No, I confused right for lack of return type of this methods. The method
query() that parse entire query has return type boid. It is only modify the
state of the parser class state._fsp located in base class of Parser:
RecognizerSharedState. I suppose that after calling this method I must to
use standart feature of ANTLR for generating AST tree from this state.
This is a code of query() method that mutch query:
public final void query() throws RecognitionException {
try {
// C:\\Documents and
Settings\\rushan\\data\\workspace\\devel\\ANTLR\\sparkle-g-2.0\\src\\com\\sparkleg\\Sparql.g:36:5:
( prologue ( selectQuery | constructQuery | describeQuery | askQuery ) EOF )
// C:\\Documents and
Settings\\rushan\\data\\workspace\\devel\\ANTLR\\sparkle-g-2.0\\src\\com\\sparkleg\\Sparql.g:36:7:
prologue ( selectQuery | constructQuery | describeQuery | askQuery ) EOF
{
pushFollow(FOLLOW_prologue_in_query36);
prologue();
state._fsp--;
// C:\\Documents and
Settings\\rushan\\data\\workspace\\devel\\ANTLR\\sparkle-g-2.0\\src\\com\\sparkleg\\Sparql.g:36:16:
( selectQuery | constructQuery | describeQuery | askQuery )
int alt1=4;
switch ( input.LA(1) ) {
case SELECT:
{
alt1=1;
}
break;
case CONSTRUCT:
{
alt1=2;
}
break;
case DESCRIBE:
{
alt1=3;
}
break;
case ASK:
{
alt1=4;
}
break;
default:
NoViableAltException nvae =
new NoViableAltException("", 1, 0, input);
throw nvae;
}
switch (alt1) {
case 1 :
// C:\\Documents and
Settings\\rushan\\data\\workspace\\devel\\ANTLR\\sparkle-g-2.0\\src\\com\\sparkleg\\Sparql.g:36:18:
selectQuery
{
pushFollow(FOLLOW_selectQuery_in_query40);
selectQuery();
state._fsp--;
}
break;
case 2 :
// C:\\Documents and
Settings\\rushan\\data\\workspace\\devel\\ANTLR\\sparkle-g-2.0\\src\\com\\sparkleg\\Sparql.g:36:32:
constructQuery
{
pushFollow(FOLLOW_constructQuery_in_query44);
constructQuery();
state._fsp--;
}
break;
case 3 :
// C:\\Documents and
Settings\\rushan\\data\\workspace\\devel\\ANTLR\\sparkle-g-2.0\\src\\com\\sparkleg\\Sparql.g:36:49:
describeQuery
{
pushFollow(FOLLOW_describeQuery_in_query48);
describeQuery();
state._fsp--;
}
break;
case 4 :
// C:\\Documents and
Settings\\rushan\\data\\workspace\\devel\\ANTLR\\sparkle-g-2.0\\src\\com\\sparkleg\\Sparql.g:36:65:
askQuery
{
pushFollow(FOLLOW_askQuery_in_query52);
askQuery();
state._fsp--;
}
break;
}
match(input,EOF,FOLLOW_EOF_in_query56);
}
}
catch (RecognitionException re) {
reportError(re);
recover(input,re);
}
finally {
}
return ;
}
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