01: /*
02: [The "BSD licence"]
03: Copyright (c) 2005-2006 Terence Parr
04: All rights reserved.
05:
06: Redistribution and use in source and binary forms, with or without
07: modification, are permitted provided that the following conditions
08: are met:
09: 1. Redistributions of source code must retain the above copyright
10: notice, this list of conditions and the following disclaimer.
11: 2. Redistributions in binary form must reproduce the above copyright
12: notice, this list of conditions and the following disclaimer in the
13: documentation and/or other materials provided with the distribution.
14: 3. The name of the author may not be used to endorse or promote products
15: derived from this software without specific prior written permission.
16:
17: THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18: IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19: OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20: IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21: INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22: NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23: DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24: THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25: (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26: THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27: */
28: package org.antlr.tool;
29:
30: import org.antlr.stringtemplate.StringTemplate;
31: import org.antlr.analysis.*;
32: import antlr.Token;
33:
34: import java.util.*;
35:
36: /** Indicates recursion overflow. A DFA state tried add an NFA configuration
37: * with NFA state p that was mentioned in its stack context too many times.
38: */
39: public class RecursionOverflowMessage extends Message {
40: public DecisionProbe probe;
41: public DFAState sampleBadState;
42: public int alt;
43: public Collection targetRules;
44: public Collection callSiteStates;
45:
46: public RecursionOverflowMessage(DecisionProbe probe,
47: DFAState sampleBadState, int alt, Collection targetRules,
48: Collection callSiteStates) {
49: super (ErrorManager.MSG_RECURSION_OVERLOW);
50: this .probe = probe;
51: this .sampleBadState = sampleBadState;
52: this .alt = alt;
53: this .targetRules = targetRules;
54: this .callSiteStates = callSiteStates;
55: }
56:
57: public String toString() {
58: GrammarAST decisionASTNode = probe.dfa.getDecisionASTNode();
59: line = decisionASTNode.getLine();
60: column = decisionASTNode.getColumn();
61: String fileName = probe.dfa.nfa.grammar.getFileName();
62: if (fileName != null) {
63: file = fileName;
64: }
65:
66: StringTemplate st = getMessageTemplate();
67: st.setAttribute("targetRules", targetRules);
68: st.setAttribute("alt", alt);
69: st.setAttribute("callSiteStates", callSiteStates);
70:
71: List labels = probe
72: .getSampleNonDeterministicInputSequence(sampleBadState);
73: String input = probe.getInputSequenceDisplay(labels);
74: st.setAttribute("input", input);
75:
76: return super.toString(st);
77: }
78:
79: }
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