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https://issues.apache.org/jira/browse/GROOVY-9336?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eric Milles updated GROOVY-9336:
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Fix Version/s: 2.5.16
> Shift operator used in field initial value expression causing incorrect type
> conversion
> ---------------------------------------------------------------------------------------
>
> Key: GROOVY-9336
> URL: https://issues.apache.org/jira/browse/GROOVY-9336
> Project: Groovy
> Issue Type: Bug
> Reporter: Eric Milles
> Assignee: Eric Milles
> Priority: Major
> Fix For: 3.0.0-rc-3, 2.5.16
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> Consider the following:
> {code:groovy}
> class C {
> public static final double D = 2 << 16 - 1
> }
> {code}
> User has omitted parentheses around "2 << 16" and so this is evaluated as {{2
> << (16 - 1)}}. During inline constant conversion
> ({{ExpressionUtils.transformInlineConstants}}), the right side of the shift
> operator is converted to a double and this results in:
> {code}
> java.lang.UnsupportedOperationException: Shift distance must be an integral
> type, but 15.0 (java.lang.Double) was supplied
> at
> org.codehaus.groovy.runtime.typehandling.NumberMath.leftShift(NumberMath.java:99)
> at
> org.apache.groovy.ast.tools.ExpressionUtils.transformBinaryConstantExpression(ExpressionUtils.java:113)
> {code}
> I think that the right side of any shift operation should be converted to int
> (not double in this case).
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