Dmitri Blinov created JEXL-316:
----------------------------------
Summary: Operator ?? has very low priority
Key: JEXL-316
URL: https://issues.apache.org/jira/browse/JEXL-316
Project: Commons JEXL
Issue Type: Bug
Affects Versions: 3.2
Reporter: Dmitri Blinov
In current version of JEXL the script
{code:java}
10??0 + 200 {code}
evaluates to 10, which is counterintuitive. It requires to always use
parantheses after {{\\??}}. The operator {{??}} should have higer priority. It
is the same problem as with current version of freemarker, but they promise to
fix it in the next major release.
The suggestion is to set priority of operator {{??}} to be between
{{UnaryExpression()}} and {{ValueExpression()}}
{code}
void ConditionalExpression() #void : {}
{
ConditionalOrExpression()
(
<QMARK> Expression() <COLON> Expression() #TernaryNode(3)
|
<ELVIS> Expression() #TernaryNode(2)
)?
}
...
void UnaryExpression() #void : {}
{
<minus> UnaryExpression() #UnaryMinusNode(1)
|
<plus> UnaryExpression() #UnaryPlusNode(1)
|
<tilda> UnaryExpression() #BitwiseComplNode(1)
|
(<not>|<NOT>) UnaryExpression() #NotNode(1)
|
<EMPTY> UnaryExpression() #EmptyFunction(1)
|
<SIZE> UnaryExpression() #SizeFunction(1)
|
NullpExpression()
}
void NullpExpression() #void : {}
{
ValueExpression()
(
<NULLP> ValueExpression() #NullpNode(2)
)*
}
{code}
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
