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https://issues.apache.org/jira/browse/DRILL-6870?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16697346#comment-16697346
]
ASF GitHub Bot commented on DRILL-6870:
---------------------------------------
arina-ielchiieva commented on a change in pull request #1554: DRILL-6870:
Upgrade to ANTLR4
URL: https://github.com/apache/drill/pull/1554#discussion_r235989187
##########
File path:
logical/src/main/antlr4/org/apache/drill/common/expression/parser/ExprParser.g4
##########
@@ -55,25 +47,20 @@ import
org.apache.drill.common.exceptions.ExpressionParsingException;
public ExpressionPosition pos(Token token){
return new ExpressionPosition(fullExpression, token.getTokenIndex());
}
-
- @Override
- public void displayRecognitionError(String[] tokenNames,
RecognitionException e) {
- String hdr = getErrorHeader(e);
- String msg = getErrorMessage(e, tokenNames);
- throw new ExpressionParsingException("Expression has syntax error! " + hdr
+ ":" + msg);
- }
}
parse returns [LogicalExpression e]
: expression EOF {
- $e = $expression.e;
- if(fullExpression == null) fullExpression = $expression.text;
+ $e = $expression.e;
+ if (fullExpression == null) fullExpression = $expression.text;
tokenPos = $expression.start.getTokenIndex();
}
;
functionCall returns [LogicalExpression e]
- : Identifier OParen exprList? CParen {$e =
FunctionCallFactory.createExpression($Identifier.text, pos($Identifier),
$exprList.listE); }
+ : Identifier OParen exprList? CParen {$e =
+ FunctionCallFactory.createExpression($Identifier.text, pos($Identifier),
+ ($exprList.ctx == null ? new ArrayList<LogicalExpression>() :
$exprList.listE)); }
Review comment:
Agree, removed in other places as well.
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> Upgrade to ANTLR4
> -----------------
>
> Key: DRILL-6870
> URL: https://issues.apache.org/jira/browse/DRILL-6870
> Project: Apache Drill
> Issue Type: Task
> Reporter: Arina Ielchiieva
> Assignee: Arina Ielchiieva
> Priority: Major
> Fix For: 1.15.0
>
>
> Upgrade from ANTLR3 to ANTLR4.
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