xref: /aosp_15_r20/external/antlr/runtime/JavaScript/tests/functional/t031emptyAlt.html (revision 16467b971bd3e2009fad32dd79016f2c7e421deb)
1*16467b97STreehugger Robot<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
2*16467b97STreehugger Robot<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
3*16467b97STreehugger Robot<head>
4*16467b97STreehugger Robot<meta http-equiv="content-type" content="text/html;charset=utf-8" />
5*16467b97STreehugger Robot<title>t031emptyAlt</title>
6*16467b97STreehugger Robot
7*16467b97STreehugger Robot<!-- ANTLR includes -->
8*16467b97STreehugger Robot<script type="text/javascript" src="../../lib/antlr3-all.js"></script>
9*16467b97STreehugger Robot<script type="text/javascript" src="t031emptyAltLexer.js"></script>
10*16467b97STreehugger Robot<script type="text/javascript" src="t031emptyAltParser.js"></script>
11*16467b97STreehugger Robot
12*16467b97STreehugger Robot
13*16467b97STreehugger Robot<!-- JsUnit include -->
14*16467b97STreehugger Robot<script type="text/javascript" src="../jsunit/app/jsUnitCore.js"></script>
15*16467b97STreehugger Robot
16*16467b97STreehugger Robot<!-- Test Code -->
17*16467b97STreehugger Robot<script type="text/javascript">
18*16467b97STreehugger Robot    var TParser = function() {
19*16467b97STreehugger Robot        this.cond = true;
20*16467b97STreehugger Robot        TParser.superclass.constructor.apply(this, arguments);
21*16467b97STreehugger Robot    }
22*16467b97STreehugger Robot    org.antlr.lang.extend(TParser, t031emptyAltParser, {
23*16467b97STreehugger Robot        emitErrorMessage: function() { /* don't report errors */ },
24*16467b97STreehugger Robot        recover: function(re) {
25*16467b97STreehugger Robot            /* don't recover, just crash */
26*16467b97STreehugger Robot            throw re;
27*16467b97STreehugger Robot        }
28*16467b97STreehugger Robot    });
29*16467b97STreehugger Robot
30*16467b97STreehugger Robot
31*16467b97STreehugger Robot    function testValid1() {
32*16467b97STreehugger Robot        var cstream = new org.antlr.runtime.ANTLRStringStream("foo"),
33*16467b97STreehugger Robot            lexer = new t031emptyAltLexer(cstream),
34*16467b97STreehugger Robot            tstream = new org.antlr.runtime.CommonTokenStream(lexer),
35*16467b97STreehugger Robot            parser = new TParser(tstream);
36*16467b97STreehugger Robot
37*16467b97STreehugger Robot        parser.cond = false;
38*16467b97STreehugger Robot        parser.r();
39*16467b97STreehugger Robot    }
40*16467b97STreehugger Robot
41*16467b97STreehugger Robot    function testValid2() {
42*16467b97STreehugger Robot        var cstream = new org.antlr.runtime.ANTLRStringStream("foo  jfef9jfe88d"),
43*16467b97STreehugger Robot            lexer = new t031emptyAltLexer(cstream),
44*16467b97STreehugger Robot            tstream = new org.antlr.runtime.CommonTokenStream(lexer),
45*16467b97STreehugger Robot            parser = new TParser(tstream);
46*16467b97STreehugger Robot
47*16467b97STreehugger Robot        parser.cond = true;
48*16467b97STreehugger Robot        parser.r();
49*16467b97STreehugger Robot    }
50*16467b97STreehugger Robot
51*16467b97STreehugger Robot    function testInvalid1() {
52*16467b97STreehugger Robot        var cstream = new org.antlr.runtime.ANTLRStringStream("foo bar"),
53*16467b97STreehugger Robot            lexer = new t031emptyAltLexer(cstream),
54*16467b97STreehugger Robot            tstream = new org.antlr.runtime.CommonTokenStream(lexer),
55*16467b97STreehugger Robot            parser = new TParser(tstream);
56*16467b97STreehugger Robot
57*16467b97STreehugger Robot        try {
58*16467b97STreehugger Robot            parser.cond = false;
59*16467b97STreehugger Robot            parser.r();
60*16467b97STreehugger Robot            fail("shouldn't reach here");
61*16467b97STreehugger Robot        } catch(e) {}
62*16467b97STreehugger Robot    }
63*16467b97STreehugger Robot</script>
64*16467b97STreehugger Robot
65*16467b97STreehugger Robot</head>
66*16467b97STreehugger Robot<body>
67*16467b97STreehugger Robot    <h1>t031emptyAlt</h1>
68*16467b97STreehugger Robot</body>
69*16467b97STreehugger Robot</html>
70