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Improved documentation and use of the Parser._tracer field; made the field private instead of protected

This commit is contained in:
Sam Harwell 2013-03-26 17:59:17 -05:00
parent 18bb9dc9be
commit dd9ba73b6f
1 changed files with 9 additions and 2 deletions
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11
runtime/Java/src/org/antlr/v4/runtime/Parser.java
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@ -127,7 +127,14 @@ public abstract class Parser extends Recognizer<Token, ParserATNSimulator> {
*/
protected boolean _buildParseTrees = true;
protected TraceListener _tracer;
/**
* When {@link #setTrace}{@code (true)} is called, a reference to the
* {@link TraceListener} is stored here so it can be easily removed in a
* later call to {@link #setTrace}{@code (false)}. The listener itself is
* implemented as a parser listener so this field is not directly used by
* other parser methods.
*/
private TraceListener _tracer;
/**
* The list of {@link ParseTreeListener} listeners registered to receive
@ -154,7 +161,7 @@ public abstract class Parser extends Recognizer<Token, ParserATNSimulator> {
_errHandler.reset(this);
_ctx = null;
_syntaxErrors = 0;
_tracer = null;
setTrace(false);
ATNSimulator interpreter = getInterpreter();
if (interpreter != null) {
interpreter.reset();