public class Profiler extends BlankDebugEventListener
Modifier and Type | Class and Description |
---|---|
static class |
Profiler.DecisionDescriptor |
static class |
Profiler.DecisionEvent |
static class |
Profiler.ProfileStats |
Modifier and Type | Field and Description |
---|---|
protected int |
backtrackDepth |
protected Stack<String> |
currentGrammarFileName |
protected Stack<Integer> |
currentLine |
protected Stack<Integer> |
currentPos |
protected Stack<String> |
currentRuleName |
static String |
DATA_SEP |
protected List<Profiler.DecisionEvent> |
decisionEvents |
protected DoubleKeyMap<String,Integer,Profiler.DecisionDescriptor> |
decisions |
protected Stack<Profiler.DecisionEvent> |
decisionStack |
protected Token |
lastRealTokenTouchedInDecision |
static String |
newline |
DebugParser |
parser
Ack, should not store parser; can't do remote stuff.
|
protected int |
ruleLevel |
static String |
RUNTIME_STATS_FILENAME |
protected Set<String> |
uniqueRules |
static String |
Version
Because I may change the stats, I need to track that for later
computations to be consistent.
|
FALSE, PROTOCOL_VERSION, TRUE
Constructor and Description |
---|
Profiler() |
Profiler(DebugParser parser) |
Modifier and Type | Method and Description |
---|---|
void |
beginBacktrack(int level)
Track backtracking decisions.
|
void |
consumeHiddenToken(Token token)
An off-channel input token was consumed.
|
void |
consumeToken(Token token)
An input token was consumed; matched by any kind of element.
|
protected Profiler.DecisionEvent |
currentDecision() |
void |
endBacktrack(int level,
boolean successful)
Successful or not, track how much lookahead synpreds use
|
void |
enterDecision(int decisionNumber,
boolean couldBacktrack)
Every decision, fixed k or arbitrary, has an enter/exit event
so that a GUI can easily track what LT/consume events are
associated with prediction.
|
void |
enterRule(String grammarFileName,
String ruleName)
The parser has just entered a rule.
|
void |
examineRuleMemoization(IntStream input,
int ruleIndex,
int stopIndex,
String ruleName)
Track memoization; this is not part of standard debug interface
but is triggered by profiling.
|
void |
exitDecision(int decisionNumber) |
void |
exitRule(String grammarFileName,
String ruleName)
This is the last thing executed before leaving a rule.
|
List<Profiler.DecisionEvent> |
getDecisionEvents() |
DoubleKeyMap<String,Integer,Profiler.DecisionDescriptor> |
getDecisionStats() |
String |
getDecisionStatsDump() |
int |
getNumberOfHiddenTokens(int i,
int j)
Get num hidden tokens between i..j inclusive
|
Profiler.ProfileStats |
getReport() |
boolean |
inDecision()
The parser is in a decision if the decision depth > 0.
|
void |
location(int line,
int pos)
To watch a parser move through the grammar, the parser needs to
inform the debugger what line/charPos it is passing in the grammar.
|
protected String |
locationDescription() |
protected String |
locationDescription(String file,
String rule,
int line,
int pos) |
void |
LT(int i,
Token t)
Track refs to lookahead if in a fixed/nonfixed decision.
|
void |
mark(int i)
The parser is going to look arbitrarily ahead; mark this location,
the token stream's marker is sent in case you need it.
|
void |
memoize(IntStream input,
int ruleIndex,
int ruleStartIndex,
String ruleName)
Warning: doesn't track success/failure, just unique recording event
|
void |
recognitionException(RecognitionException e)
A recognition exception occurred such as NoViableAltException.
|
void |
rewind()
Rewind to the input position of the last marker.
|
void |
rewind(int i)
After an arbitrairly long lookahead as with a cyclic DFA (or with
any backtrack), this informs the debugger that stream should be
rewound to the position associated with marker.
|
void |
semanticPredicate(boolean result,
String predicate)
A semantic predicate was evaluate with this result and action text
|
void |
setParser(DebugParser parser) |
void |
terminate()
Parsing is over; successfully or not.
|
protected int[] |
toArray(List<Integer> a) |
String |
toNotifyString() |
String |
toString() |
static String |
toString(Profiler.ProfileStats stats) |
protected int[] |
trim(int[] X,
int n) |
addChild, becomeRoot, beginResync, commence, consumeNode, createNode, createNode, endResync, enterAlt, enterSubRule, errorNode, exitSubRule, LT, nilNode, setTokenBoundaries
public static final String DATA_SEP
public static final String newline
public static final String Version
public static final String RUNTIME_STATS_FILENAME
public DebugParser parser
protected int ruleLevel
protected Token lastRealTokenTouchedInDecision
protected DoubleKeyMap<String,Integer,Profiler.DecisionDescriptor> decisions
protected List<Profiler.DecisionEvent> decisionEvents
protected Stack<Profiler.DecisionEvent> decisionStack
protected int backtrackDepth
public Profiler()
public Profiler(DebugParser parser)
public void enterRule(String grammarFileName, String ruleName)
DebugEventListener
enterRule
in interface DebugEventListener
enterRule
in class BlankDebugEventListener
public void exitRule(String grammarFileName, String ruleName)
DebugEventListener
exitRule
in interface DebugEventListener
exitRule
in class BlankDebugEventListener
public void examineRuleMemoization(IntStream input, int ruleIndex, int stopIndex, String ruleName)
public void memoize(IntStream input, int ruleIndex, int ruleStartIndex, String ruleName)
public void location(int line, int pos)
DebugEventListener
location
in interface DebugEventListener
location
in class BlankDebugEventListener
public void enterDecision(int decisionNumber, boolean couldBacktrack)
DebugEventListener
enterDecision
in interface DebugEventListener
enterDecision
in class BlankDebugEventListener
public void exitDecision(int decisionNumber)
exitDecision
in interface DebugEventListener
exitDecision
in class BlankDebugEventListener
public void consumeToken(Token token)
DebugEventListener
consumeToken
in interface DebugEventListener
consumeToken
in class BlankDebugEventListener
public boolean inDecision()
public void consumeHiddenToken(Token token)
DebugEventListener
consumeHiddenToken
in interface DebugEventListener
consumeHiddenToken
in class BlankDebugEventListener
public void LT(int i, Token t)
LT
in interface DebugEventListener
LT
in class BlankDebugEventListener
public void beginBacktrack(int level)
beginBacktrack
in interface DebugEventListener
beginBacktrack
in class BlankDebugEventListener
public void endBacktrack(int level, boolean successful)
endBacktrack
in interface DebugEventListener
endBacktrack
in class BlankDebugEventListener
public void mark(int i)
DebugEventListener
mark
in interface DebugEventListener
mark
in class BlankDebugEventListener
public void rewind(int i)
DebugEventListener
rewind
in interface DebugEventListener
rewind
in class BlankDebugEventListener
public void rewind()
DebugEventListener
rewind
in interface DebugEventListener
rewind
in class BlankDebugEventListener
protected Profiler.DecisionEvent currentDecision()
public void recognitionException(RecognitionException e)
DebugEventListener
recognitionException
in interface DebugEventListener
recognitionException
in class BlankDebugEventListener
public void semanticPredicate(boolean result, String predicate)
DebugEventListener
semanticPredicate
in interface DebugEventListener
semanticPredicate
in class BlankDebugEventListener
public void terminate()
DebugEventListener
terminate
in interface DebugEventListener
terminate
in class BlankDebugEventListener
public void setParser(DebugParser parser)
public String toNotifyString()
public Profiler.ProfileStats getReport()
public DoubleKeyMap<String,Integer,Profiler.DecisionDescriptor> getDecisionStats()
public List<Profiler.DecisionEvent> getDecisionEvents()
public static String toString(Profiler.ProfileStats stats)
public String getDecisionStatsDump()
protected int[] trim(int[] X, int n)
public int getNumberOfHiddenTokens(int i, int j)
protected String locationDescription()
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