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Posted to notifications@groovy.apache.org by "zzy (Jira)" <ji...@apache.org> on 2020/07/26 11:47:00 UTC
[jira] [Updated] (GROOVY-9660) generic type class extend tarit
[ https://issues.apache.org/jira/browse/GROOVY-9660?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
zzy updated GROOVY-9660:
------------------------
Description:
*code example :*
trait Data {}
class TestData implements Data {}
class AbstractData<D extends Data>\{ D data }
def test = new AbstractData<TestData>()
*when i compile groovy，it compile failed:*
{color:#ff0000}org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:{color}
{color:#ff0000}TestTrait.groovy: 11: The type TestData is not a valid substitute for the bounded parameter <D extends io.github.hdfg159.Data>{color}
{color:#ff0000} @ line 11, column 29.{color}
{color:#ff0000} def test = new AbstractData<TestData>(){color}
What should i do to compile
was:
*code example :*
package io.github.hdfg159
trait Data {}
class TestData implements Data {}
class AbstractData<D extends Data> {
D data
}
def test = new AbstractData<TestData>()
*when i compile groovy，it compile failed:*
{color:#FF0000}org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:{color}
{color:#FF0000}TestTrait.groovy: 11: The type TestData is not a valid substitute for the bounded parameter <D extends io.github.hdfg159.Data>{color}
{color:#FF0000} @ line 11, column 29.{color}
{color:#FF0000} def test = new AbstractData<TestData>(){color}
> generic type class extend tarit
> -------------------------------
>
> Key: GROOVY-9660
> URL: https://issues.apache.org/jira/browse/GROOVY-9660
> Project: Groovy
> Issue Type: Question
> Components: Groovy Console
> Affects Versions: 3.0.5
> Environment: groovy 3.0.5 + jdk1.8
> Reporter: zzy
> Priority: Major
> Labels: build
>
> *code example :*
> trait Data {}
> class TestData implements Data {}
> class AbstractData<D extends Data>\{ D data }
> def test = new AbstractData<TestData>()
>
> *when i compile groovy，it compile failed:*
> {color:#ff0000}org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:{color}
> {color:#ff0000}TestTrait.groovy: 11: The type TestData is not a valid substitute for the bounded parameter <D extends io.github.hdfg159.Data>{color}
> {color:#ff0000} @ line 11, column 29.{color}
> {color:#ff0000} def test = new AbstractData<TestData>(){color}
>
> What should i do to compile
>
>
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