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https://issues.apache.org/jira/browse/GROOVY-12471?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Paul King updated GROOVY-12471:
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Summary: SC: Method abs misbehaves under static compilation (was: SC:
Method abs misbehaves under static compilaton)
> SC: Method abs misbehaves under static compilation
> --------------------------------------------------
>
> Key: GROOVY-12471
> URL: https://issues.apache.org/jira/browse/GROOVY-12471
> Project: Groovy
> Issue Type: Bug
> Affects Versions: 2.5.23, 3.0.25, 5.0.3, 4.0.33, 5.1.3, 6.0.0
> Reporter: Björn Kautler
> Priority: Major
>
> The snippet
> {code:groovy}
> @groovy.transform.CompileStatic
> def delta(Number item, Number value) {
> (item - value).abs()
> }
> println delta(2.2, 3.3)
> println delta(Long.MAX_VALUE, 1)
> {code}
> produces the outputs "1" and "2" while it should be "1.1" and
> "9223372036854775806".
> I assume the problem is, that SC chooses {{DGM.abs(Number)}} which unluckily
> assumes that {{{}Long{}}}, {{{}Float{}}}, {{{}Double{}}}, {{{}BigInteger{}}},
> and {{BigDecimal}} are handled by other methods (DGM or in the type itself)
> and thus treats any input as integer or smaller and returning {{{}int{}}},
> while this assumption does not necessarily hold under static compilation.
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