tkobayas commented on code in PR #5922:
URL:
https://github.com/apache/incubator-kie-drools/pull/5922#discussion_r1596414191
##########
drools-drl/drools-drl-parser/src/main/java/org/drools/drl/parser/antlr4/DRLVisitorImpl.java:
##########
@@ -542,7 +542,7 @@ public BaseDescr
visitLhsPatternBind(DRLParser.LhsPatternBindContext ctx) {
} else if (ctx.lhsPattern().size() > 1) {
return getOrDescrWithMultiplePatternDescr(ctx);
} else {
- throw new IllegalStateException("ctx.lhsPattern().size() == 0 : "
+ ctx.getText());
+ return null; // only caused by a parser error
Review Comment:
Users can read a parser error message, so no need of the explicit
IllegalStateException.
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