t044trace.html - Android社区 - https://www.androidos.net.cn/

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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="content-type" content="text/html;charset=utf-8" />
<title>t044trace</title>

<!-- ANTLR includes -->
<script type="text/javascript" src="../../lib/antlr3-all.js"></script>
<script type="text/javascript" src="t044traceLexer.js"></script>
<script type="text/javascript" src="t044traceParser.js"></script>

<!-- JsUnit include -->
<script type="text/javascript" src="../jsunit/app/jsUnitCore.js"></script>

<!-- Test Code -->
<script type="text/javascript">
    var TLexer = function() {
        TLexer.superclass.constructor.apply(this, arguments);
        this.traces = [];
    };
    org.antlr.lang.extend(TLexer, t044traceLexer, {
        traceIn: function(ruleName, ruleIndex) {
            this.traces.push(">"+ruleName);
        },
        traceOut: function(ruleName, ruleIndex) {
            this.traces.push("<"+ruleName);
        },
        recover: function(re) {
            /* don't recover, just crash */
            throw re;
        }
    });

    var TParser = function() {
        TParser.superclass.constructor.apply(this, arguments);
        this.traces = [];
    };
    org.antlr.lang.extend(TParser, t044traceParser, {
        traceIn: function(ruleName, ruleIndex) {
            this.traces.push(">"+ruleName);
        },
        traceOut: function(ruleName, ruleIndex) {
            this.traces.push("<"+ruleName);
        },
        recover: function(re) {
            /* don't recover, just crash */
            throw re;
        }
    });


    function testTrace() {
        var cstream = new org.antlr.runtime.ANTLRStringStream('< 1 + 2 + 3 >'),
            lexer = new TLexer(cstream),
            tstream = new org.antlr.runtime.CommonTokenStream(lexer),
            parser = new TParser(tstream);

        parser.a();
        assertArrayEquals(lexer.traces,
            [ '>T__6', '<T__6', '>WS', '<WS', '>INT', '<INT', '>WS', '<WS',
              '>T__8', '<T__8', '>WS', '<WS', '>INT', '<INT', '>WS', '<WS',
              '>T__8', '<T__8', '>WS', '<WS', '>INT', '<INT', '>WS', '<WS',
              '>T__7', '<T__7']
        );
        assertArrayEquals(parser.traces,
            [ '>a', '>synpred1_t044trace_fragment', '<synpred1_t044trace_fragment', '>b', '>c',
              '<c', '>c', '<c', '>c', '<c', '<b', '<a' ]
        );
    }
</script>

</head>
<body>
    <h1>t044trace</h1>
</body>
</html>