C++ (Cpp) NFA::debugPrintDotの例

コード例 #1

Ref<CompiledContentExtension> compileRuleList(const String& ruleList)
{
    auto parsedRuleList = parseRuleList(ruleList);

#if CONTENT_EXTENSIONS_PERFORMANCE_REPORTING
    double nfaBuildTimeStart = monotonicallyIncreasingTime();
#endif

    Vector<SerializedActionByte> actions;
    Vector<unsigned> actionLocations = serializeActions(parsedRuleList, actions);

    NFA nfa;
    URLFilterParser urlFilterParser(nfa);
    for (unsigned ruleIndex = 0; ruleIndex < parsedRuleList.size(); ++ruleIndex) {
        const ContentExtensionRule& contentExtensionRule = parsedRuleList[ruleIndex];
        const Trigger& trigger = contentExtensionRule.trigger();
        ASSERT(trigger.urlFilter.length());

        String error = urlFilterParser.addPattern(trigger.urlFilter, trigger.urlFilterIsCaseSensitive, actionLocations[ruleIndex]);

        if (!error.isNull()) {
            dataLogF("Error while parsing %s: %s\n", trigger.urlFilter.utf8().data(), error.utf8().data());
            continue;
        }
    }

#if CONTENT_EXTENSIONS_PERFORMANCE_REPORTING
    double nfaBuildTimeEnd = monotonicallyIncreasingTime();
    dataLogF("    Time spent building the NFA: %f\n", (nfaBuildTimeEnd - nfaBuildTimeStart));
#endif

#if CONTENT_EXTENSIONS_STATE_MACHINE_DEBUGGING
    nfa.debugPrintDot();
#endif

#if CONTENT_EXTENSIONS_PERFORMANCE_REPORTING
    double dfaBuildTimeStart = monotonicallyIncreasingTime();
#endif

    const DFA dfa = NFAToDFA::convert(nfa);

#if CONTENT_EXTENSIONS_PERFORMANCE_REPORTING
    double dfaBuildTimeEnd = monotonicallyIncreasingTime();
    dataLogF("    Time spent building the DFA: %f\n", (dfaBuildTimeEnd - dfaBuildTimeStart));
#endif

    // FIXME: never add a DFA that only matches the empty set.

#if CONTENT_EXTENSIONS_STATE_MACHINE_DEBUGGING
    dfa.debugPrintDot();
#endif

    Vector<DFABytecode> bytecode;
    DFABytecodeCompiler compiler(dfa, bytecode);
    compiler.compile();

    return CompiledContentExtension::create(WTF::move(bytecode), WTF::move(actions));
}