public class DebugEventRepeater extends Object implements DebugEventListener
DebugEventHub
Modifier and Type | Field and Description |
---|---|
protected DebugEventListener |
listener |
FALSE, PROTOCOL_VERSION, TRUE
Constructor and Description |
---|
DebugEventRepeater(DebugEventListener listener) |
Modifier and Type | Method and Description |
---|---|
void |
addChild(Object root,
Object child)
Make childID a child of rootID.
|
void |
becomeRoot(Object newRoot,
Object oldRoot)
Make a node the new root of an existing root.
|
void |
beginBacktrack(int level) |
void |
beginResync()
Indicates the recognizer is about to consume tokens to resynchronize
the parser.
|
void |
commence()
Announce that parsing has begun.
|
void |
consumeHiddenToken(Token token)
An off-channel input token was consumed.
|
void |
consumeNode(Object t)
Input for a tree parser is an AST, but we know nothing for sure
about a node except its type and text (obtained from the adaptor).
|
void |
consumeToken(Token token)
An input token was consumed; matched by any kind of element.
|
void |
createNode(Object t)
Announce a new node built from token elements such as type etc...
|
void |
createNode(Object node,
Token token)
Announce a new node built from an existing token.
|
void |
endBacktrack(int level,
boolean successful) |
void |
endResync()
Indicates that the recognizer has finished consuming tokens in order
to resychronize.
|
void |
enterAlt(int alt)
Because rules can have lots of alternatives, it is very useful to
know which alt you are entering.
|
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 |
enterSubRule(int decisionNumber)
Track entry into any (...) subrule other EBNF construct
|
void |
errorNode(Object t)
Upon syntax error, recognizers bracket the error with an error node
if they are building ASTs.
|
void |
exitDecision(int decisionNumber) |
void |
exitRule(String grammarFileName,
String ruleName)
This is the last thing executed before leaving a rule.
|
void |
exitSubRule(int decisionNumber) |
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.
|
void |
LT(int i,
Object t)
The tree parser lookedahead.
|
void |
LT(int i,
Token t)
Somebody (anybody) looked ahead.
|
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 |
nilNode(Object t)
A nil was created (even nil nodes have a unique ID...
|
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 |
setTokenBoundaries(Object t,
int tokenStartIndex,
int tokenStopIndex)
Set the token start/stop token index for a subtree root or node.
|
void |
terminate()
Parsing is over; successfully or not.
|
protected DebugEventListener listener
public DebugEventRepeater(DebugEventListener listener)
public void enterRule(String grammarFileName, String ruleName)
DebugEventListener
enterRule
in interface DebugEventListener
public void exitRule(String grammarFileName, String ruleName)
DebugEventListener
exitRule
in interface DebugEventListener
public void enterAlt(int alt)
DebugEventListener
enterAlt
in interface DebugEventListener
public void enterSubRule(int decisionNumber)
DebugEventListener
enterSubRule
in interface DebugEventListener
public void exitSubRule(int decisionNumber)
exitSubRule
in interface DebugEventListener
public void enterDecision(int decisionNumber, boolean couldBacktrack)
DebugEventListener
enterDecision
in interface DebugEventListener
public void exitDecision(int decisionNumber)
exitDecision
in interface DebugEventListener
public void location(int line, int pos)
DebugEventListener
location
in interface DebugEventListener
public void consumeToken(Token token)
DebugEventListener
consumeToken
in interface DebugEventListener
public void consumeHiddenToken(Token token)
DebugEventListener
consumeHiddenToken
in interface DebugEventListener
public void LT(int i, Token t)
DebugEventListener
LT
in interface DebugEventListener
public void mark(int i)
DebugEventListener
mark
in interface DebugEventListener
public void rewind(int i)
DebugEventListener
rewind
in interface DebugEventListener
public void rewind()
DebugEventListener
rewind
in interface DebugEventListener
public void beginBacktrack(int level)
beginBacktrack
in interface DebugEventListener
public void endBacktrack(int level, boolean successful)
endBacktrack
in interface DebugEventListener
public void recognitionException(RecognitionException e)
DebugEventListener
recognitionException
in interface DebugEventListener
public void beginResync()
DebugEventListener
beginResync
in interface DebugEventListener
public void endResync()
DebugEventListener
endResync
in interface DebugEventListener
public void semanticPredicate(boolean result, String predicate)
DebugEventListener
semanticPredicate
in interface DebugEventListener
public void commence()
DebugEventListener
commence
in interface DebugEventListener
public void terminate()
DebugEventListener
terminate
in interface DebugEventListener
public void consumeNode(Object t)
DebugEventListener
consumeNode
in interface DebugEventListener
public void LT(int i, Object t)
DebugEventListener
LT
in interface DebugEventListener
public void nilNode(Object t)
DebugEventListener
nilNode
in interface DebugEventListener
public void errorNode(Object t)
DebugEventListener
errorNode
in interface DebugEventListener
public void createNode(Object t)
DebugEventListener
createNode
in interface DebugEventListener
public void createNode(Object node, Token token)
DebugEventListener
createNode
in interface DebugEventListener
public void becomeRoot(Object newRoot, Object oldRoot)
DebugEventListener
becomeRoot
in interface DebugEventListener
TreeAdaptor.becomeRoot(java.lang.Object, java.lang.Object)
public void addChild(Object root, Object child)
DebugEventListener
addChild
in interface DebugEventListener
TreeAdaptor.addChild(java.lang.Object, java.lang.Object)
public void setTokenBoundaries(Object t, int tokenStartIndex, int tokenStopIndex)
DebugEventListener
setTokenBoundaries
in interface DebugEventListener
Copyright © 1992–2015 ANTLR. All rights reserved.