "ConvertRealToString" << "\t" << "Input_Reg(" << i->unaryop.src << ") -> Output_Reg(" << i->unaryop.output << ")"; + break; + case V4Instr::ConvertStringToBool: + INSTR_DUMP << "\t" << "ConvertStringToBool" << "\t" << "Input_Reg(" << i->unaryop.src << ") -> Output_Reg(" << i->unaryop.output << ")"; + break; + case V4Instr::ConvertStringToInt: + INSTR_DUMP << "\t" << "ConvertStringToInt" << "\t" << "Input_Reg(" << i->unaryop.src << ") -> Output_Reg(" << i->unaryop.output << ")"; + break; + case V4Instr::ConvertStringToReal: + INSTR_DUMP << "\t" << "ConvertStringToReal" << "\t" << "Input_Reg(" << i->unaryop.src << ") -> Output_Reg(" << i->unaryop.output << ")"; + break; + case V4Instr::ConvertStringToUrl: + INSTR_DUMP << "\t" << "ConvertStringToUrl" << "\t" << "Input_Reg(" << i->unaryop.src << ") -> Output_Reg(" << i->unaryop.output << ")"; + break; + case V4Instr::ConvertUrlToBool: + INSTR_DUMP << "\t" << "ConvertUrlToBool" << "\t" << "Input_Reg(" << i->unaryop.src << ") -> Output_Reg(" << i->unaryop.output << ")"; + break; + case V4Instr::ConvertUrlToString: + INSTR_DUMP << "\t" << "ConvertUrlToString" << "\t" << "Input_Reg(" << i->unaryop.src << ") -> Output_Reg(" << i->unaryop.output << ")"; + break; + case V4Instr::ResolveUrl: + INSTR_DUMP << "\t" << "ResolveUrl" << "\t\t" << "Input_Reg(" << i->unaryop.src << ") -> Output_Reg(" << i->unaryop.output << ")"; + break; + case V4Instr::MathSinReal: + INSTR_DUMP << "\t" << "MathSinReal" << "\t\t" << "Input_Reg(" << i->unaryop.src << ") -> Output_Reg(" << i->unaryop.output << ")"; + break; + case V4Instr::MathCosReal: + INSTR_DUMP << "\t" << "MathCosReal" << "\t\t" << "Input_Reg(" << i->unaryop.src << ") -> Output_Reg(" << i->unaryop.output << ")"; + break; + case V4Instr::MathRoundReal: + INSTR_DUMP << "\t" << "MathRoundReal" << "\t\t" << "Input_Reg(" << i->unaryop.src << ") -> Output_Reg(" << i->unaryop.output << ")"; + break; + case V4Instr::MathFloorReal: + INSTR_DUMP << "\t" << "MathFloorReal" << "\t\t" << "Input_Reg(" << i->unaryop.src << ") -> Output_Reg(" << i->unaryop.output << ")"; + break; + case V4Instr::MathPIReal: + INSTR_DUMP << "\t" << "MathPIReal" << "\t\t" << "Input_Reg(" << i->unaryop.src << ") -> Output_Reg(" << i->unaryop.output << ")"; + break; + case V4Instr::LoadReal: + INSTR_DUMP << "\t" << "LoadReal" << "\t\t" << "Constant(" << i->real_value.value << ") -> Output_Reg(" << i->real_value.reg << ")"; + break; + case V4Instr::LoadInt: + INSTR_DUMP << "\t" << "LoadInt" << "\t\t\t" << "Constant(" << i->int_value.value << ") -> Output_Reg(" << i->int_value.reg << ")"; + break; + case V4Instr::LoadBool: + INSTR_DUMP << "\t" << "LoadBool" << "\t\t" << "Constant(" << i->bool_value.value << ") -> Output_Reg(" << i->bool_value.reg << ")"; + break; + case V4Instr::LoadString: + INSTR_DUMP << "\t" << "LoadString" << "\t\t" << "String_DataIndex(" << i->string_value.offset << ") String_Length(" << i->string_value.length << ") -> Output_Register(" << i->string_value.reg << ")"; + break; + case V4Instr::EnableV4Test: + INSTR_DUMP << "\t" << "EnableV4Test" << "\t\t" << "String_DataIndex(" << i->string_value.offset << ") String_Length(" << i->string_value.length << ")"; + break; + case V4Instr::TestV4Store: + INSTR_DUMP << "\t" << "TestV4Store" << "\t\t" << "Input_Reg(" << i->storetest.reg << ") Reg_Type(" << i->storetest.regType << ")"; + break; + case V4Instr::BitAndInt: + INSTR_DUMP << "\t" << "BitAndInt" << "\t\t" << "Input_Reg(" << i->binaryop.left << ") Input_Reg(" << i->binaryop.right << ") -> Output_Reg(" << i->binaryop.output << ")"; + break; + case V4Instr::BitOrInt: + INSTR_DUMP << "\t" << "BitOrInt" << "\t\t" << "Input_Reg(" << i->binaryop.left << ") Input_Reg(" << i->binaryop.right << ") -> Output_Reg(" << i->binaryop.output << ")"; + break; + case V4Instr::BitXorInt: + INSTR_DUMP << "\t" << "BitXorInt" << "\t\t" << "Input_Reg(" << i->binaryop.left << ") Input_Reg(" << i->binaryop.right << ") -> Output_Reg(" << i->binaryop.output << ")"; + break; + case V4Instr::AddReal: + INSTR_DUMP << "\t" << "AddReal" << "\t\t\t" << "Input_Reg(" << i->binaryop.left << ") Input_Reg(" << i->binaryop.right << ") -> Output_Reg(" << i->binaryop.output << ")"; + break; + case V4Instr::AddString: + INSTR_DUMP << "\t" << "AddString" << "\t\t" << "Input_Reg(" << i->binaryop.left << ") Input_Reg(" << i->binaryop.right << ") -> Output_Reg(" << i->binaryop.output << ")"; + break; + case V4Instr::SubReal: + INSTR_DUMP << "\t" << "SubReal" << "\t\t\t" << "Input_Reg(" << i->binaryop.left << ") Input_Reg(" << i->binaryop.right << ") -> Output_Reg(" << i->binaryop.output << ")"; + break; + case V4Instr::MulReal: + INSTR_DUMP << "\t" << "MulReal" << "\t\t\t" << "Input_Reg(" << i->binaryop.left << ") Input_Reg(" << i->binaryop.right << ") -> Output_Reg(" << i->binaryop.output << ")"; + break; + case V4Instr::DivReal: + INSTR_DUMP << "\t" << "DivReal" << "\t\t\t" << "Input_Reg(" << i->binaryop.left << ") Input_Reg(" << i->binaryop.right << ") -> Output_Reg(" << i->binaryop.output << ")"; + break; + case V4Instr::ModReal: + INSTR_DUMP << "\t" << "ModReal" << "\t\t\t" << "Input_Reg(" << i->binaryop.left << ") Input_Reg(" << i->binaryop.right << ") -> Output_Reg(" << i->binaryop.output << ")"; + break; + case V4Instr::LShiftInt: + INSTR_DUMP << "\t" << "LShiftInt" << "\t\t" << "Input_Reg(" << i->binaryop.left << ") Input_Reg(" << i->binaryop.right << ") -> Output_Reg(" << i->binaryop.output << ")"; + break; + case V4Instr::RShiftInt: + INSTR_DUMP << "\t" << "RShiftInt" << "\t\t" << "Input_Reg(" << i->binaryop.left << ") Input_Reg(" << i->binaryop.right << ") -> Output_Reg(" << i->binaryop.output << ")"; + break; + case V4Instr::URShiftInt: + INSTR_DUMP << "\t" << "URShiftInt" << "\t\t" << "Input_Reg(" << i->binaryop.left << ") Input_Reg(" << i->binaryop.right << ") -> Output_Reg(" << i->binaryop.output << ")"; + break; + case V4Instr::GtReal: + INSTR_DUMP << "\t" << "GtReal" << "\t\t\t" << "Input_Reg(" << i->binaryop.left << ") Input_Reg(" << i->binaryop.right << ") -> Output_Reg(" << i->binaryop.output << ")"; + break; + case V4Instr::LtReal: + INSTR_DUMP << "\t" << "LtReal" << "\t\t\t" << "Input_Reg(" << i->binaryop.left << ") Input_Reg(" << i->binaryop.right << ") -> Output_Reg(" << i->binaryop.output << ")"; + break; + case V4Instr::GeReal: + INSTR_DUMP << "\t" << "GeReal" << "\t\t\t" << "Input_Reg(" << i->binaryop.left << ") Input_Reg(" << i->binaryop.right << ") -> Output_Reg(" << i->binaryop.output << ")"; + break; + case V4Instr::LeReal: + INSTR_DUMP << "\t" << "LeReal" << "\t\t\t" << "Input_Reg(" << i->binaryop.left << ") Input_Reg(" << i->binaryop.right << ") -> Output_Reg(" << i->binaryop.output << ")"; + break; + case V4Instr::EqualReal: + INSTR_DUMP << "\t" << "EqualReal" << "\t\t" << "Input_Reg(" << i->binaryop.left << ") Input_Reg(" << i->binaryop.right << ") -> Output_Reg(" << i->binaryop.output << ")"; + break; + case V4Instr::NotEqualReal: + INSTR_DUMP << "\t" << "NotEqualReal" << "\t\t" << "Input_Reg(" << i->binaryop.left << ") Input_Reg(" << i->binaryop.right << ") -> Output_Reg(" << i->binaryop.output << ")"; + break; + case V4Instr::StrictEqualReal: + INSTR_DUMP << "\t" << "StrictEqualReal" << "\t\t" << "Input_Reg(" << i->binaryop.left << ") Input_Reg(" << i->binaryop.right << ") -> Output_Reg(" << i->binaryop.output << ")"; + break; + case V4Instr::StrictNotEqualReal: + INSTR_DUMP << "\t" << "StrictNotEqualReal" << "\t" << "Input_Reg(" << i->binaryop.left << ") Input_Reg(" << i->binaryop.right << ") -> Output_Reg(" << i->binaryop.output << ")"; + break; + case V4Instr::GtString: + INSTR_DUMP << "\t" << "GtString" << "\t\t" << "Input_Reg(" << i->binaryop.left << ") Input_Reg(" << i->binaryop.right << ") -> Output_Reg(" << i->binaryop.output << ")"; + break; + case V4Instr::LtString: + INSTR_DUMP << "\t" << "LtString" << "\t\t" << "Input_Reg(" << i->binaryop.left << ") Input_Reg(" << i->binaryop.right << ") -> Output_Reg(" << i->binaryop.output << ")"; + break; + case V4Instr::GeString: + INSTR_DUMP << "\t" << "GeString" << "\t\t" << "Input_Reg(" << i->binaryop.left << ") Input_Reg(" << i->binaryop.right << ") -> Output_Reg(" << i->binaryop.output << ")"; + break; + case V4Instr::LeString: + INSTR_DUMP << "\t" << "LeString" << "\t\t" << "Input_Reg(" << i->binaryop.left << ") Input_Reg(" << i->binaryop.right << ") -> Output_Reg(" << i->binaryop.output << ")"; + break; + case V4Instr::EqualString: + INSTR_DUMP << "\t" << "EqualString" << "\t\t" << "Input_Reg(" << i->binaryop.left << ") Input_Reg(" << i->binaryop.right << ") -> Output_Reg(" << i->binaryop.output << ")"; + break; + case V4Instr::NotEqualString: + INSTR_DUMP << "\t" << "NotEqualString" << "\t\t" << "Input_Reg(" << i->binaryop.left << ") Input_Reg(" << i->binaryop.right << ") -> Output_Reg(" << i->binaryop.output << ")"; + break; + case V4Instr::StrictEqualString: + INSTR_DUMP << "\t" << "StrictEqualString" << "\t" << "Input_Reg(" << i->binaryop.left << ") Input_Reg(" << i->binaryop.right << ") -> Output_Reg(" << i->binaryop.output << ")"; + break; + case V4Instr::StrictNotEqualString: + INSTR_DUMP << "\t" << "StrictNotEqualString" << "\t" << "Input_Reg(" << i->binaryop.left << ") Input_Reg(" << i->binaryop.right << ") -> Output_Reg(" << i->binaryop.output << ")"; + break; + case V4Instr::NewString: + INSTR_DUMP << "\t" << "NewString" << "\t\t" << "Register(" << i->construct.reg << ")"; + break; + case V4Instr::NewUrl: + INSTR_DUMP << "\t" << "NewUrl" << "\t\t\t" << "Register(" << i->construct.reg << ")"; + break; + case V4Instr::CleanupRegister: + INSTR_DUMP << "\t" << "CleanupRegister" << "\t\t" << "Register(" << i->cleanup.reg << ")"; + break; + case V4Instr::Fetch: + INSTR_DUMP << "\t" << "Fetch" << "\t\t\t" << "Object_Reg(" << i->fetch.reg << ") Property_Index(" << i->fetch.index << ") -> Output_Reg(" << i->fetch.reg << ")"; + break; + case V4Instr::Store: + INSTR_DUMP << "\t" << "Store" << "\t\t\t" << "Input_Reg(" << i->store.reg << ") -> Object_Reg(" << i->store.output << ") Property_Index(" << i->store.index << ")"; + break; + case V4Instr::Copy: + INSTR_DUMP << "\t" << "Copy" << "\t\t\t" << "Input_Reg(" << i->copy.src << ") -> Output_Reg(" << i->copy.reg << ")"; + break; + case V4Instr::Jump: + if (i->jump.reg != -1) { + INSTR_DUMP << "\t" << "Jump" << "\t\t\t" << "Address(" << (address + size() + i->jump.count) << ") [if false == Input_Reg(" << i->jump.reg << ")]"; + } else { + INSTR_DUMP << "\t" << "Jump" << "\t\t\t" << "Address(" << (address + size() + i->jump.count) << ")"; + } + break; + case V4Instr::BranchFalse: + INSTR_DUMP << "\t" << "BranchFalse" << "\t\t" << "Address(" << (address + size() + i->branchop.offset) << ") [if false == Input_Reg(" << i->branchop.reg << ")]"; + break; + case V4Instr::BranchTrue: + INSTR_DUMP << "\t" << "BranchTrue" << "\t\t" << "Address(" << (address + size() + i->branchop.offset) << ") [if true == Input_Reg(" << i->branchop.reg << ")]"; + break; + case V4Instr::Branch: + INSTR_DUMP << "\t" << "Branch" << "\t\t\t" << "Address(" << (address + size() + i->branchop.offset) << ")"; + break; + case V4Instr::InitString: + INSTR_DUMP << "\t" << "InitString" << "\t\t" << "String_DataIndex(" << i->initstring.dataIdx << ") -> String_Slot(" << i->initstring.offset << ")"; + break; + case V4Instr::Block: + INSTR_DUMP << "\t" << "Block" << "\t\t\t" << "Mask(" << QByteArray::number(i->blockop.block, 16).constData() << ")"; + break; + default: + INSTR_DUMP << "\t" << "Unknown"; + break; + } +} + +void Bytecode::dump(const char *start, const char *end) const +{ + const char *code = start; + while (code < end) { + const V4Instr *instr = reinterpret_cast<const V4Instr *>(code); + dump(instr, code - start); + code += V4Instr::size(instructionType(instr)); + } +} + +Bytecode::Bytecode() +{ +#ifdef QML_THREADED_INTERPRETER + decodeInstr = QV4Bindings::getDecodeInstrTable(); +#endif +} + +V4Instr::Type Bytecode::instructionType(const V4Instr *instr) const +{ +#ifdef QML_THREADED_INTERPRETER + void *code = instr->common.code; + +# define CHECK_V4_INSTR_CODE(I, FMT) \ + if (decodeInstr[static_cast<int>(V4Instr::I)] == code) \ + return V4Instr::I; + + FOR_EACH_V4_INSTR(CHECK_V4_INSTR_CODE) + Q_ASSERT_X(false, Q_FUNC_INFO, "Invalid instruction address"); + return static_cast<V4Instr::Type>(0); +# undef CHECK_V4_INSTR_CODE +#else + return static_cast<V4Instr::Type>(instr->common.type); +#endif + +} + +void Bytecode::append(V4Instr::Type type, V4Instr &instr) +{ +#ifdef QML_THREADED_INTERPRETER + instr.common.code = decodeInstr[static_cast<int>(type)]; +#else + instr.common.type = type; +#endif + d.append(reinterpret_cast<const char *>(&instr), V4Instr::size(type)); +} + +int Bytecode::remove(int offset) +{ + const V4Instr *instr = reinterpret_cast<const V4Instr *>(d.begin() + offset); + const int instrSize = V4Instr::size(instructionType(instr)); + d.remove(offset, instrSize); + return instrSize; +} + +const V4Instr &Bytecode::operator[](int offset) const +{ + return *(reinterpret_cast<const V4Instr *>(d.begin() + offset)); +} + +V4Instr &Bytecode::operator[](int offset) +{ + return *(reinterpret_cast<V4Instr *>(d.begin() + offset)); +} + +} + +QT_END_NAMESPACE |