Files
qt-creator/src/libs/qmljs/qmljsinterpreter.h
Christian Kamm 82cbd0a974 QmlJS: Support .import directives in js files.
* Allow .import...
* Fix parsing of JS files when using Lexer::scanDirectives()
* Clean up ImportInfo construction.
* Rename ImportInfo::id to ImportInfo::as.

Change-Id: I888da248f06dc6184db99aa74c3b50d7f2f5e491
Reviewed-on: http://codereview.qt-project.org/5625
Reviewed-by: Roberto Raggi <roberto.raggi@nokia.com>
2011-09-28 08:52:56 +02:00

930 lines
27 KiB
C++

/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (info@qt.nokia.com)
**
**
** 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.
**
** 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.
**
** If you have questions regarding the use of this file, please contact
** Nokia at info@qt.nokia.com.
**
**************************************************************************/
#ifndef QMLJS_INTERPRETER_H
#define QMLJS_INTERPRETER_H
#include <languageutils/componentversion.h>
#include <languageutils/fakemetaobject.h>
#include <qmljs/qmljsdocument.h>
#include <qmljs/qmljs_global.h>
#include <qmljs/parser/qmljsastfwd_p.h>
#include <QtCore/QFileInfoList>
#include <QtCore/QList>
#include <QtCore/QString>
#include <QtCore/QHash>
#include <QtCore/QSet>
#include <QtCore/QMutex>
namespace QmlJS {
class NameId;
class Document;
////////////////////////////////////////////////////////////////////////////////
// Forward declarations
////////////////////////////////////////////////////////////////////////////////
class ValueOwner;
class Value;
class NullValue;
class UndefinedValue;
class NumberValue;
class IntValue;
class RealValue;
class BooleanValue;
class StringValue;
class UrlValue;
class ObjectValue;
class FunctionValue;
class Reference;
class ColorValue;
class AnchorLineValue;
class Imports;
class TypeScope;
class JSImportScope;
class Context;
typedef QSharedPointer<const Context> ContextPtr;
class ReferenceContext;
typedef QList<const Value *> ValueList;
////////////////////////////////////////////////////////////////////////////////
// Value visitor
////////////////////////////////////////////////////////////////////////////////
class QMLJS_EXPORT ValueVisitor
{
public:
ValueVisitor();
virtual ~ValueVisitor();
virtual void visit(const NullValue *);
virtual void visit(const UndefinedValue *);
virtual void visit(const NumberValue *);
virtual void visit(const BooleanValue *);
virtual void visit(const StringValue *);
virtual void visit(const ObjectValue *);
virtual void visit(const FunctionValue *);
virtual void visit(const Reference *);
virtual void visit(const ColorValue *);
virtual void visit(const AnchorLineValue *);
};
////////////////////////////////////////////////////////////////////////////////
// QML/JS value
////////////////////////////////////////////////////////////////////////////////
class QMLJS_EXPORT Value
{
Value(const Value &other);
void operator = (const Value &other);
public:
Value();
virtual ~Value();
virtual const NullValue *asNullValue() const;
virtual const UndefinedValue *asUndefinedValue() const;
virtual const NumberValue *asNumberValue() const;
virtual const IntValue *asIntValue() const;
virtual const RealValue *asRealValue() const;
virtual const BooleanValue *asBooleanValue() const;
virtual const StringValue *asStringValue() const;
virtual const UrlValue *asUrlValue() const;
virtual const ObjectValue *asObjectValue() const;
virtual const FunctionValue *asFunctionValue() const;
virtual const Reference *asReference() const;
virtual const ColorValue *asColorValue() const;
virtual const AnchorLineValue *asAnchorLineValue() const;
virtual void accept(ValueVisitor *) const = 0;
virtual bool getSourceLocation(QString *fileName, int *line, int *column) const;
};
template <typename _RetTy> _RetTy value_cast(const Value *v);
template <> Q_INLINE_TEMPLATE const NullValue *value_cast(const Value *v)
{
if (v) return v->asNullValue();
else return 0;
}
template <> Q_INLINE_TEMPLATE const UndefinedValue *value_cast(const Value *v)
{
if (v) return v->asUndefinedValue();
else return 0;
}
template <> Q_INLINE_TEMPLATE const NumberValue *value_cast(const Value *v)
{
if (v) return v->asNumberValue();
else return 0;
}
template <> Q_INLINE_TEMPLATE const IntValue *value_cast(const Value *v)
{
if (v) return v->asIntValue();
else return 0;
}
template <> Q_INLINE_TEMPLATE const RealValue *value_cast(const Value *v)
{
if (v) return v->asRealValue();
else return 0;
}
template <> Q_INLINE_TEMPLATE const BooleanValue *value_cast(const Value *v)
{
if (v) return v->asBooleanValue();
else return 0;
}
template <> Q_INLINE_TEMPLATE const StringValue *value_cast(const Value *v)
{
if (v) return v->asStringValue();
else return 0;
}
template <> Q_INLINE_TEMPLATE const UrlValue *value_cast(const Value *v)
{
if (v) return v->asUrlValue();
else return 0;
}
template <> Q_INLINE_TEMPLATE const ObjectValue *value_cast(const Value *v)
{
if (v) return v->asObjectValue();
else return 0;
}
template <> Q_INLINE_TEMPLATE const FunctionValue *value_cast(const Value *v)
{
if (v) return v->asFunctionValue();
else return 0;
}
template <> Q_INLINE_TEMPLATE const Reference *value_cast(const Value *v)
{
if (v) return v->asReference();
else return 0;
}
template <> Q_INLINE_TEMPLATE const ColorValue *value_cast(const Value *v)
{
if (v) return v->asColorValue();
else return 0;
}
template <> Q_INLINE_TEMPLATE const AnchorLineValue *value_cast(const Value *v)
{
if (v) return v->asAnchorLineValue();
else return 0;
}
////////////////////////////////////////////////////////////////////////////////
// Value nodes
////////////////////////////////////////////////////////////////////////////////
class QMLJS_EXPORT NullValue: public Value
{
public:
virtual const NullValue *asNullValue() const;
virtual void accept(ValueVisitor *visitor) const;
};
class QMLJS_EXPORT UndefinedValue: public Value
{
public:
virtual const UndefinedValue *asUndefinedValue() const;
virtual void accept(ValueVisitor *visitor) const;
};
class QMLJS_EXPORT NumberValue: public Value
{
public:
virtual const NumberValue *asNumberValue() const;
virtual void accept(ValueVisitor *visitor) const;
};
class QMLJS_EXPORT RealValue: public NumberValue
{
public:
virtual const RealValue *asRealValue() const;
};
class QMLJS_EXPORT IntValue: public NumberValue
{
public:
virtual const IntValue *asIntValue() const;
};
class QMLJS_EXPORT BooleanValue: public Value
{
public:
virtual const BooleanValue *asBooleanValue() const;
virtual void accept(ValueVisitor *visitor) const;
};
class QMLJS_EXPORT StringValue: public Value
{
public:
virtual const StringValue *asStringValue() const;
virtual void accept(ValueVisitor *visitor) const;
};
class QMLJS_EXPORT UrlValue: public StringValue
{
public:
virtual const UrlValue *asUrlValue() const;
};
class QMLJS_EXPORT MemberProcessor
{
MemberProcessor(const MemberProcessor &other);
void operator = (const MemberProcessor &other);
public:
MemberProcessor();
virtual ~MemberProcessor();
// Returns false to stop the processor.
virtual bool processProperty(const QString &name, const Value *value);
virtual bool processEnumerator(const QString &name, const Value *value);
virtual bool processSignal(const QString &name, const Value *value);
virtual bool processSlot(const QString &name, const Value *value);
virtual bool processGeneratedSlot(const QString &name, const Value *value);
};
class QMLJS_EXPORT Reference: public Value
{
public:
Reference(ValueOwner *valueOwner);
virtual ~Reference();
ValueOwner *valueOwner() const;
// Value interface
virtual const Reference *asReference() const;
virtual void accept(ValueVisitor *) const;
private:
virtual const Value *value(ReferenceContext *referenceContext) const;
ValueOwner *_valueOwner;
friend class ReferenceContext;
};
class QMLJS_EXPORT ColorValue: public Value
{
public:
// Value interface
virtual const ColorValue *asColorValue() const;
virtual void accept(ValueVisitor *) const;
};
class QMLJS_EXPORT AnchorLineValue: public Value
{
public:
// Value interface
virtual const AnchorLineValue *asAnchorLineValue() const;
virtual void accept(ValueVisitor *) const;
};
class QMLJS_EXPORT ObjectValue: public Value
{
public:
ObjectValue(ValueOwner *valueOwner);
virtual ~ObjectValue();
ValueOwner *valueOwner() const;
QString className() const;
void setClassName(const QString &className);
// may return a reference, prototypes may form a cycle: use PrototypeIterator!
const Value *prototype() const;
// prototypes may form a cycle: use PrototypeIterator!
const ObjectValue *prototype(const Context *context) const;
const ObjectValue *prototype(const ContextPtr &context) const
{ return prototype(context.data()); }
void setPrototype(const Value *prototype);
virtual void processMembers(MemberProcessor *processor) const;
virtual void setMember(const QString &name, const Value *value);
virtual void removeMember(const QString &name);
virtual const Value *lookupMember(const QString &name, const Context *context,
const ObjectValue **foundInObject = 0,
bool examinePrototypes = true) const;
const Value *lookupMember(const QString &name, const ContextPtr &context,
const ObjectValue **foundInObject = 0,
bool examinePrototypes = true) const
{ return lookupMember(name, context.data(), foundInObject, examinePrototypes); }
// Value interface
virtual const ObjectValue *asObjectValue() const;
virtual void accept(ValueVisitor *visitor) const;
private:
bool checkPrototype(const ObjectValue *prototype, QSet<const ObjectValue *> *processed) const;
private:
ValueOwner *_valueOwner;
QHash<QString, const Value *> _members;
QString _className;
protected:
const Value *_prototype;
};
class QMLJS_EXPORT PrototypeIterator
{
public:
enum Error
{
NoError,
ReferenceResolutionError,
CycleError
};
PrototypeIterator(const ObjectValue *start, const Context *context);
PrototypeIterator(const ObjectValue *start, const ContextPtr &context);
bool hasNext();
const ObjectValue *peekNext();
const ObjectValue *next();
Error error() const;
QList<const ObjectValue *> all();
private:
const ObjectValue *m_current;
const ObjectValue *m_next;
QList<const ObjectValue *> m_prototypes;
const Context *m_context;
Error m_error;
};
class QmlObjectValue;
class QMLJS_EXPORT QmlEnumValue: public NumberValue
{
public:
QmlEnumValue(const QmlObjectValue *owner, int index);
virtual ~QmlEnumValue();
QString name() const;
QStringList keys() const;
const QmlObjectValue *owner() const;
private:
const QmlObjectValue *_owner;
int _enumIndex;
};
// A ObjectValue based on a FakeMetaObject.
// May only have other QmlObjectValues as ancestors.
class QMLJS_EXPORT QmlObjectValue: public ObjectValue
{
public:
QmlObjectValue(LanguageUtils::FakeMetaObject::ConstPtr metaObject, const QString &className,
const QString &moduleName, const LanguageUtils::ComponentVersion &componentVersion,
const LanguageUtils::ComponentVersion &importVersion, int metaObjectRevision,
ValueOwner *valueOwner);
virtual ~QmlObjectValue();
virtual void processMembers(MemberProcessor *processor) const;
const Value *propertyValue(const LanguageUtils::FakeMetaProperty &prop) const;
using ObjectValue::prototype;
const QmlObjectValue *prototype() const;
const QmlObjectValue *attachedType() const;
void setAttachedType(QmlObjectValue *value);
LanguageUtils::FakeMetaObject::ConstPtr metaObject() const;
QString moduleName() const;
LanguageUtils::ComponentVersion componentVersion() const;
LanguageUtils::ComponentVersion importVersion() const;
QString defaultPropertyName() const;
QString propertyType(const QString &propertyName) const;
bool isListProperty(const QString &name) const;
bool isWritable(const QString &propertyName) const;
bool isPointer(const QString &propertyName) const;
bool hasLocalProperty(const QString &typeName) const;
bool hasProperty(const QString &typeName) const;
LanguageUtils::FakeMetaEnum getEnum(const QString &typeName, const QmlObjectValue **foundInScope = 0) const;
const QmlEnumValue *getEnumValue(const QString &typeName, const QmlObjectValue **foundInScope = 0) const;
protected:
bool isDerivedFrom(LanguageUtils::FakeMetaObject::ConstPtr base) const;
private:
QmlObjectValue *_attachedType;
LanguageUtils::FakeMetaObject::ConstPtr _metaObject;
const QString _moduleName;
// _componentVersion is the version of the export
// _importVersion is the version it's imported as, used to find correct prototypes
// needed in cases when B 1.0 has A 1.1 as prototype when imported as 1.1
const LanguageUtils::ComponentVersion _componentVersion;
const LanguageUtils::ComponentVersion _importVersion;
mutable QAtomicPointer< QList<const Value *> > _metaSignatures;
QHash<QString, const QmlEnumValue * > _enums;
int _metaObjectRevision;
};
class QMLJS_EXPORT Activation
{
public:
explicit Activation(Context *parentContext = 0);
virtual ~Activation();
Context *context() const;
Context *parentContext() const;
bool calledAsConstructor() const;
void setCalledAsConstructor(bool calledAsConstructor);
bool calledAsFunction() const;
void setCalledAsFunction(bool calledAsFunction);
ObjectValue *thisObject() const;
void setThisObject(ObjectValue *thisObject);
ValueList arguments() const;
void setArguments(const ValueList &arguments);
private:
ObjectValue *_thisObject;
ValueList _arguments;
bool _calledAsFunction;
Context *_parentContext;
};
class QMLJS_EXPORT FunctionValue: public ObjectValue
{
public:
FunctionValue(ValueOwner *valueOwner);
virtual ~FunctionValue();
// [[construct]]
const Value *construct(const ValueList &actuals = ValueList()) const;
// [[call]]
const Value *call(const ValueList &actuals = ValueList()) const;
const Value *call(const ObjectValue *thisObject,
const ValueList &actuals = ValueList()) const;
virtual const Value *returnValue() const;
virtual int argumentCount() const;
virtual const Value *argument(int index) const;
virtual QString argumentName(int index) const;
virtual bool isVariadic() const;
virtual const Value *invoke(const Activation *activation) const;
// Value interface
virtual const FunctionValue *asFunctionValue() const;
virtual void accept(ValueVisitor *visitor) const;
};
class QMLJS_EXPORT Function: public FunctionValue
{
public:
Function(ValueOwner *valueOwner);
virtual ~Function();
void addArgument(const Value *argument, const QString &name = QString());
void setReturnValue(const Value *returnValue);
// FunctionValue interface
virtual const Value *returnValue() const;
virtual int argumentCount() const;
virtual const Value *argument(int index) const;
virtual QString argumentName(int index) const;
virtual const Value *invoke(const Activation *activation) const;
private:
ValueList _arguments;
QStringList _argumentNames;
const Value *_returnValue;
};
////////////////////////////////////////////////////////////////////////////////
// typing environment
////////////////////////////////////////////////////////////////////////////////
class QMLJS_EXPORT CppQmlTypesLoader
{
public:
typedef QHash<QString, LanguageUtils::FakeMetaObject::ConstPtr> BuiltinObjects;
/** Loads a set of qmltypes files into the builtin objects list
and returns errors and warnings
*/
static BuiltinObjects loadQmlTypes(const QFileInfoList &qmltypesFiles,
QStringList *errors, QStringList *warnings);
static BuiltinObjects defaultQtObjects;
static BuiltinObjects defaultLibraryObjects;
// parses the contents of a qmltypes file and fills the newObjects map
static void parseQmlTypeDescriptions(
const QByteArray &qmlTypes,
BuiltinObjects *newObjects,
QString *errorMessage, QString *warningMessage);
};
class QMLJS_EXPORT CppQmlTypes
{
public:
CppQmlTypes(ValueOwner *valueOwner);
// package name for objects that should be always available
static const QLatin1String defaultPackage;
// package name for objects with their raw cpp name
static const QLatin1String cppPackage;
template <typename T>
void load(const T &fakeMetaObjects, const QString &overridePackage = QString());
QList<const QmlObjectValue *> createObjectsForImport(const QString &package, LanguageUtils::ComponentVersion version);
bool hasModule(const QString &module) const;
static QString qualifiedName(const QString &module, const QString &type,
LanguageUtils::ComponentVersion version);
const QmlObjectValue *objectByQualifiedName(const QString &fullyQualifiedName) const;
const QmlObjectValue *objectByQualifiedName(
const QString &package, const QString &type,
LanguageUtils::ComponentVersion version) const;
const QmlObjectValue *objectByCppName(const QString &cppName) const;
private:
// "Package.CppName ImportVersion" -> QmlObjectValue
QHash<QString, const QmlObjectValue *> _objectsByQualifiedName;
QHash<QString, QSet<LanguageUtils::FakeMetaObject::ConstPtr> > _fakeMetaObjectsByPackage;
ValueOwner *_valueOwner;
};
class ConvertToNumber: protected ValueVisitor // ECMAScript ToInt()
{
public:
ConvertToNumber(ValueOwner *valueOwner);
const Value *operator()(const Value *value);
protected:
const Value *switchResult(const Value *value);
virtual void visit(const NullValue *);
virtual void visit(const UndefinedValue *);
virtual void visit(const NumberValue *);
virtual void visit(const BooleanValue *);
virtual void visit(const StringValue *);
virtual void visit(const ObjectValue *);
virtual void visit(const FunctionValue *);
private:
ValueOwner *_valueOwner;
const Value *_result;
};
class ConvertToString: protected ValueVisitor // ECMAScript ToString
{
public:
ConvertToString(ValueOwner *valueOwner);
const Value *operator()(const Value *value);
protected:
const Value *switchResult(const Value *value);
virtual void visit(const NullValue *);
virtual void visit(const UndefinedValue *);
virtual void visit(const NumberValue *);
virtual void visit(const BooleanValue *);
virtual void visit(const StringValue *);
virtual void visit(const ObjectValue *);
virtual void visit(const FunctionValue *);
private:
ValueOwner *_valueOwner;
const Value *_result;
};
class ConvertToObject: protected ValueVisitor // ECMAScript ToObject
{
public:
ConvertToObject(ValueOwner *valueOwner);
const Value *operator()(const Value *value);
protected:
const Value *switchResult(const Value *value);
virtual void visit(const NullValue *);
virtual void visit(const UndefinedValue *);
virtual void visit(const NumberValue *);
virtual void visit(const BooleanValue *);
virtual void visit(const StringValue *);
virtual void visit(const ObjectValue *);
virtual void visit(const FunctionValue *);
private:
ValueOwner *_valueOwner;
const Value *_result;
};
class QMLJS_EXPORT TypeId: protected ValueVisitor
{
QString _result;
public:
QString operator()(const Value *value);
protected:
virtual void visit(const NullValue *);
virtual void visit(const UndefinedValue *);
virtual void visit(const NumberValue *);
virtual void visit(const BooleanValue *);
virtual void visit(const StringValue *);
virtual void visit(const ObjectValue *object);
virtual void visit(const FunctionValue *object);
virtual void visit(const ColorValue *);
virtual void visit(const AnchorLineValue *);
};
// internal
class QMLJS_EXPORT QmlPrototypeReference: public Reference
{
public:
QmlPrototypeReference(AST::UiQualifiedId *qmlTypeName, const Document *doc, ValueOwner *valueOwner);
virtual ~QmlPrototypeReference();
AST::UiQualifiedId *qmlTypeName() const;
private:
virtual const Value *value(ReferenceContext *referenceContext) const;
AST::UiQualifiedId *_qmlTypeName;
const Document *_doc;
};
class QMLJS_EXPORT ASTVariableReference: public Reference
{
AST::VariableDeclaration *_ast;
const Document *_doc;
public:
ASTVariableReference(AST::VariableDeclaration *ast, const Document *doc, ValueOwner *valueOwner);
virtual ~ASTVariableReference();
private:
virtual const Value *value(ReferenceContext *referenceContext) const;
virtual bool getSourceLocation(QString *fileName, int *line, int *column) const;
};
class QMLJS_EXPORT ASTFunctionValue: public FunctionValue
{
AST::FunctionExpression *_ast;
const Document *_doc;
QList<QString> _argumentNames;
public:
ASTFunctionValue(AST::FunctionExpression *ast, const Document *doc, ValueOwner *valueOwner);
virtual ~ASTFunctionValue();
AST::FunctionExpression *ast() const;
virtual const Value *returnValue() const;
virtual int argumentCount() const;
virtual const Value *argument(int) const;
virtual QString argumentName(int index) const;
virtual bool isVariadic() const;
virtual bool getSourceLocation(QString *fileName, int *line, int *column) const;
};
class QMLJS_EXPORT ASTPropertyReference: public Reference
{
AST::UiPublicMember *_ast;
const Document *_doc;
QString _onChangedSlotName;
public:
ASTPropertyReference(AST::UiPublicMember *ast, const Document *doc, ValueOwner *valueOwner);
virtual ~ASTPropertyReference();
AST::UiPublicMember *ast() const { return _ast; }
QString onChangedSlotName() const { return _onChangedSlotName; }
virtual bool getSourceLocation(QString *fileName, int *line, int *column) const;
private:
virtual const Value *value(ReferenceContext *referenceContext) const;
};
class QMLJS_EXPORT ASTSignal: public FunctionValue
{
AST::UiPublicMember *_ast;
const Document *_doc;
QString _slotName;
public:
ASTSignal(AST::UiPublicMember *ast, const Document *doc, ValueOwner *valueOwner);
virtual ~ASTSignal();
AST::UiPublicMember *ast() const { return _ast; }
QString slotName() const { return _slotName; }
// FunctionValue interface
virtual int argumentCount() const;
virtual const Value *argument(int index) const;
virtual QString argumentName(int index) const;
// Value interface
virtual bool getSourceLocation(QString *fileName, int *line, int *column) const;
};
class QMLJS_EXPORT ASTObjectValue: public ObjectValue
{
AST::UiQualifiedId *_typeName;
AST::UiObjectInitializer *_initializer;
const Document *_doc;
QList<ASTPropertyReference *> _properties;
QList<ASTSignal *> _signals;
ASTPropertyReference *_defaultPropertyRef;
public:
ASTObjectValue(AST::UiQualifiedId *typeName,
AST::UiObjectInitializer *initializer,
const Document *doc,
ValueOwner *valueOwner);
virtual ~ASTObjectValue();
bool getSourceLocation(QString *fileName, int *line, int *column) const;
virtual void processMembers(MemberProcessor *processor) const;
QString defaultPropertyName() const;
AST::UiObjectInitializer *initializer() const;
AST::UiQualifiedId *typeName() const;
const Document *document() const;
};
class QMLJS_EXPORT ImportInfo
{
public:
enum Type {
InvalidImport,
ImplicitDirectoryImport,
LibraryImport,
FileImport,
DirectoryImport,
UnknownFileImport // refers a file/directory that wasn't found
};
ImportInfo();
static ImportInfo moduleImport(QString uri, LanguageUtils::ComponentVersion version,
const QString &as, AST::UiImport *ast = 0);
static ImportInfo pathImport(const QString &docPath, const QString &path,
LanguageUtils::ComponentVersion version,
const QString &as, AST::UiImport *ast = 0);
static ImportInfo invalidImport(AST::UiImport *ast = 0);
static ImportInfo implicitDirectoryImport(const QString &directory);
bool isValid() const;
Type type() const;
// LibraryImport: uri with ',' separator
// Other: non-absolute path
QString name() const;
// LibraryImport: uri with QDir::separator separator
// Other: absoluteFilePath
QString path() const;
// null if the import has no 'as', otherwise the target id
QString as() const;
LanguageUtils::ComponentVersion version() const;
AST::UiImport *ast() const;
private:
Type _type;
QString _name;
QString _path;
LanguageUtils::ComponentVersion _version;
QString _as;
AST::UiImport *_ast;
};
class QMLJS_EXPORT Import {
public:
Import();
// const!
ObjectValue *object;
ImportInfo info;
// uri imports: path to library, else empty
QString libraryPath;
};
class Imports;
class QMLJS_EXPORT TypeScope: public ObjectValue
{
public:
TypeScope(const Imports *imports, ValueOwner *valueOwner);
virtual const Value *lookupMember(const QString &name, const Context *context,
const ObjectValue **foundInObject = 0,
bool examinePrototypes = true) const;
virtual void processMembers(MemberProcessor *processor) const;
private:
const Imports *_imports;
};
class QMLJS_EXPORT JSImportScope: public ObjectValue
{
public:
JSImportScope(const Imports *imports, ValueOwner *valueOwner);
virtual const Value *lookupMember(const QString &name, const Context *context,
const ObjectValue **foundInObject = 0,
bool examinePrototypes = true) const;
virtual void processMembers(MemberProcessor *processor) const;
private:
const Imports *_imports;
};
class QMLJS_EXPORT Imports
{
public:
Imports(ValueOwner *valueOwner);
void append(const Import &import);
ImportInfo info(const QString &name, const Context *context) const;
QString nameForImportedObject(const ObjectValue *value, const Context *context) const;
QList<Import> all() const;
const TypeScope *typeScope() const;
const JSImportScope *jsImportScope() const;
#ifdef QT_DEBUG
void dump() const;
#endif
private:
// holds imports in the order they appeared,
// lookup order is back to front
QList<Import> _imports;
TypeScope *_typeScope;
JSImportScope *_jsImportScope;
};
} // namespace QmlJS
#endif // QMLJS_INTERPRETER_H