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https://issues.apache.org/jira/browse/CALCITE-4518?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17293915#comment-17293915
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Julian Hyde edited comment on CALCITE-4518 at 3/2/21, 6:43 PM:
---------------------------------------------------------------
Thanks for logging the Janino issue. We would potentially work-around by
generating "new Object[]\{(a < b),1,2}" rather than "new Object[]\{a < b,1,2}"
but it's better to wait for a Janino fix.
was (Author: julianhyde):
Thanks for logging the Janino issue. We would potentially work-around by
generating "new Object[]{(a < b),1,2}" rather than "new Object[]{a < b,1,2}"
but it's better to wait for a Janino fix.
> org.codehaus.commons.compiler.CompileException
> ----------------------------------------------
>
> Key: CALCITE-4518
> URL: https://issues.apache.org/jira/browse/CALCITE-4518
> Project: Calcite
> Issue Type: Bug
> Reporter: feng.huang
> Priority: Major
>
> calcite call janino to compile javacode in some case such as
> ReduceExpressionsRule#reduceExpressions, but there is something wrong with
> janino handling "<" operator.
>
> {code:java}
> public static void main(String[] args) throws IOException, CompileException {
> String code = "public Object[] apply(Object root0) {\n" +
> "int a=1;int b=2 ; " +
> "return new Object[]{a < b,1,2};\n" +
> "}\n";
> final ClassBodyEvaluator cbe = new ClassBodyEvaluator();
> cbe.setClassName("Test");
> cbe.setExtendedClass(Utilities.class);
> cbe.setImplementedInterfaces(new Class[]{Function1.class,
> Serializable.class});
> cbe.setParentClassLoader(RexExecutable.class.getClassLoader());
> cbe.cook(new Scanner(null, new StringReader(code)));
> }{code}
>
> when janino read "a < b , " , it regard this as the instance of rule :
> ShiftExpression<TypeArgument,TypeArgument...>, and then throw
> "CompileException: Line 2, Column 45: IDENTIFIER expected instead of '1'.
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