/**
* Track memoization; this is not part of standard debug interface but is triggered by profiling.
* Code gen inserts an override for this method in the recognizer, which triggers this method.
* Called from alreadyParsedRule().
*/
public void examineRuleMemoization(
IntStream input,
int ruleIndex,
int stopIndex, // index or MEMO_RULE_UNKNOWN...
String ruleName) {
if (dump)
System.out.println("examine memo " + ruleName + " at " + input.index() + ": " + stopIndex);
if (stopIndex == BaseRecognizer.MEMO_RULE_UNKNOWN) {
// System.out.println("rule "+ruleIndex+" missed @ "+input.index());
stats.numMemoizationCacheMisses++;
stats.numGuessingRuleInvocations++; // we'll have to enter
currentDecision().numMemoizationCacheMisses++;
} else {
// regardless of rule success/failure, if in cache, we have a cache hit
// System.out.println("rule "+ruleIndex+" hit @ "+input.index());
stats.numMemoizationCacheHits++;
currentDecision().numMemoizationCacheHits++;
}
}
public Object getInputSymbol(int k) {
if (input instanceof TokenStream) {
return ((TokenStream) input).LT(k);
}
return new Character((char) input.LA(k));
}