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Java > Open Source Codes > org > jruby > ast > visitor > rewriter > utils > CallDepth


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14  * Copyright (C) 2006 Mirko Stocker <me@misto.ch>
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28
29 package org.jruby.ast.visitor.rewriter.utils;
30
31 public class CallDepth {
32     private int nestedCallDepth;
33     private int savedNestedCallDepth;
34     
35     public void enterCall() {
36         nestedCallDepth++;
37     }
38
39     public void leaveCall() {
40         nestedCallDepth--;
41         if (nestedCallDepth < 0) nestedCallDepth = 0;
42     }
43
44     public boolean inCall() {
45         return nestedCallDepth > 0;
46     }
47
48     /*
49      * Those methods are used do disable the output of parantheses in arguments
50      * of operator-calls
51      */
52     public void disableCallDepth() {
53         savedNestedCallDepth = nestedCallDepth;
54         nestedCallDepth = 0;
55     }
56
57     public void enableCallDepth() {
58         nestedCallDepth = savedNestedCallDepth;
59     }
60 }
61
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