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https://issues.apache.org/jira/browse/GROOVY-8917?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16715376#comment-16715376
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ASF GitHub Bot commented on GROOVY-8917:
----------------------------------------
GitHub user danielsun1106 opened a pull request:
https://github.com/apache/groovy/pull/837
GROOVY-8917: Failed to infer parameter type of some SAM, e.g. BinaryO…
…perator
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/danielsun1106/groovy refine-type-inference
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/groovy/pull/837.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #837
----
commit 3669f04205265b62e3a3f339aa1b81fbf3003ecb
Author: danielsun1106 <realbluesun@...>
Date: 2018-12-10T19:06:29Z
GROOVY-8917: Failed to infer parameter type of some SAM, e.g. BinaryOperator
----
> Failed to infer parameter type of some SAM, e.g. BinaryOperator
> ---------------------------------------------------------------
>
> Key: GROOVY-8917
> URL: https://issues.apache.org/jira/browse/GROOVY-8917
> Project: Groovy
> Issue Type: Bug
> Reporter: Daniel Sun
> Assignee: Daniel Sun
> Priority: Major
>
> {code:java}
> import groovy.transform.CompileStatic
> import java.util.stream.Collectors
> import java.util.stream.Stream
>
> @CompileStatic
> public class Test1 {
> public static void main(String[] args) {
> p();
> }
>
> public static void p() {
> // If we do not explicitly declare the type of parameter, STC
> fails
> assert 13 == [1, 2, 3].stream().reduce(7, (Integer r, Integer
> e) -> r + e);
> }
> }
> {code}
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