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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtScript module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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 1.0, 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qscriptengine_p.h"
+
+#ifndef QT_NO_SCRIPT
+
+#include "qscriptvalueimpl_p.h"
+#include "qscriptcontext_p.h"
+#include "qscriptmember_p.h"
+#include "qscriptobject_p.h"
+#include "qscriptlexer_p.h"
+#include "qscriptnodepool_p.h"
+#include "qscriptparser_p.h"
+#include "qscriptcompiler_p.h"
+#include "qscriptvalueiteratorimpl_p.h"
+#include "qscriptecmaglobal_p.h"
+#include "qscriptecmamath_p.h"
+#include "qscriptecmaarray_p.h"
+#include "qscriptextenumeration_p.h"
+#include "qscriptsyntaxchecker_p.h"
+#include "qscriptsyntaxcheckresult_p.h"
+#include "qscriptclass.h"
+#include "qscriptclass_p.h"
+#include "qscriptengineagent.h"
+
+#include <QtCore/QDate>
+#include <QtCore/QDateTime>
+#include <QtCore/QRegExp>
+#include <QtCore/QStringList>
+#include <QtCore/QVariant>
+
+#ifndef QT_NO_QOBJECT
+#include "qscriptextensioninterface.h"
+#include <QtCore/QDir>
+#include <QtCore/QFile>
+#include <QtCore/QFileInfo>
+#include <QtCore/QTextStream>
+#include <QtCore/QCoreApplication>
+#include <QtCore/QPluginLoader>
+#endif
+
+Q_DECLARE_METATYPE(QScriptValue)
+#ifndef QT_NO_QOBJECT
+Q_DECLARE_METATYPE(QObjectList)
+#endif
+Q_DECLARE_METATYPE(QList<int>)
+
+QT_BEGIN_NAMESPACE
+
+extern char *qdtoa(double d, int mode, int ndigits, int *decpt, int *sign, char **rve, char **digits_str);
+extern double qstrtod(const char *s00, char const **se, bool *ok);
+
+namespace QScript {
+
+QString numberToString(qsreal value)
+{
+ if (qIsNaN(value))
+ return QLatin1String("NaN");
+
+ else if (qIsInf(value))
+ return QLatin1String(value < 0 ? "-Infinity" : "Infinity");
+
+ else if (value == 0)
+ return QLatin1String("0");
+
+ QByteArray buf;
+ buf.reserve(80);
+
+ int decpt;
+ int sign;
+ char *result = 0;
+ (void) qdtoa(value, 0, 0, &decpt, &sign, 0, &result);
+
+ if (! result)
+ return QString();
+
+ else if (decpt <= 0 && decpt > -6) {
+
+ buf.fill('0', -decpt + 2 + sign);
+
+ if (sign) // fix the sign.
+ buf[0] = '-';
+
+ buf[sign + 1] = '.';
+ buf += result;
+ }
+
+ else {
+ if (sign)
+ buf += '-';
+
+ buf += result;
+ int length = buf.length() - sign;
+
+ if (decpt <= 21 && decpt > 0) {
+ if (length <= decpt)
+ buf += QByteArray().fill('0', decpt - length);
+ else
+ buf.insert(decpt + sign, '.');
+ }
+
+ else if (result[0] >= '0' && result[0] <= '9') {
+ if (length > 1)
+ buf.insert(1 + sign, '.');
+
+ buf += 'e';
+ buf += (decpt >= 0) ? '+' : '-';
+
+ int e = decpt - 1;
+
+ if (e < 0)
+ e = -e;
+
+ if (e >= 100)
+ buf += '0' + e / 100;
+
+ if (e >= 10)
+ buf += '0' + (e % 100) / 10;
+
+ buf += '0' + e % 10;
+ }
+ }
+
+ free(result);
+
+ return QString::fromLatin1(buf);
+}
+
+static int toDigit(char c)
+{
+ if ((c >= '0') && (c <= '9'))
+ return c - '0';
+ else if ((c >= 'a') && (c <= 'z'))
+ return 10 + c - 'a';
+ else if ((c >= 'A') && (c <= 'Z'))
+ return 10 + c - 'A';
+ return -1;
+}
+
+qsreal integerFromString(const char *buf, int size, int radix)
+{
+ if (size == 0)
+ return qSNaN();
+
+ qsreal sign = 1.0;
+ int i = 0;
+ if (buf[0] == '+') {
+ ++i;
+ } else if (buf[0] == '-') {
+ sign = -1.0;
+ ++i;
+ }
+
+ if (((size-i) >= 2) && (buf[i] == '0')) {
+ if (((buf[i+1] == 'x') || (buf[i+1] == 'X'))
+ && (radix < 34)) {
+ if ((radix != 0) && (radix != 16))
+ return 0;
+ radix = 16;
+ i += 2;
+ } else {
+ if (radix == 0) {
+ radix = 8;
+ ++i;
+ }
+ }
+ } else if (radix == 0) {
+ radix = 10;
+ }
+
+ int j = i;
+ for ( ; i < size; ++i) {
+ int d = toDigit(buf[i]);
+ if ((d == -1) || (d >= radix))
+ break;
+ }
+ qsreal result;
+ if (j == i) {
+ if (!qstrcmp(buf, "Infinity"))
+ result = qInf();
+ else
+ result = qSNaN();
+ } else {
+ result = 0;
+ qsreal multiplier = 1;
+ for (--i ; i >= j; --i, multiplier *= radix)
+ result += toDigit(buf[i]) * multiplier;
+ }
+ result *= sign;
+ return result;
+}
+
+qsreal integerFromString(const QString &str, int radix)
+{
+ QByteArray ba = str.trimmed().toUtf8();
+ return integerFromString(ba.constData(), ba.size(), radix);
+}
+
+qsreal numberFromString(const QString &repr)
+{
+ QString str = repr.trimmed();
+ if ((str.length() > 2) && (str.at(0) == QLatin1Char('0')) && (str.at(1).toUpper() == QLatin1Char('X')))
+ return integerFromString(str.mid(2), 16);
+ QByteArray latin1 = str.toLatin1();
+ const char *data = latin1.constData();
+ const char *eptr = 0;
+ qsreal result = qstrtod(data, &eptr, 0);
+ if (eptr == data) {
+ if (str == QLatin1String("Infinity"))
+ result = +qInf();
+ else if (str == QLatin1String("+Infinity"))
+ result = +qInf();
+ else if (str == QLatin1String("-Infinity"))
+ result = -qInf();
+ else if (str.isEmpty())
+ result = 0;
+ else
+ result = qSNaN();
+ } else if (eptr != (data + latin1.length())) {
+ result = qSNaN();
+ }
+ return result;
+}
+
+NodePool::NodePool(const QString &fileName, QScriptEnginePrivate *engine)
+ : m_fileName(fileName), m_engine(engine)
+{
+#ifndef Q_SCRIPT_NO_EVENT_NOTIFY
+ m_id = engine->nextScriptId();
+#endif
+}
+
+NodePool::~NodePool()
+{
+ qDeleteAll(m_codeCache);
+ m_codeCache.clear();
+
+#ifndef Q_SCRIPT_NO_EVENT_NOTIFY
+ m_engine->notifyScriptUnload(id());
+#endif
+}
+
+Code *NodePool::createCompiledCode(AST::Node *node, CompilationUnit &compilation)
+{
+ QHash<AST::Node*, Code*>::const_iterator it = m_codeCache.constFind(node);
+ if (it != m_codeCache.constEnd())
+ return it.value();
+
+ Code *code = new Code();
+ code->init(compilation, this);
+
+ m_codeCache.insert(node, code);
+ return code;
+}
+
+class EvalFunction : public QScriptFunction
+{
+public:
+ EvalFunction(QScriptEnginePrivate *)
+ { length = 1; }
+
+ virtual ~EvalFunction() {}
+
+ void evaluate(QScriptContextPrivate *context, const QString &contents,
+ int lineNo, const QString &fileName, bool calledFromScript)
+ {
+ QScriptEnginePrivate *eng_p = context->engine();
+
+ QExplicitlySharedDataPointer<NodePool> pool;
+ pool = new NodePool(fileName, eng_p);
+ eng_p->setNodePool(pool.data());
+
+ QString errorMessage;
+ int errorLineNumber;
+ AST::Node *program = eng_p->createAbstractSyntaxTree(
+ contents, lineNo, &errorMessage, &errorLineNumber);
+
+ eng_p->setNodePool(0);
+
+#ifndef Q_SCRIPT_NO_EVENT_NOTIFY
+ eng_p->notifyScriptLoad(pool->id(), contents, fileName, lineNo);
+#endif
+
+ Code *code = 0;
+ if (program) {
+ Compiler compiler(eng_p);
+ compiler.setTopLevelCompiler(true);
+ CompilationUnit compilation = compiler.compile(program);
+ if (!compilation.isValid()) {
+ errorMessage = compilation.errorMessage();
+ errorLineNumber = compilation.errorLineNumber();
+ } else {
+ code = pool->createCompiledCode(program, compilation);
+ }
+ }
+
+ if (!code) {
+ context->errorLineNumber = errorLineNumber;
+ context->currentLine = errorLineNumber;
+#ifndef Q_SCRIPT_NO_EVENT_NOTIFY
+ Code *oldCode = context->m_code;
+ Code dummy;
+ dummy.astPool = pool.data();
+ context->m_code = &dummy; // so agents get the script ID
+ bool wasEvaluating = eng_p->m_evaluating;
+ eng_p->m_evaluating = true;
+ eng_p->notifyFunctionEntry(context);
+#endif
+ context->throwError(QScriptContext::SyntaxError, errorMessage);
+#ifndef Q_SCRIPT_NO_EVENT_NOTIFY
+ eng_p->notifyFunctionExit(context);
+ eng_p->m_evaluating = wasEvaluating;
+ context->m_code = oldCode;
+#endif
+ return;
+ }
+
+ if (calledFromScript) {
+ if (QScriptContextPrivate *pc = context->parentContext()) {
+ context->setActivationObject(pc->activationObject());
+ context->setThisObject(pc->thisObject());
+ context->m_scopeChain = pc->m_scopeChain;
+ }
+ }
+
+ const QScriptInstruction *iPtr = context->instructionPointer();
+ context->execute(code);
+ context->setInstructionPointer(iPtr);
+ }
+
+ virtual void execute(QScriptContextPrivate *context)
+ {
+ QScriptEnginePrivate *eng = context->engine();
+ int lineNo = context->currentLine;
+ if (lineNo == -1) {
+ QScriptContextPrivate *pc = context->parentContext();
+ if (pc)
+ lineNo = pc->currentLine;
+ else
+ lineNo = 1;
+ }
+ QString fileName; // don't set this for now, we don't want to change the official eval() for now.
+
+ if (context->argumentCount() == 0) {
+ context->setReturnValue(eng->undefinedValue());
+ } else {
+ QScriptValueImpl arg = context->argument(0);
+ if (arg.isString()) {
+ QString contents = arg.toString();
+ evaluate(context, contents, lineNo, fileName, /*calledFromScript=*/true);
+ } else {
+ context->setReturnValue(arg);
+ }
+ }
+ }
+
+ QString functionName() const
+ {
+ return QLatin1String("eval");
+ }
+};
+
+class ArgumentsClassData: public QScriptClassData
+{
+
+public:
+
+ static inline QScript::ArgumentsObjectData *get(const QScriptValueImpl &object)
+ { return static_cast<QScript::ArgumentsObjectData*>(object.objectData()); }
+
+ virtual bool resolve(const QScriptValueImpl &object, QScriptNameIdImpl *nameId,
+ QScript::Member *member, QScriptValueImpl *base,
+ QScript::AccessMode access);
+ virtual bool get(const QScriptValueImpl &object, const QScript::Member &member,
+ QScriptValueImpl *out_value);
+ virtual bool put(QScriptValueImpl *object, const QScript::Member &member,
+ const QScriptValueImpl &value);
+ virtual void mark(const QScriptValueImpl &object, int generation);
+ virtual QScriptClassDataIterator *newIterator(const QScriptValueImpl &object);
+};
+
+class ArgumentsClassDataIterator: public QScriptClassDataIterator
+{
+public:
+ ArgumentsClassDataIterator(ArgumentsObjectData *data);
+ virtual ~ArgumentsClassDataIterator();
+
+ virtual bool hasNext() const;
+ virtual void next(QScript::Member *member);
+
+ virtual bool hasPrevious() const;
+ virtual void previous(QScript::Member *member);
+
+ virtual void toFront();
+ virtual void toBack();
+
+private:
+ ArgumentsObjectData *m_data;
+ uint m_pos;
+};
+
+bool ArgumentsClassData::resolve(const QScriptValueImpl &object, QScriptNameIdImpl *nameId,
+ QScript::Member *member, QScriptValueImpl *base,
+ QScript::AccessMode /*access*/)
+{
+ QString propertyName = object.engine()->toString(nameId);
+ bool isNumber;
+ quint32 index = propertyName.toUInt(&isNumber);
+ if (isNumber) {
+ QScript::ArgumentsObjectData *data = ArgumentsClassData::get(object);
+ if (index < data->length) {
+ member->native(/*nameId=*/0, index, QScriptValue::SkipInEnumeration);
+ *base = object;
+ return true;
+ }
+ }
+
+ return false;
+}
+
+bool ArgumentsClassData::get(const QScriptValueImpl &object, const QScript::Member &member,
+ QScriptValueImpl *out_value)
+{
+ QScript::ArgumentsObjectData *data = ArgumentsClassData::get(object);
+ if (member.nameId() == 0) {
+ QScriptObject *activation_data = data->activation.objectValue();
+ *out_value = activation_data->m_values[member.id()];
+ return true;
+ }
+ return false;
+}
+
+bool ArgumentsClassData::put(QScriptValueImpl *object, const QScript::Member &member,
+ const QScriptValueImpl &value)
+{
+ Q_ASSERT(member.nameId() == 0);
+ QScript::ArgumentsObjectData *data = ArgumentsClassData::get(*object);
+ QScriptObject *activation_data = data->activation.objectValue();
+ activation_data->m_values[member.id()] = value;
+ return true;
+}
+
+void ArgumentsClassData::mark(const QScriptValueImpl &object, int generation)
+{
+ QScript::ArgumentsObjectData *data = ArgumentsClassData::get(object);
+ data->activation.mark(generation);
+}
+
+QScriptClassDataIterator *ArgumentsClassData::newIterator(const QScriptValueImpl &object)
+{
+ QScript::ArgumentsObjectData *data = ArgumentsClassData::get(object);
+ return new ArgumentsClassDataIterator(data);
+}
+
+ArgumentsClassDataIterator::ArgumentsClassDataIterator(ArgumentsObjectData *data)
+ : m_data(data), m_pos(0)
+{
+}
+
+ArgumentsClassDataIterator::~ArgumentsClassDataIterator()
+{
+}
+
+bool ArgumentsClassDataIterator::hasNext() const
+{
+ return m_pos < m_data->length;
+}
+
+void ArgumentsClassDataIterator::next(QScript::Member *member)
+{
+ if (m_pos == m_data->length) {
+ member->invalidate();
+ } else {
+ member->native(/*nameId=*/0, m_pos, QScriptValue::SkipInEnumeration);
+ ++m_pos;
+ }
+}
+
+bool ArgumentsClassDataIterator::hasPrevious() const
+{
+ return (m_pos != 0);
+}
+
+void ArgumentsClassDataIterator::previous(QScript::Member *member)
+{
+ if (m_pos == 0) {
+ member->invalidate();
+ } else {
+ --m_pos;
+ member->native(/*nameId=*/0, m_pos, QScriptValue::SkipInEnumeration);
+ }
+}
+
+void ArgumentsClassDataIterator::toFront()
+{
+ m_pos = 0;
+}
+
+void ArgumentsClassDataIterator::toBack()
+{
+ m_pos = m_data->length;
+}
+
+} // namespace QScript
+
+const qsreal QScriptEnginePrivate::D16 = 65536.0;
+const qsreal QScriptEnginePrivate::D32 = 4294967296.0;
+
+QScriptEnginePrivate::~QScriptEnginePrivate()
+{
+ while (!m_agents.isEmpty())
+ delete m_agents.takeFirst();
+
+ // invalidate values that we have references to
+ {
+ QHash<QScriptObject*, QScriptValuePrivate*>::const_iterator it;
+ for (it = m_objectHandles.constBegin(); it != m_objectHandles.constEnd(); ++it)
+ (*it)->invalidate();
+ }
+ {
+ QHash<QScriptNameIdImpl*, QScriptValuePrivate*>::const_iterator it;
+ for (it = m_stringHandles.constBegin(); it != m_stringHandles.constEnd(); ++it)
+ (*it)->invalidate();
+ }
+ {
+ QVector<QScriptValuePrivate*>::const_iterator it;
+ for (it = m_otherHandles.constBegin(); it != m_otherHandles.constEnd(); ++it)
+ (*it)->invalidate();
+ }
+
+ // invalidate interned strings that are known to the outside world
+ {
+ QHash<QScriptNameIdImpl*, QScriptStringPrivate*>::const_iterator it;
+ for (it = m_internedStrings.constBegin(); it != m_internedStrings.constEnd(); ++it)
+ it.value()->nameId = 0;
+ }
+
+ delete[] m_string_hash_base;
+ qDeleteAll(m_stringRepository);
+ qDeleteAll(m_tempStringRepository);
+
+ if (tempStackBegin)
+ delete[] tempStackBegin;
+
+#ifndef QT_NO_QOBJECT
+ deletePendingQObjects();
+ qDeleteAll(m_qobjectData);
+# ifndef Q_SCRIPT_NO_QMETAOBJECT_CACHE
+ qDeleteAll(m_cachedMetaObjects);
+# endif
+#endif
+
+ qDeleteAll(m_allocated_classes);
+}
+
+QScript::AST::Node *QScriptEnginePrivate::changeAbstractSyntaxTree(QScript::AST::Node *prg)
+{
+ QScript::AST::Node *was = m_abstractSyntaxTree;
+ m_abstractSyntaxTree = prg;
+ return was;
+}
+
+QScript::AST::Node *QScriptEnginePrivate::createAbstractSyntaxTree(
+ const QString &source, int lineNumber, QString *errorMessage, int *errorLineNumber)
+{
+ QScript::Lexer lex(this);
+ setLexer(&lex);
+ lex.setCode(source, lineNumber);
+
+ QScriptParser parser;
+
+ if (! parser.parse(this)) {
+ if (errorMessage)
+ *errorMessage = parser.errorMessage();
+ if (errorLineNumber)
+ *errorLineNumber = parser.errorLineNumber();
+ return 0;
+ }
+
+ return abstractSyntaxTree();
+}
+
+void QScriptEnginePrivate::markObject(const QScriptValueImpl &object, int generation)
+{
+ QScriptObject *instance = object.objectValue();
+ QScript::GCBlock *block = QScript::GCBlock::get(instance);
+
+ enum { MAX_GC_DEPTH = 32 };
+
+ if (block->generation + 1 != generation)
+ return;
+
+ if (m_gc_depth >= MAX_GC_DEPTH) {
+ // do the marking later
+ m_markStack.append(object);
+ return;
+ }
+
+ ++block->generation;
+ ++m_gc_depth;
+
+ if (QScriptClassData *data = object.classInfo()->data())
+ data->mark(object, generation);
+
+ if (instance->m_prototype.isObject())
+ markObject(instance->m_prototype, generation);
+
+ if (instance->m_scope.isObject())
+ markObject(instance->m_scope, generation);
+
+ const QScriptValueImpl &internalValue = instance->m_internalValue;
+
+ if (internalValue.isValid()) {
+ if (internalValue.isObject())
+ markObject(internalValue, generation);
+
+ else if (internalValue.isString())
+ markString(internalValue.m_string_value, generation);
+ }
+
+ int garbage = 0;
+
+ for (int i = 0; i < instance->memberCount(); ++i) {
+ QScript::Member m;
+ instance->member(i, &m);
+
+ if (! m.isValid()) {
+ ++garbage;
+ continue;
+ }
+
+ Q_ASSERT(m.isObjectProperty());
+
+ QScriptValueImpl child;
+ instance->get(m, &child);
+
+ if (m.nameId())
+ markString(m.nameId(), generation);
+
+ if (! child.isValid())
+ continue;
+
+ else if (child.isObject())
+ markObject(child, generation);
+
+ else if (child.isString())
+ markString(child.m_string_value, generation);
+ }
+
+ --m_gc_depth;
+
+ if (garbage < 128) // ###
+ return;
+
+ int j = 0;
+ for (int i = 0; i < instance->memberCount(); ++i) {
+ QScript::Member m;
+ instance->member(i, &m);
+
+ if (! m.isValid())
+ continue;
+
+ if (i != j) {
+ instance->m_members[j].object(m.nameId(), j, m.flags());
+ instance->m_values[j] = instance->m_values[i];
+ }
+ ++j;
+ }
+ //qDebug() << "==> old:" << instance->m_members.size() << "new:" << j;
+ instance->m_members.resize(j);
+ instance->m_values.resize(j);
+}
+
+void QScriptEnginePrivate::markFrame(QScriptContextPrivate *context, int generation)
+{
+ QScriptValueImpl activation = context->activationObject();
+ QScriptValueImpl thisObject = context->thisObject();
+ QScriptValueImpl scopeChain = context->m_scopeChain;
+ QScriptValueImpl callee = context->m_callee;
+ QScriptValueImpl arguments = context->m_arguments;
+
+ if (activation.isObject())
+ markObject(activation, generation);
+
+ if (scopeChain.isObject())
+ markObject(scopeChain, generation);
+
+ if (thisObject.isObject())
+ markObject(thisObject, generation);
+
+ if (callee.isObject())
+ markObject(callee, generation);
+
+ if (arguments.isObject())
+ markObject(arguments, generation);
+
+ if (context->returnValue().isValid()) {
+ if (context->returnValue().isObject())
+ markObject(context->returnValue(), generation);
+
+ else if (context->returnValue().isString())
+ markString(context->returnValue().m_string_value, generation);
+ }
+
+ if (context->baseStackPointer() != context->currentStackPointer()) {
+ // mark the temp stack
+
+ for (const QScriptValueImpl *it = context->baseStackPointer(); it != (context->currentStackPointer() + 1); ++it) {
+ if (! it) {
+ qWarning() << "no temp stack!!!";
+ break;
+ }
+
+ else if (! it->isValid()) // ### assert?
+ continue;
+
+ else if (it->isObject())
+ markObject(*it, generation);
+
+ else if (it->isString())
+ markString(it->m_string_value, generation);
+ }
+ }
+}
+
+bool QScriptEnginePrivate::isCollecting() const
+{
+ return (m_gc_depth != -1) || objectAllocator.sweeping();
+}
+
+void QScriptEnginePrivate::maybeGC_helper(bool do_string_gc)
+{
+ // qDebug() << "==>" << objectAllocator.newAllocatedBlocks() << "free:" << objectAllocator.freeBlocks();
+ Q_ASSERT(m_gc_depth == -1);
+ ++m_gc_depth;
+
+ int generation = m_objectGeneration + 1;
+
+ markObject(m_globalObject, generation);
+
+ objectConstructor->mark(this, generation);
+ numberConstructor->mark(this, generation);
+ booleanConstructor->mark(this, generation);
+ stringConstructor->mark(this, generation);
+ dateConstructor->mark(this, generation);
+ functionConstructor->mark(this, generation);
+ arrayConstructor->mark(this, generation);
+ regexpConstructor->mark(this, generation);
+ errorConstructor->mark(this, generation);
+ enumerationConstructor->mark(this, generation);
+ variantConstructor->mark(this, generation);
+#ifndef QT_NO_QOBJECT
+ qobjectConstructor->mark(this, generation);
+ qmetaObjectConstructor->mark(this, generation);
+#endif
+
+ {
+ QScriptContextPrivate *current = currentContext();
+ while (current != 0) {
+ markFrame (current, generation);
+ current = current->parentContext();
+ }
+ }
+
+ {
+ QHash<QScriptObject*, QScriptValuePrivate*>::const_iterator it;
+ for (it = m_objectHandles.constBegin(); it != m_objectHandles.constEnd(); ++it)
+ markObject((*it)->value, generation);
+ }
+
+ {
+ QHash<QScriptNameIdImpl*, QScriptValuePrivate*>::const_iterator it;
+ for (it = m_stringHandles.constBegin(); it != m_stringHandles.constEnd(); ++it)
+ markString((*it)->value.stringValue(), generation);
+ }
+
+ {
+ QHash<int, QScriptCustomTypeInfo>::const_iterator it;
+ for (it = m_customTypes.constBegin(); it != m_customTypes.constEnd(); ++it)
+ (*it).prototype.mark(generation);
+ }
+
+#ifndef QT_NO_QOBJECT
+# ifndef Q_SCRIPT_NO_QMETAOBJECT_CACHE
+ {
+ QHash<const QMetaObject*, QScriptMetaObject*>::const_iterator it;
+ for (it = m_cachedMetaObjects.constBegin(); it != m_cachedMetaObjects.constEnd(); ++it) {
+ {
+ QList<QScriptNameIdImpl*> memberNames = (*it)->registeredMemberNames();
+ QList<QScriptNameIdImpl*>::const_iterator it2;
+ for (it2 = memberNames.constBegin(); it2 != memberNames.constEnd(); ++it2)
+ markString(*it2, generation);
+ }
+ {
+ QList<QScriptValueImpl> propertyAccessors = (*it)->registeredPropertyAccessors();
+ QList<QScriptValueImpl>::const_iterator it2;
+ for (it2 = propertyAccessors.constBegin(); it2 != propertyAccessors.constEnd(); ++it2)
+ markObject(*it2, generation);
+ }
+ }
+ }
+# endif
+ processMarkStack(generation); // make sure everything is marked before marking qobject data
+ {
+ QHash<QObject*, QScriptQObjectData*>::const_iterator it;
+ for (it = m_qobjectData.constBegin(); it != m_qobjectData.constEnd(); ++it) {
+ QScriptQObjectData *qdata = it.value();
+ qdata->mark(generation);
+ }
+ }
+#endif
+ processMarkStack(generation);
+
+ Q_ASSERT(m_gc_depth == 0);
+ --m_gc_depth;
+
+ objectAllocator.sweep(generation);
+
+ m_objectGeneration = generation;
+
+ //qDebug() << "free blocks:" << objectAllocator.freeBlocks();
+
+#ifndef QT_NO_QOBJECT
+ deletePendingQObjects();
+#endif
+
+ if (! do_string_gc)
+ return;
+
+ {
+ QHash<QScriptNameIdImpl*, QScriptStringPrivate*>::const_iterator it;
+ for (it = m_internedStrings.constBegin(); it != m_internedStrings.constEnd(); ++it) {
+ it.value()->nameId->used = true;
+ }
+ }
+
+#if 0
+ qDebug() << "do_string_gc:" << do_string_gc
+ << ((m_stringRepository.size() - m_oldStringRepositorySize) > 256)
+ << ((m_tempStringRepository.size() - m_oldTempStringRepositorySize) > 2048);
+#endif
+
+ QVector<QScriptNameIdImpl*> compressed;
+ compressed.reserve(m_stringRepository.size());
+
+ for (int i = 0; i < m_stringRepository.size(); ++i) {
+ QScriptNameIdImpl *entry = m_stringRepository.at(i);
+
+ if (entry->used || entry->persistent) {
+ compressed.append(entry);
+ entry->used = false;
+ }
+
+ else {
+ //qDebug() << "deleted unique:" << entry->s;
+ delete entry;
+ }
+ }
+
+ // qDebug() << "before:" << m_stringRepository.size() << "after:" << compressed.size() << globalObject.objectValue()->m_members.size();
+ m_stringRepository = compressed;
+ rehashStringRepository(/*resize=*/ false);
+ m_oldStringRepositorySize = m_stringRepository.size();
+ m_newAllocatedStringRepositoryChars = 0;
+
+ compressed.clear();
+ for (int i = 0; i < m_tempStringRepository.size(); ++i) {
+ QScriptNameIdImpl *entry = m_tempStringRepository.at(i);
+
+ if (entry->used || entry->persistent) {
+ compressed.append(entry);
+ entry->used = false;
+ }
+
+ else {
+ //qDebug() << "deleted:" << entry->s;
+ delete entry;
+ }
+ }
+
+ //qDebug() << "before:" << m_tempStringRepository.size() << "after:" << compressed.size();
+
+ m_tempStringRepository = compressed;
+ m_oldTempStringRepositorySize = m_tempStringRepository.size();
+ m_newAllocatedTempStringRepositoryChars = 0;
+}
+
+void QScriptEnginePrivate::processMarkStack(int generation)
+{
+ // mark the objects we couldn't process due to recursion depth
+ while (!m_markStack.isEmpty())
+ markObject(m_markStack.takeLast(), generation);
+}
+
+void QScriptEnginePrivate::evaluate(QScriptContextPrivate *context, const QString &contents, int lineNumber, const QString &fileName)
+{
+ // ### try to remove cast
+ QScript::EvalFunction *evalFunction = static_cast<QScript::EvalFunction*>(m_evalFunction);
+ evalFunction->evaluate(context, contents, lineNumber, fileName, /*calledFromScript=*/ false);
+}
+
+qsreal QScriptEnginePrivate::convertToNativeDouble_helper(const QScriptValueImpl &value)
+{
+ switch (value.type()) {
+ case QScript::InvalidType:
+ Q_ASSERT(value.isValid());
+ break;
+
+ case QScript::UndefinedType:
+ case QScript::PointerType:
+ break;
+
+ case QScript::NullType:
+ return 0;
+
+ case QScript::BooleanType:
+ return value.m_bool_value;
+
+ case QScript::IntegerType:
+ case QScript::ReferenceType:
+ return value.m_int_value;
+
+ case QScript::NumberType:
+ return value.m_number_value;
+
+ case QScript::StringType:
+ return QScript::numberFromString(toString(value.m_string_value));
+
+ case QScript::ObjectType: {
+ QScriptValueImpl p = value.engine()->toPrimitive(value, QScriptValueImpl::NumberTypeHint);
+ if (! p.isValid() || p.isObject())
+ break;
+
+ return convertToNativeDouble(p);
+ }
+
+ case QScript::LazyStringType:
+ return QScript::numberFromString(*value.m_lazy_string_value);
+
+ } // switch
+
+ return qSNaN();
+}
+
+bool QScriptEnginePrivate::convertToNativeBoolean_helper(const QScriptValueImpl &value)
+{
+ switch (value.type()) {
+ case QScript::InvalidType:
+ Q_ASSERT(value.isValid());
+ return false;
+
+ case QScript::UndefinedType:
+ case QScript::PointerType:
+ case QScript::NullType:
+ case QScript::ReferenceType:
+ return false;
+
+ case QScript::BooleanType:
+ return value.m_bool_value;
+
+ case QScript::IntegerType:
+ return value.m_int_value != 0;
+
+ case QScript::NumberType:
+ return value.m_number_value != 0 && !qIsNaN(value.m_number_value);
+
+ case QScript::StringType:
+ return toString(value.m_string_value).length() != 0;
+
+ case QScript::ObjectType:
+ return true;
+
+ case QScript::LazyStringType:
+ return value.m_lazy_string_value->length() != 0;
+
+ } // switch
+
+ return false;
+}
+
+QString QScriptEnginePrivate::convertToNativeString_helper(const QScriptValueImpl &value)
+{
+ static QStringList predefined;
+ if (predefined.isEmpty()) {
+ predefined.append(QString::fromLatin1("undefined"));
+ predefined.append(QString::fromLatin1("null"));
+ predefined.append(QString::fromLatin1("true"));
+ predefined.append(QString::fromLatin1("false"));
+ predefined.append(QString::fromLatin1("pointer"));
+ }
+
+ switch (value.type()) {
+ case QScript::InvalidType:
+ Q_ASSERT(value.isValid());
+ return QString();
+
+ case QScript::UndefinedType:
+ return predefined.at(0);
+
+ case QScript::NullType:
+ return predefined.at(1);
+
+ case QScript::BooleanType:
+ return value.m_bool_value ? predefined.at(2) : predefined.at(3);
+
+ case QScript::IntegerType:
+ return QString::number(value.m_int_value);
+
+ case QScript::NumberType:
+ return QScript::numberToString(value.m_number_value);
+
+ case QScript::PointerType:
+ return predefined.at(4);
+
+ case QScript::StringType:
+ return toString(value.m_string_value);
+
+ case QScript::ReferenceType:
+ return QString();
+
+ case QScript::ObjectType: {
+ QScriptValueImpl p = value.engine()->toPrimitive(value, QScriptValueImpl::StringTypeHint);
+
+ if (!p.isValid() || strictlyEquals(p, value))
+ return p.classInfo()->name();
+
+ return convertToNativeString(p);
+ }
+
+ case QScript::LazyStringType:
+ return *value.m_lazy_string_value;
+
+ } // switch
+
+ return QString();
+}
+
+QScriptValueImpl QScriptEnginePrivate::toObject_helper(const QScriptValueImpl &value)
+{
+ QScriptValueImpl result;
+ switch (value.type()) {
+ case QScript::BooleanType:
+ booleanConstructor->newBoolean(&result, value.m_bool_value);
+ break;
+
+ case QScript::NumberType:
+ numberConstructor->newNumber(&result, value.m_number_value);
+ break;
+
+ case QScript::StringType:
+ stringConstructor->newString(&result, value.m_string_value->s);
+ break;
+
+ case QScript::LazyStringType:
+ stringConstructor->newString(&result, *value.m_lazy_string_value);
+ break;
+
+ case QScript::InvalidType:
+ case QScript::UndefinedType:
+ case QScript::NullType:
+ case QScript::IntegerType:
+ case QScript::ReferenceType:
+ case QScript::PointerType:
+ case QScript::ObjectType:
+ break;
+ } // switch
+
+ return result;
+}
+
+// [[defaultValue]]
+QScriptValueImpl QScriptEnginePrivate::toPrimitive_helper(const QScriptValueImpl &object,
+ QScriptValueImpl::TypeHint hint)
+{
+ QScriptNameIdImpl *functionIds[2];
+
+ if ((hint == QScriptValueImpl::NumberTypeHint)
+ || (hint == QScriptValueImpl::NoTypeHint
+ && object.classInfo() != dateConstructor->classInfo())) {
+ functionIds[0] = idTable()->id_valueOf;
+ functionIds[1] = idTable()->id_toString;
+ } else {
+ functionIds[0] = idTable()->id_toString;
+ functionIds[1] = idTable()->id_valueOf;
+ }
+
+ for (int i = 0; i < 2; ++i) {
+ QScriptValueImpl base;
+ QScript::Member member;
+
+ if (! object.resolve(functionIds[i], &member, &base, QScriptValue::ResolvePrototype, QScript::Read))
+ return object;
+
+ QScriptValueImpl f_valueOf;
+ base.get(member, &f_valueOf);
+
+ if (QScriptFunction *foo = convertToNativeFunction(f_valueOf)) {
+ QScriptContextPrivate *me = pushContext();
+ QScriptValueImpl activation;
+ newActivation(&activation);
+ if (f_valueOf.scope().isValid())
+ activation.setScope(f_valueOf.scope());
+ else
+ activation.setScope(m_globalObject);
+ me->setActivationObject(activation);
+ me->setThisObject(object);
+ me->m_callee = f_valueOf;
+ foo->execute(me);
+ QScriptValueImpl result = me->returnValue();
+ bool exception = (me->state() == QScriptContext::ExceptionState);
+ popContext();
+ if (exception || (result.isValid() && !result.isObject()))
+ return result;
+ }
+ }
+
+ return object;
+}
+
+void QScriptEnginePrivate::rehashStringRepository(bool resize)
+{
+ if (resize) {
+ delete[] m_string_hash_base;
+ m_string_hash_size <<= 1; // ### use primes
+
+ m_string_hash_base = new QScriptNameIdImpl* [m_string_hash_size];
+ }
+
+ memset(m_string_hash_base, 0, sizeof(QScriptNameIdImpl*) * m_string_hash_size);
+
+ for (int index = 0; index < m_stringRepository.size(); ++index) {
+ QScriptNameIdImpl *entry = m_stringRepository.at(index);
+ uint h = _q_scriptHash(entry->s) % m_string_hash_size;
+ entry->h = h;
+ entry->next = m_string_hash_base[h];
+ m_string_hash_base[h] = entry;
+ }
+}
+
+QScriptNameIdImpl *QScriptEnginePrivate::insertStringEntry(const QString &s)
+{
+ QScriptNameIdImpl *entry = new QScriptNameIdImpl(s);
+ entry->unique = true;
+ m_stringRepository.append(entry);
+ m_newAllocatedStringRepositoryChars += s.length();
+
+ uint h = _q_scriptHash(s) % m_string_hash_size;
+ entry->h = h;
+ entry->next = m_string_hash_base[h];
+ m_string_hash_base[h] = entry;
+
+ if (m_stringRepository.count() == m_string_hash_size)
+ rehashStringRepository();
+
+ return entry;
+}
+
+QScriptValueImpl QScriptEnginePrivate::call(const QScriptValueImpl &callee,
+ const QScriptValueImpl &thisObject,
+ const QScriptValueImplList &args,
+ bool asConstructor)
+{
+ QScriptFunction *function = callee.toFunction();
+ Q_ASSERT(function);
+
+ if (++m_callDepth == m_maxCallDepth) {
+ QScriptContextPrivate *ctx_p = currentContext();
+ return ctx_p->throwError(QLatin1String("call stack overflow"));
+ }
+
+ QScriptContextPrivate *nested = pushContext();
+ // set up the temp stack
+ if (! nested->tempStack)
+ nested->stackPtr = nested->tempStack = tempStackBegin;
+
+ newActivation(&nested->m_activation);
+ if (callee.m_object_value->m_scope.isValid())
+ nested->m_activation.m_object_value->m_scope = callee.m_object_value->m_scope;
+ else
+ nested->m_activation.m_object_value->m_scope = m_globalObject;
+
+ QScriptObject *activation_data = nested->m_activation.m_object_value;
+
+ int formalCount = function->formals.count();
+ int argc = args.count();
+ int mx = qMax(formalCount, argc);
+ activation_data->m_members.resize(mx);
+ activation_data->m_values.resize(mx);
+ for (int i = 0; i < mx; ++i) {
+ QScriptNameIdImpl *nameId = 0;
+ if (i < formalCount)
+ nameId = function->formals.at(i);
+
+ activation_data->m_members[i].object(nameId, i, QScriptValue::SkipInEnumeration);
+ QScriptValueImpl arg = (i < argc) ? args.at(i) : m_undefinedValue;
+ if (arg.isValid() && arg.engine() && (arg.engine() != this)) {
+ qWarning("QScriptValue::call() failed: "
+ "cannot call function with argument created in "
+ "a different engine");
+ popContext();
+ return QScriptValueImpl();
+ }
+ activation_data->m_values[i] = arg.isValid() ? arg : m_undefinedValue;
+ }
+
+ nested->argc = argc;
+ QVector<QScriptValueImpl> argsv = args.toVector();
+ nested->args = const_cast<QScriptValueImpl*> (argsv.constData());
+
+ if (thisObject.isObject())
+ nested->m_thisObject = thisObject;
+ else
+ nested->m_thisObject = m_globalObject;
+ nested->m_callee = callee;
+ nested->m_calledAsConstructor = asConstructor;
+
+ nested->m_result = m_undefinedValue;
+ function->execute(nested);
+ --m_callDepth;
+ QScriptValueImpl result = nested->m_result;
+ nested->args = 0;
+ popContext();
+
+ return result;
+}
+
+QScriptValueImpl QScriptEnginePrivate::call(const QScriptValueImpl &callee,
+ const QScriptValueImpl &thisObject,
+ const QScriptValueImpl &args,
+ bool asConstructor)
+{
+ QScriptValueImplList argsList;
+ if (QScript::Ecma::Array::Instance *arr = arrayConstructor->get(args)) {
+ QScript::Array actuals = arr->value;
+ for (quint32 i = 0; i < actuals.count(); ++i) {
+ QScriptValueImpl a = actuals.at(i);
+ if (! a.isValid())
+ argsList << undefinedValue();
+ else
+ argsList << a;
+ }
+ } else if (args.classInfo() == m_class_arguments) {
+ QScript::ArgumentsObjectData *arguments;
+ arguments = static_cast<QScript::ArgumentsObjectData*> (args.objectData());
+ QScriptObject *activation = arguments->activation.objectValue();
+ for (uint i = 0; i < arguments->length; ++i)
+ argsList << activation->m_values[i];
+ } else if (!(args.isUndefined() || args.isNull())) {
+ return currentContext()->throwError(
+ QScriptContext::TypeError,
+ QLatin1String("QScriptValue::call(): arguments must be an array"));
+ }
+ return call(callee, thisObject, argsList, asConstructor);
+}
+
+QScriptValueImpl QScriptEnginePrivate::arrayFromStringList(const QStringList &lst)
+{
+ QScriptValueImpl arr = newArray(lst.size());
+ for (int i = 0; i < lst.size(); ++i)
+ arr.setProperty(i, QScriptValueImpl(this, lst.at(i)));
+ return arr;
+}
+
+QStringList QScriptEnginePrivate::stringListFromArray(const QScriptValueImpl &arr)
+{
+ QStringList lst;
+ uint len = arr.property(QLatin1String("length")).toUInt32();
+ for (uint i = 0; i < len; ++i)
+ lst.append(arr.property(i).toString());
+ return lst;
+}
+
+QScriptValueImpl QScriptEnginePrivate::arrayFromVariantList(const QVariantList &lst)
+{
+ QScriptValueImpl arr = newArray(lst.size());
+ for (int i = 0; i < lst.size(); ++i)
+ arr.setProperty(i, valueFromVariant(lst.at(i)));
+ return arr;
+}
+
+QVariantList QScriptEnginePrivate::variantListFromArray(const QScriptValueImpl &arr)
+{
+ QVariantList lst;
+ uint len = arr.property(QLatin1String("length")).toUInt32();
+ for (uint i = 0; i < len; ++i)
+ lst.append(arr.property(i).toVariant());
+ return lst;
+}
+
+QScriptValueImpl QScriptEnginePrivate::objectFromVariantMap(const QVariantMap &vmap)
+{
+ QScriptValueImpl obj = newObject();
+ QVariantMap::const_iterator it;
+ for (it = vmap.constBegin(); it != vmap.constEnd(); ++it)
+ obj.setProperty(it.key(), valueFromVariant(it.value()));
+ return obj;
+}
+
+QVariantMap QScriptEnginePrivate::variantMapFromObject(const QScriptValueImpl &obj)
+{
+ QVariantMap vmap;
+ QScriptValueIteratorImpl it(obj);
+ while (it.hasNext()) {
+ it.next();
+ vmap.insert(it.name(), it.value().toVariant());
+ }
+ return vmap;
+}
+
+QScriptValueImpl QScriptEnginePrivate::create(int type, const void *ptr)
+{
+ Q_Q(QScriptEngine);
+ Q_ASSERT(ptr);
+ QScriptValueImpl result;
+ QScriptCustomTypeInfo info = m_customTypes.value(type);
+ if (info.marshal) {
+ result = toImpl(info.marshal(q, ptr));
+ } else {
+ // check if it's one of the types we know
+ switch (QMetaType::Type(type)) {
+ case QMetaType::Void:
+ result = m_undefinedValue;
+ break;
+ case QMetaType::Bool:
+ result = QScriptValueImpl(*reinterpret_cast<const bool*>(ptr));
+ break;
+ case QMetaType::Int:
+ result = QScriptValueImpl(*reinterpret_cast<const int*>(ptr));
+ break;
+ case QMetaType::UInt:
+ result = QScriptValueImpl(*reinterpret_cast<const uint*>(ptr));
+ break;
+ case QMetaType::LongLong:
+ result = QScriptValueImpl(qsreal(*reinterpret_cast<const qlonglong*>(ptr)));
+ break;
+ case QMetaType::ULongLong:
+#if defined(Q_OS_WIN) && defined(_MSC_FULL_VER) && _MSC_FULL_VER <= 12008804
+#pragma message("** NOTE: You need the Visual Studio Processor Pack to compile support for 64bit unsigned integers.")
+ result = QScriptValueImpl(qsreal((qlonglong)*reinterpret_cast<const qulonglong*>(ptr)));
+#elif defined(Q_CC_MSVC) && !defined(Q_CC_MSVC_NET)
+ result = QScriptValueImpl(qsreal((qlonglong)*reinterpret_cast<const qulonglong*>(ptr)));
+#else
+ result = QScriptValueImpl(qsreal(*reinterpret_cast<const qulonglong*>(ptr)));
+#endif
+ break;
+ case QMetaType::Double:
+ result = QScriptValueImpl(*reinterpret_cast<const double*>(ptr));
+ break;
+ case QMetaType::QString:
+ result = QScriptValueImpl(this, *reinterpret_cast<const QString*>(ptr));
+ break;
+ case QMetaType::Float:
+ result = QScriptValueImpl(*reinterpret_cast<const float*>(ptr));
+ break;
+ case QMetaType::Short:
+ result = QScriptValueImpl(*reinterpret_cast<const short*>(ptr));
+ break;
+ case QMetaType::UShort:
+ result = QScriptValueImpl(*reinterpret_cast<const unsigned short*>(ptr));
+ break;
+ case QMetaType::Char:
+ result = QScriptValueImpl(*reinterpret_cast<const char*>(ptr));
+ break;
+ case QMetaType::UChar:
+ result = QScriptValueImpl(*reinterpret_cast<const unsigned char*>(ptr));
+ break;
+ case QMetaType::QChar:
+ result = QScriptValueImpl((*reinterpret_cast<const QChar*>(ptr)).unicode());
+ break;
+ case QMetaType::QStringList:
+ result = arrayFromStringList(*reinterpret_cast<const QStringList *>(ptr));
+ break;
+ case QMetaType::QVariantList:
+ result = arrayFromVariantList(*reinterpret_cast<const QVariantList *>(ptr));
+ break;
+ case QMetaType::QVariantMap:
+ result = objectFromVariantMap(*reinterpret_cast<const QVariantMap *>(ptr));
+ break;
+ case QMetaType::QDateTime: {
+ QDateTime dateTime = *reinterpret_cast<const QDateTime *>(ptr);
+ dateConstructor->newDate(&result, dateTime);
+ } break;
+ case QMetaType::QDate: {
+ QDate date = *reinterpret_cast<const QDate *>(ptr);
+ dateConstructor->newDate(&result, date);
+ } break;
+#ifndef QT_NO_REGEXP
+ case QMetaType::QRegExp: {
+ QRegExp rx = *reinterpret_cast<const QRegExp *>(ptr);
+ regexpConstructor->newRegExp(&result, rx);
+ } break;
+#endif
+#ifndef QT_NO_QOBJECT
+ case QMetaType::QObjectStar:
+ case QMetaType::QWidgetStar:
+ newQObject(&result, *reinterpret_cast<QObject* const *>(ptr));
+ break;
+#endif
+ default:
+ if (type == qMetaTypeId<QScriptValue>()) {
+ result = toImpl(*reinterpret_cast<const QScriptValue*>(ptr));
+ if (!result.isValid())
+ result = m_undefinedValue;
+ }
+
+#ifndef QT_NO_QOBJECT
+ // lazy registration of some common list types
+ else if (type == qMetaTypeId<QObjectList>()) {
+ qScriptRegisterSequenceMetaType<QObjectList>(q);
+ return create(type, ptr);
+ }
+#endif
+ else if (type == qMetaTypeId<QList<int> >()) {
+ qScriptRegisterSequenceMetaType<QList<int> >(q);
+ return create(type, ptr);
+ }
+
+ else {
+ QByteArray typeName = QMetaType::typeName(type);
+ if (typeName == "QVariant")
+ result = valueFromVariant(*reinterpret_cast<const QVariant*>(ptr));
+ else if (typeName.endsWith('*') && !*reinterpret_cast<void* const *>(ptr))
+ result = nullValue();
+ else
+ newVariant(&result, QVariant(type, ptr));
+ }
+ }
+ }
+ if (result.isObject() && info.prototype.isValid()
+ && strictlyEquals(result.prototype(), objectConstructor->publicPrototype)) {
+ result.setPrototype(info.prototype);
+ }
+ return result;
+}
+
+bool QScriptEnginePrivate::convert(const QScriptValueImpl &value,
+ int type, void *ptr,
+ QScriptEnginePrivate *eng)
+{
+ if (!eng)
+ eng = value.engine();
+ if (eng) {
+ QScriptCustomTypeInfo info = eng->m_customTypes.value(type);
+ if (info.demarshal) {
+ info.demarshal(eng->toPublic(value), ptr);
+ return true;
+ }
+ }
+
+ // check if it's one of the types we know
+ switch (QMetaType::Type(type)) {
+ case QMetaType::Bool:
+ *reinterpret_cast<bool*>(ptr) = value.toBoolean();
+ return true;
+ case QMetaType::Int:
+ *reinterpret_cast<int*>(ptr) = value.toInt32();
+ return true;
+ case QMetaType::UInt:
+ *reinterpret_cast<uint*>(ptr) = value.toUInt32();
+ return true;
+ case QMetaType::LongLong:
+ *reinterpret_cast<qlonglong*>(ptr) = qlonglong(value.toInteger());
+ return true;
+ case QMetaType::ULongLong:
+ *reinterpret_cast<qulonglong*>(ptr) = qulonglong(value.toInteger());
+ return true;
+ case QMetaType::Double:
+ *reinterpret_cast<double*>(ptr) = value.toNumber();
+ return true;
+ case QMetaType::QString:
+ if (value.isUndefined() || value.isNull())
+ *reinterpret_cast<QString*>(ptr) = QString();
+ else
+ *reinterpret_cast<QString*>(ptr) = value.toString();
+ return true;
+ case QMetaType::Float:
+ *reinterpret_cast<float*>(ptr) = value.toNumber();
+ return true;
+ case QMetaType::Short:
+ *reinterpret_cast<short*>(ptr) = short(value.toInt32());
+ return true;
+ case QMetaType::UShort:
+ *reinterpret_cast<unsigned short*>(ptr) = value.toUInt16();
+ return true;
+ case QMetaType::Char:
+ *reinterpret_cast<char*>(ptr) = char(value.toInt32());
+ return true;
+ case QMetaType::UChar:
+ *reinterpret_cast<unsigned char*>(ptr) = (unsigned char)(value.toInt32());
+ return true;
+ case QMetaType::QChar:
+ if (value.isString()) {
+ QString str = value.toString();
+ *reinterpret_cast<QChar*>(ptr) = str.isEmpty() ? QChar() : str.at(0);
+ } else {
+ *reinterpret_cast<QChar*>(ptr) = QChar(value.toUInt16());
+ }
+ return true;
+ case QMetaType::QDateTime:
+ if (value.isDate()) {
+ *reinterpret_cast<QDateTime *>(ptr) = value.toDateTime();
+ return true;
+ } break;
+ case QMetaType::QDate:
+ if (value.isDate()) {
+ *reinterpret_cast<QDate *>(ptr) = value.toDateTime().date();
+ return true;
+ } break;
+#ifndef QT_NO_REGEXP
+ case QMetaType::QRegExp:
+ if (value.isRegExp()) {
+ *reinterpret_cast<QRegExp *>(ptr) = value.toRegExp();
+ return true;
+ } break;
+#endif
+#ifndef QT_NO_QOBJECT
+ case QMetaType::QObjectStar:
+ if (value.isQObject() || value.isNull()) {
+ *reinterpret_cast<QObject* *>(ptr) = value.toQObject();
+ return true;
+ } break;
+ case QMetaType::QWidgetStar:
+ if (value.isQObject() || value.isNull()) {
+ QObject *qo = value.toQObject();
+ if (!qo || qo->isWidgetType()) {
+ *reinterpret_cast<QWidget* *>(ptr) = reinterpret_cast<QWidget*>(qo);
+ return true;
+ }
+ } break;
+#endif
+ case QMetaType::QStringList:
+ if (value.isArray()) {
+ *reinterpret_cast<QStringList *>(ptr) = stringListFromArray(value);
+ return true;
+ } break;
+ case QMetaType::QVariantList:
+ if (value.isArray()) {
+ *reinterpret_cast<QVariantList *>(ptr) = variantListFromArray(value);
+ return true;
+ } break;
+ case QMetaType::QVariantMap:
+ if (value.isObject()) {
+ *reinterpret_cast<QVariantMap *>(ptr) = variantMapFromObject(value);
+ return true;
+ } break;
+ default:
+ ;
+ }
+
+ QByteArray name = QMetaType::typeName(type);
+#ifndef QT_NO_QOBJECT
+ if (convertToNativeQObject(value, name, reinterpret_cast<void* *>(ptr)))
+ return true;
+#endif
+ if (value.isVariant() && name.endsWith('*')) {
+ int valueType = QMetaType::type(name.left(name.size()-1));
+ QVariant &var = value.variantValue();
+ if (valueType == var.userType()) {
+ *reinterpret_cast<void* *>(ptr) = var.data();
+ return true;
+ } else {
+ // look in the prototype chain
+ QScriptValueImpl proto = value.prototype();
+ while (proto.isObject()) {
+ bool canCast = false;
+ if (proto.isVariant()) {
+ canCast = (type == proto.variantValue().userType())
+ || (valueType && (valueType == proto.variantValue().userType()));
+ }
+#ifndef QT_NO_QOBJECT
+ else if (proto.isQObject()) {
+ QByteArray className = name.left(name.size()-1);
+ if (QObject *qobject = proto.toQObject())
+ canCast = qobject->qt_metacast(className) != 0;
+ }
+#endif
+ if (canCast) {
+ QByteArray varTypeName = QMetaType::typeName(var.userType());
+ if (varTypeName.endsWith('*'))
+ *reinterpret_cast<void* *>(ptr) = *reinterpret_cast<void* *>(var.data());
+ else
+ *reinterpret_cast<void* *>(ptr) = var.data();
+ return true;
+ }
+ proto = proto.prototype();
+ }
+ }
+ } else if (value.isNull() && name.endsWith('*')) {
+ *reinterpret_cast<void* *>(ptr) = 0;
+ return true;
+ } else if (type == qMetaTypeId<QScriptValue>()) {
+ if (!eng)
+ return false;
+ *reinterpret_cast<QScriptValue*>(ptr) = eng->toPublic(value);
+ return true;
+ } else if (name == "QVariant") {
+ *reinterpret_cast<QVariant*>(ptr) = value.toVariant();
+ return true;
+ }
+
+ // lazy registration of some common list types
+#ifndef QT_NO_QOBJECT
+ else if (type == qMetaTypeId<QObjectList>()) {
+ if (!eng)
+ return false;
+ qScriptRegisterSequenceMetaType<QObjectList>(eng->q_func());
+ return convert(value, type, ptr, eng);
+ }
+#endif
+ else if (type == qMetaTypeId<QList<int> >()) {
+ if (!eng)
+ return false;
+ qScriptRegisterSequenceMetaType<QList<int> >(eng->q_func());
+ return convert(value, type, ptr, eng);
+ }
+
+#if 0
+ if (!name.isEmpty()) {
+ qWarning("QScriptEngine::convert: unable to convert value to type `%s'",
+ name.constData());
+ }
+#endif
+ return false;
+}
+
+QScriptValuePrivate *QScriptEnginePrivate::registerValue(const QScriptValueImpl &value)
+{
+ if (value.isString()) {
+ QScriptNameIdImpl *id = value.stringValue();
+ QScriptValuePrivate *p = m_stringHandles.value(id);
+ if (p)
+ return p;
+ p = m_handleRepository.get();
+ p->engine = q_func();
+ p->value = value;
+ m_stringHandles.insert(id, p);
+ return p;
+ } else if (value.isObject()) {
+ QScriptObject *instance = value.objectValue();
+ QScriptValuePrivate *p = m_objectHandles.value(instance);
+ if (p)
+ return p;
+ p = m_handleRepository.get();
+ p->engine = q_func();
+ p->value = value;
+ m_objectHandles.insert(instance, p);
+ return p;
+ }
+ QScriptValuePrivate *p = m_handleRepository.get();
+ p->engine = q_func();
+ p->value = value;
+ m_otherHandles.append(p);
+ return p;
+}
+
+QScriptEnginePrivate::QScriptEnginePrivate()
+{
+ m_undefinedValue = QScriptValueImpl(QScriptValue::UndefinedValue);
+ m_nullValue = QScriptValueImpl(QScriptValue::NullValue);
+
+ m_evaluating = false;
+ m_abort = false;
+ m_callDepth = 0;
+#if defined(Q_OS_WIN)
+ m_maxCallDepth = 88;
+#elif defined(Q_OS_MAC)
+ m_maxCallDepth = 640;
+#elif defined(QT_ARCH_ARM) || defined(QT_ARCH_ARMV6)
+ m_maxCallDepth = 360;
+#else
+ m_maxCallDepth = 512;
+#endif
+ m_oldStringRepositorySize = 0;
+ m_oldTempStringRepositorySize = 0;
+ m_newAllocatedStringRepositoryChars = 0;
+ m_newAllocatedTempStringRepositoryChars = 0;
+ m_context = 0;
+ m_abstractSyntaxTree = 0;
+ m_lexer = 0;
+ m_scriptCounter = 0;
+ m_agent = 0;
+ m_objectGeneration = 0;
+ m_class_prev_id = QScriptClassInfo::CustomType;
+ m_next_object_id = 0;
+ m_gc_depth = -1;
+
+ objectConstructor = 0;
+ numberConstructor = 0;
+ booleanConstructor = 0;
+ stringConstructor = 0;
+ dateConstructor = 0;
+ functionConstructor = 0;
+ arrayConstructor = 0;
+ regexpConstructor = 0;
+ errorConstructor = 0;
+ enumerationConstructor = 0;
+ variantConstructor = 0;
+ qobjectConstructor = 0;
+ qmetaObjectConstructor = 0;
+
+ m_processEventsInterval = -1;
+ m_nextProcessEvents = 0;
+ m_processEventIncr = 0;
+
+ m_stringRepository.reserve(DefaultHashSize);
+ m_string_hash_size = DefaultHashSize;
+ m_string_hash_base = new QScriptNameIdImpl* [m_string_hash_size];
+ memset(m_string_hash_base, 0, sizeof(QScriptNameIdImpl*) * m_string_hash_size);
+
+ tempStackBegin = 0;
+}
+
+void QScriptEnginePrivate::init()
+{
+ qMetaTypeId<QScriptValue>();
+ qMetaTypeId<QList<int> >();
+#ifndef QT_NO_QOBJECT
+ qMetaTypeId<QObjectList>();
+#endif
+
+ m_class_prev_id = QScriptClassInfo::CustomType;
+ m_class_object = registerClass(QLatin1String("Object"), QScriptClassInfo::ObjectType);
+ m_class_function = registerClass(QLatin1String("Function"), QScriptClassInfo::FunctionType);
+ m_class_activation = registerClass(QLatin1String("activation"), QScriptClassInfo::ActivationType);
+
+ m_class_arguments = registerClass(QLatin1String("arguments"), QScript::ObjectType);
+ m_class_arguments->setData(new QScript::ArgumentsClassData());
+
+ m_class_with = registerClass(QLatin1String("__qscript_internal_with"), QScript::ObjectType);
+
+ // public name ids
+ m_id_table.id_constructor = nameId(QLatin1String("constructor"), true);
+ m_id_table.id_false = nameId(QLatin1String("false"), true);
+ m_id_table.id_null = nameId(QLatin1String("null"), true);
+ m_id_table.id_object = nameId(QLatin1String("object"), true);
+ m_id_table.id_pointer = nameId(QLatin1String("pointer"), true);
+ m_id_table.id_prototype = nameId(QLatin1String("prototype"), true);
+ m_id_table.id_arguments = nameId(QLatin1String("arguments"), true);
+ m_id_table.id_this = nameId(QLatin1String("this"), true);
+ m_id_table.id_toString = nameId(QLatin1String("toString"), true);
+ m_id_table.id_true = nameId(QLatin1String("true"), true);
+ m_id_table.id_undefined = nameId(QLatin1String("undefined"), true);
+ m_id_table.id_valueOf = nameId(QLatin1String("valueOf"), true);
+ m_id_table.id_length = nameId(QLatin1String("length"), true);
+ m_id_table.id_callee = nameId(QLatin1String("callee"), true);
+ m_id_table.id___proto__ = nameId(QLatin1String("__proto__"), true);
+ m_id_table.id___qt_sender__ = nameId(QLatin1String("__qt_sender__"), true);
+
+ const int TEMP_STACK_SIZE = 10 * 1024;
+ tempStackBegin = new QScriptValueImpl[TEMP_STACK_SIZE];
+ tempStackEnd = tempStackBegin + TEMP_STACK_SIZE;
+ tempStackBegin[0] = m_undefinedValue;
+
+ objectAllocator.blockGC(true);
+
+ QScript::Ecma::Global::construct(&m_globalObject, this);
+
+ // create the prototypes first...
+ objectConstructor = new QScript::Ecma::Object(this, m_class_object);
+ functionConstructor = new QScript::Ecma::Function(this, m_class_function);
+ // ... then we can initialize
+ functionConstructor->initialize();
+ objectConstructor->initialize();
+
+ numberConstructor = new QScript::Ecma::Number(this);
+ booleanConstructor = new QScript::Ecma::Boolean(this);
+ stringConstructor = new QScript::Ecma::String(this);
+ dateConstructor = new QScript::Ecma::Date(this);
+ arrayConstructor = new QScript::Ecma::Array(this);
+ regexpConstructor = new QScript::Ecma::RegExp(this);
+ errorConstructor = new QScript::Ecma::Error(this);
+
+ QScript::Ecma::Global::initialize(&m_globalObject, this);
+
+ const QScriptValue::PropertyFlags flags = QScriptValue::SkipInEnumeration;
+
+ m_globalObject.setProperty(QLatin1String("Object"),
+ objectConstructor->ctor, flags);
+ m_globalObject.setProperty(QLatin1String("Function"),
+ functionConstructor->ctor, flags);
+ m_globalObject.setProperty(QLatin1String("Number"),
+ numberConstructor->ctor, flags);
+ m_globalObject.setProperty(QLatin1String("Boolean"),
+ booleanConstructor->ctor, flags);
+ m_globalObject.setProperty(QLatin1String("String"),
+ stringConstructor->ctor, flags);
+ m_globalObject.setProperty(QLatin1String("Date"),
+ dateConstructor->ctor, flags);
+ m_globalObject.setProperty(QLatin1String("Array"),
+ arrayConstructor->ctor, flags);
+ m_globalObject.setProperty(QLatin1String("RegExp"),
+ regexpConstructor->ctor, flags);
+ m_globalObject.setProperty(QLatin1String("Error"),
+ errorConstructor->ctor, flags);
+
+ m_globalObject.setProperty(QLatin1String("EvalError"),
+ errorConstructor->evalErrorCtor, flags);
+ m_globalObject.setProperty(QLatin1String("RangeError"),
+ errorConstructor->rangeErrorCtor, flags);
+ m_globalObject.setProperty(QLatin1String("ReferenceError"),
+ errorConstructor->referenceErrorCtor, flags);
+ m_globalObject.setProperty(QLatin1String("SyntaxError"),
+ errorConstructor->syntaxErrorCtor, flags);
+ m_globalObject.setProperty(QLatin1String("TypeError"),
+ errorConstructor->typeErrorCtor, flags);
+ m_globalObject.setProperty(QLatin1String("URIError"),
+ errorConstructor->uriErrorCtor, flags);
+
+ QScriptValueImpl tmp; // ### fixme
+ m_evalFunction = new QScript::EvalFunction(this);
+ functionConstructor->newFunction(&tmp, m_evalFunction);
+ m_globalObject.setProperty(QLatin1String("eval"), tmp, flags);
+
+ QScriptValueImpl mathObject;
+ QScript::Ecma::Math::construct(&mathObject, this);
+ m_globalObject.setProperty(QLatin1String("Math"), mathObject, flags);
+
+ enumerationConstructor = new QScript::Ext::Enumeration(this);
+
+ variantConstructor = new QScript::Ext::Variant(this);
+
+#ifndef QT_NO_QOBJECT
+ qobjectConstructor = new QScript::ExtQObject(this);
+ qmetaObjectConstructor = new QScript::ExtQMetaObject(this);
+#endif
+
+ objectAllocator.blockGC(false);
+
+ QScriptContextPrivate *context_p = pushContext();
+ context_p->setActivationObject(m_globalObject);
+ context_p->setThisObject(m_globalObject);
+}
+
+#if !defined(QT_NO_QOBJECT) && !defined(QT_NO_LIBRARY)
+static QScriptValueImpl __setupPackage__(QScriptContextPrivate *ctx,
+ QScriptEnginePrivate *eng,
+ QScriptClassInfo *)
+{
+ QString path = ctx->argument(0).toString();
+ QStringList components = path.split(QLatin1Char('.'));
+ QScriptValueImpl o = eng->globalObject();
+ for (int i = 0; i < components.count(); ++i) {
+ QString name = components.at(i);
+ QScriptValueImpl oo = o.property(name);
+ if (!oo.isValid()) {
+ oo = eng->newObject();
+ o.setProperty(name, oo);
+ }
+ o = oo;
+ }
+ return o;
+}
+#endif
+
+QScriptValueImpl QScriptEnginePrivate::importExtension(const QString &extension)
+{
+#if defined(QT_NO_QOBJECT) || defined(QT_NO_LIBRARY) || defined(QT_NO_SETTINGS)
+ Q_UNUSED(extension);
+#else
+ Q_Q(QScriptEngine);
+ if (m_importedExtensions.contains(extension))
+ return undefinedValue(); // already imported
+
+ QScriptContextPrivate *context = currentContext();
+ QCoreApplication *app = QCoreApplication::instance();
+ if (!app)
+ return context->throwError(QLatin1String("No application object"));
+
+ QObjectList staticPlugins = QPluginLoader::staticInstances();
+ QStringList libraryPaths = app->libraryPaths();
+ QString dot = QLatin1String(".");
+ QStringList pathComponents = extension.split(dot);
+ QString initDotJs = QLatin1String("__init__.js");
+
+ QString ext;
+ for (int i = 0; i < pathComponents.count(); ++i) {
+ if (!ext.isEmpty())
+ ext.append(dot);
+ ext.append(pathComponents.at(i));
+ if (m_importedExtensions.contains(ext))
+ continue; // already imported
+
+ if (m_extensionsBeingImported.contains(ext)) {
+ return context->throwError(QString::fromLatin1("recursive import of %0")
+ .arg(extension));
+ }
+ m_extensionsBeingImported.insert(ext);
+
+ QScriptExtensionInterface *iface = 0;
+ QString initjsContents;
+ QString initjsFileName;
+
+ // look for the extension in static plugins
+ for (int j = 0; j < staticPlugins.size(); ++j) {
+ iface = qobject_cast<QScriptExtensionInterface*>(staticPlugins.at(j));
+ if (!iface)
+ continue;
+ if (iface->keys().contains(ext))
+ break; // use this one
+ else
+ iface = 0; // keep looking
+ }
+
+ {
+ // look for __init__.js resource
+ QString path = QString::fromLatin1(":/qtscriptextension");
+ for (int j = 0; j <= i; ++j) {
+ path.append(QLatin1Char('/'));
+ path.append(pathComponents.at(j));
+ }
+ path.append(QLatin1Char('/'));
+ path.append(initDotJs);
+ QFile file(path);
+ if (file.open(QIODevice::ReadOnly)) {
+ QTextStream ts(&file);
+ initjsContents = ts.readAll();
+ initjsFileName = path;
+ file.close();
+ }
+ }
+
+ if (!iface && initjsContents.isEmpty()) {
+ // look for the extension in library paths
+ for (int j = 0; j < libraryPaths.count(); ++j) {
+ QString libPath = libraryPaths.at(j) + QDir::separator() + QLatin1String("script");
+ QDir dir(libPath);
+ if (!dir.exists(dot))
+ continue;
+
+ // look for C++ plugin
+ QFileInfoList files = dir.entryInfoList(QDir::Files);
+ for (int k = 0; k < files.count(); ++k) {
+ QFileInfo entry = files.at(k);
+ QString filePath = entry.canonicalFilePath();
+ QPluginLoader loader(filePath);
+ iface = qobject_cast<QScriptExtensionInterface*>(loader.instance());
+ if (iface) {
+ if (iface->keys().contains(ext))
+ break; // use this one
+ else
+ iface = 0; // keep looking
+ }
+ }
+
+ // look for __init__.js in the corresponding dir
+ QDir dirdir(libPath);
+ bool dirExists = dirdir.exists();
+ for (int k = 0; dirExists && (k <= i); ++k)
+ dirExists = dirdir.cd(pathComponents.at(k));
+ if (dirExists && dirdir.exists(initDotJs)) {
+ QFile file(dirdir.canonicalPath()
+ + QDir::separator() + initDotJs);
+ if (file.open(QIODevice::ReadOnly)) {
+ QTextStream ts(&file);
+ initjsContents = ts.readAll();
+ initjsFileName = file.fileName();
+ file.close();
+ }
+ }
+
+ if (iface || !initjsContents.isEmpty())
+ break;
+ }
+ }
+
+ if (!iface && initjsContents.isEmpty()) {
+ m_extensionsBeingImported.remove(ext);
+ return context->throwError(
+ QString::fromLatin1("Unable to import %0: no such extension")
+ .arg(extension));
+ }
+
+ // initialize the extension in a new context
+ QScriptContextPrivate *ctx_p = pushContext();
+ ctx_p->setThisObject(globalObject());
+ newActivation(&ctx_p->m_activation);
+ QScriptObject *activation_data = ctx_p->m_activation.m_object_value;
+ activation_data->m_scope = globalObject();
+
+ activation_data->m_members.resize(4);
+ activation_data->m_values.resize(4);
+ activation_data->m_members[0].object(
+ nameId(QLatin1String("__extension__")), 0,
+ QScriptValue::ReadOnly | QScriptValue::Undeletable);
+ activation_data->m_values[0] = QScriptValueImpl(this, ext);
+ activation_data->m_members[1].object(
+ nameId(QLatin1String("__setupPackage__")), 1, 0);
+ activation_data->m_values[1] = createFunction(__setupPackage__, 0, 0);
+ activation_data->m_members[2].object(
+ nameId(QLatin1String("__all__")), 2, 0);
+ activation_data->m_values[2] = undefinedValue();
+ activation_data->m_members[3].object(
+ nameId(QLatin1String("__postInit__")), 3, 0);
+ activation_data->m_values[3] = undefinedValue();
+
+ // the script is evaluated first
+ if (!initjsContents.isEmpty()) {
+ evaluate(ctx_p, initjsContents, /*lineNumber=*/1, initjsFileName);
+ if (hasUncaughtException()) {
+ QScriptValueImpl r = ctx_p->returnValue();
+ popContext();
+ m_extensionsBeingImported.remove(ext);
+ return r;
+ }
+ }
+
+ // next, the C++ plugin is called
+ if (iface) {
+ iface->initialize(ext, q);
+ if (hasUncaughtException()) {
+ QScriptValueImpl r = ctx_p->returnValue();
+ popContext();
+ m_extensionsBeingImported.remove(ext);
+ return r;
+ }
+ }
+
+ // if the __postInit__ function has been set, we call it
+ QScriptValueImpl postInit = ctx_p->m_activation.property(QLatin1String("__postInit__"));
+ if (postInit.isFunction()) {
+ postInit.call(globalObject());
+ if (hasUncaughtException()) {
+ QScriptValueImpl r = ctx_p->returnValue();
+ popContext();
+ m_extensionsBeingImported.remove(ext);
+ return r;
+ }
+ }
+
+ popContext();
+
+ m_importedExtensions.insert(ext);
+ m_extensionsBeingImported.remove(ext);
+ } // for (i)
+#endif // QT_NO_QOBJECT
+ return undefinedValue();
+}
+
+QStringList QScriptEnginePrivate::availableExtensions() const
+{
+#if defined(QT_NO_QOBJECT) || defined(QT_NO_LIBRARY) || defined(QT_NO_SETTINGS)
+ return QStringList();
+#else
+ QCoreApplication *app = QCoreApplication::instance();
+ if (!app)
+ return QStringList();
+
+ QSet<QString> result;
+
+ QObjectList staticPlugins = QPluginLoader::staticInstances();
+ for (int i = 0; i < staticPlugins.size(); ++i) {
+ QScriptExtensionInterface *iface;
+ iface = qobject_cast<QScriptExtensionInterface*>(staticPlugins.at(i));
+ if (iface) {
+ QStringList keys = iface->keys();
+ for (int j = 0; j < keys.count(); ++j)
+ result << keys.at(j);
+ }
+ }
+
+ QStringList libraryPaths = app->libraryPaths();
+ for (int i = 0; i < libraryPaths.count(); ++i) {
+ QString libPath = libraryPaths.at(i) + QDir::separator() + QLatin1String("script");
+ QDir dir(libPath);
+ if (!dir.exists())
+ continue;
+
+ // look for C++ plugins
+ QFileInfoList files = dir.entryInfoList(QDir::Files);
+ for (int j = 0; j < files.count(); ++j) {
+ QFileInfo entry = files.at(j);
+ QString filePath = entry.canonicalFilePath();
+ QPluginLoader loader(filePath);
+ QScriptExtensionInterface *iface;
+ iface = qobject_cast<QScriptExtensionInterface*>(loader.instance());
+ if (iface) {
+ QStringList keys = iface->keys();
+ for (int k = 0; k < keys.count(); ++k)
+ result << keys.at(k);
+ }
+ }
+
+ // look for scripts
+ QString initDotJs = QLatin1String("__init__.js");
+ QList<QFileInfo> stack;
+ stack << dir.entryInfoList(QDir::Dirs | QDir::NoDotAndDotDot);
+ while (!stack.isEmpty()) {
+ QFileInfo entry = stack.takeLast();
+ QDir dd(entry.canonicalFilePath());
+ if (dd.exists(initDotJs)) {
+ QString rpath = dir.relativeFilePath(dd.canonicalPath());
+ QStringList components = rpath.split(QLatin1Char('/'));
+ result << components.join(QLatin1String("."));
+ stack << dd.entryInfoList(QDir::Dirs | QDir::NoDotAndDotDot);
+ }
+ }
+ }
+
+ QStringList lst = result.toList();
+ qSort(lst);
+ return lst;
+#endif
+}
+
+QStringList QScriptEnginePrivate::importedExtensions() const
+{
+ QStringList lst = m_importedExtensions.toList();
+ qSort(lst);
+ return lst;
+}
+
+void QScriptEnginePrivate::gc()
+{
+ if (!objectAllocator.blocked()) {
+ // do the GC now
+ maybeGC_helper(/*do_string_gc=*/true);
+ } else {
+ // GC will be performed the next time maybeGC()
+ // is called and the allocator is not blocked
+ objectAllocator.requestGC();
+ }
+}
+
+QStringList QScriptEnginePrivate::uncaughtExceptionBacktrace() const
+{
+ QScriptValueImpl value = uncaughtException();
+ if (!value.isError())
+ return m_exceptionBacktrace;
+ return QScript::Ecma::Error::backtrace(value);
+}
+
+void QScriptEnginePrivate::clearExceptions()
+{
+ m_exceptionBacktrace = QStringList();
+ QScriptContextPrivate *ctx_p = currentContext();
+ while (ctx_p) {
+ ctx_p->m_state = QScriptContext::NormalState;
+ ctx_p = ctx_p->parentContext();
+ }
+}
+
+#ifndef QT_NO_QOBJECT
+void QScriptEnginePrivate::emitSignalHandlerException()
+{
+ Q_Q(QScriptEngine);
+ emit q->signalHandlerException(toPublic(uncaughtException()));
+}
+#endif
+
+void QScriptEnginePrivate::processEvents()
+{
+#ifndef QT_NO_QOBJECT
+ Q_ASSERT(m_processEventTracker.isValid());
+ int elapsed = m_processEventTracker.elapsed();
+ if (m_nextProcessEvents < elapsed) {
+ do {
+ m_nextProcessEvents = m_nextProcessEvents + m_processEventsInterval;
+ } while (m_nextProcessEvents < elapsed);
+ QCoreApplication::processEvents();
+ }
+#endif
+}
+
+void QScriptEnginePrivate::setupProcessEvents()
+{
+ if (m_processEventsInterval > 0) {
+ m_nextProcessEvents = m_processEventsInterval;
+ m_processEventIncr = 0;
+ m_processEventTracker.restart();
+ }
+}
+
+void QScriptEnginePrivate::abortEvaluation(const QScriptValueImpl &result)
+{
+ m_abort = true;
+ currentContext()->setReturnValue(result);
+}
+
+#ifndef QT_NO_QOBJECT
+
+void QScriptEnginePrivate::newQObject(QScriptValueImpl *out, QObject *object,
+ QScriptEngine::ValueOwnership ownership,
+ const QScriptEngine::QObjectWrapOptions &options,
+ bool setDefaultPrototype)
+{
+ if (!object) {
+ *out = m_nullValue;
+ return;
+ }
+ Q_ASSERT(qobjectConstructor != 0);
+ QScriptQObjectData *data = qobjectData(object);
+ bool preferExisting = (options & QScriptEngine::PreferExistingWrapperObject) != 0;
+ QScriptEngine::QObjectWrapOptions opt = options & ~QScriptEngine::PreferExistingWrapperObject;
+ QScriptValueImpl existingWrapper;
+ bool hasExisting = data->findWrapper(ownership, opt, &existingWrapper);
+ if (preferExisting) {
+ if (hasExisting) {
+ *out = existingWrapper;
+ } else {
+ qobjectConstructor->newQObject(out, object, ownership, opt);
+ data->registerWrapper(*out, ownership, opt);
+ }
+ } else {
+ qobjectConstructor->newQObject(out, object, ownership, opt);
+ if (!hasExisting)
+ data->registerWrapper(*out, ownership, opt);
+ }
+
+ if (setDefaultPrototype) {
+ const QMetaObject *meta = object->metaObject();
+ while (meta) {
+ QByteArray typeString = meta->className();
+ typeString.append('*');
+ int typeId = QMetaType::type(typeString);
+ if (typeId != 0) {
+ QScriptValueImpl proto = defaultPrototype(typeId);
+ if (proto.isValid()) {
+ out->setPrototype(proto);
+ break;
+ }
+ }
+ meta = meta->superClass();
+ }
+ }
+}
+
+QScriptQObjectData *QScriptEnginePrivate::qobjectData(QObject *object)
+{
+ QHash<QObject*, QScriptQObjectData*>::const_iterator it;
+ it = m_qobjectData.constFind(object);
+ if (it != m_qobjectData.constEnd())
+ return it.value();
+
+ QScriptQObjectData *data = new QScriptQObjectData();
+ m_qobjectData.insert(object, data);
+ QObject::connect(object, SIGNAL(destroyed(QObject*)),
+ q_func(), SLOT(_q_objectDestroyed(QObject *)));
+ return data;
+}
+
+void QScriptEnginePrivate::_q_objectDestroyed(QObject *object)
+{
+ QHash<QObject*, QScriptQObjectData*>::iterator it;
+ it = m_qobjectData.find(object);
+ Q_ASSERT(it != m_qobjectData.end());
+ QScriptQObjectData *data = it.value();
+ m_qobjectData.erase(it);
+ delete data;
+}
+
+void QScriptEnginePrivate::disposeQObject(QObject *object)
+{
+ if (isCollecting()) {
+ // wait until we're done with GC before deleting it
+ int index = m_qobjectsToBeDeleted.indexOf(object);
+ if (index == -1)
+ m_qobjectsToBeDeleted.append(object);
+ } else {
+ delete object;
+ }
+}
+
+void QScriptEnginePrivate::deletePendingQObjects()
+{
+ while (!m_qobjectsToBeDeleted.isEmpty())
+ delete m_qobjectsToBeDeleted.takeFirst();
+}
+
+bool QScriptEnginePrivate::scriptConnect(QObject *sender, const char *signal,
+ const QScriptValueImpl &receiver,
+ const QScriptValueImpl &function)
+{
+ Q_ASSERT(sender);
+ Q_ASSERT(signal);
+ const QMetaObject *meta = sender->metaObject();
+ int index = meta->indexOfSignal(QMetaObject::normalizedSignature(signal+1));
+ if (index == -1)
+ return false;
+ return scriptConnect(sender, index, receiver, function);
+}
+
+bool QScriptEnginePrivate::scriptDisconnect(QObject *sender, const char *signal,
+ const QScriptValueImpl &receiver,
+ const QScriptValueImpl &function)
+{
+ Q_ASSERT(sender);
+ Q_ASSERT(signal);
+ const QMetaObject *meta = sender->metaObject();
+ int index = meta->indexOfSignal(QMetaObject::normalizedSignature(signal+1));
+ if (index == -1)
+ return false;
+ return scriptDisconnect(sender, index, receiver, function);
+}
+
+bool QScriptEnginePrivate::scriptConnect(QObject *sender, int signalIndex,
+ const QScriptValueImpl &receiver,
+ const QScriptValueImpl &function,
+ const QScriptValueImpl &senderWrapper)
+{
+ QScriptQObjectData *data = qobjectData(sender);
+ return data->addSignalHandler(sender, signalIndex, receiver, function, senderWrapper);
+}
+
+bool QScriptEnginePrivate::scriptDisconnect(QObject *sender, int signalIndex,
+ const QScriptValueImpl &receiver,
+ const QScriptValueImpl &function)
+{
+ QScriptQObjectData *data = qobjectData(sender);
+ if (!data)
+ return false;
+ return data->removeSignalHandler(sender, signalIndex, receiver, function);
+}
+
+bool QScriptEnginePrivate::scriptConnect(const QScriptValueImpl &signal,
+ const QScriptValueImpl &receiver,
+ const QScriptValueImpl &function)
+{
+ QScript::QtFunction *fun = static_cast<QScript::QtFunction*>(signal.toFunction());
+ int index = fun->mostGeneralMethod();
+ return scriptConnect(fun->qobject(), index, receiver, function, fun->object());
+}
+
+bool QScriptEnginePrivate::scriptDisconnect(const QScriptValueImpl &signal,
+ const QScriptValueImpl &receiver,
+ const QScriptValueImpl &function)
+{
+ QScript::QtFunction *fun = static_cast<QScript::QtFunction*>(signal.toFunction());
+ int index = fun->mostGeneralMethod();
+ return scriptDisconnect(fun->qobject(), index, receiver, function);
+}
+
+bool QScriptEnginePrivate::convertToNativeQObject(const QScriptValueImpl &value,
+ const QByteArray &targetType,
+ void **result)
+{
+ if (!targetType.endsWith('*'))
+ return false;
+ if (QObject *qobject = value.toQObject()) {
+ int start = targetType.startsWith("const ") ? 6 : 0;
+ QByteArray className = targetType.mid(start, targetType.size()-start-1);
+ if (void *instance = qobject->qt_metacast(className)) {
+ *result = instance;
+ return true;
+ }
+ }
+ return false;
+}
+
+#endif // QT_NO_QOBJECT
+
+void QScriptEnginePrivate::setAgent(QScriptEngineAgent *agent)
+{
+ Q_Q(QScriptEngine);
+ if (agent && (agent->engine() != q)) {
+ qWarning("QScriptEngine::setAgent(): "
+ "cannot set agent belonging to different engine");
+ return;
+ }
+ if (agent) {
+ int index = m_agents.indexOf(agent);
+ if (index == -1)
+ m_agents.append(agent);
+ }
+ m_agent = agent;
+}
+
+QScriptEngineAgent *QScriptEnginePrivate::agent() const
+{
+ return m_agent;
+}
+
+void QScriptEnginePrivate::agentDeleted(QScriptEngineAgent *agent)
+{
+ m_agents.removeOne(agent);
+ if (m_agent == agent)
+ m_agent = 0;
+}
+
+#ifndef Q_SCRIPT_NO_EVENT_NOTIFY
+qint64 QScriptEnginePrivate::nextScriptId()
+{
+ // ### reuse IDs by using a pool
+ return m_scriptCounter++;
+}
+
+void QScriptEnginePrivate::notifyScriptLoad_helper(qint64 id, const QString &program,
+ const QString &fileName, int lineNumber)
+{
+ m_agent->scriptLoad(id, program, fileName, lineNumber);
+}
+
+void QScriptEnginePrivate::notifyScriptUnload_helper(qint64 id)
+{
+ m_agent->scriptUnload(id);
+}
+
+void QScriptEnginePrivate::notifyPositionChange_helper(QScriptContextPrivate *ctx)
+{
+ m_agent->positionChange(ctx->scriptId(), ctx->currentLine, ctx->currentColumn);
+}
+
+void QScriptEnginePrivate::notifyContextPush_helper()
+{
+ m_agent->contextPush();
+}
+
+void QScriptEnginePrivate::notifyContextPop_helper()
+{
+ m_agent->contextPop();
+}
+
+void QScriptEnginePrivate::notifyFunctionEntry_helper(QScriptContextPrivate *ctx)
+{
+ m_agent->functionEntry(ctx->scriptId());
+}
+
+void QScriptEnginePrivate::notifyFunctionExit_helper(QScriptContextPrivate *ctx)
+{
+ m_agent->functionExit(ctx->scriptId(), toPublic(ctx->returnValue()));
+}
+
+void QScriptEnginePrivate::notifyException_helper(QScriptContextPrivate *ctx)
+{
+ bool hasHandler = (ctx->exceptionHandlerContext() != 0);
+ m_agent->exceptionThrow(ctx->scriptId(), toPublic(ctx->returnValue()), hasHandler);
+}
+
+void QScriptEnginePrivate::notifyExceptionCatch_helper(QScriptContextPrivate *ctx)
+{
+ m_agent->exceptionCatch(ctx->scriptId(), toPublic(ctx->returnValue()));
+}
+
+void QScriptEnginePrivate::notifyDebugger(QScriptContextPrivate *ctx)
+{
+ if (m_agent && m_agent->supportsExtension(QScriptEngineAgent::DebuggerInvocationRequest)) {
+ QVariantList args;
+ args.append(ctx->scriptId());
+ args.append(ctx->currentLine);
+ args.append(ctx->currentColumn);
+ QVariant ret = m_agent->extension(QScriptEngineAgent::DebuggerInvocationRequest, args);
+ QScriptValueImpl val = valueFromVariant(ret);
+ if (val.isValid())
+ ctx->m_result = val;
+ }
+}
+
+#endif // Q_SCRIPT_NO_EVENT_NOTIFY
+
+QScriptString QScriptEnginePrivate::internedString(const QString &str)
+{
+ return internedString(nameId(str, /*persistent=*/false));
+}
+
+QScriptString QScriptEnginePrivate::internedString(QScriptNameIdImpl *nid)
+{
+ if (!nid)
+ return QScriptString();
+ QScriptStringPrivate *d = m_internedStrings.value(nid);
+ if (!d) {
+ d = m_internedStringRepository.get();
+ d->nameId = nid;
+ d->engine = this;
+ m_internedStrings.insert(d->nameId, d);
+ }
+ QScriptString result;
+ QScriptStringPrivate::init(result, d);
+ return result;
+}
+
+void QScriptEnginePrivate::uninternString(QScriptStringPrivate *d)
+{
+ Q_ASSERT(d->nameId);
+ QHash<QScriptNameIdImpl*, QScriptStringPrivate*>::iterator it;
+ it = m_internedStrings.find(d->nameId);
+ Q_ASSERT(it != m_internedStrings.end());
+ m_internedStrings.erase(it);
+ m_internedStringRepository.release(d);
+}
+
+QScriptValueImpl QScriptEnginePrivate::toImpl_helper(const QScriptValue &value)
+{
+ QScriptValuePrivate *p = QScriptValuePrivate::get(value);
+ Q_ASSERT(p != 0);
+ Q_ASSERT(p->value.type() == QScript::LazyStringType);
+ QString str = *p->value.m_lazy_string_value;
+ if (!p->ref.deref())
+ delete p;
+ QScriptValueImpl v;
+ newString(&v, str);
+ p = registerValue(v);
+ QScriptValuePrivate::init(const_cast<QScriptValue&>(value), p);
+ return v;
+}
+
+QScriptValueImpl QScriptEnginePrivate::newObject(QScriptClass *scriptClass,
+ const QScriptValueImpl &data)
+{
+ if (!scriptClass)
+ return QScriptValueImpl();
+ QScriptValueImpl v;
+ QScriptValueImpl proto = toImpl(scriptClass->prototype());
+ if (!proto.isObject())
+ proto = objectConstructor->publicPrototype;
+ newObject(&v, proto);
+ QScriptClassPrivate *cls_p = QScriptClassPrivate::get(scriptClass);
+ QScriptClassInfo *info = cls_p->classInfo();
+ v.setClassInfo(info);
+ if (info->type() & QScriptClassInfo::FunctionBased) {
+ QScriptFunction *fun = cls_p->newFunction();
+ v.setObjectData(fun);
+ }
+ v.setInternalValue(data);
+ return v;
+}
+
+int QScriptEnginePrivate::registerCustomClassType()
+{
+ return ++m_class_prev_id;
+}
+
+QScriptValueImpl QScriptEnginePrivate::objectById(qint64 id) const
+{
+ QScript::GCAlloc<QScriptObject>::const_iterator it;
+ for (it = objectAllocator.constBegin(); it != objectAllocator.constEnd(); ++it) {
+ const QScriptObject *obj = it.data();
+ if (obj->m_id == id) {
+ QScriptValueImpl ret;
+ ret.m_type = QScript::ObjectType;
+ ret.m_object_value = const_cast<QScriptObject*>(obj);
+ return ret;
+ }
+ }
+ return QScriptValueImpl();
+}
+
+namespace QScript {
+
+static QScriptValueImpl qsTranslate(QScriptContextPrivate *ctx, QScriptEnginePrivate *eng, QScriptClassInfo *)
+{
+ if (ctx->argumentCount() < 2)
+ return ctx->throwError(QString::fromLatin1("qsTranslate() requires at least two arguments"));
+ if (!ctx->argument(0).isString())
+ return ctx->throwError(QString::fromLatin1("qsTranslate(): first argument (context) must be a string"));
+ if (!ctx->argument(1).isString())
+ return ctx->throwError(QString::fromLatin1("qsTranslate(): second argument (text) must be a string"));
+ if ((ctx->argumentCount() > 2) && !ctx->argument(2).isString())
+ return ctx->throwError(QString::fromLatin1("qsTranslate(): third argument (comment) must be a string"));
+ if ((ctx->argumentCount() > 3) && !ctx->argument(3).isString())
+ return ctx->throwError(QString::fromLatin1("qsTranslate(): fourth argument (encoding) must be a string"));
+ if ((ctx->argumentCount() > 4) && !ctx->argument(4).isNumber())
+ return ctx->throwError(QString::fromLatin1("qsTranslate(): fifth argument (n) must be a number"));
+#ifndef QT_NO_QOBJECT
+ QString context = ctx->argument(0).toString();
+#endif
+ QString text = ctx->argument(1).toString();
+#ifndef QT_NO_QOBJECT
+ QString comment;
+ if (ctx->argumentCount() > 2)
+ comment = ctx->argument(2).toString();
+ QCoreApplication::Encoding encoding = QCoreApplication::CodecForTr;
+ if (ctx->argumentCount() > 3) {
+ QString encStr = ctx->argument(3).toString();
+ if (encStr == QLatin1String("CodecForTr"))
+ encoding = QCoreApplication::CodecForTr;
+ else if (encStr == QLatin1String("UnicodeUTF8"))
+ encoding = QCoreApplication::UnicodeUTF8;
+ else
+ return ctx->throwError(QString::fromLatin1("qsTranslate(): invalid encoding '%s'").arg(encStr));
+ }
+ int n = -1;
+ if (ctx->argumentCount() > 4)
+ n = ctx->argument(4).toInt32();
+#endif
+ QString result;
+#ifndef QT_NO_QOBJECT
+ result = QCoreApplication::translate(context.toLatin1().constData(),
+ text.toLatin1().constData(),
+ comment.toLatin1().constData(),
+ encoding, n);
+#else
+ result = text;
+#endif
+ return QScriptValueImpl(eng, result);
+}
+
+static QScriptValueImpl qTranslateNoOp(QScriptContextPrivate *ctx, QScriptEnginePrivate *, QScriptClassInfo *)
+{
+ return ctx->argument(1);
+}
+
+static QScriptValueImpl qsTr(QScriptContextPrivate *ctx, QScriptEnginePrivate *eng, QScriptClassInfo *)
+{
+ if (ctx->argumentCount() < 1)
+ return ctx->throwError(QString::fromLatin1("qsTr() requires at least one argument"));
+ if (!ctx->argument(0).isString())
+ return ctx->throwError(QString::fromLatin1("qsTr(): first argument (text) must be a string"));
+ if ((ctx->argumentCount() > 1) && !ctx->argument(1).isString())
+ return ctx->throwError(QString::fromLatin1("qsTr(): second argument (comment) must be a string"));
+ if ((ctx->argumentCount() > 2) && !ctx->argument(2).isNumber())
+ return ctx->throwError(QString::fromLatin1("qsTranslate(): third argument (n) must be a number"));
+#ifndef QT_NO_QOBJECT
+ QString context;
+ if (ctx->parentContext())
+ context = QFileInfo(ctx->parentContext()->fileName()).baseName();
+#endif
+ QString text = ctx->argument(0).toString();
+#ifndef QT_NO_QOBJECT
+ QString comment;
+ if (ctx->argumentCount() > 1)
+ comment = ctx->argument(1).toString();
+ int n = -1;
+ if (ctx->argumentCount() > 2)
+ n = ctx->argument(2).toInt32();
+#endif
+ QString result;
+#ifndef QT_NO_QOBJECT
+ result = QCoreApplication::translate(context.toLatin1().constData(),
+ text.toLatin1().constData(),
+ comment.toLatin1().constData(),
+ QCoreApplication::CodecForTr, n);
+#else
+ result = text;
+#endif
+ return QScriptValueImpl(eng, result);
+}
+
+static QScriptValueImpl qTrNoOp(QScriptContextPrivate *ctx, QScriptEnginePrivate *, QScriptClassInfo *)
+{
+ return ctx->argument(0);
+}
+
+} // namespace QScript
+
+void QScriptEnginePrivate::installTranslatorFunctions(QScriptValueImpl &object)
+{
+ Q_ASSERT(object.isObject());
+ const QScriptValue::PropertyFlags flags = QScriptValue::SkipInEnumeration;
+ object.setProperty(QLatin1String("qsTranslate"),
+ createFunction(QScript::qsTranslate, /*length=*/5, /*classInfo=*/0),
+ flags);
+ object.setProperty(QLatin1String("QT_TRANSLATE_NOOP"),
+ createFunction(QScript::qTranslateNoOp, /*length=*/2, /*classInfo=*/0),
+ flags);
+ object.setProperty(QLatin1String("qsTr"),
+ createFunction(QScript::qsTr, /*length=*/3, /*classInfo=*/0),
+ flags);
+ object.setProperty(QLatin1String("QT_TR_NOOP"),
+ createFunction(QScript::qTrNoOp, /*length=*/1, /*classInfo=*/0),
+ flags);
+
+ stringConstructor->addPrototypeFunction(QLatin1String("arg"), QScript::Ecma::String::method_ext_arg, 1);
+}
+
+bool QScriptEnginePrivate::canEvaluate(const QString &program)
+{
+ QScript::SyntaxChecker checker;
+ QScript::SyntaxChecker::Result result = checker.checkSyntax(program);
+ return (result.state != QScript::SyntaxChecker::Intermediate);
+}
+
+QScriptSyntaxCheckResult QScriptEnginePrivate::checkSyntax(const QString &program)
+{
+ QScript::SyntaxChecker checker;
+ QScript::SyntaxChecker::Result result = checker.checkSyntax(program);
+ QScriptSyntaxCheckResultPrivate *p = new QScriptSyntaxCheckResultPrivate();
+ switch (result.state) {
+ case QScript::SyntaxChecker::Error:
+ p->state = QScriptSyntaxCheckResult::Error;
+ break;
+ case QScript::SyntaxChecker::Intermediate:
+ p->state = QScriptSyntaxCheckResult::Intermediate;
+ break;
+ case QScript::SyntaxChecker::Valid:
+ p->state = QScriptSyntaxCheckResult::Valid;
+ break;
+ }
+ p->errorLineNumber = result.errorLineNumber;
+ p->errorColumnNumber = result.errorColumnNumber;
+ p->errorMessage = result.errorMessage;
+ return QScriptSyntaxCheckResult(p);
+}
+
+QT_END_NAMESPACE
+
+#endif // QT_NO_SCRIPT
generated by cgit v0.12 at 2024-11-28 21:51:59 (GMT)