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/*
* Copyright (c) 2013, 2015 QNX Software Systems and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*/
package org.eclipse.cdt.internal.qt.core;
import org.eclipse.cdt.core.dom.ast.DOMException;
import org.eclipse.cdt.core.dom.ast.IBinding;
import org.eclipse.cdt.core.dom.ast.IType;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPClassType;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPFunction;
/**
* Declares constants related to tokens that are special in Qt applications.
*/
public class QtKeywords {
public static final String CONNECT = "connect";
public static final String DISCONNECT = "disconnect";
public static final String Q_CLASSINFO = "Q_CLASSINFO";
public static final String Q_DECLARE_FLAGS = "Q_DECLARE_FLAGS";
public static final String Q_ENUMS = "Q_ENUMS";
public static final String Q_FLAGS = "Q_FLAGS";
public static final String Q_GADGET = "Q_GADGET";
public static final String Q_INVOKABLE = "Q_INVOKABLE";
public static final String Q_OBJECT = "Q_OBJECT";
public static final String Q_PROPERTY = "Q_PROPERTY";
public static final String Q_REVISION = "Q_REVISION";
public static final String Q_SIGNAL = "Q_SIGNAL";
public static final String Q_SIGNALS = "Q_SIGNALS";
public static final String Q_SLOT = "Q_SLOT";
public static final String Q_SLOTS = "Q_SLOTS";
public static final String QMETAMETHOD = "QMetaMethod";
public static final String QML_ATTACHED_PROPERTIES = "qmlAttachedProperties";
public static final String QML_REGISTER_TYPE = "qmlRegisterType";
public static final String QML_REGISTER_UNCREATABLE_TYPE = "qmlRegisterUncreatableType";
public static final String QOBJECT = "QObject";
public static final String SIGNAL = "SIGNAL";
public static final String SIGNALS = "signals";
public static final String SLOT = "SLOT";
public static final String SLOTS = "slots";
/**
* Returns true if the argument type is for Qt's QObject class and false otherwise.
*/
public static boolean isQObject(IType type) {
if (!(type instanceof ICPPClassType))
return false;
ICPPClassType clsType = (ICPPClassType)type;
return QtKeywords.QOBJECT.equals(clsType.getName());
}
/**
* Returns true if the argument type is for Qt's QMetaMethod class and false otherwise.
*/
public static boolean isQMetaMethod(IType type) {
if (!(type instanceof ICPPClassType))
return false;
ICPPClassType clsType = (ICPPClassType)type;
return QMETAMETHOD.equals(clsType.getName());
}
/**
* Returns true if the argument binding is for the QObject::connect function
* and false otherwise.
*/
public static boolean is_QObject_connect(IBinding binding) {
String[] qualName = getFunctionQualifiedName(binding);
return qualName != null
&& qualName.length == 2
&& QOBJECT.equals(qualName[0])
&& CONNECT.equals(qualName[1]);
}
/**
* Returns true if the argument binding is for the QObject::disconnect function
* and false otherwise.
*/
public static boolean is_QObject_disconnect(IBinding binding) {
String[] qualName = getFunctionQualifiedName(binding);
return qualName != null
&& qualName.length == 2
&& QOBJECT.equals(qualName[0])
&& DISCONNECT.equals(qualName[1]);
}
/**
* Returns true if the given binding will register a type with the QML type system and false
* otherwise.
*/
public static boolean is_QmlType(IBinding binding) {
String[] qualName = getFunctionQualifiedName(binding);
return qualName != null
&& qualName.length == 1
&& (QML_REGISTER_TYPE.equals(qualName[0])
|| QML_REGISTER_UNCREATABLE_TYPE.equals(qualName[0]));
}
private static String[] getFunctionQualifiedName(IBinding binding) {
// IBinding#getAdapter returns null when binding is an instance of
// PDOMCPPMethod.
if (binding instanceof ICPPFunction)
try {
return ((ICPPFunction) binding).getQualifiedName();
} catch (DOMException e) {
Activator.log(e);
}
return null;
}
}
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