/*******************************************************************************
* Copyright (c) 2015 QNX Software Systems and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* QNX Software Systems - Initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.qt.core.qmljs;
/**
* A JavaScript unary expression from the <a href="https://github.com/estree/estree/blob/master/spec.md#unaryexpression">ESTree
* Specification</a>
*/
public interface IJSUnaryExpression extends IJSExpression {
/**
* An Enumeration covering the 7 unary operators in JavaScript
*/
enum UnaryOperator {
Negation("-"), //$NON-NLS-1$
Plus("+"), //$NON-NLS-1$
Not("!"), //$NON-NLS-1$
BitwiseNot("~"), //$NON-NLS-1$
Typeof("typeof"), //$NON-NLS-1$
Void("void"), //$NON-NLS-1$
Delete("delete"); //$NON-NLS-1$
public static UnaryOperator fromObject(Object obj) {
if (obj instanceof String) {
for (UnaryOperator op : UnaryOperator.values()) {
if (obj.equals(op.toString())) {
return op;
}
}
}
return null;
}
private final String op;
private UnaryOperator(String op) {
this.op = op;
}
@Override
public String toString() {
return this.op;
}
}
@Override
default String getType() {
return "UnaryExpression"; //$NON-NLS-1$
}
public UnaryOperator getOperator();
public boolean isPrefix();
public IJSExpression getArgument();
}