Björn Kautler created GROOVY-12471:
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Summary: SC: Method abs misbehaves under static compilaton
Key: GROOVY-12471
URL: https://issues.apache.org/jira/browse/GROOVY-12471
Project: Groovy
Issue Type: Bug
Affects Versions: 6.0.0, 5.1.3, 4.0.33, 5.0.3, 3.0.25, 2.5.23
Reporter: Björn Kautler
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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