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Posted to notifications@groovy.apache.org by "Eric Milles (Jira)" <ji...@apache.org> on 2019/12/15 18:45:00 UTC

[jira] [Created] (GROOVY-9342) SC: Lambda in static initializer that uses field on LHS of += produces error

Eric Milles created GROOVY-9342:
-----------------------------------

             Summary: SC: Lambda in static initializer that uses field on LHS of += produces error
                 Key: GROOVY-9342
                 URL: https://issues.apache.org/jira/browse/GROOVY-9342
             Project: Groovy
          Issue Type: Bug
            Reporter: Eric Milles


Follow up to GROOVY-9332 and GROOVY-9333.  Consider the following:
{code:groovy}
@groovy.transform.CompileStatic
class Test1 {
    static int acc = 1
    static { [1, 2, 3].forEach(e -> acc += e) }
}
assert Test1.acc == 7
{code}

{code}
org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
    TestScript60.groovy: 5: [Static type checking] - Cannot find matching method int#plus(java.lang.Object). Please check if the declared type is correct and if the method exists.
     @ line 5, column 49.
       atic { [1, 2, 3].forEach(e -> acc += e)
                                     ^

    1 error
        at org.codehaus.groovy.control.ErrorCollector.failIfErrors(ErrorCollector.java:287)
        at org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:1091)
        at org.codehaus.groovy.control.CompilationUnit.doPhaseOperation(CompilationUnit.java:633)
        at org.codehaus.groovy.control.CompilationUnit.processPhaseOperations(CompilationUnit.java:612)
        at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:589)
        at groovy.lang.GroovyClassLoader.doParseClass(GroovyClassLoader.java:367)
        at groovy.lang.GroovyClassLoader.lambda$parseClass$2(GroovyClassLoader.java:310)
        ...
{code}



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