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https://issues.apache.org/jira/browse/GROOVY-12616?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18135684#comment-18135684
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ASF GitHub Bot commented on GROOVY-12616:
-----------------------------------------
codecov-commenter commented on PR #3142:
URL: https://github.com/apache/groovy/pull/3142#issuecomment-6540466544
##
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Report
:x: Patch coverage is `75.00000%` with `1 line` in your changes missing
coverage. Please review.
:white_check_mark: Project coverage is 74.1012%. Comparing base
([`ef76fcb`](https://app.codecov.io/gh/apache/groovy/commit/ef76fcba756be3331227627f78b5ba6b62109645?dropdown=coverage&el=desc&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache))
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([`d161d96`](https://app.codecov.io/gh/apache/groovy/commit/d161d96cbcf81c3d5be189f0fe34f2a84d488bb9?dropdown=coverage&el=desc&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache)).
| [Files with missing
lines](https://app.codecov.io/gh/apache/groovy/pull/3142?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache)
| Patch % | Lines |
|---|---|---|
|
[...roovy/transform/stc/StaticTypeCheckingVisitor.java](https://app.codecov.io/gh/apache/groovy/pull/3142?src=pr&el=tree&filepath=src%2Fmain%2Fjava%2Forg%2Fcodehaus%2Fgroovy%2Ftransform%2Fstc%2FStaticTypeCheckingVisitor.java&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache#diff-c3JjL21haW4vamF2YS9vcmcvY29kZWhhdXMvZ3Jvb3Z5L3RyYW5zZm9ybS9zdGMvU3RhdGljVHlwZUNoZWNraW5nVmlzaXRvci5qYXZh)
| 75.0000% | [0 Missing and 1 partial :warning:
](https://app.codecov.io/gh/apache/groovy/pull/3142?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache)
|
<details><summary>Additional details and impacted files</summary>
[](https://app.codecov.io/gh/apache/groovy/pull/3142?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache)
```diff
@@ Coverage Diff @@
## master #3142 +/- ##
=============================================
Coverage 74.1012% 74.1012%
- Complexity 43600 43606 +6
=============================================
Files 1692 1692
Lines 149254 149258 +4
Branches 28286 28288 +2
=============================================
+ Hits 110599 110602 +3
Misses 28475 28475
- Partials 10180 10181 +1
```
| [Files with missing
lines](https://app.codecov.io/gh/apache/groovy/pull/3142?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache)
| Coverage Δ | |
|---|---|---|
|
[...roovy/transform/stc/StaticTypeCheckingVisitor.java](https://app.codecov.io/gh/apache/groovy/pull/3142?src=pr&el=tree&filepath=src%2Fmain%2Fjava%2Forg%2Fcodehaus%2Fgroovy%2Ftransform%2Fstc%2FStaticTypeCheckingVisitor.java&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache#diff-c3JjL21haW4vamF2YS9vcmcvY29kZWhhdXMvZ3Jvb3Z5L3RyYW5zZm9ybS9zdGMvU3RhdGljVHlwZUNoZWNraW5nVmlzaXRvci5qYXZh)
| `88.1977% <75.0000%> (-0.0113%)` | :arrow_down: |
... and [14 files with indirect coverage
changes](https://app.codecov.io/gh/apache/groovy/pull/3142/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache)
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> STC rejects a closure or lambda that returns a primitive needing only a
> widening conversion to the SAM's primitive return type
> ------------------------------------------------------------------------------------------------------------------------------
>
> Key: GROOVY-12616
> URL: https://issues.apache.org/jira/browse/GROOVY-12616
> Project: Groovy
> Issue Type: Bug
> Affects Versions: 4.0.33, 5.0.8, 6.0.0
> Reporter: Scott Murphy Heiberg
> Priority: Major
>
> {code:groovy}
> import java.util.function.ToLongFunction
> @groovy.transform.CompileStatic
> class C {
> static void main(args) {
> ToLongFunction<String> f = (String s) -> s.length()
> assert f.applyAsLong('abc') == 3L
> }
> }
> {code}
> Actual: {{[Static type checking] - Cannot return value of type int for lambda
> expecting long}}. The same happens under @TypeChecked, with a closure (passed
> for a ToLongFunction parameter, or a closure returning 42 assigned to a
> LongSupplier), for ToDoubleFunction from int, long or float, for char to int,
> and for Integer to long.
> Expected: compiles and runs, as in Java (JLS 5.2 allows a widening primitive
> conversion, optionally after unboxing, in an assignment context) and as with
> the method reference {{C::len}} or method pointer {{C.&len}}. Narrowing (long
> to int) should still be rejected.
> Cause: {{StaticTypeCheckingVisitor.checkReturnType}} accepts a closure or
> lambda return value only when the wrapper of the SAM return type is
> compatible with the wrapper of the value type, and Long is not compatible
> with Integer.
> Seen in 4.0.33, 5.0.8 and 6.0.0.
> PR: https://github.com/apache/groovy/pull/3142
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