org.jetbrains.kotlin.js.backend.ast.JsUnaryOperation Maven / Gradle / Ivy
// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
package org.jetbrains.kotlin.js.backend.ast;
public abstract class JsUnaryOperation extends JsExpression {
private JsExpression arg;
private final JsUnaryOperator op;
public JsUnaryOperation(JsUnaryOperator op, JsExpression arg) {
super();
this.op = op;
this.arg = arg;
}
public JsExpression getArg() {
return arg;
}
public JsUnaryOperator getOperator() {
return op;
}
public void setArg(JsExpression arg) {
this.arg = arg;
}
@Override
public void acceptChildren(JsVisitor visitor) {
if (op.isModifying()) {
// The delete operator is practically like an assignment of undefined, so
// for practical purposes we're treating it as an lvalue.
visitor.acceptLvalue(arg);
}
else {
visitor.accept(arg);
}
}
@Override
public void traverse(JsVisitorWithContext v, JsContext ctx) {
if (op.isModifying()) {
/*
* The delete operator is practically like an assignment of undefined, so for practical
* purposes we're treating it as an lvalue.
*/
arg = v.acceptLvalue(arg);
} else {
arg = v.accept(arg);
}
}
}