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Add the DETAILED_DFA_STATE_STATS option to TestPerformance, which shows a breakdown of DFA states by rule (parsers) or mode (lexers)

This commit is contained in:
Sam Harwell 2013-05-01 22:06:00 -05:00
parent d147e9202d
commit d75f8e9aa3
1 changed files with 41 additions and 0 deletions
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41
tool/test/org/antlr/v4/test/TestPerformance.java
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@ -227,6 +227,11 @@ public class TestPerformance extends BaseTest {
* is 0, otherwise the last file which was parsed on the first thread).
*/
private static final boolean SHOW_DFA_STATE_STATS = true;
/**
* If {@code true}, the DFA state statistics report includes a breakdown of
* the number of DFA states contained in each decision (with rule names).
*/
private static final boolean DETAILED_DFA_STATE_STATS = true;
/**
* Specify the {@link PredictionMode} used by the
@ -834,6 +839,24 @@ public class TestPerformance extends BaseTest {
}
System.out.format("There are %d lexer DFAState instances, %d configs (%d unique).%n", states, configs, uniqueConfigs.size());
if (DETAILED_DFA_STATE_STATS) {
System.out.format("\tMode\tStates\tConfigs\tMode%n");
for (int i = 0; i < modeToDFA.length; i++) {
DFA dfa = modeToDFA[i];
if (dfa == null) {
continue;
}
int modeConfigs = 0;
for (DFAState state : dfa.states.values()) {
modeConfigs += state.configs.size();
}
String modeName = lexer.getModeNames()[i];
System.out.format("\t%d\t%d\t%d\t%s%n", dfa.decision, dfa.states.size(), modeConfigs, modeName);
}
}
}
}
@ -863,6 +886,24 @@ public class TestPerformance extends BaseTest {
}
System.out.format("There are %d parser DFAState instances, %d configs (%d unique).%n", states, configs, uniqueConfigs.size());
if (DETAILED_DFA_STATE_STATS) {
System.out.format("\tDecision\tStates\tConfigs\tRule%n");
for (int i = 0; i < decisionToDFA.length; i++) {
DFA dfa = decisionToDFA[i];
if (dfa == null || dfa.states.isEmpty()) {
continue;
}
int decisionConfigs = 0;
for (DFAState state : dfa.states.values()) {
decisionConfigs += state.configs.size();
}
String ruleName = parser.getRuleNames()[parser.getATN().decisionToState.get(dfa.decision).ruleIndex];
System.out.format("\t%d\t%d\t%d\t%s%n", dfa.decision, dfa.states.size(), decisionConfigs, ruleName);
}
}
}
int localDfaCount = 0;