// Copyright (C) 2008 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.caja.parser.js;
import com.google.caja.reporting.RenderContext;
import com.google.caja.lexer.FilePosition;
import com.google.caja.lexer.TokenConsumer;
import com.google.caja.parser.ParseTreeNode;
import java.util.List;
/**
* A statement that is a noop in normal execution, but will trigger a breakpoint
* if a debugger is attached.
*
* @author mikesamuel@gmail.com
*/
public final class DebuggerStmt extends AbstractStatement {
private static final long serialVersionUID = 2458000650731417741L;
/**
* This ctor is provided for reflection.
* @param value unused.
* @param children unused.
*/
@ReflectiveCtor
public DebuggerStmt(
FilePosition pos, Void value, List<? extends ParseTreeNode> children) {
super(pos, NoChildren.class);
}
public DebuggerStmt(FilePosition pos) { super(pos, NoChildren.class); }
@Override
public Object getValue() { return null; }
public void render(RenderContext rc) {
TokenConsumer out = rc.getOut();
out.mark(getFilePosition());
out.consume("debugger");
}
public boolean hasHangingConditional() { return false; }
}